Issue #1258 - Part 1: Import mailnews, ldap, and mork from comm-esr52.9.1

109 files changed, 33641 insertions, 0 deletions

diff --git a/mailnews/extensions/bayesian-spam-filter/moz.build b/mailnews/extensions/bayesian-spam-filter/moz.build
new file mode 100644
index 000000000..8755860cb
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/moz.build
@@ -0,0 +1,6 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += ['src']
diff --git a/mailnews/extensions/bayesian-spam-filter/src/moz.build b/mailnews/extensions/bayesian-spam-filter/src/moz.build
new file mode 100644
index 000000000..5819766a3
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/src/moz.build
@@ -0,0 +1,11 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+    'nsBayesianFilter.cpp',
+]
+
+FINAL_LIBRARY = 'mail'
+
diff --git a/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.cpp b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.cpp
new file mode 100644
index 000000000..0fa5aa1e2
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.cpp
@@ -0,0 +1,2758 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsBayesianFilter.h"
+#include "nsIInputStream.h"
+#include "nsIStreamListener.h"
+#include "nsNetUtil.h"
+#include "nsQuickSort.h"
+#include "nsIMsgMessageService.h"
+#include "nsMsgUtils.h" // for GetMessageServiceFromURI
+#include "prnetdb.h"
+#include "nsIMsgWindow.h"
+#include "mozilla/Logging.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsUnicharUtils.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsIMIMEHeaderParam.h"
+#include "nsNetCID.h"
+#include "nsIMimeHeaders.h"
+#include "nsMsgMimeCID.h"
+#include "nsIMsgMailNewsUrl.h"
+#include "nsIMimeMiscStatus.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsIStringEnumerator.h"
+#include "nsIObserverService.h"
+#include "nsIChannel.h"
+
+using namespace mozilla;
+
+// needed to mark attachment flag on the db hdr
+#include "nsIMsgHdr.h"
+
+// needed to strip html out of the body
+#include "nsIContentSerializer.h"
+#include "nsLayoutCID.h"
+#include "nsIParserUtils.h"
+#include "nsIDocumentEncoder.h"
+
+#include "nsIncompleteGamma.h"
+#include <math.h>
+#include <prmem.h>
+#include "nsIMsgTraitService.h"
+#include "mozilla/Services.h"
+#include "mozilla/Attributes.h"
+#include <cstdlib> // for std::abs(int/long)
+#include <cmath> // for std::abs(float/double)
+
+static PRLogModuleInfo *BayesianFilterLogModule = nullptr;
+
+#define kDefaultJunkThreshold .99 // we override this value via a pref
+static const char* kBayesianFilterTokenDelimiters = " \t\n\r\f.";
+static unsigned int kMinLengthForToken = 3; // lower bound on the number of characters in a word before we treat it as a token
+static unsigned int kMaxLengthForToken = 12; // upper bound on the number of characters in a word to be declared as a token
+
+#define FORGED_RECEIVED_HEADER_HINT NS_LITERAL_CSTRING("may be forged")
+
+#ifndef M_LN2
+#define M_LN2 0.69314718055994530942
+#endif
+
+#ifndef M_E
+#define M_E   2.7182818284590452354
+#endif
+
+// provide base implementation of hash lookup of a string
+struct BaseToken : public PLDHashEntryHdr
+{
+    const char* mWord;
+};
+
+// token for a particular message
+// mCount, mAnalysisLink are initialized to zero by the hash code
+struct Token : public BaseToken {
+    uint32_t mCount;
+    uint32_t mAnalysisLink; // index in mAnalysisStore of the AnalysisPerToken
+                            // object for the first trait for this token
+};
+
+// token stored in a training file for a group of messages
+// mTraitLink is initialized to 0 by the hash code
+struct CorpusToken : public BaseToken
+{
+    uint32_t mTraitLink;    // index in mTraitStore of the TraitPerToken
+                            // object for the first trait for this token
+};
+
+// set the value of a TraitPerToken object
+TraitPerToken::TraitPerToken(uint32_t aTraitId, uint32_t aCount)
+  :  mId(aTraitId), mCount(aCount), mNextLink(0)
+{
+}
+
+// shorthand representations of trait ids for junk and good
+static const uint32_t kJunkTrait = nsIJunkMailPlugin::JUNK_TRAIT;
+static const uint32_t kGoodTrait = nsIJunkMailPlugin::GOOD_TRAIT;
+
+// set the value of an AnalysisPerToken object
+AnalysisPerToken::AnalysisPerToken(
+  uint32_t aTraitIndex, double aDistance, double aProbability) :
+    mTraitIndex(aTraitIndex),
+    mDistance(aDistance),
+    mProbability(aProbability),
+    mNextLink(0)
+{
+}
+
+// the initial size of the AnalysisPerToken linked list storage
+const uint32_t kAnalysisStoreCapacity = 2048;
+
+// the initial size of the TraitPerToken linked list storage
+const uint32_t kTraitStoreCapacity = 16384;
+
+// Size of Auto arrays representing per trait information
+const uint32_t kTraitAutoCapacity = 10;
+
+TokenEnumeration::TokenEnumeration(PLDHashTable* table)
+    :   mIterator(table->Iter())
+{
+}
+
+inline bool TokenEnumeration::hasMoreTokens()
+{
+    return !mIterator.Done();
+}
+
+inline BaseToken* TokenEnumeration::nextToken()
+{
+    auto token = static_cast<BaseToken*>(mIterator.Get());
+    mIterator.Next();
+    return token;
+}
+
+// member variables
+static const PLDHashTableOps gTokenTableOps = {
+    PLDHashTable::HashStringKey,
+    PLDHashTable::MatchStringKey,
+    PLDHashTable::MoveEntryStub,
+    PLDHashTable::ClearEntryStub,
+    nullptr
+};
+
+TokenHash::TokenHash(uint32_t aEntrySize)
+  : mTokenTable(&gTokenTableOps, aEntrySize, 128)
+{
+    mEntrySize = aEntrySize;
+    PL_INIT_ARENA_POOL(&mWordPool, "Words Arena", 16384);
+}
+
+TokenHash::~TokenHash()
+{
+    PL_FinishArenaPool(&mWordPool);
+}
+
+nsresult TokenHash::clearTokens()
+{
+    // we re-use the tokenizer when classifying multiple messages,
+    // so this gets called after every message classification.
+    mTokenTable.ClearAndPrepareForLength(128);
+    PL_FreeArenaPool(&mWordPool);
+    return NS_OK;
+}
+
+char* TokenHash::copyWord(const char* word, uint32_t len)
+{
+    void* result;
+    uint32_t size = 1 + len;
+    PL_ARENA_ALLOCATE(result, &mWordPool, size);
+    if (result)
+        memcpy(result, word, size);
+    return reinterpret_cast<char*>(result);
+}
+
+inline BaseToken* TokenHash::get(const char* word)
+{
+    PLDHashEntryHdr* entry = mTokenTable.Search(word);
+    if (entry)
+        return static_cast<BaseToken*>(entry);
+    return NULL;
+}
+
+BaseToken* TokenHash::add(const char* word)
+{
+    if (!word || !*word)
+    {
+      NS_ERROR("Trying to add a null word");
+      return nullptr;
+    }
+
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("add word: %s", word));
+
+    PLDHashEntryHdr* entry = mTokenTable.Add(word, mozilla::fallible);
+    BaseToken* token = static_cast<BaseToken*>(entry);
+    if (token) {
+        if (token->mWord == NULL) {
+            uint32_t len = strlen(word);
+            NS_ASSERTION(len != 0, "adding zero length word to tokenizer");
+            if (!len)
+              MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("adding zero length word to tokenizer"));
+            token->mWord = copyWord(word, len);
+            NS_ASSERTION(token->mWord, "copyWord failed");
+            if (!token->mWord) {
+                MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("copyWord failed: %s (%d)", word, len));
+                mTokenTable.RawRemove(entry);
+                return NULL;
+            }
+        }
+    }
+    return token;
+}
+
+inline uint32_t TokenHash::countTokens()
+{
+  return mTokenTable.EntryCount();
+}
+
+inline TokenEnumeration TokenHash::getTokens()
+{
+  return TokenEnumeration(&mTokenTable);
+}
+
+Tokenizer::Tokenizer() :
+  TokenHash(sizeof(Token)),
+  mBodyDelimiters(kBayesianFilterTokenDelimiters),
+  mHeaderDelimiters(kBayesianFilterTokenDelimiters),
+  mCustomHeaderTokenization(false),
+  mMaxLengthForToken(kMaxLengthForToken),
+  mIframeToDiv(false)
+{
+  nsresult rv;
+  nsCOMPtr<nsIPrefService> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS_VOID(rv);
+
+  nsCOMPtr<nsIPrefBranch> prefBranch;
+  rv = prefs->GetBranch("mailnews.bayesian_spam_filter.", getter_AddRefs(prefBranch));
+  NS_ENSURE_SUCCESS_VOID(rv); // no branch defined, just use defaults
+
+  /*
+   * RSS feeds store their summary as alternate content of an iframe. But due
+   * to bug 365953, this is not seen by the serializer. As a workaround, allow
+   * the tokenizer to replace the iframe with div for tokenization.
+   */
+  rv = prefBranch->GetBoolPref("iframe_to_div", &mIframeToDiv);
+  if (NS_FAILED(rv))
+    mIframeToDiv = false;
+
+  /*
+   * the list of delimiters used to tokenize the message and body
+   * defaults to the value in kBayesianFilterTokenDelimiters, but may be
+   * set with the following preferences for the body and header
+   * separately.
+   *
+   * \t, \n, \v, \f, \r, and \\ will be escaped to their normal
+   * C-library values, all other two-letter combinations beginning with \
+   * will be ignored.
+   */
+
+  prefBranch->GetCharPref("body_delimiters", getter_Copies(mBodyDelimiters));
+  if (!mBodyDelimiters.IsEmpty())
+    UnescapeCString(mBodyDelimiters);
+  else // prefBranch empties the result when it fails :(
+    mBodyDelimiters.Assign(kBayesianFilterTokenDelimiters);
+
+  prefBranch->GetCharPref("header_delimiters", getter_Copies(mHeaderDelimiters));
+  if (!mHeaderDelimiters.IsEmpty())
+    UnescapeCString(mHeaderDelimiters);
+  else
+    mHeaderDelimiters.Assign(kBayesianFilterTokenDelimiters);
+
+  /*
+   * Extensions may wish to enable or disable tokenization of certain headers.
+   * Define any headers to enable/disable in a string preference like this:
+   *   "mailnews.bayesian_spam_filter.tokenizeheader.headername"
+   *
+   * where "headername" is the header to tokenize. For example, to tokenize the
+   * header "x-spam-status" use the preference:
+   *
+   *   "mailnews.bayesian_spam_filter.tokenizeheader.x-spam-status"
+   *
+   * The value of the string preference will be interpreted in one of
+   * four ways, depending on the value:
+   *
+   *   If "false" then do not tokenize that header
+   *   If "full" then add the entire header value as a token,
+   *     without breaking up into subtokens using delimiters
+   *   If "standard" then tokenize the header using as delimiters the current
+   *     value of the generic header delimiters
+   *   Any other string is interpreted as a list of delimiters to use to parse
+   *     the header. \t, \n, \v, \f, \r, and \\ will be escaped to their normal
+   *     C-library values, all other two-letter combinations beginning with \
+   *     will be ignored.
+   *
+   * Header names in the preference should be all lower case
+   *
+   * Extensions may also set the maximum length of a token (default is
+   * kMaxLengthForToken) by setting the int preference:
+   *   "mailnews.bayesian_spam_filter.maxlengthfortoken"
+   */
+
+  char** headers;
+  uint32_t count;
+
+  // get customized maximum token length
+  int32_t maxLengthForToken;
+  rv = prefBranch->GetIntPref("maxlengthfortoken", &maxLengthForToken);
+  mMaxLengthForToken = NS_SUCCEEDED(rv) ? uint32_t(maxLengthForToken) : kMaxLengthForToken;
+
+  rv = prefs->GetBranch("mailnews.bayesian_spam_filter.tokenizeheader.", getter_AddRefs(prefBranch));
+  if (NS_SUCCEEDED(rv))
+    rv = prefBranch->GetChildList("", &count, &headers);
+
+  if (NS_SUCCEEDED(rv))
+  {
+    mCustomHeaderTokenization = true;
+    for (uint32_t i = 0; i < count; i++)
+    {
+      nsCString value;
+      prefBranch->GetCharPref(headers[i], getter_Copies(value));
+      if (value.EqualsLiteral("false"))
+      {
+        mDisabledHeaders.AppendElement(headers[i]);
+        continue;
+      }
+      mEnabledHeaders.AppendElement(headers[i]);
+      if (value.EqualsLiteral("standard"))
+        value.SetIsVoid(true); // Void means use default delimiter
+      else if (value.EqualsLiteral("full"))
+        value.Truncate(); // Empty means add full header
+      else
+        UnescapeCString(value);
+      mEnabledHeadersDelimiters.AppendElement(value);
+    }
+    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, headers);
+  }
+}
+
+Tokenizer::~Tokenizer()
+{
+}
+
+inline Token* Tokenizer::get(const char* word)
+{
+  return static_cast<Token*>(TokenHash::get(word));
+}
+
+Token* Tokenizer::add(const char* word, uint32_t count)
+{
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("add word: %s (count=%d)",
+         word, count));
+
+  Token* token = static_cast<Token*>(TokenHash::add(word));
+  if (token)
+  {
+    token->mCount += count; // hash code initializes this to zero
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug,
+           ("adding word to tokenizer: %s (count=%d) (mCount=%d)",
+           word, count, token->mCount));
+  }
+  return token;
+}
+
+static bool isDecimalNumber(const char* word)
+{
+    const char* p = word;
+    if (*p == '-') ++p;
+    char c;
+    while ((c = *p++)) {
+        if (!isdigit((unsigned char) c))
+            return false;
+    }
+    return true;
+}
+
+static bool isASCII(const char* word)
+{
+    const unsigned char* p = (const unsigned char*)word;
+    unsigned char c;
+    while ((c = *p++)) {
+        if (c > 127)
+            return false;
+    }
+    return true;
+}
+
+inline bool isUpperCase(char c) { return ('A' <= c) && (c <= 'Z'); }
+
+static char* toLowerCase(char* str)
+{
+    char c, *p = str;
+    while ((c = *p++)) {
+        if (isUpperCase(c))
+            p[-1] = c + ('a' - 'A');
+    }
+    return str;
+}
+
+void Tokenizer::addTokenForHeader(const char * aTokenPrefix, nsACString& aValue,
+                                  bool aTokenizeValue, const char* aDelimiters)
+{
+  if (aValue.Length())
+  {
+    ToLowerCase(aValue);
+    if (!aTokenizeValue)
+    {
+      nsCString tmpStr;
+      tmpStr.Assign(aTokenPrefix);
+      tmpStr.Append(':');
+      tmpStr.Append(aValue);
+
+      add(tmpStr.get());
+    }
+    else
+    {
+      char* word;
+      nsCString str(aValue);
+      char *next = str.BeginWriting();
+      const char* delimiters = !aDelimiters ?
+          mHeaderDelimiters.get() : aDelimiters;
+      while ((word = NS_strtok(delimiters, &next)) != NULL)
+      {
+        if (strlen(word) < kMinLengthForToken)
+          continue;
+        if (isDecimalNumber(word))
+          continue;
+        if (isASCII(word))
+        {
+          nsCString tmpStr;
+          tmpStr.Assign(aTokenPrefix);
+          tmpStr.Append(':');
+          tmpStr.Append(word);
+          add(tmpStr.get());
+        }
+      }
+    }
+  }
+}
+
+void Tokenizer::tokenizeAttachment(const char * aContentType, const char * aFileName)
+{
+  nsAutoCString contentType;
+  nsAutoCString fileName;
+  fileName.Assign(aFileName);
+  contentType.Assign(aContentType);
+
+  // normalize the content type and the file name
+  ToLowerCase(fileName);
+  ToLowerCase(contentType);
+  addTokenForHeader("attachment/filename", fileName);
+
+  addTokenForHeader("attachment/content-type", contentType);
+}
+
+void Tokenizer::tokenizeHeaders(nsIUTF8StringEnumerator * aHeaderNames, nsIUTF8StringEnumerator * aHeaderValues)
+{
+  nsCString headerValue;
+  nsAutoCString headerName; // we'll be normalizing all header names to lower case
+  bool hasMore;
+ 
+  while (aHeaderNames->HasMore(&hasMore), hasMore)
+  {
+    aHeaderNames->GetNext(headerName);
+    ToLowerCase(headerName);
+    aHeaderValues->GetNext(headerValue);
+
+    bool headerProcessed = false;
+    if (mCustomHeaderTokenization)
+    {
+      // Process any exceptions set from preferences
+      for (uint32_t i = 0; i < mEnabledHeaders.Length(); i++)
+        if (headerName.Equals(mEnabledHeaders[i]))
+        {
+          if (mEnabledHeadersDelimiters[i].IsVoid())
+            // tokenize with standard delimiters for all headers
+            addTokenForHeader(headerName.get(), headerValue, true);
+          else if (mEnabledHeadersDelimiters[i].IsEmpty())
+            // do not break the header into tokens
+            addTokenForHeader(headerName.get(), headerValue);
+          else
+            // use the delimiter in mEnabledHeadersDelimiters
+            addTokenForHeader(headerName.get(), headerValue, true,
+                              mEnabledHeadersDelimiters[i].get());
+          headerProcessed = true;
+          break; // we found the header, no need to look for more custom values
+        }
+
+      for (uint32_t i = 0; i < mDisabledHeaders.Length(); i++)
+      {
+        if (headerName.Equals(mDisabledHeaders[i]))
+        {
+          headerProcessed = true;
+          break;
+        }
+      }
+
+      if (headerProcessed)
+        continue;
+    }
+
+    switch (headerName.First())
+    {
+    case 'c':
+        if (headerName.Equals("content-type"))
+        {
+          nsresult rv;
+          nsCOMPtr<nsIMIMEHeaderParam> mimehdrpar = do_GetService(NS_MIMEHEADERPARAM_CONTRACTID, &rv);
+          if (NS_FAILED(rv))
+            break;
+
+          // extract the charset parameter
+          nsCString parameterValue;
+          mimehdrpar->GetParameterInternal(headerValue.get(), "charset", nullptr, nullptr, getter_Copies(parameterValue));
+          addTokenForHeader("charset", parameterValue);
+
+          // create a token containing just the content type
+          mimehdrpar->GetParameterInternal(headerValue.get(), "type", nullptr, nullptr, getter_Copies(parameterValue));
+          if (!parameterValue.Length())
+            mimehdrpar->GetParameterInternal(headerValue.get(), nullptr /* use first unnamed param */, nullptr, nullptr, getter_Copies(parameterValue));
+          addTokenForHeader("content-type/type", parameterValue);
+
+          // XXX: should we add a token for the entire content-type header as well or just these parts we have extracted?
+        }
+        break;
+    case 'r':
+      if (headerName.Equals("received"))
+      {
+        // look for the string "may be forged" in the received headers. sendmail sometimes adds this hint
+        // This does not compile on linux yet. Need to figure out why. Commenting out for now
+        // if (FindInReadable(FORGED_RECEIVED_HEADER_HINT, headerValue))
+        //   addTokenForHeader(headerName.get(), FORGED_RECEIVED_HEADER_HINT);
+      }
+
+      // leave out reply-to
+      break;
+    case 's':
+        if (headerName.Equals("subject"))
+        {
+          // we want to tokenize the subject
+          addTokenForHeader(headerName.get(), headerValue, true);
+        }
+
+        // important: leave out sender field. Too strong of an indicator
+        break;
+    case 'x': // (2) X-Mailer / user-agent works best if it is untokenized, just fold the case and any leading/trailing white space
+        // all headers beginning with x-mozilla are being changed by us, so ignore
+        if (Substring(headerName, 0, 9).Equals("x-mozilla"))
+          break;
+        // fall through
+        MOZ_FALLTHROUGH;
+    case 'u':
+        addTokenForHeader(headerName.get(), headerValue);
+        break;
+    default:
+        addTokenForHeader(headerName.get(), headerValue);
+        break;
+    } // end switch
+
+  }
+}
+
+void Tokenizer::tokenize_ascii_word(char * aWord)
+{
+  // always deal with normalized lower case strings
+  toLowerCase(aWord);
+  uint32_t wordLength = strlen(aWord);
+
+  // if the wordLength is within our accepted token limit, then add it
+  if (wordLength >= kMinLengthForToken && wordLength <= mMaxLengthForToken)
+    add(aWord);
+  else if (wordLength > mMaxLengthForToken)
+  {
+    // don't skip over the word if it looks like an email address,
+    // there is value in adding tokens for addresses
+    nsDependentCString word (aWord, wordLength); // CHEAP, no allocation occurs here...
+
+    // XXX: i think the 40 byte check is just for perf reasons...if the email address is longer than that then forget about it.
+    const char *atSign = strchr(aWord, '@');
+    if (wordLength < 40 && strchr(aWord, '.') && atSign && !strchr(atSign + 1, '@'))
+    {
+      uint32_t numBytesToSep = atSign - aWord;
+      if (numBytesToSep < wordLength - 1) // if the @ sign is the last character, it must not be an email address
+      {
+        // split the john@foo.com into john and foo.com, treat them as separate tokens
+        nsCString emailNameToken;
+        emailNameToken.AssignLiteral("email name:");
+        emailNameToken.Append(Substring(word, 0, numBytesToSep++));
+        add(emailNameToken.get());
+        nsCString emailAddrToken;
+        emailAddrToken.AssignLiteral("email addr:");
+        emailAddrToken.Append(Substring(word, numBytesToSep, wordLength - numBytesToSep));
+        add(emailAddrToken.get());
+        return;
+      }
+    }
+
+    // there is value in generating a token indicating the number
+    // of characters we are skipping. We'll round to the nearest 10
+    nsCString skipToken;
+    skipToken.AssignLiteral("skip:");
+    skipToken.Append(word[0]);
+    skipToken.Append(' ');
+    skipToken.AppendInt((wordLength/10) * 10);
+    add(skipToken.get());
+  }
+}
+
+// one substract and one conditional jump should be faster than two conditional jump on most recent system.
+#define IN_RANGE(x, low, high)  ((uint16_t)((x)-(low)) <= (high)-(low))
+
+#define IS_JA_HIRAGANA(x)   IN_RANGE(x, 0x3040, 0x309F)
+// swapping the range using xor operation to reduce conditional jump.
+#define IS_JA_KATAKANA(x)	(IN_RANGE(x^0x0004, 0x30A0, 0x30FE)||(IN_RANGE(x, 0xFF66, 0xFF9F)))
+#define IS_JA_KANJI(x)      (IN_RANGE(x, 0x2E80, 0x2FDF)||IN_RANGE(x, 0x4E00, 0x9FAF))
+#define IS_JA_KUTEN(x)      (((x)==0x3001)||((x)==0xFF64)||((x)==0xFF0E))
+#define IS_JA_TOUTEN(x)     (((x)==0x3002)||((x)==0xFF61)||((x)==0xFF0C))
+#define IS_JA_SPACE(x)      ((x)==0x3000)
+#define IS_JA_FWLATAIN(x)   IN_RANGE(x, 0xFF01, 0xFF5E)
+#define IS_JA_FWNUMERAL(x)  IN_RANGE(x, 0xFF10, 0xFF19)
+
+#define IS_JAPANESE_SPECIFIC(x) (IN_RANGE(x, 0x3040, 0x30FF)||IN_RANGE(x, 0xFF01, 0xFF9F))
+
+enum char_class{
+    others = 0,
+    space,
+    hiragana,
+    katakana,
+    kanji,
+    kuten,
+    touten,
+    kigou,
+    fwlatain,
+    ascii
+};
+
+static char_class getCharClass(char16_t c)
+{
+  char_class charClass = others;
+
+  if(IS_JA_HIRAGANA(c))
+    charClass = hiragana;
+  else if(IS_JA_KATAKANA(c))
+    charClass = katakana;
+  else if(IS_JA_KANJI(c))
+    charClass = kanji;
+  else if(IS_JA_KUTEN(c))
+    charClass = kuten;
+  else if(IS_JA_TOUTEN(c))
+    charClass = touten;
+  else if(IS_JA_FWLATAIN(c))
+    charClass = fwlatain;
+
+  return charClass;
+}
+
+static bool isJapanese(const char* word)
+{
+  nsString text = NS_ConvertUTF8toUTF16(word);
+  char16_t* p = (char16_t*)text.get();
+  char16_t c;
+
+  // it is japanese chunk if it contains any hiragana or katakana.
+  while((c = *p++))
+    if( IS_JAPANESE_SPECIFIC(c))
+      return true;
+
+  return false;
+}
+
+static bool isFWNumeral(const char16_t* p1, const char16_t* p2)
+{
+  for(;p1<p2;p1++)
+    if(!IS_JA_FWNUMERAL(*p1))
+      return false;
+
+  return true;
+}
+
+// The japanese tokenizer was added as part of Bug #277354
+void Tokenizer::tokenize_japanese_word(char* chunk)
+{
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("entering tokenize_japanese_word(%s)", chunk));
+
+  nsString srcStr = NS_ConvertUTF8toUTF16(chunk);
+  const char16_t* p1 = srcStr.get();
+  const char16_t* p2 = p1;
+  if(!*p2) return;
+
+  char_class cc = getCharClass(*p2);
+  while(*(++p2))
+  {
+    if(cc == getCharClass(*p2))
+      continue;
+
+    nsCString token = NS_ConvertUTF16toUTF8(p1, p2-p1);
+    if( (!isDecimalNumber(token.get())) && (!isFWNumeral(p1, p2)))
+    {
+      nsCString tmpStr;
+      tmpStr.AppendLiteral("JA:");
+      tmpStr.Append(token);
+      add(tmpStr.get());
+    }
+
+    cc = getCharClass(*p2);
+    p1 = p2;
+  }
+}
+
+nsresult Tokenizer::stripHTML(const nsAString& inString, nsAString& outString)
+{
+  uint32_t flags = nsIDocumentEncoder::OutputLFLineBreak
+                 | nsIDocumentEncoder::OutputNoScriptContent
+                 | nsIDocumentEncoder::OutputNoFramesContent
+                 | nsIDocumentEncoder::OutputBodyOnly;
+  nsCOMPtr<nsIParserUtils> utils =
+    do_GetService(NS_PARSERUTILS_CONTRACTID);
+  return utils->ConvertToPlainText(inString, flags, 80, outString);
+}
+
+void Tokenizer::tokenize(const char* aText)
+{
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("tokenize: %s", aText));
+
+  // strip out HTML tags before we begin processing
+  // uggh but first we have to blow up our string into UCS2
+  // since that's what the document encoder wants. UTF8/UCS2, I wish we all
+  // spoke the same language here..
+  nsString text = NS_ConvertUTF8toUTF16(aText);
+  nsString strippedUCS2;
+
+  // RSS feeds store their summary information as an iframe. But due to
+  // bug 365953, we can't see those in the plaintext serializer. As a
+  // workaround, allow an option to replace iframe with div in the message
+  // text. We disable by default, since most people won't be applying bayes
+  // to RSS
+
+  if (mIframeToDiv)
+  {
+    MsgReplaceSubstring(text, NS_LITERAL_STRING("<iframe"),
+                        NS_LITERAL_STRING("<div"));
+    MsgReplaceSubstring(text, NS_LITERAL_STRING("/iframe>"),
+                        NS_LITERAL_STRING("/div>"));
+  }
+
+  stripHTML(text, strippedUCS2);
+
+  // convert 0x3000(full width space) into 0x0020
+  char16_t * substr_start = strippedUCS2.BeginWriting();
+  char16_t * substr_end = strippedUCS2.EndWriting();
+  while (substr_start != substr_end) {
+    if (*substr_start == 0x3000)
+        *substr_start = 0x0020;
+    ++substr_start;
+  }
+
+  nsCString strippedStr = NS_ConvertUTF16toUTF8(strippedUCS2);
+  char * strippedText = strippedStr.BeginWriting();
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("tokenize stripped html: %s", strippedText));
+
+  char* word;
+  char* next = strippedText;
+  while ((word = NS_strtok(mBodyDelimiters.get(), &next)) != NULL) {
+    if (!*word) continue;
+    if (isDecimalNumber(word)) continue;
+    if (isASCII(word))
+        tokenize_ascii_word(word);
+    else if (isJapanese(word))
+        tokenize_japanese_word(word);
+    else {
+        nsresult rv;
+        // use I18N  scanner to break this word into meaningful semantic units.
+        if (!mScanner) {
+            mScanner = do_CreateInstance(NS_SEMANTICUNITSCANNER_CONTRACTID, &rv);
+            NS_ASSERTION(NS_SUCCEEDED(rv), "couldn't create semantic unit scanner!");
+            if (NS_FAILED(rv)) {
+                return;
+            }
+        }
+        if (mScanner) {
+            mScanner->Start("UTF-8");
+            // convert this word from UTF-8 into UCS2.
+            NS_ConvertUTF8toUTF16 uword(word);
+            ToLowerCase(uword);
+            const char16_t* utext = uword.get();
+            int32_t len = uword.Length(), pos = 0, begin, end;
+            bool gotUnit;
+            while (pos < len) {
+                rv = mScanner->Next(utext, len, pos, true, &begin, &end, &gotUnit);
+                if (NS_SUCCEEDED(rv) && gotUnit) {
+                    NS_ConvertUTF16toUTF8 utfUnit(utext + begin, end - begin);
+                    add(utfUnit.get());
+                    // advance to end of current unit.
+                    pos = end;
+                } else {
+                    break;
+                }
+            }
+        }
+    }
+  }
+}
+
+// helper function to escape \n, \t, etc from a CString
+void Tokenizer::UnescapeCString(nsCString& aCString)
+{
+  nsAutoCString result;
+
+  const char* readEnd = aCString.EndReading();
+  char* writeStart = result.BeginWriting();
+  char* writeIter = writeStart;
+
+  bool inEscape = false;
+  for (const char* readIter = aCString.BeginReading(); readIter != readEnd; readIter++)
+  {
+    if (!inEscape)
+    {
+      if (*readIter == '\\')
+        inEscape = true;
+      else
+        *(writeIter++) = *readIter;
+    }
+    else
+    {
+      inEscape = false;
+      switch (*readIter)
+      {
+        case '\\':
+          *(writeIter++) = '\\';
+          break;
+        case 't':
+          *(writeIter++) = '\t';
+          break;
+        case 'n':
+          *(writeIter++) = '\n';
+          break;
+        case 'v':
+          *(writeIter++) = '\v';
+          break;
+        case 'f':
+          *(writeIter++) = '\f';
+          break;
+        case 'r':
+          *(writeIter++) = '\r';
+          break;
+        default:
+          // all other escapes are ignored
+          break;
+      }
+    }
+  }
+  result.SetLength(writeIter - writeStart);
+  aCString.Assign(result);
+}
+
+Token* Tokenizer::copyTokens()
+{
+    uint32_t count = countTokens();
+    if (count > 0) {
+        Token* tokens = new Token[count];
+        if (tokens) {
+            Token* tp = tokens;
+            TokenEnumeration e(&mTokenTable);
+            while (e.hasMoreTokens())
+                *tp++ = *(static_cast<Token*>(e.nextToken()));
+        }
+        return tokens;
+    }
+    return NULL;
+}
+
+class TokenAnalyzer {
+public:
+    virtual ~TokenAnalyzer() {}
+
+    virtual void analyzeTokens(Tokenizer& tokenizer) = 0;
+    void setTokenListener(nsIStreamListener *aTokenListener)
+    {
+      mTokenListener = aTokenListener;
+    }
+
+    void setSource(const char *sourceURI) {mTokenSource = sourceURI;}
+
+    nsCOMPtr<nsIStreamListener> mTokenListener;
+    nsCString mTokenSource;
+
+};
+
+/**
+ * This class downloads the raw content of an email message, buffering until
+ * complete segments are seen, that is until a linefeed is seen, although
+ * any of the valid token separators would do. This could be a further
+ * refinement.
+ */
+class TokenStreamListener : public nsIStreamListener, nsIMsgHeaderSink {
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIREQUESTOBSERVER
+    NS_DECL_NSISTREAMLISTENER
+    NS_DECL_NSIMSGHEADERSINK
+
+    TokenStreamListener(TokenAnalyzer* analyzer);
+protected:
+    virtual ~TokenStreamListener();
+    TokenAnalyzer* mAnalyzer;
+    char* mBuffer;
+    uint32_t mBufferSize;
+    uint32_t mLeftOverCount;
+    Tokenizer mTokenizer;
+    bool mSetAttachmentFlag;
+};
+
+const uint32_t kBufferSize = 16384;
+
+TokenStreamListener::TokenStreamListener(TokenAnalyzer* analyzer)
+    :   mAnalyzer(analyzer),
+        mBuffer(NULL), mBufferSize(kBufferSize), mLeftOverCount(0),
+        mSetAttachmentFlag(false)
+{
+}
+
+TokenStreamListener::~TokenStreamListener()
+{
+    delete[] mBuffer;
+    delete mAnalyzer;
+}
+
+NS_IMPL_ISUPPORTS(TokenStreamListener, nsIRequestObserver, nsIStreamListener, nsIMsgHeaderSink)
+
+NS_IMETHODIMP TokenStreamListener::ProcessHeaders(nsIUTF8StringEnumerator *aHeaderNames, nsIUTF8StringEnumerator *aHeaderValues, bool dontCollectAddress)
+{
+    mTokenizer.tokenizeHeaders(aHeaderNames, aHeaderValues);
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::HandleAttachment(const char *contentType, const char *url, const char16_t *displayName, const char *uri, bool aIsExternalAttachment)
+{
+    mTokenizer.tokenizeAttachment(contentType, NS_ConvertUTF16toUTF8(displayName).get());
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::AddAttachmentField(const char *field, const char *value)
+{
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::OnEndAllAttachments()
+{
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::OnEndMsgDownload(nsIMsgMailNewsUrl *url)
+{
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP TokenStreamListener::OnMsgHasRemoteContent(nsIMsgDBHdr *aMsgHdr,
+                                                         nsIURI *aContentURI,
+                                                         bool aCanOverride)
+{
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::OnEndMsgHeaders(nsIMsgMailNewsUrl *url)
+{
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP TokenStreamListener::GetSecurityInfo(nsISupports * *aSecurityInfo)
+{
+    return NS_OK;
+}
+NS_IMETHODIMP TokenStreamListener::SetSecurityInfo(nsISupports * aSecurityInfo)
+{
+    return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::GetDummyMsgHeader(nsIMsgDBHdr **aMsgDBHdr)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP TokenStreamListener::ResetProperties()
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP TokenStreamListener::GetProperties(nsIWritablePropertyBag2 * *aProperties)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void onStartRequest (in nsIRequest aRequest, in nsISupports aContext); */
+NS_IMETHODIMP TokenStreamListener::OnStartRequest(nsIRequest *aRequest, nsISupports *aContext)
+{
+    mLeftOverCount = 0;
+    if (!mBuffer)
+    {
+        mBuffer = new char[mBufferSize];
+        NS_ENSURE_TRUE(mBuffer, NS_ERROR_OUT_OF_MEMORY);
+    }
+
+    // get the url for the channel and set our nsIMsgHeaderSink on it so we get notified
+    // about the headers and attachments
+
+    nsCOMPtr<nsIChannel> channel (do_QueryInterface(aRequest));
+    if (channel)
+    {
+        nsCOMPtr<nsIURI> uri;
+        channel->GetURI(getter_AddRefs(uri));
+        nsCOMPtr<nsIMsgMailNewsUrl> mailUrl = do_QueryInterface(uri);
+        if (mailUrl)
+            mailUrl->SetMsgHeaderSink(static_cast<nsIMsgHeaderSink*>(this));
+    }
+
+    return NS_OK;
+}
+
+/* void onDataAvailable (in nsIRequest aRequest, in nsISupports aContext, in nsIInputStream aInputStream, in unsigned long long aOffset, in unsigned long aCount); */
+NS_IMETHODIMP TokenStreamListener::OnDataAvailable(nsIRequest *aRequest, nsISupports *aContext, nsIInputStream *aInputStream, uint64_t aOffset, uint32_t aCount)
+{
+    nsresult rv = NS_OK;
+
+    while (aCount > 0) {
+        uint32_t readCount, totalCount = (aCount + mLeftOverCount);
+        if (totalCount >= mBufferSize) {
+            readCount = mBufferSize - mLeftOverCount - 1;
+        } else {
+            readCount = aCount;
+        }
+
+        // mBuffer is supposed to be allocated in onStartRequest. But something
+        // is causing that to not happen, so as a last-ditch attempt we'll
+        // do it here.
+        if (!mBuffer)
+        {
+          mBuffer = new char[mBufferSize];
+          NS_ENSURE_TRUE(mBuffer, NS_ERROR_OUT_OF_MEMORY);
+        }
+
+        char* buffer = mBuffer;
+        rv = aInputStream->Read(buffer + mLeftOverCount, readCount, &readCount);
+        if (NS_FAILED(rv))
+            break;
+
+        if (readCount == 0) {
+            rv = NS_ERROR_UNEXPECTED;
+            NS_WARNING("failed to tokenize");
+            break;
+        }
+
+        aCount -= readCount;
+
+        /* consume the tokens up to the last legal token delimiter in the buffer. */
+        totalCount = (readCount + mLeftOverCount);
+        buffer[totalCount] = '\0';
+        char* lastDelimiter = NULL;
+        char* scan = buffer + totalCount;
+        while (scan > buffer) {
+            if (strchr(mTokenizer.mBodyDelimiters.get(), *--scan)) {
+                lastDelimiter = scan;
+                break;
+            }
+        }
+
+        if (lastDelimiter) {
+            *lastDelimiter = '\0';
+            mTokenizer.tokenize(buffer);
+
+            uint32_t consumedCount = 1 + (lastDelimiter - buffer);
+            mLeftOverCount = totalCount - consumedCount;
+            if (mLeftOverCount)
+                memmove(buffer, buffer + consumedCount, mLeftOverCount);
+        } else {
+            /* didn't find a delimiter, keep the whole buffer around. */
+            mLeftOverCount = totalCount;
+            if (totalCount >= (mBufferSize / 2)) {
+                uint32_t newBufferSize = mBufferSize * 2;
+                char* newBuffer = new char[newBufferSize];
+                NS_ENSURE_TRUE(newBuffer, NS_ERROR_OUT_OF_MEMORY);
+                memcpy(newBuffer, mBuffer, mLeftOverCount);
+                delete[] mBuffer;
+                mBuffer = newBuffer;
+                mBufferSize = newBufferSize;
+            }
+        }
+    }
+
+    return rv;
+}
+
+/* void onStopRequest (in nsIRequest aRequest, in nsISupports aContext, in nsresult aStatusCode); */
+NS_IMETHODIMP TokenStreamListener::OnStopRequest(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatusCode)
+{
+    if (mLeftOverCount) {
+        /* assume final buffer is complete. */
+        mBuffer[mLeftOverCount] = '\0';
+        mTokenizer.tokenize(mBuffer);
+    }
+
+    /* finally, analyze the tokenized message. */
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("analyze the tokenized message"));
+    if (mAnalyzer)
+        mAnalyzer->analyzeTokens(mTokenizer);
+
+    return NS_OK;
+}
+
+/* Implementation file */
+
+NS_IMPL_ISUPPORTS(nsBayesianFilter, nsIMsgFilterPlugin,
+                   nsIJunkMailPlugin, nsIMsgCorpus, nsISupportsWeakReference,
+                   nsIObserver)
+
+nsBayesianFilter::nsBayesianFilter()
+    :   mTrainingDataDirty(false)
+{
+    if (!BayesianFilterLogModule)
+      BayesianFilterLogModule = PR_NewLogModule("BayesianFilter");
+
+    int32_t junkThreshold = 0;
+    nsresult rv;
+    nsCOMPtr<nsIPrefBranch> pPrefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+    if (pPrefBranch)
+      pPrefBranch->GetIntPref("mail.adaptivefilters.junk_threshold", &junkThreshold);
+
+    mJunkProbabilityThreshold = (static_cast<double>(junkThreshold)) / 100.0;
+    if (mJunkProbabilityThreshold == 0 || mJunkProbabilityThreshold >= 1)
+      mJunkProbabilityThreshold = kDefaultJunkThreshold;
+
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Warning, ("junk probability threshold: %f", mJunkProbabilityThreshold));
+
+    mCorpus.readTrainingData();
+
+    // get parameters for training data flushing, from the prefs
+
+    nsCOMPtr<nsIPrefBranch> prefBranch;
+
+    nsCOMPtr<nsIPrefService> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
+    NS_ASSERTION(NS_SUCCEEDED(rv),"failed accessing preferences service");
+    rv = prefs->GetBranch(nullptr, getter_AddRefs(prefBranch));
+    NS_ASSERTION(NS_SUCCEEDED(rv),"failed getting preferences branch");
+
+    rv = prefBranch->GetIntPref("mailnews.bayesian_spam_filter.flush.minimum_interval",&mMinFlushInterval);
+    // it is not a good idea to allow a minimum interval of under 1 second
+    if (NS_FAILED(rv) || (mMinFlushInterval <= 1000) )
+        mMinFlushInterval = DEFAULT_MIN_INTERVAL_BETWEEN_WRITES;
+
+    rv = prefBranch->GetIntPref("mailnews.bayesian_spam_filter.junk_maxtokens", &mMaximumTokenCount);
+    if (NS_FAILED(rv))
+      mMaximumTokenCount = 0; // which means do not limit token counts
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Warning, ("maximum junk tokens: %d", mMaximumTokenCount));
+
+    mTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
+    NS_ASSERTION(NS_SUCCEEDED(rv), "unable to create a timer; training data will only be written on exit");
+
+    // the timer is not used on object construction, since for
+    // the time being there are no dirying messages
+
+    // give a default capacity to the memory structure used to store
+    // per-message/per-trait token data
+    mAnalysisStore.SetCapacity(kAnalysisStoreCapacity);
+
+    // dummy 0th element. Index 0 means "end of list" so we need to
+    // start from 1
+    AnalysisPerToken analysisPT(0, 0.0, 0.0);
+    mAnalysisStore.AppendElement(analysisPT);
+    mNextAnalysisIndex = 1;
+}
+
+nsresult nsBayesianFilter::Init()
+{
+  nsCOMPtr<nsIObserverService> observerService =
+    mozilla::services::GetObserverService();
+  if (observerService)
+    observerService->AddObserver(this, "profile-before-change", true);
+  return NS_OK;
+}
+
+void
+nsBayesianFilter::TimerCallback(nsITimer* aTimer, void* aClosure)
+{
+    // we will flush the training data to disk after enough time has passed
+    // since the first time a message has been classified after the last flush
+
+    nsBayesianFilter *filter = static_cast<nsBayesianFilter *>(aClosure);
+    filter->mCorpus.writeTrainingData(filter->mMaximumTokenCount);
+    filter->mTrainingDataDirty = false;
+}
+
+nsBayesianFilter::~nsBayesianFilter()
+{
+    if (mTimer)
+    {
+        mTimer->Cancel();
+        mTimer = nullptr;
+    }
+    // call shutdown when we are going away in case we need
+    // to flush the training set to disk
+    Shutdown();
+}
+
+// this object is used for one call to classifyMessage or classifyMessages().
+// So if we're classifying multiple messages, this object will be used for each message.
+// It's going to hold a reference to itself, basically, to stay in memory.
+class MessageClassifier : public TokenAnalyzer {
+public:
+    // full classifier with arbitrary traits
+    MessageClassifier(nsBayesianFilter* aFilter,
+                      nsIJunkMailClassificationListener* aJunkListener,
+                      nsIMsgTraitClassificationListener* aTraitListener,
+                      nsIMsgTraitDetailListener* aDetailListener,
+                      nsTArray<uint32_t>& aProTraits,
+                      nsTArray<uint32_t>& aAntiTraits,
+                      nsIMsgWindow *aMsgWindow,
+                      uint32_t aNumMessagesToClassify,
+                      const char **aMessageURIs)
+    :   mFilter(aFilter),
+        mJunkMailPlugin(aFilter),
+        mJunkListener(aJunkListener),
+        mTraitListener(aTraitListener),
+        mDetailListener(aDetailListener),
+        mProTraits(aProTraits),
+        mAntiTraits(aAntiTraits),
+        mMsgWindow(aMsgWindow)
+    {
+      mCurMessageToClassify = 0;
+      mNumMessagesToClassify = aNumMessagesToClassify;
+      mMessageURIs = (char **) moz_xmalloc(sizeof(char *) * aNumMessagesToClassify);
+      for (uint32_t i = 0; i < aNumMessagesToClassify; i++)
+        mMessageURIs[i] = PL_strdup(aMessageURIs[i]);
+
+    }
+
+    // junk-only classifier
+    MessageClassifier(nsBayesianFilter* aFilter,
+                      nsIJunkMailClassificationListener* aJunkListener,
+                      nsIMsgWindow *aMsgWindow,
+                      uint32_t aNumMessagesToClassify,
+                      const char **aMessageURIs)
+    :   mFilter(aFilter),
+        mJunkMailPlugin(aFilter),
+        mJunkListener(aJunkListener),
+        mTraitListener(nullptr),
+        mDetailListener(nullptr),
+        mMsgWindow(aMsgWindow)
+    {
+      mCurMessageToClassify = 0;
+      mNumMessagesToClassify = aNumMessagesToClassify;
+      mMessageURIs = (char **) moz_xmalloc(sizeof(char *) * aNumMessagesToClassify);
+      for (uint32_t i = 0; i < aNumMessagesToClassify; i++)
+        mMessageURIs[i] = PL_strdup(aMessageURIs[i]);
+      mProTraits.AppendElement(kJunkTrait);
+      mAntiTraits.AppendElement(kGoodTrait);
+
+    }
+
+    virtual ~MessageClassifier()
+    {
+       if (mMessageURIs)
+       {
+         NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mNumMessagesToClassify, mMessageURIs);
+       }
+    }
+    virtual void analyzeTokens(Tokenizer& tokenizer)
+    {
+        mFilter->classifyMessage(tokenizer,
+                                 mTokenSource.get(),
+                                 mProTraits,
+                                 mAntiTraits,
+                                 mJunkListener,
+                                 mTraitListener,
+                                 mDetailListener);
+        tokenizer.clearTokens();
+        classifyNextMessage();
+    }
+
+    virtual void classifyNextMessage()
+    {
+
+      if (++mCurMessageToClassify < mNumMessagesToClassify && mMessageURIs[mCurMessageToClassify]) {
+        MOZ_LOG(BayesianFilterLogModule, LogLevel::Warning, ("classifyNextMessage(%s)", mMessageURIs[mCurMessageToClassify]));
+        mFilter->tokenizeMessage(mMessageURIs[mCurMessageToClassify], mMsgWindow, this);
+      }
+      else
+      {
+        // call all listeners with null parameters to signify end of batch
+        if (mJunkListener)
+          mJunkListener->OnMessageClassified(nullptr, nsIJunkMailPlugin::UNCLASSIFIED, 0);
+        if (mTraitListener)
+          mTraitListener->OnMessageTraitsClassified(nullptr, 0, nullptr, nullptr);
+        mTokenListener = nullptr; // this breaks the circular ref that keeps this object alive
+                                 // so we will be destroyed as a result.
+      }
+    }
+
+private:
+    nsBayesianFilter* mFilter;
+    nsCOMPtr<nsIJunkMailPlugin> mJunkMailPlugin;
+    nsCOMPtr<nsIJunkMailClassificationListener> mJunkListener;
+    nsCOMPtr<nsIMsgTraitClassificationListener> mTraitListener;
+    nsCOMPtr<nsIMsgTraitDetailListener> mDetailListener;
+    nsTArray<uint32_t> mProTraits;
+    nsTArray<uint32_t> mAntiTraits;
+    nsCOMPtr<nsIMsgWindow> mMsgWindow;
+    int32_t mNumMessagesToClassify;
+    int32_t mCurMessageToClassify; // 0-based index
+    char **mMessageURIs;
+};
+
+nsresult nsBayesianFilter::tokenizeMessage(const char* aMessageURI, nsIMsgWindow *aMsgWindow, TokenAnalyzer* aAnalyzer)
+{
+    NS_ENSURE_ARG_POINTER(aMessageURI);
+
+    nsCOMPtr <nsIMsgMessageService> msgService;
+    nsresult rv = GetMessageServiceFromURI(nsDependentCString(aMessageURI), getter_AddRefs(msgService));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    aAnalyzer->setSource(aMessageURI);
+    nsCOMPtr<nsIURI> dummyNull;
+    return msgService->StreamMessage(aMessageURI, aAnalyzer->mTokenListener,
+                                     aMsgWindow, nullptr, true /* convert data */,
+                                     NS_LITERAL_CSTRING("filter"), false, getter_AddRefs(dummyNull));
+}
+
+// a TraitAnalysis is the per-token representation of the statistical
+// calculations, basically created to group information that is then
+// sorted by mDistance
+struct TraitAnalysis
+{
+  uint32_t mTokenIndex;
+  double mDistance;
+  double mProbability;
+};
+
+// comparator required to sort an nsTArray
+class compareTraitAnalysis
+{
+public:
+  bool Equals(const TraitAnalysis& a, const TraitAnalysis& b) const
+  {
+    return a.mDistance == b.mDistance;
+  }
+  bool LessThan(const TraitAnalysis& a, const TraitAnalysis& b) const
+  {
+    return a.mDistance < b.mDistance;
+  }
+};
+
+inline double dmax(double x, double y) { return (x > y ? x : y); }
+inline double dmin(double x, double y) { return (x < y ? x : y); }
+
+// Chi square functions are implemented by an incomplete gamma function.
+// Note that chi2P's callers multiply the arguments by 2 but chi2P
+// divides them by 2 again. Inlining chi2P gives the compiler a
+// chance to notice this.
+
+// Both chi2P and nsIncompleteGammaP set *error negative on domain
+// errors and nsIncompleteGammaP sets it posivive on internal errors.
+// This may be useful but the chi2P callers treat any error as fatal.
+
+// Note that converting unsigned ints to floating point can be slow on
+// some platforms (like Intel) so use signed quantities for the numeric
+// routines.
+static inline double chi2P (double chi2, double nu, int32_t *error)
+{
+    // domain checks; set error and return a dummy value
+    if (chi2 < 0.0 || nu <= 0.0)
+    {
+        *error = -1;
+        return 0.0;
+    }
+    // reversing the arguments is intentional
+    return nsIncompleteGammaP (nu/2.0, chi2/2.0, error);
+}
+
+void nsBayesianFilter::classifyMessage(
+  Tokenizer& tokenizer,
+  const char* messageURI,
+  nsTArray<uint32_t>& aProTraits,
+  nsTArray<uint32_t>& aAntiTraits,
+  nsIJunkMailClassificationListener* listener,
+  nsIMsgTraitClassificationListener* aTraitListener,
+  nsIMsgTraitDetailListener* aDetailListener)
+{
+    Token* tokens = tokenizer.copyTokens();
+    uint32_t tokenCount;
+    if (!tokens)
+    {
+      // This can happen with problems with UTF conversion
+      NS_ERROR("Trying to classify a null or invalid message");
+      tokenCount = 0;
+      // don't return so that we still call the listeners
+    }
+    else
+    {
+      tokenCount = tokenizer.countTokens();
+    }
+
+    if (aProTraits.Length() != aAntiTraits.Length())
+    {
+      NS_ERROR("Each Pro trait needs a matching Anti trait");
+      return;
+    }
+
+    /* this part is similar to the Graham algorithm with some adjustments. */
+    uint32_t traitCount = aProTraits.Length();
+
+    // pro message counts per trait index
+    AutoTArray<uint32_t, kTraitAutoCapacity> numProMessages;
+    // anti message counts per trait index
+    AutoTArray<uint32_t, kTraitAutoCapacity> numAntiMessages;
+    // array of pro aliases per trait index
+    AutoTArray<uint32_t*, kTraitAutoCapacity > proAliasArrays;
+    // number of pro aliases per trait index
+    AutoTArray<uint32_t, kTraitAutoCapacity > proAliasesLengths;    
+    // array of anti aliases per trait index
+    AutoTArray<uint32_t*, kTraitAutoCapacity> antiAliasArrays;
+    // number of anti aliases per trait index
+    AutoTArray<uint32_t, kTraitAutoCapacity > antiAliasesLengths;    
+    // construct the outgoing listener arrays
+    AutoTArray<uint32_t, kTraitAutoCapacity> traits;
+    AutoTArray<uint32_t, kTraitAutoCapacity> percents;
+    if (traitCount > kTraitAutoCapacity)
+    {
+      traits.SetCapacity(traitCount);
+      percents.SetCapacity(traitCount);
+      numProMessages.SetCapacity(traitCount);
+      numAntiMessages.SetCapacity(traitCount);
+      proAliasesLengths.SetCapacity(traitCount);
+      antiAliasesLengths.SetCapacity(traitCount);
+      proAliasArrays.SetCapacity(traitCount);
+      antiAliasArrays.SetCapacity(traitCount);
+    }
+
+    nsresult rv;
+    nsCOMPtr<nsIMsgTraitService> traitService(do_GetService("@mozilla.org/msg-trait-service;1", &rv));
+    if (NS_FAILED(rv))
+    {
+      NS_ERROR("Failed to get trait service");
+      MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("Failed to get trait service"));
+    }
+
+    // get aliases and message counts for the pro and anti traits
+    for (uint32_t traitIndex = 0; traitIndex < traitCount; traitIndex++)
+    {
+      nsresult rv;
+
+      // pro trait
+      uint32_t proAliasesLength = 0;
+      uint32_t* proAliases = nullptr;
+      uint32_t proTrait = aProTraits[traitIndex];
+      if (traitService)
+      {
+        rv = traitService->GetAliases(proTrait, &proAliasesLength, &proAliases);
+        if (NS_FAILED(rv))
+        {
+          NS_ERROR("trait service failed to get aliases");
+          MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("trait service failed to get aliases"));
+        }
+      }
+      proAliasesLengths.AppendElement(proAliasesLength);
+      proAliasArrays.AppendElement(proAliases);
+      uint32_t proMessageCount = mCorpus.getMessageCount(proTrait);
+      for (uint32_t aliasIndex = 0; aliasIndex < proAliasesLength; aliasIndex++)
+        proMessageCount += mCorpus.getMessageCount(proAliases[aliasIndex]);
+      numProMessages.AppendElement(proMessageCount);
+
+      // anti trait
+      uint32_t antiAliasesLength = 0;
+      uint32_t* antiAliases = nullptr;
+      uint32_t antiTrait = aAntiTraits[traitIndex];
+      if (traitService)
+      {
+        rv = traitService->GetAliases(antiTrait, &antiAliasesLength, &antiAliases);
+        if (NS_FAILED(rv))
+        {
+          NS_ERROR("trait service failed to get aliases");
+          MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("trait service failed to get aliases"));
+        }
+      }
+      antiAliasesLengths.AppendElement(antiAliasesLength);
+      antiAliasArrays.AppendElement(antiAliases);
+      uint32_t antiMessageCount = mCorpus.getMessageCount(antiTrait);
+      for (uint32_t aliasIndex = 0; aliasIndex < antiAliasesLength; aliasIndex++)
+        antiMessageCount += mCorpus.getMessageCount(antiAliases[aliasIndex]);
+      numAntiMessages.AppendElement(antiMessageCount);
+    }
+
+    for (uint32_t i = 0; i < tokenCount; ++i)
+    {
+      Token& token = tokens[i];
+      CorpusToken* t = mCorpus.get(token.mWord);
+      if (!t)
+        continue;
+      for (uint32_t traitIndex = 0; traitIndex < traitCount; traitIndex++)
+      {
+        uint32_t iProCount = mCorpus.getTraitCount(t, aProTraits[traitIndex]);
+        // add in any counts for aliases to proTrait
+        for (uint32_t aliasIndex = 0; aliasIndex < proAliasesLengths[traitIndex]; aliasIndex++)
+          iProCount += mCorpus.getTraitCount(t, proAliasArrays[traitIndex][aliasIndex]);
+        double proCount = static_cast<double>(iProCount);
+
+        uint32_t iAntiCount = mCorpus.getTraitCount(t, aAntiTraits[traitIndex]);
+        // add in any counts for aliases to antiTrait
+        for (uint32_t aliasIndex = 0; aliasIndex < antiAliasesLengths[traitIndex]; aliasIndex++)
+          iAntiCount += mCorpus.getTraitCount(t, antiAliasArrays[traitIndex][aliasIndex]);
+        double antiCount = static_cast<double>(iAntiCount);
+
+        double prob, denom;
+        // Prevent a divide by zero error by setting defaults for prob
+
+        // If there are no matching tokens at all, ignore.
+        if (antiCount == 0.0 && proCount == 0.0)
+          continue;
+        // if only anti match, set probability to 0%
+        if (proCount == 0.0)
+          prob = 0.0;
+        // if only pro match, set probability to 100%
+        else if (antiCount == 0.0)
+          prob = 1.0;
+        // not really needed, but just to be sure check the denom as well
+        else if ((denom = proCount * numAntiMessages[traitIndex] +
+                          antiCount * numProMessages[traitIndex]) == 0.0)
+          continue;
+        else
+          prob = (proCount * numAntiMessages[traitIndex]) / denom;
+
+        double n = proCount + antiCount;
+        prob =  (0.225 + n * prob) / (.45 + n);
+        double distance = std::abs(prob - 0.5);
+        if (distance >= .1)
+        {
+          mozilla::DebugOnly<nsresult> rv = setAnalysis(token, traitIndex, distance, prob);
+          NS_ASSERTION(NS_SUCCEEDED(rv), "Problem in setAnalysis");
+        }
+      }
+    }
+
+    for (uint32_t traitIndex = 0; traitIndex < traitCount; traitIndex++)
+    {
+      AutoTArray<TraitAnalysis, 1024> traitAnalyses;
+      // copy valid tokens into an array to sort
+      for (uint32_t tokenIndex = 0; tokenIndex < tokenCount; tokenIndex++)
+      {
+        uint32_t storeIndex = getAnalysisIndex(tokens[tokenIndex], traitIndex);
+        if (storeIndex)
+        {
+          TraitAnalysis ta =
+            {tokenIndex,
+             mAnalysisStore[storeIndex].mDistance,
+             mAnalysisStore[storeIndex].mProbability};
+          traitAnalyses.AppendElement(ta);
+        }
+      }
+
+      // sort the array by the distances
+      traitAnalyses.Sort(compareTraitAnalysis());
+      uint32_t count = traitAnalyses.Length();
+      uint32_t first, last = count;
+      const uint32_t kMaxTokens = 150;
+      first = ( count > kMaxTokens) ? count - kMaxTokens : 0;
+
+      // Setup the arrays to save details if needed
+      nsTArray<double> sArray;
+      nsTArray<double> hArray;
+      uint32_t usedTokenCount = ( count > kMaxTokens) ? kMaxTokens : count;
+      if (aDetailListener)
+      {
+        sArray.SetCapacity(usedTokenCount);
+        hArray.SetCapacity(usedTokenCount);
+      }
+
+      double H = 1.0, S = 1.0;
+      int32_t Hexp = 0, Sexp = 0;
+      uint32_t goodclues=0;
+      int e;
+
+      // index from end to analyze most significant first
+      for (uint32_t ip1 = last; ip1 != first; --ip1)
+      {
+        TraitAnalysis& ta = traitAnalyses[ip1 - 1];
+        if (ta.mDistance > 0.0)
+        {
+          goodclues++;
+          double value = ta.mProbability;
+          S *= (1.0 - value);
+          H *= value;
+          if ( S < 1e-200 )
+          {
+            S = frexp(S, &e);
+            Sexp += e;
+          }
+          if ( H < 1e-200 )
+          {
+            H = frexp(H, &e);
+            Hexp += e;
+          }
+          MOZ_LOG(BayesianFilterLogModule, LogLevel::Warning,
+                 ("token probability (%s) is %f",
+                  tokens[ta.mTokenIndex].mWord, ta.mProbability));
+        }
+        if (aDetailListener)
+        {
+          sArray.AppendElement(log(S) + Sexp * M_LN2);
+          hArray.AppendElement(log(H) + Hexp * M_LN2);
+        }
+      }
+
+      S = log(S) + Sexp * M_LN2;
+      H = log(H) + Hexp * M_LN2;
+
+      double prob;
+      if (goodclues > 0)
+      {
+          int32_t chi_error;
+          S = chi2P(-2.0 * S, 2.0 * goodclues, &chi_error);
+          if (!chi_error)
+              H = chi2P(-2.0 * H, 2.0 * goodclues, &chi_error);
+          // if any error toss the entire calculation
+          if (!chi_error)
+              prob = (S-H +1.0) / 2.0;
+          else
+              prob = 0.5;
+      }
+      else
+          prob = 0.5;
+
+      if (aDetailListener)
+      {
+        // Prepare output arrays
+        nsTArray<uint32_t> tokenPercents(usedTokenCount);
+        nsTArray<uint32_t> runningPercents(usedTokenCount);
+        nsTArray<char16_t*> tokenStrings(usedTokenCount);
+
+        double clueCount = 1.0;
+        for (uint32_t tokenIndex = 0; tokenIndex < usedTokenCount; tokenIndex++)
+        {
+          TraitAnalysis& ta = traitAnalyses[last - 1 - tokenIndex];
+          int32_t chi_error;
+          S = chi2P(-2.0 * sArray[tokenIndex], 2.0 * clueCount, &chi_error);
+          if (!chi_error)
+            H = chi2P(-2.0 * hArray[tokenIndex], 2.0 * clueCount, &chi_error);
+          clueCount += 1.0;
+          double runningProb;
+          if (!chi_error)
+            runningProb = (S - H + 1.0) / 2.0;
+          else
+            runningProb = 0.5;
+          runningPercents.AppendElement(static_cast<uint32_t>(runningProb *
+              100. + .5));
+          tokenPercents.AppendElement(static_cast<uint32_t>(ta.mProbability *
+              100. + .5));
+          tokenStrings.AppendElement(ToNewUnicode(NS_ConvertUTF8toUTF16(
+              tokens[ta.mTokenIndex].mWord)));
+        }
+
+        aDetailListener->OnMessageTraitDetails(messageURI, aProTraits[traitIndex],
+            usedTokenCount, (const char16_t**)tokenStrings.Elements(),
+            tokenPercents.Elements(), runningPercents.Elements());
+        for (uint32_t tokenIndex = 0; tokenIndex < usedTokenCount; tokenIndex++)
+          NS_Free(tokenStrings[tokenIndex]);
+      }
+
+      uint32_t proPercent = static_cast<uint32_t>(prob*100. + .5);
+
+      // directly classify junk to maintain backwards compatibility
+      if (aProTraits[traitIndex] == kJunkTrait)
+      {
+        bool isJunk = (prob >= mJunkProbabilityThreshold);
+        MOZ_LOG(BayesianFilterLogModule, LogLevel::Info,
+               ("%s is junk probability = (%f)  HAM SCORE:%f SPAM SCORE:%f",
+                messageURI, prob,H,S));
+
+        // the algorithm in "A Plan For Spam" assumes that you have a large good
+        // corpus and a large junk corpus.
+        // that won't be the case with users who first use the junk mail trait
+        // so, we do certain things to encourage them to train.
+        //
+        // if there are no good tokens, assume the message is junk
+        // this will "encourage" the user to train
+        // and if there are no bad tokens, assume the message is not junk
+        // this will also "encourage" the user to train
+        // see bug #194238
+
+        if (listener && !mCorpus.getMessageCount(kGoodTrait))
+          isJunk = true;
+        else if (listener && !mCorpus.getMessageCount(kJunkTrait))
+          isJunk = false;
+
+        if (listener)
+          listener->OnMessageClassified(messageURI, isJunk ?
+            nsMsgJunkStatus(nsIJunkMailPlugin::JUNK) :
+            nsMsgJunkStatus(nsIJunkMailPlugin::GOOD), proPercent);
+      }
+
+      if (aTraitListener)
+      {
+        traits.AppendElement(aProTraits[traitIndex]);
+        percents.AppendElement(proPercent);
+      }
+
+      // free aliases arrays returned from XPCOM
+      if (proAliasesLengths[traitIndex])
+        NS_Free(proAliasArrays[traitIndex]);
+      if (antiAliasesLengths[traitIndex])
+        NS_Free(antiAliasArrays[traitIndex]);
+    }
+
+    if (aTraitListener)
+      aTraitListener->OnMessageTraitsClassified(messageURI,
+          traits.Length(), traits.Elements(), percents.Elements());
+
+    delete[] tokens;
+    // reuse mAnalysisStore without clearing memory
+    mNextAnalysisIndex = 1;
+    // but shrink it back to the default size
+    if (mAnalysisStore.Length() > kAnalysisStoreCapacity)
+      mAnalysisStore.RemoveElementsAt(kAnalysisStoreCapacity,
+          mAnalysisStore.Length() - kAnalysisStoreCapacity);
+    mAnalysisStore.Compact();
+}
+
+void nsBayesianFilter::classifyMessage(
+  Tokenizer& tokens,
+  const char* messageURI,
+  nsIJunkMailClassificationListener* aJunkListener)
+{
+  AutoTArray<uint32_t, 1> proTraits;
+  AutoTArray<uint32_t, 1> antiTraits;
+  proTraits.AppendElement(kJunkTrait);
+  antiTraits.AppendElement(kGoodTrait);
+  classifyMessage(tokens, messageURI, proTraits, antiTraits,
+    aJunkListener, nullptr, nullptr);
+}
+
+NS_IMETHODIMP
+nsBayesianFilter::Observe(nsISupports *aSubject, const char *aTopic,
+                          const char16_t *someData)
+{
+  if (!strcmp(aTopic, "profile-before-change"))
+    Shutdown();
+  return NS_OK;
+}
+
+/* void shutdown (); */
+NS_IMETHODIMP nsBayesianFilter::Shutdown()
+{
+  if (mTrainingDataDirty)
+    mCorpus.writeTrainingData(mMaximumTokenCount);
+  mTrainingDataDirty = false;
+
+  return NS_OK;
+}
+
+/* readonly attribute boolean shouldDownloadAllHeaders; */
+NS_IMETHODIMP nsBayesianFilter::GetShouldDownloadAllHeaders(bool *aShouldDownloadAllHeaders)
+{
+    // bayesian filters work on the whole msg body currently.
+    *aShouldDownloadAllHeaders = false;
+    return NS_OK;
+}
+
+/* void classifyMessage (in string aMsgURL, in nsIJunkMailClassificationListener aListener); */
+NS_IMETHODIMP nsBayesianFilter::ClassifyMessage(const char *aMessageURL, nsIMsgWindow *aMsgWindow, nsIJunkMailClassificationListener *aListener)
+{
+    MessageClassifier* analyzer = new MessageClassifier(this, aListener, aMsgWindow, 1, &aMessageURL);
+    NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+    TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+    NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+    analyzer->setTokenListener(tokenListener);
+    return tokenizeMessage(aMessageURL, aMsgWindow, analyzer);
+}
+
+/* void classifyMessages (in unsigned long aCount, [array, size_is (aCount)] in string aMsgURLs, in nsIJunkMailClassificationListener aListener); */
+NS_IMETHODIMP nsBayesianFilter::ClassifyMessages(uint32_t aCount, const char **aMsgURLs, nsIMsgWindow *aMsgWindow, nsIJunkMailClassificationListener *aListener)
+{
+    NS_ENSURE_ARG_POINTER(aMsgURLs);
+
+    TokenAnalyzer* analyzer = new MessageClassifier(this, aListener, aMsgWindow, aCount, aMsgURLs);
+    NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+    TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+    NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+    analyzer->setTokenListener(tokenListener);
+    return tokenizeMessage(aMsgURLs[0], aMsgWindow, analyzer);
+}
+
+nsresult nsBayesianFilter::setAnalysis(Token& token, uint32_t aTraitIndex,
+  double aDistance, double aProbability)
+{
+  uint32_t nextLink = token.mAnalysisLink;
+  uint32_t lastLink = 0;
+  uint32_t linkCount = 0, maxLinks = 100;
+
+  // try to find an existing element. Limit the search to maxLinks
+  // as a precaution
+  for (linkCount = 0; nextLink && linkCount < maxLinks; linkCount++)
+  {
+    AnalysisPerToken &rAnalysis = mAnalysisStore[nextLink];
+    if (rAnalysis.mTraitIndex == aTraitIndex)
+    {
+      rAnalysis.mDistance = aDistance;
+      rAnalysis.mProbability = aProbability;
+      return NS_OK;
+    }
+    lastLink = nextLink;
+    nextLink = rAnalysis.mNextLink;
+  }
+  if (linkCount >= maxLinks)
+    return NS_ERROR_FAILURE;
+
+  // trait does not exist, so add it
+
+  AnalysisPerToken analysis(aTraitIndex, aDistance, aProbability);
+  if (mAnalysisStore.Length() == mNextAnalysisIndex)
+    mAnalysisStore.InsertElementAt(mNextAnalysisIndex, analysis);
+  else if (mAnalysisStore.Length() > mNextAnalysisIndex)
+    mAnalysisStore.ReplaceElementsAt(mNextAnalysisIndex, 1, analysis);
+  else // we can only insert at the end of the array
+    return NS_ERROR_FAILURE;
+
+  if (lastLink)
+    // the token had at least one link, so update the last link to point to
+    // the new item
+    mAnalysisStore[lastLink].mNextLink = mNextAnalysisIndex;
+  else
+    // need to update the token's first link
+    token.mAnalysisLink = mNextAnalysisIndex;
+  mNextAnalysisIndex++;
+  return NS_OK;
+}
+
+uint32_t nsBayesianFilter::getAnalysisIndex(Token& token, uint32_t aTraitIndex)
+{
+  uint32_t nextLink;
+  uint32_t linkCount = 0, maxLinks = 100;
+  for (nextLink = token.mAnalysisLink; nextLink && linkCount < maxLinks; linkCount++)
+  {
+    AnalysisPerToken &rAnalysis = mAnalysisStore[nextLink];
+    if (rAnalysis.mTraitIndex == aTraitIndex)
+      return nextLink;
+    nextLink = rAnalysis.mNextLink;
+  }
+  NS_ASSERTION(linkCount < maxLinks, "corrupt analysis store");
+
+  // Trait not found, indicate by zero
+  return 0;
+}
+
+NS_IMETHODIMP nsBayesianFilter::ClassifyTraitsInMessage(
+  const char *aMsgURI,
+  uint32_t aTraitCount,
+  uint32_t *aProTraits,
+  uint32_t *aAntiTraits,
+  nsIMsgTraitClassificationListener *aTraitListener,
+  nsIMsgWindow *aMsgWindow,
+  nsIJunkMailClassificationListener *aJunkListener)
+{
+  return ClassifyTraitsInMessages(1, &aMsgURI, aTraitCount, aProTraits,
+    aAntiTraits, aTraitListener, aMsgWindow, aJunkListener);
+}
+
+NS_IMETHODIMP nsBayesianFilter::ClassifyTraitsInMessages(
+  uint32_t aCount,
+  const char **aMsgURIs,
+  uint32_t aTraitCount,
+  uint32_t *aProTraits,
+  uint32_t *aAntiTraits,
+  nsIMsgTraitClassificationListener *aTraitListener,
+  nsIMsgWindow *aMsgWindow,
+  nsIJunkMailClassificationListener *aJunkListener)
+{
+  AutoTArray<uint32_t, kTraitAutoCapacity> proTraits;
+  AutoTArray<uint32_t, kTraitAutoCapacity> antiTraits;
+  if (aTraitCount > kTraitAutoCapacity)
+  {
+    proTraits.SetCapacity(aTraitCount);
+    antiTraits.SetCapacity(aTraitCount);
+  }
+  proTraits.AppendElements(aProTraits, aTraitCount);
+  antiTraits.AppendElements(aAntiTraits, aTraitCount);
+
+  MessageClassifier* analyzer = new MessageClassifier(this, aJunkListener,
+    aTraitListener, nullptr, proTraits, antiTraits, aMsgWindow, aCount, aMsgURIs);
+  NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+
+  TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+  NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+
+  analyzer->setTokenListener(tokenListener);
+  return tokenizeMessage(aMsgURIs[0], aMsgWindow, analyzer);
+}
+
+class MessageObserver : public TokenAnalyzer {
+public:
+  MessageObserver(nsBayesianFilter* filter,
+                  nsTArray<uint32_t>& aOldClassifications,
+                  nsTArray<uint32_t>& aNewClassifications,
+                  nsIJunkMailClassificationListener* aJunkListener,
+                  nsIMsgTraitClassificationListener* aTraitListener)
+      :   mFilter(filter), mJunkMailPlugin(filter), mJunkListener(aJunkListener),
+          mTraitListener(aTraitListener),
+          mOldClassifications(aOldClassifications),
+          mNewClassifications(aNewClassifications)
+  {
+  }
+
+  virtual void analyzeTokens(Tokenizer& tokenizer)
+  {
+    mFilter->observeMessage(tokenizer, mTokenSource.get(), mOldClassifications,
+                            mNewClassifications, mJunkListener, mTraitListener);
+    // release reference to listener, which will allow us to go away as well.
+    mTokenListener = nullptr;
+  }
+
+private:
+  nsBayesianFilter* mFilter;
+  nsCOMPtr<nsIJunkMailPlugin> mJunkMailPlugin;
+  nsCOMPtr<nsIJunkMailClassificationListener> mJunkListener;
+  nsCOMPtr<nsIMsgTraitClassificationListener> mTraitListener;
+  nsTArray<uint32_t> mOldClassifications;
+  nsTArray<uint32_t> mNewClassifications;
+};
+
+NS_IMETHODIMP nsBayesianFilter::SetMsgTraitClassification(
+    const char *aMsgURI,
+    uint32_t aOldCount,
+    uint32_t *aOldTraits,
+    uint32_t aNewCount,
+    uint32_t *aNewTraits,
+    nsIMsgTraitClassificationListener *aTraitListener,
+    nsIMsgWindow *aMsgWindow,
+    nsIJunkMailClassificationListener *aJunkListener)
+{
+  AutoTArray<uint32_t, kTraitAutoCapacity> oldTraits;
+  AutoTArray<uint32_t, kTraitAutoCapacity> newTraits;
+  if (aOldCount > kTraitAutoCapacity)
+    oldTraits.SetCapacity(aOldCount);
+  if (aNewCount > kTraitAutoCapacity)
+    newTraits.SetCapacity(aNewCount);
+  oldTraits.AppendElements(aOldTraits, aOldCount);
+  newTraits.AppendElements(aNewTraits, aNewCount);
+
+  MessageObserver* analyzer = new MessageObserver(this, oldTraits,
+    newTraits, aJunkListener, aTraitListener);
+  NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+
+  TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+  NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+
+  analyzer->setTokenListener(tokenListener);
+  return tokenizeMessage(aMsgURI, aMsgWindow, analyzer);
+}
+
+// set new message classifications for a message
+void nsBayesianFilter::observeMessage(
+    Tokenizer& tokenizer,
+    const char* messageURL,
+    nsTArray<uint32_t>& oldClassifications,
+    nsTArray<uint32_t>& newClassifications,
+    nsIJunkMailClassificationListener* aJunkListener,
+    nsIMsgTraitClassificationListener* aTraitListener)
+{
+
+    bool trainingDataWasDirty = mTrainingDataDirty;
+
+    // Uhoh...if the user is re-training then the message may already be classified and we are classifying it again with the same classification.
+    // the old code would have removed the tokens for this message then added them back. But this really hurts the message occurrence
+    // count for tokens if you just removed training.dat and are re-training. See Bug #237095 for more details.
+    // What can we do here? Well we can skip the token removal step if the classifications are the same and assume the user is
+    // just re-training. But this then allows users to re-classify the same message on the same training set over and over again
+    // leading to data skew. But that's all I can think to do right now to address this.....
+    uint32_t oldLength = oldClassifications.Length();
+    for (uint32_t index = 0; index < oldLength; index++)
+    {
+      uint32_t trait = oldClassifications.ElementAt(index);
+      // skip removing if trait is also in the new set
+      if (newClassifications.Contains(trait))
+        continue;
+      // remove the tokens from the token set it is currently in
+      uint32_t messageCount;
+      messageCount = mCorpus.getMessageCount(trait);
+      if (messageCount > 0)
+      {
+        mCorpus.setMessageCount(trait, messageCount - 1);
+        mCorpus.forgetTokens(tokenizer, trait, 1);
+        mTrainingDataDirty = true;
+      }
+    }
+
+    nsMsgJunkStatus newClassification = nsIJunkMailPlugin::UNCLASSIFIED;
+    uint32_t junkPercent = 0; // 0 here is no possibility of meeting the classification
+    uint32_t newLength = newClassifications.Length();
+    for (uint32_t index = 0; index < newLength; index++)
+    {
+      uint32_t trait = newClassifications.ElementAt(index);
+      mCorpus.setMessageCount(trait, mCorpus.getMessageCount(trait) + 1);
+      mCorpus.rememberTokens(tokenizer, trait, 1);
+      mTrainingDataDirty = true;
+
+      if (aJunkListener)
+      {
+        if (trait == kJunkTrait)
+        {
+          junkPercent = nsIJunkMailPlugin::IS_SPAM_SCORE;
+          newClassification = nsIJunkMailPlugin::JUNK;
+        }
+        else if (trait == kGoodTrait)
+        {
+          junkPercent = nsIJunkMailPlugin::IS_HAM_SCORE;
+          newClassification = nsIJunkMailPlugin::GOOD;
+        }
+      }
+    }
+
+    if (aJunkListener)
+      aJunkListener->OnMessageClassified(messageURL, newClassification, junkPercent);
+
+    if (aTraitListener)
+    {
+      // construct the outgoing listener arrays
+      AutoTArray<uint32_t, kTraitAutoCapacity> traits;
+      AutoTArray<uint32_t, kTraitAutoCapacity> percents;
+      uint32_t newLength = newClassifications.Length();
+      if (newLength > kTraitAutoCapacity)
+      {
+        traits.SetCapacity(newLength);
+        percents.SetCapacity(newLength);
+      }
+      traits.AppendElements(newClassifications);
+      for (uint32_t index = 0; index < newLength; index++)
+        percents.AppendElement(100); // This is 100 percent, or certainty
+      aTraitListener->OnMessageTraitsClassified(messageURL,
+          traits.Length(), traits.Elements(), percents.Elements());
+    }
+
+    if (mTrainingDataDirty && !trainingDataWasDirty && ( mTimer != nullptr ))
+    {
+        // if training data became dirty just now, schedule flush
+        // mMinFlushInterval msec from now
+        MOZ_LOG(
+            BayesianFilterLogModule, LogLevel::Debug,
+            ("starting training data flush timer %i msec", mMinFlushInterval));
+        mTimer->InitWithFuncCallback(nsBayesianFilter::TimerCallback, this, mMinFlushInterval, nsITimer::TYPE_ONE_SHOT);
+    }
+}
+
+NS_IMETHODIMP nsBayesianFilter::GetUserHasClassified(bool *aResult)
+{
+  *aResult = (  (mCorpus.getMessageCount(kGoodTrait) +
+                 mCorpus.getMessageCount(kJunkTrait)) &&
+                 mCorpus.countTokens());
+  return NS_OK;
+}
+
+// Set message classification (only allows junk and good)
+NS_IMETHODIMP nsBayesianFilter::SetMessageClassification(
+    const char *aMsgURL,
+    nsMsgJunkStatus aOldClassification,
+    nsMsgJunkStatus aNewClassification,
+    nsIMsgWindow *aMsgWindow,
+    nsIJunkMailClassificationListener *aListener)
+{
+  AutoTArray<uint32_t, 1> oldClassifications;
+  AutoTArray<uint32_t, 1> newClassifications;
+
+  // convert between classifications and trait
+  if (aOldClassification == nsIJunkMailPlugin::JUNK)
+    oldClassifications.AppendElement(kJunkTrait);
+  else if (aOldClassification == nsIJunkMailPlugin::GOOD)
+    oldClassifications.AppendElement(kGoodTrait);
+  if (aNewClassification == nsIJunkMailPlugin::JUNK)
+    newClassifications.AppendElement(kJunkTrait);
+  else if (aNewClassification == nsIJunkMailPlugin::GOOD)
+    newClassifications.AppendElement(kGoodTrait);
+
+  MessageObserver* analyzer = new MessageObserver(this, oldClassifications,
+    newClassifications, aListener, nullptr);
+  NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+
+  TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+  NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+
+  analyzer->setTokenListener(tokenListener);
+  return tokenizeMessage(aMsgURL, aMsgWindow, analyzer);
+}
+
+NS_IMETHODIMP nsBayesianFilter::ResetTrainingData()
+{
+  return mCorpus.resetTrainingData();
+}
+
+NS_IMETHODIMP nsBayesianFilter::DetailMessage(const char *aMsgURI,
+    uint32_t aProTrait, uint32_t aAntiTrait,
+    nsIMsgTraitDetailListener *aDetailListener, nsIMsgWindow *aMsgWindow)
+{
+  AutoTArray<uint32_t, 1> proTraits;
+  AutoTArray<uint32_t, 1> antiTraits;
+  proTraits.AppendElement(aProTrait);
+  antiTraits.AppendElement(aAntiTrait);
+
+  MessageClassifier* analyzer = new MessageClassifier(this, nullptr,
+    nullptr, aDetailListener, proTraits, antiTraits, aMsgWindow, 1, &aMsgURI);
+  NS_ENSURE_TRUE(analyzer, NS_ERROR_OUT_OF_MEMORY);
+
+  TokenStreamListener *tokenListener = new TokenStreamListener(analyzer);
+  NS_ENSURE_TRUE(tokenListener, NS_ERROR_OUT_OF_MEMORY);
+
+  analyzer->setTokenListener(tokenListener);
+  return tokenizeMessage(aMsgURI, aMsgWindow, analyzer);
+}
+
+// nsIMsgCorpus implementation
+
+NS_IMETHODIMP nsBayesianFilter::CorpusCounts(uint32_t aTrait,
+                                             uint32_t *aMessageCount,
+                                             uint32_t *aTokenCount)
+{
+  NS_ENSURE_ARG_POINTER(aTokenCount);
+  *aTokenCount = mCorpus.countTokens();
+  if (aTrait && aMessageCount)
+    *aMessageCount = mCorpus.getMessageCount(aTrait);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsBayesianFilter::ClearTrait(uint32_t aTrait)
+{
+    return mCorpus.ClearTrait(aTrait);
+}
+
+NS_IMETHODIMP
+nsBayesianFilter::UpdateData(nsIFile *aFile,
+                             bool aIsAdd,
+                             uint32_t aRemapCount,
+                             uint32_t *aFromTraits,
+                             uint32_t *aToTraits)
+{
+  return mCorpus.UpdateData(aFile, aIsAdd, aRemapCount, aFromTraits, aToTraits);
+}
+
+NS_IMETHODIMP
+nsBayesianFilter::GetTokenCount(const nsACString &aWord,
+                                uint32_t aTrait,
+                                uint32_t *aCount)
+{
+  NS_ENSURE_ARG_POINTER(aCount);
+  CorpusToken* t = mCorpus.get(PromiseFlatCString(aWord).get());
+  uint32_t count = mCorpus.getTraitCount(t, aTrait);
+  *aCount = count;
+  return NS_OK;
+}
+
+/* Corpus Store */
+
+/*
+    Format of the training file for version 1:
+    [0xFEEDFACE]
+    [number good messages][number bad messages]
+    [number good tokens]
+    [count][length of word]word
+    ...
+    [number bad tokens]
+    [count][length of word]word
+    ...
+
+     Format of the trait file for version 1:
+    [0xFCA93601]  (the 01 is the version)
+    for each trait to write
+      [id of trait to write] (0 means end of list)
+      [number of messages per trait]
+      for each token with non-zero count
+        [count]
+        [length of word]word
+*/
+
+CorpusStore::CorpusStore() :
+  TokenHash(sizeof(CorpusToken)),
+  mNextTraitIndex(1) // skip 0 since index=0 will mean end of linked list
+{
+  getTrainingFile(getter_AddRefs(mTrainingFile));
+  mTraitStore.SetCapacity(kTraitStoreCapacity);
+  TraitPerToken traitPT(0, 0);
+  mTraitStore.AppendElement(traitPT); // dummy 0th element
+}
+
+CorpusStore::~CorpusStore()
+{
+}
+
+inline int writeUInt32(FILE* stream, uint32_t value)
+{
+    value = PR_htonl(value);
+    return fwrite(&value, sizeof(uint32_t), 1, stream);
+}
+
+inline int readUInt32(FILE* stream, uint32_t* value)
+{
+    int n = fread(value, sizeof(uint32_t), 1, stream);
+    if (n == 1) {
+        *value = PR_ntohl(*value);
+    }
+    return n;
+}
+
+void CorpusStore::forgetTokens(Tokenizer& aTokenizer,
+                    uint32_t aTraitId, uint32_t aCount)
+{
+  // if we are forgetting the tokens for a message, should only
+  // subtract 1 from the occurrence count for that token in the training set
+  // because we assume we only bumped the training set count once per messages
+  // containing the token.
+  TokenEnumeration tokens = aTokenizer.getTokens();
+  while (tokens.hasMoreTokens())
+  {
+    CorpusToken* token = static_cast<CorpusToken*>(tokens.nextToken());
+    remove(token->mWord, aTraitId, aCount);
+  }
+}
+
+void CorpusStore::rememberTokens(Tokenizer& aTokenizer,
+                    uint32_t aTraitId, uint32_t aCount)
+{
+  TokenEnumeration tokens = aTokenizer.getTokens();
+  while (tokens.hasMoreTokens())
+  {
+    CorpusToken* token = static_cast<CorpusToken*>(tokens.nextToken());
+    if (!token)
+    {
+      NS_ERROR("null token");
+      continue;
+    }
+    add(token->mWord, aTraitId, aCount);
+  }
+}
+
+bool CorpusStore::writeTokens(FILE* stream, bool shrink, uint32_t aTraitId)
+{
+  uint32_t tokenCount = countTokens();
+  uint32_t newTokenCount = 0;
+
+  // calculate the tokens for this trait to write
+
+  TokenEnumeration tokens = getTokens();
+  for (uint32_t i = 0; i < tokenCount; ++i)
+  {
+    CorpusToken* token = static_cast<CorpusToken*>(tokens.nextToken());
+    uint32_t count = getTraitCount(token, aTraitId);
+    // Shrinking the token database is accomplished by dividing all token counts by 2.
+    // If shrinking, we'll ignore counts < 2, otherwise only ignore counts of < 1
+    if ((shrink && count > 1) || (!shrink && count))
+      newTokenCount++;
+  }
+
+  if (writeUInt32(stream, newTokenCount) != 1)
+    return false;
+
+  if (newTokenCount > 0)
+  {
+    TokenEnumeration tokens = getTokens();
+    for (uint32_t i = 0; i < tokenCount; ++i)
+    {
+      CorpusToken* token = static_cast<CorpusToken*>(tokens.nextToken());
+      uint32_t wordCount = getTraitCount(token, aTraitId);
+      if (shrink)
+        wordCount /= 2;
+      if (!wordCount)
+        continue; // Don't output zero count words
+      if (writeUInt32(stream, wordCount) != 1)
+        return false;
+      uint32_t tokenLength = strlen(token->mWord);
+      if (writeUInt32(stream, tokenLength) != 1)
+        return false;
+      if (fwrite(token->mWord, tokenLength, 1, stream) != 1)
+        return false;
+    }
+  }
+  return true;
+}
+
+bool CorpusStore::readTokens(FILE* stream, int64_t fileSize,
+                               uint32_t aTraitId, bool aIsAdd)
+{
+    uint32_t tokenCount;
+    if (readUInt32(stream, &tokenCount) != 1)
+        return false;
+
+    int64_t fpos = ftell(stream);
+    if (fpos < 0)
+        return false;
+
+    uint32_t bufferSize = 4096;
+    char* buffer = new char[bufferSize];
+    if (!buffer) return false;
+
+    for (uint32_t i = 0; i < tokenCount; ++i) {
+        uint32_t count;
+        if (readUInt32(stream, &count) != 1)
+            break;
+        uint32_t size;
+        if (readUInt32(stream, &size) != 1)
+            break;
+        fpos += 8;
+        if (fpos + size > fileSize) {
+            delete[] buffer;
+            return false;
+        }
+        if (size >= bufferSize) {
+            delete[] buffer;
+            while (size >= bufferSize) {
+                bufferSize *= 2;
+                if (bufferSize == 0)
+                    return false;
+            }
+            buffer = new char[bufferSize];
+            if (!buffer) return false;
+        }
+        if (fread(buffer, size, 1, stream) != 1)
+            break;
+        fpos += size;
+        buffer[size] = '\0';
+        if (aIsAdd)
+          add(buffer, aTraitId, count);
+        else
+          remove(buffer, aTraitId, count);
+    }
+
+    delete[] buffer;
+
+    return true;
+}
+
+nsresult CorpusStore::getTrainingFile(nsIFile ** aTrainingFile)
+{
+  // should we cache the profile manager's directory?
+  nsCOMPtr<nsIFile> profileDir;
+
+  nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(profileDir));
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = profileDir->Append(NS_LITERAL_STRING("training.dat"));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return profileDir->QueryInterface(NS_GET_IID(nsIFile), (void **) aTrainingFile);
+}
+
+nsresult CorpusStore::getTraitFile(nsIFile ** aTraitFile)
+{
+  // should we cache the profile manager's directory?
+  nsCOMPtr<nsIFile> profileDir;
+
+  nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(profileDir));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = profileDir->Append(NS_LITERAL_STRING("traits.dat"));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return profileDir->QueryInterface(NS_GET_IID(nsIFile), (void **) aTraitFile);
+}
+
+static const char kMagicCookie[] = { '\xFE', '\xED', '\xFA', '\xCE' };
+
+// random string used to identify trait file and version (last byte is version)
+static const char kTraitCookie[] = { '\xFC', '\xA9', '\x36', '\x01' };
+
+void CorpusStore::writeTrainingData(uint32_t aMaximumTokenCount)
+{
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug, ("writeTrainingData() entered"));
+  if (!mTrainingFile)
+    return;
+
+  /*
+   * For backwards compatibility, write the good and junk tokens to
+   * training.dat; additional traits are added to a different file
+   */
+
+  // open the file, and write out training data
+  FILE* stream;
+  nsresult rv = mTrainingFile->OpenANSIFileDesc("wb", &stream);
+  if (NS_FAILED(rv))
+    return;
+
+  // If the number of tokens exceeds our limit, set the shrink flag
+  bool shrink = false;
+  if ((aMaximumTokenCount > 0) && // if 0, do not limit tokens
+      (countTokens() > aMaximumTokenCount))
+  {
+    shrink = true;
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Warning, ("shrinking token data file"));
+  }
+
+  // We implement shrink by dividing counts by two
+  uint32_t shrinkFactor = shrink ? 2 : 1;
+
+  if (!((fwrite(kMagicCookie, sizeof(kMagicCookie), 1, stream) == 1) &&
+      (writeUInt32(stream, getMessageCount(kGoodTrait) / shrinkFactor)) &&
+      (writeUInt32(stream, getMessageCount(kJunkTrait) / shrinkFactor)) &&
+       writeTokens(stream, shrink, kGoodTrait) &&
+       writeTokens(stream, shrink, kJunkTrait)))
+  {
+    NS_WARNING("failed to write training data.");
+    fclose(stream);
+    // delete the training data file, since it is potentially corrupt.
+    mTrainingFile->Remove(false);
+  }
+  else
+  {
+    fclose(stream);
+  }
+
+  /*
+   * Write the remaining data to a second file traits.dat
+   */
+
+  if (!mTraitFile)
+  {
+    getTraitFile(getter_AddRefs(mTraitFile));
+    if (!mTraitFile)
+     return;
+  }
+
+  // open the file, and write out training data
+  rv = mTraitFile->OpenANSIFileDesc("wb", &stream);
+  if (NS_FAILED(rv))
+    return;
+
+  uint32_t numberOfTraits = mMessageCounts.Length();
+  bool error;
+  while (1) // break on error or done
+  {
+    if ((error = (fwrite(kTraitCookie, sizeof(kTraitCookie), 1, stream) != 1)))
+      break;
+
+    for (uint32_t index = 0; index < numberOfTraits; index++)
+    {
+      uint32_t trait = mMessageCountsId[index];
+      if (trait == 1 || trait == 2)
+        continue; // junk traits are stored in training.dat
+      if ((error = (writeUInt32(stream, trait) != 1)))
+        break;
+      if ((error = (writeUInt32(stream, mMessageCounts[index] / shrinkFactor) != 1)))
+        break;
+      if ((error = !writeTokens(stream, shrink, trait)))
+        break;
+    }
+    break;
+  }
+  // we add a 0 at the end to represent end of trait list
+  error = writeUInt32(stream, 0) != 1;
+
+  fclose(stream);
+  if (error)
+  {
+    NS_WARNING("failed to write trait data.");
+    // delete the trait data file, since it is probably corrupt.
+    mTraitFile->Remove(false);
+  }
+
+  if (shrink)
+  {
+    // We'll clear the tokens, and read them back in from the file.
+    // Yes this is slower than in place, but this is a rare event.
+
+    if (countTokens())
+    {
+      clearTokens();
+      for (uint32_t index = 0; index < numberOfTraits; index++)
+        mMessageCounts[index] = 0;
+    }
+
+  readTrainingData();
+  }
+}
+
+void CorpusStore::readTrainingData()
+{
+
+  /*
+   * To maintain backwards compatibility, good and junk traits
+   * are stored in a file "training.dat"
+   */
+  if (!mTrainingFile)
+    return;
+
+  bool exists;
+  nsresult rv = mTrainingFile->Exists(&exists);
+  if (NS_FAILED(rv) || !exists)
+    return;
+
+  FILE* stream;
+  rv = mTrainingFile->OpenANSIFileDesc("rb", &stream);
+  if (NS_FAILED(rv))
+    return;
+
+  int64_t fileSize;
+  rv = mTrainingFile->GetFileSize(&fileSize);
+  if (NS_FAILED(rv))
+    return;
+
+  // FIXME:  should make sure that the tokenizers are empty.
+  char cookie[4];
+  uint32_t goodMessageCount = 0, junkMessageCount = 0;
+  if (!((fread(cookie, sizeof(cookie), 1, stream) == 1) &&
+        (memcmp(cookie, kMagicCookie, sizeof(cookie)) == 0) &&
+        (readUInt32(stream, &goodMessageCount) == 1) &&
+        (readUInt32(stream, &junkMessageCount) == 1) &&
+         readTokens(stream, fileSize, kGoodTrait, true) &&
+         readTokens(stream, fileSize, kJunkTrait, true))) {
+      NS_WARNING("failed to read training data.");
+      MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("failed to read training data."));
+  }
+  setMessageCount(kGoodTrait, goodMessageCount);
+  setMessageCount(kJunkTrait, junkMessageCount);
+
+  fclose(stream);
+
+  /*
+   * Additional traits are stored in traits.dat
+   */
+
+  if (!mTraitFile)
+  {
+    getTraitFile(getter_AddRefs(mTraitFile));
+    if (!mTraitFile)
+     return;
+  }
+
+  rv = mTraitFile->Exists(&exists);
+  if (NS_FAILED(rv) || !exists)
+    return;
+
+  rv = UpdateData(mTraitFile, true, 0, nullptr, nullptr);
+
+  if (NS_FAILED(rv))
+  {
+    NS_WARNING("failed to read training data.");
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Error, ("failed to read training data."));
+  }
+  return;
+}
+
+nsresult CorpusStore::resetTrainingData()
+{
+  // clear out our in memory training tokens...
+  if (countTokens())
+    clearTokens();
+
+  uint32_t length = mMessageCounts.Length();
+  for (uint32_t index = 0 ; index < length; index++)
+    mMessageCounts[index] = 0;
+
+  if (mTrainingFile)
+    mTrainingFile->Remove(false);
+  if (mTraitFile)
+    mTraitFile->Remove(false);
+  return NS_OK;
+}
+
+inline CorpusToken* CorpusStore::get(const char* word)
+{
+  return static_cast<CorpusToken*>(TokenHash::get(word));
+}
+
+nsresult CorpusStore::updateTrait(CorpusToken* token, uint32_t aTraitId,
+                                  int32_t aCountChange)
+{
+  NS_ENSURE_ARG_POINTER(token);
+  uint32_t nextLink = token->mTraitLink;
+  uint32_t lastLink = 0;
+
+  uint32_t linkCount, maxLinks = 100; //sanity check
+  for (linkCount = 0; nextLink && linkCount < maxLinks; linkCount++)
+  {
+    TraitPerToken& traitPT = mTraitStore[nextLink];
+    if (traitPT.mId == aTraitId)
+    {
+      // be careful with signed versus unsigned issues here
+      if (static_cast<int32_t>(traitPT.mCount) + aCountChange > 0)
+        traitPT.mCount += aCountChange;
+      else
+        traitPT.mCount = 0;
+      // we could delete zero count traits here, but let's not. It's rare anyway.
+      return NS_OK;
+    }
+    lastLink = nextLink;
+    nextLink = traitPT.mNextLink;
+  }
+  if (linkCount >= maxLinks)
+    return NS_ERROR_FAILURE;
+
+  // trait does not exist, so add it
+
+  if (aCountChange > 0) // don't set a negative count
+  {
+    TraitPerToken traitPT(aTraitId, aCountChange);
+    if (mTraitStore.Length() == mNextTraitIndex)
+      mTraitStore.InsertElementAt(mNextTraitIndex, traitPT);
+    else if (mTraitStore.Length() > mNextTraitIndex)
+      mTraitStore.ReplaceElementsAt(mNextTraitIndex, 1, traitPT);
+    else
+      return NS_ERROR_FAILURE;
+    if (lastLink)
+      // the token had a parent, so update it
+      mTraitStore[lastLink].mNextLink = mNextTraitIndex;
+    else
+      // need to update the token's root link
+      token->mTraitLink = mNextTraitIndex;
+    mNextTraitIndex++;
+  }
+  return NS_OK;
+}
+
+uint32_t CorpusStore::getTraitCount(CorpusToken* token, uint32_t aTraitId)
+{
+  uint32_t nextLink;
+  if (!token || !(nextLink = token->mTraitLink))
+    return 0;
+
+  uint32_t linkCount, maxLinks = 100; //sanity check
+  for (linkCount = 0; nextLink && linkCount < maxLinks; linkCount++)
+  {
+    TraitPerToken& traitPT = mTraitStore[nextLink];
+    if (traitPT.mId == aTraitId)
+      return traitPT.mCount;
+    nextLink = traitPT.mNextLink;
+  }
+  NS_ASSERTION(linkCount < maxLinks, "Corrupt trait count store");
+
+  // trait not found (or error), so count is zero
+  return 0;
+}
+
+CorpusToken* CorpusStore::add(const char* word, uint32_t aTraitId, uint32_t aCount)
+{
+  CorpusToken* token = static_cast<CorpusToken*>(TokenHash::add(word));
+  if (token) {
+    MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug,
+           ("adding word to corpus store: %s (Trait=%d) (deltaCount=%d)",
+            word, aTraitId, aCount));
+    updateTrait(token, aTraitId, aCount);
+  }
+  return token;
+ }
+
+void CorpusStore::remove(const char* word, uint32_t aTraitId, uint32_t aCount)
+{
+  MOZ_LOG(BayesianFilterLogModule, LogLevel::Debug,
+         ("remove word: %s (TraitId=%d) (Count=%d)",
+         word, aTraitId, aCount));
+  CorpusToken* token = get(word);
+  if (token)
+    updateTrait(token, aTraitId, -static_cast<int32_t>(aCount));
+}
+
+uint32_t CorpusStore::getMessageCount(uint32_t aTraitId)
+{
+  size_t index = mMessageCountsId.IndexOf(aTraitId);
+  if (index == mMessageCountsId.NoIndex)
+    return 0;
+  return mMessageCounts.ElementAt(index);
+}
+
+void CorpusStore::setMessageCount(uint32_t aTraitId, uint32_t aCount)
+{
+  size_t index = mMessageCountsId.IndexOf(aTraitId);
+  if (index == mMessageCountsId.NoIndex)
+  {
+    mMessageCounts.AppendElement(aCount);
+    mMessageCountsId.AppendElement(aTraitId);
+  }
+  else
+  {
+    mMessageCounts[index] = aCount;
+  }
+}
+
+nsresult
+CorpusStore::UpdateData(nsIFile *aFile,
+                        bool aIsAdd,
+                        uint32_t aRemapCount,
+                        uint32_t *aFromTraits,
+                        uint32_t *aToTraits)
+{
+  NS_ENSURE_ARG_POINTER(aFile);
+  if (aRemapCount)
+  {
+    NS_ENSURE_ARG_POINTER(aFromTraits);
+    NS_ENSURE_ARG_POINTER(aToTraits);
+  }
+
+  int64_t fileSize;
+  nsresult rv = aFile->GetFileSize(&fileSize);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  FILE* stream;
+  rv = aFile->OpenANSIFileDesc("rb", &stream);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool error;
+  do // break on error or done
+  {
+    char cookie[4];
+    if ((error = (fread(cookie, sizeof(cookie), 1, stream) != 1)))
+      break;
+
+    if ((error = memcmp(cookie, kTraitCookie, sizeof(cookie))))
+      break;
+
+    uint32_t fileTrait;
+    while ( !(error = (readUInt32(stream, &fileTrait) != 1)) && fileTrait)
+    {
+      uint32_t count;
+      if ((error = (readUInt32(stream, &count) != 1)))
+        break;
+
+      uint32_t localTrait = fileTrait;
+      // remap the trait
+      for (uint32_t i = 0; i < aRemapCount; i++)
+      {
+        if (aFromTraits[i] == fileTrait)
+          localTrait = aToTraits[i];
+      }
+
+      uint32_t messageCount = getMessageCount(localTrait);
+      if (aIsAdd)
+        messageCount += count;
+      else if (count > messageCount)
+        messageCount = 0;
+      else
+        messageCount -= count;
+      setMessageCount(localTrait, messageCount);
+
+      if ((error = !readTokens(stream, fileSize, localTrait, aIsAdd)))
+        break;
+    }
+    break;
+  } while (0);
+
+  fclose(stream);
+
+  if (error)
+    return NS_ERROR_FAILURE;
+  return NS_OK;
+}
+
+nsresult CorpusStore::ClearTrait(uint32_t aTrait)
+{
+  // clear message counts
+  setMessageCount(aTrait, 0);
+
+  TokenEnumeration tokens = getTokens();
+  while (tokens.hasMoreTokens())
+  {
+    CorpusToken* token = static_cast<CorpusToken*>(tokens.nextToken());
+    int32_t wordCount = static_cast<int32_t>(getTraitCount(token, aTrait));
+    updateTrait(token, aTrait, -wordCount);
+  }
+  return NS_OK;
+}
diff --git a/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.h b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.h
new file mode 100644
index 000000000..32a9d26d0
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilter.h
@@ -0,0 +1,404 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsBayesianFilter_h__
+#define nsBayesianFilter_h__
+
+#include <stdio.h>
+#include "nsCOMPtr.h"
+#include "nsIMsgFilterPlugin.h"
+#include "nsISemanticUnitScanner.h"
+#include "PLDHashTable.h"
+#include "nsITimer.h"
+#include "nsTArray.h"
+#include "nsStringGlue.h"
+#include "nsWeakReference.h"
+#include "nsIObserver.h"
+
+// XXX can't simply byte align arenas, must at least 2-byte align.
+#define PL_ARENA_CONST_ALIGN_MASK 1
+#include "plarena.h"
+
+#define DEFAULT_MIN_INTERVAL_BETWEEN_WRITES             15*60*1000
+
+struct Token;
+class TokenEnumeration;
+class TokenAnalyzer;
+class nsIMsgWindow;
+class nsIMimeHeaders;
+class nsIUTF8StringEnumerator;
+struct BaseToken;
+struct CorpusToken;
+
+/**
+ * Helper class to enumerate Token objects in a PLDHashTable
+ * safely and without copying (see bugzilla #174859). The
+ * enumeration is safe to use until an Add()
+ * or Remove() is performed on the table.
+ */
+class TokenEnumeration {
+public:
+    TokenEnumeration(PLDHashTable* table);
+    bool hasMoreTokens();
+    BaseToken* nextToken();
+
+private:
+    PLDHashTable::Iterator mIterator;
+};
+
+// A trait is some aspect of a message, like being junk or tagged as
+// Personal, that the statistical classifier should track. The Trait
+// structure is a per-token representation of information pertaining to
+// a message trait.
+//
+// Traits per token are maintained as a linked list.
+//
+struct TraitPerToken
+{
+  uint32_t mId;          // identifying number for a trait
+  uint32_t mCount;       // count of messages with this token and trait
+  uint32_t mNextLink;    // index in mTraitStore for the next trait, or 0
+                         // for none
+  TraitPerToken(uint32_t aId, uint32_t aCount); // inititializer
+};
+
+// An Analysis is the statistical results for a particular message, a
+// particular token, and for a particular pair of trait/antitrait, that
+// is then used in subsequent analysis to score the message.
+//
+// Analyses per token are maintained as a linked list.
+//
+struct AnalysisPerToken
+{
+  uint32_t mTraitIndex;    // index representing a protrait/antitrait pair.
+                           // So if we are analyzing 3 different traits, then
+                           // the first trait is 0, the second 1, etc.
+  double mDistance;        // absolute value of mProbability - 0.5
+  double mProbability;     // relative indicator of match of trait to token
+  uint32_t mNextLink;      // index in mAnalysisStore for the Analysis object
+                           // for the next trait index, or 0 for none.
+  // initializer
+  AnalysisPerToken(uint32_t aTraitIndex, double aDistance, double aProbability);
+};
+
+class TokenHash {
+public:
+
+    virtual ~TokenHash();
+    /**
+     * Clears out the previous message tokens.
+     */
+    nsresult clearTokens();
+    uint32_t countTokens();
+    TokenEnumeration getTokens();
+    BaseToken* add(const char* word);
+
+protected:
+    TokenHash(uint32_t entrySize);
+    PLArenaPool mWordPool;
+    uint32_t mEntrySize;
+    PLDHashTable mTokenTable;
+    char* copyWord(const char* word, uint32_t len);
+    BaseToken* get(const char* word);
+};
+
+class Tokenizer: public TokenHash {
+public:
+    Tokenizer();
+    ~Tokenizer();
+
+    Token* get(const char* word);
+
+    // The training set keeps an occurrence count on each word. This count
+    // is supposed to count the # of messsages it occurs in.
+    // When add/remove is called while tokenizing a message and NOT the training set,
+    //
+    Token* add(const char* word, uint32_t count = 1);
+
+    Token* copyTokens();
+
+    void tokenize(const char* text);
+
+    /**
+     *  Creates specific tokens based on the mime headers for the message being tokenized
+     */
+    void tokenizeHeaders(nsIUTF8StringEnumerator * aHeaderNames, nsIUTF8StringEnumerator * aHeaderValues);
+
+    void tokenizeAttachment(const char * aContentType, const char * aFileName);
+
+    nsCString mBodyDelimiters; // delimiters for body tokenization
+    nsCString mHeaderDelimiters; // delimiters for header tokenization
+
+    // arrays of extra headers to tokenize / to not tokenize
+    nsTArray<nsCString> mEnabledHeaders;
+    nsTArray<nsCString> mDisabledHeaders;
+    // Delimiters used in tokenizing a particular header.
+    // Parallel array to mEnabledHeaders
+    nsTArray<nsCString> mEnabledHeadersDelimiters;
+    bool mCustomHeaderTokenization; // Are there any preference-set tokenization customizations?
+    uint32_t mMaxLengthForToken; // maximum length of a token
+    // should we convert iframe to div during tokenization?
+    bool mIframeToDiv;
+
+private:
+
+    void tokenize_ascii_word(char * word);
+    void tokenize_japanese_word(char* chunk);
+    inline void addTokenForHeader(const char * aTokenPrefix, nsACString& aValue,
+        bool aTokenizeValue = false, const char* aDelimiters = nullptr);
+    nsresult stripHTML(const nsAString& inString, nsAString& outString);
+    // helper function to escape \n, \t, etc from a CString
+    void UnescapeCString(nsCString& aCString);
+
+private:
+    nsCOMPtr<nsISemanticUnitScanner> mScanner;
+};
+
+/**
+ * Implements storage of a collection of message tokens and counts for
+ * a corpus of classified messages
+ */
+
+class CorpusStore: public TokenHash {
+public:
+    CorpusStore();
+    ~CorpusStore();
+
+    /**
+     * retrieve the token structure for a particular string
+     *
+     * @param word  the character representation of the token
+     *
+     * @return      token structure containing counts, null if not found
+     */
+    CorpusToken* get(const char* word);
+
+    /**
+     * add tokens to the storage, or increment counts if already exists.
+     *
+     * @param aTokenizer tokenizer for the list of tokens to remember
+     * @param aTraitId   id for the trait whose counts will be remembered
+     * @param aCount     number of new messages represented by the token list
+     */
+    void rememberTokens(Tokenizer& aTokenizer, uint32_t aTraitId, uint32_t aCount);
+
+    /**
+     * decrement counts for tokens in the storage, removing if all counts
+     * are zero
+     *
+     * @param aTokenizer tokenizer for the list of tokens to forget
+     * @param aTraitId   id for the trait whose counts will be removed
+     * @param aCount     number of messages represented by the token list
+     */
+    void forgetTokens(Tokenizer& aTokenizer, uint32_t aTraitId, uint32_t aCount);
+
+    /**
+     * write the corpus information to file storage
+     *
+     * @param aMaximumTokenCount  prune tokens if number of tokens exceeds
+     *                            this value.  == 0  for no pruning
+     */
+    void writeTrainingData(uint32_t aMaximumTokenCount);
+
+    /**
+     * read the corpus information from file storage
+     */
+    void readTrainingData();
+
+    /**
+     * delete the local corpus storage file and data
+     */
+    nsresult resetTrainingData();
+
+    /**
+     * get the count of messages whose tokens are stored that are associated
+     * with a trait
+     *
+     * @param aTraitId  identifier for the trait
+     * @return          number of messages for that trait
+     */
+    uint32_t getMessageCount(uint32_t aTraitId);
+
+    /**
+     * set the count of messages whose tokens are stored that are associated
+     * with a trait
+     *
+     * @param aTraitId  identifier for the trait
+     * @param aCount    number of messages for that trait
+     */
+    void setMessageCount(uint32_t aTraitId, uint32_t aCount);
+
+    /**
+     * get the count of messages associated with a particular token and trait
+     *
+     * @param  token     the token string and associated counts
+     * @param  aTraitId  identifier for the trait
+     */
+    uint32_t getTraitCount(CorpusToken *token, uint32_t aTraitId);
+
+    /**
+     * Add (or remove) data from a particular file to the corpus data.
+     *
+     * @param aFile       the file with the data, in the format:
+     *
+     *                    Format of the trait file for version 1:
+     *                    [0xFCA93601]  (the 01 is the version)
+     *                    for each trait to write:
+     *                    [id of trait to write] (0 means end of list)
+     *                    [number of messages per trait]
+     *                    for each token with non-zero count
+     *                    [count]
+     *                    [length of word]word
+     *
+     * @param aIsAdd      should the data be added, or removed? true if adding,
+     *                    else removing.
+     *
+     * @param aRemapCount number of items in the parallel arrays aFromTraits,
+     *                    aToTraits. These arrays allow conversion of the
+     *                    trait id stored in the file (which may be originated
+     *                    externally) to the trait id used in the local corpus
+     *                    (which is defined locally using nsIMsgTraitService).
+     *
+     * @param aFromTraits array of trait ids used in aFile. If aFile contains
+     *                    trait ids that are not in this array, they are not
+     *                    remapped, but assummed to be local trait ids.
+     *
+     * @param aToTraits   array of trait ids, corresponding to elements of
+     *                    aFromTraits, that represent the local trait ids to be
+     *                    used in storing data from aFile into the local corpus.
+     *
+     */
+    nsresult UpdateData(nsIFile *aFile, bool aIsAdd,
+                        uint32_t aRemapCount, uint32_t *aFromTraits,
+                        uint32_t *aToTraits);
+
+    /**
+     * remove all counts (message and tokens) for a trait id
+     *
+     * @param aTrait  trait id for the trait to remove
+     */
+    nsresult ClearTrait(uint32_t aTrait);
+
+protected:
+
+    /**
+     * return the local corpus storage file for junk traits
+     */
+    nsresult getTrainingFile(nsIFile ** aFile);
+
+    /**
+     * return the local corpus storage file for non-junk traits
+     */
+    nsresult getTraitFile(nsIFile ** aFile);
+
+    /**
+     * read token strings from the data file
+     *
+     * @param stream     file stream with token data
+     * @param fileSize   file size
+     * @param aTraitId   id for the trait whose counts will be read
+     * @param aIsAdd     true to add the counts, false to remove them
+     *
+     * @return           true if successful, false if error
+     */
+    bool readTokens(FILE* stream, int64_t fileSize, uint32_t aTraitId,
+                      bool aIsAdd);
+
+    /**
+     * write token strings to the data file
+     */
+    bool writeTokens(FILE* stream, bool shrink, uint32_t aTraitId);
+
+    /**
+     * remove counts for a token string
+     */
+    void remove(const char* word, uint32_t aTraitId, uint32_t aCount);
+
+    /**
+     * add counts for a token string, adding the token string if new
+     */
+    CorpusToken* add(const char* word, uint32_t aTraitId, uint32_t aCount);
+
+    /**
+     * change counts in a trait in the traits array, adding the trait if needed
+     */
+    nsresult updateTrait(CorpusToken* token, uint32_t aTraitId,
+      int32_t aCountChange);
+    nsCOMPtr<nsIFile> mTrainingFile;  // file used to store junk training data
+    nsCOMPtr<nsIFile> mTraitFile;     // file used to store non-junk
+                                           // training data
+    nsTArray<TraitPerToken> mTraitStore;   // memory for linked-list of counts
+    uint32_t mNextTraitIndex;              // index in mTraitStore to first empty
+                                           // TraitPerToken
+    nsTArray<uint32_t> mMessageCounts;     // count of messages per trait
+                                           // represented in the store
+    nsTArray<uint32_t> mMessageCountsId;   // Parallel array to mMessageCounts, with
+                                           // the corresponding trait ID
+};
+
+class nsBayesianFilter : public nsIJunkMailPlugin, nsIMsgCorpus,
+                         nsIObserver, nsSupportsWeakReference {
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIMSGFILTERPLUGIN
+    NS_DECL_NSIJUNKMAILPLUGIN
+    NS_DECL_NSIMSGCORPUS
+    NS_DECL_NSIOBSERVER
+
+    nsBayesianFilter();
+
+    nsresult Init();
+
+    nsresult tokenizeMessage(const char* messageURI, nsIMsgWindow *aMsgWindow, TokenAnalyzer* analyzer);
+    void classifyMessage(Tokenizer& tokens, const char* messageURI,
+                        nsIJunkMailClassificationListener* listener);
+
+    void classifyMessage(
+      Tokenizer& tokenizer,
+      const char* messageURI,
+      nsTArray<uint32_t>& aProTraits,
+      nsTArray<uint32_t>& aAntiTraits,
+      nsIJunkMailClassificationListener* listener,
+      nsIMsgTraitClassificationListener* aTraitListener,
+      nsIMsgTraitDetailListener* aDetailListener);
+
+    void observeMessage(Tokenizer& tokens, const char* messageURI,
+                        nsTArray<uint32_t>& oldClassifications,
+                        nsTArray<uint32_t>& newClassifications,
+                        nsIJunkMailClassificationListener* listener,
+                        nsIMsgTraitClassificationListener* aTraitListener);
+
+
+protected:
+    virtual ~nsBayesianFilter();
+
+    static void TimerCallback(nsITimer* aTimer, void* aClosure);
+
+    CorpusStore mCorpus;
+    double   mJunkProbabilityThreshold;
+    int32_t mMaximumTokenCount;
+    bool mTrainingDataDirty;
+    int32_t mMinFlushInterval; // in milliseconds, must be positive
+                               //and not too close to 0
+    nsCOMPtr<nsITimer> mTimer;
+
+    // index in mAnalysisStore for first empty AnalysisPerToken
+    uint32_t mNextAnalysisIndex;
+     // memory for linked list of AnalysisPerToken objects
+    nsTArray<AnalysisPerToken> mAnalysisStore;
+    /**
+     * Determine the location in mAnalysisStore where the AnalysisPerToken
+     * object for a particular token and trait is stored
+     */
+    uint32_t getAnalysisIndex(Token& token, uint32_t aTraitIndex);
+    /**
+     * Set the value of the AnalysisPerToken object for a particular
+     * token and trait
+     */
+    nsresult setAnalysis(Token& token, uint32_t aTraitIndex,
+                         double aDistance, double aProbability);
+};
+
+#endif // _nsBayesianFilter_h__
diff --git a/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilterCID.h b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilterCID.h
new file mode 100644
index 000000000..b1a54a1fc
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/src/nsBayesianFilterCID.h
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsBayesianFilterCID_h__
+#define nsBayesianFilterCID_h__
+
+#include "nsISupports.h"
+#include "nsIFactory.h"
+#include "nsIComponentManager.h"
+
+#include "nsIMsgMdnGenerator.h"
+
+#define NS_BAYESIANFILTER_CONTRACTID \
+  "@mozilla.org/messenger/filter-plugin;1?name=bayesianfilter"
+#define NS_BAYESIANFILTER_CID                    \
+{ /* F1070BFA-D539-11D6-90CA-00039310A47A */      \
+ 0xF1070BFA, 0xD539, 0x11D6,                      \
+ { 0x90, 0xCA, 0x00, 0x03, 0x93, 0x10, 0xA4, 0x7A }}
+
+#endif /* nsBayesianFilterCID_h__ */
diff --git a/mailnews/extensions/bayesian-spam-filter/src/nsIncompleteGamma.h b/mailnews/extensions/bayesian-spam-filter/src/nsIncompleteGamma.h
new file mode 100644
index 000000000..1f7388b16
--- /dev/null
+++ b/mailnews/extensions/bayesian-spam-filter/src/nsIncompleteGamma.h
@@ -0,0 +1,259 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsIncompleteGamma_h__
+#define nsIncompleteGamma_h__
+
+/* An implementation of the incomplete gamma functions for real
+   arguments. P is defined as
+
+                          x
+                         /
+                  1      [     a - 1  - t
+    P(a, x) =  --------  I    t      e    dt
+               Gamma(a)  ]
+                         /
+                          0
+
+   and
+
+                          infinity
+                         /
+                  1      [     a - 1  - t
+    Q(a, x) =  --------  I    t      e    dt
+               Gamma(a)  ]
+                         /
+                          x
+
+   so that P(a,x) + Q(a,x) = 1.
+
+   Both a series expansion and a continued fraction exist.  This
+   implementation uses the more efficient method based on the arguments.
+
+   Either case involves calculating a multiplicative term:
+      e^(-x)*x^a/Gamma(a).
+   Here we calculate the log of this term. Most math libraries have a
+   "lgamma" function but it is not re-entrant. Some libraries have a
+   "lgamma_r" which is re-entrant. Use it if possible. I have included a
+   simple replacement but it is certainly not as accurate.
+
+   Relative errors are almost always < 1e-10 and usually < 1e-14. Very
+   small and very large arguments cause trouble.
+
+   The region where a < 0.5 and x < 0.5 has poor error properties and is
+   not too stable. Get a better routine if you need results in this
+   region.
+
+   The error argument will be set negative if there is a domain error or
+   positive for an internal calculation error, currently lack of
+   convergence. A value is always returned, though.
+
+ */
+
+#include <math.h>
+#include <float.h>
+
+// the main routine
+static double nsIncompleteGammaP (double a, double x, int *error);
+
+// nsLnGamma(z): either a wrapper around lgamma_r or the internal function.
+// C_m = B[2*m]/(2*m*(2*m-1)) where B is a Bernoulli number
+static const double C_1 = 1.0 / 12.0;
+static const double C_2 = -1.0 / 360.0;
+static const double C_3 = 1.0 / 1260.0;
+static const double C_4 = -1.0 / 1680.0;
+static const double C_5 = 1.0 / 1188.0;
+static const double C_6 = -691.0 / 360360.0;
+static const double C_7 = 1.0 / 156.0;
+static const double C_8 = -3617.0 / 122400.0;
+static const double C_9 = 43867.0 / 244188.0;
+static const double C_10 = -174611.0 / 125400.0;
+static const double C_11 = 77683.0 / 5796.0;
+
+// truncated asymptotic series in 1/z
+static inline double lngamma_asymp (double z)
+{
+  double w, w2, sum;
+  w = 1.0 / z;
+  w2 = w * w;
+  sum = w * (w2 * (w2 * (w2 * (w2 * (w2 * (w2 * (w2 * (w2 * (w2
+        * (C_11 * w2 + C_10) + C_9) + C_8) + C_7) + C_6)
+        + C_5) + C_4) + C_3) + C_2) + C_1);
+
+  return sum;
+}
+
+struct fact_table_s
+{
+  double fact;
+  double lnfact;
+};
+
+// for speed and accuracy
+static const struct fact_table_s FactTable[] = {
+    {1.000000000000000, 0.0000000000000000000000e+00},
+    {1.000000000000000, 0.0000000000000000000000e+00},
+    {2.000000000000000, 6.9314718055994530942869e-01},
+    {6.000000000000000, 1.7917594692280550007892e+00},
+    {24.00000000000000, 3.1780538303479456197550e+00},
+    {120.0000000000000, 4.7874917427820459941458e+00},
+    {720.0000000000000, 6.5792512120101009952602e+00},
+    {5040.000000000000, 8.5251613610654142999881e+00},
+    {40320.00000000000, 1.0604602902745250228925e+01},
+    {362880.0000000000, 1.2801827480081469610995e+01},
+    {3628800.000000000, 1.5104412573075515295248e+01},
+    {39916800.00000000, 1.7502307845873885839769e+01},
+    {479001600.0000000, 1.9987214495661886149228e+01},
+    {6227020800.000000, 2.2552163853123422886104e+01},
+    {87178291200.00000, 2.5191221182738681499610e+01},
+    {1307674368000.000, 2.7899271383840891566988e+01},
+    {20922789888000.00, 3.0671860106080672803835e+01},
+    {355687428096000.0, 3.3505073450136888885825e+01},
+    {6402373705728000., 3.6395445208033053576674e+01}
+};
+#define FactTableLength (int)(sizeof(FactTable)/sizeof(FactTable[0]))
+
+// for speed
+static const double ln_2pi_2 = 0.918938533204672741803;	// log(2*PI)/2
+
+/* A simple lgamma function, not very robust.
+
+   Valid for z_in > 0 ONLY.
+
+   For z_in > 8 precision is quite good, relative errors < 1e-14 and
+   usually better. For z_in < 8 relative errors increase but are usually
+   < 1e-10. In two small regions, 1 +/- .001 and 2 +/- .001 errors
+   increase quickly.
+*/
+static double nsLnGamma (double z_in, int *gsign)
+{
+  double scale, z, sum, result;
+  *gsign = 1;
+
+  int zi = (int) z_in;
+  if (z_in == (double) zi)
+  {
+    if (0 < zi && zi <= FactTableLength)
+	    return FactTable[zi - 1].lnfact;	// gamma(z) = (z-1)!
+  }
+
+  for (scale = 1.0, z = z_in; z < 8.0; ++z)
+    scale *= z;
+  
+  sum = lngamma_asymp (z);
+  result = (z - 0.5) * log (z) - z + ln_2pi_2 - log (scale);
+  result += sum;
+  return result;
+}
+
+// log( e^(-x)*x^a/Gamma(a) )
+static inline double lnPQfactor (double a, double x)
+{
+  int gsign;				// ignored because a > 0
+  return a * log (x) - x - nsLnGamma (a, &gsign);
+}
+
+static double Pseries (double a, double x, int *error)
+{
+  double sum, term;
+  const double eps = 2.0 * DBL_EPSILON;
+  const int imax = 5000;
+  int i;
+
+  sum = term = 1.0 / a;
+  for (i = 1; i < imax; ++i)
+  {
+	  term *= x / (a + i);
+	  sum += term;
+	  if (fabs (term) < eps * fabs (sum))
+      break;
+  }
+
+  if (i >= imax)
+	  *error = 1;
+
+  return sum;
+}
+
+static double Qcontfrac (double a, double x, int *error)
+{
+  double result, D, C, e, f, term;
+  const double eps = 2.0 * DBL_EPSILON;
+  const double small =
+  DBL_EPSILON * DBL_EPSILON * DBL_EPSILON * DBL_EPSILON;
+  const int imax = 5000;
+  int i;
+
+  // modified Lentz method
+  f = x - a + 1.0;
+  if (fabs (f) < small)
+    f = small;
+  C = f + 1.0 / small;
+  D = 1.0 / f;
+  result = D;
+  for (i = 1; i < imax; ++i)
+  {
+    e = i * (a - i);
+    f += 2.0;
+    D = f + e * D;
+    if (fabs (D) < small)
+      D = small;
+    D = 1.0 / D;
+    C = f + e / C;
+    if (fabs (C) < small)
+      C = small;
+    term = C * D;
+    result *= term;
+    if (fabs (term - 1.0) < eps)
+      break;
+  }
+
+  if (i >= imax)
+    *error = 1;
+  return result;
+}
+
+static double nsIncompleteGammaP (double a, double x, int *error)
+{
+  double result, dom, ldom;
+  //  domain errors. the return values are meaningless but have
+  //  to return something. 
+  *error = -1;
+  if (a <= 0.0)
+	  return 1.0;
+  if (x < 0.0)
+	  return 0.0;
+  *error = 0;
+  if (x == 0.0)
+    return 0.0;
+
+  ldom = lnPQfactor (a, x);
+  dom = exp (ldom);
+  // might need to adjust the crossover point
+  if (a <= 0.5)
+  {
+    if (x < a + 1.0)
+      result = dom * Pseries (a, x, error);
+    else
+      result = 1.0 - dom * Qcontfrac (a, x, error);
+  }
+  else
+  {
+    if (x < a)
+      result = dom * Pseries (a, x, error);
+	  else
+	    result = 1.0 - dom * Qcontfrac (a, x, error);
+  }
+
+  // not clear if this can ever happen
+  if (result > 1.0)
+    result = 1.0;
+  if (result < 0.0)
+    result = 0.0;
+  return result;
+}
+
+#endif
+
diff --git a/mailnews/extensions/dsn/content/am-dsn.js b/mailnews/extensions/dsn/content/am-dsn.js
new file mode 100644
index 000000000..2c8a5f923
--- /dev/null
+++ b/mailnews/extensions/dsn/content/am-dsn.js
@@ -0,0 +1,36 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var useCustomPrefs;
+var requestAlways;
+var gIdentity;
+
+function onInit() 
+{
+  useCustomPrefs = document.getElementById("identity.dsn_use_custom_prefs");
+  requestAlways = document.getElementById("identity.dsn_always_request_on");
+
+  EnableDisableCustomSettings();
+
+  return true;
+}
+
+function onSave()
+{
+}
+
+function EnableDisableCustomSettings() {
+  if (useCustomPrefs && (useCustomPrefs.getAttribute("value") == "false"))
+    requestAlways.setAttribute("disabled", "true");
+  else
+    requestAlways.removeAttribute("disabled");
+
+  return true;
+}
+
+function onPreInit(account, accountValues)
+{
+  gIdentity = account.defaultIdentity;
+}
diff --git a/mailnews/extensions/dsn/content/am-dsn.xul b/mailnews/extensions/dsn/content/am-dsn.xul
new file mode 100644
index 000000000..1327021ca
--- /dev/null
+++ b/mailnews/extensions/dsn/content/am-dsn.xul
@@ -0,0 +1,57 @@
+<?xml version="1.0"?>
+
+<!--
+
+ This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css" type="text/css"?>
+
+<!DOCTYPE page SYSTEM "chrome://messenger/locale/am-dsn.dtd">
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" 
+      onload="parent.onPanelLoaded('am-dsn.xul');">
+
+  <stringbundle id="bundle_smime" src="chrome://messenger/locale/am-dsn.properties"/> 
+  <script type="application/javascript" src="chrome://messenger/content/AccountManager.js"/>
+  <script type="application/javascript" src="chrome://messenger/content/am-dsn.js"/>
+  
+  <dialogheader title="&pane.title;"/>
+
+  <groupbox>
+
+    <caption label="&pane.title;"/>
+
+    <hbox id="prefChoices" align="center">
+      <radiogroup id="identity.dsn_use_custom_prefs"
+                  wsm_persist="true"
+                  genericattr="true" 
+                  preftype="bool"
+                  prefstring="mail.identity.%identitykey%.dsn_use_custom_prefs" 
+                  oncommand="EnableDisableCustomSettings();">
+    
+        <radio id="identity.select_global_prefs"
+               value="false"
+               label="&useGlobalPrefs.label;"
+               accesskey="&useGlobalPrefs.accesskey;"/>
+    
+        <radio id="identity.select_custom_prefs"
+               value="true"
+               label="&useCustomPrefs.label;"
+               accesskey="&useCustomPrefs.accesskey;"/>
+      </radiogroup>
+    </hbox>
+
+    <vbox id="dsnSettings" class="indent" align="start">
+      <checkbox id="identity.dsn_always_request_on"
+                label="&requestAlways.label;"
+                accesskey="&requestAlways.accesskey;"
+                wsm_persist="true"
+                genericattr="true"
+                iscontrolcontainer="true"
+                preftype="bool"
+                prefstring="mail.identity.%identitykey%.dsn_always_request_on"/>
+    </vbox>
+  </groupbox>
+</page>
diff --git a/mailnews/extensions/dsn/content/dsn.js b/mailnews/extensions/dsn/content/dsn.js
new file mode 100644
index 000000000..043aa1b94
--- /dev/null
+++ b/mailnews/extensions/dsn/content/dsn.js
@@ -0,0 +1,9 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * default prefs for dsn
+ */
+pref("mail.identity.default.dsn_use_custom_prefs", false);  // false: Use global true: Use custom
+pref("mail.identity.default.dsn_always_request_on", false);
diff --git a/mailnews/extensions/dsn/jar.mn b/mailnews/extensions/dsn/jar.mn
new file mode 100644
index 000000000..2ecdd7057
--- /dev/null
+++ b/mailnews/extensions/dsn/jar.mn
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifdef MOZ_SUITE
+messenger.jar:
+    content/messenger/am-dsn.xul                                     (content/am-dsn.xul)
+    content/messenger/am-dsn.js                                      (content/am-dsn.js)
+#endif
diff --git a/mailnews/extensions/dsn/moz.build b/mailnews/extensions/dsn/moz.build
new file mode 100644
index 000000000..10cc8cb56
--- /dev/null
+++ b/mailnews/extensions/dsn/moz.build
@@ -0,0 +1,15 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+EXTRA_COMPONENTS += [
+    'src/dsn-service.js',
+    'src/dsn-service.manifest',
+]
+
+JAR_MANIFESTS += ['jar.mn']
+
+JS_PREFERENCE_FILES += [
+    'content/dsn.js',
+]
\ No newline at end of file
diff --git a/mailnews/extensions/dsn/src/dsn-service.js b/mailnews/extensions/dsn/src/dsn-service.js
new file mode 100644
index 000000000..76ceeb04b
--- /dev/null
+++ b/mailnews/extensions/dsn/src/dsn-service.js
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+function DSNService() {}
+
+DSNService.prototype = {
+  name: "dsn",
+  chromePackageName: "messenger",
+  showPanel: function(server) {
+    // don't show the panel for news, rss, or local accounts
+    return (server.type != "nntp" && server.type != "rss" &&
+            server.type != "none");
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIMsgAccountManagerExtension]),
+  classID: Components.ID("{849dab91-9bc9-4508-a0ee-c2453e7c092d}"),
+};
+
+var components = [DSNService];
+var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/mailnews/extensions/dsn/src/dsn-service.manifest b/mailnews/extensions/dsn/src/dsn-service.manifest
new file mode 100644
index 000000000..2853fb3e8
--- /dev/null
+++ b/mailnews/extensions/dsn/src/dsn-service.manifest
@@ -0,0 +1,3 @@
+component {849dab91-9bc9-4508-a0ee-c2453e7c092d} dsn-service.js
+contract @mozilla.org/accountmanager/extension;1?name=dsn {849dab91-9bc9-4508-a0ee-c2453e7c092d}
+category mailnews-accountmanager-extensions dsn-account-manager-extension @mozilla.org/accountmanager/extension;1?name=dsn
diff --git a/mailnews/extensions/fts3/data/README b/mailnews/extensions/fts3/data/README
new file mode 100644
index 000000000..d7c13abbb
--- /dev/null
+++ b/mailnews/extensions/fts3/data/README
@@ -0,0 +1,5 @@
+The data files in this directory come from the ICU project:
+http://bugs.icu-project.org/trac/browser/icu/trunk/source/data/unidata/norm2
+
+They are intended to be consumed by the ICU project's gennorm2 script.  We have
+our own script that processes them.
diff --git a/mailnews/extensions/fts3/data/generate_table.py b/mailnews/extensions/fts3/data/generate_table.py
new file mode 100644
index 000000000..f6b012685
--- /dev/null
+++ b/mailnews/extensions/fts3/data/generate_table.py
@@ -0,0 +1,264 @@
+#!/usr/bin/python
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is Mozilla Thunderbird.
+#
+# The Initial Developer of the Original Code is Mozilla Japan.
+# Portions created by the Initial Developer are Copyright (C) 2010
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Makoto Kato <m_kato@ga2.so-net.ne.jp>
+#   Andrew Sutherland <asutherland@asutherland.org>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+import re
+
+def printTable(f, t):
+	i = f
+	while i <= t:
+		c = array[i]
+		print "0x%04x," % c,
+		i = i + 1
+		if not i % 8:
+			print "\n\t",
+
+print '''/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Japan.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Makoto Kato <m_kato@ga2.so-net.ne.jp>
+ *   Andrew Sutherland <asutherland@asutherland.org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* THIS FILE IS GENERATED BY generate_table.py.  DON'T EDIT THIS */
+'''
+
+p = re.compile('([0-9A-F]{4,5})(?:\.\.([0-9A-F]{4,5}))?[=\>]([0-9A-F]{4,5})?')
+G_FROM = 1
+G_TO = 2
+G_FIRSTVAL = 3
+
+# Array whose value at index i is the unicode value unicode character i should
+# map to.
+array = []
+# Contents of gNormalizeTable.  We insert zero entries for sub-pages where we
+# have no mappings.  We insert references to the tables where we do have
+# such tables.
+globalTable = []
+globalTable.append("0")
+# The (exclusive) upper bound of the conversion table, unicode character-wise.
+# This is 0x10000 because our generated table is only 16-bit.  This also limits
+# the values we can map to; we perform an identity mapping for target values
+# that >= maxmapping.
+maxmapping = 0x10000
+sizePerTable = 64
+
+# Map characters that the mapping tells us to obliterate to the NUKE_CHAR
+# (such lines look like "FFF0..FFF8>")
+# We do this because if we didn't do this, we would emit these characters as
+# part of a token, which we definitely don't want.
+NUKE_CHAR = 0x20
+
+# --- load case folding table
+# entries in the file look like:
+#  0041>0061
+#  02D8>0020 0306
+#  2000..200A>0020
+#
+# The 0041 (uppercase A) tells us it lowercases to 0061 (lowercase a).
+# The 02D8 is a "spacing clone[s] of diacritic" breve which gets decomposed into
+#  a space character and a breve.  This entry/type of entry also shows up in
+#  'nfkc.txt'.
+# The 2000..200A covers a range of space characters and maps them down to the
+#  'normal' space character.
+
+file = open('nfkc_cf.txt')
+
+m = None
+line = "\n"
+i = 0x0
+while i < maxmapping and line:
+        if not m:
+                line = file.readline()
+                m = p.match(line)
+                if not m:
+                        continue
+                low = int(m.group(G_FROM), 16)
+                # if G_TO is present, use it, otherwise fallback to low
+                high = m.group(G_TO) and int(m.group(G_TO), 16) or low
+                # if G_FIRSTVAL is present use it, otherwise use NUKE_CHAR
+                val = (m.group(G_FIRSTVAL) and int(m.group(G_FIRSTVAL), 16)
+                                           or NUKE_CHAR)
+		continue
+
+
+        if i >= low and i <= high:
+		if val >= maxmapping:
+			array.append(i)
+		else:
+			array.append(val)
+                if i == high:
+                        m = None
+	else:
+		array.append(i)
+	i = i + 1
+file.close()
+
+# --- load normalization / decomposition table
+# It is important that this file gets processed second because the other table
+# will tell us about mappings from uppercase U with diaeresis to lowercase u
+# with diaeresis.  We obviously don't want that clobbering our value.  (Although
+# this would work out if we propagated backwards rather than forwards...)
+#
+# - entries in this file that we care about look like:
+#  00A0>0020
+#  0100=0041 0304
+#
+# They are found in the "Canonical and compatibility decomposition mappings"
+# section.
+#
+# The 00A0 is mapping NBSP to the normal space character.
+# The 0100 (a capital A with a bar over top of) is equivalent to 0041 (capital
+#  A) plus a 0304 (combining overline).  We do not care about the combining
+#  marks which is why our regular expression does not capture it.
+#
+#
+# - entries that we do not care about look like:
+#  0300..0314:230
+#
+# These map marks to their canonical combining class which appears to be a way
+# of specifying the precedence / order in which marks should be combined.  The
+# key thing is we don't care about them.
+file = open('nfkc.txt')
+line = file.readline()
+m = p.match(line)
+while line:
+	if not m:
+		line = file.readline()
+		m = p.match(line)
+		continue
+
+        low = int(m.group(G_FROM), 16)
+        # if G_TO is present, use it, otherwise fallback to low
+        high = m.group(G_TO) and int(m.group(G_TO), 16) or low
+        # if G_FIRSTVAL is present use it, otherwise fall back to NUKE_CHAR
+        val = m.group(G_FIRSTVAL) and int(m.group(G_FIRSTVAL), 16) or NUKE_CHAR
+        for i in range(low, high+1):
+                if i < maxmapping and val < maxmapping:
+                        array[i] = val
+	m = None
+file.close()
+
+# --- generate a normalized table to support case and accent folding
+
+i = 0
+needTerm = False;
+while i < maxmapping:
+	if not i % sizePerTable:
+		# table is empty?
+		j = i
+		while j < i + sizePerTable:
+			if array[j] != j:
+				break
+			j += 1
+
+		if j == i + sizePerTable:
+			if i:
+				globalTable.append("0")
+			i += sizePerTable
+			continue
+
+		if needTerm:
+			print "};\n"
+		globalTable.append("gNormalizeTable%04x" % i)
+		print "static const unsigned short gNormalizeTable%04x[] = {\n\t" % i,
+		print "/* U+%04x */\n\t" % i,
+		needTerm = True
+        # Decomposition does not case-fold, so we want to compensate by
+        # performing a lookup here.  Because decomposition chains can be
+        # example: 01d5, a capital U with a diaeresis and a bar. yes, really.
+        # 01d5 -> 00dc -> 0055 (U) -> 0075 (u)
+        c = array[i]
+        while c != array[c]:
+                c = array[c]
+        if c >= 0x41 and c <= 0x5a:
+                raise Exception('got an uppercase character somehow: %x => %x'
+                                % (i, c))
+	print "0x%04x," % c,
+	i = i + 1
+	if not i % 8:
+		print "\n\t",
+
+print "};\n\nstatic const unsigned short* gNormalizeTable[] = {",
+i = 0
+while i < (maxmapping / sizePerTable):
+	if not i % 4:
+		print "\n\t",
+	print globalTable[i] + ",", 
+	i += 1
+
+print '''
+};
+
+unsigned int normalize_character(const unsigned int c)
+{
+  if (c >= ''' + ('0x%x' % (maxmapping,)) + ''' || !gNormalizeTable[c >> 6])
+    return c;
+  return gNormalizeTable[c >> 6][c & 0x3f];
+}
+'''
diff --git a/mailnews/extensions/fts3/data/nfkc.txt b/mailnews/extensions/fts3/data/nfkc.txt
new file mode 100644
index 000000000..08aaf353f
--- /dev/null
+++ b/mailnews/extensions/fts3/data/nfkc.txt
@@ -0,0 +1,5786 @@
+# Copyright (C) 1999-2010, International Business Machines
+# Corporation and others.  All Rights Reserved.
+#
+# file name: nfkc.txt
+#
+# machine-generated on: 2009-11-30
+#
+
+# Canonical_Combining_Class (ccc) values
+0300..0314:230
+0315:232
+0316..0319:220
+031A:232
+031B:216
+031C..0320:220
+0321..0322:202
+0323..0326:220
+0327..0328:202
+0329..0333:220
+0334..0338:1
+0339..033C:220
+033D..0344:230
+0345:240
+0346:230
+0347..0349:220
+034A..034C:230
+034D..034E:220
+0350..0352:230
+0353..0356:220
+0357:230
+0358:232
+0359..035A:220
+035B:230
+035C:233
+035D..035E:234
+035F:233
+0360..0361:234
+0362:233
+0363..036F:230
+0483..0487:230
+0591:220
+0592..0595:230
+0596:220
+0597..0599:230
+059A:222
+059B:220
+059C..05A1:230
+05A2..05A7:220
+05A8..05A9:230
+05AA:220
+05AB..05AC:230
+05AD:222
+05AE:228
+05AF:230
+05B0:10
+05B1:11
+05B2:12
+05B3:13
+05B4:14
+05B5:15
+05B6:16
+05B7:17
+05B8:18
+05B9..05BA:19
+05BB:20
+05BC:21
+05BD:22
+05BF:23
+05C1:24
+05C2:25
+05C4:230
+05C5:220
+05C7:18
+0610..0617:230
+0618:30
+0619:31
+061A:32
+064B:27
+064C:28
+064D:29
+064E:30
+064F:31
+0650:32
+0651:33
+0652:34
+0653..0654:230
+0655..0656:220
+0657..065B:230
+065C:220
+065D..065E:230
+0670:35
+06D6..06DC:230
+06DF..06E2:230
+06E3:220
+06E4:230
+06E7..06E8:230
+06EA:220
+06EB..06EC:230
+06ED:220
+0711:36
+0730:230
+0731:220
+0732..0733:230
+0734:220
+0735..0736:230
+0737..0739:220
+073A:230
+073B..073C:220
+073D:230
+073E:220
+073F..0741:230
+0742:220
+0743:230
+0744:220
+0745:230
+0746:220
+0747:230
+0748:220
+0749..074A:230
+07EB..07F1:230
+07F2:220
+07F3:230
+0816..0819:230
+081B..0823:230
+0825..0827:230
+0829..082D:230
+093C:7
+094D:9
+0951:230
+0952:220
+0953..0954:230
+09BC:7
+09CD:9
+0A3C:7
+0A4D:9
+0ABC:7
+0ACD:9
+0B3C:7
+0B4D:9
+0BCD:9
+0C4D:9
+0C55:84
+0C56:91
+0CBC:7
+0CCD:9
+0D4D:9
+0DCA:9
+0E38..0E39:103
+0E3A:9
+0E48..0E4B:107
+0EB8..0EB9:118
+0EC8..0ECB:122
+0F18..0F19:220
+0F35:220
+0F37:220
+0F39:216
+0F71:129
+0F72:130
+0F74:132
+0F7A..0F7D:130
+0F80:130
+0F82..0F83:230
+0F84:9
+0F86..0F87:230
+0FC6:220
+1037:7
+1039..103A:9
+108D:220
+135F:230
+1714:9
+1734:9
+17D2:9
+17DD:230
+18A9:228
+1939:222
+193A:230
+193B:220
+1A17:230
+1A18:220
+1A60:9
+1A75..1A7C:230
+1A7F:220
+1B34:7
+1B44:9
+1B6B:230
+1B6C:220
+1B6D..1B73:230
+1BAA:9
+1C37:7
+1CD0..1CD2:230
+1CD4:1
+1CD5..1CD9:220
+1CDA..1CDB:230
+1CDC..1CDF:220
+1CE0:230
+1CE2..1CE8:1
+1CED:220
+1DC0..1DC1:230
+1DC2:220
+1DC3..1DC9:230
+1DCA:220
+1DCB..1DCC:230
+1DCD:234
+1DCE:214
+1DCF:220
+1DD0:202
+1DD1..1DE6:230
+1DFD:220
+1DFE:230
+1DFF:220
+20D0..20D1:230
+20D2..20D3:1
+20D4..20D7:230
+20D8..20DA:1
+20DB..20DC:230
+20E1:230
+20E5..20E6:1
+20E7:230
+20E8:220
+20E9:230
+20EA..20EB:1
+20EC..20EF:220
+20F0:230
+2CEF..2CF1:230
+2DE0..2DFF:230
+302A:218
+302B:228
+302C:232
+302D:222
+302E..302F:224
+3099..309A:8
+A66F:230
+A67C..A67D:230
+A6F0..A6F1:230
+A806:9
+A8C4:9
+A8E0..A8F1:230
+A92B..A92D:220
+A953:9
+A9B3:7
+A9C0:9
+AAB0:230
+AAB2..AAB3:230
+AAB4:220
+AAB7..AAB8:230
+AABE..AABF:230
+AAC1:230
+ABED:9
+FB1E:26
+FE20..FE26:230
+101FD:220
+10A0D:220
+10A0F:230
+10A38:230
+10A39:1
+10A3A:220
+10A3F:9
+110B9:9
+110BA:7
+1D165..1D166:216
+1D167..1D169:1
+1D16D:226
+1D16E..1D172:216
+1D17B..1D182:220
+1D185..1D189:230
+1D18A..1D18B:220
+1D1AA..1D1AD:230
+1D242..1D244:230
+
+# Canonical and compatibility decomposition mappings
+00A0>0020
+00A8>0020 0308
+00AA>0061
+00AF>0020 0304
+00B2>0032
+00B3>0033
+00B4>0020 0301
+00B5>03BC
+00B8>0020 0327
+00B9>0031
+00BA>006F
+00BC>0031 2044 0034
+00BD>0031 2044 0032
+00BE>0033 2044 0034
+00C0=0041 0300
+00C1=0041 0301
+00C2=0041 0302
+00C3=0041 0303
+00C4=0041 0308
+00C5=0041 030A
+00C7=0043 0327
+00C8=0045 0300
+00C9=0045 0301
+00CA=0045 0302
+00CB=0045 0308
+00CC=0049 0300
+00CD=0049 0301
+00CE=0049 0302
+00CF=0049 0308
+00D1=004E 0303
+00D2=004F 0300
+00D3=004F 0301
+00D4=004F 0302
+00D5=004F 0303
+00D6=004F 0308
+00D9=0055 0300
+00DA=0055 0301
+00DB=0055 0302
+00DC=0055 0308
+00DD=0059 0301
+00E0=0061 0300
+00E1=0061 0301
+00E2=0061 0302
+00E3=0061 0303
+00E4=0061 0308
+00E5=0061 030A
+00E7=0063 0327
+00E8=0065 0300
+00E9=0065 0301
+00EA=0065 0302
+00EB=0065 0308
+00EC=0069 0300
+00ED=0069 0301
+00EE=0069 0302
+00EF=0069 0308
+00F1=006E 0303
+00F2=006F 0300
+00F3=006F 0301
+00F4=006F 0302
+00F5=006F 0303
+00F6=006F 0308
+00F9=0075 0300
+00FA=0075 0301
+00FB=0075 0302
+00FC=0075 0308
+00FD=0079 0301
+00FF=0079 0308
+0100=0041 0304
+0101=0061 0304
+0102=0041 0306
+0103=0061 0306
+0104=0041 0328
+0105=0061 0328
+0106=0043 0301
+0107=0063 0301
+0108=0043 0302
+0109=0063 0302
+010A=0043 0307
+010B=0063 0307
+010C=0043 030C
+010D=0063 030C
+010E=0044 030C
+010F=0064 030C
+0112=0045 0304
+0113=0065 0304
+0114=0045 0306
+0115=0065 0306
+0116=0045 0307
+0117=0065 0307
+0118=0045 0328
+0119=0065 0328
+011A=0045 030C
+011B=0065 030C
+011C=0047 0302
+011D=0067 0302
+011E=0047 0306
+011F=0067 0306
+0120=0047 0307
+0121=0067 0307
+0122=0047 0327
+0123=0067 0327
+0124=0048 0302
+0125=0068 0302
+0128=0049 0303
+0129=0069 0303
+012A=0049 0304
+012B=0069 0304
+012C=0049 0306
+012D=0069 0306
+012E=0049 0328
+012F=0069 0328
+0130=0049 0307
+0132>0049 004A
+0133>0069 006A
+0134=004A 0302
+0135=006A 0302
+0136=004B 0327
+0137=006B 0327
+0139=004C 0301
+013A=006C 0301
+013B=004C 0327
+013C=006C 0327
+013D=004C 030C
+013E=006C 030C
+013F>004C 00B7
+0140>006C 00B7
+0143=004E 0301
+0144=006E 0301
+0145=004E 0327
+0146=006E 0327
+0147=004E 030C
+0148=006E 030C
+0149>02BC 006E
+014C=004F 0304
+014D=006F 0304
+014E=004F 0306
+014F=006F 0306
+0150=004F 030B
+0151=006F 030B
+0154=0052 0301
+0155=0072 0301
+0156=0052 0327
+0157=0072 0327
+0158=0052 030C
+0159=0072 030C
+015A=0053 0301
+015B=0073 0301
+015C=0053 0302
+015D=0073 0302
+015E=0053 0327
+015F=0073 0327
+0160=0053 030C
+0161=0073 030C
+0162=0054 0327
+0163=0074 0327
+0164=0054 030C
+0165=0074 030C
+0168=0055 0303
+0169=0075 0303
+016A=0055 0304
+016B=0075 0304
+016C=0055 0306
+016D=0075 0306
+016E=0055 030A
+016F=0075 030A
+0170=0055 030B
+0171=0075 030B
+0172=0055 0328
+0173=0075 0328
+0174=0057 0302
+0175=0077 0302
+0176=0059 0302
+0177=0079 0302
+0178=0059 0308
+0179=005A 0301
+017A=007A 0301
+017B=005A 0307
+017C=007A 0307
+017D=005A 030C
+017E=007A 030C
+017F>0073
+01A0=004F 031B
+01A1=006F 031B
+01AF=0055 031B
+01B0=0075 031B
+01C4>0044 017D
+01C5>0044 017E
+01C6>0064 017E
+01C7>004C 004A
+01C8>004C 006A
+01C9>006C 006A
+01CA>004E 004A
+01CB>004E 006A
+01CC>006E 006A
+01CD=0041 030C
+01CE=0061 030C
+01CF=0049 030C
+01D0=0069 030C
+01D1=004F 030C
+01D2=006F 030C
+01D3=0055 030C
+01D4=0075 030C
+01D5=00DC 0304
+01D6=00FC 0304
+01D7=00DC 0301
+01D8=00FC 0301
+01D9=00DC 030C
+01DA=00FC 030C
+01DB=00DC 0300
+01DC=00FC 0300
+01DE=00C4 0304
+01DF=00E4 0304
+01E0=0226 0304
+01E1=0227 0304
+01E2=00C6 0304
+01E3=00E6 0304
+01E6=0047 030C
+01E7=0067 030C
+01E8=004B 030C
+01E9=006B 030C
+01EA=004F 0328
+01EB=006F 0328
+01EC=01EA 0304
+01ED=01EB 0304
+01EE=01B7 030C
+01EF=0292 030C
+01F0=006A 030C
+01F1>0044 005A
+01F2>0044 007A
+01F3>0064 007A
+01F4=0047 0301
+01F5=0067 0301
+01F8=004E 0300
+01F9=006E 0300
+01FA=00C5 0301
+01FB=00E5 0301
+01FC=00C6 0301
+01FD=00E6 0301
+01FE=00D8 0301
+01FF=00F8 0301
+0200=0041 030F
+0201=0061 030F
+0202=0041 0311
+0203=0061 0311
+0204=0045 030F
+0205=0065 030F
+0206=0045 0311
+0207=0065 0311
+0208=0049 030F
+0209=0069 030F
+020A=0049 0311
+020B=0069 0311
+020C=004F 030F
+020D=006F 030F
+020E=004F 0311
+020F=006F 0311
+0210=0052 030F
+0211=0072 030F
+0212=0052 0311
+0213=0072 0311
+0214=0055 030F
+0215=0075 030F
+0216=0055 0311
+0217=0075 0311
+0218=0053 0326
+0219=0073 0326
+021A=0054 0326
+021B=0074 0326
+021E=0048 030C
+021F=0068 030C
+0226=0041 0307
+0227=0061 0307
+0228=0045 0327
+0229=0065 0327
+022A=00D6 0304
+022B=00F6 0304
+022C=00D5 0304
+022D=00F5 0304
+022E=004F 0307
+022F=006F 0307
+0230=022E 0304
+0231=022F 0304
+0232=0059 0304
+0233=0079 0304
+02B0>0068
+02B1>0266
+02B2>006A
+02B3>0072
+02B4>0279
+02B5>027B
+02B6>0281
+02B7>0077
+02B8>0079
+02D8>0020 0306
+02D9>0020 0307
+02DA>0020 030A
+02DB>0020 0328
+02DC>0020 0303
+02DD>0020 030B
+02E0>0263
+02E1>006C
+02E2>0073
+02E3>0078
+02E4>0295
+0340>0300
+0341>0301
+0343>0313
+0344>0308 0301
+0374>02B9
+037A>0020 0345
+037E>003B
+0384>0020 0301
+0385>00A8 0301
+0386=0391 0301
+0387>00B7
+0388=0395 0301
+0389=0397 0301
+038A=0399 0301
+038C=039F 0301
+038E=03A5 0301
+038F=03A9 0301
+0390=03CA 0301
+03AA=0399 0308
+03AB=03A5 0308
+03AC=03B1 0301
+03AD=03B5 0301
+03AE=03B7 0301
+03AF=03B9 0301
+03B0=03CB 0301
+03CA=03B9 0308
+03CB=03C5 0308
+03CC=03BF 0301
+03CD=03C5 0301
+03CE=03C9 0301
+03D0>03B2
+03D1>03B8
+03D2>03A5
+03D3>03D2 0301
+03D4>03D2 0308
+03D5>03C6
+03D6>03C0
+03F0>03BA
+03F1>03C1
+03F2>03C2
+03F4>0398
+03F5>03B5
+03F9>03A3
+0400=0415 0300
+0401=0415 0308
+0403=0413 0301
+0407=0406 0308
+040C=041A 0301
+040D=0418 0300
+040E=0423 0306
+0419=0418 0306
+0439=0438 0306
+0450=0435 0300
+0451=0435 0308
+0453=0433 0301
+0457=0456 0308
+045C=043A 0301
+045D=0438 0300
+045E=0443 0306
+0476=0474 030F
+0477=0475 030F
+04C1=0416 0306
+04C2=0436 0306
+04D0=0410 0306
+04D1=0430 0306
+04D2=0410 0308
+04D3=0430 0308
+04D6=0415 0306
+04D7=0435 0306
+04DA=04D8 0308
+04DB=04D9 0308
+04DC=0416 0308
+04DD=0436 0308
+04DE=0417 0308
+04DF=0437 0308
+04E2=0418 0304
+04E3=0438 0304
+04E4=0418 0308
+04E5=0438 0308
+04E6=041E 0308
+04E7=043E 0308
+04EA=04E8 0308
+04EB=04E9 0308
+04EC=042D 0308
+04ED=044D 0308
+04EE=0423 0304
+04EF=0443 0304
+04F0=0423 0308
+04F1=0443 0308
+04F2=0423 030B
+04F3=0443 030B
+04F4=0427 0308
+04F5=0447 0308
+04F8=042B 0308
+04F9=044B 0308
+0587>0565 0582
+0622=0627 0653
+0623=0627 0654
+0624=0648 0654
+0625=0627 0655
+0626=064A 0654
+0675>0627 0674
+0676>0648 0674
+0677>06C7 0674
+0678>064A 0674
+06C0=06D5 0654
+06C2=06C1 0654
+06D3=06D2 0654
+0929=0928 093C
+0931=0930 093C
+0934=0933 093C
+0958>0915 093C
+0959>0916 093C
+095A>0917 093C
+095B>091C 093C
+095C>0921 093C
+095D>0922 093C
+095E>092B 093C
+095F>092F 093C
+09CB=09C7 09BE
+09CC=09C7 09D7
+09DC>09A1 09BC
+09DD>09A2 09BC
+09DF>09AF 09BC
+0A33>0A32 0A3C
+0A36>0A38 0A3C
+0A59>0A16 0A3C
+0A5A>0A17 0A3C
+0A5B>0A1C 0A3C
+0A5E>0A2B 0A3C
+0B48=0B47 0B56
+0B4B=0B47 0B3E
+0B4C=0B47 0B57
+0B5C>0B21 0B3C
+0B5D>0B22 0B3C
+0B94=0B92 0BD7
+0BCA=0BC6 0BBE
+0BCB=0BC7 0BBE
+0BCC=0BC6 0BD7
+0C48=0C46 0C56
+0CC0=0CBF 0CD5
+0CC7=0CC6 0CD5
+0CC8=0CC6 0CD6
+0CCA=0CC6 0CC2
+0CCB=0CCA 0CD5
+0D4A=0D46 0D3E
+0D4B=0D47 0D3E
+0D4C=0D46 0D57
+0DDA=0DD9 0DCA
+0DDC=0DD9 0DCF
+0DDD=0DDC 0DCA
+0DDE=0DD9 0DDF
+0E33>0E4D 0E32
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diff --git a/mailnews/extensions/fts3/data/nfkc_cf.txt b/mailnews/extensions/fts3/data/nfkc_cf.txt
new file mode 100644
index 000000000..becabbbf3
--- /dev/null
+++ b/mailnews/extensions/fts3/data/nfkc_cf.txt
@@ -0,0 +1,5376 @@
+# Extracted from:
+# DerivedNormalizationProps-5.2.0.txt
+# Date: 2009-08-26, 18:18:50 GMT [MD]
+#
+# Unicode Character Database
+# Copyright (c) 1991-2009 Unicode, Inc.
+# For terms of use, see http://www.unicode.org/terms_of_use.html
+# For documentation, see http://www.unicode.org/reports/tr44/
+
+# ================================================
+# This file has been reformatted into syntax for the
+# gennorm2 Normalizer2 data generator tool.
+# Only the NFKC_CF mappings are retained and reformatted.
+# Reformatting via regular expression: s/ *; NFKC_CF; */>/
+# Use this file as the second gennorm2 input file after nfkc.txt.
+# ================================================
+
+# Derived Property:   NFKC_Casefold (NFKC_CF)
+#   This property removes certain variations from characters: case, compatibility, and default-ignorables.
+#   It is used for loose matching and certain types of identifiers.
+#   It is constructed by applying NFKC, CaseFolding, and removal of Default_Ignorable_Code_Points.
+#   The process of applying these transformations is repeated until a stable result is produced.
+#   WARNING: Application to STRINGS must apply NFC after mapping each character, because characters may interact.
+#            For more information, see [http://www.unicode.org/reports/tr44/]
+# Omitted code points are unchanged by this mapping.
+# @missing: 0000..10FFFF><code point>
+
+#  All code points not explicitly listed for NFKC_Casefold
+#  have the value <codepoint>.
+
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+2F9DC>8DF0
+2F9DD>208DE
+2F9DE>8ED4
+2F9DF>8F38
+2F9E0>285D2
+2F9E1>285ED
+2F9E2>9094
+2F9E3>90F1
+2F9E4>9111
+2F9E5>2872E
+2F9E6>911B
+2F9E7>9238
+2F9E8>92D7
+2F9E9>92D8
+2F9EA>927C
+2F9EB>93F9
+2F9EC>9415
+2F9ED>28BFA
+2F9EE>958B
+2F9EF>4995
+2F9F0>95B7
+2F9F1>28D77
+2F9F2>49E6
+2F9F3>96C3
+2F9F4>5DB2
+2F9F5>9723
+2F9F6>29145
+2F9F7>2921A
+2F9F8>4A6E
+2F9F9>4A76
+2F9FA>97E0
+2F9FB>2940A
+2F9FC>4AB2
+2F9FD>29496
+2F9FE..2F9FF>980B
+2FA00>9829
+2FA01>295B6
+2FA02>98E2
+2FA03>4B33
+2FA04>9929
+2FA05>99A7
+2FA06>99C2
+2FA07>99FE
+2FA08>4BCE
+2FA09>29B30
+2FA0A>9B12
+2FA0B>9C40
+2FA0C>9CFD
+2FA0D>4CCE
+2FA0E>4CED
+2FA0F>9D67
+2FA10>2A0CE
+2FA11>4CF8
+2FA12>2A105
+2FA13>2A20E
+2FA14>2A291
+2FA15>9EBB
+2FA16>4D56
+2FA17>9EF9
+2FA18>9EFE
+2FA19>9F05
+2FA1A>9F0F
+2FA1B>9F16
+2FA1C>9F3B
+2FA1D>2A600
+E0000>
+E0001>
+E0002..E001F>
+E0020..E007F>
+E0080..E00FF>
+E0100..E01EF>
+E01F0..E0FFF>
+
+# Total code points: 9740
diff --git a/mailnews/extensions/fts3/public/moz.build b/mailnews/extensions/fts3/public/moz.build
new file mode 100644
index 000000000..9d38f0177
--- /dev/null
+++ b/mailnews/extensions/fts3/public/moz.build
@@ -0,0 +1,11 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+XPIDL_SOURCES += [
+    'nsIFts3Tokenizer.idl',
+]
+
+XPIDL_MODULE = 'fts3tok'
+
diff --git a/mailnews/extensions/fts3/public/nsIFts3Tokenizer.idl b/mailnews/extensions/fts3/public/nsIFts3Tokenizer.idl
new file mode 100644
index 000000000..c2bb7d435
--- /dev/null
+++ b/mailnews/extensions/fts3/public/nsIFts3Tokenizer.idl
@@ -0,0 +1,15 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface mozIStorageConnection;
+
+[scriptable, uuid(136c88ea-7003-4fe8-8835-333fd18e598c)]
+interface nsIFts3Tokenizer : nsISupports {
+    // register FTS3 tokenizer module for "mozporter" tokenizer
+    // mozporter is based by porter tokenizer with bi-gram tokenizer for CJK
+    void registerTokenizer(in mozIStorageConnection connection);
+};
diff --git a/mailnews/extensions/fts3/src/Normalize.c b/mailnews/extensions/fts3/src/Normalize.c
new file mode 100644
index 000000000..92ac400e2
--- /dev/null
+++ b/mailnews/extensions/fts3/src/Normalize.c
@@ -0,0 +1,1929 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* THIS FILE IS GENERATED BY generate_table.py.  DON'T EDIT THIS */
+
+static const unsigned short gNormalizeTable0040[] = {
+	/* U+0040 */
+	0x0040, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 
+	0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, 
+	0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 
+	0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f, 
+	};
+
+static const unsigned short gNormalizeTable0080[] = {
+	/* U+0080 */
+	0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, 
+	0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f, 
+	0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, 
+	0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f, 
+	0x0020, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, 
+	0x0020, 0x00a9, 0x0061, 0x00ab, 0x00ac, 0x0020, 0x00ae, 0x0020, 
+	0x00b0, 0x00b1, 0x0032, 0x0033, 0x0020, 0x03bc, 0x00b6, 0x00b7, 
+	0x0020, 0x0031, 0x006f, 0x00bb, 0x0031, 0x0031, 0x0033, 0x00bf, 
+	};
+
+static const unsigned short gNormalizeTable00c0[] = {
+	/* U+00c0 */
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x00e6, 0x0063, 
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0069, 0x0069, 0x0069, 0x0069, 
+	0x00f0, 0x006e, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x00d7, 
+	0x00f8, 0x0075, 0x0075, 0x0075, 0x0075, 0x0079, 0x00fe, 0x0073, 
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x00e6, 0x0063, 
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0069, 0x0069, 0x0069, 0x0069, 
+	0x00f0, 0x006e, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x00f7, 
+	0x00f8, 0x0075, 0x0075, 0x0075, 0x0075, 0x0079, 0x00fe, 0x0079, 
+	};
+
+static const unsigned short gNormalizeTable0100[] = {
+	/* U+0100 */
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0063, 0x0063, 
+	0x0063, 0x0063, 0x0063, 0x0063, 0x0063, 0x0063, 0x0064, 0x0064, 
+	0x0111, 0x0111, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0067, 0x0067, 0x0067, 0x0067, 
+	0x0067, 0x0067, 0x0067, 0x0067, 0x0068, 0x0068, 0x0127, 0x0127, 
+	0x0069, 0x0069, 0x0069, 0x0069, 0x0069, 0x0069, 0x0069, 0x0069, 
+	0x0069, 0x0131, 0x0069, 0x0069, 0x006a, 0x006a, 0x006b, 0x006b, 
+	0x0138, 0x006c, 0x006c, 0x006c, 0x006c, 0x006c, 0x006c, 0x006c, 
+	};
+
+static const unsigned short gNormalizeTable0140[] = {
+	/* U+0140 */
+	0x006c, 0x0142, 0x0142, 0x006e, 0x006e, 0x006e, 0x006e, 0x006e, 
+	0x006e, 0x02bc, 0x014b, 0x014b, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x0153, 0x0153, 0x0072, 0x0072, 0x0072, 0x0072, 
+	0x0072, 0x0072, 0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 
+	0x0073, 0x0073, 0x0074, 0x0074, 0x0074, 0x0074, 0x0167, 0x0167, 
+	0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0075, 0x0075, 0x0075, 0x0075, 0x0077, 0x0077, 0x0079, 0x0079, 
+	0x0079, 0x007a, 0x007a, 0x007a, 0x007a, 0x007a, 0x007a, 0x0073, 
+	};
+
+static const unsigned short gNormalizeTable0180[] = {
+	/* U+0180 */
+	0x0180, 0x0253, 0x0183, 0x0183, 0x0185, 0x0185, 0x0254, 0x0188, 
+	0x0188, 0x0256, 0x0257, 0x018c, 0x018c, 0x018d, 0x01dd, 0x0259, 
+	0x025b, 0x0192, 0x0192, 0x0260, 0x0263, 0x0195, 0x0269, 0x0268, 
+	0x0199, 0x0199, 0x019a, 0x019b, 0x026f, 0x0272, 0x019e, 0x0275, 
+	0x006f, 0x006f, 0x01a3, 0x01a3, 0x01a5, 0x01a5, 0x0280, 0x01a8, 
+	0x01a8, 0x0283, 0x01aa, 0x01ab, 0x01ad, 0x01ad, 0x0288, 0x0075, 
+	0x0075, 0x028a, 0x028b, 0x01b4, 0x01b4, 0x01b6, 0x01b6, 0x0292, 
+	0x01b9, 0x01b9, 0x01ba, 0x01bb, 0x01bd, 0x01bd, 0x01be, 0x01bf, 
+	};
+
+static const unsigned short gNormalizeTable01c0[] = {
+	/* U+01c0 */
+	0x01c0, 0x01c1, 0x01c2, 0x01c3, 0x0064, 0x0064, 0x0064, 0x006c, 
+	0x006c, 0x006c, 0x006e, 0x006e, 0x006e, 0x0061, 0x0061, 0x0069, 
+	0x0069, 0x006f, 0x006f, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x01dd, 0x0061, 0x0061, 
+	0x0061, 0x0061, 0x00e6, 0x00e6, 0x01e5, 0x01e5, 0x0067, 0x0067, 
+	0x006b, 0x006b, 0x006f, 0x006f, 0x006f, 0x006f, 0x0292, 0x0292, 
+	0x006a, 0x0064, 0x0064, 0x0064, 0x0067, 0x0067, 0x0195, 0x01bf, 
+	0x006e, 0x006e, 0x0061, 0x0061, 0x00e6, 0x00e6, 0x00f8, 0x00f8, 
+	};
+
+static const unsigned short gNormalizeTable0200[] = {
+	/* U+0200 */
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0065, 0x0065, 0x0065, 0x0065, 
+	0x0069, 0x0069, 0x0069, 0x0069, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x0072, 0x0072, 0x0072, 0x0072, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0073, 0x0073, 0x0074, 0x0074, 0x021d, 0x021d, 0x0068, 0x0068, 
+	0x019e, 0x0221, 0x0223, 0x0223, 0x0225, 0x0225, 0x0061, 0x0061, 
+	0x0065, 0x0065, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x0079, 0x0079, 0x0234, 0x0235, 0x0236, 0x0237, 
+	0x0238, 0x0239, 0x2c65, 0x023c, 0x023c, 0x019a, 0x2c66, 0x023f, 
+	};
+
+static const unsigned short gNormalizeTable0240[] = {
+	/* U+0240 */
+	0x0240, 0x0242, 0x0242, 0x0180, 0x0289, 0x028c, 0x0247, 0x0247, 
+	0x0249, 0x0249, 0x024b, 0x024b, 0x024d, 0x024d, 0x024f, 0x024f, 
+	0x0250, 0x0251, 0x0252, 0x0253, 0x0254, 0x0255, 0x0256, 0x0257, 
+	0x0258, 0x0259, 0x025a, 0x025b, 0x025c, 0x025d, 0x025e, 0x025f, 
+	0x0260, 0x0261, 0x0262, 0x0263, 0x0264, 0x0265, 0x0266, 0x0267, 
+	0x0268, 0x0269, 0x026a, 0x026b, 0x026c, 0x026d, 0x026e, 0x026f, 
+	0x0270, 0x0271, 0x0272, 0x0273, 0x0274, 0x0275, 0x0276, 0x0277, 
+	0x0278, 0x0279, 0x027a, 0x027b, 0x027c, 0x027d, 0x027e, 0x027f, 
+	};
+
+static const unsigned short gNormalizeTable0280[] = {
+	/* U+0280 */
+	0x0280, 0x0281, 0x0282, 0x0283, 0x0284, 0x0285, 0x0286, 0x0287, 
+	0x0288, 0x0289, 0x028a, 0x028b, 0x028c, 0x028d, 0x028e, 0x028f, 
+	0x0290, 0x0291, 0x0292, 0x0293, 0x0294, 0x0295, 0x0296, 0x0297, 
+	0x0298, 0x0299, 0x029a, 0x029b, 0x029c, 0x029d, 0x029e, 0x029f, 
+	0x02a0, 0x02a1, 0x02a2, 0x02a3, 0x02a4, 0x02a5, 0x02a6, 0x02a7, 
+	0x02a8, 0x02a9, 0x02aa, 0x02ab, 0x02ac, 0x02ad, 0x02ae, 0x02af, 
+	0x0068, 0x0266, 0x006a, 0x0072, 0x0279, 0x027b, 0x0281, 0x0077, 
+	0x0079, 0x02b9, 0x02ba, 0x02bb, 0x02bc, 0x02bd, 0x02be, 0x02bf, 
+	};
+
+static const unsigned short gNormalizeTable02c0[] = {
+	/* U+02c0 */
+	0x02c0, 0x02c1, 0x02c2, 0x02c3, 0x02c4, 0x02c5, 0x02c6, 0x02c7, 
+	0x02c8, 0x02c9, 0x02ca, 0x02cb, 0x02cc, 0x02cd, 0x02ce, 0x02cf, 
+	0x02d0, 0x02d1, 0x02d2, 0x02d3, 0x02d4, 0x02d5, 0x02d6, 0x02d7, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x02de, 0x02df, 
+	0x0263, 0x006c, 0x0073, 0x0078, 0x0295, 0x02e5, 0x02e6, 0x02e7, 
+	0x02e8, 0x02e9, 0x02ea, 0x02eb, 0x02ec, 0x02ed, 0x02ee, 0x02ef, 
+	0x02f0, 0x02f1, 0x02f2, 0x02f3, 0x02f4, 0x02f5, 0x02f6, 0x02f7, 
+	0x02f8, 0x02f9, 0x02fa, 0x02fb, 0x02fc, 0x02fd, 0x02fe, 0x02ff, 
+	};
+
+static const unsigned short gNormalizeTable0340[] = {
+	/* U+0340 */
+	0x0300, 0x0301, 0x0342, 0x0313, 0x0308, 0x03b9, 0x0346, 0x0347, 
+	0x0348, 0x0349, 0x034a, 0x034b, 0x034c, 0x034d, 0x034e, 0x0020, 
+	0x0350, 0x0351, 0x0352, 0x0353, 0x0354, 0x0355, 0x0356, 0x0357, 
+	0x0358, 0x0359, 0x035a, 0x035b, 0x035c, 0x035d, 0x035e, 0x035f, 
+	0x0360, 0x0361, 0x0362, 0x0363, 0x0364, 0x0365, 0x0366, 0x0367, 
+	0x0368, 0x0369, 0x036a, 0x036b, 0x036c, 0x036d, 0x036e, 0x036f, 
+	0x0371, 0x0371, 0x0373, 0x0373, 0x02b9, 0x0375, 0x0377, 0x0377, 
+	0x0378, 0x0379, 0x0020, 0x037b, 0x037c, 0x037d, 0x003b, 0x037f, 
+	};
+
+static const unsigned short gNormalizeTable0380[] = {
+	/* U+0380 */
+	0x0380, 0x0381, 0x0382, 0x0383, 0x0020, 0x0020, 0x03b1, 0x00b7, 
+	0x03b5, 0x03b7, 0x03b9, 0x038b, 0x03bf, 0x038d, 0x03c5, 0x03c9, 
+	0x03b9, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7, 
+	0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf, 
+	0x03c0, 0x03c1, 0x03a2, 0x03c3, 0x03c4, 0x03c5, 0x03c6, 0x03c7, 
+	0x03c8, 0x03c9, 0x03b9, 0x03c5, 0x03b1, 0x03b5, 0x03b7, 0x03b9, 
+	0x03c5, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7, 
+	0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf, 
+	};
+
+static const unsigned short gNormalizeTable03c0[] = {
+	/* U+03c0 */
+	0x03c0, 0x03c1, 0x03c3, 0x03c3, 0x03c4, 0x03c5, 0x03c6, 0x03c7, 
+	0x03c8, 0x03c9, 0x03b9, 0x03c5, 0x03bf, 0x03c5, 0x03c9, 0x03d7, 
+	0x03b2, 0x03b8, 0x03c5, 0x03c5, 0x03c5, 0x03c6, 0x03c0, 0x03d7, 
+	0x03d9, 0x03d9, 0x03db, 0x03db, 0x03dd, 0x03dd, 0x03df, 0x03df, 
+	0x03e1, 0x03e1, 0x03e3, 0x03e3, 0x03e5, 0x03e5, 0x03e7, 0x03e7, 
+	0x03e9, 0x03e9, 0x03eb, 0x03eb, 0x03ed, 0x03ed, 0x03ef, 0x03ef, 
+	0x03ba, 0x03c1, 0x03c3, 0x03f3, 0x03b8, 0x03b5, 0x03f6, 0x03f8, 
+	0x03f8, 0x03c3, 0x03fb, 0x03fb, 0x03fc, 0x037b, 0x037c, 0x037d, 
+	};
+
+static const unsigned short gNormalizeTable0400[] = {
+	/* U+0400 */
+	0x0435, 0x0435, 0x0452, 0x0433, 0x0454, 0x0455, 0x0456, 0x0456, 
+	0x0458, 0x0459, 0x045a, 0x045b, 0x043a, 0x0438, 0x0443, 0x045f, 
+	0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 
+	0x0438, 0x0438, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e, 0x043f, 
+	0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 
+	0x0448, 0x0449, 0x044a, 0x044b, 0x044c, 0x044d, 0x044e, 0x044f, 
+	0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 
+	0x0438, 0x0438, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e, 0x043f, 
+	};
+
+static const unsigned short gNormalizeTable0440[] = {
+	/* U+0440 */
+	0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 
+	0x0448, 0x0449, 0x044a, 0x044b, 0x044c, 0x044d, 0x044e, 0x044f, 
+	0x0435, 0x0435, 0x0452, 0x0433, 0x0454, 0x0455, 0x0456, 0x0456, 
+	0x0458, 0x0459, 0x045a, 0x045b, 0x043a, 0x0438, 0x0443, 0x045f, 
+	0x0461, 0x0461, 0x0463, 0x0463, 0x0465, 0x0465, 0x0467, 0x0467, 
+	0x0469, 0x0469, 0x046b, 0x046b, 0x046d, 0x046d, 0x046f, 0x046f, 
+	0x0471, 0x0471, 0x0473, 0x0473, 0x0475, 0x0475, 0x0475, 0x0475, 
+	0x0479, 0x0479, 0x047b, 0x047b, 0x047d, 0x047d, 0x047f, 0x047f, 
+	};
+
+static const unsigned short gNormalizeTable0480[] = {
+	/* U+0480 */
+	0x0481, 0x0481, 0x0482, 0x0483, 0x0484, 0x0485, 0x0486, 0x0487, 
+	0x0488, 0x0489, 0x048b, 0x048b, 0x048d, 0x048d, 0x048f, 0x048f, 
+	0x0491, 0x0491, 0x0493, 0x0493, 0x0495, 0x0495, 0x0497, 0x0497, 
+	0x0499, 0x0499, 0x049b, 0x049b, 0x049d, 0x049d, 0x049f, 0x049f, 
+	0x04a1, 0x04a1, 0x04a3, 0x04a3, 0x04a5, 0x04a5, 0x04a7, 0x04a7, 
+	0x04a9, 0x04a9, 0x04ab, 0x04ab, 0x04ad, 0x04ad, 0x04af, 0x04af, 
+	0x04b1, 0x04b1, 0x04b3, 0x04b3, 0x04b5, 0x04b5, 0x04b7, 0x04b7, 
+	0x04b9, 0x04b9, 0x04bb, 0x04bb, 0x04bd, 0x04bd, 0x04bf, 0x04bf, 
+	};
+
+static const unsigned short gNormalizeTable04c0[] = {
+	/* U+04c0 */
+	0x04cf, 0x0436, 0x0436, 0x04c4, 0x04c4, 0x04c6, 0x04c6, 0x04c8, 
+	0x04c8, 0x04ca, 0x04ca, 0x04cc, 0x04cc, 0x04ce, 0x04ce, 0x04cf, 
+	0x0430, 0x0430, 0x0430, 0x0430, 0x04d5, 0x04d5, 0x0435, 0x0435, 
+	0x04d9, 0x04d9, 0x04d9, 0x04d9, 0x0436, 0x0436, 0x0437, 0x0437, 
+	0x04e1, 0x04e1, 0x0438, 0x0438, 0x0438, 0x0438, 0x043e, 0x043e, 
+	0x04e9, 0x04e9, 0x04e9, 0x04e9, 0x044d, 0x044d, 0x0443, 0x0443, 
+	0x0443, 0x0443, 0x0443, 0x0443, 0x0447, 0x0447, 0x04f7, 0x04f7, 
+	0x044b, 0x044b, 0x04fb, 0x04fb, 0x04fd, 0x04fd, 0x04ff, 0x04ff, 
+	};
+
+static const unsigned short gNormalizeTable0500[] = {
+	/* U+0500 */
+	0x0501, 0x0501, 0x0503, 0x0503, 0x0505, 0x0505, 0x0507, 0x0507, 
+	0x0509, 0x0509, 0x050b, 0x050b, 0x050d, 0x050d, 0x050f, 0x050f, 
+	0x0511, 0x0511, 0x0513, 0x0513, 0x0515, 0x0515, 0x0517, 0x0517, 
+	0x0519, 0x0519, 0x051b, 0x051b, 0x051d, 0x051d, 0x051f, 0x051f, 
+	0x0521, 0x0521, 0x0523, 0x0523, 0x0525, 0x0525, 0x0526, 0x0527, 
+	0x0528, 0x0529, 0x052a, 0x052b, 0x052c, 0x052d, 0x052e, 0x052f, 
+	0x0530, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567, 
+	0x0568, 0x0569, 0x056a, 0x056b, 0x056c, 0x056d, 0x056e, 0x056f, 
+	};
+
+static const unsigned short gNormalizeTable0540[] = {
+	/* U+0540 */
+	0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577, 
+	0x0578, 0x0579, 0x057a, 0x057b, 0x057c, 0x057d, 0x057e, 0x057f, 
+	0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0557, 
+	0x0558, 0x0559, 0x055a, 0x055b, 0x055c, 0x055d, 0x055e, 0x055f, 
+	0x0560, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567, 
+	0x0568, 0x0569, 0x056a, 0x056b, 0x056c, 0x056d, 0x056e, 0x056f, 
+	0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577, 
+	0x0578, 0x0579, 0x057a, 0x057b, 0x057c, 0x057d, 0x057e, 0x057f, 
+	};
+
+static const unsigned short gNormalizeTable0580[] = {
+	/* U+0580 */
+	0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0565, 
+	0x0588, 0x0589, 0x058a, 0x058b, 0x058c, 0x058d, 0x058e, 0x058f, 
+	0x0590, 0x0591, 0x0592, 0x0593, 0x0594, 0x0595, 0x0596, 0x0597, 
+	0x0598, 0x0599, 0x059a, 0x059b, 0x059c, 0x059d, 0x059e, 0x059f, 
+	0x05a0, 0x05a1, 0x05a2, 0x05a3, 0x05a4, 0x05a5, 0x05a6, 0x05a7, 
+	0x05a8, 0x05a9, 0x05aa, 0x05ab, 0x05ac, 0x05ad, 0x05ae, 0x05af, 
+	0x05b0, 0x05b1, 0x05b2, 0x05b3, 0x05b4, 0x05b5, 0x05b6, 0x05b7, 
+	0x05b8, 0x05b9, 0x05ba, 0x05bb, 0x05bc, 0x05bd, 0x05be, 0x05bf, 
+	};
+
+static const unsigned short gNormalizeTable0600[] = {
+	/* U+0600 */
+	0x0600, 0x0601, 0x0602, 0x0603, 0x0604, 0x0605, 0x0606, 0x0607, 
+	0x0608, 0x0609, 0x060a, 0x060b, 0x060c, 0x060d, 0x060e, 0x060f, 
+	0x0610, 0x0611, 0x0612, 0x0613, 0x0614, 0x0615, 0x0616, 0x0617, 
+	0x0618, 0x0619, 0x061a, 0x061b, 0x061c, 0x061d, 0x061e, 0x061f, 
+	0x0620, 0x0621, 0x0627, 0x0627, 0x0648, 0x0627, 0x064a, 0x0627, 
+	0x0628, 0x0629, 0x062a, 0x062b, 0x062c, 0x062d, 0x062e, 0x062f, 
+	0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x0637, 
+	0x0638, 0x0639, 0x063a, 0x063b, 0x063c, 0x063d, 0x063e, 0x063f, 
+	};
+
+static const unsigned short gNormalizeTable0640[] = {
+	/* U+0640 */
+	0x0640, 0x0641, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647, 
+	0x0648, 0x0649, 0x064a, 0x064b, 0x064c, 0x064d, 0x064e, 0x064f, 
+	0x0650, 0x0651, 0x0652, 0x0653, 0x0654, 0x0655, 0x0656, 0x0657, 
+	0x0658, 0x0659, 0x065a, 0x065b, 0x065c, 0x065d, 0x065e, 0x065f, 
+	0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666, 0x0667, 
+	0x0668, 0x0669, 0x066a, 0x066b, 0x066c, 0x066d, 0x066e, 0x066f, 
+	0x0670, 0x0671, 0x0672, 0x0673, 0x0674, 0x0627, 0x0648, 0x06c7, 
+	0x064a, 0x0679, 0x067a, 0x067b, 0x067c, 0x067d, 0x067e, 0x067f, 
+	};
+
+static const unsigned short gNormalizeTable06c0[] = {
+	/* U+06c0 */
+	0x06d5, 0x06c1, 0x06c1, 0x06c3, 0x06c4, 0x06c5, 0x06c6, 0x06c7, 
+	0x06c8, 0x06c9, 0x06ca, 0x06cb, 0x06cc, 0x06cd, 0x06ce, 0x06cf, 
+	0x06d0, 0x06d1, 0x06d2, 0x06d2, 0x06d4, 0x06d5, 0x06d6, 0x06d7, 
+	0x06d8, 0x06d9, 0x06da, 0x06db, 0x06dc, 0x06dd, 0x06de, 0x06df, 
+	0x06e0, 0x06e1, 0x06e2, 0x06e3, 0x06e4, 0x06e5, 0x06e6, 0x06e7, 
+	0x06e8, 0x06e9, 0x06ea, 0x06eb, 0x06ec, 0x06ed, 0x06ee, 0x06ef, 
+	0x06f0, 0x06f1, 0x06f2, 0x06f3, 0x06f4, 0x06f5, 0x06f6, 0x06f7, 
+	0x06f8, 0x06f9, 0x06fa, 0x06fb, 0x06fc, 0x06fd, 0x06fe, 0x06ff, 
+	};
+
+static const unsigned short gNormalizeTable0900[] = {
+	/* U+0900 */
+	0x0900, 0x0901, 0x0902, 0x0903, 0x0904, 0x0905, 0x0906, 0x0907, 
+	0x0908, 0x0909, 0x090a, 0x090b, 0x090c, 0x090d, 0x090e, 0x090f, 
+	0x0910, 0x0911, 0x0912, 0x0913, 0x0914, 0x0915, 0x0916, 0x0917, 
+	0x0918, 0x0919, 0x091a, 0x091b, 0x091c, 0x091d, 0x091e, 0x091f, 
+	0x0920, 0x0921, 0x0922, 0x0923, 0x0924, 0x0925, 0x0926, 0x0927, 
+	0x0928, 0x0928, 0x092a, 0x092b, 0x092c, 0x092d, 0x092e, 0x092f, 
+	0x0930, 0x0930, 0x0932, 0x0933, 0x0933, 0x0935, 0x0936, 0x0937, 
+	0x0938, 0x0939, 0x093a, 0x093b, 0x093c, 0x093d, 0x093e, 0x093f, 
+	};
+
+static const unsigned short gNormalizeTable0940[] = {
+	/* U+0940 */
+	0x0940, 0x0941, 0x0942, 0x0943, 0x0944, 0x0945, 0x0946, 0x0947, 
+	0x0948, 0x0949, 0x094a, 0x094b, 0x094c, 0x094d, 0x094e, 0x094f, 
+	0x0950, 0x0951, 0x0952, 0x0953, 0x0954, 0x0955, 0x0956, 0x0957, 
+	0x0915, 0x0916, 0x0917, 0x091c, 0x0921, 0x0922, 0x092b, 0x092f, 
+	0x0960, 0x0961, 0x0962, 0x0963, 0x0964, 0x0965, 0x0966, 0x0967, 
+	0x0968, 0x0969, 0x096a, 0x096b, 0x096c, 0x096d, 0x096e, 0x096f, 
+	0x0970, 0x0971, 0x0972, 0x0973, 0x0974, 0x0975, 0x0976, 0x0977, 
+	0x0978, 0x0979, 0x097a, 0x097b, 0x097c, 0x097d, 0x097e, 0x097f, 
+	};
+
+static const unsigned short gNormalizeTable09c0[] = {
+	/* U+09c0 */
+	0x09c0, 0x09c1, 0x09c2, 0x09c3, 0x09c4, 0x09c5, 0x09c6, 0x09c7, 
+	0x09c8, 0x09c9, 0x09ca, 0x09c7, 0x09c7, 0x09cd, 0x09ce, 0x09cf, 
+	0x09d0, 0x09d1, 0x09d2, 0x09d3, 0x09d4, 0x09d5, 0x09d6, 0x09d7, 
+	0x09d8, 0x09d9, 0x09da, 0x09db, 0x09a1, 0x09a2, 0x09de, 0x09af, 
+	0x09e0, 0x09e1, 0x09e2, 0x09e3, 0x09e4, 0x09e5, 0x09e6, 0x09e7, 
+	0x09e8, 0x09e9, 0x09ea, 0x09eb, 0x09ec, 0x09ed, 0x09ee, 0x09ef, 
+	0x09f0, 0x09f1, 0x09f2, 0x09f3, 0x09f4, 0x09f5, 0x09f6, 0x09f7, 
+	0x09f8, 0x09f9, 0x09fa, 0x09fb, 0x09fc, 0x09fd, 0x09fe, 0x09ff, 
+	};
+
+static const unsigned short gNormalizeTable0a00[] = {
+	/* U+0a00 */
+	0x0a00, 0x0a01, 0x0a02, 0x0a03, 0x0a04, 0x0a05, 0x0a06, 0x0a07, 
+	0x0a08, 0x0a09, 0x0a0a, 0x0a0b, 0x0a0c, 0x0a0d, 0x0a0e, 0x0a0f, 
+	0x0a10, 0x0a11, 0x0a12, 0x0a13, 0x0a14, 0x0a15, 0x0a16, 0x0a17, 
+	0x0a18, 0x0a19, 0x0a1a, 0x0a1b, 0x0a1c, 0x0a1d, 0x0a1e, 0x0a1f, 
+	0x0a20, 0x0a21, 0x0a22, 0x0a23, 0x0a24, 0x0a25, 0x0a26, 0x0a27, 
+	0x0a28, 0x0a29, 0x0a2a, 0x0a2b, 0x0a2c, 0x0a2d, 0x0a2e, 0x0a2f, 
+	0x0a30, 0x0a31, 0x0a32, 0x0a32, 0x0a34, 0x0a35, 0x0a38, 0x0a37, 
+	0x0a38, 0x0a39, 0x0a3a, 0x0a3b, 0x0a3c, 0x0a3d, 0x0a3e, 0x0a3f, 
+	};
+
+static const unsigned short gNormalizeTable0a40[] = {
+	/* U+0a40 */
+	0x0a40, 0x0a41, 0x0a42, 0x0a43, 0x0a44, 0x0a45, 0x0a46, 0x0a47, 
+	0x0a48, 0x0a49, 0x0a4a, 0x0a4b, 0x0a4c, 0x0a4d, 0x0a4e, 0x0a4f, 
+	0x0a50, 0x0a51, 0x0a52, 0x0a53, 0x0a54, 0x0a55, 0x0a56, 0x0a57, 
+	0x0a58, 0x0a16, 0x0a17, 0x0a1c, 0x0a5c, 0x0a5d, 0x0a2b, 0x0a5f, 
+	0x0a60, 0x0a61, 0x0a62, 0x0a63, 0x0a64, 0x0a65, 0x0a66, 0x0a67, 
+	0x0a68, 0x0a69, 0x0a6a, 0x0a6b, 0x0a6c, 0x0a6d, 0x0a6e, 0x0a6f, 
+	0x0a70, 0x0a71, 0x0a72, 0x0a73, 0x0a74, 0x0a75, 0x0a76, 0x0a77, 
+	0x0a78, 0x0a79, 0x0a7a, 0x0a7b, 0x0a7c, 0x0a7d, 0x0a7e, 0x0a7f, 
+	};
+
+static const unsigned short gNormalizeTable0b40[] = {
+	/* U+0b40 */
+	0x0b40, 0x0b41, 0x0b42, 0x0b43, 0x0b44, 0x0b45, 0x0b46, 0x0b47, 
+	0x0b47, 0x0b49, 0x0b4a, 0x0b47, 0x0b47, 0x0b4d, 0x0b4e, 0x0b4f, 
+	0x0b50, 0x0b51, 0x0b52, 0x0b53, 0x0b54, 0x0b55, 0x0b56, 0x0b57, 
+	0x0b58, 0x0b59, 0x0b5a, 0x0b5b, 0x0b21, 0x0b22, 0x0b5e, 0x0b5f, 
+	0x0b60, 0x0b61, 0x0b62, 0x0b63, 0x0b64, 0x0b65, 0x0b66, 0x0b67, 
+	0x0b68, 0x0b69, 0x0b6a, 0x0b6b, 0x0b6c, 0x0b6d, 0x0b6e, 0x0b6f, 
+	0x0b70, 0x0b71, 0x0b72, 0x0b73, 0x0b74, 0x0b75, 0x0b76, 0x0b77, 
+	0x0b78, 0x0b79, 0x0b7a, 0x0b7b, 0x0b7c, 0x0b7d, 0x0b7e, 0x0b7f, 
+	};
+
+static const unsigned short gNormalizeTable0b80[] = {
+	/* U+0b80 */
+	0x0b80, 0x0b81, 0x0b82, 0x0b83, 0x0b84, 0x0b85, 0x0b86, 0x0b87, 
+	0x0b88, 0x0b89, 0x0b8a, 0x0b8b, 0x0b8c, 0x0b8d, 0x0b8e, 0x0b8f, 
+	0x0b90, 0x0b91, 0x0b92, 0x0b93, 0x0b92, 0x0b95, 0x0b96, 0x0b97, 
+	0x0b98, 0x0b99, 0x0b9a, 0x0b9b, 0x0b9c, 0x0b9d, 0x0b9e, 0x0b9f, 
+	0x0ba0, 0x0ba1, 0x0ba2, 0x0ba3, 0x0ba4, 0x0ba5, 0x0ba6, 0x0ba7, 
+	0x0ba8, 0x0ba9, 0x0baa, 0x0bab, 0x0bac, 0x0bad, 0x0bae, 0x0baf, 
+	0x0bb0, 0x0bb1, 0x0bb2, 0x0bb3, 0x0bb4, 0x0bb5, 0x0bb6, 0x0bb7, 
+	0x0bb8, 0x0bb9, 0x0bba, 0x0bbb, 0x0bbc, 0x0bbd, 0x0bbe, 0x0bbf, 
+	};
+
+static const unsigned short gNormalizeTable0bc0[] = {
+	/* U+0bc0 */
+	0x0bc0, 0x0bc1, 0x0bc2, 0x0bc3, 0x0bc4, 0x0bc5, 0x0bc6, 0x0bc7, 
+	0x0bc8, 0x0bc9, 0x0bc6, 0x0bc7, 0x0bc6, 0x0bcd, 0x0bce, 0x0bcf, 
+	0x0bd0, 0x0bd1, 0x0bd2, 0x0bd3, 0x0bd4, 0x0bd5, 0x0bd6, 0x0bd7, 
+	0x0bd8, 0x0bd9, 0x0bda, 0x0bdb, 0x0bdc, 0x0bdd, 0x0bde, 0x0bdf, 
+	0x0be0, 0x0be1, 0x0be2, 0x0be3, 0x0be4, 0x0be5, 0x0be6, 0x0be7, 
+	0x0be8, 0x0be9, 0x0bea, 0x0beb, 0x0bec, 0x0bed, 0x0bee, 0x0bef, 
+	0x0bf0, 0x0bf1, 0x0bf2, 0x0bf3, 0x0bf4, 0x0bf5, 0x0bf6, 0x0bf7, 
+	0x0bf8, 0x0bf9, 0x0bfa, 0x0bfb, 0x0bfc, 0x0bfd, 0x0bfe, 0x0bff, 
+	};
+
+static const unsigned short gNormalizeTable0c40[] = {
+	/* U+0c40 */
+	0x0c40, 0x0c41, 0x0c42, 0x0c43, 0x0c44, 0x0c45, 0x0c46, 0x0c47, 
+	0x0c46, 0x0c49, 0x0c4a, 0x0c4b, 0x0c4c, 0x0c4d, 0x0c4e, 0x0c4f, 
+	0x0c50, 0x0c51, 0x0c52, 0x0c53, 0x0c54, 0x0c55, 0x0c56, 0x0c57, 
+	0x0c58, 0x0c59, 0x0c5a, 0x0c5b, 0x0c5c, 0x0c5d, 0x0c5e, 0x0c5f, 
+	0x0c60, 0x0c61, 0x0c62, 0x0c63, 0x0c64, 0x0c65, 0x0c66, 0x0c67, 
+	0x0c68, 0x0c69, 0x0c6a, 0x0c6b, 0x0c6c, 0x0c6d, 0x0c6e, 0x0c6f, 
+	0x0c70, 0x0c71, 0x0c72, 0x0c73, 0x0c74, 0x0c75, 0x0c76, 0x0c77, 
+	0x0c78, 0x0c79, 0x0c7a, 0x0c7b, 0x0c7c, 0x0c7d, 0x0c7e, 0x0c7f, 
+	};
+
+static const unsigned short gNormalizeTable0cc0[] = {
+	/* U+0cc0 */
+	0x0cbf, 0x0cc1, 0x0cc2, 0x0cc3, 0x0cc4, 0x0cc5, 0x0cc6, 0x0cc6, 
+	0x0cc6, 0x0cc9, 0x0cc6, 0x0cc6, 0x0ccc, 0x0ccd, 0x0cce, 0x0ccf, 
+	0x0cd0, 0x0cd1, 0x0cd2, 0x0cd3, 0x0cd4, 0x0cd5, 0x0cd6, 0x0cd7, 
+	0x0cd8, 0x0cd9, 0x0cda, 0x0cdb, 0x0cdc, 0x0cdd, 0x0cde, 0x0cdf, 
+	0x0ce0, 0x0ce1, 0x0ce2, 0x0ce3, 0x0ce4, 0x0ce5, 0x0ce6, 0x0ce7, 
+	0x0ce8, 0x0ce9, 0x0cea, 0x0ceb, 0x0cec, 0x0ced, 0x0cee, 0x0cef, 
+	0x0cf0, 0x0cf1, 0x0cf2, 0x0cf3, 0x0cf4, 0x0cf5, 0x0cf6, 0x0cf7, 
+	0x0cf8, 0x0cf9, 0x0cfa, 0x0cfb, 0x0cfc, 0x0cfd, 0x0cfe, 0x0cff, 
+	};
+
+static const unsigned short gNormalizeTable0d40[] = {
+	/* U+0d40 */
+	0x0d40, 0x0d41, 0x0d42, 0x0d43, 0x0d44, 0x0d45, 0x0d46, 0x0d47, 
+	0x0d48, 0x0d49, 0x0d46, 0x0d47, 0x0d46, 0x0d4d, 0x0d4e, 0x0d4f, 
+	0x0d50, 0x0d51, 0x0d52, 0x0d53, 0x0d54, 0x0d55, 0x0d56, 0x0d57, 
+	0x0d58, 0x0d59, 0x0d5a, 0x0d5b, 0x0d5c, 0x0d5d, 0x0d5e, 0x0d5f, 
+	0x0d60, 0x0d61, 0x0d62, 0x0d63, 0x0d64, 0x0d65, 0x0d66, 0x0d67, 
+	0x0d68, 0x0d69, 0x0d6a, 0x0d6b, 0x0d6c, 0x0d6d, 0x0d6e, 0x0d6f, 
+	0x0d70, 0x0d71, 0x0d72, 0x0d73, 0x0d74, 0x0d75, 0x0d76, 0x0d77, 
+	0x0d78, 0x0d79, 0x0d7a, 0x0d7b, 0x0d7c, 0x0d7d, 0x0d7e, 0x0d7f, 
+	};
+
+static const unsigned short gNormalizeTable0dc0[] = {
+	/* U+0dc0 */
+	0x0dc0, 0x0dc1, 0x0dc2, 0x0dc3, 0x0dc4, 0x0dc5, 0x0dc6, 0x0dc7, 
+	0x0dc8, 0x0dc9, 0x0dca, 0x0dcb, 0x0dcc, 0x0dcd, 0x0dce, 0x0dcf, 
+	0x0dd0, 0x0dd1, 0x0dd2, 0x0dd3, 0x0dd4, 0x0dd5, 0x0dd6, 0x0dd7, 
+	0x0dd8, 0x0dd9, 0x0dd9, 0x0ddb, 0x0dd9, 0x0dd9, 0x0dd9, 0x0ddf, 
+	0x0de0, 0x0de1, 0x0de2, 0x0de3, 0x0de4, 0x0de5, 0x0de6, 0x0de7, 
+	0x0de8, 0x0de9, 0x0dea, 0x0deb, 0x0dec, 0x0ded, 0x0dee, 0x0def, 
+	0x0df0, 0x0df1, 0x0df2, 0x0df3, 0x0df4, 0x0df5, 0x0df6, 0x0df7, 
+	0x0df8, 0x0df9, 0x0dfa, 0x0dfb, 0x0dfc, 0x0dfd, 0x0dfe, 0x0dff, 
+	};
+
+static const unsigned short gNormalizeTable0e00[] = {
+	/* U+0e00 */
+	0x0e00, 0x0e01, 0x0e02, 0x0e03, 0x0e04, 0x0e05, 0x0e06, 0x0e07, 
+	0x0e08, 0x0e09, 0x0e0a, 0x0e0b, 0x0e0c, 0x0e0d, 0x0e0e, 0x0e0f, 
+	0x0e10, 0x0e11, 0x0e12, 0x0e13, 0x0e14, 0x0e15, 0x0e16, 0x0e17, 
+	0x0e18, 0x0e19, 0x0e1a, 0x0e1b, 0x0e1c, 0x0e1d, 0x0e1e, 0x0e1f, 
+	0x0e20, 0x0e21, 0x0e22, 0x0e23, 0x0e24, 0x0e25, 0x0e26, 0x0e27, 
+	0x0e28, 0x0e29, 0x0e2a, 0x0e2b, 0x0e2c, 0x0e2d, 0x0e2e, 0x0e2f, 
+	0x0e30, 0x0e31, 0x0e32, 0x0e4d, 0x0e34, 0x0e35, 0x0e36, 0x0e37, 
+	0x0e38, 0x0e39, 0x0e3a, 0x0e3b, 0x0e3c, 0x0e3d, 0x0e3e, 0x0e3f, 
+	};
+
+static const unsigned short gNormalizeTable0e80[] = {
+	/* U+0e80 */
+	0x0e80, 0x0e81, 0x0e82, 0x0e83, 0x0e84, 0x0e85, 0x0e86, 0x0e87, 
+	0x0e88, 0x0e89, 0x0e8a, 0x0e8b, 0x0e8c, 0x0e8d, 0x0e8e, 0x0e8f, 
+	0x0e90, 0x0e91, 0x0e92, 0x0e93, 0x0e94, 0x0e95, 0x0e96, 0x0e97, 
+	0x0e98, 0x0e99, 0x0e9a, 0x0e9b, 0x0e9c, 0x0e9d, 0x0e9e, 0x0e9f, 
+	0x0ea0, 0x0ea1, 0x0ea2, 0x0ea3, 0x0ea4, 0x0ea5, 0x0ea6, 0x0ea7, 
+	0x0ea8, 0x0ea9, 0x0eaa, 0x0eab, 0x0eac, 0x0ead, 0x0eae, 0x0eaf, 
+	0x0eb0, 0x0eb1, 0x0eb2, 0x0ecd, 0x0eb4, 0x0eb5, 0x0eb6, 0x0eb7, 
+	0x0eb8, 0x0eb9, 0x0eba, 0x0ebb, 0x0ebc, 0x0ebd, 0x0ebe, 0x0ebf, 
+	};
+
+static const unsigned short gNormalizeTable0ec0[] = {
+	/* U+0ec0 */
+	0x0ec0, 0x0ec1, 0x0ec2, 0x0ec3, 0x0ec4, 0x0ec5, 0x0ec6, 0x0ec7, 
+	0x0ec8, 0x0ec9, 0x0eca, 0x0ecb, 0x0ecc, 0x0ecd, 0x0ece, 0x0ecf, 
+	0x0ed0, 0x0ed1, 0x0ed2, 0x0ed3, 0x0ed4, 0x0ed5, 0x0ed6, 0x0ed7, 
+	0x0ed8, 0x0ed9, 0x0eda, 0x0edb, 0x0eab, 0x0eab, 0x0ede, 0x0edf, 
+	0x0ee0, 0x0ee1, 0x0ee2, 0x0ee3, 0x0ee4, 0x0ee5, 0x0ee6, 0x0ee7, 
+	0x0ee8, 0x0ee9, 0x0eea, 0x0eeb, 0x0eec, 0x0eed, 0x0eee, 0x0eef, 
+	0x0ef0, 0x0ef1, 0x0ef2, 0x0ef3, 0x0ef4, 0x0ef5, 0x0ef6, 0x0ef7, 
+	0x0ef8, 0x0ef9, 0x0efa, 0x0efb, 0x0efc, 0x0efd, 0x0efe, 0x0eff, 
+	};
+
+static const unsigned short gNormalizeTable0f00[] = {
+	/* U+0f00 */
+	0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06, 0x0f07, 
+	0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0b, 0x0f0d, 0x0f0e, 0x0f0f, 
+	0x0f10, 0x0f11, 0x0f12, 0x0f13, 0x0f14, 0x0f15, 0x0f16, 0x0f17, 
+	0x0f18, 0x0f19, 0x0f1a, 0x0f1b, 0x0f1c, 0x0f1d, 0x0f1e, 0x0f1f, 
+	0x0f20, 0x0f21, 0x0f22, 0x0f23, 0x0f24, 0x0f25, 0x0f26, 0x0f27, 
+	0x0f28, 0x0f29, 0x0f2a, 0x0f2b, 0x0f2c, 0x0f2d, 0x0f2e, 0x0f2f, 
+	0x0f30, 0x0f31, 0x0f32, 0x0f33, 0x0f34, 0x0f35, 0x0f36, 0x0f37, 
+	0x0f38, 0x0f39, 0x0f3a, 0x0f3b, 0x0f3c, 0x0f3d, 0x0f3e, 0x0f3f, 
+	};
+
+static const unsigned short gNormalizeTable0f40[] = {
+	/* U+0f40 */
+	0x0f40, 0x0f41, 0x0f42, 0x0f42, 0x0f44, 0x0f45, 0x0f46, 0x0f47, 
+	0x0f48, 0x0f49, 0x0f4a, 0x0f4b, 0x0f4c, 0x0f4c, 0x0f4e, 0x0f4f, 
+	0x0f50, 0x0f51, 0x0f51, 0x0f53, 0x0f54, 0x0f55, 0x0f56, 0x0f56, 
+	0x0f58, 0x0f59, 0x0f5a, 0x0f5b, 0x0f5b, 0x0f5d, 0x0f5e, 0x0f5f, 
+	0x0f60, 0x0f61, 0x0f62, 0x0f63, 0x0f64, 0x0f65, 0x0f66, 0x0f67, 
+	0x0f68, 0x0f40, 0x0f6a, 0x0f6b, 0x0f6c, 0x0f6d, 0x0f6e, 0x0f6f, 
+	0x0f70, 0x0f71, 0x0f72, 0x0f71, 0x0f74, 0x0f71, 0x0fb2, 0x0fb2, 
+	0x0fb3, 0x0fb3, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f7e, 0x0f7f, 
+	};
+
+static const unsigned short gNormalizeTable0f80[] = {
+	/* U+0f80 */
+	0x0f80, 0x0f71, 0x0f82, 0x0f83, 0x0f84, 0x0f85, 0x0f86, 0x0f87, 
+	0x0f88, 0x0f89, 0x0f8a, 0x0f8b, 0x0f8c, 0x0f8d, 0x0f8e, 0x0f8f, 
+	0x0f90, 0x0f91, 0x0f92, 0x0f92, 0x0f94, 0x0f95, 0x0f96, 0x0f97, 
+	0x0f98, 0x0f99, 0x0f9a, 0x0f9b, 0x0f9c, 0x0f9c, 0x0f9e, 0x0f9f, 
+	0x0fa0, 0x0fa1, 0x0fa1, 0x0fa3, 0x0fa4, 0x0fa5, 0x0fa6, 0x0fa6, 
+	0x0fa8, 0x0fa9, 0x0faa, 0x0fab, 0x0fab, 0x0fad, 0x0fae, 0x0faf, 
+	0x0fb0, 0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7, 
+	0x0fb8, 0x0f90, 0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf, 
+	};
+
+static const unsigned short gNormalizeTable1000[] = {
+	/* U+1000 */
+	0x1000, 0x1001, 0x1002, 0x1003, 0x1004, 0x1005, 0x1006, 0x1007, 
+	0x1008, 0x1009, 0x100a, 0x100b, 0x100c, 0x100d, 0x100e, 0x100f, 
+	0x1010, 0x1011, 0x1012, 0x1013, 0x1014, 0x1015, 0x1016, 0x1017, 
+	0x1018, 0x1019, 0x101a, 0x101b, 0x101c, 0x101d, 0x101e, 0x101f, 
+	0x1020, 0x1021, 0x1022, 0x1023, 0x1024, 0x1025, 0x1025, 0x1027, 
+	0x1028, 0x1029, 0x102a, 0x102b, 0x102c, 0x102d, 0x102e, 0x102f, 
+	0x1030, 0x1031, 0x1032, 0x1033, 0x1034, 0x1035, 0x1036, 0x1037, 
+	0x1038, 0x1039, 0x103a, 0x103b, 0x103c, 0x103d, 0x103e, 0x103f, 
+	};
+
+static const unsigned short gNormalizeTable1080[] = {
+	/* U+1080 */
+	0x1080, 0x1081, 0x1082, 0x1083, 0x1084, 0x1085, 0x1086, 0x1087, 
+	0x1088, 0x1089, 0x108a, 0x108b, 0x108c, 0x108d, 0x108e, 0x108f, 
+	0x1090, 0x1091, 0x1092, 0x1093, 0x1094, 0x1095, 0x1096, 0x1097, 
+	0x1098, 0x1099, 0x109a, 0x109b, 0x109c, 0x109d, 0x109e, 0x109f, 
+	0x2d00, 0x2d01, 0x2d02, 0x2d03, 0x2d04, 0x2d05, 0x2d06, 0x2d07, 
+	0x2d08, 0x2d09, 0x2d0a, 0x2d0b, 0x2d0c, 0x2d0d, 0x2d0e, 0x2d0f, 
+	0x2d10, 0x2d11, 0x2d12, 0x2d13, 0x2d14, 0x2d15, 0x2d16, 0x2d17, 
+	0x2d18, 0x2d19, 0x2d1a, 0x2d1b, 0x2d1c, 0x2d1d, 0x2d1e, 0x2d1f, 
+	};
+
+static const unsigned short gNormalizeTable10c0[] = {
+	/* U+10c0 */
+	0x2d20, 0x2d21, 0x2d22, 0x2d23, 0x2d24, 0x2d25, 0x10c6, 0x10c7, 
+	0x10c8, 0x10c9, 0x10ca, 0x10cb, 0x10cc, 0x10cd, 0x10ce, 0x10cf, 
+	0x10d0, 0x10d1, 0x10d2, 0x10d3, 0x10d4, 0x10d5, 0x10d6, 0x10d7, 
+	0x10d8, 0x10d9, 0x10da, 0x10db, 0x10dc, 0x10dd, 0x10de, 0x10df, 
+	0x10e0, 0x10e1, 0x10e2, 0x10e3, 0x10e4, 0x10e5, 0x10e6, 0x10e7, 
+	0x10e8, 0x10e9, 0x10ea, 0x10eb, 0x10ec, 0x10ed, 0x10ee, 0x10ef, 
+	0x10f0, 0x10f1, 0x10f2, 0x10f3, 0x10f4, 0x10f5, 0x10f6, 0x10f7, 
+	0x10f8, 0x10f9, 0x10fa, 0x10fb, 0x10dc, 0x10fd, 0x10fe, 0x10ff, 
+	};
+
+static const unsigned short gNormalizeTable1140[] = {
+	/* U+1140 */
+	0x1140, 0x1141, 0x1142, 0x1143, 0x1144, 0x1145, 0x1146, 0x1147, 
+	0x1148, 0x1149, 0x114a, 0x114b, 0x114c, 0x114d, 0x114e, 0x114f, 
+	0x1150, 0x1151, 0x1152, 0x1153, 0x1154, 0x1155, 0x1156, 0x1157, 
+	0x1158, 0x1159, 0x115a, 0x115b, 0x115c, 0x115d, 0x115e, 0x0020, 
+	0x0020, 0x1161, 0x1162, 0x1163, 0x1164, 0x1165, 0x1166, 0x1167, 
+	0x1168, 0x1169, 0x116a, 0x116b, 0x116c, 0x116d, 0x116e, 0x116f, 
+	0x1170, 0x1171, 0x1172, 0x1173, 0x1174, 0x1175, 0x1176, 0x1177, 
+	0x1178, 0x1179, 0x117a, 0x117b, 0x117c, 0x117d, 0x117e, 0x117f, 
+	};
+
+static const unsigned short gNormalizeTable1780[] = {
+	/* U+1780 */
+	0x1780, 0x1781, 0x1782, 0x1783, 0x1784, 0x1785, 0x1786, 0x1787, 
+	0x1788, 0x1789, 0x178a, 0x178b, 0x178c, 0x178d, 0x178e, 0x178f, 
+	0x1790, 0x1791, 0x1792, 0x1793, 0x1794, 0x1795, 0x1796, 0x1797, 
+	0x1798, 0x1799, 0x179a, 0x179b, 0x179c, 0x179d, 0x179e, 0x179f, 
+	0x17a0, 0x17a1, 0x17a2, 0x17a3, 0x17a4, 0x17a5, 0x17a6, 0x17a7, 
+	0x17a8, 0x17a9, 0x17aa, 0x17ab, 0x17ac, 0x17ad, 0x17ae, 0x17af, 
+	0x17b0, 0x17b1, 0x17b2, 0x17b3, 0x0020, 0x0020, 0x17b6, 0x17b7, 
+	0x17b8, 0x17b9, 0x17ba, 0x17bb, 0x17bc, 0x17bd, 0x17be, 0x17bf, 
+	};
+
+static const unsigned short gNormalizeTable1800[] = {
+	/* U+1800 */
+	0x1800, 0x1801, 0x1802, 0x1803, 0x1804, 0x1805, 0x1806, 0x1807, 
+	0x1808, 0x1809, 0x180a, 0x0020, 0x0020, 0x0020, 0x180e, 0x180f, 
+	0x1810, 0x1811, 0x1812, 0x1813, 0x1814, 0x1815, 0x1816, 0x1817, 
+	0x1818, 0x1819, 0x181a, 0x181b, 0x181c, 0x181d, 0x181e, 0x181f, 
+	0x1820, 0x1821, 0x1822, 0x1823, 0x1824, 0x1825, 0x1826, 0x1827, 
+	0x1828, 0x1829, 0x182a, 0x182b, 0x182c, 0x182d, 0x182e, 0x182f, 
+	0x1830, 0x1831, 0x1832, 0x1833, 0x1834, 0x1835, 0x1836, 0x1837, 
+	0x1838, 0x1839, 0x183a, 0x183b, 0x183c, 0x183d, 0x183e, 0x183f, 
+	};
+
+static const unsigned short gNormalizeTable1b00[] = {
+	/* U+1b00 */
+	0x1b00, 0x1b01, 0x1b02, 0x1b03, 0x1b04, 0x1b05, 0x1b05, 0x1b07, 
+	0x1b07, 0x1b09, 0x1b09, 0x1b0b, 0x1b0b, 0x1b0d, 0x1b0d, 0x1b0f, 
+	0x1b10, 0x1b11, 0x1b11, 0x1b13, 0x1b14, 0x1b15, 0x1b16, 0x1b17, 
+	0x1b18, 0x1b19, 0x1b1a, 0x1b1b, 0x1b1c, 0x1b1d, 0x1b1e, 0x1b1f, 
+	0x1b20, 0x1b21, 0x1b22, 0x1b23, 0x1b24, 0x1b25, 0x1b26, 0x1b27, 
+	0x1b28, 0x1b29, 0x1b2a, 0x1b2b, 0x1b2c, 0x1b2d, 0x1b2e, 0x1b2f, 
+	0x1b30, 0x1b31, 0x1b32, 0x1b33, 0x1b34, 0x1b35, 0x1b36, 0x1b37, 
+	0x1b38, 0x1b39, 0x1b3a, 0x1b3a, 0x1b3c, 0x1b3c, 0x1b3e, 0x1b3f, 
+	};
+
+static const unsigned short gNormalizeTable1b40[] = {
+	/* U+1b40 */
+	0x1b3e, 0x1b3f, 0x1b42, 0x1b42, 0x1b44, 0x1b45, 0x1b46, 0x1b47, 
+	0x1b48, 0x1b49, 0x1b4a, 0x1b4b, 0x1b4c, 0x1b4d, 0x1b4e, 0x1b4f, 
+	0x1b50, 0x1b51, 0x1b52, 0x1b53, 0x1b54, 0x1b55, 0x1b56, 0x1b57, 
+	0x1b58, 0x1b59, 0x1b5a, 0x1b5b, 0x1b5c, 0x1b5d, 0x1b5e, 0x1b5f, 
+	0x1b60, 0x1b61, 0x1b62, 0x1b63, 0x1b64, 0x1b65, 0x1b66, 0x1b67, 
+	0x1b68, 0x1b69, 0x1b6a, 0x1b6b, 0x1b6c, 0x1b6d, 0x1b6e, 0x1b6f, 
+	0x1b70, 0x1b71, 0x1b72, 0x1b73, 0x1b74, 0x1b75, 0x1b76, 0x1b77, 
+	0x1b78, 0x1b79, 0x1b7a, 0x1b7b, 0x1b7c, 0x1b7d, 0x1b7e, 0x1b7f, 
+	};
+
+static const unsigned short gNormalizeTable1d00[] = {
+	/* U+1d00 */
+	0x1d00, 0x1d01, 0x1d02, 0x1d03, 0x1d04, 0x1d05, 0x1d06, 0x1d07, 
+	0x1d08, 0x1d09, 0x1d0a, 0x1d0b, 0x1d0c, 0x1d0d, 0x1d0e, 0x1d0f, 
+	0x1d10, 0x1d11, 0x1d12, 0x1d13, 0x1d14, 0x1d15, 0x1d16, 0x1d17, 
+	0x1d18, 0x1d19, 0x1d1a, 0x1d1b, 0x1d1c, 0x1d1d, 0x1d1e, 0x1d1f, 
+	0x1d20, 0x1d21, 0x1d22, 0x1d23, 0x1d24, 0x1d25, 0x1d26, 0x1d27, 
+	0x1d28, 0x1d29, 0x1d2a, 0x1d2b, 0x0061, 0x00e6, 0x0062, 0x1d2f, 
+	0x0064, 0x0065, 0x01dd, 0x0067, 0x0068, 0x0069, 0x006a, 0x006b, 
+	0x006c, 0x006d, 0x006e, 0x1d3b, 0x006f, 0x0223, 0x0070, 0x0072, 
+	};
+
+static const unsigned short gNormalizeTable1d40[] = {
+	/* U+1d40 */
+	0x0074, 0x0075, 0x0077, 0x0061, 0x0250, 0x0251, 0x1d02, 0x0062, 
+	0x0064, 0x0065, 0x0259, 0x025b, 0x025c, 0x0067, 0x1d4e, 0x006b, 
+	0x006d, 0x014b, 0x006f, 0x0254, 0x1d16, 0x1d17, 0x0070, 0x0074, 
+	0x0075, 0x1d1d, 0x026f, 0x0076, 0x1d25, 0x03b2, 0x03b3, 0x03b4, 
+	0x03c6, 0x03c7, 0x0069, 0x0072, 0x0075, 0x0076, 0x03b2, 0x03b3, 
+	0x03c1, 0x03c6, 0x03c7, 0x1d6b, 0x1d6c, 0x1d6d, 0x1d6e, 0x1d6f, 
+	0x1d70, 0x1d71, 0x1d72, 0x1d73, 0x1d74, 0x1d75, 0x1d76, 0x1d77, 
+	0x043d, 0x1d79, 0x1d7a, 0x1d7b, 0x1d7c, 0x1d7d, 0x1d7e, 0x1d7f, 
+	};
+
+static const unsigned short gNormalizeTable1d80[] = {
+	/* U+1d80 */
+	0x1d80, 0x1d81, 0x1d82, 0x1d83, 0x1d84, 0x1d85, 0x1d86, 0x1d87, 
+	0x1d88, 0x1d89, 0x1d8a, 0x1d8b, 0x1d8c, 0x1d8d, 0x1d8e, 0x1d8f, 
+	0x1d90, 0x1d91, 0x1d92, 0x1d93, 0x1d94, 0x1d95, 0x1d96, 0x1d97, 
+	0x1d98, 0x1d99, 0x1d9a, 0x0252, 0x0063, 0x0255, 0x00f0, 0x025c, 
+	0x0066, 0x025f, 0x0261, 0x0265, 0x0268, 0x0269, 0x026a, 0x1d7b, 
+	0x029d, 0x026d, 0x1d85, 0x029f, 0x0271, 0x0270, 0x0272, 0x0273, 
+	0x0274, 0x0275, 0x0278, 0x0282, 0x0283, 0x01ab, 0x0289, 0x028a, 
+	0x1d1c, 0x028b, 0x028c, 0x007a, 0x0290, 0x0291, 0x0292, 0x03b8, 
+	};
+
+static const unsigned short gNormalizeTable1e00[] = {
+	/* U+1e00 */
+	0x0061, 0x0061, 0x0062, 0x0062, 0x0062, 0x0062, 0x0062, 0x0062, 
+	0x0063, 0x0063, 0x0064, 0x0064, 0x0064, 0x0064, 0x0064, 0x0064, 
+	0x0064, 0x0064, 0x0064, 0x0064, 0x0065, 0x0065, 0x0065, 0x0065, 
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0066, 0x0066, 
+	0x0067, 0x0067, 0x0068, 0x0068, 0x0068, 0x0068, 0x0068, 0x0068, 
+	0x0068, 0x0068, 0x0068, 0x0068, 0x0069, 0x0069, 0x0069, 0x0069, 
+	0x006b, 0x006b, 0x006b, 0x006b, 0x006b, 0x006b, 0x006c, 0x006c, 
+	0x006c, 0x006c, 0x006c, 0x006c, 0x006c, 0x006c, 0x006d, 0x006d, 
+	};
+
+static const unsigned short gNormalizeTable1e40[] = {
+	/* U+1e40 */
+	0x006d, 0x006d, 0x006d, 0x006d, 0x006e, 0x006e, 0x006e, 0x006e, 
+	0x006e, 0x006e, 0x006e, 0x006e, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x006f, 0x006f, 0x0070, 0x0070, 0x0070, 0x0070, 
+	0x0072, 0x0072, 0x0072, 0x0072, 0x0072, 0x0072, 0x0072, 0x0072, 
+	0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 0x0073, 
+	0x0073, 0x0073, 0x0074, 0x0074, 0x0074, 0x0074, 0x0074, 0x0074, 
+	0x0074, 0x0074, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0075, 0x0075, 0x0075, 0x0075, 0x0076, 0x0076, 0x0076, 0x0076, 
+	};
+
+static const unsigned short gNormalizeTable1e80[] = {
+	/* U+1e80 */
+	0x0077, 0x0077, 0x0077, 0x0077, 0x0077, 0x0077, 0x0077, 0x0077, 
+	0x0077, 0x0077, 0x0078, 0x0078, 0x0078, 0x0078, 0x0079, 0x0079, 
+	0x007a, 0x007a, 0x007a, 0x007a, 0x007a, 0x007a, 0x0068, 0x0074, 
+	0x0077, 0x0079, 0x0061, 0x0073, 0x1e9c, 0x1e9d, 0x0073, 0x1e9f, 
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 
+	0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 0x0061, 
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 
+	};
+
+static const unsigned short gNormalizeTable1ec0[] = {
+	/* U+1ec0 */
+	0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 0x0065, 
+	0x0069, 0x0069, 0x0069, 0x0069, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 0x006f, 
+	0x006f, 0x006f, 0x006f, 0x006f, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 0x0075, 
+	0x0075, 0x0075, 0x0079, 0x0079, 0x0079, 0x0079, 0x0079, 0x0079, 
+	0x0079, 0x0079, 0x1efb, 0x1efb, 0x1efd, 0x1efd, 0x1eff, 0x1eff, 
+	};
+
+static const unsigned short gNormalizeTable1f00[] = {
+	/* U+1f00 */
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 
+	0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x1f16, 0x1f17, 
+	0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x03b5, 0x1f1e, 0x1f1f, 
+	0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 
+	0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 
+	0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 
+	0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x03b9, 
+	};
+
+static const unsigned short gNormalizeTable1f40[] = {
+	/* U+1f40 */
+	0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x1f46, 0x1f47, 
+	0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x03bf, 0x1f4e, 0x1f4f, 
+	0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c5, 
+	0x1f58, 0x03c5, 0x1f5a, 0x03c5, 0x1f5c, 0x03c5, 0x1f5e, 0x03c5, 
+	0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 
+	0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 
+	0x03b1, 0x03b1, 0x03b5, 0x03b5, 0x03b7, 0x03b7, 0x03b9, 0x03b9, 
+	0x03bf, 0x03bf, 0x03c5, 0x03c5, 0x03c9, 0x03c9, 0x1f7e, 0x1f7f, 
+	};
+
+static const unsigned short gNormalizeTable1f80[] = {
+	/* U+1f80 */
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 
+	0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 
+	0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 0x03b7, 
+	0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 
+	0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 0x03c9, 
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x1fb5, 0x03b1, 0x03b1, 
+	0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x03b1, 0x0020, 0x03b9, 0x0020, 
+	};
+
+static const unsigned short gNormalizeTable1fc0[] = {
+	/* U+1fc0 */
+	0x0020, 0x0020, 0x03b7, 0x03b7, 0x03b7, 0x1fc5, 0x03b7, 0x03b7, 
+	0x03b5, 0x03b5, 0x03b7, 0x03b7, 0x03b7, 0x0020, 0x0020, 0x0020, 
+	0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x1fd4, 0x1fd5, 0x03b9, 0x03b9, 
+	0x03b9, 0x03b9, 0x03b9, 0x03b9, 0x1fdc, 0x0020, 0x0020, 0x0020, 
+	0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c1, 0x03c1, 0x03c5, 0x03c5, 
+	0x03c5, 0x03c5, 0x03c5, 0x03c5, 0x03c1, 0x0020, 0x0020, 0x0060, 
+	0x1ff0, 0x1ff1, 0x03c9, 0x03c9, 0x03c9, 0x1ff5, 0x03c9, 0x03c9, 
+	0x03bf, 0x03bf, 0x03c9, 0x03c9, 0x03c9, 0x0020, 0x0020, 0x1fff, 
+	};
+
+static const unsigned short gNormalizeTable2000[] = {
+	/* U+2000 */
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x2010, 0x2010, 0x2012, 0x2013, 0x2014, 0x2015, 0x2016, 0x0020, 
+	0x2018, 0x2019, 0x201a, 0x201b, 0x201c, 0x201d, 0x201e, 0x201f, 
+	0x2020, 0x2021, 0x2022, 0x2023, 0x002e, 0x002e, 0x002e, 0x2027, 
+	0x2028, 0x2029, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x2030, 0x2031, 0x2032, 0x2032, 0x2032, 0x2035, 0x2035, 0x2035, 
+	0x2038, 0x2039, 0x203a, 0x203b, 0x0021, 0x203d, 0x0020, 0x203f, 
+	};
+
+static const unsigned short gNormalizeTable2040[] = {
+	/* U+2040 */
+	0x2040, 0x2041, 0x2042, 0x2043, 0x2044, 0x2045, 0x2046, 0x003f, 
+	0x003f, 0x0021, 0x204a, 0x204b, 0x204c, 0x204d, 0x204e, 0x204f, 
+	0x2050, 0x2051, 0x2052, 0x2053, 0x2054, 0x2055, 0x2056, 0x2032, 
+	0x2058, 0x2059, 0x205a, 0x205b, 0x205c, 0x205d, 0x205e, 0x0020, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x0030, 0x0069, 0x2072, 0x2073, 0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x002b, 0x2212, 0x003d, 0x0028, 0x0029, 0x006e, 
+	};
+
+static const unsigned short gNormalizeTable2080[] = {
+	/* U+2080 */
+	0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x002b, 0x2212, 0x003d, 0x0028, 0x0029, 0x208f, 
+	0x0061, 0x0065, 0x006f, 0x0078, 0x0259, 0x2095, 0x2096, 0x2097, 
+	0x2098, 0x2099, 0x209a, 0x209b, 0x209c, 0x209d, 0x209e, 0x209f, 
+	0x20a0, 0x20a1, 0x20a2, 0x20a3, 0x20a4, 0x20a5, 0x20a6, 0x20a7, 
+	0x0072, 0x20a9, 0x20aa, 0x20ab, 0x20ac, 0x20ad, 0x20ae, 0x20af, 
+	0x20b0, 0x20b1, 0x20b2, 0x20b3, 0x20b4, 0x20b5, 0x20b6, 0x20b7, 
+	0x20b8, 0x20b9, 0x20ba, 0x20bb, 0x20bc, 0x20bd, 0x20be, 0x20bf, 
+	};
+
+static const unsigned short gNormalizeTable2100[] = {
+	/* U+2100 */
+	0x0061, 0x0061, 0x0063, 0x00b0, 0x2104, 0x0063, 0x0063, 0x025b, 
+	0x2108, 0x00b0, 0x0067, 0x0068, 0x0068, 0x0068, 0x0068, 0x0127, 
+	0x0069, 0x0069, 0x006c, 0x006c, 0x2114, 0x006e, 0x006e, 0x2117, 
+	0x2118, 0x0070, 0x0071, 0x0072, 0x0072, 0x0072, 0x211e, 0x211f, 
+	0x0073, 0x0074, 0x0074, 0x2123, 0x007a, 0x2125, 0x03c9, 0x2127, 
+	0x007a, 0x2129, 0x006b, 0x0061, 0x0062, 0x0063, 0x212e, 0x0065, 
+	0x0065, 0x0066, 0x214e, 0x006d, 0x006f, 0x05d0, 0x05d1, 0x05d2, 
+	0x05d3, 0x0069, 0x213a, 0x0066, 0x03c0, 0x03b3, 0x03b3, 0x03c0, 
+	};
+
+static const unsigned short gNormalizeTable2140[] = {
+	/* U+2140 */
+	0x2211, 0x2141, 0x2142, 0x2143, 0x2144, 0x0064, 0x0064, 0x0065, 
+	0x0069, 0x006a, 0x214a, 0x214b, 0x214c, 0x214d, 0x214e, 0x214f, 
+	0x0031, 0x0031, 0x0031, 0x0031, 0x0032, 0x0031, 0x0032, 0x0033, 
+	0x0034, 0x0031, 0x0035, 0x0031, 0x0033, 0x0035, 0x0037, 0x0031, 
+	0x0069, 0x0069, 0x0069, 0x0069, 0x0076, 0x0076, 0x0076, 0x0076, 
+	0x0069, 0x0078, 0x0078, 0x0078, 0x006c, 0x0063, 0x0064, 0x006d, 
+	0x0069, 0x0069, 0x0069, 0x0069, 0x0076, 0x0076, 0x0076, 0x0076, 
+	0x0069, 0x0078, 0x0078, 0x0078, 0x006c, 0x0063, 0x0064, 0x006d, 
+	};
+
+static const unsigned short gNormalizeTable2180[] = {
+	/* U+2180 */
+	0x2180, 0x2181, 0x2182, 0x2184, 0x2184, 0x2185, 0x2186, 0x2187, 
+	0x2188, 0x0030, 0x218a, 0x218b, 0x218c, 0x218d, 0x218e, 0x218f, 
+	0x2190, 0x2191, 0x2192, 0x2193, 0x2194, 0x2195, 0x2196, 0x2197, 
+	0x2198, 0x2199, 0x2190, 0x2192, 0x219c, 0x219d, 0x219e, 0x219f, 
+	0x21a0, 0x21a1, 0x21a2, 0x21a3, 0x21a4, 0x21a5, 0x21a6, 0x21a7, 
+	0x21a8, 0x21a9, 0x21aa, 0x21ab, 0x21ac, 0x21ad, 0x2194, 0x21af, 
+	0x21b0, 0x21b1, 0x21b2, 0x21b3, 0x21b4, 0x21b5, 0x21b6, 0x21b7, 
+	0x21b8, 0x21b9, 0x21ba, 0x21bb, 0x21bc, 0x21bd, 0x21be, 0x21bf, 
+	};
+
+static const unsigned short gNormalizeTable21c0[] = {
+	/* U+21c0 */
+	0x21c0, 0x21c1, 0x21c2, 0x21c3, 0x21c4, 0x21c5, 0x21c6, 0x21c7, 
+	0x21c8, 0x21c9, 0x21ca, 0x21cb, 0x21cc, 0x21d0, 0x21d4, 0x21d2, 
+	0x21d0, 0x21d1, 0x21d2, 0x21d3, 0x21d4, 0x21d5, 0x21d6, 0x21d7, 
+	0x21d8, 0x21d9, 0x21da, 0x21db, 0x21dc, 0x21dd, 0x21de, 0x21df, 
+	0x21e0, 0x21e1, 0x21e2, 0x21e3, 0x21e4, 0x21e5, 0x21e6, 0x21e7, 
+	0x21e8, 0x21e9, 0x21ea, 0x21eb, 0x21ec, 0x21ed, 0x21ee, 0x21ef, 
+	0x21f0, 0x21f1, 0x21f2, 0x21f3, 0x21f4, 0x21f5, 0x21f6, 0x21f7, 
+	0x21f8, 0x21f9, 0x21fa, 0x21fb, 0x21fc, 0x21fd, 0x21fe, 0x21ff, 
+	};
+
+static const unsigned short gNormalizeTable2200[] = {
+	/* U+2200 */
+	0x2200, 0x2201, 0x2202, 0x2203, 0x2203, 0x2205, 0x2206, 0x2207, 
+	0x2208, 0x2208, 0x220a, 0x220b, 0x220b, 0x220d, 0x220e, 0x220f, 
+	0x2210, 0x2211, 0x2212, 0x2213, 0x2214, 0x2215, 0x2216, 0x2217, 
+	0x2218, 0x2219, 0x221a, 0x221b, 0x221c, 0x221d, 0x221e, 0x221f, 
+	0x2220, 0x2221, 0x2222, 0x2223, 0x2223, 0x2225, 0x2225, 0x2227, 
+	0x2228, 0x2229, 0x222a, 0x222b, 0x222b, 0x222b, 0x222e, 0x222e, 
+	0x222e, 0x2231, 0x2232, 0x2233, 0x2234, 0x2235, 0x2236, 0x2237, 
+	0x2238, 0x2239, 0x223a, 0x223b, 0x223c, 0x223d, 0x223e, 0x223f, 
+	};
+
+static const unsigned short gNormalizeTable2240[] = {
+	/* U+2240 */
+	0x2240, 0x223c, 0x2242, 0x2243, 0x2243, 0x2245, 0x2246, 0x2245, 
+	0x2248, 0x2248, 0x224a, 0x224b, 0x224c, 0x224d, 0x224e, 0x224f, 
+	0x2250, 0x2251, 0x2252, 0x2253, 0x2254, 0x2255, 0x2256, 0x2257, 
+	0x2258, 0x2259, 0x225a, 0x225b, 0x225c, 0x225d, 0x225e, 0x225f, 
+	0x003d, 0x2261, 0x2261, 0x2263, 0x2264, 0x2265, 0x2266, 0x2267, 
+	0x2268, 0x2269, 0x226a, 0x226b, 0x226c, 0x224d, 0x003c, 0x003e, 
+	0x2264, 0x2265, 0x2272, 0x2273, 0x2272, 0x2273, 0x2276, 0x2277, 
+	0x2276, 0x2277, 0x227a, 0x227b, 0x227c, 0x227d, 0x227e, 0x227f, 
+	};
+
+static const unsigned short gNormalizeTable2280[] = {
+	/* U+2280 */
+	0x227a, 0x227b, 0x2282, 0x2283, 0x2282, 0x2283, 0x2286, 0x2287, 
+	0x2286, 0x2287, 0x228a, 0x228b, 0x228c, 0x228d, 0x228e, 0x228f, 
+	0x2290, 0x2291, 0x2292, 0x2293, 0x2294, 0x2295, 0x2296, 0x2297, 
+	0x2298, 0x2299, 0x229a, 0x229b, 0x229c, 0x229d, 0x229e, 0x229f, 
+	0x22a0, 0x22a1, 0x22a2, 0x22a3, 0x22a4, 0x22a5, 0x22a6, 0x22a7, 
+	0x22a8, 0x22a9, 0x22aa, 0x22ab, 0x22a2, 0x22a8, 0x22a9, 0x22ab, 
+	0x22b0, 0x22b1, 0x22b2, 0x22b3, 0x22b4, 0x22b5, 0x22b6, 0x22b7, 
+	0x22b8, 0x22b9, 0x22ba, 0x22bb, 0x22bc, 0x22bd, 0x22be, 0x22bf, 
+	};
+
+static const unsigned short gNormalizeTable22c0[] = {
+	/* U+22c0 */
+	0x22c0, 0x22c1, 0x22c2, 0x22c3, 0x22c4, 0x22c5, 0x22c6, 0x22c7, 
+	0x22c8, 0x22c9, 0x22ca, 0x22cb, 0x22cc, 0x22cd, 0x22ce, 0x22cf, 
+	0x22d0, 0x22d1, 0x22d2, 0x22d3, 0x22d4, 0x22d5, 0x22d6, 0x22d7, 
+	0x22d8, 0x22d9, 0x22da, 0x22db, 0x22dc, 0x22dd, 0x22de, 0x22df, 
+	0x227c, 0x227d, 0x2291, 0x2292, 0x22e4, 0x22e5, 0x22e6, 0x22e7, 
+	0x22e8, 0x22e9, 0x22b2, 0x22b3, 0x22b4, 0x22b5, 0x22ee, 0x22ef, 
+	0x22f0, 0x22f1, 0x22f2, 0x22f3, 0x22f4, 0x22f5, 0x22f6, 0x22f7, 
+	0x22f8, 0x22f9, 0x22fa, 0x22fb, 0x22fc, 0x22fd, 0x22fe, 0x22ff, 
+	};
+
+static const unsigned short gNormalizeTable2300[] = {
+	/* U+2300 */
+	0x2300, 0x2301, 0x2302, 0x2303, 0x2304, 0x2305, 0x2306, 0x2307, 
+	0x2308, 0x2309, 0x230a, 0x230b, 0x230c, 0x230d, 0x230e, 0x230f, 
+	0x2310, 0x2311, 0x2312, 0x2313, 0x2314, 0x2315, 0x2316, 0x2317, 
+	0x2318, 0x2319, 0x231a, 0x231b, 0x231c, 0x231d, 0x231e, 0x231f, 
+	0x2320, 0x2321, 0x2322, 0x2323, 0x2324, 0x2325, 0x2326, 0x2327, 
+	0x2328, 0x3008, 0x3009, 0x232b, 0x232c, 0x232d, 0x232e, 0x232f, 
+	0x2330, 0x2331, 0x2332, 0x2333, 0x2334, 0x2335, 0x2336, 0x2337, 
+	0x2338, 0x2339, 0x233a, 0x233b, 0x233c, 0x233d, 0x233e, 0x233f, 
+	};
+
+static const unsigned short gNormalizeTable2440[] = {
+	/* U+2440 */
+	0x2440, 0x2441, 0x2442, 0x2443, 0x2444, 0x2445, 0x2446, 0x2447, 
+	0x2448, 0x2449, 0x244a, 0x244b, 0x244c, 0x244d, 0x244e, 0x244f, 
+	0x2450, 0x2451, 0x2452, 0x2453, 0x2454, 0x2455, 0x2456, 0x2457, 
+	0x2458, 0x2459, 0x245a, 0x245b, 0x245c, 0x245d, 0x245e, 0x245f, 
+	0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 
+	0x0039, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 
+	0x0031, 0x0031, 0x0031, 0x0032, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	};
+
+static const unsigned short gNormalizeTable2480[] = {
+	/* U+2480 */
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 
+	0x0039, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 
+	0x0031, 0x0031, 0x0031, 0x0032, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0061, 0x0062, 
+	0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006a, 
+	};
+
+static const unsigned short gNormalizeTable24c0[] = {
+	/* U+24c0 */
+	0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 0x0070, 0x0071, 0x0072, 
+	0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 0x0078, 0x0079, 0x007a, 
+	0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 
+	0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 0x0070, 
+	0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 0x0078, 
+	0x0079, 0x007a, 0x0030, 0x24eb, 0x24ec, 0x24ed, 0x24ee, 0x24ef, 
+	0x24f0, 0x24f1, 0x24f2, 0x24f3, 0x24f4, 0x24f5, 0x24f6, 0x24f7, 
+	0x24f8, 0x24f9, 0x24fa, 0x24fb, 0x24fc, 0x24fd, 0x24fe, 0x24ff, 
+	};
+
+static const unsigned short gNormalizeTable2a00[] = {
+	/* U+2a00 */
+	0x2a00, 0x2a01, 0x2a02, 0x2a03, 0x2a04, 0x2a05, 0x2a06, 0x2a07, 
+	0x2a08, 0x2a09, 0x2a0a, 0x2a0b, 0x222b, 0x2a0d, 0x2a0e, 0x2a0f, 
+	0x2a10, 0x2a11, 0x2a12, 0x2a13, 0x2a14, 0x2a15, 0x2a16, 0x2a17, 
+	0x2a18, 0x2a19, 0x2a1a, 0x2a1b, 0x2a1c, 0x2a1d, 0x2a1e, 0x2a1f, 
+	0x2a20, 0x2a21, 0x2a22, 0x2a23, 0x2a24, 0x2a25, 0x2a26, 0x2a27, 
+	0x2a28, 0x2a29, 0x2a2a, 0x2a2b, 0x2a2c, 0x2a2d, 0x2a2e, 0x2a2f, 
+	0x2a30, 0x2a31, 0x2a32, 0x2a33, 0x2a34, 0x2a35, 0x2a36, 0x2a37, 
+	0x2a38, 0x2a39, 0x2a3a, 0x2a3b, 0x2a3c, 0x2a3d, 0x2a3e, 0x2a3f, 
+	};
+
+static const unsigned short gNormalizeTable2a40[] = {
+	/* U+2a40 */
+	0x2a40, 0x2a41, 0x2a42, 0x2a43, 0x2a44, 0x2a45, 0x2a46, 0x2a47, 
+	0x2a48, 0x2a49, 0x2a4a, 0x2a4b, 0x2a4c, 0x2a4d, 0x2a4e, 0x2a4f, 
+	0x2a50, 0x2a51, 0x2a52, 0x2a53, 0x2a54, 0x2a55, 0x2a56, 0x2a57, 
+	0x2a58, 0x2a59, 0x2a5a, 0x2a5b, 0x2a5c, 0x2a5d, 0x2a5e, 0x2a5f, 
+	0x2a60, 0x2a61, 0x2a62, 0x2a63, 0x2a64, 0x2a65, 0x2a66, 0x2a67, 
+	0x2a68, 0x2a69, 0x2a6a, 0x2a6b, 0x2a6c, 0x2a6d, 0x2a6e, 0x2a6f, 
+	0x2a70, 0x2a71, 0x2a72, 0x2a73, 0x003a, 0x003d, 0x003d, 0x2a77, 
+	0x2a78, 0x2a79, 0x2a7a, 0x2a7b, 0x2a7c, 0x2a7d, 0x2a7e, 0x2a7f, 
+	};
+
+static const unsigned short gNormalizeTable2ac0[] = {
+	/* U+2ac0 */
+	0x2ac0, 0x2ac1, 0x2ac2, 0x2ac3, 0x2ac4, 0x2ac5, 0x2ac6, 0x2ac7, 
+	0x2ac8, 0x2ac9, 0x2aca, 0x2acb, 0x2acc, 0x2acd, 0x2ace, 0x2acf, 
+	0x2ad0, 0x2ad1, 0x2ad2, 0x2ad3, 0x2ad4, 0x2ad5, 0x2ad6, 0x2ad7, 
+	0x2ad8, 0x2ad9, 0x2ada, 0x2adb, 0x2add, 0x2add, 0x2ade, 0x2adf, 
+	0x2ae0, 0x2ae1, 0x2ae2, 0x2ae3, 0x2ae4, 0x2ae5, 0x2ae6, 0x2ae7, 
+	0x2ae8, 0x2ae9, 0x2aea, 0x2aeb, 0x2aec, 0x2aed, 0x2aee, 0x2aef, 
+	0x2af0, 0x2af1, 0x2af2, 0x2af3, 0x2af4, 0x2af5, 0x2af6, 0x2af7, 
+	0x2af8, 0x2af9, 0x2afa, 0x2afb, 0x2afc, 0x2afd, 0x2afe, 0x2aff, 
+	};
+
+static const unsigned short gNormalizeTable2c00[] = {
+	/* U+2c00 */
+	0x2c30, 0x2c31, 0x2c32, 0x2c33, 0x2c34, 0x2c35, 0x2c36, 0x2c37, 
+	0x2c38, 0x2c39, 0x2c3a, 0x2c3b, 0x2c3c, 0x2c3d, 0x2c3e, 0x2c3f, 
+	0x2c40, 0x2c41, 0x2c42, 0x2c43, 0x2c44, 0x2c45, 0x2c46, 0x2c47, 
+	0x2c48, 0x2c49, 0x2c4a, 0x2c4b, 0x2c4c, 0x2c4d, 0x2c4e, 0x2c4f, 
+	0x2c50, 0x2c51, 0x2c52, 0x2c53, 0x2c54, 0x2c55, 0x2c56, 0x2c57, 
+	0x2c58, 0x2c59, 0x2c5a, 0x2c5b, 0x2c5c, 0x2c5d, 0x2c5e, 0x2c2f, 
+	0x2c30, 0x2c31, 0x2c32, 0x2c33, 0x2c34, 0x2c35, 0x2c36, 0x2c37, 
+	0x2c38, 0x2c39, 0x2c3a, 0x2c3b, 0x2c3c, 0x2c3d, 0x2c3e, 0x2c3f, 
+	};
+
+static const unsigned short gNormalizeTable2c40[] = {
+	/* U+2c40 */
+	0x2c40, 0x2c41, 0x2c42, 0x2c43, 0x2c44, 0x2c45, 0x2c46, 0x2c47, 
+	0x2c48, 0x2c49, 0x2c4a, 0x2c4b, 0x2c4c, 0x2c4d, 0x2c4e, 0x2c4f, 
+	0x2c50, 0x2c51, 0x2c52, 0x2c53, 0x2c54, 0x2c55, 0x2c56, 0x2c57, 
+	0x2c58, 0x2c59, 0x2c5a, 0x2c5b, 0x2c5c, 0x2c5d, 0x2c5e, 0x2c5f, 
+	0x2c61, 0x2c61, 0x026b, 0x1d7d, 0x027d, 0x2c65, 0x2c66, 0x2c68, 
+	0x2c68, 0x2c6a, 0x2c6a, 0x2c6c, 0x2c6c, 0x0251, 0x0271, 0x0250, 
+	0x0252, 0x2c71, 0x2c73, 0x2c73, 0x2c74, 0x2c76, 0x2c76, 0x2c77, 
+	0x2c78, 0x2c79, 0x2c7a, 0x2c7b, 0x006a, 0x0076, 0x023f, 0x0240, 
+	};
+
+static const unsigned short gNormalizeTable2c80[] = {
+	/* U+2c80 */
+	0x2c81, 0x2c81, 0x2c83, 0x2c83, 0x2c85, 0x2c85, 0x2c87, 0x2c87, 
+	0x2c89, 0x2c89, 0x2c8b, 0x2c8b, 0x2c8d, 0x2c8d, 0x2c8f, 0x2c8f, 
+	0x2c91, 0x2c91, 0x2c93, 0x2c93, 0x2c95, 0x2c95, 0x2c97, 0x2c97, 
+	0x2c99, 0x2c99, 0x2c9b, 0x2c9b, 0x2c9d, 0x2c9d, 0x2c9f, 0x2c9f, 
+	0x2ca1, 0x2ca1, 0x2ca3, 0x2ca3, 0x2ca5, 0x2ca5, 0x2ca7, 0x2ca7, 
+	0x2ca9, 0x2ca9, 0x2cab, 0x2cab, 0x2cad, 0x2cad, 0x2caf, 0x2caf, 
+	0x2cb1, 0x2cb1, 0x2cb3, 0x2cb3, 0x2cb5, 0x2cb5, 0x2cb7, 0x2cb7, 
+	0x2cb9, 0x2cb9, 0x2cbb, 0x2cbb, 0x2cbd, 0x2cbd, 0x2cbf, 0x2cbf, 
+	};
+
+static const unsigned short gNormalizeTable2cc0[] = {
+	/* U+2cc0 */
+	0x2cc1, 0x2cc1, 0x2cc3, 0x2cc3, 0x2cc5, 0x2cc5, 0x2cc7, 0x2cc7, 
+	0x2cc9, 0x2cc9, 0x2ccb, 0x2ccb, 0x2ccd, 0x2ccd, 0x2ccf, 0x2ccf, 
+	0x2cd1, 0x2cd1, 0x2cd3, 0x2cd3, 0x2cd5, 0x2cd5, 0x2cd7, 0x2cd7, 
+	0x2cd9, 0x2cd9, 0x2cdb, 0x2cdb, 0x2cdd, 0x2cdd, 0x2cdf, 0x2cdf, 
+	0x2ce1, 0x2ce1, 0x2ce3, 0x2ce3, 0x2ce4, 0x2ce5, 0x2ce6, 0x2ce7, 
+	0x2ce8, 0x2ce9, 0x2cea, 0x2cec, 0x2cec, 0x2cee, 0x2cee, 0x2cef, 
+	0x2cf0, 0x2cf1, 0x2cf2, 0x2cf3, 0x2cf4, 0x2cf5, 0x2cf6, 0x2cf7, 
+	0x2cf8, 0x2cf9, 0x2cfa, 0x2cfb, 0x2cfc, 0x2cfd, 0x2cfe, 0x2cff, 
+	};
+
+static const unsigned short gNormalizeTable2d40[] = {
+	/* U+2d40 */
+	0x2d40, 0x2d41, 0x2d42, 0x2d43, 0x2d44, 0x2d45, 0x2d46, 0x2d47, 
+	0x2d48, 0x2d49, 0x2d4a, 0x2d4b, 0x2d4c, 0x2d4d, 0x2d4e, 0x2d4f, 
+	0x2d50, 0x2d51, 0x2d52, 0x2d53, 0x2d54, 0x2d55, 0x2d56, 0x2d57, 
+	0x2d58, 0x2d59, 0x2d5a, 0x2d5b, 0x2d5c, 0x2d5d, 0x2d5e, 0x2d5f, 
+	0x2d60, 0x2d61, 0x2d62, 0x2d63, 0x2d64, 0x2d65, 0x2d66, 0x2d67, 
+	0x2d68, 0x2d69, 0x2d6a, 0x2d6b, 0x2d6c, 0x2d6d, 0x2d6e, 0x2d61, 
+	0x2d70, 0x2d71, 0x2d72, 0x2d73, 0x2d74, 0x2d75, 0x2d76, 0x2d77, 
+	0x2d78, 0x2d79, 0x2d7a, 0x2d7b, 0x2d7c, 0x2d7d, 0x2d7e, 0x2d7f, 
+	};
+
+static const unsigned short gNormalizeTable2e80[] = {
+	/* U+2e80 */
+	0x2e80, 0x2e81, 0x2e82, 0x2e83, 0x2e84, 0x2e85, 0x2e86, 0x2e87, 
+	0x2e88, 0x2e89, 0x2e8a, 0x2e8b, 0x2e8c, 0x2e8d, 0x2e8e, 0x2e8f, 
+	0x2e90, 0x2e91, 0x2e92, 0x2e93, 0x2e94, 0x2e95, 0x2e96, 0x2e97, 
+	0x2e98, 0x2e99, 0x2e9a, 0x2e9b, 0x2e9c, 0x2e9d, 0x2e9e, 0x6bcd, 
+	0x2ea0, 0x2ea1, 0x2ea2, 0x2ea3, 0x2ea4, 0x2ea5, 0x2ea6, 0x2ea7, 
+	0x2ea8, 0x2ea9, 0x2eaa, 0x2eab, 0x2eac, 0x2ead, 0x2eae, 0x2eaf, 
+	0x2eb0, 0x2eb1, 0x2eb2, 0x2eb3, 0x2eb4, 0x2eb5, 0x2eb6, 0x2eb7, 
+	0x2eb8, 0x2eb9, 0x2eba, 0x2ebb, 0x2ebc, 0x2ebd, 0x2ebe, 0x2ebf, 
+	};
+
+static const unsigned short gNormalizeTable2ec0[] = {
+	/* U+2ec0 */
+	0x2ec0, 0x2ec1, 0x2ec2, 0x2ec3, 0x2ec4, 0x2ec5, 0x2ec6, 0x2ec7, 
+	0x2ec8, 0x2ec9, 0x2eca, 0x2ecb, 0x2ecc, 0x2ecd, 0x2ece, 0x2ecf, 
+	0x2ed0, 0x2ed1, 0x2ed2, 0x2ed3, 0x2ed4, 0x2ed5, 0x2ed6, 0x2ed7, 
+	0x2ed8, 0x2ed9, 0x2eda, 0x2edb, 0x2edc, 0x2edd, 0x2ede, 0x2edf, 
+	0x2ee0, 0x2ee1, 0x2ee2, 0x2ee3, 0x2ee4, 0x2ee5, 0x2ee6, 0x2ee7, 
+	0x2ee8, 0x2ee9, 0x2eea, 0x2eeb, 0x2eec, 0x2eed, 0x2eee, 0x2eef, 
+	0x2ef0, 0x2ef1, 0x2ef2, 0x9f9f, 0x2ef4, 0x2ef5, 0x2ef6, 0x2ef7, 
+	0x2ef8, 0x2ef9, 0x2efa, 0x2efb, 0x2efc, 0x2efd, 0x2efe, 0x2eff, 
+	};
+
+static const unsigned short gNormalizeTable2f00[] = {
+	/* U+2f00 */
+	0x4e00, 0x4e28, 0x4e36, 0x4e3f, 0x4e59, 0x4e85, 0x4e8c, 0x4ea0, 
+	0x4eba, 0x513f, 0x5165, 0x516b, 0x5182, 0x5196, 0x51ab, 0x51e0, 
+	0x51f5, 0x5200, 0x529b, 0x52f9, 0x5315, 0x531a, 0x5338, 0x5341, 
+	0x535c, 0x5369, 0x5382, 0x53b6, 0x53c8, 0x53e3, 0x56d7, 0x571f, 
+	0x58eb, 0x5902, 0x590a, 0x5915, 0x5927, 0x5973, 0x5b50, 0x5b80, 
+	0x5bf8, 0x5c0f, 0x5c22, 0x5c38, 0x5c6e, 0x5c71, 0x5ddb, 0x5de5, 
+	0x5df1, 0x5dfe, 0x5e72, 0x5e7a, 0x5e7f, 0x5ef4, 0x5efe, 0x5f0b, 
+	0x5f13, 0x5f50, 0x5f61, 0x5f73, 0x5fc3, 0x6208, 0x6236, 0x624b, 
+	};
+
+static const unsigned short gNormalizeTable2f40[] = {
+	/* U+2f40 */
+	0x652f, 0x6534, 0x6587, 0x6597, 0x65a4, 0x65b9, 0x65e0, 0x65e5, 
+	0x66f0, 0x6708, 0x6728, 0x6b20, 0x6b62, 0x6b79, 0x6bb3, 0x6bcb, 
+	0x6bd4, 0x6bdb, 0x6c0f, 0x6c14, 0x6c34, 0x706b, 0x722a, 0x7236, 
+	0x723b, 0x723f, 0x7247, 0x7259, 0x725b, 0x72ac, 0x7384, 0x7389, 
+	0x74dc, 0x74e6, 0x7518, 0x751f, 0x7528, 0x7530, 0x758b, 0x7592, 
+	0x7676, 0x767d, 0x76ae, 0x76bf, 0x76ee, 0x77db, 0x77e2, 0x77f3, 
+	0x793a, 0x79b8, 0x79be, 0x7a74, 0x7acb, 0x7af9, 0x7c73, 0x7cf8, 
+	0x7f36, 0x7f51, 0x7f8a, 0x7fbd, 0x8001, 0x800c, 0x8012, 0x8033, 
+	};
+
+static const unsigned short gNormalizeTable2f80[] = {
+	/* U+2f80 */
+	0x807f, 0x8089, 0x81e3, 0x81ea, 0x81f3, 0x81fc, 0x820c, 0x821b, 
+	0x821f, 0x826e, 0x8272, 0x8278, 0x864d, 0x866b, 0x8840, 0x884c, 
+	0x8863, 0x897e, 0x898b, 0x89d2, 0x8a00, 0x8c37, 0x8c46, 0x8c55, 
+	0x8c78, 0x8c9d, 0x8d64, 0x8d70, 0x8db3, 0x8eab, 0x8eca, 0x8f9b, 
+	0x8fb0, 0x8fb5, 0x9091, 0x9149, 0x91c6, 0x91cc, 0x91d1, 0x9577, 
+	0x9580, 0x961c, 0x96b6, 0x96b9, 0x96e8, 0x9751, 0x975e, 0x9762, 
+	0x9769, 0x97cb, 0x97ed, 0x97f3, 0x9801, 0x98a8, 0x98db, 0x98df, 
+	0x9996, 0x9999, 0x99ac, 0x9aa8, 0x9ad8, 0x9adf, 0x9b25, 0x9b2f, 
+	};
+
+static const unsigned short gNormalizeTable2fc0[] = {
+	/* U+2fc0 */
+	0x9b32, 0x9b3c, 0x9b5a, 0x9ce5, 0x9e75, 0x9e7f, 0x9ea5, 0x9ebb, 
+	0x9ec3, 0x9ecd, 0x9ed1, 0x9ef9, 0x9efd, 0x9f0e, 0x9f13, 0x9f20, 
+	0x9f3b, 0x9f4a, 0x9f52, 0x9f8d, 0x9f9c, 0x9fa0, 0x2fd6, 0x2fd7, 
+	0x2fd8, 0x2fd9, 0x2fda, 0x2fdb, 0x2fdc, 0x2fdd, 0x2fde, 0x2fdf, 
+	0x2fe0, 0x2fe1, 0x2fe2, 0x2fe3, 0x2fe4, 0x2fe5, 0x2fe6, 0x2fe7, 
+	0x2fe8, 0x2fe9, 0x2fea, 0x2feb, 0x2fec, 0x2fed, 0x2fee, 0x2fef, 
+	0x2ff0, 0x2ff1, 0x2ff2, 0x2ff3, 0x2ff4, 0x2ff5, 0x2ff6, 0x2ff7, 
+	0x2ff8, 0x2ff9, 0x2ffa, 0x2ffb, 0x2ffc, 0x2ffd, 0x2ffe, 0x2fff, 
+	};
+
+static const unsigned short gNormalizeTable3000[] = {
+	/* U+3000 */
+	0x0020, 0x3001, 0x3002, 0x3003, 0x3004, 0x3005, 0x3006, 0x3007, 
+	0x3008, 0x3009, 0x300a, 0x300b, 0x300c, 0x300d, 0x300e, 0x300f, 
+	0x3010, 0x3011, 0x3012, 0x3013, 0x3014, 0x3015, 0x3016, 0x3017, 
+	0x3018, 0x3019, 0x301a, 0x301b, 0x301c, 0x301d, 0x301e, 0x301f, 
+	0x3020, 0x3021, 0x3022, 0x3023, 0x3024, 0x3025, 0x3026, 0x3027, 
+	0x3028, 0x3029, 0x302a, 0x302b, 0x302c, 0x302d, 0x302e, 0x302f, 
+	0x3030, 0x3031, 0x3032, 0x3033, 0x3034, 0x3035, 0x3012, 0x3037, 
+	0x5341, 0x5344, 0x5345, 0x303b, 0x303c, 0x303d, 0x303e, 0x303f, 
+	};
+
+static const unsigned short gNormalizeTable3040[] = {
+	/* U+3040 */
+	0x3040, 0x3041, 0x3042, 0x3043, 0x3044, 0x3045, 0x3046, 0x3047, 
+	0x3048, 0x3049, 0x304a, 0x304b, 0x304b, 0x304d, 0x304d, 0x304f, 
+	0x304f, 0x3051, 0x3051, 0x3053, 0x3053, 0x3055, 0x3055, 0x3057, 
+	0x3057, 0x3059, 0x3059, 0x305b, 0x305b, 0x305d, 0x305d, 0x305f, 
+	0x305f, 0x3061, 0x3061, 0x3063, 0x3064, 0x3064, 0x3066, 0x3066, 
+	0x3068, 0x3068, 0x306a, 0x306b, 0x306c, 0x306d, 0x306e, 0x306f, 
+	0x306f, 0x306f, 0x3072, 0x3072, 0x3072, 0x3075, 0x3075, 0x3075, 
+	0x3078, 0x3078, 0x3078, 0x307b, 0x307b, 0x307b, 0x307e, 0x307f, 
+	};
+
+static const unsigned short gNormalizeTable3080[] = {
+	/* U+3080 */
+	0x3080, 0x3081, 0x3082, 0x3083, 0x3084, 0x3085, 0x3086, 0x3087, 
+	0x3088, 0x3089, 0x308a, 0x308b, 0x308c, 0x308d, 0x308e, 0x308f, 
+	0x3090, 0x3091, 0x3092, 0x3093, 0x3046, 0x3095, 0x3096, 0x3097, 
+	0x3098, 0x3099, 0x309a, 0x0020, 0x0020, 0x309d, 0x309d, 0x3088, 
+	0x30a0, 0x30a1, 0x30a2, 0x30a3, 0x30a4, 0x30a5, 0x30a6, 0x30a7, 
+	0x30a8, 0x30a9, 0x30aa, 0x30ab, 0x30ab, 0x30ad, 0x30ad, 0x30af, 
+	0x30af, 0x30b1, 0x30b1, 0x30b3, 0x30b3, 0x30b5, 0x30b5, 0x30b7, 
+	0x30b7, 0x30b9, 0x30b9, 0x30bb, 0x30bb, 0x30bd, 0x30bd, 0x30bf, 
+	};
+
+static const unsigned short gNormalizeTable30c0[] = {
+	/* U+30c0 */
+	0x30bf, 0x30c1, 0x30c1, 0x30c3, 0x30c4, 0x30c4, 0x30c6, 0x30c6, 
+	0x30c8, 0x30c8, 0x30ca, 0x30cb, 0x30cc, 0x30cd, 0x30ce, 0x30cf, 
+	0x30cf, 0x30cf, 0x30d2, 0x30d2, 0x30d2, 0x30d5, 0x30d5, 0x30d5, 
+	0x30d8, 0x30d8, 0x30d8, 0x30db, 0x30db, 0x30db, 0x30de, 0x30df, 
+	0x30e0, 0x30e1, 0x30e2, 0x30e3, 0x30e4, 0x30e5, 0x30e6, 0x30e7, 
+	0x30e8, 0x30e9, 0x30ea, 0x30eb, 0x30ec, 0x30ed, 0x30ee, 0x30ef, 
+	0x30f0, 0x30f1, 0x30f2, 0x30f3, 0x30a6, 0x30f5, 0x30f6, 0x30ef, 
+	0x30f0, 0x30f1, 0x30f2, 0x30fb, 0x30fc, 0x30fd, 0x30fd, 0x30b3, 
+	};
+
+static const unsigned short gNormalizeTable3100[] = {
+	/* U+3100 */
+	0x3100, 0x3101, 0x3102, 0x3103, 0x3104, 0x3105, 0x3106, 0x3107, 
+	0x3108, 0x3109, 0x310a, 0x310b, 0x310c, 0x310d, 0x310e, 0x310f, 
+	0x3110, 0x3111, 0x3112, 0x3113, 0x3114, 0x3115, 0x3116, 0x3117, 
+	0x3118, 0x3119, 0x311a, 0x311b, 0x311c, 0x311d, 0x311e, 0x311f, 
+	0x3120, 0x3121, 0x3122, 0x3123, 0x3124, 0x3125, 0x3126, 0x3127, 
+	0x3128, 0x3129, 0x312a, 0x312b, 0x312c, 0x312d, 0x312e, 0x312f, 
+	0x3130, 0x1100, 0x1101, 0x11aa, 0x1102, 0x11ac, 0x11ad, 0x1103, 
+	0x1104, 0x1105, 0x11b0, 0x11b1, 0x11b2, 0x11b3, 0x11b4, 0x11b5, 
+	};
+
+static const unsigned short gNormalizeTable3140[] = {
+	/* U+3140 */
+	0x111a, 0x1106, 0x1107, 0x1108, 0x1121, 0x1109, 0x110a, 0x110b, 
+	0x110c, 0x110d, 0x110e, 0x110f, 0x1110, 0x1111, 0x1112, 0x1161, 
+	0x1162, 0x1163, 0x1164, 0x1165, 0x1166, 0x1167, 0x1168, 0x1169, 
+	0x116a, 0x116b, 0x116c, 0x116d, 0x116e, 0x116f, 0x1170, 0x1171, 
+	0x1172, 0x1173, 0x1174, 0x1175, 0x0020, 0x1114, 0x1115, 0x11c7, 
+	0x11c8, 0x11cc, 0x11ce, 0x11d3, 0x11d7, 0x11d9, 0x111c, 0x11dd, 
+	0x11df, 0x111d, 0x111e, 0x1120, 0x1122, 0x1123, 0x1127, 0x1129, 
+	0x112b, 0x112c, 0x112d, 0x112e, 0x112f, 0x1132, 0x1136, 0x1140, 
+	};
+
+static const unsigned short gNormalizeTable3180[] = {
+	/* U+3180 */
+	0x1147, 0x114c, 0x11f1, 0x11f2, 0x1157, 0x1158, 0x1159, 0x1184, 
+	0x1185, 0x1188, 0x1191, 0x1192, 0x1194, 0x119e, 0x11a1, 0x318f, 
+	0x3190, 0x3191, 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e0a, 0x4e2d, 
+	0x4e0b, 0x7532, 0x4e59, 0x4e19, 0x4e01, 0x5929, 0x5730, 0x4eba, 
+	0x31a0, 0x31a1, 0x31a2, 0x31a3, 0x31a4, 0x31a5, 0x31a6, 0x31a7, 
+	0x31a8, 0x31a9, 0x31aa, 0x31ab, 0x31ac, 0x31ad, 0x31ae, 0x31af, 
+	0x31b0, 0x31b1, 0x31b2, 0x31b3, 0x31b4, 0x31b5, 0x31b6, 0x31b7, 
+	0x31b8, 0x31b9, 0x31ba, 0x31bb, 0x31bc, 0x31bd, 0x31be, 0x31bf, 
+	};
+
+static const unsigned short gNormalizeTable3200[] = {
+	/* U+3200 */
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x321f, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 0x0028, 
+	};
+
+static const unsigned short gNormalizeTable3240[] = {
+	/* U+3240 */
+	0x0028, 0x0028, 0x0028, 0x0028, 0x554f, 0x5e7c, 0x6587, 0x7b8f, 
+	0x3248, 0x3249, 0x324a, 0x324b, 0x324c, 0x324d, 0x324e, 0x324f, 
+	0x0070, 0x0032, 0x0032, 0x0032, 0x0032, 0x0032, 0x0032, 0x0032, 
+	0x0032, 0x0032, 0x0033, 0x0033, 0x0033, 0x0033, 0x0033, 0x0033, 
+	0x1100, 0x1102, 0x1103, 0x1105, 0x1106, 0x1107, 0x1109, 0x110b, 
+	0x110c, 0x110e, 0x110f, 0x1110, 0x1111, 0x1112, 0x1100, 0x1102, 
+	0x1103, 0x1105, 0x1106, 0x1107, 0x1109, 0x110b, 0x110c, 0x110e, 
+	0x110f, 0x1110, 0x1111, 0x1112, 0x110e, 0x110c, 0x110b, 0x327f, 
+	};
+
+static const unsigned short gNormalizeTable3280[] = {
+	/* U+3280 */
+	0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b, 
+	0x4e5d, 0x5341, 0x6708, 0x706b, 0x6c34, 0x6728, 0x91d1, 0x571f, 
+	0x65e5, 0x682a, 0x6709, 0x793e, 0x540d, 0x7279, 0x8ca1, 0x795d, 
+	0x52b4, 0x79d8, 0x7537, 0x5973, 0x9069, 0x512a, 0x5370, 0x6ce8, 
+	0x9805, 0x4f11, 0x5199, 0x6b63, 0x4e0a, 0x4e2d, 0x4e0b, 0x5de6, 
+	0x53f3, 0x533b, 0x5b97, 0x5b66, 0x76e3, 0x4f01, 0x8cc7, 0x5354, 
+	0x591c, 0x0033, 0x0033, 0x0033, 0x0033, 0x0034, 0x0034, 0x0034, 
+	0x0034, 0x0034, 0x0034, 0x0034, 0x0034, 0x0034, 0x0034, 0x0035, 
+	};
+
+static const unsigned short gNormalizeTable32c0[] = {
+	/* U+32c0 */
+	0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 
+	0x0039, 0x0031, 0x0031, 0x0031, 0x0068, 0x0065, 0x0065, 0x006c, 
+	0x30a2, 0x30a4, 0x30a6, 0x30a8, 0x30aa, 0x30ab, 0x30ad, 0x30af, 
+	0x30b1, 0x30b3, 0x30b5, 0x30b7, 0x30b9, 0x30bb, 0x30bd, 0x30bf, 
+	0x30c1, 0x30c4, 0x30c6, 0x30c8, 0x30ca, 0x30cb, 0x30cc, 0x30cd, 
+	0x30ce, 0x30cf, 0x30d2, 0x30d5, 0x30d8, 0x30db, 0x30de, 0x30df, 
+	0x30e0, 0x30e1, 0x30e2, 0x30e4, 0x30e6, 0x30e8, 0x30e9, 0x30ea, 
+	0x30eb, 0x30ec, 0x30ed, 0x30ef, 0x30f0, 0x30f1, 0x30f2, 0x32ff, 
+	};
+
+static const unsigned short gNormalizeTable3300[] = {
+	/* U+3300 */
+	0x30a2, 0x30a2, 0x30a2, 0x30a2, 0x30a4, 0x30a4, 0x30a6, 0x30a8, 
+	0x30a8, 0x30aa, 0x30aa, 0x30ab, 0x30ab, 0x30ab, 0x30ab, 0x30ab, 
+	0x30ad, 0x30ad, 0x30ad, 0x30ad, 0x30ad, 0x30ad, 0x30ad, 0x30ad, 
+	0x30af, 0x30af, 0x30af, 0x30af, 0x30b1, 0x30b3, 0x30b3, 0x30b5, 
+	0x30b5, 0x30b7, 0x30bb, 0x30bb, 0x30bf, 0x30c6, 0x30c8, 0x30c8, 
+	0x30ca, 0x30ce, 0x30cf, 0x30cf, 0x30cf, 0x30cf, 0x30d2, 0x30d2, 
+	0x30d2, 0x30d2, 0x30d5, 0x30d5, 0x30d5, 0x30d5, 0x30d8, 0x30d8, 
+	0x30d8, 0x30d8, 0x30d8, 0x30d8, 0x30d8, 0x30db, 0x30db, 0x30db, 
+	};
+
+static const unsigned short gNormalizeTable3340[] = {
+	/* U+3340 */
+	0x30db, 0x30db, 0x30db, 0x30de, 0x30de, 0x30de, 0x30de, 0x30de, 
+	0x30df, 0x30df, 0x30df, 0x30e1, 0x30e1, 0x30e1, 0x30e4, 0x30e4, 
+	0x30e6, 0x30ea, 0x30ea, 0x30eb, 0x30eb, 0x30ec, 0x30ec, 0x30ef, 
+	0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 
+	0x0031, 0x0031, 0x0031, 0x0031, 0x0032, 0x0032, 0x0032, 0x0032, 
+	0x0032, 0x0068, 0x0064, 0x0061, 0x0062, 0x006f, 0x0070, 0x0064, 
+	0x0064, 0x0064, 0x0069, 0x5e73, 0x662d, 0x5927, 0x660e, 0x682a, 
+	};
+
+static const unsigned short gNormalizeTable3380[] = {
+	/* U+3380 */
+	0x0070, 0x006e, 0x03bc, 0x006d, 0x006b, 0x006b, 0x006d, 0x0067, 
+	0x0063, 0x006b, 0x0070, 0x006e, 0x03bc, 0x03bc, 0x006d, 0x006b, 
+	0x0068, 0x006b, 0x006d, 0x0067, 0x0074, 0x03bc, 0x006d, 0x0064, 
+	0x006b, 0x0066, 0x006e, 0x03bc, 0x006d, 0x0063, 0x006b, 0x006d, 
+	0x0063, 0x006d, 0x006b, 0x006d, 0x0063, 0x006d, 0x006b, 0x006d, 
+	0x006d, 0x0070, 0x006b, 0x006d, 0x0067, 0x0072, 0x0072, 0x0072, 
+	0x0070, 0x006e, 0x03bc, 0x006d, 0x0070, 0x006e, 0x03bc, 0x006d, 
+	0x006b, 0x006d, 0x0070, 0x006e, 0x03bc, 0x006d, 0x006b, 0x006d, 
+	};
+
+static const unsigned short gNormalizeTable33c0[] = {
+	/* U+33c0 */
+	0x006b, 0x006d, 0x0061, 0x0062, 0x0063, 0x0063, 0x0063, 0x0063, 
+	0x0064, 0x0067, 0x0068, 0x0068, 0x0069, 0x006b, 0x006b, 0x006b, 
+	0x006c, 0x006c, 0x006c, 0x006c, 0x006d, 0x006d, 0x006d, 0x0070, 
+	0x0070, 0x0070, 0x0070, 0x0073, 0x0073, 0x0077, 0x0076, 0x0061, 
+	0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 
+	0x0039, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 0x0031, 
+	0x0031, 0x0031, 0x0031, 0x0032, 0x0032, 0x0032, 0x0032, 0x0032, 
+	0x0032, 0x0032, 0x0032, 0x0032, 0x0032, 0x0033, 0x0033, 0x0067, 
+	};
+
+static const unsigned short gNormalizeTablea640[] = {
+	/* U+a640 */
+	0xa641, 0xa641, 0xa643, 0xa643, 0xa645, 0xa645, 0xa647, 0xa647, 
+	0xa649, 0xa649, 0xa64b, 0xa64b, 0xa64d, 0xa64d, 0xa64f, 0xa64f, 
+	0xa651, 0xa651, 0xa653, 0xa653, 0xa655, 0xa655, 0xa657, 0xa657, 
+	0xa659, 0xa659, 0xa65b, 0xa65b, 0xa65d, 0xa65d, 0xa65f, 0xa65f, 
+	0xa660, 0xa661, 0xa663, 0xa663, 0xa665, 0xa665, 0xa667, 0xa667, 
+	0xa669, 0xa669, 0xa66b, 0xa66b, 0xa66d, 0xa66d, 0xa66e, 0xa66f, 
+	0xa670, 0xa671, 0xa672, 0xa673, 0xa674, 0xa675, 0xa676, 0xa677, 
+	0xa678, 0xa679, 0xa67a, 0xa67b, 0xa67c, 0xa67d, 0xa67e, 0xa67f, 
+	};
+
+static const unsigned short gNormalizeTablea680[] = {
+	/* U+a680 */
+	0xa681, 0xa681, 0xa683, 0xa683, 0xa685, 0xa685, 0xa687, 0xa687, 
+	0xa689, 0xa689, 0xa68b, 0xa68b, 0xa68d, 0xa68d, 0xa68f, 0xa68f, 
+	0xa691, 0xa691, 0xa693, 0xa693, 0xa695, 0xa695, 0xa697, 0xa697, 
+	0xa698, 0xa699, 0xa69a, 0xa69b, 0xa69c, 0xa69d, 0xa69e, 0xa69f, 
+	0xa6a0, 0xa6a1, 0xa6a2, 0xa6a3, 0xa6a4, 0xa6a5, 0xa6a6, 0xa6a7, 
+	0xa6a8, 0xa6a9, 0xa6aa, 0xa6ab, 0xa6ac, 0xa6ad, 0xa6ae, 0xa6af, 
+	0xa6b0, 0xa6b1, 0xa6b2, 0xa6b3, 0xa6b4, 0xa6b5, 0xa6b6, 0xa6b7, 
+	0xa6b8, 0xa6b9, 0xa6ba, 0xa6bb, 0xa6bc, 0xa6bd, 0xa6be, 0xa6bf, 
+	};
+
+static const unsigned short gNormalizeTablea700[] = {
+	/* U+a700 */
+	0xa700, 0xa701, 0xa702, 0xa703, 0xa704, 0xa705, 0xa706, 0xa707, 
+	0xa708, 0xa709, 0xa70a, 0xa70b, 0xa70c, 0xa70d, 0xa70e, 0xa70f, 
+	0xa710, 0xa711, 0xa712, 0xa713, 0xa714, 0xa715, 0xa716, 0xa717, 
+	0xa718, 0xa719, 0xa71a, 0xa71b, 0xa71c, 0xa71d, 0xa71e, 0xa71f, 
+	0xa720, 0xa721, 0xa723, 0xa723, 0xa725, 0xa725, 0xa727, 0xa727, 
+	0xa729, 0xa729, 0xa72b, 0xa72b, 0xa72d, 0xa72d, 0xa72f, 0xa72f, 
+	0xa730, 0xa731, 0xa733, 0xa733, 0xa735, 0xa735, 0xa737, 0xa737, 
+	0xa739, 0xa739, 0xa73b, 0xa73b, 0xa73d, 0xa73d, 0xa73f, 0xa73f, 
+	};
+
+static const unsigned short gNormalizeTablea740[] = {
+	/* U+a740 */
+	0xa741, 0xa741, 0xa743, 0xa743, 0xa745, 0xa745, 0xa747, 0xa747, 
+	0xa749, 0xa749, 0xa74b, 0xa74b, 0xa74d, 0xa74d, 0xa74f, 0xa74f, 
+	0xa751, 0xa751, 0xa753, 0xa753, 0xa755, 0xa755, 0xa757, 0xa757, 
+	0xa759, 0xa759, 0xa75b, 0xa75b, 0xa75d, 0xa75d, 0xa75f, 0xa75f, 
+	0xa761, 0xa761, 0xa763, 0xa763, 0xa765, 0xa765, 0xa767, 0xa767, 
+	0xa769, 0xa769, 0xa76b, 0xa76b, 0xa76d, 0xa76d, 0xa76f, 0xa76f, 
+	0xa76f, 0xa771, 0xa772, 0xa773, 0xa774, 0xa775, 0xa776, 0xa777, 
+	0xa778, 0xa77a, 0xa77a, 0xa77c, 0xa77c, 0x1d79, 0xa77f, 0xa77f, 
+	};
+
+static const unsigned short gNormalizeTablea780[] = {
+	/* U+a780 */
+	0xa781, 0xa781, 0xa783, 0xa783, 0xa785, 0xa785, 0xa787, 0xa787, 
+	0xa788, 0xa789, 0xa78a, 0xa78c, 0xa78c, 0xa78d, 0xa78e, 0xa78f, 
+	0xa790, 0xa791, 0xa792, 0xa793, 0xa794, 0xa795, 0xa796, 0xa797, 
+	0xa798, 0xa799, 0xa79a, 0xa79b, 0xa79c, 0xa79d, 0xa79e, 0xa79f, 
+	0xa7a0, 0xa7a1, 0xa7a2, 0xa7a3, 0xa7a4, 0xa7a5, 0xa7a6, 0xa7a7, 
+	0xa7a8, 0xa7a9, 0xa7aa, 0xa7ab, 0xa7ac, 0xa7ad, 0xa7ae, 0xa7af, 
+	0xa7b0, 0xa7b1, 0xa7b2, 0xa7b3, 0xa7b4, 0xa7b5, 0xa7b6, 0xa7b7, 
+	0xa7b8, 0xa7b9, 0xa7ba, 0xa7bb, 0xa7bc, 0xa7bd, 0xa7be, 0xa7bf, 
+	};
+
+static const unsigned short gNormalizeTablef900[] = {
+	/* U+f900 */
+	0x8c48, 0x66f4, 0x8eca, 0x8cc8, 0x6ed1, 0x4e32, 0x53e5, 0x9f9c, 
+	0x9f9c, 0x5951, 0x91d1, 0x5587, 0x5948, 0x61f6, 0x7669, 0x7f85, 
+	0x863f, 0x87ba, 0x88f8, 0x908f, 0x6a02, 0x6d1b, 0x70d9, 0x73de, 
+	0x843d, 0x916a, 0x99f1, 0x4e82, 0x5375, 0x6b04, 0x721b, 0x862d, 
+	0x9e1e, 0x5d50, 0x6feb, 0x85cd, 0x8964, 0x62c9, 0x81d8, 0x881f, 
+	0x5eca, 0x6717, 0x6d6a, 0x72fc, 0x90ce, 0x4f86, 0x51b7, 0x52de, 
+	0x64c4, 0x6ad3, 0x7210, 0x76e7, 0x8001, 0x8606, 0x865c, 0x8def, 
+	0x9732, 0x9b6f, 0x9dfa, 0x788c, 0x797f, 0x7da0, 0x83c9, 0x9304, 
+	};
+
+static const unsigned short gNormalizeTablef940[] = {
+	/* U+f940 */
+	0x9e7f, 0x8ad6, 0x58df, 0x5f04, 0x7c60, 0x807e, 0x7262, 0x78ca, 
+	0x8cc2, 0x96f7, 0x58d8, 0x5c62, 0x6a13, 0x6dda, 0x6f0f, 0x7d2f, 
+	0x7e37, 0x964b, 0x52d2, 0x808b, 0x51dc, 0x51cc, 0x7a1c, 0x7dbe, 
+	0x83f1, 0x9675, 0x8b80, 0x62cf, 0x6a02, 0x8afe, 0x4e39, 0x5be7, 
+	0x6012, 0x7387, 0x7570, 0x5317, 0x78fb, 0x4fbf, 0x5fa9, 0x4e0d, 
+	0x6ccc, 0x6578, 0x7d22, 0x53c3, 0x585e, 0x7701, 0x8449, 0x8aaa, 
+	0x6bba, 0x8fb0, 0x6c88, 0x62fe, 0x82e5, 0x63a0, 0x7565, 0x4eae, 
+	0x5169, 0x51c9, 0x6881, 0x7ce7, 0x826f, 0x8ad2, 0x91cf, 0x52f5, 
+	};
+
+static const unsigned short gNormalizeTablef980[] = {
+	/* U+f980 */
+	0x5442, 0x5973, 0x5eec, 0x65c5, 0x6ffe, 0x792a, 0x95ad, 0x9a6a, 
+	0x9e97, 0x9ece, 0x529b, 0x66c6, 0x6b77, 0x8f62, 0x5e74, 0x6190, 
+	0x6200, 0x649a, 0x6f23, 0x7149, 0x7489, 0x79ca, 0x7df4, 0x806f, 
+	0x8f26, 0x84ee, 0x9023, 0x934a, 0x5217, 0x52a3, 0x54bd, 0x70c8, 
+	0x88c2, 0x8aaa, 0x5ec9, 0x5ff5, 0x637b, 0x6bae, 0x7c3e, 0x7375, 
+	0x4ee4, 0x56f9, 0x5be7, 0x5dba, 0x601c, 0x73b2, 0x7469, 0x7f9a, 
+	0x8046, 0x9234, 0x96f6, 0x9748, 0x9818, 0x4f8b, 0x79ae, 0x91b4, 
+	0x96b8, 0x60e1, 0x4e86, 0x50da, 0x5bee, 0x5c3f, 0x6599, 0x6a02, 
+	};
+
+static const unsigned short gNormalizeTablef9c0[] = {
+	/* U+f9c0 */
+	0x71ce, 0x7642, 0x84fc, 0x907c, 0x9f8d, 0x6688, 0x962e, 0x5289, 
+	0x677b, 0x67f3, 0x6d41, 0x6e9c, 0x7409, 0x7559, 0x786b, 0x7d10, 
+	0x985e, 0x516d, 0x622e, 0x9678, 0x502b, 0x5d19, 0x6dea, 0x8f2a, 
+	0x5f8b, 0x6144, 0x6817, 0x7387, 0x9686, 0x5229, 0x540f, 0x5c65, 
+	0x6613, 0x674e, 0x68a8, 0x6ce5, 0x7406, 0x75e2, 0x7f79, 0x88cf, 
+	0x88e1, 0x91cc, 0x96e2, 0x533f, 0x6eba, 0x541d, 0x71d0, 0x7498, 
+	0x85fa, 0x96a3, 0x9c57, 0x9e9f, 0x6797, 0x6dcb, 0x81e8, 0x7acb, 
+	0x7b20, 0x7c92, 0x72c0, 0x7099, 0x8b58, 0x4ec0, 0x8336, 0x523a, 
+	};
+
+static const unsigned short gNormalizeTablefa00[] = {
+	/* U+fa00 */
+	0x5207, 0x5ea6, 0x62d3, 0x7cd6, 0x5b85, 0x6d1e, 0x66b4, 0x8f3b, 
+	0x884c, 0x964d, 0x898b, 0x5ed3, 0x5140, 0x55c0, 0xfa0e, 0xfa0f, 
+	0x585a, 0xfa11, 0x6674, 0xfa13, 0xfa14, 0x51de, 0x732a, 0x76ca, 
+	0x793c, 0x795e, 0x7965, 0x798f, 0x9756, 0x7cbe, 0x7fbd, 0xfa1f, 
+	0x8612, 0xfa21, 0x8af8, 0xfa23, 0xfa24, 0x9038, 0x90fd, 0xfa27, 
+	0xfa28, 0xfa29, 0x98ef, 0x98fc, 0x9928, 0x9db4, 0xfa2e, 0xfa2f, 
+	0x4fae, 0x50e7, 0x514d, 0x52c9, 0x52e4, 0x5351, 0x559d, 0x5606, 
+	0x5668, 0x5840, 0x58a8, 0x5c64, 0x5c6e, 0x6094, 0x6168, 0x618e, 
+	};
+
+static const unsigned short gNormalizeTablefa40[] = {
+	/* U+fa40 */
+	0x61f2, 0x654f, 0x65e2, 0x6691, 0x6885, 0x6d77, 0x6e1a, 0x6f22, 
+	0x716e, 0x722b, 0x7422, 0x7891, 0x793e, 0x7949, 0x7948, 0x7950, 
+	0x7956, 0x795d, 0x798d, 0x798e, 0x7a40, 0x7a81, 0x7bc0, 0x7df4, 
+	0x7e09, 0x7e41, 0x7f72, 0x8005, 0x81ed, 0x8279, 0x8279, 0x8457, 
+	0x8910, 0x8996, 0x8b01, 0x8b39, 0x8cd3, 0x8d08, 0x8fb6, 0x9038, 
+	0x96e3, 0x97ff, 0x983b, 0x6075, 0xfa6c, 0x8218, 0xfa6e, 0xfa6f, 
+	0x4e26, 0x51b5, 0x5168, 0x4f80, 0x5145, 0x5180, 0x52c7, 0x52fa, 
+	0x559d, 0x5555, 0x5599, 0x55e2, 0x585a, 0x58b3, 0x5944, 0x5954, 
+	};
+
+static const unsigned short gNormalizeTablefa80[] = {
+	/* U+fa80 */
+	0x5a62, 0x5b28, 0x5ed2, 0x5ed9, 0x5f69, 0x5fad, 0x60d8, 0x614e, 
+	0x6108, 0x618e, 0x6160, 0x61f2, 0x6234, 0x63c4, 0x641c, 0x6452, 
+	0x6556, 0x6674, 0x6717, 0x671b, 0x6756, 0x6b79, 0x6bba, 0x6d41, 
+	0x6edb, 0x6ecb, 0x6f22, 0x701e, 0x716e, 0x77a7, 0x7235, 0x72af, 
+	0x732a, 0x7471, 0x7506, 0x753b, 0x761d, 0x761f, 0x76ca, 0x76db, 
+	0x76f4, 0x774a, 0x7740, 0x78cc, 0x7ab1, 0x7bc0, 0x7c7b, 0x7d5b, 
+	0x7df4, 0x7f3e, 0x8005, 0x8352, 0x83ef, 0x8779, 0x8941, 0x8986, 
+	0x8996, 0x8abf, 0x8af8, 0x8acb, 0x8b01, 0x8afe, 0x8aed, 0x8b39, 
+	};
+
+static const unsigned short gNormalizeTablefac0[] = {
+	/* U+fac0 */
+	0x8b8a, 0x8d08, 0x8f38, 0x9072, 0x9199, 0x9276, 0x967c, 0x96e3, 
+	0x9756, 0x97db, 0x97ff, 0x980b, 0x983b, 0x9b12, 0x9f9c, 0xfacf, 
+	0xfad0, 0xfad1, 0x3b9d, 0x4018, 0x4039, 0xfad5, 0xfad6, 0xfad7, 
+	0x9f43, 0x9f8e, 0xfada, 0xfadb, 0xfadc, 0xfadd, 0xfade, 0xfadf, 
+	0xfae0, 0xfae1, 0xfae2, 0xfae3, 0xfae4, 0xfae5, 0xfae6, 0xfae7, 
+	0xfae8, 0xfae9, 0xfaea, 0xfaeb, 0xfaec, 0xfaed, 0xfaee, 0xfaef, 
+	0xfaf0, 0xfaf1, 0xfaf2, 0xfaf3, 0xfaf4, 0xfaf5, 0xfaf6, 0xfaf7, 
+	0xfaf8, 0xfaf9, 0xfafa, 0xfafb, 0xfafc, 0xfafd, 0xfafe, 0xfaff, 
+	};
+
+static const unsigned short gNormalizeTablefb00[] = {
+	/* U+fb00 */
+	0x0066, 0x0066, 0x0066, 0x0066, 0x0066, 0x0073, 0x0073, 0xfb07, 
+	0xfb08, 0xfb09, 0xfb0a, 0xfb0b, 0xfb0c, 0xfb0d, 0xfb0e, 0xfb0f, 
+	0xfb10, 0xfb11, 0xfb12, 0x0574, 0x0574, 0x0574, 0x057e, 0x0574, 
+	0xfb18, 0xfb19, 0xfb1a, 0xfb1b, 0xfb1c, 0x05d9, 0xfb1e, 0x05f2, 
+	0x05e2, 0x05d0, 0x05d3, 0x05d4, 0x05db, 0x05dc, 0x05dd, 0x05e8, 
+	0x05ea, 0x002b, 0x05e9, 0x05e9, 0x05e9, 0x05e9, 0x05d0, 0x05d0, 
+	0x05d0, 0x05d1, 0x05d2, 0x05d3, 0x05d4, 0x05d5, 0x05d6, 0xfb37, 
+	0x05d8, 0x05d9, 0x05da, 0x05db, 0x05dc, 0xfb3d, 0x05de, 0xfb3f, 
+	};
+
+static const unsigned short gNormalizeTablefb40[] = {
+	/* U+fb40 */
+	0x05e0, 0x05e1, 0xfb42, 0x05e3, 0x05e4, 0xfb45, 0x05e6, 0x05e7, 
+	0x05e8, 0x05e9, 0x05ea, 0x05d5, 0x05d1, 0x05db, 0x05e4, 0x05d0, 
+	0x0671, 0x0671, 0x067b, 0x067b, 0x067b, 0x067b, 0x067e, 0x067e, 
+	0x067e, 0x067e, 0x0680, 0x0680, 0x0680, 0x0680, 0x067a, 0x067a, 
+	0x067a, 0x067a, 0x067f, 0x067f, 0x067f, 0x067f, 0x0679, 0x0679, 
+	0x0679, 0x0679, 0x06a4, 0x06a4, 0x06a4, 0x06a4, 0x06a6, 0x06a6, 
+	0x06a6, 0x06a6, 0x0684, 0x0684, 0x0684, 0x0684, 0x0683, 0x0683, 
+	0x0683, 0x0683, 0x0686, 0x0686, 0x0686, 0x0686, 0x0687, 0x0687, 
+	};
+
+static const unsigned short gNormalizeTablefb80[] = {
+	/* U+fb80 */
+	0x0687, 0x0687, 0x068d, 0x068d, 0x068c, 0x068c, 0x068e, 0x068e, 
+	0x0688, 0x0688, 0x0698, 0x0698, 0x0691, 0x0691, 0x06a9, 0x06a9, 
+	0x06a9, 0x06a9, 0x06af, 0x06af, 0x06af, 0x06af, 0x06b3, 0x06b3, 
+	0x06b3, 0x06b3, 0x06b1, 0x06b1, 0x06b1, 0x06b1, 0x06ba, 0x06ba, 
+	0x06bb, 0x06bb, 0x06bb, 0x06bb, 0x06d5, 0x06d5, 0x06c1, 0x06c1, 
+	0x06c1, 0x06c1, 0x06be, 0x06be, 0x06be, 0x06be, 0x06d2, 0x06d2, 
+	0x06d2, 0x06d2, 0xfbb2, 0xfbb3, 0xfbb4, 0xfbb5, 0xfbb6, 0xfbb7, 
+	0xfbb8, 0xfbb9, 0xfbba, 0xfbbb, 0xfbbc, 0xfbbd, 0xfbbe, 0xfbbf, 
+	};
+
+static const unsigned short gNormalizeTablefbc0[] = {
+	/* U+fbc0 */
+	0xfbc0, 0xfbc1, 0xfbc2, 0xfbc3, 0xfbc4, 0xfbc5, 0xfbc6, 0xfbc7, 
+	0xfbc8, 0xfbc9, 0xfbca, 0xfbcb, 0xfbcc, 0xfbcd, 0xfbce, 0xfbcf, 
+	0xfbd0, 0xfbd1, 0xfbd2, 0x06ad, 0x06ad, 0x06ad, 0x06ad, 0x06c7, 
+	0x06c7, 0x06c6, 0x06c6, 0x06c8, 0x06c8, 0x06c7, 0x06cb, 0x06cb, 
+	0x06c5, 0x06c5, 0x06c9, 0x06c9, 0x06d0, 0x06d0, 0x06d0, 0x06d0, 
+	0x0649, 0x0649, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x064a, 0x064a, 0x064a, 0x06cc, 0x06cc, 0x06cc, 0x06cc, 
+	};
+
+static const unsigned short gNormalizeTablefc00[] = {
+	/* U+fc00 */
+	0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x0628, 0x0628, 0x0628, 
+	0x0628, 0x0628, 0x0628, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 
+	0x062a, 0x062b, 0x062b, 0x062b, 0x062b, 0x062c, 0x062c, 0x062d, 
+	0x062d, 0x062e, 0x062e, 0x062e, 0x0633, 0x0633, 0x0633, 0x0633, 
+	0x0635, 0x0635, 0x0636, 0x0636, 0x0636, 0x0636, 0x0637, 0x0637, 
+	0x0638, 0x0639, 0x0639, 0x063a, 0x063a, 0x0641, 0x0641, 0x0641, 
+	0x0641, 0x0641, 0x0641, 0x0642, 0x0642, 0x0642, 0x0642, 0x0643, 
+	0x0643, 0x0643, 0x0643, 0x0643, 0x0643, 0x0643, 0x0643, 0x0644, 
+	};
+
+static const unsigned short gNormalizeTablefc40[] = {
+	/* U+fc40 */
+	0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0x0645, 0x0645, 0x0645, 
+	0x0645, 0x0645, 0x0645, 0x0646, 0x0646, 0x0646, 0x0646, 0x0646, 
+	0x0646, 0x0647, 0x0647, 0x0647, 0x0647, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x064a, 0x064a, 0x0630, 0x0631, 0x0649, 0x0020, 0x0020, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x064a, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x064a, 0x0628, 0x0628, 0x0628, 0x0628, 0x0628, 0x0628, 
+	0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062b, 0x062b, 
+	0x062b, 0x062b, 0x062b, 0x062b, 0x0641, 0x0641, 0x0642, 0x0642, 
+	};
+
+static const unsigned short gNormalizeTablefc80[] = {
+	/* U+fc80 */
+	0x0643, 0x0643, 0x0643, 0x0643, 0x0643, 0x0644, 0x0644, 0x0644, 
+	0x0645, 0x0645, 0x0646, 0x0646, 0x0646, 0x0646, 0x0646, 0x0646, 
+	0x0649, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x064a, 0x064a, 0x064a, 0x0628, 0x0628, 0x0628, 0x0628, 
+	0x0628, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062b, 0x062c, 
+	0x062c, 0x062d, 0x062d, 0x062e, 0x062e, 0x0633, 0x0633, 0x0633, 
+	0x0633, 0x0635, 0x0635, 0x0635, 0x0636, 0x0636, 0x0636, 0x0636, 
+	0x0637, 0x0638, 0x0639, 0x0639, 0x063a, 0x063a, 0x0641, 0x0641, 
+	};
+
+static const unsigned short gNormalizeTablefcc0[] = {
+	/* U+fcc0 */
+	0x0641, 0x0641, 0x0642, 0x0642, 0x0643, 0x0643, 0x0643, 0x0643, 
+	0x0643, 0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0x0645, 0x0645, 
+	0x0645, 0x0645, 0x0646, 0x0646, 0x0646, 0x0646, 0x0646, 0x0647, 
+	0x0647, 0x0647, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 0x064a, 
+	0x064a, 0x0628, 0x0628, 0x062a, 0x062a, 0x062b, 0x062b, 0x0633, 
+	0x0633, 0x0634, 0x0634, 0x0643, 0x0643, 0x0644, 0x0646, 0x0646, 
+	0x064a, 0x064a, 0x0640, 0x0640, 0x0640, 0x0637, 0x0637, 0x0639, 
+	0x0639, 0x063a, 0x063a, 0x0633, 0x0633, 0x0634, 0x0634, 0x062d, 
+	};
+
+static const unsigned short gNormalizeTablefd00[] = {
+	/* U+fd00 */
+	0x062d, 0x062c, 0x062c, 0x062e, 0x062e, 0x0635, 0x0635, 0x0636, 
+	0x0636, 0x0634, 0x0634, 0x0634, 0x0634, 0x0634, 0x0633, 0x0635, 
+	0x0636, 0x0637, 0x0637, 0x0639, 0x0639, 0x063a, 0x063a, 0x0633, 
+	0x0633, 0x0634, 0x0634, 0x062d, 0x062d, 0x062c, 0x062c, 0x062e, 
+	0x062e, 0x0635, 0x0635, 0x0636, 0x0636, 0x0634, 0x0634, 0x0634, 
+	0x0634, 0x0634, 0x0633, 0x0635, 0x0636, 0x0634, 0x0634, 0x0634, 
+	0x0634, 0x0633, 0x0634, 0x0637, 0x0633, 0x0633, 0x0633, 0x0634, 
+	0x0634, 0x0634, 0x0637, 0x0638, 0x0627, 0x0627, 0xfd3e, 0xfd3f, 
+	};
+
+static const unsigned short gNormalizeTablefd40[] = {
+	/* U+fd40 */
+	0xfd40, 0xfd41, 0xfd42, 0xfd43, 0xfd44, 0xfd45, 0xfd46, 0xfd47, 
+	0xfd48, 0xfd49, 0xfd4a, 0xfd4b, 0xfd4c, 0xfd4d, 0xfd4e, 0xfd4f, 
+	0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 
+	0x062c, 0x062c, 0x062d, 0x062d, 0x0633, 0x0633, 0x0633, 0x0633, 
+	0x0633, 0x0633, 0x0633, 0x0633, 0x0635, 0x0635, 0x0635, 0x0634, 
+	0x0634, 0x0634, 0x0634, 0x0634, 0x0634, 0x0634, 0x0636, 0x0636, 
+	0x0636, 0x0637, 0x0637, 0x0637, 0x0637, 0x0639, 0x0639, 0x0639, 
+	0x0639, 0x063a, 0x063a, 0x063a, 0x0641, 0x0641, 0x0642, 0x0642, 
+	};
+
+static const unsigned short gNormalizeTablefd80[] = {
+	/* U+fd80 */
+	0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 
+	0x0644, 0x0645, 0x0645, 0x0645, 0x0645, 0x0645, 0x0645, 0x0645, 
+	0xfd90, 0xfd91, 0x0645, 0x0647, 0x0647, 0x0646, 0x0646, 0x0646, 
+	0x0646, 0x0646, 0x0646, 0x0646, 0x064a, 0x064a, 0x0628, 0x062a, 
+	0x062a, 0x062a, 0x062a, 0x062a, 0x062a, 0x062c, 0x062c, 0x062c, 
+	0x0633, 0x0635, 0x0634, 0x0636, 0x0644, 0x0644, 0x064a, 0x064a, 
+	0x064a, 0x0645, 0x0642, 0x0646, 0x0642, 0x0644, 0x0639, 0x0643, 
+	0x0646, 0x0645, 0x0644, 0x0643, 0x0644, 0x0646, 0x062c, 0x062d, 
+	};
+
+static const unsigned short gNormalizeTablefdc0[] = {
+	/* U+fdc0 */
+	0x0645, 0x0641, 0x0628, 0x0643, 0x0639, 0x0635, 0x0633, 0x0646, 
+	0xfdc8, 0xfdc9, 0xfdca, 0xfdcb, 0xfdcc, 0xfdcd, 0xfdce, 0xfdcf, 
+	0xfdd0, 0xfdd1, 0xfdd2, 0xfdd3, 0xfdd4, 0xfdd5, 0xfdd6, 0xfdd7, 
+	0xfdd8, 0xfdd9, 0xfdda, 0xfddb, 0xfddc, 0xfddd, 0xfdde, 0xfddf, 
+	0xfde0, 0xfde1, 0xfde2, 0xfde3, 0xfde4, 0xfde5, 0xfde6, 0xfde7, 
+	0xfde8, 0xfde9, 0xfdea, 0xfdeb, 0xfdec, 0xfded, 0xfdee, 0xfdef, 
+	0x0635, 0x0642, 0x0627, 0x0627, 0x0645, 0x0635, 0x0631, 0x0639, 
+	0x0648, 0x0635, 0x0635, 0x062c, 0x0631, 0xfdfd, 0xfdfe, 0xfdff, 
+	};
+
+static const unsigned short gNormalizeTablefe00[] = {
+	/* U+fe00 */
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x002c, 0x3001, 0x3002, 0x003a, 0x003b, 0x0021, 0x003f, 0x3016, 
+	0x3017, 0x002e, 0xfe1a, 0xfe1b, 0xfe1c, 0xfe1d, 0xfe1e, 0xfe1f, 
+	0xfe20, 0xfe21, 0xfe22, 0xfe23, 0xfe24, 0xfe25, 0xfe26, 0xfe27, 
+	0xfe28, 0xfe29, 0xfe2a, 0xfe2b, 0xfe2c, 0xfe2d, 0xfe2e, 0xfe2f, 
+	0x002e, 0x2014, 0x2013, 0x005f, 0x005f, 0x0028, 0x0029, 0x007b, 
+	0x007d, 0x3014, 0x3015, 0x3010, 0x3011, 0x300a, 0x300b, 0x3008, 
+	};
+
+static const unsigned short gNormalizeTablefe40[] = {
+	/* U+fe40 */
+	0x3009, 0x300c, 0x300d, 0x300e, 0x300f, 0xfe45, 0xfe46, 0x005b, 
+	0x005d, 0x0020, 0x0020, 0x0020, 0x0020, 0x005f, 0x005f, 0x005f, 
+	0x002c, 0x3001, 0x002e, 0xfe53, 0x003b, 0x003a, 0x003f, 0x0021, 
+	0x2014, 0x0028, 0x0029, 0x007b, 0x007d, 0x3014, 0x3015, 0x0023, 
+	0x0026, 0x002a, 0x002b, 0x002d, 0x003c, 0x003e, 0x003d, 0xfe67, 
+	0x005c, 0x0024, 0x0025, 0x0040, 0xfe6c, 0xfe6d, 0xfe6e, 0xfe6f, 
+	0x0020, 0x0640, 0x0020, 0xfe73, 0x0020, 0xfe75, 0x0020, 0x0640, 
+	0x0020, 0x0640, 0x0020, 0x0640, 0x0020, 0x0640, 0x0020, 0x0640, 
+	};
+
+static const unsigned short gNormalizeTablefe80[] = {
+	/* U+fe80 */
+	0x0621, 0x0627, 0x0627, 0x0627, 0x0627, 0x0648, 0x0648, 0x0627, 
+	0x0627, 0x064a, 0x064a, 0x064a, 0x064a, 0x0627, 0x0627, 0x0628, 
+	0x0628, 0x0628, 0x0628, 0x0629, 0x0629, 0x062a, 0x062a, 0x062a, 
+	0x062a, 0x062b, 0x062b, 0x062b, 0x062b, 0x062c, 0x062c, 0x062c, 
+	0x062c, 0x062d, 0x062d, 0x062d, 0x062d, 0x062e, 0x062e, 0x062e, 
+	0x062e, 0x062f, 0x062f, 0x0630, 0x0630, 0x0631, 0x0631, 0x0632, 
+	0x0632, 0x0633, 0x0633, 0x0633, 0x0633, 0x0634, 0x0634, 0x0634, 
+	0x0634, 0x0635, 0x0635, 0x0635, 0x0635, 0x0636, 0x0636, 0x0636, 
+	};
+
+static const unsigned short gNormalizeTablefec0[] = {
+	/* U+fec0 */
+	0x0636, 0x0637, 0x0637, 0x0637, 0x0637, 0x0638, 0x0638, 0x0638, 
+	0x0638, 0x0639, 0x0639, 0x0639, 0x0639, 0x063a, 0x063a, 0x063a, 
+	0x063a, 0x0641, 0x0641, 0x0641, 0x0641, 0x0642, 0x0642, 0x0642, 
+	0x0642, 0x0643, 0x0643, 0x0643, 0x0643, 0x0644, 0x0644, 0x0644, 
+	0x0644, 0x0645, 0x0645, 0x0645, 0x0645, 0x0646, 0x0646, 0x0646, 
+	0x0646, 0x0647, 0x0647, 0x0647, 0x0647, 0x0648, 0x0648, 0x0649, 
+	0x0649, 0x064a, 0x064a, 0x064a, 0x064a, 0x0644, 0x0644, 0x0644, 
+	0x0644, 0x0644, 0x0644, 0x0644, 0x0644, 0xfefd, 0xfefe, 0x0020, 
+	};
+
+static const unsigned short gNormalizeTableff00[] = {
+	/* U+ff00 */
+	0xff00, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, 
+	0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f, 
+	0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f, 
+	0x0040, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 
+	0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, 
+	};
+
+static const unsigned short gNormalizeTableff40[] = {
+	/* U+ff40 */
+	0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 
+	0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x2985, 
+	0x2986, 0x3002, 0x300c, 0x300d, 0x3001, 0x30fb, 0x30f2, 0x30a1, 
+	0x30a3, 0x30a5, 0x30a7, 0x30a9, 0x30e3, 0x30e5, 0x30e7, 0x30c3, 
+	0x30fc, 0x30a2, 0x30a4, 0x30a6, 0x30a8, 0x30aa, 0x30ab, 0x30ad, 
+	0x30af, 0x30b1, 0x30b3, 0x30b5, 0x30b7, 0x30b9, 0x30bb, 0x30bd, 
+	};
+
+static const unsigned short gNormalizeTableff80[] = {
+	/* U+ff80 */
+	0x30bf, 0x30c1, 0x30c4, 0x30c6, 0x30c8, 0x30ca, 0x30cb, 0x30cc, 
+	0x30cd, 0x30ce, 0x30cf, 0x30d2, 0x30d5, 0x30d8, 0x30db, 0x30de, 
+	0x30df, 0x30e0, 0x30e1, 0x30e2, 0x30e4, 0x30e6, 0x30e8, 0x30e9, 
+	0x30ea, 0x30eb, 0x30ec, 0x30ed, 0x30ef, 0x30f3, 0x3099, 0x309a, 
+	0x0020, 0x1100, 0x1101, 0x11aa, 0x1102, 0x11ac, 0x11ad, 0x1103, 
+	0x1104, 0x1105, 0x11b0, 0x11b1, 0x11b2, 0x11b3, 0x11b4, 0x11b5, 
+	0x111a, 0x1106, 0x1107, 0x1108, 0x1121, 0x1109, 0x110a, 0x110b, 
+	0x110c, 0x110d, 0x110e, 0x110f, 0x1110, 0x1111, 0x1112, 0xffbf, 
+	};
+
+static const unsigned short gNormalizeTableffc0[] = {
+	/* U+ffc0 */
+	0xffc0, 0xffc1, 0x1161, 0x1162, 0x1163, 0x1164, 0x1165, 0x1166, 
+	0xffc8, 0xffc9, 0x1167, 0x1168, 0x1169, 0x116a, 0x116b, 0x116c, 
+	0xffd0, 0xffd1, 0x116d, 0x116e, 0x116f, 0x1170, 0x1171, 0x1172, 
+	0xffd8, 0xffd9, 0x1173, 0x1174, 0x1175, 0xffdd, 0xffde, 0xffdf, 
+	0x00a2, 0x00a3, 0x00ac, 0x0020, 0x00a6, 0x00a5, 0x20a9, 0xffe7, 
+	0x2502, 0x2190, 0x2191, 0x2192, 0x2193, 0x25a0, 0x25cb, 0xffef, 
+	0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 
+	0x0020, 0xfff9, 0xfffa, 0xfffb, 0xfffc, 0xfffd, 0xfffe, 0xffff, 
+	};
+
+static const unsigned short* gNormalizeTable[] = { 
+	0, gNormalizeTable0040, gNormalizeTable0080, gNormalizeTable00c0, 
+	gNormalizeTable0100, gNormalizeTable0140, gNormalizeTable0180, gNormalizeTable01c0, 
+	gNormalizeTable0200, gNormalizeTable0240, gNormalizeTable0280, gNormalizeTable02c0, 
+	0, gNormalizeTable0340, gNormalizeTable0380, gNormalizeTable03c0, 
+	gNormalizeTable0400, gNormalizeTable0440, gNormalizeTable0480, gNormalizeTable04c0, 
+	gNormalizeTable0500, gNormalizeTable0540, gNormalizeTable0580, 0, 
+	gNormalizeTable0600, gNormalizeTable0640, 0, gNormalizeTable06c0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	gNormalizeTable0900, gNormalizeTable0940, 0, gNormalizeTable09c0, 
+	gNormalizeTable0a00, gNormalizeTable0a40, 0, 0, 
+	0, gNormalizeTable0b40, gNormalizeTable0b80, gNormalizeTable0bc0, 
+	0, gNormalizeTable0c40, 0, gNormalizeTable0cc0, 
+	0, gNormalizeTable0d40, 0, gNormalizeTable0dc0, 
+	gNormalizeTable0e00, 0, gNormalizeTable0e80, gNormalizeTable0ec0, 
+	gNormalizeTable0f00, gNormalizeTable0f40, gNormalizeTable0f80, 0, 
+	gNormalizeTable1000, 0, gNormalizeTable1080, gNormalizeTable10c0, 
+	0, gNormalizeTable1140, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, gNormalizeTable1780, 0, 
+	gNormalizeTable1800, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	gNormalizeTable1b00, gNormalizeTable1b40, 0, 0, 
+	0, 0, 0, 0, 
+	gNormalizeTable1d00, gNormalizeTable1d40, gNormalizeTable1d80, 0, 
+	gNormalizeTable1e00, gNormalizeTable1e40, gNormalizeTable1e80, gNormalizeTable1ec0, 
+	gNormalizeTable1f00, gNormalizeTable1f40, gNormalizeTable1f80, gNormalizeTable1fc0, 
+	gNormalizeTable2000, gNormalizeTable2040, gNormalizeTable2080, 0, 
+	gNormalizeTable2100, gNormalizeTable2140, gNormalizeTable2180, gNormalizeTable21c0, 
+	gNormalizeTable2200, gNormalizeTable2240, gNormalizeTable2280, gNormalizeTable22c0, 
+	gNormalizeTable2300, 0, 0, 0, 
+	0, gNormalizeTable2440, gNormalizeTable2480, gNormalizeTable24c0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	gNormalizeTable2a00, gNormalizeTable2a40, 0, gNormalizeTable2ac0, 
+	0, 0, 0, 0, 
+	gNormalizeTable2c00, gNormalizeTable2c40, gNormalizeTable2c80, gNormalizeTable2cc0, 
+	0, gNormalizeTable2d40, 0, 0, 
+	0, 0, gNormalizeTable2e80, gNormalizeTable2ec0, 
+	gNormalizeTable2f00, gNormalizeTable2f40, gNormalizeTable2f80, gNormalizeTable2fc0, 
+	gNormalizeTable3000, gNormalizeTable3040, gNormalizeTable3080, gNormalizeTable30c0, 
+	gNormalizeTable3100, gNormalizeTable3140, gNormalizeTable3180, 0, 
+	gNormalizeTable3200, gNormalizeTable3240, gNormalizeTable3280, gNormalizeTable32c0, 
+	gNormalizeTable3300, gNormalizeTable3340, gNormalizeTable3380, gNormalizeTable33c0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, gNormalizeTablea640, gNormalizeTablea680, 0, 
+	gNormalizeTablea700, gNormalizeTablea740, gNormalizeTablea780, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	0, 0, 0, 0, 
+	gNormalizeTablef900, gNormalizeTablef940, gNormalizeTablef980, gNormalizeTablef9c0, 
+	gNormalizeTablefa00, gNormalizeTablefa40, gNormalizeTablefa80, gNormalizeTablefac0, 
+	gNormalizeTablefb00, gNormalizeTablefb40, gNormalizeTablefb80, gNormalizeTablefbc0, 
+	gNormalizeTablefc00, gNormalizeTablefc40, gNormalizeTablefc80, gNormalizeTablefcc0, 
+	gNormalizeTablefd00, gNormalizeTablefd40, gNormalizeTablefd80, gNormalizeTablefdc0, 
+	gNormalizeTablefe00, gNormalizeTablefe40, gNormalizeTablefe80, gNormalizeTablefec0, 
+	gNormalizeTableff00, gNormalizeTableff40, gNormalizeTableff80, gNormalizeTableffc0, 
+};
+
+unsigned int normalize_character(const unsigned int c)
+{
+  if (c >= 0x10000 || !gNormalizeTable[c >> 6])
+    return c;
+  return gNormalizeTable[c >> 6][c & 0x3f];
+}
+
diff --git a/mailnews/extensions/fts3/src/README.mozilla b/mailnews/extensions/fts3/src/README.mozilla
new file mode 100644
index 000000000..0bfe7deb3
--- /dev/null
+++ b/mailnews/extensions/fts3/src/README.mozilla
@@ -0,0 +1,3 @@
+fts3_porter.c code is from SQLite3.
+
+This customized tokenizer "mozporter" by Mozilla supports CJK indexing using bi-gram. So you have to use bi-gram search string if you wanto to search CJK character.
diff --git a/mailnews/extensions/fts3/src/fts3_porter.c b/mailnews/extensions/fts3/src/fts3_porter.c
new file mode 100644
index 000000000..2276244c1
--- /dev/null
+++ b/mailnews/extensions/fts3/src/fts3_porter.c
@@ -0,0 +1,1150 @@
+/*
+** 2006 September 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** Implementation of the full-text-search tokenizer that implements
+** a Porter stemmer.
+**
+*/
+
+/*
+ * This file is based on the SQLite FTS3 Porter Stemmer implementation.
+ *
+ * This is an attempt to provide some level of full-text search to users of
+ *  Thunderbird who use languages that are not space/punctuation delimited.
+ *  This is accomplished by performing bi-gram indexing of characters fall
+ *  into the unicode space occupied by character sets used in such languages.
+ *
+ * Bi-gram indexing means that given the string "12345" we would index the
+ *  pairs "12", "23", "34", and "45" (with position information).  We do this
+ *  because we are not sure where the word/semantic boundaries are in that
+ *  string.  Then, when a user searches for "234" the FTS3 engine tokenizes the
+ *  search query into "23" and "34".  Using special phrase-logic FTS3 requires
+ *  the matches to have the tokens "23" and "34" adjacent to each other and in
+ *  that order.  In theory if the user searched for "2345" we we could just
+ *  search for "23 NEAR/2 34".  Unfortunately, NEAR does not imply ordering,
+ *  so even though that would be more efficient, we would lose correctness
+ *  and cannot do it.
+ *
+ * The efficiency and usability of bi-gram search assumes that the character
+ *  space is large enough and actually observed bi-grams sufficiently
+ *  distributed throughout the potential space so that the search bi-grams
+ *  generated when the user issues a query find a 'reasonable' number of
+ *  documents for each bi-gram match.
+ *
+ * Mozilla contributors:
+ *   Makoto Kato <m_kato@ga2.so-net.ne.jp>
+ *   Andrew Sutherland <asutherland@asutherland.org>
+ */
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "fts3_tokenizer.h"
+
+/* need some defined to compile without sqlite3 code */
+
+#define sqlite3_malloc malloc
+#define sqlite3_free free
+#define sqlite3_realloc realloc
+
+static const unsigned char sqlite3Utf8Trans1[] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+};
+
+typedef unsigned char u8;
+
+/**
+ * SQLite helper macro from sqlite3.c (really utf.c) to encode a unicode
+ * character into utf8.
+ *
+ * @param zOut A pointer to the current write position that is updated by
+ *     the routine.  At entry it should point to one-past the last valid
+ *     encoded byte.  The same holds true at exit.
+ * @param c The character to encode; this should be an unsigned int.
+ */
+#define WRITE_UTF8(zOut, c) {                          \
+  if( c<0x0080 ){                                      \
+    *zOut++ = (u8)(c&0xff);                            \
+  }                                                    \
+  else if( c<0x0800 ){                                 \
+    *zOut++ = 0xC0 + (u8)((c>>6) & 0x1F);              \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }                                                    \
+  else if( c<0x10000 ){                                \
+    *zOut++ = 0xE0 + (u8)((c>>12) & 0x0F);             \
+    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }else{                                               \
+    *zOut++ = 0xf0 + (u8)((c>>18) & 0x07);             \
+    *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);             \
+    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }                                                    \
+}
+
+/**
+ * Fudge factor to avoid buffer overwrites when WRITE_UTF8 is involved.
+ *
+ * Our normalization table includes entries that may result in a larger
+ *  utf-8 encoding.  Namely, 023a maps to 2c65.  This is a growth from 2 bytes
+ *  as utf-8 encoded to 3 bytes.  This is currently the only transition possible
+ *  because 1-byte encodings are known to stay 1-byte and our normalization
+ *  table is 16-bit and so can't generate a 4-byte encoded output.
+ *
+ * For simplicity, we just multiple by 2 which covers the current case and
+ *  potential growth for 2-byte to 4-byte growth.  We can afford to do this
+ *  because we're not talking about a lot of memory here as a rule.
+ */
+#define MAX_UTF8_GROWTH_FACTOR 2
+
+/**
+ * Helper from sqlite3.c to read a single UTF8 character.
+ *
+ * The clever bit with multi-byte reading is that you keep going until you find
+ *  a byte whose top bits are not '10'.  A single-byte UTF8 character will have
+ *  '00' or '01', and a multi-byte UTF8 character must start with '11'.
+ *
+ * In the event of illegal UTF-8 this macro may read an arbitrary number of
+ *  characters but will never read past zTerm.  The resulting character value
+ *  of illegal UTF-8 can be anything, although efforts are made to return the
+ *  illegal character (0xfffd) for UTF-16 surrogates.
+ *
+ * @param zIn A pointer to the current position that is updated by the routine,
+ *     pointing at the start of the next character when the routine returns.
+ * @param zTerm A pointer one past the end of the buffer.
+ * @param c The 'unsigned int' to hold the resulting character value.  Do not
+ *      use a short or a char.
+ */
+#define READ_UTF8(zIn, zTerm, c) {                         \
+  c = *(zIn++);                                            \
+  if( c>=0xc0 ){                                           \
+    c = sqlite3Utf8Trans1[c-0xc0];                         \
+    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
+      c = (c<<6) + (0x3f & *(zIn++));                      \
+    }                                                      \
+    if( c<0x80                                             \
+        || (c&0xFFFFF800)==0xD800                          \
+        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
+  }                                                        \
+}
+
+/* end of compatible block to complie codes */
+
+/*
+** Class derived from sqlite3_tokenizer
+*/
+typedef struct porter_tokenizer {
+  sqlite3_tokenizer base;      /* Base class */
+} porter_tokenizer;
+
+/*
+** Class derived from sqlit3_tokenizer_cursor
+*/
+typedef struct porter_tokenizer_cursor {
+  sqlite3_tokenizer_cursor base;
+  const char *zInput;          /* input we are tokenizing */
+  int nInput;                  /* size of the input */
+  int iOffset;                 /* current position in zInput */
+  int iToken;                  /* index of next token to be returned */
+  unsigned char *zToken;       /* storage for current token */
+  int nAllocated;              /* space allocated to zToken buffer */
+  /**
+   * Store the offset of the second character in the bi-gram pair that we just
+   *  emitted so that we can consider it being the first character in a bi-gram
+   *  pair.
+   * The value 0 indicates that there is no previous such character.  This is
+   *  an acceptable sentinel value because the 0th offset can never be the
+   *  offset of the second in a bi-gram pair.
+   *
+   * For example, let us say we are tokenizing a string of 4 CJK characters 
+   *  represented by the byte-string "11223344" where each repeated digit
+   *  indicates 2-bytes of storage used to encode the character in UTF-8.
+   *  (It actually takes 3, btw.)  Then on the passes to emit each token,
+   *  the iOffset and iPrevGigramOffset values at entry will be:
+   *
+   * 1122: iOffset = 0, iPrevBigramOffset = 0
+   * 2233: iOffset = 4, iPrevBigramOffset = 2
+   * 3344: iOffset = 6, iPrevBigramOffset = 4
+   * (nothing will be emitted): iOffset = 8, iPrevBigramOffset = 6
+   */
+  int iPrevBigramOffset;       /* previous result was bi-gram */
+} porter_tokenizer_cursor;
+
+
+/* Forward declaration */
+static const sqlite3_tokenizer_module porterTokenizerModule;
+
+/* from normalize.c */
+extern unsigned int normalize_character(const unsigned int c);
+
+/*
+** Create a new tokenizer instance.
+*/
+static int porterCreate(
+  int argc, const char * const *argv,
+  sqlite3_tokenizer **ppTokenizer
+){
+  porter_tokenizer *t;
+  t = (porter_tokenizer *) sqlite3_malloc(sizeof(*t));
+  if( t==NULL ) return SQLITE_NOMEM;
+  memset(t, 0, sizeof(*t));
+  *ppTokenizer = &t->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destroy a tokenizer
+*/
+static int porterDestroy(sqlite3_tokenizer *pTokenizer){
+  sqlite3_free(pTokenizer);
+  return SQLITE_OK;
+}
+
+/*
+** Prepare to begin tokenizing a particular string.  The input
+** string to be tokenized is zInput[0..nInput-1].  A cursor
+** used to incrementally tokenize this string is returned in 
+** *ppCursor.
+*/
+static int porterOpen(
+  sqlite3_tokenizer *pTokenizer,         /* The tokenizer */
+  const char *zInput, int nInput,        /* String to be tokenized */
+  sqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
+){
+  porter_tokenizer_cursor *c;
+
+  c = (porter_tokenizer_cursor *) sqlite3_malloc(sizeof(*c));
+  if( c==NULL ) return SQLITE_NOMEM;
+
+  c->zInput = zInput;
+  if( zInput==0 ){
+    c->nInput = 0;
+  }else if( nInput<0 ){
+    c->nInput = (int)strlen(zInput);
+  }else{
+    c->nInput = nInput;
+  }
+  c->iOffset = 0;                 /* start tokenizing at the beginning */
+  c->iToken = 0;
+  c->zToken = NULL;               /* no space allocated, yet. */
+  c->nAllocated = 0;
+  c->iPrevBigramOffset = 0;
+
+  *ppCursor = &c->base;
+  return SQLITE_OK;
+}
+
+/*
+** Close a tokenization cursor previously opened by a call to
+** porterOpen() above.
+*/
+static int porterClose(sqlite3_tokenizer_cursor *pCursor){
+  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
+  sqlite3_free(c->zToken);
+  sqlite3_free(c);
+  return SQLITE_OK;
+}
+/*
+** Vowel or consonant
+*/
+static const char cType[] = {
+   0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0,
+   1, 1, 1, 2, 1
+};
+
+/*
+** isConsonant() and isVowel() determine if their first character in
+** the string they point to is a consonant or a vowel, according
+** to Porter ruls.  
+**
+** A consonate is any letter other than 'a', 'e', 'i', 'o', or 'u'.
+** 'Y' is a consonant unless it follows another consonant,
+** in which case it is a vowel.
+**
+** In these routine, the letters are in reverse order.  So the 'y' rule
+** is that 'y' is a consonant unless it is followed by another
+** consonent.
+*/
+static int isVowel(const char*);
+static int isConsonant(const char *z){
+  int j;
+  char x = *z;
+  if( x==0 ) return 0;
+  assert( x>='a' && x<='z' );
+  j = cType[x-'a'];
+  if( j<2 ) return j;
+  return z[1]==0 || isVowel(z + 1);
+}
+static int isVowel(const char *z){
+  int j;
+  char x = *z;
+  if( x==0 ) return 0;
+  assert( x>='a' && x<='z' );
+  j = cType[x-'a'];
+  if( j<2 ) return 1-j;
+  return isConsonant(z + 1);
+}
+
+/*
+** Let any sequence of one or more vowels be represented by V and let
+** C be sequence of one or more consonants.  Then every word can be
+** represented as:
+**
+**           [C] (VC){m} [V]
+**
+** In prose:  A word is an optional consonant followed by zero or
+** vowel-consonant pairs followed by an optional vowel.  "m" is the
+** number of vowel consonant pairs.  This routine computes the value
+** of m for the first i bytes of a word.
+**
+** Return true if the m-value for z is 1 or more.  In other words,
+** return true if z contains at least one vowel that is followed
+** by a consonant.
+**
+** In this routine z[] is in reverse order.  So we are really looking
+** for an instance of of a consonant followed by a vowel.
+*/
+static int m_gt_0(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/* Like mgt0 above except we are looking for a value of m which is
+** exactly 1
+*/
+static int m_eq_1(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 1;
+  while( isConsonant(z) ){ z++; }
+  return *z==0;
+}
+
+/* Like mgt0 above except we are looking for a value of m>1 instead
+** or m>0
+*/
+static int m_gt_1(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/*
+** Return TRUE if there is a vowel anywhere within z[0..n-1]
+*/
+static int hasVowel(const char *z){
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/*
+** Return TRUE if the word ends in a double consonant.
+**
+** The text is reversed here. So we are really looking at
+** the first two characters of z[].
+*/
+static int doubleConsonant(const char *z){
+  return isConsonant(z) && z[0]==z[1] && isConsonant(z+1);
+}
+
+/*
+** Return TRUE if the word ends with three letters which
+** are consonant-vowel-consonent and where the final consonant
+** is not 'w', 'x', or 'y'.
+**
+** The word is reversed here.  So we are really checking the
+** first three letters and the first one cannot be in [wxy].
+*/
+static int star_oh(const char *z){
+  return
+    z[0]!=0 && isConsonant(z) &&
+    z[0]!='w' && z[0]!='x' && z[0]!='y' &&
+    z[1]!=0 && isVowel(z+1) &&
+    z[2]!=0 && isConsonant(z+2);
+}
+
+/*
+** If the word ends with zFrom and xCond() is true for the stem
+** of the word that preceeds the zFrom ending, then change the 
+** ending to zTo.
+**
+** The input word *pz and zFrom are both in reverse order.  zTo
+** is in normal order. 
+**
+** Return TRUE if zFrom matches.  Return FALSE if zFrom does not
+** match.  Not that TRUE is returned even if xCond() fails and
+** no substitution occurs.
+*/
+static int stem(
+  char **pz,             /* The word being stemmed (Reversed) */
+  const char *zFrom,     /* If the ending matches this... (Reversed) */
+  const char *zTo,       /* ... change the ending to this (not reversed) */
+  int (*xCond)(const char*)   /* Condition that must be true */
+){
+  char *z = *pz;
+  while( *zFrom && *zFrom==*z ){ z++; zFrom++; }
+  if( *zFrom!=0 ) return 0;
+  if( xCond && !xCond(z) ) return 1;
+  while( *zTo ){
+    *(--z) = *(zTo++);
+  }
+  *pz = z;
+  return 1;
+}
+
+/**
+ * Voiced sound mark is only on Japanese.  It is like accent.  It combines with
+ * previous character.  Example, "サ" (Katakana) with "゛" (voiced sound mark) is
+ * "ザ".  Although full-width character mapping has combined character like "ザ",
+ * there is no combined character on half-width Katanaka character mapping.
+ */
+static int isVoicedSoundMark(const unsigned int c)
+{
+  if (c == 0xff9e || c == 0xff9f || c == 0x3099 || c == 0x309a)
+    return 1;
+  return 0;
+}
+
+/**
+ * How many unicode characters to take from the front and back of a term in
+ * |copy_stemmer|.
+ */
+#define COPY_STEMMER_COPY_HALF_LEN 10
+
+/**
+ * Normalizing but non-stemming term copying.
+ *
+ * The original function would take 10 bytes from the front and 10 bytes from
+ * the back if there were no digits in the string and it was more than 20
+ * bytes long.  If there were digits involved that would decrease to 3 bytes
+ * from the front and 3 from the back.  This would potentially corrupt utf-8
+ * encoded characters, which is fine from the perspective of the FTS3 logic.
+ *
+ * In our revised form we now operate on a unicode character basis rather than
+ * a byte basis.  Additionally we use the same length limit even if there are
+ * digits involved because it's not clear digit token-space reduction is saving
+ * us from anything and could be hurting.  Specifically, if no one is ever
+ * going to search on things with digits, then we should just remove them.
+ * Right now, the space reduction is going to increase false positives when
+ * people do search on them and increase the number of collisions sufficiently
+ * to make it really expensive.  The caveat is there will be some increase in
+ * index size which could be meaningful if people are receiving lots of emails
+ * full of distinct numbers.
+ *
+ * In order to do the copy-from-the-front and copy-from-the-back trick, once
+ * we reach N characters in, we set zFrontEnd to the current value of zOut
+ * (which represents the termination of the first part of the result string)
+ * and set zBackStart to the value of zOutStart.  We then advanced zBackStart
+ * along a character at a time as we write more characters.  Once we have
+ * traversed the entire string, if zBackStart > zFrontEnd, then we know
+ * the string should be shrunk using the characters in the two ranges.
+ *
+ * (It would be faster to scan from the back with specialized logic but that
+ * particular logic seems easy to screw up and we don't have unit tests in here
+ * to the extent required.)
+ *
+ * @param zIn Input string to normalize and potentially shrink.
+ * @param nBytesIn The number of bytes in zIn, distinct from the number of
+ *     unicode characters encoded in zIn.
+ * @param zOut The string to write our output into.  This must have at least
+ *     nBytesIn * MAX_UTF8_GROWTH_FACTOR in order to compensate for
+ *     normalization that results in a larger utf-8 encoding.
+ * @param pnBytesOut Integer to write the number of bytes in zOut into.
+ */
+static void copy_stemmer(const unsigned char *zIn, const int nBytesIn,
+                         unsigned char *zOut, int *pnBytesOut){
+  const unsigned char *zInTerm = zIn + nBytesIn;
+  unsigned char *zOutStart = zOut;
+  unsigned int c;
+  unsigned int charCount = 0;
+  unsigned char *zFrontEnd = NULL, *zBackStart = NULL;
+  unsigned int trashC;
+
+  /* copy normalized character */
+  while (zIn < zInTerm) {
+    READ_UTF8(zIn, zInTerm, c);
+    c = normalize_character(c);
+
+    /* ignore voiced/semi-voiced sound mark */
+    if (!isVoicedSoundMark(c)) {
+      /* advance one non-voiced sound mark character. */
+      if (zBackStart)
+        READ_UTF8(zBackStart, zOut, trashC);
+
+      WRITE_UTF8(zOut, c);
+      charCount++;
+      if (charCount == COPY_STEMMER_COPY_HALF_LEN) {
+        zFrontEnd = zOut;
+        zBackStart = zOutStart;
+      }
+    }
+  }
+
+  /* if we need to shrink the string, transplant the back bytes */
+  if (zBackStart > zFrontEnd) { /* this handles when both are null too */
+    size_t backBytes = zOut - zBackStart;
+    memmove(zFrontEnd, zBackStart, backBytes);
+    zOut = zFrontEnd + backBytes;
+  }
+  *zOut = 0;
+  *pnBytesOut = zOut - zOutStart;
+}
+
+
+/*
+** Stem the input word zIn[0..nIn-1].  Store the output in zOut.
+** zOut is at least big enough to hold nIn bytes.  Write the actual
+** size of the output word (exclusive of the '\0' terminator) into *pnOut.
+**
+** Any upper-case characters in the US-ASCII character set ([A-Z])
+** are converted to lower case.  Upper-case UTF characters are
+** unchanged.
+**
+** Words that are longer than about 20 bytes are stemmed by retaining
+** a few bytes from the beginning and the end of the word.  If the
+** word contains digits, 3 bytes are taken from the beginning and
+** 3 bytes from the end.  For long words without digits, 10 bytes
+** are taken from each end.  US-ASCII case folding still applies.
+** 
+** If the input word contains not digits but does characters not 
+** in [a-zA-Z] then no stemming is attempted and this routine just 
+** copies the input into the input into the output with US-ASCII
+** case folding.
+**
+** Stemming never increases the length of the word.  So there is
+** no chance of overflowing the zOut buffer.
+*/
+static void porter_stemmer(
+  const unsigned char *zIn,
+  unsigned int nIn,
+  unsigned char *zOut,
+  int *pnOut
+){
+  unsigned int i, j, c;
+  char zReverse[28];
+  char *z, *z2;
+  const unsigned char *zTerm = zIn + nIn;
+  const unsigned char *zTmp = zIn;
+
+  if( nIn<3 || nIn>=sizeof(zReverse)-7 ){
+    /* The word is too big or too small for the porter stemmer.
+    ** Fallback to the copy stemmer */
+    copy_stemmer(zIn, nIn, zOut, pnOut);
+    return;
+  }
+  for (j = sizeof(zReverse) - 6; zTmp < zTerm; j--) {
+    READ_UTF8(zTmp, zTerm, c);
+    c = normalize_character(c);
+    if( c>='a' && c<='z' ){
+      zReverse[j] = c;
+    }else{
+      /* The use of a character not in [a-zA-Z] means that we fallback
+      ** to the copy stemmer */
+      copy_stemmer(zIn, nIn, zOut, pnOut);
+      return;
+    }
+  }
+  memset(&zReverse[sizeof(zReverse)-5], 0, 5);
+  z = &zReverse[j+1];
+
+
+  /* Step 1a */
+  if( z[0]=='s' ){
+    if(
+     !stem(&z, "sess", "ss", 0) &&
+     !stem(&z, "sei", "i", 0)  &&
+     !stem(&z, "ss", "ss", 0)
+    ){
+      z++;
+    }
+  }
+
+  /* Step 1b */  
+  z2 = z;
+  if( stem(&z, "dee", "ee", m_gt_0) ){
+    /* Do nothing.  The work was all in the test */
+  }else if( 
+     (stem(&z, "gni", "", hasVowel) || stem(&z, "de", "", hasVowel))
+      && z!=z2
+  ){
+     if( stem(&z, "ta", "ate", 0) ||
+         stem(&z, "lb", "ble", 0) ||
+         stem(&z, "zi", "ize", 0) ){
+       /* Do nothing.  The work was all in the test */
+     }else if( doubleConsonant(z) && (*z!='l' && *z!='s' && *z!='z') ){
+       z++;
+     }else if( m_eq_1(z) && star_oh(z) ){
+       *(--z) = 'e';
+     }
+  }
+
+  /* Step 1c */
+  if( z[0]=='y' && hasVowel(z+1) ){
+    z[0] = 'i';
+  }
+
+  /* Step 2 */
+  switch( z[1] ){
+   case 'a':
+     (void) (stem(&z, "lanoita", "ate", m_gt_0) ||
+             stem(&z, "lanoit", "tion", m_gt_0));
+     break;
+   case 'c':
+     (void) (stem(&z, "icne", "ence", m_gt_0) ||
+             stem(&z, "icna", "ance", m_gt_0));
+     break;
+   case 'e':
+     (void) (stem(&z, "rezi", "ize", m_gt_0));
+     break;
+   case 'g':
+     (void) (stem(&z, "igol", "log", m_gt_0));
+     break;
+   case 'l':
+     (void) (stem(&z, "ilb", "ble", m_gt_0) ||
+             stem(&z, "illa", "al", m_gt_0) ||
+             stem(&z, "iltne", "ent", m_gt_0) ||
+             stem(&z, "ile", "e", m_gt_0) ||
+             stem(&z, "ilsuo", "ous", m_gt_0));
+     break;
+   case 'o':
+     (void) (stem(&z, "noitazi", "ize", m_gt_0) ||
+             stem(&z, "noita", "ate", m_gt_0) ||
+             stem(&z, "rota", "ate", m_gt_0));
+     break;
+   case 's':
+     (void) (stem(&z, "msila", "al", m_gt_0) ||
+             stem(&z, "ssenevi", "ive", m_gt_0) ||
+             stem(&z, "ssenluf", "ful", m_gt_0) ||
+             stem(&z, "ssensuo", "ous", m_gt_0));
+     break;
+   case 't':
+     (void) (stem(&z, "itila", "al", m_gt_0) ||
+             stem(&z, "itivi", "ive", m_gt_0) ||
+             stem(&z, "itilib", "ble", m_gt_0));
+     break;
+  }
+
+  /* Step 3 */
+  switch( z[0] ){
+   case 'e':
+     (void) (stem(&z, "etaci", "ic", m_gt_0) ||
+             stem(&z, "evita", "", m_gt_0)   ||
+             stem(&z, "ezila", "al", m_gt_0));
+     break;
+   case 'i':
+     (void) (stem(&z, "itici", "ic", m_gt_0));
+     break;
+   case 'l':
+     (void) (stem(&z, "laci", "ic", m_gt_0) ||
+             stem(&z, "luf", "", m_gt_0));
+     break;
+   case 's':
+     (void) (stem(&z, "ssen", "", m_gt_0));
+     break;
+  }
+
+  /* Step 4 */
+  switch( z[1] ){
+   case 'a':
+     if( z[0]=='l' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'c':
+     if( z[0]=='e' && z[2]=='n' && (z[3]=='a' || z[3]=='e')  && m_gt_1(z+4)  ){
+       z += 4;
+     }
+     break;
+   case 'e':
+     if( z[0]=='r' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'i':
+     if( z[0]=='c' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'l':
+     if( z[0]=='e' && z[2]=='b' && (z[3]=='a' || z[3]=='i') && m_gt_1(z+4) ){
+       z += 4;
+     }
+     break;
+   case 'n':
+     if( z[0]=='t' ){
+       if( z[2]=='a' ){
+         if( m_gt_1(z+3) ){
+           z += 3;
+         }
+       }else if( z[2]=='e' ){
+         (void) (stem(&z, "tneme", "", m_gt_1) ||
+                 stem(&z, "tnem", "", m_gt_1) ||
+                 stem(&z, "tne", "", m_gt_1));
+       }
+     }
+     break;
+   case 'o':
+     if( z[0]=='u' ){
+       if( m_gt_1(z+2) ){
+         z += 2;
+       }
+     }else if( z[3]=='s' || z[3]=='t' ){
+       (void) (stem(&z, "noi", "", m_gt_1));
+     }
+     break;
+   case 's':
+     if( z[0]=='m' && z[2]=='i' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+   case 't':
+     (void) (stem(&z, "eta", "", m_gt_1) ||
+             stem(&z, "iti", "", m_gt_1));
+     break;
+   case 'u':
+     if( z[0]=='s' && z[2]=='o' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+   case 'v':
+   case 'z':
+     if( z[0]=='e' && z[2]=='i' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+  }
+
+  /* Step 5a */
+  if( z[0]=='e' ){
+    if( m_gt_1(z+1) ){
+      z++;
+    }else if( m_eq_1(z+1) && !star_oh(z+1) ){
+      z++;
+    }
+  }
+
+  /* Step 5b */
+  if( m_gt_1(z) && z[0]=='l' && z[1]=='l' ){
+    z++;
+  }
+
+  /* z[] is now the stemmed word in reverse order.  Flip it back
+  ** around into forward order and return.
+  */
+  *pnOut = i = strlen(z);
+  zOut[i] = 0;
+  while( *z ){
+    zOut[--i] = *(z++);
+  }
+}
+
+/**
+ * Indicate whether characters in the 0x30 - 0x7f region can be part of a token.
+ * Letters and numbers can; punctuation (and 'del') can't.
+ */
+static const char porterIdChar[] = {
+/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 3x */
+    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 4x */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,  /* 5x */
+    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 6x */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,  /* 7x */
+};
+
+/**
+ * Test whether a character is a (non-ascii) space character or not.  isDelim
+ *  uses the existing porter stemmer logic for anything in the ASCII (< 0x80)
+ *  space which covers 0x20.
+ *
+ * 0x2000-0x206F is the general punctuation table.  0x2000 - 0x200b are spaces.
+ *  The spaces 0x2000 - 0x200a are all defined as roughly equivalent to a
+ *  standard 0x20 space.  0x200b is a "zero width space" (ZWSP) and not like an
+ *  0x20 space.  0x202f is a narrow no-break space and roughly equivalent to an
+ *  0x20 space.  0x205f is a "medium mathematical space" and defined as roughly
+ *  equivalent to an 0x20 space.
+ */
+#define IS_UNI_SPACE(x) (((x)>=0x2000&&(x)<=0x200a) || (x)==0x202f || (x)==0x205f)
+/**
+ * What we are checking for:
+ * - 0x3001: Ideographic comma (-> 0x2c ',')
+ * - 0x3002: Ideographic full stop (-> 0x2e '.')
+ * - 0xff0c: fullwidth comma (~ wide 0x2c ',')
+ * - 0xff0e: fullwidth full stop (~ wide 0x2e '.')
+ * - 0xff61: halfwidth ideographic full stop (~ narrow 0x3002)
+ * - 0xff64: halfwidth ideographic comma (~ narrow 0x3001)
+ *
+ * It is possible we should be treating other things as delimiters!
+ */
+#define IS_JA_DELIM(x) (((x)==0x3001)||((x)==0xFF64)||((x)==0xFF0E)||((x)==0x3002)||((x)==0xFF61)||((x)==0xFF0C))
+
+/**
+ * The previous character was a delimeter (which includes the start of the
+ *  string).
+ */
+#define BIGRAM_RESET   0
+/**
+ * The previous character was a CJK character and we have only seen one of them.
+ *  If we had seen more than one in a row it would be the BIGRAM_USE state.
+ */
+#define BIGRAM_UNKNOWN 1
+/**
+ * We have seen two or more CJK characters in a row.
+ */
+#define BIGRAM_USE     2
+/**
+ * The previous character was ASCII or something in the unicode general scripts
+ *  area that we do not believe is a delimeter.  We call it 'alpha' as in
+ *  alphabetic/alphanumeric and something that should be tokenized based on
+ *  delimiters rather than on a bi-gram basis.
+ */
+#define BIGRAM_ALPHA   3
+
+static int isDelim(
+  const unsigned char *zCur,    /* IN: current pointer of token */
+  const unsigned char *zTerm,   /* IN: one character beyond end of token */
+  int *len,                     /* OUT: analyzed bytes in this token */
+  int *state                    /* IN/OUT: analyze state */
+){
+  const unsigned char *zIn = zCur;
+  unsigned int c;
+  int delim;
+
+  /* get the unicode character to analyze */
+  READ_UTF8(zIn, zTerm, c);
+  c = normalize_character(c);
+  *len = zIn - zCur;
+
+  /* ASCII character range has rule */
+  if( c < 0x80 ){
+    // This is original porter stemmer isDelim logic.
+    // 0x0 - 0x1f are all control characters, 0x20 is space, 0x21-0x2f are
+    //  punctuation.
+    delim = (c < 0x30 || !porterIdChar[c - 0x30]);
+    // cases: "&a", "&."
+    if (*state == BIGRAM_USE || *state == BIGRAM_UNKNOWN ){
+      /* previous maybe CJK and current is ascii */
+      *state = BIGRAM_ALPHA; /*ascii*/
+      delim = 1; /* must break */
+    } else if (delim == 1) {
+      // cases: "a.", ".."
+      /* this is delimiter character */
+      *state = BIGRAM_RESET; /*reset*/
+    } else {
+      // cases: "aa", ".a"
+      *state = BIGRAM_ALPHA; /*ascii*/
+    }
+    return delim;
+  }
+
+  // (at this point we must be a non-ASCII character)
+
+  /* voiced/semi-voiced sound mark is ignore */
+  if (isVoicedSoundMark(c) && *state != BIGRAM_ALPHA) {
+    /* ignore this because it is combined with previous char */
+   return 0;
+  }
+
+  /* this isn't CJK range, so return as no delim */
+  // Anything less than 0x2000 (except to U+0E00-U+0EFF and  U+1780-U+17FF) 
+  // is the general scripts area and should not be bi-gram indexed.
+  // 0xa000 - 0a4cf is the Yi area.  It is apparently a phonetic language whose
+  //  usage does not appear to have simple delimeter rules, so we're leaving it
+  //  as bigram processed.  This is a guess, if you know better, let us know.
+  //  (We previously bailed on this range too.)
+  // Addition, U+0E00-U+0E7F is Thai, U+0E80-U+0EFF is Laos,
+  // and U+1780-U+17FF is Khmer.  It is no easy way to break each word.
+  // So these should use bi-gram too. 
+  // cases: "aa", ".a", "&a"
+  if (c < 0xe00 ||
+     (c >= 0xf00 && c < 0x1780) ||
+     (c >= 0x1800 && c < 0x2000)) {
+    *state = BIGRAM_ALPHA; /* not really ASCII but same idea; tokenize it */
+    return 0;
+  }
+
+  // (at this point we must be a bi-grammable char or delimiter)
+
+  /* this is space character or delim character */
+  // cases: "a.", "..", "&."
+  if( IS_UNI_SPACE(c) || IS_JA_DELIM(c) ){
+    *state = BIGRAM_RESET; /* reset */
+    return 1; /* it actually is a delimiter; report as such */
+  }
+
+  // (at this point we must be a bi-grammable char)
+
+  // cases: "a&"
+  if( *state==BIGRAM_ALPHA ){
+    /* Previous is ascii and current maybe CJK */
+    *state = BIGRAM_UNKNOWN; /* mark as unknown */
+    return 1; /* break to emit the ASCII token*/
+  }
+
+  /* We have no rule for CJK!. use bi-gram */
+  // cases: "&&"
+  if( *state==BIGRAM_UNKNOWN || *state==BIGRAM_USE ){
+    /* previous state is unknown.  mark as bi-gram */
+    *state = BIGRAM_USE;
+    return 1; /* break to emit the digram */
+  }
+
+  // cases: ".&" (*state == BIGRAM_RESET)
+  *state = BIGRAM_UNKNOWN; /* mark as unknown */
+  return 0; /* no need to break; nothing to emit */
+}
+
+/**
+ * Generate a new token.  There are basically three types of token we can
+ *  generate:
+ * - A porter stemmed token.  This is a word entirely comprised of ASCII
+ *    characters.  We run the porter stemmer algorithm against the word.
+ *    Because we have no way to know what is and is not an English word
+ *    (the only language for which the porter stemmer was designed), this
+ *    could theoretically map multiple words that are not variations of the
+ *    same word down to the same root, resulting in potentially unexpected
+ *    result inclusions in the search results.  We accept this result because
+ *    there's not a lot we can do about it and false positives are much
+ *    better than false negatives.
+ * - A copied token; case/accent-folded but not stemmed.  We call the porter
+ *    stemmer for all non-CJK cases and it diverts to the copy stemmer if it
+ *    sees any non-ASCII characters (after folding) or if the string is too
+ *    long.  The copy stemmer will shrink the string if it is deemed too long.
+ * - A bi-gram token; two CJK-ish characters.  For query reasons we generate a
+ *    series of overlapping bi-grams.  (We can't require the user to start their
+ *    search based on the arbitrary context of the indexed documents.)
+ *
+ * It may be useful to think of this function as operating at the points between
+ *  characters.  While we are considering the 'current' character (the one after
+ *  the 'point'), we are also interested in the 'previous' character (the one
+ *  preceding the point).
+ * At any 'point', there are a number of possible situations which I will
+ *  illustrate with pairs of characters. 'a' means alphanumeric ASCII or a
+ *  non-ASCII character that is not bi-grammable or a delimeter, '.'
+ *  means a delimiter (space or punctuation), '&' means a bi-grammable
+ *  character.
+ * - aa: We are in the midst of a token.  State remains BIGRAM_ALPHA.
+ * - a.: We will generate a porter stemmed or copied token.  State was
+ *        BIGRAM_ALPHA, gets set to BIGRAM_RESET.
+ * - a&: We will generate a porter stemmed or copied token; we will set our
+ *        state to BIGRAM_UNKNOWN to indicate we have seen one bigram character
+ *        but that it is not yet time to emit a bigram.
+ * - .a: We are starting a token.  State was BIGRAM_RESET, gets set to
+ *        BIGRAM_ALPHA.
+ * - ..: We skip/eat the delimeters.  State stays BIGRAM_RESET.
+ * - .&: State set to BIGRAM_UNKNOWN to indicate we have seen one bigram char.
+ * - &a: If the state was BIGRAM_USE, we generate a bi-gram token.  If the state
+ *        was BIGRAM_UNKNOWN we had only seen one CJK character and so don't do
+ *        anything.  State is set to BIGRAM_ALPHA.
+ * - &.: Same as the "&a" case, but state is set to BIGRAM_RESET.
+ * - &&: We will generate a bi-gram token.  State was either BIGRAM_UNKNOWN or
+ *        BIGRAM_USE, gets set to BIGRAM_USE.
+ */
+static int porterNext(
+  sqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by porterOpen */
+  const char **pzToken,               /* OUT: *pzToken is the token text */
+  int *pnBytes,                       /* OUT: Number of bytes in token */
+  int *piStartOffset,                 /* OUT: Starting offset of token */
+  int *piEndOffset,                   /* OUT: Ending offset of token */
+  int *piPosition                     /* OUT: Position integer of token */
+){
+  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
+  const unsigned char *z = (unsigned char *) c->zInput;
+  int len = 0;
+  int state;
+
+  while( c->iOffset < c->nInput ){
+    int iStartOffset, numChars;
+
+    /*
+     * This loop basically has two modes of operation:
+     * - general processing (iPrevBigramOffset == 0 here)
+     * - CJK processing (iPrevBigramOffset != 0 here)
+     *
+     * In an general processing pass we skip over all the delimiters, leaving us
+     *  at a character that promises to produce a token.  This could be a CJK
+     *  token (state == BIGRAM_USE) or an ALPHA token (state == BIGRAM_ALPHA).
+     * If it was a CJK token, we transition into CJK state for the next loop.
+     * If it was an alpha token, our current offset is pointing at a delimiter
+     *  (which could be a CJK character), so it is good that our next pass
+     *  through the function and loop will skip over any delimiters.  If the
+     *  delimiter we hit was a CJK character, the next time through we will
+     *  not treat it as a delimiter though; the entry state for that scan is
+     *  BIGRAM_RESET so the transition is not treated as a delimiter!
+     * 
+     * The CJK pass always starts with the second character in a bi-gram emitted
+     *  as a token in the previous step.  No delimiter skipping is required
+     *  because we know that first character might produce a token for us.  It
+     *  only 'might' produce a token because the previous pass performed no
+     *  lookahead and cannot be sure it is followed by another CJK character.
+     *  This is why 
+     */
+
+    // If we have a previous bigram offset
+    if (c->iPrevBigramOffset == 0) {
+      /* Scan past delimiter characters */
+      state = BIGRAM_RESET; /* reset */
+      while (c->iOffset < c->nInput &&
+             isDelim(z + c->iOffset, z + c->nInput, &len, &state)) {
+        c->iOffset += len;
+      }
+
+    } else {
+      /* for bigram indexing, use previous offset */
+      c->iOffset = c->iPrevBigramOffset;
+    }
+
+    /* Count non-delimiter characters. */
+    iStartOffset = c->iOffset;
+    numChars = 0;
+
+    // Start from a reset state.  This means the first character we see
+    //  (which will not be a delimiter) determines which of ALPHA or CJK modes
+    //  we are operating in.  (It won't be a delimiter because in a 'general'
+    //  pass as defined above, we will have eaten all the delimiters, and in
+    //  a CJK pass we are guaranteed that the first character is CJK.)
+    state = BIGRAM_RESET; /* state is reset */
+    // Advance until it is time to emit a token.
+    // For ALPHA characters, this means advancing until we encounter a delimiter
+    //  or a CJK character.  iOffset will be pointing at the delimiter or CJK
+    //  character, aka one beyond the last ALPHA character.
+    // For CJK characters this means advancing until we encounter an ALPHA
+    //  character, a delimiter, or we have seen two consecutive CJK
+    //  characters.  iOffset points at the ALPHA/delimiter in the first 2 cases
+    //  and the second of two CJK characters in the last case.
+    // Because of the way this loop is structured, iOffset is only updated
+    //  when we don't terminate.  However, if we terminate, len still contains
+    //  the number of bytes in the character found at iOffset.  (This is useful
+    //  in the CJK case.)
+    while (c->iOffset < c->nInput &&
+           !isDelim(z + c->iOffset, z + c->nInput, &len, &state)) {
+      c->iOffset += len;
+      numChars++;
+    }
+
+    if (state == BIGRAM_USE) {
+      /* Split word by bigram */
+      // Right now iOffset is pointing at the second character in a pair.
+      //  Save this offset so next-time through we start with that as the
+      //  first character.
+      c->iPrevBigramOffset = c->iOffset;
+      // And now advance so that iOffset is pointing at the character after
+      //  the second character in the bi-gram pair.  Also count the char.
+      c->iOffset += len;
+      numChars++;
+    } else {
+      /* Reset bigram offset */
+      c->iPrevBigramOffset = 0;
+    }
+
+    /* We emit a token if:
+     *  - there are two ideograms together,
+     *  - there are three chars or more,
+     *  - we think this is a query and wildcard magic is desired.
+     * We think is a wildcard query when we have a single character, it starts
+     *  at the start of the buffer, it's CJK, our current offset is one shy of
+     *  nInput and the character at iOffset is '*'.  Because the state gets
+     *  clobbered by the incidence of '*' our requirement for CJK is that the
+     *  implied character length is at least 3 given that it takes at least 3
+     *  bytes to encode to 0x2000.
+     */
+    // It is possible we have no token to emit here if iPrevBigramOffset was not
+    //  0 on entry and there was no second CJK character.  iPrevBigramOffset
+    //  will now be 0 if that is the case (and c->iOffset == iStartOffset).
+    if (// allow two-character words only if in bigram
+        (numChars == 2 && state == BIGRAM_USE) ||
+        // otherwise, drop two-letter words (considered stop-words)
+        (numChars >=3) ||
+        // wildcard case:
+        (numChars == 1 && iStartOffset == 0 &&
+         (c->iOffset >= 3) &&
+         (c->iOffset == c->nInput - 1) &&
+         (z[c->iOffset] == '*'))) {
+      /* figure out the number of bytes to copy/stem */
+      int n = c->iOffset - iStartOffset;
+      /* make sure there is enough buffer space */
+      if (n * MAX_UTF8_GROWTH_FACTOR > c->nAllocated) {
+        c->nAllocated = n * MAX_UTF8_GROWTH_FACTOR + 20;
+        c->zToken = sqlite3_realloc(c->zToken, c->nAllocated);
+        if (c->zToken == NULL)
+          return SQLITE_NOMEM;
+      }
+
+      if (state == BIGRAM_USE) {
+        /* This is by bigram. So it is unnecessary to convert word */
+        copy_stemmer(&z[iStartOffset], n, c->zToken, pnBytes);
+      } else {
+        porter_stemmer(&z[iStartOffset], n, c->zToken, pnBytes);
+      }
+      *pzToken = (const char*)c->zToken;
+      *piStartOffset = iStartOffset;
+      *piEndOffset = c->iOffset;
+      *piPosition = c->iToken++;
+      return SQLITE_OK;
+    }
+  }
+  return SQLITE_DONE;
+}
+
+/*
+** The set of routines that implement the porter-stemmer tokenizer
+*/
+static const sqlite3_tokenizer_module porterTokenizerModule = {
+  0,
+  porterCreate,
+  porterDestroy,
+  porterOpen,
+  porterClose,
+  porterNext,
+};
+
+/*
+** Allocate a new porter tokenizer.  Return a pointer to the new
+** tokenizer in *ppModule
+*/
+void sqlite3Fts3PorterTokenizerModule(
+  sqlite3_tokenizer_module const**ppModule
+){
+  *ppModule = &porterTokenizerModule;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/mailnews/extensions/fts3/src/fts3_tokenizer.h b/mailnews/extensions/fts3/src/fts3_tokenizer.h
new file mode 100644
index 000000000..906303db4
--- /dev/null
+++ b/mailnews/extensions/fts3/src/fts3_tokenizer.h
@@ -0,0 +1,148 @@
+/*
+** 2006 July 10
+**
+** The author disclaims copyright to this source code.
+**
+*************************************************************************
+** Defines the interface to tokenizers used by fulltext-search.  There
+** are three basic components:
+**
+** sqlite3_tokenizer_module is a singleton defining the tokenizer
+** interface functions.  This is essentially the class structure for
+** tokenizers.
+**
+** sqlite3_tokenizer is used to define a particular tokenizer, perhaps
+** including customization information defined at creation time.
+**
+** sqlite3_tokenizer_cursor is generated by a tokenizer to generate
+** tokens from a particular input.
+*/
+#ifndef _FTS3_TOKENIZER_H_
+#define _FTS3_TOKENIZER_H_
+
+/* TODO(shess) Only used for SQLITE_OK and SQLITE_DONE at this time.
+** If tokenizers are to be allowed to call sqlite3_*() functions, then
+** we will need a way to register the API consistently.
+*/
+#include "sqlite3.h"
+
+/*
+** Structures used by the tokenizer interface. When a new tokenizer
+** implementation is registered, the caller provides a pointer to
+** an sqlite3_tokenizer_module containing pointers to the callback
+** functions that make up an implementation.
+**
+** When an fts3 table is created, it passes any arguments passed to
+** the tokenizer clause of the CREATE VIRTUAL TABLE statement to the
+** sqlite3_tokenizer_module.xCreate() function of the requested tokenizer
+** implementation. The xCreate() function in turn returns an 
+** sqlite3_tokenizer structure representing the specific tokenizer to
+** be used for the fts3 table (customized by the tokenizer clause arguments).
+**
+** To tokenize an input buffer, the sqlite3_tokenizer_module.xOpen()
+** method is called. It returns an sqlite3_tokenizer_cursor object
+** that may be used to tokenize a specific input buffer based on
+** the tokenization rules supplied by a specific sqlite3_tokenizer
+** object.
+*/
+typedef struct sqlite3_tokenizer_module sqlite3_tokenizer_module;
+typedef struct sqlite3_tokenizer sqlite3_tokenizer;
+typedef struct sqlite3_tokenizer_cursor sqlite3_tokenizer_cursor;
+
+struct sqlite3_tokenizer_module {
+
+  /*
+  ** Structure version. Should always be set to 0.
+  */
+  int iVersion;
+
+  /*
+  ** Create a new tokenizer. The values in the argv[] array are the
+  ** arguments passed to the "tokenizer" clause of the CREATE VIRTUAL
+  ** TABLE statement that created the fts3 table. For example, if
+  ** the following SQL is executed:
+  **
+  **   CREATE .. USING fts3( ... , tokenizer <tokenizer-name> arg1 arg2)
+  **
+  ** then argc is set to 2, and the argv[] array contains pointers
+  ** to the strings "arg1" and "arg2".
+  **
+  ** This method should return either SQLITE_OK (0), or an SQLite error 
+  ** code. If SQLITE_OK is returned, then *ppTokenizer should be set
+  ** to point at the newly created tokenizer structure. The generic
+  ** sqlite3_tokenizer.pModule variable should not be initialised by
+  ** this callback. The caller will do so.
+  */
+  int (*xCreate)(
+    int argc,                           /* Size of argv array */
+    const char *const*argv,             /* Tokenizer argument strings */
+    sqlite3_tokenizer **ppTokenizer     /* OUT: Created tokenizer */
+  );
+
+  /*
+  ** Destroy an existing tokenizer. The fts3 module calls this method
+  ** exactly once for each successful call to xCreate().
+  */
+  int (*xDestroy)(sqlite3_tokenizer *pTokenizer);
+
+  /*
+  ** Create a tokenizer cursor to tokenize an input buffer. The caller
+  ** is responsible for ensuring that the input buffer remains valid
+  ** until the cursor is closed (using the xClose() method). 
+  */
+  int (*xOpen)(
+    sqlite3_tokenizer *pTokenizer,       /* Tokenizer object */
+    const char *pInput, int nBytes,      /* Input buffer */
+    sqlite3_tokenizer_cursor **ppCursor  /* OUT: Created tokenizer cursor */
+  );
+
+  /*
+  ** Destroy an existing tokenizer cursor. The fts3 module calls this 
+  ** method exactly once for each successful call to xOpen().
+  */
+  int (*xClose)(sqlite3_tokenizer_cursor *pCursor);
+
+  /*
+  ** Retrieve the next token from the tokenizer cursor pCursor. This
+  ** method should either return SQLITE_OK and set the values of the
+  ** "OUT" variables identified below, or SQLITE_DONE to indicate that
+  ** the end of the buffer has been reached, or an SQLite error code.
+  **
+  ** *ppToken should be set to point at a buffer containing the 
+  ** normalized version of the token (i.e. after any case-folding and/or
+  ** stemming has been performed). *pnBytes should be set to the length
+  ** of this buffer in bytes. The input text that generated the token is
+  ** identified by the byte offsets returned in *piStartOffset and
+  ** *piEndOffset. *piStartOffset should be set to the index of the first
+  ** byte of the token in the input buffer. *piEndOffset should be set
+  ** to the index of the first byte just past the end of the token in
+  ** the input buffer.
+  **
+  ** The buffer *ppToken is set to point at is managed by the tokenizer
+  ** implementation. It is only required to be valid until the next call
+  ** to xNext() or xClose(). 
+  */
+  /* TODO(shess) current implementation requires pInput to be
+  ** nul-terminated.  This should either be fixed, or pInput/nBytes
+  ** should be converted to zInput.
+  */
+  int (*xNext)(
+    sqlite3_tokenizer_cursor *pCursor,   /* Tokenizer cursor */
+    const char **ppToken, int *pnBytes,  /* OUT: Normalized text for token */
+    int *piStartOffset,  /* OUT: Byte offset of token in input buffer */
+    int *piEndOffset,    /* OUT: Byte offset of end of token in input buffer */
+    int *piPosition      /* OUT: Number of tokens returned before this one */
+  );
+};
+
+struct sqlite3_tokenizer {
+  const sqlite3_tokenizer_module *pModule;  /* The module for this tokenizer */
+  /* Tokenizer implementations will typically add additional fields */
+};
+
+struct sqlite3_tokenizer_cursor {
+  sqlite3_tokenizer *pTokenizer;       /* Tokenizer for this cursor. */
+  /* Tokenizer implementations will typically add additional fields */
+};
+
+#endif /* _FTS3_TOKENIZER_H_ */
diff --git a/mailnews/extensions/fts3/src/moz.build b/mailnews/extensions/fts3/src/moz.build
new file mode 100644
index 000000000..a2b3c60d5
--- /dev/null
+++ b/mailnews/extensions/fts3/src/moz.build
@@ -0,0 +1,18 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+    'fts3_porter.c',
+    'Normalize.c',
+]
+
+SOURCES += [
+    'nsFts3Tokenizer.cpp',
+    'nsGlodaRankerFunction.cpp',
+]
+
+FINAL_LIBRARY = 'mail'
+
+CXXFLAGS += CONFIG['SQLITE_CFLAGS']
diff --git a/mailnews/extensions/fts3/src/nsFts3Tokenizer.cpp b/mailnews/extensions/fts3/src/nsFts3Tokenizer.cpp
new file mode 100644
index 000000000..12bd70ead
--- /dev/null
+++ b/mailnews/extensions/fts3/src/nsFts3Tokenizer.cpp
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsFts3Tokenizer.h"
+
+#include "nsGlodaRankerFunction.h"
+
+#include "nsIFts3Tokenizer.h"
+#include "mozIStorageConnection.h"
+#include "mozIStorageStatement.h"
+#include "nsStringGlue.h"
+
+extern "C" void sqlite3Fts3PorterTokenizerModule(
+  sqlite3_tokenizer_module const**ppModule);
+
+extern "C" void glodaRankFunc(sqlite3_context *pCtx,
+                              int nVal,
+                              sqlite3_value **apVal);
+
+NS_IMPL_ISUPPORTS(nsFts3Tokenizer,nsIFts3Tokenizer)
+
+nsFts3Tokenizer::nsFts3Tokenizer()
+{
+}
+
+nsFts3Tokenizer::~nsFts3Tokenizer()
+{
+}
+
+NS_IMETHODIMP
+nsFts3Tokenizer::RegisterTokenizer(mozIStorageConnection *connection)
+{
+  nsresult rv;
+  nsCOMPtr<mozIStorageStatement> selectStatement;
+
+  // -- register the tokenizer
+  rv = connection->CreateStatement(NS_LITERAL_CSTRING(
+    "SELECT fts3_tokenizer(?1, ?2)"),
+    getter_AddRefs(selectStatement));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  const sqlite3_tokenizer_module* module = nullptr;
+  sqlite3Fts3PorterTokenizerModule(&module);
+  if (!module)
+    return NS_ERROR_FAILURE;
+
+  rv = selectStatement->BindUTF8StringParameter(
+         0, NS_LITERAL_CSTRING("mozporter"));
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = selectStatement->BindBlobParameter(1,
+                                          (uint8_t*)&module,
+                                          sizeof(module));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool hasMore;
+  rv = selectStatement->ExecuteStep(&hasMore);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // -- register the ranking function
+  nsCOMPtr<mozIStorageFunction> func = new nsGlodaRankerFunction();
+  NS_ENSURE_TRUE(func, NS_ERROR_OUT_OF_MEMORY);
+  rv = connection->CreateFunction(
+         NS_LITERAL_CSTRING("glodaRank"),
+         -1, // variable argument support
+         func
+       );
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return rv;
+}
diff --git a/mailnews/extensions/fts3/src/nsFts3Tokenizer.h b/mailnews/extensions/fts3/src/nsFts3Tokenizer.h
new file mode 100644
index 000000000..eb1e83bd5
--- /dev/null
+++ b/mailnews/extensions/fts3/src/nsFts3Tokenizer.h
@@ -0,0 +1,26 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsFts3Tokenizer_h__
+#define nsFts3Tokenizer_h__
+
+#include "nsCOMPtr.h"
+#include "nsIFts3Tokenizer.h"
+#include "fts3_tokenizer.h"
+
+extern const sqlite3_tokenizer_module* getWindowsTokenizer();
+
+class nsFts3Tokenizer final : public nsIFts3Tokenizer {
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIFTS3TOKENIZER
+
+    nsFts3Tokenizer();
+
+private:
+  ~nsFts3Tokenizer();
+};
+
+#endif
diff --git a/mailnews/extensions/fts3/src/nsFts3TokenizerCID.h b/mailnews/extensions/fts3/src/nsFts3TokenizerCID.h
new file mode 100644
index 000000000..1f9c101bc
--- /dev/null
+++ b/mailnews/extensions/fts3/src/nsFts3TokenizerCID.h
@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ 
+#ifndef nsFts3TokenizerCID_h__
+#define nsFts3TokenizerCID_h__
+
+#define NS_FTS3TOKENIZER_CONTRACTID \
+  "@mozilla.org/messenger/fts3tokenizer;1"
+#define NS_FTS3TOKENIZER_CID			\
+{ /* a67d724d-0015-4e2e-8cad-b84775330924 */	\
+  0xa67d724d, 0x0015, 0x4e2e,			\
+  { 0x8c, 0xad, 0xb8, 0x47, 0x75, 0x33, 0x09, 0x24 }}
+
+#endif /* nsFts3TokenizerCID_h__ */
diff --git a/mailnews/extensions/fts3/src/nsGlodaRankerFunction.cpp b/mailnews/extensions/fts3/src/nsGlodaRankerFunction.cpp
new file mode 100644
index 000000000..fb576685d
--- /dev/null
+++ b/mailnews/extensions/fts3/src/nsGlodaRankerFunction.cpp
@@ -0,0 +1,145 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ *   Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Thunderbird Global Database.
+ *
+ * The Initial Developer of the Original Code is the Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Andrew Sutherland <asutherland@asutherland.org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsGlodaRankerFunction.h"
+#include "mozIStorageValueArray.h"
+
+#include "sqlite3.h"
+
+#include "nsCOMPtr.h"
+#include "nsVariant.h"
+#include "nsComponentManagerUtils.h"
+
+#ifndef SQLITE_VERSION_NUMBER
+#error "We need SQLITE_VERSION_NUMBER defined!"
+#endif
+
+NS_IMPL_ISUPPORTS(nsGlodaRankerFunction, mozIStorageFunction)
+
+nsGlodaRankerFunction::nsGlodaRankerFunction()
+{
+}
+
+nsGlodaRankerFunction::~nsGlodaRankerFunction()
+{
+}
+
+static uint32_t COLUMN_SATURATION[] = {10, 1, 1, 1, 1};
+
+/**
+ * Our ranking function basically just multiplies the weight of the column
+ * against the number of (saturating) matches.
+ *
+ * The original code is a SQLite example ranking function, although somewhat
+ * rather modified at this point.  All SQLite code is public domain, so we are
+ * subsuming it to MPL1.1/LGPL2/GPL2.
+ */
+NS_IMETHODIMP
+nsGlodaRankerFunction::OnFunctionCall(mozIStorageValueArray *aArguments,
+                                      nsIVariant **_result)
+{
+  // all argument names are maintained from the original SQLite code.
+  uint32_t nVal;
+  nsresult rv = aArguments->GetNumEntries(&nVal);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  /* Check that the number of arguments passed to this function is correct.
+   * If not, return an error. Set aArgsData to point to the array
+   * of unsigned integer values returned by FTS3 function. Set nPhrase
+   * to contain the number of reportable phrases in the users full-text
+   * query, and nCol to the number of columns in the table.
+   */
+  if (nVal < 1)
+    return NS_ERROR_INVALID_ARG;
+
+  uint32_t lenArgsData;
+  uint32_t *aArgsData = (uint32_t *)aArguments->AsSharedBlob(0, &lenArgsData);
+
+  uint32_t nPhrase = aArgsData[0];
+  uint32_t nCol = aArgsData[1];
+  if (nVal != (1 + nCol))
+    return NS_ERROR_INVALID_ARG;
+
+  double score = 0.0;
+
+  // SQLite 3.6.22 has a different matchinfo layout than SQLite 3.6.23+
+#if SQLITE_VERSION_NUMBER <= 3006022
+  /* Iterate through each phrase in the users query. */
+  for (uint32_t iPhrase = 0; iPhrase < nPhrase; iPhrase++) {
+    // in SQ
+    for (uint32_t iCol = 0; iCol < nCol; iCol++) {
+      uint32_t nHitCount = aArgsData[2 + (iPhrase+1)*nCol + iCol];
+      double weight = aArguments->AsDouble(iCol+1);
+      if (nHitCount > 0) {
+        score += (nHitCount > COLUMN_SATURATION[iCol]) ?
+          (COLUMN_SATURATION[iCol] * weight) :
+          (nHitCount * weight);
+      }
+    }
+  }
+#else
+  /* Iterate through each phrase in the users query. */
+  for (uint32_t iPhrase = 0; iPhrase < nPhrase; iPhrase++) {
+    /* Now iterate through each column in the users query. For each column,
+    ** increment the relevancy score by:
+    **
+    **   (<hit count> / <global hit count>) * <column weight>
+    **
+    ** aPhraseinfo[] points to the start of the data for phrase iPhrase. So
+    ** the hit count and global hit counts for each column are found in 
+    ** aPhraseinfo[iCol*3] and aPhraseinfo[iCol*3+1], respectively.
+    */
+    uint32_t *aPhraseinfo = &aArgsData[2 + iPhrase*nCol*3];
+    for (uint32_t iCol = 0; iCol < nCol; iCol++) {
+      uint32_t nHitCount = aPhraseinfo[3 * iCol];
+      double weight = aArguments->AsDouble(iCol+1);
+      if (nHitCount > 0) {
+        score += (nHitCount > COLUMN_SATURATION[iCol]) ?
+          (COLUMN_SATURATION[iCol] * weight) :
+          (nHitCount * weight);
+      }
+    }
+  }
+#endif
+
+  nsCOMPtr<nsIWritableVariant> result = new nsVariant();
+   
+  rv = result->SetAsDouble(score);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  NS_ADDREF(*_result = result);
+  return NS_OK;
+}
diff --git a/mailnews/extensions/fts3/src/nsGlodaRankerFunction.h b/mailnews/extensions/fts3/src/nsGlodaRankerFunction.h
new file mode 100644
index 000000000..5c5c920d0
--- /dev/null
+++ b/mailnews/extensions/fts3/src/nsGlodaRankerFunction.h
@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsGlodaRankerFunction_h_
+#define _nsGlodaRankerFunction_h_
+
+#include "mozIStorageFunction.h"
+
+/**
+ * Basically a port of the example FTS3 ranking function to mozStorage's
+ * view of the universe.  This might get fancier at some point.
+ */
+class nsGlodaRankerFunction final : public mozIStorageFunction
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_MOZISTORAGEFUNCTION
+
+  nsGlodaRankerFunction();
+private:
+  ~nsGlodaRankerFunction();
+};
+
+#endif // _nsGlodaRankerFunction_h_
diff --git a/mailnews/extensions/mailviews/content/mailViews.dat b/mailnews/extensions/mailviews/content/mailViews.dat
new file mode 100644
index 000000000..8565d0061
--- /dev/null
+++ b/mailnews/extensions/mailviews/content/mailViews.dat
@@ -0,0 +1,22 @@
+version="8"
+logging="no"
+name="People I Know"
+enabled="yes"
+type="1"
+condition="AND (from,is in ab,moz-abmdbdirectory://abook.mab)"
+name="Recent Mail"
+enabled="yes"
+type="1"
+condition="AND (age in days,is less than,1)"
+name="Last 5 Days"
+enabled="yes"
+type="1"
+condition="AND (age in days,is less than,5)"
+name="Not Junk"
+enabled="yes"
+type="1"
+condition="AND (junk status,isn't,2)"
+name="Has Attachments"
+enabled="yes"
+type="1"
+condition="AND (has attachment status,is,true)"
diff --git a/mailnews/extensions/mailviews/content/moz.build b/mailnews/extensions/mailviews/content/moz.build
new file mode 100644
index 000000000..f5564e55b
--- /dev/null
+++ b/mailnews/extensions/mailviews/content/moz.build
@@ -0,0 +1,8 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+FINAL_TARGET_FILES.defaults.messenger += [
+    'mailViews.dat',
+]
diff --git a/mailnews/extensions/mailviews/public/moz.build b/mailnews/extensions/mailviews/public/moz.build
new file mode 100644
index 000000000..4d8dd8287
--- /dev/null
+++ b/mailnews/extensions/mailviews/public/moz.build
@@ -0,0 +1,12 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+XPIDL_SOURCES += [
+    'nsIMsgMailView.idl',
+    'nsIMsgMailViewList.idl',
+]
+
+XPIDL_MODULE = 'mailview'
+
diff --git a/mailnews/extensions/mailviews/public/nsIMsgMailView.idl b/mailnews/extensions/mailviews/public/nsIMsgMailView.idl
new file mode 100644
index 000000000..54f22e76f
--- /dev/null
+++ b/mailnews/extensions/mailviews/public/nsIMsgMailView.idl
@@ -0,0 +1,35 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#include "nsISupports.idl"
+// Disable deprecation warnings generated by nsISupportsArray and associated
+// classes.
+%{C++
+#if defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#elif defined(_MSC_VER)
+#pragma warning (disable : 4996)
+#endif
+%}
+interface nsISupportsArray;
+
+interface nsIMsgSearchTerm;
+
+[scriptable, uuid(28AC84DF-CBE5-430d-A5C0-4FA63B5424DF)]
+interface nsIMsgMailView : nsISupports {
+    attribute wstring mailViewName;
+	readonly attribute wstring prettyName; // localized pretty name
+
+    // the array of search terms 
+    attribute nsISupportsArray searchTerms;
+
+    // these two helper methods are required to allow searchTermsOverlay.js to
+    // manipulate a mail view without knowing it is dealing with a mail view. nsIMsgFilter
+    // and nsIMsgSearchSession have the same two methods....we should probably make an interface around them.
+	void appendTerm(in nsIMsgSearchTerm term);
+	nsIMsgSearchTerm createTerm();
+
+};
diff --git a/mailnews/extensions/mailviews/public/nsIMsgMailViewList.idl b/mailnews/extensions/mailviews/public/nsIMsgMailViewList.idl
new file mode 100644
index 000000000..e0c846dae
--- /dev/null
+++ b/mailnews/extensions/mailviews/public/nsIMsgMailViewList.idl
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+#include "nsIMsgMailView.idl"
+
+///////////////////////////////////////////////////////////////////////////////
+// A mail view list is a list of mail views a particular implementor provides
+///////////////////////////////////////////////////////////////////////////////
+
+typedef long nsMsgMailViewListFileAttribValue;
+
+[scriptable, uuid(6DD798D7-9528-49e6-9447-3AAF14D2D36F)]
+interface nsIMsgMailViewList : nsISupports {
+
+    readonly attribute unsigned long mailViewCount;
+
+    nsIMsgMailView getMailViewAt(in unsigned long mailViewIndex);
+
+    void addMailView(in nsIMsgMailView mailView); 
+    void removeMailView(in nsIMsgMailView mailView);
+
+    nsIMsgMailView createMailView();
+
+    void save();    
+};
diff --git a/mailnews/extensions/mailviews/src/moz.build b/mailnews/extensions/mailviews/src/moz.build
new file mode 100644
index 000000000..ee128fb8a
--- /dev/null
+++ b/mailnews/extensions/mailviews/src/moz.build
@@ -0,0 +1,11 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+    'nsMsgMailViewList.cpp',
+]
+
+FINAL_LIBRARY = 'mail'
+
diff --git a/mailnews/extensions/mailviews/src/nsMsgMailViewList.cpp b/mailnews/extensions/mailviews/src/nsMsgMailViewList.cpp
new file mode 100644
index 000000000..8e5e04a3f
--- /dev/null
+++ b/mailnews/extensions/mailviews/src/nsMsgMailViewList.cpp
@@ -0,0 +1,312 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsMsgMailViewList.h"
+// Disable deprecation warnings generated by nsISupportsArray and associated
+// classes.
+#if defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#elif defined(_MSC_VER)
+#pragma warning (disable : 4996)
+#endif
+#include "nsISupportsArray.h"
+#include "nsIFileChannel.h"
+#include "nsIMsgFilterService.h"
+#include "nsIMsgMailSession.h"
+#include "nsIMsgSearchTerm.h"
+#include "nsMsgBaseCID.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsIFile.h"
+#include "nsComponentManagerUtils.h"
+#include "mozilla/Services.h"
+#include "nsIMsgFilter.h"
+
+#define kDefaultViewPeopleIKnow "People I Know"
+#define kDefaultViewRecent "Recent Mail"
+#define kDefaultViewFiveDays "Last 5 Days"
+#define kDefaultViewNotJunk "Not Junk"
+#define kDefaultViewHasAttachments "Has Attachments"
+ 
+nsMsgMailView::nsMsgMailView()
+{
+    mViewSearchTerms = do_CreateInstance(NS_SUPPORTSARRAY_CONTRACTID);
+}
+
+NS_IMPL_ADDREF(nsMsgMailView)
+NS_IMPL_RELEASE(nsMsgMailView)
+NS_IMPL_QUERY_INTERFACE(nsMsgMailView, nsIMsgMailView)
+
+nsMsgMailView::~nsMsgMailView()
+{
+    if (mViewSearchTerms)
+        mViewSearchTerms->Clear();
+}
+
+NS_IMETHODIMP nsMsgMailView::GetMailViewName(char16_t ** aMailViewName)
+{
+    NS_ENSURE_ARG_POINTER(aMailViewName);
+
+    *aMailViewName = ToNewUnicode(mName);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailView::SetMailViewName(const char16_t * aMailViewName)
+{
+    mName = aMailViewName;
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailView::GetPrettyName(char16_t ** aMailViewName)
+{
+    NS_ENSURE_ARG_POINTER(aMailViewName);
+
+    nsresult rv = NS_OK;
+    if (!mBundle)
+    {
+        nsCOMPtr<nsIStringBundleService> bundleService =
+          mozilla::services::GetStringBundleService();
+        NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+        bundleService->CreateBundle("chrome://messenger/locale/mailviews.properties",
+                                    getter_AddRefs(mBundle));
+    }
+
+    NS_ENSURE_TRUE(mBundle, NS_ERROR_FAILURE);
+
+    // see if mName has an associated pretty name inside our string bundle and if so, use that as the pretty name
+    // otherwise just return mName
+    if (mName.EqualsLiteral(kDefaultViewPeopleIKnow))
+        rv = mBundle->GetStringFromName(u"mailViewPeopleIKnow", aMailViewName);
+    else if (mName.EqualsLiteral(kDefaultViewRecent))
+        rv = mBundle->GetStringFromName(u"mailViewRecentMail", aMailViewName);
+    else if (mName.EqualsLiteral(kDefaultViewFiveDays))
+        rv = mBundle->GetStringFromName(u"mailViewLastFiveDays", aMailViewName);
+    else if (mName.EqualsLiteral(kDefaultViewNotJunk))
+        rv = mBundle->GetStringFromName(u"mailViewNotJunk", aMailViewName);
+    else if (mName.EqualsLiteral(kDefaultViewHasAttachments))
+        rv = mBundle->GetStringFromName(u"mailViewHasAttachments", aMailViewName);
+    else
+        *aMailViewName = ToNewUnicode(mName);
+
+    return rv;
+}
+
+NS_IMETHODIMP nsMsgMailView::GetSearchTerms(nsISupportsArray ** aSearchTerms)
+{
+    NS_ENSURE_ARG_POINTER(aSearchTerms);
+    NS_IF_ADDREF(*aSearchTerms = mViewSearchTerms);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailView::SetSearchTerms(nsISupportsArray * aSearchTerms)
+{
+    mViewSearchTerms = aSearchTerms;
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailView::AppendTerm(nsIMsgSearchTerm * aTerm)
+{
+    NS_ENSURE_TRUE(aTerm, NS_ERROR_NULL_POINTER);
+    
+    return mViewSearchTerms->AppendElement(static_cast<nsISupports*>(aTerm));
+}
+
+NS_IMETHODIMP nsMsgMailView::CreateTerm(nsIMsgSearchTerm **aResult)
+{
+    NS_ENSURE_ARG_POINTER(aResult);
+    nsCOMPtr<nsIMsgSearchTerm> searchTerm = do_CreateInstance("@mozilla.org/messenger/searchTerm;1");
+    NS_IF_ADDREF(*aResult = searchTerm);
+    return NS_OK;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// nsMsgMailViewList implementation
+/////////////////////////////////////////////////////////////////////////////
+nsMsgMailViewList::nsMsgMailViewList()
+{
+    LoadMailViews();
+}
+
+NS_IMPL_ADDREF(nsMsgMailViewList)
+NS_IMPL_RELEASE(nsMsgMailViewList)
+NS_IMPL_QUERY_INTERFACE(nsMsgMailViewList, nsIMsgMailViewList)
+
+nsMsgMailViewList::~nsMsgMailViewList()
+{
+
+}
+
+NS_IMETHODIMP nsMsgMailViewList::GetMailViewCount(uint32_t * aCount)
+{
+    NS_ENSURE_ARG_POINTER(aCount);
+
+    *aCount = m_mailViews.Length();
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailViewList::GetMailViewAt(uint32_t aMailViewIndex, nsIMsgMailView ** aMailView)
+{
+    NS_ENSURE_ARG_POINTER(aMailView);
+
+    uint32_t mailViewCount = m_mailViews.Length();
+
+    NS_ENSURE_ARG(mailViewCount > aMailViewIndex);
+
+    NS_IF_ADDREF(*aMailView = m_mailViews[aMailViewIndex]);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailViewList::AddMailView(nsIMsgMailView * aMailView)
+{
+    NS_ENSURE_ARG_POINTER(aMailView);
+
+    m_mailViews.AppendElement(aMailView);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailViewList::RemoveMailView(nsIMsgMailView * aMailView)
+{
+    NS_ENSURE_ARG_POINTER(aMailView);
+
+    m_mailViews.RemoveElement(aMailView);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailViewList::CreateMailView(nsIMsgMailView ** aMailView)
+{
+    NS_ENSURE_ARG_POINTER(aMailView);
+
+    nsMsgMailView * mailView = new nsMsgMailView;
+    NS_ENSURE_TRUE(mailView, NS_ERROR_OUT_OF_MEMORY);
+
+    NS_IF_ADDREF(*aMailView = mailView);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMailViewList::Save()
+{
+    // brute force...remove all the old filters in our filter list, then we'll re-add our current
+    // list
+    nsCOMPtr<nsIMsgFilter> msgFilter;
+    uint32_t numFilters = 0;
+    if (mFilterList)
+      mFilterList->GetFilterCount(&numFilters);
+    while (numFilters)
+    {
+        mFilterList->RemoveFilterAt(numFilters - 1);
+        numFilters--;
+    }
+
+    // now convert our mail view list into a filter list and save it
+    ConvertMailViewListToFilterList();
+
+    // now save the filters to our file
+    return mFilterList ? mFilterList->SaveToDefaultFile() : NS_ERROR_FAILURE;
+}
+
+nsresult nsMsgMailViewList::ConvertMailViewListToFilterList()
+{
+  uint32_t mailViewCount = m_mailViews.Length();
+  nsCOMPtr<nsIMsgMailView> mailView;
+  nsCOMPtr<nsIMsgFilter> newMailFilter;
+  nsString mailViewName;
+  for (uint32_t index = 0; index < mailViewCount; index++)
+  {
+      GetMailViewAt(index, getter_AddRefs(mailView));
+      if (!mailView)
+          continue;
+      mailView->GetMailViewName(getter_Copies(mailViewName));
+      mFilterList->CreateFilter(mailViewName, getter_AddRefs(newMailFilter));
+      if (!newMailFilter)
+          continue;
+
+      nsCOMPtr<nsISupportsArray> searchTerms;
+      mailView->GetSearchTerms(getter_AddRefs(searchTerms));
+      newMailFilter->SetSearchTerms(searchTerms);
+      mFilterList->InsertFilterAt(index, newMailFilter);
+  }
+
+  return NS_OK;
+}
+
+nsresult nsMsgMailViewList::LoadMailViews()
+{
+    nsCOMPtr<nsIFile> file;
+    nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = file->AppendNative(nsDependentCString("mailViews.dat"));
+
+    // if the file doesn't exist, we should try to get it from the defaults directory and copy it over
+    bool exists = false;
+    file->Exists(&exists);
+    if (!exists)
+    {
+        nsCOMPtr<nsIMsgMailSession> mailSession = do_GetService(NS_MSGMAILSESSION_CONTRACTID, &rv);
+        NS_ENSURE_SUCCESS(rv, rv);
+        nsCOMPtr<nsIFile> defaultMessagesFile;
+        nsCOMPtr<nsIFile> profileDir;
+        rv = mailSession->GetDataFilesDir("messenger", getter_AddRefs(defaultMessagesFile));
+        rv = defaultMessagesFile->AppendNative(nsDependentCString("mailViews.dat"));
+
+         // get the profile directory
+        rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(profileDir));
+        
+        // now copy the file over to the profile directory
+        defaultMessagesFile->CopyToNative(profileDir, EmptyCString());
+    }
+    // this is kind of a hack but I think it will be an effective hack. The filter service already knows how to 
+    // take a nsIFile and parse the contents into filters which are very similar to mail views. Intead of
+    // re-writing all of that dirty parsing code, let's just re-use it then convert the results into a data strcuture
+    // we wish to give to our consumers. 
+      
+    nsCOMPtr<nsIMsgFilterService> filterService = do_GetService(NS_MSGFILTERSERVICE_CONTRACTID, &rv);
+    nsCOMPtr<nsIMsgFilterList> mfilterList;
+      
+    rv = filterService->OpenFilterList(file, nullptr, nullptr, getter_AddRefs(mFilterList));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    return ConvertFilterListToMailViews();
+}
+/**
+ * Converts the filter list into our mail view objects,
+ * stripping out just the info we need.
+ */
+nsresult nsMsgMailViewList::ConvertFilterListToMailViews()
+{
+    nsresult rv = NS_OK;
+    m_mailViews.Clear();
+
+    // iterate over each filter in the list
+    uint32_t numFilters = 0;
+    mFilterList->GetFilterCount(&numFilters);
+    for (uint32_t index = 0; index < numFilters; index++)
+    {
+        nsCOMPtr<nsIMsgFilter> msgFilter;
+        rv = mFilterList->GetFilterAt(index, getter_AddRefs(msgFilter));
+        if (NS_FAILED(rv) || !msgFilter)
+            continue;
+
+        // create a new nsIMsgMailView for this item
+        nsCOMPtr<nsIMsgMailView> newMailView;
+        rv = CreateMailView(getter_AddRefs(newMailView));
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        nsString filterName;
+        msgFilter->GetFilterName(filterName);
+        newMailView->SetMailViewName(filterName.get());
+
+        nsCOMPtr<nsISupportsArray> filterSearchTerms;
+        rv = msgFilter->GetSearchTerms(getter_AddRefs(filterSearchTerms));
+        NS_ENSURE_SUCCESS(rv, rv);
+        rv = newMailView->SetSearchTerms(filterSearchTerms);
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        // now append this new mail view to our global list view
+        m_mailViews.AppendElement(newMailView);
+    }
+
+    return rv;
+}
diff --git a/mailnews/extensions/mailviews/src/nsMsgMailViewList.h b/mailnews/extensions/mailviews/src/nsMsgMailViewList.h
new file mode 100644
index 000000000..321803392
--- /dev/null
+++ b/mailnews/extensions/mailviews/src/nsMsgMailViewList.h
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#ifndef _nsMsgMailViewList_H_
+#define _nsMsgMailViewList_H_
+
+#include "nscore.h"
+#include "nsIMsgMailViewList.h"
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+// Disable deprecation warnings generated by nsISupportsArray and associated
+// classes.
+#if defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#elif defined(_MSC_VER)
+#pragma warning (disable : 4996)
+#endif
+#include "nsISupportsArray.h"
+#include "nsIStringBundle.h"
+#include "nsStringGlue.h"
+#include "nsIMsgFilterList.h"
+
+// a mail View is just a name and an array of search terms
+class nsMsgMailView : public nsIMsgMailView
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMSGMAILVIEW
+
+  nsMsgMailView();
+
+protected:
+  virtual ~nsMsgMailView();
+  nsString mName;
+  nsCOMPtr<nsIStringBundle> mBundle;
+  nsCOMPtr<nsISupportsArray> mViewSearchTerms;
+};
+
+
+class nsMsgMailViewList : public nsIMsgMailViewList
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMSGMAILVIEWLIST
+
+  nsMsgMailViewList();
+
+protected:
+  virtual ~nsMsgMailViewList();
+  nsresult LoadMailViews(); // reads in user defined mail views from our default file
+  nsresult ConvertFilterListToMailViews();
+  nsresult ConvertMailViewListToFilterList();
+
+  nsCOMArray<nsIMsgMailView> m_mailViews;
+  nsCOMPtr<nsIMsgFilterList> mFilterList; // our internal filter list representation
+};
+
+#endif
diff --git a/mailnews/extensions/mailviews/src/nsMsgMailViewsCID.h b/mailnews/extensions/mailviews/src/nsMsgMailViewsCID.h
new file mode 100644
index 000000000..9487e5f4c
--- /dev/null
+++ b/mailnews/extensions/mailviews/src/nsMsgMailViewsCID.h
@@ -0,0 +1,17 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsMsgMailViewsCID_h__
+#define nsMsgMailViewsCID_h__
+
+#define NS_MSGMAILVIEWLIST_CONTRACTID \
+  "@mozilla.org/messenger/mailviewlist;1"
+
+#define NS_MSGMAILVIEWLIST_CID                    \
+{ /* A0258267-44FD-4886-A858-8192615178EC */      \
+ 0xa0258267, 0x44fd, 0x4886,                     \
+ { 0xa8, 0x58, 0x81, 0x92, 0x61, 0x51, 0x78, 0xec }}
+
+#endif /* nsMsgMailViewsCID_h__*/
diff --git a/mailnews/extensions/mdn/content/am-mdn.js b/mailnews/extensions/mdn/content/am-mdn.js
new file mode 100644
index 000000000..4dd9e8d8d
--- /dev/null
+++ b/mailnews/extensions/mdn/content/am-mdn.js
@@ -0,0 +1,155 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var useCustomPrefs;
+var requestReceipt;
+var leaveInInbox;
+var moveToSent;
+var receiptSend;
+var neverReturn;
+var returnSome;
+var notInToCcPref;
+var notInToCcLabel;
+var outsideDomainPref;
+var outsideDomainLabel;
+var otherCasesPref;
+var otherCasesLabel;
+var receiptArriveLabel;
+var receiptRequestLabel;
+var gIdentity;
+var gIncomingServer;
+var gMdnPrefBranch;
+
+function onInit() 
+{
+  useCustomPrefs = document.getElementById("identity.use_custom_prefs");
+  requestReceipt = document.getElementById("identity.request_return_receipt_on");
+  leaveInInbox = document.getElementById("leave_in_inbox");
+  moveToSent = document.getElementById("move_to_sent");
+  receiptSend = document.getElementById("server.mdn_report_enabled");
+  neverReturn = document.getElementById("never_return");
+  returnSome = document.getElementById("return_some");
+  notInToCcPref = document.getElementById("server.mdn_not_in_to_cc");
+  notInToCcLabel = document.getElementById("notInToCcLabel");
+  outsideDomainPref = document.getElementById("server.mdn_outside_domain");
+  outsideDomainLabel = document.getElementById("outsideDomainLabel");
+  otherCasesPref = document.getElementById("server.mdn_other");
+  otherCasesLabel = document.getElementById("otherCasesLabel");
+  receiptArriveLabel = document.getElementById("receiptArriveLabel");
+  receiptRequestLabel = document.getElementById("receiptRequestLabel");
+  
+  EnableDisableCustomSettings();
+        
+  return true;
+}
+
+function onSave()
+{
+
+}
+
+function EnableDisableCustomSettings() {
+  if (useCustomPrefs && (useCustomPrefs.getAttribute("value") == "false")) {
+    requestReceipt.setAttribute("disabled", "true");
+    leaveInInbox.setAttribute("disabled", "true");
+    moveToSent.setAttribute("disabled", "true");
+    neverReturn.setAttribute("disabled", "true");
+    returnSome.setAttribute("disabled", "true");
+    receiptArriveLabel.setAttribute("disabled", "true");
+    receiptRequestLabel.setAttribute("disabled", "true");
+  }
+  else {
+    requestReceipt.removeAttribute("disabled");
+    leaveInInbox.removeAttribute("disabled");
+    moveToSent.removeAttribute("disabled");
+    neverReturn.removeAttribute("disabled");
+    returnSome.removeAttribute("disabled");
+    receiptArriveLabel.removeAttribute("disabled");
+    receiptRequestLabel.removeAttribute("disabled");
+  }
+  EnableDisableAllowedReceipts();
+  // Lock id based prefs
+  onLockPreference("mail.identity", gIdentity.key);
+  // Lock server based prefs
+  onLockPreference("mail.server", gIncomingServer.key);
+  return true;
+}
+
+function EnableDisableAllowedReceipts() {
+  if (receiptSend) {
+    if (!neverReturn.getAttribute("disabled") && (receiptSend.getAttribute("value") != "false")) {
+      notInToCcPref.removeAttribute("disabled");
+      notInToCcLabel.removeAttribute("disabled");
+      outsideDomainPref.removeAttribute("disabled");
+      outsideDomainLabel.removeAttribute("disabled");
+      otherCasesPref.removeAttribute("disabled");
+      otherCasesLabel.removeAttribute("disabled");
+    }
+    else {
+      notInToCcPref.setAttribute("disabled", "true");
+      notInToCcLabel.setAttribute("disabled", "true");
+      outsideDomainPref.setAttribute("disabled", "true");
+      outsideDomainLabel.setAttribute("disabled", "true");
+      otherCasesPref.setAttribute("disabled", "true");
+      otherCasesLabel.setAttribute("disabled", "true");
+    }
+  }
+  return true;
+}
+
+function onPreInit(account, accountValues)
+{
+  gIdentity = account.defaultIdentity;
+  gIncomingServer = account.incomingServer;
+}
+
+// Disables xul elements that have associated preferences locked.
+function onLockPreference(initPrefString, keyString)
+{
+    var finalPrefString; 
+
+    var allPrefElements = [
+      { prefstring:"request_return_receipt_on", id:"identity.request_return_receipt_on"},
+      { prefstring:"select_custom_prefs", id:"identity.select_custom_prefs"},
+      { prefstring:"select_global_prefs", id:"identity.select_global_prefs"},
+      { prefstring:"incorporate_return_receipt", id:"server.incorporate_return_receipt"},
+      { prefstring:"never_return", id:"never_return"},
+      { prefstring:"return_some", id:"return_some"},
+      { prefstring:"mdn_not_in_to_cc", id:"server.mdn_not_in_to_cc"},
+      { prefstring:"mdn_outside_domain", id:"server.mdn_outside_domain"},
+      { prefstring:"mdn_other", id:"server.mdn_other"},
+    ];
+
+    finalPrefString = initPrefString + "." + keyString + ".";
+    gMdnPrefBranch = Services.prefs.getBranch(finalPrefString);
+
+    disableIfLocked( allPrefElements );
+} 
+
+function disableIfLocked( prefstrArray )
+{
+  for (var i=0; i<prefstrArray.length; i++) {
+    var id = prefstrArray[i].id;
+    var element = document.getElementById(id);
+    if (gMdnPrefBranch.prefIsLocked(prefstrArray[i].prefstring)) {
+      if (id == "server.incorporate_return_receipt")
+      {
+        document.getElementById("leave_in_inbox").setAttribute("disabled", "true");
+        document.getElementById("move_to_sent").setAttribute("disabled", "true");
+      }
+      else
+        element.setAttribute("disabled", "true");
+    }
+  }
+}
+
+/**
+ * Opens Preferences (Options) dialog on the pane and tab where
+ * the global receipts settings can be found.
+ */
+function showGlobalReceipts() {
+  openPrefsFromAccountManager("paneAdvanced", "generalTab",
+                              {subdialog: "showReturnReceipts"}, "receipts_pane");
+}
diff --git a/mailnews/extensions/mdn/content/am-mdn.xul b/mailnews/extensions/mdn/content/am-mdn.xul
new file mode 100644
index 000000000..c290752ab
--- /dev/null
+++ b/mailnews/extensions/mdn/content/am-mdn.xul
@@ -0,0 +1,136 @@
+<?xml version="1.0"?>
+
+<!--
+
+ This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css" type="text/css"?>
+
+<!DOCTYPE page SYSTEM "chrome://messenger/locale/am-mdn.dtd">
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+      title="&pane.title;"
+      onload="parent.onPanelLoaded('am-mdn.xul');">
+
+  <vbox flex="1" style="overflow: auto;">
+    <stringbundle id="bundle_smime" src="chrome://messenger/locale/am-mdn.properties"/>
+    <script type="application/javascript" src="chrome://messenger/content/AccountManager.js"/>
+    <script type="application/javascript" src="chrome://messenger/content/amUtils.js"/>
+    <script type="application/javascript" src="chrome://messenger/content/am-mdn.js"/>
+
+    <dialogheader title="&pane.title;"/>
+
+    <groupbox>
+
+      <caption label="&pane.title;"/>
+
+      <hbox id="prefChoices" align="center" flex="1">
+        <radiogroup id="identity.use_custom_prefs" wsm_persist="true" genericattr="true"
+                    preftype="bool" prefstring="mail.identity.%identitykey%.use_custom_prefs"
+                    oncommand="EnableDisableCustomSettings();" flex="1">
+          <radio id="identity.select_global_prefs"
+                 value="false"
+                 label="&useGlobalPrefs.label;"
+                 accesskey="&useGlobalPrefs.accesskey;"/>
+          <hbox flex="1">
+            <spacer flex="1"/>
+            <button id="globalReceiptsLink"
+                    label="&globalReceipts.label;"
+                    accesskey="&globalReceipts.accesskey;"
+                    oncommand="showGlobalReceipts();"/>
+          </hbox>
+          <radio id="identity.select_custom_prefs"
+                 value="true"
+                 label="&useCustomPrefs.label;"
+                 accesskey="&useCustomPrefs.accesskey;"/>
+        </radiogroup>
+      </hbox>
+
+      <vbox id="returnReceiptSettings" class="indent" align="start">
+        <checkbox id="identity.request_return_receipt_on" label="&requestReceipt.label;"
+                  accesskey="&requestReceipt.accesskey;"
+                  wsm_persist="true" genericattr="true" iscontrolcontainer="true"
+                  preftype="bool" prefstring="mail.identity.%identitykey%.request_return_receipt_on"/>
+
+        <separator/>
+
+        <vbox id="receiptArrive">
+          <label id="receiptArriveLabel" control="server.incorporate_return_receipt">&receiptArrive.label;</label>
+          <radiogroup id="server.incorporate_return_receipt" wsm_persist="true" genericattr="true"
+                      preftype="int" prefstring="mail.server.%serverkey%.incorporate_return_receipt"
+                      class="indent">
+            <radio id="leave_in_inbox" value="0" label="&leaveIt.label;"
+                   accesskey="&leaveIt.accesskey;"/>
+            <radio id="move_to_sent" value="1" label="&moveToSent.label;"
+                   accesskey="&moveToSent.accesskey;"/>
+          </radiogroup>
+        </vbox>
+
+        <separator/>
+
+        <vbox id="receiptRequest">
+          <label id="receiptRequestLabel" control="server.mdn_report_enabled">&requestMDN.label;</label>
+          <radiogroup id="server.mdn_report_enabled" wsm_persist="true" genericattr="true"
+                      preftype="bool" prefstring="mail.server.%serverkey%.mdn_report_enabled"
+                      oncommand="EnableDisableAllowedReceipts();"
+                      class="indent">
+            <radio id="never_return" value="false" label="&never.label;"
+                   accesskey="&never.accesskey;"/>
+            <radio id="return_some" value="true" label="&returnSome.label;"
+                   accesskey="&returnSome.accesskey;"/>
+
+            <hbox id="receiptSendIf" class="indent">
+            <grid>
+              <columns><column/><column/></columns>
+              <rows>
+                <row align="center">
+                  <label id="notInToCcLabel" value="&notInToCc.label;"
+                         accesskey="&notInToCc.accesskey;" control="server.mdn_not_in_to_cc"/>
+                  <menulist id="server.mdn_not_in_to_cc" wsm_persist="true" genericattr="true"
+                            preftype="int" prefstring="mail.server.%serverkey%.mdn_not_in_to_cc">
+                    <menupopup>
+                      <menuitem value="0" label="&neverSend.label;"/>
+                      <menuitem value="1" label="&alwaysSend.label;"/>
+                      <menuitem value="2" label="&askMe.label;"/>
+                    </menupopup>
+                  </menulist>
+                </row>
+                <row align="center">
+                  <label id="outsideDomainLabel" value="&outsideDomain.label;"
+                         accesskey="&outsideDomain.accesskey;" control="server.mdn_outside_domain"/>
+                  <menulist id="server.mdn_outside_domain" wsm_persist="true" genericattr="true"
+                            preftype="int" prefstring="mail.server.%serverkey%.mdn_outside_domain">
+                    <menupopup>
+                      <menuitem value="0" label="&neverSend.label;"/>
+                      <menuitem value="1" label="&alwaysSend.label;"/>
+                      <menuitem value="2" label="&askMe.label;"/>
+                    </menupopup>
+                  </menulist>
+                </row>
+                <row align="center">
+                  <label id="otherCasesLabel" value="&otherCases.label;"
+                         accesskey="&otherCases.accesskey;" control="server.mdn_other"/>
+                  <menulist id="server.mdn_other" wsm_persist="true" genericattr="true"
+                            preftype="int" prefstring="mail.server.%serverkey%.mdn_other">
+                    <menupopup>
+                      <menuitem value="0" label="&neverSend.label;"/>
+                      <menuitem value="1" label="&alwaysSend.label;"/>
+                      <menuitem value="2" label="&askMe.label;"/>
+                    </menupopup>
+                  </menulist>
+                </row>
+              </rows>
+            </grid>
+            </hbox>
+          </radiogroup>
+
+        </vbox>
+
+      </vbox>
+
+    </groupbox>
+  </vbox>
+
+</page>
diff --git a/mailnews/extensions/mdn/content/mdn.js b/mailnews/extensions/mdn/content/mdn.js
new file mode 100644
index 000000000..9ac481573
--- /dev/null
+++ b/mailnews/extensions/mdn/content/mdn.js
@@ -0,0 +1,23 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * default prefs for mdn
+ */
+
+pref("mail.identity.default.use_custom_prefs", false);            // false: Use global true: Use custom
+
+pref("mail.identity.default.request_return_receipt_on", false);
+
+pref("mail.server.default.incorporate_return_receipt", 0);       // 0: Inbox/filter 1: Sent folder
+
+pref("mail.server.default.mdn_report_enabled", true);            // false: Never return receipts true: Return some receipts
+
+pref("mail.server.default.mdn_not_in_to_cc", 2);                 // 0: Never 1: Always 2: Ask me 3: Denial
+pref("mail.server.default.mdn_outside_domain", 2); 
+pref("mail.server.default.mdn_other", 2); 
+
+pref("mail.identity.default.request_receipt_header_type", 0); // return receipt header type - 0: MDN-DNT 1: RRT 2: Both
+
+pref("mail.server.default.mdn_report_enabled", true);
diff --git a/mailnews/extensions/mdn/jar.mn b/mailnews/extensions/mdn/jar.mn
new file mode 100644
index 000000000..74fde6b60
--- /dev/null
+++ b/mailnews/extensions/mdn/jar.mn
@@ -0,0 +1,7 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+messenger.jar:
+    content/messenger/am-mdn.xul                                     (content/am-mdn.xul)
+    content/messenger/am-mdn.js                                      (content/am-mdn.js)
diff --git a/mailnews/extensions/mdn/moz.build b/mailnews/extensions/mdn/moz.build
new file mode 100644
index 000000000..5aaa32895
--- /dev/null
+++ b/mailnews/extensions/mdn/moz.build
@@ -0,0 +1,12 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += ['src']
+
+JAR_MANIFESTS += ['jar.mn']
+
+JS_PREFERENCE_FILES += [
+    'content/mdn.js',
+]
diff --git a/mailnews/extensions/mdn/src/mdn-service.js b/mailnews/extensions/mdn/src/mdn-service.js
new file mode 100644
index 000000000..32e1cbde1
--- /dev/null
+++ b/mailnews/extensions/mdn/src/mdn-service.js
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+function MDNService() {}
+
+MDNService.prototype = {
+  name: "mdn",
+  chromePackageName: "messenger",
+  showPanel: function(server) {
+    // don't show the panel for news, rss, im or local accounts
+    return (server.type != "nntp" && server.type != "rss" &&
+            server.type != "im" && server.type != "none");
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIMsgAccountManagerExtension]),
+  classID: Components.ID("{e007d92e-1dd1-11b2-a61e-dc962c9b8571}"),
+};
+
+var components = [MDNService];
+var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/mailnews/extensions/mdn/src/mdn-service.manifest b/mailnews/extensions/mdn/src/mdn-service.manifest
new file mode 100644
index 000000000..493a3c69b
--- /dev/null
+++ b/mailnews/extensions/mdn/src/mdn-service.manifest
@@ -0,0 +1,3 @@
+component {e007d92e-1dd1-11b2-a61e-dc962c9b8571} mdn-service.js
+contract @mozilla.org/accountmanager/extension;1?name=mdn {e007d92e-1dd1-11b2-a61e-dc962c9b8571}
+category mailnews-accountmanager-extensions mdn-account-manager-extension @mozilla.org/accountmanager/extension;1?name=mdn
diff --git a/mailnews/extensions/mdn/src/moz.build b/mailnews/extensions/mdn/src/moz.build
new file mode 100644
index 000000000..1aef9b208
--- /dev/null
+++ b/mailnews/extensions/mdn/src/moz.build
@@ -0,0 +1,16 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+    'nsMsgMdnGenerator.cpp',
+]
+
+EXTRA_COMPONENTS += [
+    'mdn-service.js',
+    'mdn-service.manifest',
+]
+
+FINAL_LIBRARY = 'mail'
+
diff --git a/mailnews/extensions/mdn/src/nsMsgMdnCID.h b/mailnews/extensions/mdn/src/nsMsgMdnCID.h
new file mode 100644
index 000000000..4dd832b7f
--- /dev/null
+++ b/mailnews/extensions/mdn/src/nsMsgMdnCID.h
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsMsgMdnCID_h__
+#define nsMsgMdnCID_h__
+
+#include "nsISupports.h"
+#include "nsIFactory.h"
+#include "nsIComponentManager.h"
+
+#include "nsIMsgMdnGenerator.h"
+
+#define NS_MSGMDNGENERATOR_CONTRACTID \
+  "@mozilla.org/messenger-mdn/generator;1"
+#define NS_MSGMDNGENERATOR_CID                    \
+{ /* ec917b13-8f73-4d4d-9146-d7f7aafe9076 */      \
+ 0xec917b13, 0x8f73, 0x4d4d,                      \
+ { 0x91, 0x46, 0xd7, 0xf7, 0xaa, 0xfe, 0x90, 0x76 }}
+
+#endif /* nsMsgMdnCID_h__ */
diff --git a/mailnews/extensions/mdn/src/nsMsgMdnGenerator.cpp b/mailnews/extensions/mdn/src/nsMsgMdnGenerator.cpp
new file mode 100644
index 000000000..31b55fe2f
--- /dev/null
+++ b/mailnews/extensions/mdn/src/nsMsgMdnGenerator.cpp
@@ -0,0 +1,1139 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsMsgMdnGenerator.h"
+#include "nsImapCore.h"
+#include "nsIMsgImapMailFolder.h"
+#include "nsIMsgAccountManager.h"
+#include "nsMsgBaseCID.h"
+#include "nsMimeTypes.h"
+#include "prprf.h"
+#include "prmem.h"
+#include "prsystem.h"
+#include "nsMsgI18N.h"
+#include "nsMailHeaders.h"
+#include "nsMsgLocalFolderHdrs.h"
+#include "nsIHttpProtocolHandler.h"
+#include "nsISmtpService.h"  // for actually sending the message...
+#include "nsMsgCompCID.h"
+#include "nsComposeStrings.h"
+#include "nsISmtpServer.h"
+#include "nsIPrompt.h"
+#include "nsIMsgCompUtils.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsIStringBundle.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsMsgUtils.h"
+#include "nsNetUtil.h"
+#include "nsIMsgDatabase.h"
+#include "mozilla/Services.h"
+#include "nsIArray.h"
+#include "nsArrayUtils.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+
+using namespace mozilla::mailnews;
+
+#define MDN_NOT_IN_TO_CC          ((int) 0x0001)
+#define MDN_OUTSIDE_DOMAIN        ((int) 0x0002)
+
+#define HEADER_RETURN_PATH          "Return-Path"
+#define HEADER_DISPOSITION_NOTIFICATION_TO  "Disposition-Notification-To"
+#define HEADER_APPARENTLY_TO        "Apparently-To"
+#define HEADER_ORIGINAL_RECIPIENT     "Original-Recipient"
+#define HEADER_REPORTING_UA                 "Reporting-UA"
+#define HEADER_MDN_GATEWAY                  "MDN-Gateway"
+#define HEADER_FINAL_RECIPIENT              "Final-Recipient"
+#define HEADER_DISPOSITION                  "Disposition"
+#define HEADER_ORIGINAL_MESSAGE_ID          "Original-Message-ID"
+#define HEADER_FAILURE                      "Failure"
+#define HEADER_ERROR                        "Error"
+#define HEADER_WARNING                      "Warning"
+#define HEADER_RETURN_RECEIPT_TO            "Return-Receipt-To"
+#define HEADER_X_ACCEPT_LANGUAGE      "X-Accept-Language"
+
+#define PUSH_N_FREE_STRING(p) \
+  do { if (p) { rv = WriteString(p); PR_smprintf_free(p); p=0; \
+           if (NS_FAILED(rv)) return rv; } \
+     else { return NS_ERROR_OUT_OF_MEMORY; } } while (0)
+
+// String bundle for mdn. Class static.
+#define MDN_STRINGBUNDLE_URL "chrome://messenger/locale/msgmdn.properties"
+
+#if defined(DEBUG_jefft)
+#define DEBUG_MDN(s) printf("%s\n", s)
+#else
+#define DEBUG_MDN(s)
+#endif
+
+// machine parsible string; should not be localized
+char DispositionTypes[7][16] = {
+    "displayed",
+    "dispatched",
+    "processed",
+    "deleted",
+    "denied",
+    "failed",
+    ""
+};
+
+NS_IMPL_ISUPPORTS(nsMsgMdnGenerator, nsIMsgMdnGenerator, nsIUrlListener)
+
+nsMsgMdnGenerator::nsMsgMdnGenerator()
+{
+    m_disposeType = eDisplayed;
+    m_outputStream = nullptr;
+    m_reallySendMdn = false;
+    m_autoSend = false;
+    m_autoAction = false;
+    m_mdnEnabled = false;
+    m_notInToCcOp = eNeverSendOp;
+    m_outsideDomainOp = eNeverSendOp;
+    m_otherOp = eNeverSendOp;
+}
+
+nsMsgMdnGenerator::~nsMsgMdnGenerator()
+{
+}
+
+nsresult nsMsgMdnGenerator::FormatStringFromName(const char16_t *aName,
+                                                 const char16_t *aString,
+                                                 char16_t **aResultString)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::FormatStringFromName");
+
+    nsCOMPtr<nsIStringBundleService> bundleService =
+      mozilla::services::GetStringBundleService();
+    NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+
+    nsCOMPtr <nsIStringBundle> bundle;
+    nsresult rv = bundleService->CreateBundle(MDN_STRINGBUNDLE_URL,
+                                              getter_AddRefs(bundle));
+    NS_ENSURE_SUCCESS(rv,rv);
+
+    const char16_t *formatStrings[1] = { aString };
+    rv = bundle->FormatStringFromName(aName,
+                    formatStrings, 1, aResultString);
+    NS_ENSURE_SUCCESS(rv,rv);
+    return rv;
+}
+
+nsresult nsMsgMdnGenerator::GetStringFromName(const char16_t *aName,
+                                               char16_t **aResultString)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::GetStringFromName");
+
+    nsCOMPtr<nsIStringBundleService> bundleService =
+      mozilla::services::GetStringBundleService();
+    NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+
+    nsCOMPtr <nsIStringBundle> bundle;
+    nsresult rv = bundleService->CreateBundle(MDN_STRINGBUNDLE_URL,
+                                              getter_AddRefs(bundle));
+    NS_ENSURE_SUCCESS(rv,rv);
+
+    rv = bundle->GetStringFromName(aName, aResultString);
+    NS_ENSURE_SUCCESS(rv,rv);
+    return rv;
+}
+
+nsresult nsMsgMdnGenerator::StoreMDNSentFlag(nsIMsgFolder *folder,
+                                             nsMsgKey key)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::StoreMDNSentFlag");
+
+    nsCOMPtr<nsIMsgDatabase> msgDB;
+    nsresult rv = folder->GetMsgDatabase(getter_AddRefs(msgDB));
+    NS_ENSURE_SUCCESS(rv, rv);
+    rv = msgDB->MarkMDNSent(key, true, nullptr);
+
+    nsCOMPtr<nsIMsgImapMailFolder> imapFolder = do_QueryInterface(folder);
+    // Store the $MDNSent flag if the folder is an Imap Mail Folder
+    if (imapFolder)
+      return imapFolder->StoreImapFlags(kImapMsgMDNSentFlag, true, &key, 1, nullptr);
+    return rv;
+}
+
+nsresult nsMsgMdnGenerator::ClearMDNNeededFlag(nsIMsgFolder *folder,
+                                               nsMsgKey key)
+{
+  DEBUG_MDN("nsMsgMdnGenerator::ClearMDNNeededFlag");
+
+  nsCOMPtr<nsIMsgDatabase> msgDB;
+  nsresult rv = folder->GetMsgDatabase(getter_AddRefs(msgDB));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return msgDB->MarkMDNNeeded(key, false, nullptr);
+}
+
+bool nsMsgMdnGenerator::ProcessSendMode()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::ProcessSendMode");
+    int32_t miscState = 0;
+
+    if (m_identity)
+    {
+        m_identity->GetEmail(m_email);
+        if (m_email.IsEmpty())
+            return m_reallySendMdn;
+
+        const char *accountDomain = strchr(m_email.get(), '@');
+        if (!accountDomain)
+            return m_reallySendMdn;
+
+        if (MailAddrMatch(m_email.get(), m_dntRrt.get())) // return address is self, don't send
+          return false;
+
+        // *** fix me see Bug 132504 for more information
+        // *** what if the message has been filtered to different account
+        if (!PL_strcasestr(m_dntRrt.get(), accountDomain))
+            miscState |= MDN_OUTSIDE_DOMAIN;
+        if (NotInToOrCc())
+            miscState |= MDN_NOT_IN_TO_CC;
+        m_reallySendMdn = true;
+        // *********
+        // How are we gona deal with the auto forwarding issues? Some server
+        // didn't bother to add addition header or modify existing header to
+        // thev message when forwarding. They simply copy the exact same
+        // message to another user's mailbox. Some change To: to
+        // Apparently-To:
+        // Unfortunately, there is nothing we can do. It's out of our control.
+        // *********
+        // starting from lowest denominator to highest
+        if (!miscState)
+        {   // under normal situation: recipent is in to and cc list,
+            // and the sender is from the same domain
+            switch (m_otherOp)
+            {
+            default:
+            case eNeverSendOp:
+                m_reallySendMdn = false;
+                break;
+            case eAutoSendOp:
+                m_autoSend = true;
+                break;
+            case eAskMeOp:
+                m_autoSend = false;
+                break;
+            case eDeniedOp:
+                m_autoSend = true;
+                m_disposeType = eDenied;
+                break;
+            }
+        }
+        else if (miscState == (MDN_OUTSIDE_DOMAIN | MDN_NOT_IN_TO_CC))
+        {
+            if (m_outsideDomainOp != m_notInToCcOp)
+            {
+                m_autoSend = false; // ambiguous; always ask user
+            }
+            else
+            {
+                switch (m_outsideDomainOp)
+                {
+                default:
+                case eNeverSendOp:
+                    m_reallySendMdn = false;
+                    break;
+                case eAutoSendOp:
+                    m_autoSend = true;
+                    break;
+                case eAskMeOp:
+                    m_autoSend = false;
+                    break;
+                }
+            }
+        }
+        else if (miscState & MDN_OUTSIDE_DOMAIN)
+        {
+            switch (m_outsideDomainOp)
+            {
+            default:
+            case eNeverSendOp:
+                m_reallySendMdn = false;
+                break;
+            case eAutoSendOp:
+                m_autoSend = true;
+                break;
+            case eAskMeOp:
+                m_autoSend = false;
+                break;
+            }
+        }
+        else if (miscState & MDN_NOT_IN_TO_CC)
+        {
+            switch (m_notInToCcOp)
+            {
+            default:
+            case eNeverSendOp:
+                m_reallySendMdn = false;
+                break;
+            case eAutoSendOp:
+                m_autoSend = true;
+                break;
+            case eAskMeOp:
+                m_autoSend = false;
+                break;
+            }
+        }
+    }
+    return m_reallySendMdn;
+}
+
+bool nsMsgMdnGenerator::MailAddrMatch(const char *addr1, const char *addr2)
+{
+    // Comparing two email addresses returns true if matched; local/account
+    // part comparison is case sensitive; domain part comparison is case
+    // insensitive
+    DEBUG_MDN("nsMsgMdnGenerator::MailAddrMatch");
+    bool isMatched = true;
+    const char *atSign1 = nullptr, *atSign2 = nullptr;
+    const char *lt = nullptr, *local1 = nullptr, *local2 = nullptr;
+    const char *end1 = nullptr, *end2 = nullptr;
+
+    if (!addr1 || !addr2)
+        return false;
+
+    lt = strchr(addr1, '<');
+    local1 = !lt ? addr1 : lt+1;
+    lt = strchr(addr2, '<');
+    local2 = !lt ? addr2 : lt+1;
+    end1 = strchr(local1, '>');
+    if (!end1)
+        end1 = addr1 + strlen(addr1);
+    end2 = strchr(local2, '>');
+    if (!end2)
+        end2 = addr2 + strlen(addr2);
+    atSign1 = strchr(local1, '@');
+    atSign2 = strchr(local2, '@');
+    if (!atSign1 || !atSign2 // ill formed addr spec
+        || (atSign1 - local1) != (atSign2 - local2))
+        isMatched = false;
+    else if (strncmp(local1, local2, (atSign1-local1))) // case sensitive
+        // compare for local part
+        isMatched = false;
+    else if ((end1 - atSign1) != (end2 - atSign2) ||
+             PL_strncasecmp(atSign1, atSign2, (end1-atSign1))) // case
+        // insensitive compare for domain part
+        isMatched = false;
+    return isMatched;
+}
+
+bool nsMsgMdnGenerator::NotInToOrCc()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::NotInToOrCc");
+    nsCString reply_to;
+    nsCString to;
+    nsCString cc;
+
+    m_identity->GetReplyTo(reply_to);
+    m_headers->ExtractHeader(HEADER_TO, true, to);
+    m_headers->ExtractHeader(HEADER_CC, true, cc);
+
+  // start with a simple check
+  if ((!to.IsEmpty() && PL_strcasestr(to.get(), m_email.get())) ||
+      (!cc.IsEmpty() && PL_strcasestr(cc.get(), m_email.get()))) {
+      return false;
+  }
+
+  if ((!reply_to.IsEmpty() && !to.IsEmpty() && PL_strcasestr(to.get(), reply_to.get())) ||
+      (!reply_to.IsEmpty() && !cc.IsEmpty() && PL_strcasestr(cc.get(), reply_to.get()))) {
+      return false;
+  }
+  return true;
+}
+
+bool nsMsgMdnGenerator::ValidateReturnPath()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::ValidateReturnPath");
+    // ValidateReturnPath applies to Automatic Send Mode only. If we were not
+    // in auto send mode we simply by passing the check
+    if (!m_autoSend)
+        return m_reallySendMdn;
+
+    nsCString returnPath;
+    m_headers->ExtractHeader(HEADER_RETURN_PATH, false, returnPath);
+    if (returnPath.IsEmpty())
+    {
+      m_autoSend = false;
+      return m_reallySendMdn;
+    }
+    m_autoSend = MailAddrMatch(returnPath.get(), m_dntRrt.get());
+    return m_reallySendMdn;
+}
+
+nsresult nsMsgMdnGenerator::CreateMdnMsg()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::CreateMdnMsg");
+    nsresult rv;
+
+    nsCOMPtr<nsIFile> tmpFile;
+    rv = GetSpecialDirectoryWithFileName(NS_OS_TEMP_DIR,
+                                         "mdnmsg",
+                                         getter_AddRefs(m_file));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = m_file->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 00600);
+    NS_ENSURE_SUCCESS(rv, rv);
+    rv = MsgNewBufferedFileOutputStream(getter_AddRefs(m_outputStream),
+                                        m_file,
+                                        PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE,
+                                        0664);
+    NS_ASSERTION(NS_SUCCEEDED(rv),"creating mdn: failed to output stream");
+    if (NS_FAILED(rv))
+        return NS_OK;
+
+    rv = CreateFirstPart();
+    if (NS_SUCCEEDED(rv))
+    {
+        rv = CreateSecondPart();
+        if (NS_SUCCEEDED(rv))
+            rv = CreateThirdPart();
+    }
+
+    if (m_outputStream)
+    {
+        m_outputStream->Flush();
+        m_outputStream->Close();
+    }
+    if (NS_FAILED(rv))
+        m_file->Remove(false);
+    else
+        rv = SendMdnMsg();
+
+    return NS_OK;
+}
+
+nsresult nsMsgMdnGenerator::CreateFirstPart()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::CreateFirstPart");
+    char *convbuf = nullptr, *tmpBuffer = nullptr;
+    char *parm = nullptr;
+    nsString firstPart1;
+    nsString firstPart2;
+    nsresult rv = NS_OK;
+    nsCOMPtr <nsIMsgCompUtils> compUtils;
+
+    if (m_mimeSeparator.IsEmpty())
+    {
+      compUtils = do_GetService(NS_MSGCOMPUTILS_CONTRACTID, &rv);
+      NS_ENSURE_SUCCESS(rv, rv);
+      rv = compUtils->MimeMakeSeparator("mdn", getter_Copies(m_mimeSeparator));
+      NS_ENSURE_SUCCESS(rv, rv);
+    }
+    if (m_mimeSeparator.IsEmpty())
+      return NS_ERROR_OUT_OF_MEMORY;
+
+    tmpBuffer = (char *) PR_CALLOC(256);
+
+    if (!tmpBuffer)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    PRExplodedTime now;
+    PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &now);
+
+    int gmtoffset = (now.tm_params.tp_gmt_offset + now.tm_params.tp_dst_offset)
+        / 60;
+  /* Use PR_FormatTimeUSEnglish() to format the date in US English format,
+     then figure out what our local GMT offset is, and append it (since
+     PR_FormatTimeUSEnglish() can't do that.) Generate four digit years as
+     per RFC 1123 (superceding RFC 822.)
+  */
+    PR_FormatTimeUSEnglish(tmpBuffer, 100,
+                           "Date: %a, %d %b %Y %H:%M:%S ",
+                           &now);
+
+    PR_snprintf(tmpBuffer + strlen(tmpBuffer), 100,
+                "%c%02d%02d" CRLF,
+                (gmtoffset >= 0 ? '+' : '-'),
+                ((gmtoffset >= 0 ? gmtoffset : -gmtoffset) / 60),
+                ((gmtoffset >= 0 ? gmtoffset : -gmtoffset) % 60));
+
+    rv = WriteString(tmpBuffer);
+    PR_Free(tmpBuffer);
+    if (NS_FAILED(rv))
+        return rv;
+
+    bool conformToStandard = false;
+    if (compUtils)
+      compUtils->GetMsgMimeConformToStandard(&conformToStandard);
+
+    nsString fullName;
+    m_identity->GetFullName(fullName);
+
+    nsCString fullAddress;
+    // convert fullName to UTF8 before passing it to MakeMimeAddress
+    MakeMimeAddress(NS_ConvertUTF16toUTF8(fullName), m_email, fullAddress);
+
+    convbuf = nsMsgI18NEncodeMimePartIIStr(fullAddress.get(),
+        true, m_charset.get(), 0, conformToStandard);
+
+    parm = PR_smprintf("From: %s" CRLF, convbuf ? convbuf : m_email.get());
+
+    rv = FormatStringFromName(u"MsgMdnMsgSentTo", NS_ConvertASCIItoUTF16(m_email).get(),
+                            getter_Copies(firstPart1));
+    if (NS_FAILED(rv))
+        return rv;
+
+    PUSH_N_FREE_STRING (parm);
+
+    PR_Free(convbuf);
+
+    if (compUtils)
+    {
+      nsCString msgId;
+      rv = compUtils->MsgGenerateMessageId(m_identity, getter_Copies(msgId));
+      tmpBuffer = PR_smprintf("Message-ID: %s" CRLF, msgId.get());
+      PUSH_N_FREE_STRING(tmpBuffer);
+    }
+
+    nsString receipt_string;
+    switch (m_disposeType)
+    {
+    case nsIMsgMdnGenerator::eDisplayed:
+        rv = GetStringFromName(
+            u"MdnDisplayedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    case nsIMsgMdnGenerator::eDispatched:
+        rv = GetStringFromName(
+            u"MdnDispatchedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    case nsIMsgMdnGenerator::eProcessed:
+        rv = GetStringFromName(
+            u"MdnProcessedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    case nsIMsgMdnGenerator::eDeleted:
+        rv = GetStringFromName(
+            u"MdnDeletedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    case nsIMsgMdnGenerator::eDenied:
+        rv = GetStringFromName(
+            u"MdnDeniedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    case nsIMsgMdnGenerator::eFailed:
+        rv = GetStringFromName(
+            u"MdnFailedReceipt",
+            getter_Copies(receipt_string));
+        break;
+    default:
+        rv = NS_ERROR_INVALID_ARG;
+        break;
+    }
+
+    if (NS_FAILED(rv))
+        return rv;
+
+    receipt_string.AppendLiteral(" - ");
+
+    char * encodedReceiptString = nsMsgI18NEncodeMimePartIIStr(NS_ConvertUTF16toUTF8(receipt_string).get(), false,
+                                                               "UTF-8", 0, conformToStandard);
+
+    nsCString subject;
+    m_headers->ExtractHeader(HEADER_SUBJECT, false, subject);
+    convbuf = nsMsgI18NEncodeMimePartIIStr(subject.Length() ? subject.get() : "[no subject]",
+                                           false, m_charset.get(), 0, conformToStandard);
+    tmpBuffer = PR_smprintf("Subject: %s%s" CRLF,
+                             encodedReceiptString,
+                            (convbuf ? convbuf : (subject.Length() ? subject.get() :
+                              "[no subject]")));
+
+    PUSH_N_FREE_STRING(tmpBuffer);
+    PR_Free(convbuf);
+    PR_Free(encodedReceiptString);
+
+    convbuf = nsMsgI18NEncodeMimePartIIStr(m_dntRrt.get(), true, m_charset.get(), 0, conformToStandard);
+    tmpBuffer = PR_smprintf("To: %s" CRLF, convbuf ? convbuf :
+                            m_dntRrt.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    PR_Free(convbuf);
+
+  // *** This is not in the spec. I am adding this so we could do
+  // threading
+    m_headers->ExtractHeader(HEADER_MESSAGE_ID, false, m_messageId);
+
+    if (!m_messageId.IsEmpty())
+    {
+      if (*m_messageId.get() == '<')
+          tmpBuffer = PR_smprintf("References: %s" CRLF, m_messageId.get());
+      else
+          tmpBuffer = PR_smprintf("References: <%s>" CRLF, m_messageId.get());
+      PUSH_N_FREE_STRING(tmpBuffer);
+    }
+    tmpBuffer = PR_smprintf("%s" CRLF, "MIME-Version: 1.0");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("Content-Type: multipart/report; \
+report-type=disposition-notification;\r\n\tboundary=\"%s\"" CRLF CRLF,
+                            m_mimeSeparator.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("--%s" CRLF, m_mimeSeparator.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("Content-Type: text/plain; charset=UTF-8" CRLF);
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("Content-Transfer-Encoding: %s" CRLF CRLF,
+                            ENCODING_8BIT);
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    if (!firstPart1.IsEmpty())
+    {
+        tmpBuffer = PR_smprintf("%s" CRLF CRLF, NS_ConvertUTF16toUTF8(firstPart1).get());
+        PUSH_N_FREE_STRING(tmpBuffer);
+    }
+
+    switch (m_disposeType)
+    {
+    case nsIMsgMdnGenerator::eDisplayed:
+        rv = GetStringFromName(
+            u"MsgMdnDisplayed",
+            getter_Copies(firstPart2));
+        break;
+    case nsIMsgMdnGenerator::eDispatched:
+        rv = GetStringFromName(
+            u"MsgMdnDispatched",
+            getter_Copies(firstPart2));
+        break;
+    case nsIMsgMdnGenerator::eProcessed:
+        rv = GetStringFromName(
+            u"MsgMdnProcessed",
+            getter_Copies(firstPart2));
+        break;
+    case nsIMsgMdnGenerator::eDeleted:
+        rv = GetStringFromName(
+            u"MsgMdnDeleted",
+            getter_Copies(firstPart2));
+        break;
+    case nsIMsgMdnGenerator::eDenied:
+        rv = GetStringFromName(
+            u"MsgMdnDenied",
+            getter_Copies(firstPart2));
+        break;
+    case nsIMsgMdnGenerator::eFailed:
+        rv = GetStringFromName(
+            u"MsgMdnFailed",
+            getter_Copies(firstPart2));
+        break;
+    default:
+        rv = NS_ERROR_INVALID_ARG;
+        break;
+    }
+
+    if (NS_FAILED(rv))
+        return rv;
+
+    if (!firstPart2.IsEmpty())
+    {
+        tmpBuffer =
+            PR_smprintf("%s" CRLF CRLF,
+                        NS_ConvertUTF16toUTF8(firstPart2).get());
+        PUSH_N_FREE_STRING(tmpBuffer);
+    }
+
+    return rv;
+}
+
+nsresult nsMsgMdnGenerator::CreateSecondPart()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::CreateSecondPart");
+    char *tmpBuffer = nullptr;
+    char *convbuf = nullptr;
+    nsresult rv = NS_OK;
+    nsCOMPtr <nsIMsgCompUtils> compUtils;
+    bool conformToStandard = false;
+
+    tmpBuffer = PR_smprintf("--%s" CRLF, m_mimeSeparator.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("%s" CRLF, "Content-Type: message/disposition-notification; name=\042MDNPart2.txt\042");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("%s" CRLF, "Content-Disposition: inline");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("Content-Transfer-Encoding: %s" CRLF CRLF,
+                            ENCODING_7BIT);
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    nsCOMPtr<nsIHttpProtocolHandler> pHTTPHandler =
+        do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv);
+    if (NS_SUCCEEDED(rv) && pHTTPHandler)
+    {
+      nsAutoCString userAgentString;
+      pHTTPHandler->GetUserAgent(userAgentString);
+
+      if (!userAgentString.IsEmpty())
+      {
+        // Prepend the product name with the dns name according to RFC 3798.
+        char hostName[256];
+        PR_GetSystemInfo(PR_SI_HOSTNAME_UNTRUNCATED, hostName, sizeof hostName);
+        if ((hostName[0] != '\0') && (strchr(hostName, '.') != NULL))
+        {
+          userAgentString.Insert("; ", 0);
+          userAgentString.Insert(nsDependentCString(hostName), 0);
+        }
+
+        tmpBuffer = PR_smprintf("Reporting-UA: %s" CRLF,
+                                userAgentString.get());
+        PUSH_N_FREE_STRING(tmpBuffer);
+      }
+    }
+
+    nsCString originalRecipient;
+    m_headers->ExtractHeader(HEADER_ORIGINAL_RECIPIENT, false,
+                             originalRecipient);
+
+    if (!originalRecipient.IsEmpty())
+    {
+        tmpBuffer = PR_smprintf("Original-Recipient: %s" CRLF,
+                                originalRecipient.get());
+        PUSH_N_FREE_STRING(tmpBuffer);
+    }
+
+    compUtils = do_GetService(NS_MSGCOMPUTILS_CONTRACTID, &rv);
+    if (compUtils)
+      compUtils->GetMsgMimeConformToStandard(&conformToStandard);
+
+    convbuf = nsMsgI18NEncodeMimePartIIStr(
+        m_email.get(), true, m_charset.get(), 0,
+        conformToStandard);
+    tmpBuffer = PR_smprintf("Final-Recipient: rfc822;%s" CRLF, convbuf ?
+                            convbuf : m_email.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    PR_Free (convbuf);
+
+    if (*m_messageId.get() == '<')
+        tmpBuffer = PR_smprintf("Original-Message-ID: %s" CRLF, m_messageId.get());
+    else
+        tmpBuffer = PR_smprintf("Original-Message-ID: <%s>" CRLF, m_messageId.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("Disposition: %s/%s; %s" CRLF CRLF,
+                            (m_autoAction ? "automatic-action" :
+                             "manual-action"),
+                            (m_autoSend ? "MDN-sent-automatically" :
+                             "MDN-sent-manually"),
+                            DispositionTypes[(int) m_disposeType]);
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    return rv;
+}
+
+nsresult nsMsgMdnGenerator::CreateThirdPart()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::CreateThirdPart");
+    char *tmpBuffer = nullptr;
+    nsresult rv = NS_OK;
+
+    tmpBuffer = PR_smprintf("--%s" CRLF, m_mimeSeparator.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("%s" CRLF, "Content-Type: text/rfc822-headers; name=\042MDNPart3.txt\042");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("%s" CRLF, "Content-Transfer-Encoding: 7bit");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    tmpBuffer = PR_smprintf("%s" CRLF CRLF, "Content-Disposition: inline");
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    rv = OutputAllHeaders();
+
+    if (NS_FAILED(rv))
+        return rv;
+
+    rv = WriteString(CRLF);
+    if (NS_FAILED(rv))
+        return rv;
+
+    tmpBuffer = PR_smprintf("--%s--" CRLF, m_mimeSeparator.get());
+    PUSH_N_FREE_STRING(tmpBuffer);
+
+    return rv;
+}
+
+
+nsresult nsMsgMdnGenerator::OutputAllHeaders()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::OutputAllHeaders");
+    nsCString all_headers;
+    int32_t all_headers_size = 0;
+    nsresult rv = NS_OK;
+
+    rv = m_headers->GetAllHeaders(all_headers);
+    if (NS_FAILED(rv))
+        return rv;
+    all_headers_size = all_headers.Length();
+    char *buf = (char *) all_headers.get(),
+        *buf_end = (char *) all_headers.get()+all_headers_size;
+    char *start = buf, *end = buf;
+
+    while (buf < buf_end)
+    {
+        switch (*buf)
+        {
+        case 0:
+            if (*(buf+1) == '\n')
+            {
+                // *buf = '\r';
+                end = buf;
+            }
+            else if (*(buf+1) == 0)
+            {
+                // the case of message id
+                *buf = '>';
+            }
+            break;
+        case '\r':
+            end = buf;
+            *buf = 0;
+            break;
+        case '\n':
+            if (buf > start && *(buf-1) == 0)
+            {
+                start = buf + 1;
+                end = start;
+            }
+            else
+            {
+                end = buf;
+            }
+            *buf = 0;
+            break;
+        default:
+            break;
+        }
+        buf++;
+
+        if (end > start && *end == 0)
+        {
+            // strip out private X-Mozilla-Status header & X-Mozilla-Draft-Info && envelope header
+            if (!PL_strncasecmp(start, X_MOZILLA_STATUS, X_MOZILLA_STATUS_LEN)
+                || !PL_strncasecmp(start, X_MOZILLA_DRAFT_INFO, X_MOZILLA_DRAFT_INFO_LEN)
+                || !PL_strncasecmp(start, "From ", 5))
+            {
+                while ( end < buf_end &&
+                        (*end == '\n' || *end == '\r' || *end == 0))
+                    end++;
+                start = end;
+            }
+            else
+            {
+                NS_ASSERTION (*end == 0, "content of end should be null");
+                rv = WriteString(start);
+                if (NS_FAILED(rv))
+                    return rv;
+                rv = WriteString(CRLF);
+                while ( end < buf_end &&
+                        (*end == '\n' || *end == '\r' || *end == 0))
+                    end++;
+                start = end;
+            }
+            buf = start;
+        }
+    }
+    return NS_OK;
+}
+
+nsresult nsMsgMdnGenerator::SendMdnMsg()
+{
+    DEBUG_MDN("nsMsgMdnGenerator::SendMdnMsg");
+    nsresult rv;
+    nsCOMPtr<nsISmtpService> smtpService = do_GetService(NS_SMTPSERVICE_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv,rv);
+
+    nsCOMPtr<nsIRequest> aRequest;
+    smtpService->SendMailMessage(m_file, m_dntRrt.get(), m_identity,
+                                     nullptr, this, nullptr, nullptr, false, nullptr,
+                                     getter_AddRefs(aRequest));
+
+    return NS_OK;
+}
+
+nsresult nsMsgMdnGenerator::WriteString( const char *str )
+{
+  NS_ENSURE_ARG (str);
+  uint32_t len = strlen(str);
+  uint32_t wLen = 0;
+
+  return m_outputStream->Write(str, len, &wLen);
+}
+
+nsresult nsMsgMdnGenerator::InitAndProcess(bool *needToAskUser)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::InitAndProcess");
+    nsresult rv = m_folder->GetServer(getter_AddRefs(m_server));
+    nsCOMPtr<nsIMsgAccountManager> accountManager =
+        do_GetService(NS_MSGACCOUNTMANAGER_CONTRACTID, &rv);
+    if (accountManager && m_server)
+    {
+        if (!m_identity)
+        {
+          // check if this is a message delivered to the global inbox,
+          // in which case we find the originating account's identity.
+          nsCString accountKey;
+          m_headers->ExtractHeader(HEADER_X_MOZILLA_ACCOUNT_KEY, false,
+                                   accountKey);
+          nsCOMPtr <nsIMsgAccount> account;
+          if (!accountKey.IsEmpty())
+            accountManager->GetAccount(accountKey, getter_AddRefs(account));
+          if (account)
+            account->GetIncomingServer(getter_AddRefs(m_server));
+
+          if (m_server)
+          {
+            // Find the correct identity based on the "To:" and "Cc:" header
+            nsCString mailTo;
+            nsCString mailCC;
+            m_headers->ExtractHeader(HEADER_TO, true, mailTo);
+            m_headers->ExtractHeader(HEADER_CC, true, mailCC);
+            nsCOMPtr<nsIArray> servIdentities;
+            accountManager->GetIdentitiesForServer(m_server, getter_AddRefs(servIdentities));
+            if (servIdentities)
+            {
+              nsCOMPtr<nsIMsgIdentity> ident;
+              nsCString identEmail;
+              uint32_t count = 0;
+              servIdentities->GetLength(&count);
+              // First check in the "To:" header
+              for (uint32_t i = 0; i < count; i++)
+              {
+                ident = do_QueryElementAt(servIdentities, i, &rv);
+                if (NS_FAILED(rv))
+                  continue;
+                ident->GetEmail(identEmail);
+                if (!mailTo.IsEmpty() && !identEmail.IsEmpty() &&
+                    mailTo.Find(identEmail, CaseInsensitiveCompare) != kNotFound)
+                {
+                  m_identity = ident;
+                  break;
+                }
+              }
+              // If no match, check the "Cc:" header
+              if (!m_identity)
+              {
+                for (uint32_t i = 0; i < count; i++)
+                {
+                  rv = servIdentities->QueryElementAt(i, NS_GET_IID(nsIMsgIdentity),getter_AddRefs(ident));
+                  if (NS_FAILED(rv))
+                    continue;
+                  ident->GetEmail(identEmail);
+                  if (!mailCC.IsEmpty() && !identEmail.IsEmpty() &&
+                      mailCC.Find(identEmail, CaseInsensitiveCompare) != kNotFound)
+                  {
+                    m_identity = ident;
+                    break;
+                  }
+                }
+              }
+            }
+
+            // If no match again, use the first identity
+            if (!m_identity)
+              rv = accountManager->GetFirstIdentityForServer(m_server, getter_AddRefs(m_identity));
+          }
+        }
+        NS_ENSURE_SUCCESS(rv,rv);
+
+        if (m_identity)
+        {
+            bool useCustomPrefs = false;
+            m_identity->GetBoolAttribute("use_custom_prefs", &useCustomPrefs);
+            if (useCustomPrefs)
+            {
+                bool bVal = false;
+                m_server->GetBoolValue("mdn_report_enabled", &bVal);
+                m_mdnEnabled = bVal;
+                m_server->GetIntValue("mdn_not_in_to_cc", &m_notInToCcOp);
+                m_server->GetIntValue("mdn_outside_domain",
+                                      &m_outsideDomainOp);
+                m_server->GetIntValue("mdn_other", &m_otherOp);
+            }
+            else
+            {
+                bool bVal = false;
+
+                nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+                if (NS_FAILED(rv))
+                    return rv;
+
+                if(prefBranch)
+                {
+                    prefBranch->GetBoolPref("mail.mdn.report.enabled",
+                                           &bVal);
+                    m_mdnEnabled = bVal;
+                    prefBranch->GetIntPref("mail.mdn.report.not_in_to_cc",
+                                           &m_notInToCcOp);
+                    prefBranch->GetIntPref("mail.mdn.report.outside_domain",
+                                           &m_outsideDomainOp);
+                    prefBranch->GetIntPref("mail.mdn.report.other",
+                                           &m_otherOp);
+                }
+            }
+        }
+    }
+
+    rv = m_folder->GetCharset(m_charset);
+    if (m_mdnEnabled)
+    {
+        m_headers->ExtractHeader(HEADER_DISPOSITION_NOTIFICATION_TO, false,
+                                 m_dntRrt);
+        if (m_dntRrt.IsEmpty())
+            m_headers->ExtractHeader(HEADER_RETURN_RECEIPT_TO, false,
+                                     m_dntRrt);
+        if (!m_dntRrt.IsEmpty() && ProcessSendMode() && ValidateReturnPath())
+        {
+            if (!m_autoSend)
+            {
+                *needToAskUser = true;
+                rv = NS_OK;
+            }
+            else
+            {
+                *needToAskUser = false;
+                rv = UserAgreed();
+            }
+        }
+    }
+    return rv;
+}
+
+NS_IMETHODIMP nsMsgMdnGenerator::Process(EDisposeType type,
+                                         nsIMsgWindow *aWindow,
+                                         nsIMsgFolder *folder,
+                                         nsMsgKey key,
+                                         nsIMimeHeaders *headers,
+                                         bool autoAction,
+                                         bool *_retval)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::Process");
+    NS_ENSURE_ARG_POINTER(folder);
+    NS_ENSURE_ARG_POINTER(headers);
+    NS_ENSURE_ARG_POINTER(aWindow);
+    NS_ENSURE_TRUE(key != nsMsgKey_None, NS_ERROR_INVALID_ARG);
+    m_disposeType = type;
+    m_autoAction = autoAction;
+    m_window = aWindow;
+    m_folder = folder;
+    m_headers = headers;
+    m_key = key;
+
+    mozilla::DebugOnly<nsresult> rv = InitAndProcess(_retval);
+    NS_ASSERTION(NS_SUCCEEDED(rv), "InitAndProcess failed");
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMdnGenerator::UserAgreed()
+{
+  DEBUG_MDN("nsMsgMdnGenerator::UserAgreed");
+  (void) NoteMDNRequestHandled();
+  return CreateMdnMsg();
+}
+
+NS_IMETHODIMP nsMsgMdnGenerator::UserDeclined()
+{
+  DEBUG_MDN("nsMsgMdnGenerator::UserDeclined");
+  return NoteMDNRequestHandled();
+}
+
+/**
+ * Set/clear flags appropriately so we won't ask user again about MDN
+ * request for this message.
+ */
+nsresult nsMsgMdnGenerator::NoteMDNRequestHandled()
+{
+  nsresult rv = StoreMDNSentFlag(m_folder, m_key);
+  NS_ASSERTION(NS_SUCCEEDED(rv), "StoreMDNSentFlag failed");
+  rv = ClearMDNNeededFlag(m_folder, m_key);
+  NS_ASSERTION(NS_SUCCEEDED(rv), "ClearMDNNeededFlag failed");
+  return rv;
+}
+
+NS_IMETHODIMP nsMsgMdnGenerator::OnStartRunningUrl(nsIURI *url)
+{
+    DEBUG_MDN("nsMsgMdnGenerator::OnStartRunningUrl");
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgMdnGenerator::OnStopRunningUrl(nsIURI *url,
+                                                  nsresult aExitCode)
+{
+    nsresult rv;
+
+    DEBUG_MDN("nsMsgMdnGenerator::OnStopRunningUrl");
+    if (m_file)
+      m_file->Remove(false);
+
+    if (NS_SUCCEEDED(aExitCode))
+      return NS_OK;
+
+    const char16_t* exitString;
+
+    switch (aExitCode)
+    {
+      case NS_ERROR_UNKNOWN_HOST:
+      case NS_ERROR_UNKNOWN_PROXY_HOST:
+        exitString = u"smtpSendFailedUnknownServer";
+        break;
+      case NS_ERROR_CONNECTION_REFUSED:
+      case NS_ERROR_PROXY_CONNECTION_REFUSED:
+        exitString = u"smtpSendRequestRefused";
+        break;
+      case NS_ERROR_NET_INTERRUPT:
+      case NS_ERROR_ABORT: // we have no proper string for error code NS_ERROR_ABORT in compose bundle
+        exitString = u"smtpSendInterrupted";
+        break;
+      case NS_ERROR_NET_TIMEOUT:
+      case NS_ERROR_NET_RESET:
+        exitString = u"smtpSendTimeout";
+        break;
+      default:
+        exitString = errorStringNameForErrorCode(aExitCode);
+        break;
+    }
+
+    nsCOMPtr<nsISmtpService> smtpService(do_GetService(NS_SMTPSERVICE_CONTRACTID, &rv));
+    NS_ENSURE_SUCCESS(rv,rv);
+
+    // Get the smtp hostname and format the string.
+    nsCString smtpHostName;
+    nsCOMPtr<nsISmtpServer> smtpServer;
+    rv = smtpService->GetServerByIdentity(m_identity, getter_AddRefs(smtpServer));
+    if (NS_SUCCEEDED(rv))
+      smtpServer->GetHostname(smtpHostName);
+
+    nsAutoString hostStr;
+    CopyASCIItoUTF16(smtpHostName, hostStr);
+    const char16_t *params[] = { hostStr.get() };
+
+    nsCOMPtr<nsIStringBundle> bundle;
+    nsCOMPtr<nsIStringBundleService> bundleService =
+      mozilla::services::GetStringBundleService();
+    NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+
+    rv = bundleService->CreateBundle(
+      "chrome://messenger/locale/messengercompose/composeMsgs.properties",
+      getter_AddRefs(bundle));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsString failed_msg, dialogTitle;
+
+    bundle->FormatStringFromName(exitString, params, 1, getter_Copies(failed_msg));
+    bundle->GetStringFromName(u"sendMessageErrorTitle", getter_Copies(dialogTitle));
+
+    nsCOMPtr<nsIPrompt> dialog;
+    rv = m_window->GetPromptDialog(getter_AddRefs(dialog));
+    if (NS_SUCCEEDED(rv))
+      dialog->Alert(dialogTitle.get(),failed_msg.get());
+
+    return NS_OK;
+}
diff --git a/mailnews/extensions/mdn/src/nsMsgMdnGenerator.h b/mailnews/extensions/mdn/src/nsMsgMdnGenerator.h
new file mode 100644
index 000000000..54b6efab4
--- /dev/null
+++ b/mailnews/extensions/mdn/src/nsMsgMdnGenerator.h
@@ -0,0 +1,90 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsMsgMdnGenerator_H_
+#define _nsMsgMdnGenerator_H_
+
+#include "nsIMsgMdnGenerator.h"
+#include "nsCOMPtr.h"
+#include "nsIUrlListener.h"
+#include "nsIMsgIncomingServer.h"
+#include "nsIOutputStream.h"
+#include "nsIFile.h"
+#include "nsIMsgIdentity.h"
+#include "nsIMsgWindow.h"
+#include "nsIMimeHeaders.h"
+#include "nsStringGlue.h"
+#include "MailNewsTypes2.h"
+
+#define eNeverSendOp ((int32_t) 0)
+#define eAutoSendOp ((int32_t) 1)
+#define eAskMeOp ((int32_t) 2)
+#define eDeniedOp ((int32_t) 3)
+
+class nsMsgMdnGenerator : public nsIMsgMdnGenerator, public nsIUrlListener
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMSGMDNGENERATOR
+  NS_DECL_NSIURLLISTENER
+
+  nsMsgMdnGenerator();
+
+private:
+  virtual ~nsMsgMdnGenerator();
+
+  // Sanity Check methods
+  bool ProcessSendMode(); // must called prior ValidateReturnPath
+  bool ValidateReturnPath();
+  bool NotInToOrCc();
+  bool MailAddrMatch(const char *addr1, const char *addr2);
+
+  nsresult StoreMDNSentFlag(nsIMsgFolder *folder, nsMsgKey key);
+  nsresult ClearMDNNeededFlag(nsIMsgFolder *folder, nsMsgKey key);
+  nsresult NoteMDNRequestHandled();
+
+  nsresult CreateMdnMsg();
+  nsresult CreateFirstPart();
+  nsresult CreateSecondPart();
+  nsresult CreateThirdPart();
+  nsresult SendMdnMsg();
+
+  // string bundle helper methods
+  nsresult GetStringFromName(const char16_t *aName, char16_t **aResultString);
+  nsresult FormatStringFromName(const char16_t *aName,
+                                const char16_t *aString,
+                                char16_t **aResultString);
+
+  // other helper methods
+  nsresult InitAndProcess(bool *needToAskUser);
+  nsresult OutputAllHeaders();
+  nsresult WriteString(const char *str);
+
+private:
+  EDisposeType m_disposeType;
+  nsCOMPtr<nsIMsgWindow> m_window;
+  nsCOMPtr<nsIOutputStream> m_outputStream;
+  nsCOMPtr<nsIFile> m_file;
+  nsCOMPtr<nsIMsgIdentity> m_identity;
+  nsMsgKey m_key;
+  nsCString m_charset;
+  nsCString m_email;
+  nsCString m_mimeSeparator;
+  nsCString m_messageId;
+  nsCOMPtr<nsIMsgFolder> m_folder;
+  nsCOMPtr<nsIMsgIncomingServer> m_server;
+  nsCOMPtr<nsIMimeHeaders> m_headers;
+  nsCString m_dntRrt;
+  int32_t m_notInToCcOp;
+  int32_t m_outsideDomainOp;
+  int32_t m_otherOp;
+  bool m_reallySendMdn;
+  bool m_autoSend;
+  bool m_autoAction;
+  bool m_mdnEnabled;
+};
+
+#endif // _nsMsgMdnGenerator_H_
+
diff --git a/mailnews/extensions/moz.build b/mailnews/extensions/moz.build
new file mode 100644
index 000000000..846e47871
--- /dev/null
+++ b/mailnews/extensions/moz.build
@@ -0,0 +1,19 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# These extensions are not optional.
+DIRS += [
+    'mdn',
+    'mailviews/public',
+    'mailviews/src',
+    'mailviews/content',
+    'bayesian-spam-filter',
+    'offline-startup',
+    'newsblog',
+    'fts3/public',
+    'fts3/src',
+    'smime',
+]
+
diff --git a/mailnews/extensions/newsblog/content/Feed.js b/mailnews/extensions/newsblog/content/Feed.js
new file mode 100644
index 000000000..7e47260a8
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/Feed.js
@@ -0,0 +1,620 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Cache for all of the feeds currently being downloaded, indexed by URL,
+// so the load event listener can access the Feed objects after it finishes
+// downloading the feed.
+var FeedCache =
+{
+  mFeeds: {},
+
+  putFeed: function (aFeed)
+  {
+    this.mFeeds[this.normalizeHost(aFeed.url)] = aFeed;
+  },
+
+  getFeed: function (aUrl)
+  {
+    let index = this.normalizeHost(aUrl);
+    if (index in this.mFeeds)
+      return this.mFeeds[index];
+
+    return null;
+  },
+
+  removeFeed: function (aUrl)
+  {
+    let index = this.normalizeHost(aUrl);
+    if (index in this.mFeeds)
+      delete this.mFeeds[index];
+  },
+
+  normalizeHost: function (aUrl)
+  {
+    try
+    {
+      let normalizedUrl = Services.io.newURI(aUrl, null, null);
+      normalizedUrl.host = normalizedUrl.host.toLowerCase();
+      return normalizedUrl.spec
+    }
+    catch (ex)
+    {
+      return aUrl;
+    }
+  }
+};
+
+function Feed(aResource, aRSSServer)
+{
+  this.resource = aResource.QueryInterface(Ci.nsIRDFResource);
+  this.server = aRSSServer;
+}
+
+Feed.prototype = 
+{
+  description: null,
+  author: null,
+  request: null,
+  server: null,
+  downloadCallback: null,
+  resource: null,
+  items: new Array(),
+  itemsStored: 0,
+  mFolder: null,
+  mInvalidFeed: false,
+  mFeedType: null,
+  mLastModified: null,
+
+  get folder()
+  {
+    return this.mFolder;
+  },
+
+  set folder (aFolder)
+  {
+    this.mFolder = aFolder;
+  },
+
+  get name()
+  {
+    // Used for the feed's title in Subcribe dialog and opml export.
+    let name = this.title || this.description || this.url;
+    return name.replace(/[\n\r\t]+/g, " ").replace(/[\x00-\x1F]+/g, "");
+  },
+
+  get folderName()
+  {
+    if (this.mFolderName)
+      return this.mFolderName;
+
+    // Get a unique sanitized name. Use title or description as a base;
+    // these are mandatory by spec. Length of 80 is plenty.
+    let folderName = (this.title || this.description || "").substr(0,80);
+    let defaultName = FeedUtils.strings.GetStringFromName("ImportFeedsNew");
+    return this.mFolderName = FeedUtils.getSanitizedFolderName(this.server.rootMsgFolder,
+                                                               folderName,
+                                                               defaultName,
+                                                               true);
+  },
+
+  download: function(aParseItems, aCallback)
+  {
+     // May be null.
+    this.downloadCallback = aCallback;
+
+    // Whether or not to parse items when downloading and parsing the feed.
+    // Defaults to true, but setting to false is useful for obtaining
+    // just the title of the feed when the user subscribes to it.
+    this.parseItems = aParseItems == null ? true : aParseItems ? true : false;
+
+    // Before we do anything, make sure the url is an http url.  This is just
+    // a sanity check so we don't try opening mailto urls, imap urls, etc. that
+    // the user may have tried to subscribe to as an rss feed.
+    if (!FeedUtils.isValidScheme(this.url))
+    {
+       // Simulate an invalid feed error.
+      FeedUtils.log.info("Feed.download: invalid protocol for - " + this.url);
+      this.onParseError(this);
+      return;
+    }
+
+    // Before we try to download the feed, make sure we aren't already
+    // processing the feed by looking up the url in our feed cache.
+    if (FeedCache.getFeed(this.url))
+    {
+      if (this.downloadCallback)
+        this.downloadCallback.downloaded(this, FeedUtils.kNewsBlogFeedIsBusy);
+      // Return, the feed is already in use.
+      return;
+    }
+
+    if (Services.io.offline) {
+      // If offline and don't want to go online, just add the feed subscription;
+      // it can be verified later (the folder name will be the url if not adding
+      // to an existing folder). Only for subscribe actions; passive biff and
+      // active get new messages are handled prior to getting here.
+      let win = Services.wm.getMostRecentWindow("mail:3pane");
+      if (!win.MailOfflineMgr.getNewMail()) {
+        this.storeNextItem();
+        return;
+      }
+    }
+
+    this.request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].
+                   createInstance(Ci.nsIXMLHttpRequest);
+    // Must set onProgress before calling open.
+    this.request.onprogress = this.onProgress;
+    this.request.open("GET", this.url, true);
+    this.request.channel.loadFlags |= Ci.nsIRequest.LOAD_BYPASS_CACHE |
+                                      Ci.nsIRequest.INHIBIT_CACHING;
+
+    // Some servers, if sent If-Modified-Since, will send 304 if subsequently
+    // not sent If-Modified-Since, as in the case of an unsubscribe and new
+    // subscribe.  Send start of century date to force a download; some servers
+    // will 304 on older dates (such as epoch 1970).
+    let lastModified = this.lastModified || "Sat, 01 Jan 2000 00:00:00 GMT";
+    this.request.setRequestHeader("If-Modified-Since", lastModified);
+
+    // Only order what you're going to eat...
+    this.request.responseType = "document";
+    this.request.overrideMimeType("text/xml");
+    this.request.setRequestHeader("Accept", FeedUtils.REQUEST_ACCEPT);
+    this.request.timeout = FeedUtils.REQUEST_TIMEOUT;
+    this.request.onload = this.onDownloaded;
+    this.request.onerror = this.onDownloadError;
+    this.request.ontimeout = this.onDownloadError;
+    FeedCache.putFeed(this);
+    this.request.send(null);
+  },
+
+  onDownloaded: function(aEvent)
+  {
+    let request = aEvent.target;
+    let isHttp = request.channel.originalURI.scheme.startsWith("http");
+    let url = request.channel.originalURI.spec;
+    if (isHttp && (request.status < 200 || request.status >= 300))
+    {
+      Feed.prototype.onDownloadError(aEvent);
+      return;
+    }
+
+    FeedUtils.log.debug("Feed.onDownloaded: got a download - " + url);
+    let feed = FeedCache.getFeed(url);
+    if (!feed)
+      throw new Error("Feed.onDownloaded: error - couldn't retrieve feed " +
+                      "from cache");
+
+    // If the server sends a Last-Modified header, store the property on the
+    // feed so we can use it when making future requests, to avoid downloading
+    // and parsing feeds that have not changed.  Don't update if merely checking
+    // the url, as for subscribe move/copy, as a subsequent refresh may get a 304.
+    // Save the response and persist it only upon successful completion of the
+    // refresh cycle (i.e. not if the request is cancelled).
+    let lastModifiedHeader = request.getResponseHeader("Last-Modified");
+    feed.mLastModified = (lastModifiedHeader && feed.parseItems) ?
+                           lastModifiedHeader : null;
+
+    // The download callback is called asynchronously when parse() is done.
+    feed.parse();
+  },
+  
+  onProgress: function(aEvent) 
+  {
+    let request = aEvent.target;
+    let url = request.channel.originalURI.spec;
+    let feed = FeedCache.getFeed(url);
+
+    if (feed.downloadCallback)
+      feed.downloadCallback.onProgress(feed, aEvent.loaded, aEvent.total,
+                                       aEvent.lengthComputable);
+  },
+
+  onDownloadError: function(aEvent)
+  {
+    let request = aEvent.target;
+    let url = request.channel.originalURI.spec;
+    let feed = FeedCache.getFeed(url);
+    if (feed.downloadCallback) 
+    {
+      // Generic network or 'not found' error initially.
+      let error = FeedUtils.kNewsBlogRequestFailure;
+
+      if (request.status == 304) {
+        // If the http status code is 304, the feed has not been modified
+        // since we last downloaded it and does not need to be parsed.
+        error = FeedUtils.kNewsBlogNoNewItems;
+      }
+      else {
+        let [errType, errName] = FeedUtils.createTCPErrorFromFailedXHR(request);
+        FeedUtils.log.info("Feed.onDownloaded: request errType:errName:statusCode - " +
+                           errType + ":" + errName + ":" + request.status);
+        if (errType == "SecurityCertificate")
+          // This is the code for nsINSSErrorsService.ERROR_CLASS_BAD_CERT
+          // overrideable security certificate errors.
+          error = FeedUtils.kNewsBlogBadCertError;
+
+        if (request.status == 401 || request.status == 403)
+          // Unauthorized or Forbidden.
+          error = FeedUtils.kNewsBlogNoAuthError;
+      }
+
+      feed.downloadCallback.downloaded(feed, error);
+    }
+
+    FeedCache.removeFeed(url);
+  },
+
+  onParseError: function(aFeed)
+  {
+    if (!aFeed)
+      return;
+
+    aFeed.mInvalidFeed = true;
+    if (aFeed.downloadCallback)
+      aFeed.downloadCallback.downloaded(aFeed, FeedUtils.kNewsBlogInvalidFeed);
+
+    FeedCache.removeFeed(aFeed.url);
+  },
+
+  onUrlChange: function(aFeed, aOldUrl)
+  {
+    if (!aFeed)
+      return;
+
+    // Simulate a cancel after a url update; next cycle will check the new url.
+    aFeed.mInvalidFeed = true;
+    if (aFeed.downloadCallback)
+      aFeed.downloadCallback.downloaded(aFeed, FeedUtils.kNewsBlogCancel);
+
+    FeedCache.removeFeed(aOldUrl);
+  },
+
+  get url()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let url = ds.GetTarget(this.resource, FeedUtils.DC_IDENTIFIER, true);
+    if (url)
+      url = url.QueryInterface(Ci.nsIRDFLiteral).Value;
+    else
+      url = this.resource.ValueUTF8;
+
+    return url;
+  },
+
+  get title()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let title = ds.GetTarget(this.resource, FeedUtils.DC_TITLE, true);
+    if (title)
+      title = title.QueryInterface(Ci.nsIRDFLiteral).Value;
+
+    return title;
+  },
+
+  set title (aNewTitle)
+  {
+    if (!aNewTitle)
+      return;
+
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    aNewTitle = FeedUtils.rdf.GetLiteral(aNewTitle);
+    let old_title = ds.GetTarget(this.resource, FeedUtils.DC_TITLE, true);
+    if (old_title)
+        ds.Change(this.resource, FeedUtils.DC_TITLE, old_title, aNewTitle);
+    else
+        ds.Assert(this.resource, FeedUtils.DC_TITLE, aNewTitle, true);
+  },
+
+  get lastModified()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let lastModified = ds.GetTarget(this.resource,
+                                    FeedUtils.DC_LASTMODIFIED,
+                                    true);
+    if (lastModified)
+      lastModified = lastModified.QueryInterface(Ci.nsIRDFLiteral).Value;
+
+    return lastModified;
+  },
+
+  set lastModified(aLastModified)
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    aLastModified = FeedUtils.rdf.GetLiteral(aLastModified);
+    let old_lastmodified = ds.GetTarget(this.resource,
+                                        FeedUtils.DC_LASTMODIFIED,
+                                        true);
+    if (old_lastmodified)
+      ds.Change(this.resource, FeedUtils.DC_LASTMODIFIED,
+                old_lastmodified, aLastModified);
+    else
+      ds.Assert(this.resource, FeedUtils.DC_LASTMODIFIED, aLastModified, true);
+  },
+
+  get quickMode ()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let quickMode = ds.GetTarget(this.resource, FeedUtils.FZ_QUICKMODE, true);
+    if (quickMode)
+    {
+      quickMode = quickMode.QueryInterface(Ci.nsIRDFLiteral);
+      quickMode = quickMode.Value == "true";
+    }
+
+    return quickMode;
+  },
+
+  set quickMode (aNewQuickMode)
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    aNewQuickMode = FeedUtils.rdf.GetLiteral(aNewQuickMode);
+    let old_quickMode = ds.GetTarget(this.resource, 
+                                     FeedUtils.FZ_QUICKMODE,
+                                     true);
+    if (old_quickMode)
+      ds.Change(this.resource, FeedUtils.FZ_QUICKMODE,
+                old_quickMode, aNewQuickMode);
+    else
+      ds.Assert(this.resource, FeedUtils.FZ_QUICKMODE,
+                aNewQuickMode, true);
+  },
+
+  get options ()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let options = ds.GetTarget(this.resource, FeedUtils.FZ_OPTIONS, true);
+    if (options)
+      return JSON.parse(options.QueryInterface(Ci.nsIRDFLiteral).Value);
+
+    return null;
+  },
+
+  set options (aOptions)
+  {
+    let newOptions = aOptions ? FeedUtils.newOptions(aOptions) :
+                                FeedUtils._optionsDefault;
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    newOptions = FeedUtils.rdf.GetLiteral(JSON.stringify(newOptions));
+    let oldOptions = ds.GetTarget(this.resource, FeedUtils.FZ_OPTIONS, true);
+    if (oldOptions)
+      ds.Change(this.resource, FeedUtils.FZ_OPTIONS, oldOptions, newOptions);
+    else
+      ds.Assert(this.resource, FeedUtils.FZ_OPTIONS, newOptions, true);
+  },
+
+  categoryPrefs: function ()
+  {
+    let categoryPrefsAcct = FeedUtils.getOptionsAcct(this.server).category;
+    if (!this.options)
+      return categoryPrefsAcct;
+
+    return this.options.category;
+  },
+
+  get link ()
+  {
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    let link = ds.GetTarget(this.resource, FeedUtils.RSS_LINK, true);
+    if (link)
+      link = link.QueryInterface(Ci.nsIRDFLiteral).Value;
+
+    return link;
+  },
+
+  set link (aNewLink)
+  {
+    if (!aNewLink)
+      return;
+
+    let ds = FeedUtils.getSubscriptionsDS(this.server);
+    aNewLink = FeedUtils.rdf.GetLiteral(aNewLink);
+    let old_link = ds.GetTarget(this.resource, FeedUtils.RSS_LINK, true);
+    if (old_link)
+      ds.Change(this.resource, FeedUtils.RSS_LINK, old_link, aNewLink);
+    else
+      ds.Assert(this.resource, FeedUtils.RSS_LINK, aNewLink, true);
+  },
+
+  parse: function()
+  {
+    // Create a feed parser which will parse the feed.
+    let parser = new FeedParser();
+    this.itemsToStore = parser.parseFeed(this, this.request.responseXML);
+    parser = null;
+
+    if (this.mInvalidFeed)
+    {
+      this.request = null;
+      this.mInvalidFeed = false;
+      return;
+    }
+
+    // storeNextItem() will iterate through the parsed items, storing each one.
+    this.itemsToStoreIndex = 0;
+    this.itemsStored = 0;
+    this.storeNextItem();
+  },
+
+  invalidateItems: function ()
+  {
+    let ds = FeedUtils.getItemsDS(this.server);
+    FeedUtils.log.debug("Feed.invalidateItems: for url - " + this.url);
+    let items = ds.GetSources(FeedUtils.FZ_FEED, this.resource, true);
+    let item;
+
+    while (items.hasMoreElements())
+    {
+      item = items.getNext();
+      item = item.QueryInterface(Ci.nsIRDFResource);
+      FeedUtils.log.trace("Feed.invalidateItems: item - " + item.Value);
+      let valid = ds.GetTarget(item, FeedUtils.FZ_VALID, true);
+      if (valid)
+        ds.Unassert(item, FeedUtils.FZ_VALID, valid, true);
+    }
+  },
+
+  removeInvalidItems: function(aDeleteFeed)
+  {
+    let ds = FeedUtils.getItemsDS(this.server);
+    FeedUtils.log.debug("Feed.removeInvalidItems: for url - " + this.url);
+    let items = ds.GetSources(FeedUtils.FZ_FEED, this.resource, true);
+    let item;
+    let currentTime = new Date().getTime();
+    while (items.hasMoreElements())
+    {
+      item = items.getNext();
+      item = item.QueryInterface(Ci.nsIRDFResource);
+
+      if (ds.HasAssertion(item, FeedUtils.FZ_VALID,
+                          FeedUtils.RDF_LITERAL_TRUE, true))
+        continue;
+
+      let lastSeenTime = ds.GetTarget(item, FeedUtils.FZ_LAST_SEEN_TIMESTAMP, true);
+      if (lastSeenTime)
+        lastSeenTime = parseInt(lastSeenTime.QueryInterface(Ci.nsIRDFLiteral).Value)
+      else
+        lastSeenTime = 0;
+
+      if ((currentTime - lastSeenTime) < FeedUtils.INVALID_ITEM_PURGE_DELAY &&
+          !aDeleteFeed)
+        // Don't immediately purge items in active feeds; do so for deleted feeds.
+        continue;
+
+      FeedUtils.log.trace("Feed.removeInvalidItems: item - " + item.Value);
+      ds.Unassert(item, FeedUtils.FZ_FEED, this.resource, true);
+      if (ds.hasArcOut(item, FeedUtils.FZ_FEED))
+        FeedUtils.log.debug("Feed.removeInvalidItems: " + item.Value +
+                            " is from more than one feed; only the reference to" +
+                            " this feed removed");
+      else
+        FeedUtils.removeAssertions(ds, item);
+    }
+  },
+
+  createFolder: function()
+  {
+    if (this.folder)
+      return;
+
+    try {
+      this.folder = this.server.rootMsgFolder
+                               .QueryInterface(Ci.nsIMsgLocalMailFolder)
+                               .createLocalSubfolder(this.folderName);
+    }
+    catch (ex) {
+      // An error creating.
+      FeedUtils.log.info("Feed.createFolder: error creating folder - '"+
+                          this.folderName+"' in parent folder "+
+                          this.server.rootMsgFolder.filePath.path + " -- "+ex);
+      // But its remnants are still there, clean up.
+      let xfolder = this.server.rootMsgFolder.getChildNamed(this.folderName);
+      this.server.rootMsgFolder.propagateDelete(xfolder, true, null);
+    }
+  },
+
+  // Gets the next item from itemsToStore and forces that item to be stored
+  // to the folder.  If more items are left to be stored, fires a timer for
+  // the next one, otherwise triggers a download done notification to the UI.
+  storeNextItem: function()
+  {
+    if (FeedUtils.CANCEL_REQUESTED)
+    {
+      FeedUtils.CANCEL_REQUESTED = false;
+      this.cleanupParsingState(this, FeedUtils.kNewsBlogCancel);
+      return;
+    }
+
+    if (!this.itemsToStore || !this.itemsToStore.length)
+    {
+      let code = FeedUtils.kNewsBlogSuccess;
+      this.createFolder();
+      if (!this.folder)
+        code = FeedUtils.kNewsBlogFileError;
+      this.cleanupParsingState(this, code);
+      return;
+    }
+
+    let item = this.itemsToStore[this.itemsToStoreIndex];
+
+    if (item.store())
+      this.itemsStored++;
+
+    if (!this.folder)
+    {
+      this.cleanupParsingState(this, FeedUtils.kNewsBlogFileError);
+      return;
+    }
+
+    this.itemsToStoreIndex++;
+
+    // If the listener is tracking progress for each item, report it here.
+    if (item.feed.downloadCallback && item.feed.downloadCallback.onFeedItemStored)
+      item.feed.downloadCallback.onFeedItemStored(item.feed,
+                                                  this.itemsToStoreIndex,
+                                                  this.itemsToStore.length);
+
+    // Eventually we'll report individual progress here.
+
+    if (this.itemsToStoreIndex < this.itemsToStore.length)
+    {
+      if (!this.storeItemsTimer)
+        this.storeItemsTimer = Cc["@mozilla.org/timer;1"].
+                               createInstance(Ci.nsITimer);
+      this.storeItemsTimer.initWithCallback(this, 50, Ci.nsITimer.TYPE_ONE_SHOT);
+    }
+    else
+    {
+      // We have just finished downloading one or more feed items into the
+      // destination folder; if the folder is still listed as having new
+      // messages in it, then we should set the biff state on the folder so the
+      // right RDF UI changes happen in the folder pane to indicate new mail.
+      if (item.feed.folder.hasNewMessages)
+      {
+        item.feed.folder.biffState = Ci.nsIMsgFolder.nsMsgBiffState_NewMail;
+        // Run the bayesian spam filter, if enabled.
+        item.feed.folder.callFilterPlugins(null);
+      }
+
+      this.cleanupParsingState(this, FeedUtils.kNewsBlogSuccess);
+    }
+  },
+
+  cleanupParsingState: function(aFeed, aCode)
+  {
+    // Now that we are done parsing the feed, remove the feed from the cache.
+    FeedCache.removeFeed(aFeed.url);
+
+    if (aFeed.parseItems)
+    {
+      // Do this only if we're in parse/store mode.
+      aFeed.removeInvalidItems(false);
+
+      if (aCode == FeedUtils.kNewsBlogSuccess && aFeed.mLastModified)
+        aFeed.lastModified = aFeed.mLastModified;
+
+      // Flush any feed item changes to disk.
+      let ds = FeedUtils.getItemsDS(aFeed.server);
+      ds.Flush();
+      FeedUtils.log.debug("Feed.cleanupParsingState: items stored - " + this.itemsStored);
+    }
+
+    // Force the xml http request to go away.  This helps reduce some nasty
+    // assertions on shut down.
+    this.request = null;
+    this.itemsToStore = "";
+    this.itemsToStoreIndex = 0;
+    this.itemsStored = 0;
+    this.storeItemsTimer = null;
+
+    if (aFeed.downloadCallback)
+      aFeed.downloadCallback.downloaded(aFeed, aCode);
+  },
+
+  // nsITimerCallback
+  notify: function(aTimer)
+  {
+    this.storeNextItem();
+  }
+};
diff --git a/mailnews/extensions/newsblog/content/FeedItem.js b/mailnews/extensions/newsblog/content/FeedItem.js
new file mode 100644
index 000000000..09e4eb861
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/FeedItem.js
@@ -0,0 +1,490 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+function FeedItem()
+{
+  this.mDate = FeedUtils.getValidRFC5322Date();
+  this.mUnicodeConverter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
+                           createInstance(Ci.nsIScriptableUnicodeConverter);
+  this.mParserUtils = Cc["@mozilla.org/parserutils;1"].
+                      getService(Ci.nsIParserUtils);
+}
+
+FeedItem.prototype =
+{
+  // Only for IETF Atom.
+  xmlContentBase: null,
+  id: null,
+  feed: null,
+  description: null,
+  content: null,
+  enclosures: [],
+  title: null,
+  author: "anonymous",
+  inReplyTo: "",
+  keywords: [],
+  mURL: null,
+  characterSet: "UTF-8",
+
+  ENCLOSURE_BOUNDARY_PREFIX: "--------------", // 14 dashes
+  ENCLOSURE_HEADER_BOUNDARY_PREFIX: "------------", // 12 dashes
+  MESSAGE_TEMPLATE: '\n' +
+    '<html>\n' +
+    '  <head>\n' +
+    '    <title>%TITLE%</title>\n' +
+    '    <base href="%BASE%">\n' +
+    '  </head>\n' +
+    '  <body id="msgFeedSummaryBody" selected="false">\n' +
+    '    %CONTENT%\n' +
+    '  </body>\n' +
+    '</html>\n',
+
+  get url()
+  {
+    return this.mURL;
+  },
+
+  set url(aVal)
+  {
+    try
+    {
+      this.mURL = Services.io.newURI(aVal, null, null).spec;
+    }
+    catch(ex)
+    {
+      // The url as published or constructed can be a non url.  It's used as a
+      // feeditem identifier in feeditems.rdf, as a messageId, and as an href
+      // and for the content-base header.  Save as is; ensure not null.
+      this.mURL = aVal ? aVal : "";
+    }
+  },
+
+  get date()
+  {
+    return this.mDate;
+  },
+
+  set date (aVal)
+  {
+    this.mDate = aVal;
+  },
+
+  get identity ()
+  {
+    return this.feed.name + ": " + this.title + " (" + this.id + ")"
+  },
+
+  normalizeMessageID: function(messageID)
+  {
+    // Escape occurrences of message ID meta characters <, >, and @.
+    messageID.replace(/</g, "%3C");
+    messageID.replace(/>/g, "%3E");
+    messageID.replace(/@/g, "%40");
+    messageID = "<" + messageID.trim() + "@" + "localhost.localdomain" + ">";
+
+    FeedUtils.log.trace("FeedItem.normalizeMessageID: messageID - " + messageID);
+    return messageID;
+  },
+
+  get itemUniqueURI()
+  {
+    return this.createURN(this.id);
+  },
+
+  get contentBase()
+  {
+    if(this.xmlContentBase)
+      return this.xmlContentBase
+    else
+      return this.mURL;
+  },
+
+  store: function()
+  {
+    // this.title and this.content contain HTML.
+    // this.mUrl and this.contentBase contain plain text.
+
+    let stored = false;
+    let resource = this.findStoredResource();
+    if (!this.feed.folder)
+      return stored;
+
+    if (resource == null)
+    {
+      resource = FeedUtils.rdf.GetResource(this.itemUniqueURI);
+      if (!this.content)
+      {
+        FeedUtils.log.trace("FeedItem.store: " + this.identity +
+                            " no content; storing description or title");
+        this.content = this.description || this.title;
+      }
+
+      let content = this.MESSAGE_TEMPLATE;
+      content = content.replace(/%TITLE%/, this.title);
+      content = content.replace(/%BASE%/, this.htmlEscape(this.contentBase));
+      content = content.replace(/%CONTENT%/, this.content);
+      this.content = content;
+      this.writeToFolder();
+      this.markStored(resource);
+      stored = true;
+    }
+    this.markValid(resource);
+    return stored;
+  },
+
+  findStoredResource: function()
+  {
+    // Checks to see if the item has already been stored in its feed's
+    // message folder.
+    FeedUtils.log.trace("FeedItem.findStoredResource: checking if stored - " +
+                        this.identity);
+
+    let server = this.feed.server;
+    let folder = this.feed.folder;
+
+    if (!folder)
+    {
+      FeedUtils.log.debug("FeedItem.findStoredResource: folder '" +
+                          this.feed.folderName +
+                          "' doesn't exist; creating as child of " +
+                          server.rootMsgFolder.prettyName + "\n");
+      this.feed.createFolder();
+      return null;
+    }
+
+    let ds = FeedUtils.getItemsDS(server);
+    let itemURI = this.itemUniqueURI;
+    let itemResource = FeedUtils.rdf.GetResource(itemURI);
+
+    let downloaded = ds.GetTarget(itemResource, FeedUtils.FZ_STORED, true);
+
+    if (!downloaded ||
+        downloaded.QueryInterface(Ci.nsIRDFLiteral).Value == "false")
+    {
+      FeedUtils.log.trace("FeedItem.findStoredResource: not stored");
+      return null;
+    }
+
+    FeedUtils.log.trace("FeedItem.findStoredResource: already stored");
+    return itemResource;
+  },
+
+  markValid: function(resource)
+  {
+    let ds = FeedUtils.getItemsDS(this.feed.server);
+
+    let newTimeStamp = FeedUtils.rdf.GetLiteral(new Date().getTime());
+    let currentTimeStamp = ds.GetTarget(resource,
+                                        FeedUtils.FZ_LAST_SEEN_TIMESTAMP,
+                                        true);
+    if (currentTimeStamp)
+      ds.Change(resource, FeedUtils.FZ_LAST_SEEN_TIMESTAMP,
+                currentTimeStamp, newTimeStamp);
+    else
+      ds.Assert(resource, FeedUtils.FZ_LAST_SEEN_TIMESTAMP,
+                newTimeStamp, true);
+
+    if (!ds.HasAssertion(resource, FeedUtils.FZ_FEED,
+                         FeedUtils.rdf.GetResource(this.feed.url), true))
+      ds.Assert(resource, FeedUtils.FZ_FEED,
+                FeedUtils.rdf.GetResource(this.feed.url), true);
+
+    if (ds.hasArcOut(resource, FeedUtils.FZ_VALID))
+    {
+      let currentValue = ds.GetTarget(resource, FeedUtils.FZ_VALID, true);
+      ds.Change(resource, FeedUtils.FZ_VALID,
+                currentValue, FeedUtils.RDF_LITERAL_TRUE);
+    }
+    else
+      ds.Assert(resource, FeedUtils.FZ_VALID, FeedUtils.RDF_LITERAL_TRUE, true);
+  },
+
+  markStored: function(resource)
+  {
+    let ds = FeedUtils.getItemsDS(this.feed.server);
+
+    if (!ds.HasAssertion(resource, FeedUtils.FZ_FEED,
+                         FeedUtils.rdf.GetResource(this.feed.url), true))
+      ds.Assert(resource, FeedUtils.FZ_FEED,
+                FeedUtils.rdf.GetResource(this.feed.url), true);
+
+    let currentValue;
+    if (ds.hasArcOut(resource, FeedUtils.FZ_STORED))
+    {
+      currentValue = ds.GetTarget(resource, FeedUtils.FZ_STORED, true);
+      ds.Change(resource, FeedUtils.FZ_STORED, 
+                currentValue, FeedUtils.RDF_LITERAL_TRUE);
+    }
+    else
+      ds.Assert(resource, FeedUtils.FZ_STORED,
+                FeedUtils.RDF_LITERAL_TRUE, true);
+  },
+
+  mimeEncodeSubject: function(aSubject, aCharset)
+  {
+    // This routine sometimes throws exceptions for mis-encoded data so
+    // wrap it with a try catch for now.
+    let newSubject;
+    try
+    {
+      newSubject = mailServices.mimeConverter.encodeMimePartIIStr_UTF8(aSubject,
+                     false,
+                     aCharset, 9, 72);
+    }
+    catch (ex)
+    {
+      newSubject = aSubject;
+    }
+
+    return newSubject;
+  },
+
+  writeToFolder: function()
+  {
+    FeedUtils.log.trace("FeedItem.writeToFolder: " + this.identity +
+                        " writing to message folder " + this.feed.name);
+    // Convert the title to UTF-16 before performing our HTML entity
+    // replacement reg expressions.
+    let title = this.title;
+
+    // The subject may contain HTML entities.  Convert these to their unencoded
+    // state. i.e. &amp; becomes '&'.
+    title = this.mParserUtils.convertToPlainText(
+        title,
+        Ci.nsIDocumentEncoder.OutputSelectionOnly |
+        Ci.nsIDocumentEncoder.OutputAbsoluteLinks,
+        0);
+
+    // Compress white space in the subject to make it look better.  Trim
+    // leading/trailing spaces to prevent mbox header folding issue at just
+    // the right subject length.
+    title = title.replace(/[\t\r\n]+/g, " ").trim();
+
+    this.title = this.mimeEncodeSubject(title, this.characterSet);
+
+    // If the date looks like it's in W3C-DTF format, convert it into
+    // an IETF standard date.  Otherwise assume it's in IETF format.
+    if (this.mDate.search(/^\d\d\d\d/) != -1)
+      this.mDate = new Date(this.mDate).toUTCString();
+
+    // If there is an inreplyto value, create the headers.
+    let inreplytoHdrsStr = this.inReplyTo ?
+      ("References: " + this.inReplyTo + "\n" +
+       "In-Reply-To: " + this.inReplyTo + "\n") : "";
+
+    // If there are keywords (categories), create the headers. In the case of
+    // a longer than RFC5322 recommended line length, create multiple folded
+    // lines (easier to parse than multiple Keywords headers).
+    let keywordsStr = "";
+    if (this.keywords.length)
+    {
+      let HEADER = "Keywords: ";
+      let MAXLEN = 78;
+      keywordsStr = HEADER;
+      let keyword;
+      let keywords = [].concat(this.keywords);
+      let lines = [];
+      while (keywords.length)
+      {
+        keyword = keywords.shift();
+        if (keywordsStr.length + keyword.length > MAXLEN)
+        {
+          lines.push(keywordsStr)
+          keywordsStr = " ".repeat(HEADER.length);
+        }
+        keywordsStr += keyword + ",";
+      }
+      keywordsStr = keywordsStr.replace(/,$/,"\n");
+      lines.push(keywordsStr)
+      keywordsStr = lines.join("\n");
+    }
+
+    // Escape occurrences of "From " at the beginning of lines of
+    // content per the mbox standard, since "From " denotes a new
+    // message, and add a line break so we know the last line has one.
+    this.content = this.content.replace(/([\r\n]+)(>*From )/g, "$1>$2");
+    this.content += "\n";
+
+    // The opening line of the message, mandated by standards to start
+    // with "From ".  It's useful to construct this separately because
+    // we not only need to write it into the message, we also need to
+    // use it to calculate the offset of the X-Mozilla-Status lines from
+    // the front of the message for the statusOffset property of the
+    // DB header object.
+    let openingLine = 'From - ' + this.mDate + '\n';
+
+    let source =
+      openingLine +
+      'X-Mozilla-Status: 0000\n' +
+      'X-Mozilla-Status2: 00000000\n' +
+      'X-Mozilla-Keys: ' + " ".repeat(80) + '\n' +
+      'Received: by localhost; ' + FeedUtils.getValidRFC5322Date() + '\n' +
+      'Date: ' + this.mDate + '\n' +
+      'Message-Id: ' + this.normalizeMessageID(this.id) + '\n' +
+      'From: ' + this.author + '\n' +
+      'MIME-Version: 1.0\n' +
+      'Subject: ' + this.title + '\n' +
+      inreplytoHdrsStr +
+      keywordsStr +
+      'Content-Transfer-Encoding: 8bit\n' +
+      'Content-Base: ' + this.mURL + '\n';
+
+    if (this.enclosures.length)
+    {
+      let boundaryID = source.length;
+      source += 'Content-Type: multipart/mixed; boundary="' +
+                this.ENCLOSURE_HEADER_BOUNDARY_PREFIX + boundaryID + '"' + '\n\n' +
+                'This is a multi-part message in MIME format.\n' +
+                this.ENCLOSURE_BOUNDARY_PREFIX + boundaryID + '\n' +
+                'Content-Type: text/html; charset=' + this.characterSet + '\n' +
+                'Content-Transfer-Encoding: 8bit\n' +
+                this.content;
+
+      this.enclosures.forEach(function(enclosure) {
+        source += enclosure.convertToAttachment(boundaryID);
+      });
+
+      source += this.ENCLOSURE_BOUNDARY_PREFIX + boundaryID + '--' + '\n\n\n';
+    }
+    else
+      source += 'Content-Type: text/html; charset=' + this.characterSet + '\n' +
+                this.content;
+
+    FeedUtils.log.trace("FeedItem.writeToFolder: " + this.identity +
+                        " is " + source.length + " characters long");
+
+    // Get the folder and database storing the feed's messages and headers.
+    let folder = this.feed.folder.QueryInterface(Ci.nsIMsgLocalMailFolder);
+    let msgFolder = folder.QueryInterface(Ci.nsIMsgFolder);
+    msgFolder.gettingNewMessages = true;
+    // Source is a unicode string, we want to save a char * string in
+    // the original charset. So convert back.
+    this.mUnicodeConverter.charset = this.characterSet;
+    let msgDBHdr = folder.addMessage(this.mUnicodeConverter.ConvertFromUnicode(source));
+    msgDBHdr.OrFlags(Ci.nsMsgMessageFlags.FeedMsg);
+    msgFolder.gettingNewMessages = false;
+    this.tagItem(msgDBHdr, this.keywords);
+  },
+
+/**
+ * Autotag messages.
+ *
+ * @param  nsIMsgDBHdr aMsgDBHdr - message to tag
+ * @param  array aKeywords       - keywords (tags)
+ */
+  tagItem: function(aMsgDBHdr, aKeywords)
+  {
+    let categoryPrefs = this.feed.categoryPrefs();
+    if (!aKeywords.length || !categoryPrefs.enabled)
+      return;
+
+    let msgArray = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
+    msgArray.appendElement(aMsgDBHdr, false);
+
+    let prefix = categoryPrefs.prefixEnabled ? categoryPrefs.prefix : "";
+    let rtl = Services.prefs.getIntPref("bidi.direction") == 2;
+
+    let keys = [];
+    for (let keyword of aKeywords)
+    {
+      keyword = rtl ? keyword + prefix : prefix + keyword;
+      let keyForTag = MailServices.tags.getKeyForTag(keyword);
+      if (!keyForTag)
+      {
+        // Add the tag if it doesn't exist.
+        MailServices.tags.addTag(keyword, "", FeedUtils.AUTOTAG);
+        keyForTag = MailServices.tags.getKeyForTag(keyword);
+      }
+
+      // Add the tag key to the keys array.
+      keys.push(keyForTag);
+    }
+
+    if (keys.length)
+      // Add the keys to the message.
+      aMsgDBHdr.folder.addKeywordsToMessages(msgArray, keys.join(" "));
+  },
+
+  htmlEscape: function(s)
+  {
+    s = s.replace(/&/g, "&amp;");
+    s = s.replace(/>/g, "&gt;");
+    s = s.replace(/</g, "&lt;");
+    s = s.replace(/'/g, "&#39;");
+    s = s.replace(/"/g, "&quot;");
+    return s;
+  },
+
+  createURN: function(aName)
+  {
+    // Returns name as a URN in the 'feeditem' namespace. The returned URN is
+    // (or is intended to be) RFC2141 compliant.
+    // The builtin encodeURI provides nearly the exact encoding functionality
+    // required by the RFC.  The exceptions are that NULL characters should not
+    // appear, and that #, /, ?, &, and ~ should be escaped.
+    // NULL characters are removed before encoding.
+
+    let name = aName.replace(/\0/g, "");
+    let encoded = encodeURI(name);
+    encoded = encoded.replace(/\#/g, "%23");
+    encoded = encoded.replace(/\//g, "%2f");
+    encoded = encoded.replace(/\?/g, "%3f");
+    encoded = encoded.replace(/\&/g, "%26");
+    encoded = encoded.replace(/\~/g, "%7e");
+
+    return FeedUtils.FZ_ITEM_NS + encoded;
+  }
+};
+
+
+// A feed enclosure is to RSS what an attachment is for e-mail.  We make
+// enclosures look like attachments in the UI.
+function FeedEnclosure(aURL, aContentType, aLength, aTitle)
+{
+  this.mURL = aURL;
+  // Store a reasonable mimetype if content-type is not present.
+  this.mContentType = aContentType || "application/unknown";
+  this.mLength = aLength;
+  this.mTitle = aTitle;
+
+  // Generate a fileName from the URL.
+  if (this.mURL)
+  {
+    try
+    {
+      this.mFileName = Services.io.newURI(this.mURL, null, null).
+                                   QueryInterface(Ci.nsIURL).
+                                   fileName;
+    }
+    catch(ex)
+    {
+      this.mFileName = this.mURL;
+    }
+  }
+}
+
+FeedEnclosure.prototype =
+{
+  mURL: "",
+  mContentType: "",
+  mLength: 0,
+  mFileName: "",
+  mTitle: "",
+  ENCLOSURE_BOUNDARY_PREFIX: "--------------", // 14 dashes
+
+  // Returns a string that looks like an e-mail attachment which represents
+  // the enclosure.
+  convertToAttachment: function(aBoundaryID)
+  {
+    return '\n' +
+      this.ENCLOSURE_BOUNDARY_PREFIX + aBoundaryID + '\n' +
+      'Content-Type: ' + this.mContentType +
+                     '; name="' + (this.mTitle || this.mFileName) +
+                     (this.mLength ? '"; size=' + this.mLength : '"') + '\n' +
+      'X-Mozilla-External-Attachment-URL: ' + this.mURL + '\n' +
+      'Content-Disposition: attachment; filename="' + this.mFileName + '"\n\n' +
+      FeedUtils.strings.GetStringFromName("externalAttachmentMsg") + '\n';
+  }
+};
diff --git a/mailnews/extensions/newsblog/content/FeedUtils.jsm b/mailnews/extensions/newsblog/content/FeedUtils.jsm
new file mode 100644
index 000000000..6d5e64dd2
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/FeedUtils.jsm
@@ -0,0 +1,1608 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+this.EXPORTED_SYMBOLS = ["Feed", "FeedItem", "FeedParser", "FeedUtils"];
+
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource:///modules/gloda/log4moz.js");
+Cu.import("resource:///modules/mailServices.js");
+Cu.import("resource:///modules/MailUtils.js");
+Cu.import("resource:///modules/jsmime.jsm");
+Cu.import("resource://gre/modules/FileUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+Services.scriptloader.loadSubScript("chrome://messenger-newsblog/content/Feed.js");
+Services.scriptloader.loadSubScript("chrome://messenger-newsblog/content/FeedItem.js");
+Services.scriptloader.loadSubScript("chrome://messenger-newsblog/content/feed-parser.js");
+
+var FeedUtils = {
+  MOZ_PARSERERROR_NS: "http://www.mozilla.org/newlayout/xml/parsererror.xml",
+
+  RDF_SYNTAX_NS: "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
+  RDF_SYNTAX_TYPE: "http://www.w3.org/1999/02/22-rdf-syntax-ns#type",
+  get RDF_TYPE() { return this.rdf.GetResource(this.RDF_SYNTAX_TYPE) },
+
+  RSS_090_NS: "http://my.netscape.com/rdf/simple/0.9/",
+
+  RSS_NS: "http://purl.org/rss/1.0/",
+  get RSS_CHANNEL()     { return this.rdf.GetResource(this.RSS_NS + "channel") },
+  get RSS_TITLE()       { return this.rdf.GetResource(this.RSS_NS + "title") },
+  get RSS_DESCRIPTION() { return this.rdf.GetResource(this.RSS_NS + "description") },
+  get RSS_ITEMS()       { return this.rdf.GetResource(this.RSS_NS + "items") },
+  get RSS_ITEM()        { return this.rdf.GetResource(this.RSS_NS + "item") },
+  get RSS_LINK()        { return this.rdf.GetResource(this.RSS_NS + "link") },
+
+  RSS_CONTENT_NS: "http://purl.org/rss/1.0/modules/content/",
+  get RSS_CONTENT_ENCODED() {
+    return this.rdf.GetResource(this.RSS_CONTENT_NS + "encoded");
+  },
+
+  DC_NS: "http://purl.org/dc/elements/1.1/",
+  get DC_CREATOR()      { return this.rdf.GetResource(this.DC_NS + "creator") },
+  get DC_SUBJECT()      { return this.rdf.GetResource(this.DC_NS + "subject") },
+  get DC_DATE()         { return this.rdf.GetResource(this.DC_NS + "date") },
+  get DC_TITLE()        { return this.rdf.GetResource(this.DC_NS + "title") },
+  get DC_LASTMODIFIED() { return this.rdf.GetResource(this.DC_NS + "lastModified") },
+  get DC_IDENTIFIER()   { return this.rdf.GetResource(this.DC_NS + "identifier") },
+
+  MRSS_NS: "http://search.yahoo.com/mrss/",
+  FEEDBURNER_NS: "http://rssnamespace.org/feedburner/ext/1.0",
+  ITUNES_NS: "http://www.itunes.com/dtds/podcast-1.0.dtd",
+
+  FZ_NS: "urn:forumzilla:",
+  FZ_ITEM_NS: "urn:feeditem:",
+  get FZ_ROOT()       { return this.rdf.GetResource(this.FZ_NS + "root") },
+  get FZ_FEEDS()      { return this.rdf.GetResource(this.FZ_NS + "feeds") },
+  get FZ_FEED()       { return this.rdf.GetResource(this.FZ_NS + "feed") },
+  get FZ_QUICKMODE()  { return this.rdf.GetResource(this.FZ_NS + "quickMode") },
+  get FZ_DESTFOLDER() { return this.rdf.GetResource(this.FZ_NS + "destFolder") },
+  get FZ_STORED()     { return this.rdf.GetResource(this.FZ_NS + "stored") },
+  get FZ_VALID()      { return this.rdf.GetResource(this.FZ_NS + "valid") },
+  get FZ_OPTIONS()    { return this.rdf.GetResource(this.FZ_NS + "options"); },
+  get FZ_LAST_SEEN_TIMESTAMP() {
+    return this.rdf.GetResource(this.FZ_NS + "last-seen-timestamp");
+  },
+
+  get RDF_LITERAL_TRUE()  { return this.rdf.GetLiteral("true") },
+  get RDF_LITERAL_FALSE() { return this.rdf.GetLiteral("false") },
+
+  // Atom constants
+  ATOM_03_NS: "http://purl.org/atom/ns#",
+  ATOM_IETF_NS: "http://www.w3.org/2005/Atom",
+  ATOM_THREAD_NS: "http://purl.org/syndication/thread/1.0",
+
+  // Accept content mimetype preferences for feeds.
+  REQUEST_ACCEPT: "application/atom+xml," +
+                  "application/rss+xml;q=0.9," +
+                  "application/rdf+xml;q=0.8," +
+                  "application/xml;q=0.7,text/xml;q=0.7," +
+                  "*/*;q=0.1",
+  // Timeout for nonresponse to request, 30 seconds.
+  REQUEST_TIMEOUT: 30 * 1000,
+
+  // The approximate amount of time, specified in milliseconds, to leave an
+  // item in the RDF cache after the item has dissappeared from feeds.
+  // The delay is currently one day.
+  INVALID_ITEM_PURGE_DELAY: 24 * 60 * 60 * 1000,
+
+  kBiffMinutesDefault: 100,
+  kNewsBlogSuccess: 0,
+  // Usually means there was an error trying to parse the feed.
+  kNewsBlogInvalidFeed: 1,
+  // Generic networking failure when trying to download the feed.
+  kNewsBlogRequestFailure: 2,
+  kNewsBlogFeedIsBusy: 3,
+  // For 304 Not Modified; There are no new articles for this feed.
+  kNewsBlogNoNewItems: 4,
+  kNewsBlogCancel: 5,
+  kNewsBlogFileError: 6,
+  // Invalid certificate, for overridable user exception errors.
+  kNewsBlogBadCertError: 7,
+  // For 401 Unauthorized or 403 Forbidden.
+  kNewsBlogNoAuthError: 8,
+
+  CANCEL_REQUESTED: false,
+  AUTOTAG: "~AUTOTAG",
+
+/**
+ * Get all rss account servers rootFolders.
+ *
+ * @return array of nsIMsgIncomingServer (empty array if none).
+ */
+  getAllRssServerRootFolders: function() {
+    let rssRootFolders = [];
+    let allServers = MailServices.accounts.allServers;
+    for (let i = 0; i < allServers.length; i++)
+    {
+      let server = allServers.queryElementAt(i, Ci.nsIMsgIncomingServer);
+      if (server && server.type == "rss")
+        rssRootFolders.push(server.rootFolder);
+    }
+
+    // By default, Tb sorts by hostname, ie Feeds, Feeds-1, and not by alpha
+    // prettyName.  Do the same as a stock install to match folderpane order.
+    rssRootFolders.sort(function(a, b) { return a.hostname > b.hostname });
+
+    return rssRootFolders;
+  },
+
+/**
+ * Create rss account.
+ *
+ * @param  string [aName] - optional account name to override default.
+ * @return nsIMsgAccount.
+ */
+  createRssAccount: function(aName) {
+    let userName = "nobody";
+    let hostName = "Feeds";
+    let hostNamePref = hostName;
+    let server;
+    let serverType = "rss";
+    let defaultName = FeedUtils.strings.GetStringFromName("feeds-accountname");
+    let i = 2;
+    while (MailServices.accounts.findRealServer(userName, hostName, serverType, 0))
+      // If "Feeds" exists, try "Feeds-2", then "Feeds-3", etc.
+      hostName = hostNamePref + "-" + i++;
+
+    server = MailServices.accounts.createIncomingServer(userName, hostName, serverType);
+    server.biffMinutes = FeedUtils.kBiffMinutesDefault;
+    server.prettyName = aName ? aName : defaultName;
+    server.valid = true;
+    let account = MailServices.accounts.createAccount();
+    account.incomingServer = server;
+
+    // Ensure the Trash folder db (.msf) is created otherwise folder/message
+    // deletes will throw until restart creates it.
+    server.msgStore.discoverSubFolders(server.rootMsgFolder, false);
+
+    // Create "Local Folders" if none exist yet as it's guaranteed that
+    // those exist when any account exists.
+    let localFolders;
+    try {
+      localFolders = MailServices.accounts.localFoldersServer;
+    }
+    catch (ex) {}
+
+    if (!localFolders)
+      MailServices.accounts.createLocalMailAccount();
+
+    // Save new accounts in case of a crash.
+    try {
+      MailServices.accounts.saveAccountInfo();
+    }
+    catch (ex) {
+      this.log.error("FeedUtils.createRssAccount: error on saveAccountInfo - " + ex);
+    }
+
+    this.log.debug("FeedUtils.createRssAccount: " +
+                   account.incomingServer.rootFolder.prettyName);
+
+    return account;
+  },
+
+/**
+ * Helper routine that checks our subscriptions list array and returns
+ * true if the url is already in our list.  This is used to prevent the
+ * user from subscribing to the same feed multiple times for the same server.
+ *
+ * @param  string aUrl                  - the url.
+ * @param  nsIMsgIncomingServer aServer - account server.
+ * @return boolean                      - true if exists else false.
+ */
+  feedAlreadyExists: function(aUrl, aServer) {
+    let ds = this.getSubscriptionsDS(aServer);
+    let feeds = this.getSubscriptionsList(ds);
+    let resource = this.rdf.GetResource(aUrl);
+    if (feeds.IndexOf(resource) == -1)
+      return false;
+
+    let folder = ds.GetTarget(resource, FeedUtils.FZ_DESTFOLDER, true)
+                   .QueryInterface(Ci.nsIRDFResource).ValueUTF8;
+    this.log.info("FeedUtils.feedAlreadyExists: feed url " + aUrl +
+                  " subscribed in folder url " + decodeURI(folder));
+
+    return true;
+  },
+
+/**
+ * Download a feed url on biff or get new messages.
+ *
+ * @param   nsIMsgFolder aFolder         - folder
+ * @param   nsIUrlListener aUrlListener  - feed url
+ * @param   bool aIsBiff                 - true if biff, false if manual get
+ * @param   nsIDOMWindow aMsgWindow      - window
+ */
+  downloadFeed: function(aFolder, aUrlListener, aIsBiff, aMsgWindow) {
+    if (Services.io.offline)
+      return;
+
+    // We don't yet support the ability to check for new articles while we are
+    // in the middle of subscribing to a feed. For now, abort the check for
+    // new feeds.
+    if (FeedUtils.progressNotifier.mSubscribeMode)
+    {
+      FeedUtils.log.warn("downloadFeed: Aborting RSS New Mail Check. " +
+                         "Feed subscription in progress\n");
+      return;
+    }
+
+    let allFolders = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
+    if (!aFolder.isServer) {
+      // Add the base folder; it does not get returned by ListDescendants. Do not
+      // add the account folder as it doesn't have the feedUrl property or even
+      // a msgDatabase necessarily.
+      allFolders.appendElement(aFolder, false);
+    }
+
+    aFolder.ListDescendants(allFolders);
+
+    let folder;
+    function* feeder() {
+      let numFolders = allFolders.length;
+      for (let i = 0; i < numFolders; i++) {
+        folder = allFolders.queryElementAt(i, Ci.nsIMsgFolder);
+        FeedUtils.log.debug("downloadFeed: START x/# foldername:uri - " +
+                            (i+1) + "/" + numFolders + " " +
+                            folder.name + ":" + folder.URI);
+
+        // Ensure folder's msgDatabase is openable for new message processing.
+        // If not, reparse. After the async reparse the folder will be ready
+        // for the next cycle; don't bother with a listener. Continue with
+        // the next folder, as attempting to add a message to a folder with
+        // an unavailable msgDatabase will throw later.
+        if (!FeedUtils.isMsgDatabaseOpenable(folder, true))
+          continue;
+
+        let feedUrlArray = FeedUtils.getFeedUrlsInFolder(folder);
+        // Continue if there are no feedUrls for the folder in the feeds
+        // database.  All folders in Trash are skipped.
+        if (!feedUrlArray)
+          continue;
+
+        FeedUtils.log.debug("downloadFeed: CONTINUE foldername:urlArray - " +
+                            folder.name + ":" + feedUrlArray);
+
+        FeedUtils.progressNotifier.init(aMsgWindow, false);
+
+        // We need to kick off a download for each feed.
+        let id, feed;
+        for (let url of feedUrlArray)
+        {
+          id = FeedUtils.rdf.GetResource(url);
+          feed = new Feed(id, folder.server);
+          feed.folder = folder;
+          // Bump our pending feed download count.
+          FeedUtils.progressNotifier.mNumPendingFeedDownloads++;
+          feed.download(true, FeedUtils.progressNotifier);
+          FeedUtils.log.debug("downloadFeed: DOWNLOAD feed url - " + url);
+
+          Services.tm.mainThread.dispatch(function() {
+            try {
+              let done = getFeed.next().done;
+              if (done) {
+                // Finished with all feeds in base folder and its subfolders.
+                FeedUtils.log.debug("downloadFeed: Finished with folder - " +
+                                    aFolder.name);
+                folder = null;
+                allFolders = null;
+              }
+            }
+            catch (ex) {
+              FeedUtils.log.error("downloadFeed: error - " + ex);
+              FeedUtils.progressNotifier.downloaded({name: folder.name}, 0);
+            }
+          }, Ci.nsIThread.DISPATCH_NORMAL);
+
+          yield undefined;
+        }
+      }
+    }
+
+    let getFeed = feeder();
+    try {
+      let done = getFeed.next().done;
+      if (done) {
+        // Nothing to do.
+        FeedUtils.log.debug("downloadFeed: Nothing to do in folder - " +
+                            aFolder.name);
+        folder = null;
+        allFolders = null;
+      }
+    }
+    catch (ex) {
+      FeedUtils.log.error("downloadFeed: error - " + ex);
+      FeedUtils.progressNotifier.downloaded({name: aFolder.name}, 0);
+    }
+  },
+
+/**
+ * Subscribe a new feed url.
+ *
+ * @param   string aUrl              - feed url
+ * @param   nsIMsgFolder aFolder     - folder
+ * @param   nsIDOMWindow aMsgWindow  - window
+ */
+  subscribeToFeed: function(aUrl, aFolder, aMsgWindow) {
+    // We don't support the ability to subscribe to several feeds at once yet.
+    // For now, abort the subscription if we are already in the middle of
+    // subscribing to a feed via drag and drop.
+    if (FeedUtils.progressNotifier.mNumPendingFeedDownloads)
+    {
+      FeedUtils.log.warn("subscribeToFeed: Aborting RSS subscription. " +
+                         "Feed downloads already in progress\n");
+      return;
+    }
+
+    // If aFolder is null, then use the root folder for the first RSS account.
+    if (!aFolder)
+      aFolder = FeedUtils.getAllRssServerRootFolders()[0];
+
+    // If the user has no Feeds account yet, create one.
+    if (!aFolder)
+      aFolder = FeedUtils.createRssAccount().incomingServer.rootFolder;
+
+    if (!aMsgWindow)
+    {
+      let wlist = Services.wm.getEnumerator("mail:3pane");
+      if (wlist.hasMoreElements())
+      {
+        let win = wlist.getNext().QueryInterface(Ci.nsIDOMWindow);
+        win.focus();
+        aMsgWindow = win.msgWindow;
+      }
+      else
+      {
+        // If there are no open windows, open one, pass it the URL, and
+        // during opening it will subscribe to the feed.
+        let arg = Cc["@mozilla.org/supports-string;1"].
+                  createInstance(Ci.nsISupportsString);
+        arg.data = aUrl;
+        Services.ww.openWindow(null, "chrome://messenger/content/",
+                               "_blank", "chrome,dialog=no,all", arg);
+        return;
+      }
+    }
+
+    // If aUrl is a feed url, then it is either of the form
+    // feed://example.org/feed.xml or feed:https://example.org/feed.xml.
+    // Replace feed:// with http:// per the spec, then strip off feed:
+    // for the second case.
+    aUrl = aUrl.replace(/^feed:\x2f\x2f/i, "http://");
+    aUrl = aUrl.replace(/^feed:/i, "");
+
+    // Make sure we aren't already subscribed to this feed before we attempt
+    // to subscribe to it.
+    if (FeedUtils.feedAlreadyExists(aUrl, aFolder.server))
+    {
+      aMsgWindow.statusFeedback.showStatusString(
+        FeedUtils.strings.GetStringFromName("subscribe-feedAlreadySubscribed"));
+      return;
+    }
+
+    let itemResource = FeedUtils.rdf.GetResource(aUrl);
+    let feed = new Feed(itemResource, aFolder.server);
+    feed.quickMode = feed.server.getBoolValue("quickMode");
+    feed.options = FeedUtils.getOptionsAcct(feed.server);
+
+    // If the root server, create a new folder for the feed.  The user must
+    // want us to add this subscription url to an existing RSS folder.
+    if (!aFolder.isServer)
+      feed.folder = aFolder;
+
+    FeedUtils.progressNotifier.init(aMsgWindow, true);
+    FeedUtils.progressNotifier.mNumPendingFeedDownloads++;
+    feed.download(true, FeedUtils.progressNotifier);
+  },
+
+/**
+ * Add a feed record to the feeds.rdf database and update the folder's feedUrl
+ * property.
+ *
+ * @param  object aFeed - our feed object
+ */
+  addFeed: function(aFeed) {
+    let ds = this.getSubscriptionsDS(aFeed.folder.server);
+    let feeds = this.getSubscriptionsList(ds);
+
+    // Generate a unique ID for the feed.
+    let id = aFeed.url;
+    let i = 1;
+    while (feeds.IndexOf(this.rdf.GetResource(id)) != -1 && ++i < 1000)
+      id = aFeed.url + i;
+    if (i == 1000)
+      throw new Error("FeedUtils.addFeed: couldn't generate a unique ID " +
+                      "for feed " + aFeed.url);
+
+    // Add the feed to the list.
+    id = this.rdf.GetResource(id);
+    feeds.AppendElement(id);
+    ds.Assert(id, this.RDF_TYPE, this.FZ_FEED, true);
+    ds.Assert(id, this.DC_IDENTIFIER, this.rdf.GetLiteral(aFeed.url), true);
+    if (aFeed.title)
+      ds.Assert(id, this.DC_TITLE, this.rdf.GetLiteral(aFeed.title), true);
+    ds.Assert(id, this.FZ_DESTFOLDER, aFeed.folder, true);
+    ds.Flush();
+
+    // Update folderpane.
+    this.setFolderPaneProperty(aFeed.folder, "favicon", null, "row");
+  },
+
+/**
+ * Delete a feed record from the feeds.rdf database and update the folder's
+ * feedUrl property.
+ *
+ * @param  nsIRDFResource aId           - feed url as rdf resource.
+ * @param  nsIMsgIncomingServer aServer - folder's account server.
+ * @param  nsIMsgFolder aParentFolder   - owning folder.
+ */
+  deleteFeed: function(aId, aServer, aParentFolder) {
+    let feed = new Feed(aId, aServer);
+    let ds = this.getSubscriptionsDS(aServer);
+
+    if (!feed || !ds)
+     return;
+
+    // Remove the feed from the subscriptions ds.
+    let feeds = this.getSubscriptionsList(ds);
+    let index = feeds.IndexOf(aId);
+    if (index != -1)
+      feeds.RemoveElementAt(index, false);
+
+    // Remove all assertions about the feed from the subscriptions database.
+    this.removeAssertions(ds, aId);
+    ds.Flush();
+
+    // Remove all assertions about items in the feed from the items database.
+    let itemds = this.getItemsDS(aServer);
+    feed.invalidateItems();
+    feed.removeInvalidItems(true);
+    itemds.Flush();
+
+    // Update folderpane.
+    this.setFolderPaneProperty(aParentFolder, "favicon", null, "row");
+  },
+
+/**
+ * Change an existing feed's url, as identified by FZ_FEED resource in the
+ * feeds.rdf subscriptions database.
+ *
+ * @param  obj aFeed      - the feed object
+ * @param  string aNewUrl - new url
+ * @return bool           - true if successful, else false
+ */
+  changeUrlForFeed: function(aFeed, aNewUrl) {
+    if (!aFeed || !aFeed.folder || !aNewUrl)
+      return false;
+
+    if (this.feedAlreadyExists(aNewUrl, aFeed.folder.server))
+    {
+      this.log.info("FeedUtils.changeUrlForFeed: new feed url " + aNewUrl +
+                    " already subscribed in account " + aFeed.folder.server.prettyName);
+      return false;
+    }
+
+    let title = aFeed.title;
+    let link = aFeed.link;
+    let quickMode = aFeed.quickMode;
+    let options = aFeed.options;
+
+    this.deleteFeed(this.rdf.GetResource(aFeed.url),
+                    aFeed.folder.server, aFeed.folder);
+    aFeed.resource = this.rdf.GetResource(aNewUrl)
+                             .QueryInterface(Ci.nsIRDFResource);
+    aFeed.title = title;
+    aFeed.link = link;
+    aFeed.quickMode = quickMode;
+    aFeed.options = options;
+    this.addFeed(aFeed);
+
+    let win = Services.wm.getMostRecentWindow("Mail:News-BlogSubscriptions");
+    if (win)
+      win.FeedSubscriptions.refreshSubscriptionView(aFeed.folder, aNewUrl);
+
+    return true;
+  },
+
+/**
+ * Get the list of feed urls for a folder, as identified by the FZ_DESTFOLDER
+ * tag, directly from the primary feeds.rdf subscriptions database.
+ *
+ * @param  nsIMsgFolder - the folder.
+ * @return array of urls, or null if none.
+ */
+  getFeedUrlsInFolder: function(aFolder) {
+    if (aFolder.isServer || aFolder.server.type != "rss" ||
+        aFolder.getFlag(Ci.nsMsgFolderFlags.Trash) ||
+        aFolder.getFlag(Ci.nsMsgFolderFlags.Virtual) ||
+        !aFolder.filePath.exists())
+      // There are never any feedUrls in the account/non-feed/trash/virtual
+      // folders or in a ghost folder (nonexistant on disk yet found in
+      // aFolder.subFolders).
+      return null;
+
+    let feedUrlArray = [];
+
+    // Get the list from the feeds database.
+    try {
+      let ds = this.getSubscriptionsDS(aFolder.server);
+      let enumerator = ds.GetSources(this.FZ_DESTFOLDER, aFolder, true);
+      while (enumerator.hasMoreElements())
+      {
+        let containerArc = enumerator.getNext();
+        let uri = containerArc.QueryInterface(Ci.nsIRDFResource).ValueUTF8;
+        feedUrlArray.push(uri);
+      }
+    }
+    catch(ex)
+    {
+      this.log.error("getFeedUrlsInFolder: feeds.rdf db error - " + ex);
+      this.log.error("getFeedUrlsInFolder: feeds.rdf db error for account - " +
+                     aFolder.server.serverURI + " : " + aFolder.server.prettyName);
+    }
+
+    return feedUrlArray.length ? feedUrlArray : null;
+  },
+
+/**
+ * Check if the folder's msgDatabase is openable, reparse if desired.
+ *
+ * @param  nsIMsgFolder aFolder - the folder
+ * @param  boolean aReparse     - reparse if true
+ * @return boolean              - true if msgDb is available, else false
+ */
+  isMsgDatabaseOpenable: function(aFolder, aReparse) {
+    let msgDb;
+    try {
+      msgDb = Cc["@mozilla.org/msgDatabase/msgDBService;1"]
+                .getService(Ci.nsIMsgDBService).openFolderDB(aFolder, true);
+    }
+    catch (ex) {}
+
+    if (msgDb)
+      return true;
+
+    if (!aReparse)
+      return false;
+
+    // Force a reparse.
+    FeedUtils.log.debug("checkMsgDb: rebuild msgDatabase for " +
+                        aFolder.name + " - " + aFolder.filePath.path);
+    try {
+      // Ignore error returns.
+      aFolder.QueryInterface(Ci.nsIMsgLocalMailFolder)
+             .getDatabaseWithReparse(null, null);
+    }
+    catch (ex) {}
+
+    return false;
+  },
+
+/**
+ * Update a folderpane cached property.
+ *
+ * @param  nsIMsgFolder aFolder   - folder
+ * @param  string aProperty       - property
+ * @param  string aValue          - value
+ * @param  string aInvalidate     - "row" = folder's row.
+ *                                  "all" = all rows.
+ */
+  setFolderPaneProperty: function(aFolder, aProperty, aValue, aInvalidate) {
+    let win = Services.wm.getMostRecentWindow("mail:3pane");
+    if (!aFolder || !aProperty || !win || !("gFolderTreeView" in win))
+      return;
+
+    win.gFolderTreeView.setFolderCacheProperty(aFolder, aProperty, aValue);
+
+    if (aInvalidate == "all") {
+      win.gFolderTreeView._tree.invalidate();
+    }
+    if (aInvalidate == "row") {
+      let row = win.gFolderTreeView.getIndexOfFolder(aFolder);
+      win.gFolderTreeView._tree.invalidateRow(row);
+    }
+  },
+
+/**
+ * Get the favicon for a feed folder subscription url (first one) or a feed
+ * message url. The favicon service caches it in memory if places history is
+ * not enabled.
+ *
+ * @param  nsIMsgFolder aFolder - the feed folder or null if aUrl
+ * @param  string aUrl          - a url (feed, message, other) or null if aFolder
+ * @param  string aIconUrl      - the icon url if already determined, else null
+ * @param  nsIDOMWindow aWindow - null if requesting url without setting it
+ * @param  function aCallback   - null or callback
+ * @return string               - the favicon url or empty string
+ */
+  getFavicon: function(aFolder, aUrl, aIconUrl, aWindow, aCallback) {
+    // On any error, cache an empty string to show the default favicon, and
+    // don't try anymore in this session.
+    let useDefaultFavicon = (() => {
+      if (aCallback)
+        aCallback("");
+      return "";
+    });
+
+    if (!Services.prefs.getBoolPref("browser.chrome.site_icons") ||
+        !Services.prefs.getBoolPref("browser.chrome.favicons"))
+      return useDefaultFavicon();
+
+    if (aIconUrl != null)
+      return aIconUrl;
+
+    let onLoadSuccess = (aEvent => {
+      let iconUri = Services.io.newURI(aEvent.target.src, null, null);
+      aWindow.specialTabs.mFaviconService.setAndFetchFaviconForPage(
+        uri, iconUri, false,
+        aWindow.specialTabs.mFaviconService.FAVICON_LOAD_NON_PRIVATE,
+        null, Services.scriptSecurityManager.getSystemPrincipal());
+
+      if (aCallback)
+        aCallback(iconUri.spec);
+    });
+
+    let onLoadError = (aEvent => {
+      useDefaultFavicon();
+      let url = aEvent.target.src;
+      aWindow.specialTabs.getFaviconFromPage(url, aCallback);
+    });
+
+    let url = aUrl;
+    if (!url)
+    {
+      // Get the proposed iconUrl from the folder's first subscribed feed's
+      // <link>.
+      if (!aFolder)
+        return useDefaultFavicon();
+
+      let feedUrls = this.getFeedUrlsInFolder(aFolder);
+      url = feedUrls ? feedUrls[0] : null;
+      if (!url)
+        return useDefaultFavicon();
+    }
+
+    if (aFolder)
+    {
+      let ds = this.getSubscriptionsDS(aFolder.server);
+      let resource = this.rdf.GetResource(url).QueryInterface(Ci.nsIRDFResource);
+      let feedLinkUrl = ds.GetTarget(resource, this.RSS_LINK, true);
+      feedLinkUrl = feedLinkUrl ?
+                      feedLinkUrl.QueryInterface(Ci.nsIRDFLiteral).Value : null;
+      url = feedLinkUrl && feedLinkUrl.startsWith("http") ? feedLinkUrl : url;
+    }
+
+    let uri, iconUri;
+    try {
+      uri = Services.io.newURI(url, null, null);
+      iconUri = Services.io.newURI(uri.prePath + "/favicon.ico", null, null);
+    }
+    catch (ex) {
+      return useDefaultFavicon();
+    }
+
+    if (!aWindow)
+      return iconUri.spec;
+
+    aWindow.specialTabs.loadFaviconImageNode(onLoadSuccess, onLoadError,
+                                             iconUri.spec);
+    // Cache the favicon url initially.
+    if (aCallback)
+      aCallback(iconUri.spec);
+
+    return iconUri.spec;
+  },
+
+/**
+ * Update the feeds.rdf database for rename and move/copy folder name changes.
+ *
+ * @param  nsIMsgFolder aFolder      - the folder, new if rename or target of
+ *                                      move/copy folder (new parent)
+ * @param  nsIMsgFolder aOrigFolder  - original folder
+ * @param  string aAction            - "move" or "copy" or "rename"
+ */
+  updateSubscriptionsDS: function(aFolder, aOrigFolder, aAction) {
+    this.log.debug("FeedUtils.updateSubscriptionsDS: " +
+                   "\nfolder changed - " + aAction +
+                   "\nnew folder  - " + aFolder.filePath.path +
+                   "\norig folder - " + aOrigFolder.filePath.path);
+
+    if (aFolder.server.type != "rss" || FeedUtils.isInTrash(aOrigFolder))
+      // Target not a feed account folder; nothing to do, or move/rename in
+      // trash; no subscriptions already.
+      return;
+
+    let newFolder = aFolder;
+    let newParentURI = aFolder.URI;
+    let origParentURI = aOrigFolder.URI;
+    if (aAction == "move" || aAction == "copy")
+    {
+      // Get the new folder. Don't process the entire parent (new dest folder)!
+      newFolder = aFolder.getChildNamed(aOrigFolder.name);
+      origParentURI = aOrigFolder.parent ? aOrigFolder.parent.URI :
+                                           aOrigFolder.rootFolder.URI;
+    }
+
+    this.updateFolderChangeInFeedsDS(newFolder, aOrigFolder, null, null);
+
+    // There may be subfolders, but we only get a single notification; iterate
+    // over all descendent folders of the folder whose location has changed.
+    let newSubFolders = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
+    newFolder.ListDescendants(newSubFolders);
+    for (let i = 0; i < newSubFolders.length; i++)
+    {
+      let newSubFolder = newSubFolders.queryElementAt(i, Ci.nsIMsgFolder);
+      FeedUtils.updateFolderChangeInFeedsDS(newSubFolder, aOrigFolder,
+                                            newParentURI, origParentURI)
+    }
+  },
+
+/**
+ * Update the feeds.rdf database with the new folder's or subfolder's location
+ * for rename and move/copy name changes. The feeds.rdf subscriptions db is
+ * also synced on cross account folder copies. Note that if a copied folder's
+ * url exists in the new account, its active subscription will be switched to
+ * the folder being copied, to enforce the one unique url per account design.
+ *
+ * @param  nsIMsgFolder aFolder      - new folder
+ * @param  nsIMsgFolder aOrigFolder  - original folder
+ * @param  string aNewAncestorURI    - for subfolders, ancestor new folder
+ * @param  string aOrigAncestorURI   - for subfolders, ancestor original folder
+ */
+  updateFolderChangeInFeedsDS: function(aFolder, aOrigFolder,
+                                        aNewAncestorURI, aOrigAncestorURI) {
+    this.log.debug("updateFolderChangeInFeedsDS: " +
+                   "\naFolder       - " + aFolder.URI +
+                   "\naOrigFolder   - " + aOrigFolder.URI +
+                   "\naOrigAncestor - " + aOrigAncestorURI +
+                   "\naNewAncestor  - " + aNewAncestorURI);
+
+    // Get the original folder's URI.
+    let folderURI = aFolder.URI;
+    let origURI = aNewAncestorURI && aOrigAncestorURI ?
+                    folderURI.replace(aNewAncestorURI, aOrigAncestorURI) :
+                    aOrigFolder.URI;
+    let origFolderRes = this.rdf.GetResource(origURI);
+    this.log.debug("updateFolderChangeInFeedsDS: urls origURI  - " + origURI);
+    // Get the original folder's url list from the feeds database.
+    let feedUrlArray = [];
+    let dsSrc = this.getSubscriptionsDS(aOrigFolder.server);
+    try {
+      let enumerator = dsSrc.GetSources(this.FZ_DESTFOLDER, origFolderRes, true);
+      while (enumerator.hasMoreElements())
+      {
+        let containerArc = enumerator.getNext();
+        let uri = containerArc.QueryInterface(Ci.nsIRDFResource).ValueUTF8;
+        feedUrlArray.push(uri);
+      }
+    }
+    catch(ex)
+    {
+      this.log.error("updateFolderChangeInFeedsDS: feeds.rdf db error for account - " +
+                     aOrigFolder.server.prettyName + " : " + ex);
+    }
+
+    if (!feedUrlArray.length)
+    {
+      this.log.debug("updateFolderChangeInFeedsDS: no feedUrls in this folder");
+      return;
+    }
+
+    let id, resource, node;
+    let ds = this.getSubscriptionsDS(aFolder.server);
+    for (let feedUrl of feedUrlArray)
+    {
+      this.log.debug("updateFolderChangeInFeedsDS: feedUrl - " + feedUrl);
+
+      id = this.rdf.GetResource(feedUrl);
+      // If move to trash, unsubscribe.
+      if (this.isInTrash(aFolder))
+      {
+        this.deleteFeed(id, aFolder.server, aFolder);
+      }
+      else
+      {
+        resource = this.rdf.GetResource(aFolder.URI);
+        // Get the node for the current folder URI.
+        node = ds.GetTarget(id, this.FZ_DESTFOLDER, true);
+        if (node)
+        {
+          ds.Change(id, this.FZ_DESTFOLDER, node, resource);
+        }
+        else
+        {
+          // If adding a new feed it's a cross account action; make sure to
+          // preserve all properties from the original datasource where
+          // available. Otherwise use the new folder's name and default server
+          // quickMode; preserve link and options.
+          let feedTitle = dsSrc.GetTarget(id, this.DC_TITLE, true);
+          feedTitle = feedTitle ? feedTitle.QueryInterface(Ci.nsIRDFLiteral).Value :
+                                  resource.name;
+          let link = dsSrc.GetTarget(id, FeedUtils.RSS_LINK, true);
+          link = link ? link.QueryInterface(Ci.nsIRDFLiteral).Value : "";
+          let quickMode = dsSrc.GetTarget(id, this.FZ_QUICKMODE, true);
+          quickMode = quickMode ? quickMode.QueryInterface(Ci.nsIRDFLiteral).Value :
+                                  null;
+          quickMode = quickMode == "true" ? true :
+                      quickMode == "false" ? false :
+                      aFeed.folder.server.getBoolValue("quickMode");
+          let options = dsSrc.GetTarget(id, this.FZ_OPTIONS, true);
+          options = options ? JSON.parse(options.QueryInterface(Ci.nsIRDFLiteral).Value) :
+                              this.optionsTemplate;
+
+          let feed = new Feed(id, aFolder.server);
+          feed.folder = aFolder;
+          feed.title = feedTitle;
+          feed.link = link;
+          feed.quickMode = quickMode;
+          feed.options = options;
+          this.addFeed(feed);
+        }
+      }
+    }
+
+    ds.Flush();
+  },
+
+/**
+ * When subscribing to feeds by dnd on, or adding a url to, the account
+ * folder (only), or creating folder structure via opml import, a subfolder is
+ * autocreated and thus the derived/given name must be sanitized to prevent
+ * filesystem errors. Hashing invalid chars based on OS rather than filesystem
+ * is not strictly correct.
+ *
+ * @param  nsIMsgFolder aParentFolder - parent folder
+ * @param  string       aProposedName - proposed name
+ * @param  string       aDefaultName  - default name if proposed sanitizes to
+ *                                      blank, caller ensures sane value
+ * @param  bool         aUnique       - if true, return a unique indexed name.
+ * @return string                     - sanitized unique name
+ */
+  getSanitizedFolderName: function(aParentFolder, aProposedName, aDefaultName, aUnique) {
+    // Clean up the name for the strictest fs (fat) and to ensure portability.
+    // 1) Replace line breaks and tabs '\n\r\t' with a space.
+    // 2) Remove nonprintable ascii.
+    // 3) Remove invalid win chars '* | \ / : < > ? "'.
+    // 4) Remove all '.' as starting/ending with one is trouble on osx/win.
+    // 5) No leading/trailing spaces.
+    let folderName = aProposedName.replace(/[\n\r\t]+/g, " ")
+                                  .replace(/[\x00-\x1F]+/g, "")
+                                  .replace(/[*|\\\/:<>?"]+/g, "")
+                                  .replace(/[\.]+/g, "")
+                                  .trim();
+
+    // Prefix with __ if name is:
+    // 1) a reserved win filename.
+    // 2) an undeletable/unrenameable special folder name (bug 259184).
+    if (folderName.toUpperCase()
+                  .match(/^COM\d$|^LPT\d$|^CON$|PRN$|^AUX$|^NUL$|^CLOCK\$/) ||
+        folderName.toUpperCase()
+                  .match(/^INBOX$|^OUTBOX$|^UNSENT MESSAGES$|^TRASH$/))
+      folderName = "__" + folderName;
+
+    // Use a default if no name is found.
+    if (!folderName)
+      folderName = aDefaultName;
+
+    if (!aUnique)
+      return folderName;
+
+    // Now ensure the folder name is not a dupe; if so append index.
+    let folderNameBase = folderName;
+    let i = 2;
+    while (aParentFolder.containsChildNamed(folderName))
+    {
+      folderName = folderNameBase + "-" + i++;
+    }
+
+    return folderName;
+  },
+
+/**
+ * This object will contain all feed specific properties.
+ */
+  _optionsDefault: {
+    version: 1,
+    // Autotag and <category> handling options.
+    category: {
+      enabled: false,
+      prefixEnabled: false,
+      prefix: null,
+    }
+  },
+
+  get optionsTemplate()
+  {
+    // Copy the object.
+    return JSON.parse(JSON.stringify(this._optionsDefault));
+  },
+
+  getOptionsAcct: function(aServer)
+  {
+    let optionsAcctPref = "mail.server." + aServer.key + ".feed_options";
+    try {
+      return JSON.parse(Services.prefs.getCharPref(optionsAcctPref));
+    }
+    catch (ex) {
+      this.setOptionsAcct(aServer, this._optionsDefault);
+      return JSON.parse(Services.prefs.getCharPref(optionsAcctPref));
+    }
+  },
+
+  setOptionsAcct: function(aServer, aOptions)
+  {
+    let optionsAcctPref = "mail.server." + aServer.key + ".feed_options";
+    let newOptions = this.newOptions(aOptions);
+    Services.prefs.setCharPref(optionsAcctPref, JSON.stringify(newOptions));
+  },
+
+  newOptions: function(aOptions)
+  {
+    // TODO: Clean options, so that only keys in the active template are stored.
+    return aOptions;
+  },
+
+  getSubscriptionsDS: function(aServer) {
+    if (this[aServer.serverURI] && this[aServer.serverURI]["FeedsDS"])
+      return this[aServer.serverURI]["FeedsDS"];
+
+    let file = this.getSubscriptionsFile(aServer);
+    let url = Services.io.getProtocolHandler("file").
+                          QueryInterface(Ci.nsIFileProtocolHandler).
+                          getURLSpecFromFile(file);
+
+    // GetDataSourceBlocking has a cache, so it's cheap to do this again
+    // once we've already done it once.
+    let ds = this.rdf.GetDataSourceBlocking(url);
+
+    if (!ds)
+      throw new Error("FeedUtils.getSubscriptionsDS: can't get feed " +
+                      "subscriptions data source - " + url);
+
+    if (!this[aServer.serverURI])
+      this[aServer.serverURI] = {};
+    return this[aServer.serverURI]["FeedsDS"] =
+             ds.QueryInterface(Ci.nsIRDFRemoteDataSource);
+  },
+
+  getSubscriptionsList: function(aDataSource) {
+    let list = aDataSource.GetTarget(this.FZ_ROOT, this.FZ_FEEDS, true);
+    list = list.QueryInterface(Ci.nsIRDFResource);
+    list = this.rdfContainerUtils.MakeSeq(aDataSource, list);
+    return list;
+  },
+
+  getSubscriptionsFile: function(aServer) {
+    aServer.QueryInterface(Ci.nsIRssIncomingServer);
+    let file = aServer.subscriptionsDataSourcePath;
+
+    // If the file doesn't exist, create it.
+    if (!file.exists())
+      this.createFile(file, this.FEEDS_TEMPLATE);
+
+    return file;
+  },
+
+  FEEDS_TEMPLATE: '<?xml version="1.0"?>\n' +
+    '<RDF:RDF xmlns:dc="http://purl.org/dc/elements/1.1/"\n' +
+    '         xmlns:fz="urn:forumzilla:"\n' +
+    '         xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n' +
+    '  <RDF:Description about="urn:forumzilla:root">\n' +
+    '    <fz:feeds>\n' +
+    '      <RDF:Seq>\n' +
+    '      </RDF:Seq>\n' +
+    '    </fz:feeds>\n' +
+    '  </RDF:Description>\n' +
+    '</RDF:RDF>\n',
+
+  getItemsDS: function(aServer) {
+    if (this[aServer.serverURI] && this[aServer.serverURI]["FeedItemsDS"])
+      return this[aServer.serverURI]["FeedItemsDS"];
+
+    let file = this.getItemsFile(aServer);
+    let url = Services.io.getProtocolHandler("file").
+                          QueryInterface(Ci.nsIFileProtocolHandler).
+                          getURLSpecFromFile(file);
+
+    // GetDataSourceBlocking has a cache, so it's cheap to do this again
+    // once we've already done it once.
+    let ds = this.rdf.GetDataSourceBlocking(url);
+    if (!ds)
+      throw new Error("FeedUtils.getItemsDS: can't get feed items " +
+                      "data source - " + url);
+
+    // Note that it this point the datasource may not be loaded yet.
+    // You have to QueryInterface it to nsIRDFRemoteDataSource and check
+    // its "loaded" property to be sure.  You can also attach an observer
+    // which will get notified when the load is complete.
+    if (!this[aServer.serverURI])
+      this[aServer.serverURI] = {};
+    return this[aServer.serverURI]["FeedItemsDS"] =
+             ds.QueryInterface(Ci.nsIRDFRemoteDataSource);
+  },
+
+  getItemsFile: function(aServer) {
+    aServer.QueryInterface(Ci.nsIRssIncomingServer);
+    let file = aServer.feedItemsDataSourcePath;
+
+    // If the file doesn't exist, create it.
+    if (!file.exists()) {
+      this.createFile(file, this.FEEDITEMS_TEMPLATE);
+      return file;
+    }
+
+    // If feeditems.rdf is not sane, duplicate messages will occur repeatedly
+    // until the file is corrected; check that the file is valid XML. This is
+    // done lazily only once in a session.
+    let fileUrl = Services.io.getProtocolHandler("file")
+                             .QueryInterface(Ci.nsIFileProtocolHandler)
+                             .getURLSpecFromFile(file);
+    let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
+                    .createInstance(Ci.nsIXMLHttpRequest);
+    request.open("GET", fileUrl, false);
+    request.responseType = "document";
+    request.send();
+    let dom = request.responseXML;
+    if (dom instanceof Ci.nsIDOMXMLDocument &&
+        dom.documentElement.namespaceURI != this.MOZ_PARSERERROR_NS)
+      return file;
+
+    // Error on the file. Rename it and create a new one.
+    this.log.debug("FeedUtils.getItemsFile: error in feeditems.rdf");
+    let errName = "feeditems_error_" +
+                  (new Date().toISOString()).replace(/\D/g, "") + ".rdf";
+    file.moveTo(file.parent, errName);
+    file = aServer.feedItemsDataSourcePath;
+    this.createFile(file, this.FEEDITEMS_TEMPLATE);
+    this.log.error("FeedUtils.getItemsFile: error in feeditems.rdf in account '" +
+                   aServer.prettyName + "'; the file has been moved to " +
+                   errName + " and a new file has been created. Recent messages " +
+                   "may be duplicated.");
+    return file;
+  },
+
+  FEEDITEMS_TEMPLATE: '<?xml version="1.0"?>\n' +
+    '<RDF:RDF xmlns:dc="http://purl.org/dc/elements/1.1/"\n' +
+    '         xmlns:fz="urn:forumzilla:"\n' +
+    '         xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n' +
+    '</RDF:RDF>\n',
+
+  createFile: function(aFile, aTemplate) {
+    let fos = FileUtils.openSafeFileOutputStream(aFile);
+    fos.write(aTemplate, aTemplate.length);
+    FileUtils.closeSafeFileOutputStream(fos);
+  },
+
+  getParentTargetForChildResource: function(aChildResource, aParentTarget,
+                                            aServer) {
+    // Generic get feed property, based on child value. Assumes 1 unique
+    // child value with 1 unique parent, valid for feeds.rdf structure.
+    let ds = this.getSubscriptionsDS(aServer);
+    let childRes = this.rdf.GetResource(aChildResource);
+    let parent = null;
+
+    let arcsIn = ds.ArcLabelsIn(childRes);
+    while (arcsIn.hasMoreElements())
+    {
+      let arc = arcsIn.getNext();
+      if (arc instanceof Ci.nsIRDFResource)
+      {
+        parent = ds.GetSource(arc, childRes, true);
+        parent = parent.QueryInterface(Ci.nsIRDFResource);
+        break;
+      }
+    }
+
+    if (parent)
+    {
+      let resource = this.rdf.GetResource(parent.Value);
+      return ds.GetTarget(resource, aParentTarget, true);
+    }
+
+    return null;
+  },
+
+  removeAssertions: function(aDataSource, aResource) {
+    let properties = aDataSource.ArcLabelsOut(aResource);
+    let property;
+    while (properties.hasMoreElements())
+    {
+      property = properties.getNext();
+      let values = aDataSource.GetTargets(aResource, property, true);
+      let value;
+      while (values.hasMoreElements())
+      {
+        value = values.getNext();
+        aDataSource.Unassert(aResource, property, value, true);
+      }
+    }
+  },
+
+/**
+ * Dragging something from somewhere.  It may be a nice x-moz-url or from a
+ * browser or app that provides a less nice dataTransfer object in the event.
+ * Extract the url and if it passes the scheme test, try to subscribe.
+ *
+ * @param  nsIDOMDataTransfer aDataTransfer  - the dnd event's dataTransfer.
+ * @return nsIURI uri                        - a uri if valid, null if none.
+ */
+  getFeedUriFromDataTransfer: function(aDataTransfer) {
+    let dt = aDataTransfer;
+    let types = ["text/x-moz-url-data", "text/x-moz-url"];
+    let validUri = false;
+    let uri = Cc["@mozilla.org/network/standard-url;1"].
+              createInstance(Ci.nsIURI);
+
+    if (dt.getData(types[0]))
+    {
+      // The url is the data.
+      uri.spec = dt.mozGetDataAt(types[0], 0);
+      validUri = this.isValidScheme(uri);
+      this.log.trace("getFeedUriFromDataTransfer: dropEffect:type:value - " +
+                     dt.dropEffect + " : " + types[0] + " : " + uri.spec);
+    }
+    else if (dt.getData(types[1]))
+    {
+      // The url is the first part of the data, the second part is random.
+      uri.spec = dt.mozGetDataAt(types[1], 0).split("\n")[0];
+      validUri = this.isValidScheme(uri);
+      this.log.trace("getFeedUriFromDataTransfer: dropEffect:type:value - " +
+                     dt.dropEffect + " : " + types[0] + " : " + uri.spec);
+    }
+    else
+    {
+      // Go through the types and see if there's a url; get the first one.
+      for (let i = 0; i < dt.types.length; i++) {
+        let spec = dt.mozGetDataAt(dt.types[i], 0);
+        this.log.trace("getFeedUriFromDataTransfer: dropEffect:index:type:value - " +
+                       dt.dropEffect + " : " + i + " : " + dt.types[i] + " : "+spec);
+        try {
+          uri.spec = spec;
+          validUri = this.isValidScheme(uri);
+        }
+        catch(ex) {}
+
+        if (validUri)
+          break;
+      };
+    }
+
+    return validUri ? uri : null;
+  },
+
+  /**
+   * Returns security/certificate/network error details for an XMLHTTPRequest.
+   *
+   * @param  XMLHTTPRequest xhr - The xhr request.
+   * @return array [string errType, string errName] (null if not determined).
+   */
+  createTCPErrorFromFailedXHR: function(xhr) {
+    let status = xhr.channel.QueryInterface(Ci.nsIRequest).status;
+
+    let errType = null;
+    let errName = null;
+    if ((status & 0xff0000) === 0x5a0000) {
+      // Security module.
+      const nsINSSErrorsService = Ci.nsINSSErrorsService;
+      let nssErrorsService = Cc["@mozilla.org/nss_errors_service;1"]
+                               .getService(nsINSSErrorsService);
+      let errorClass;
+
+      // getErrorClass()) will throw a generic NS_ERROR_FAILURE if the error
+      // code is somehow not in the set of covered errors.
+      try {
+        errorClass = nssErrorsService.getErrorClass(status);
+      }
+      catch (ex) {
+        // Catch security protocol exception.
+        errorClass = "SecurityProtocol";
+      }
+
+      if (errorClass == nsINSSErrorsService.ERROR_CLASS_BAD_CERT) {
+        errType = "SecurityCertificate";
+      }
+      else {
+        errType = "SecurityProtocol";
+      }
+
+      // NSS_SEC errors (happen below the base value because of negative vals).
+      if ((status & 0xffff) < Math.abs(nsINSSErrorsService.NSS_SEC_ERROR_BASE)) {
+        // The bases are actually negative, so in our positive numeric space,
+        // we need to subtract the base off our value.
+        let nssErr = Math.abs(nsINSSErrorsService.NSS_SEC_ERROR_BASE) - (status & 0xffff);
+
+        switch (nssErr) {
+          case 11: // SEC_ERROR_EXPIRED_CERTIFICATE, sec(11)
+            errName = "SecurityExpiredCertificateError";
+            break;
+          case 12: // SEC_ERROR_REVOKED_CERTIFICATE, sec(12)
+            errName = "SecurityRevokedCertificateError";
+            break;
+
+          // Per bsmith, we will be unable to tell these errors apart very soon,
+          // so it makes sense to just folder them all together already.
+          case 13: // SEC_ERROR_UNKNOWN_ISSUER, sec(13)
+          case 20: // SEC_ERROR_UNTRUSTED_ISSUER, sec(20)
+          case 21: // SEC_ERROR_UNTRUSTED_CERT, sec(21)
+          case 36: // SEC_ERROR_CA_CERT_INVALID, sec(36)
+            errName = "SecurityUntrustedCertificateIssuerError";
+            break;
+          case 90: // SEC_ERROR_INADEQUATE_KEY_USAGE, sec(90)
+            errName = "SecurityInadequateKeyUsageError";
+            break;
+          case 176: // SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED, sec(176)
+            errName = "SecurityCertificateSignatureAlgorithmDisabledError";
+            break;
+          default:
+            errName = "SecurityError";
+            break;
+        }
+      }
+      else {
+        // Calculating the difference.
+        let sslErr = Math.abs(nsINSSErrorsService.NSS_SSL_ERROR_BASE) - (status & 0xffff);
+
+        switch (sslErr) {
+          case 3: // SSL_ERROR_NO_CERTIFICATE, ssl(3)
+            errName = "SecurityNoCertificateError";
+            break;
+          case 4: // SSL_ERROR_BAD_CERTIFICATE, ssl(4)
+            errName = "SecurityBadCertificateError";
+            break;
+          case 8: // SSL_ERROR_UNSUPPORTED_CERTIFICATE_TYPE, ssl(8)
+            errName = "SecurityUnsupportedCertificateTypeError";
+            break;
+          case 9: // SSL_ERROR_UNSUPPORTED_VERSION, ssl(9)
+            errName = "SecurityUnsupportedTLSVersionError";
+            break;
+          case 12: // SSL_ERROR_BAD_CERT_DOMAIN, ssl(12)
+            errName = "SecurityCertificateDomainMismatchError";
+            break;
+          default:
+            errName = "SecurityError";
+            break;
+        }
+      }
+    }
+    else {
+      errType = "Network";
+      switch (status) {
+        // Connect to host:port failed.
+        case 0x804B000C: // NS_ERROR_CONNECTION_REFUSED, network(13)
+          errName = "ConnectionRefusedError";
+          break;
+        // network timeout error.
+        case 0x804B000E: // NS_ERROR_NET_TIMEOUT, network(14)
+          errName = "NetworkTimeoutError";
+          break;
+        // Hostname lookup failed.
+        case 0x804B001E: // NS_ERROR_UNKNOWN_HOST, network(30)
+          errName = "DomainNotFoundError";
+          break;
+        case 0x804B0047: // NS_ERROR_NET_INTERRUPT, network(71)
+          errName = "NetworkInterruptError";
+          break;
+        default:
+          errName = "NetworkError";
+          break;
+      }
+    }
+
+    return [errType, errName];
+  },
+
+/**
+ * Returns if a uri/url is valid to subscribe.
+ *
+ * @param  nsIURI aUri or string aUrl  - the Uri/Url.
+ * @return boolean                     - true if a valid scheme, false if not.
+ */
+  _validSchemes: ["http", "https"],
+  isValidScheme: function(aUri) {
+    if (!(aUri instanceof Ci.nsIURI)) {
+      try {
+        aUri = Services.io.newURI(aUri, null, null);
+      }
+      catch (ex) {
+        return false;
+      }
+    }
+
+    return (this._validSchemes.indexOf(aUri.scheme) != -1);
+  },
+
+/**
+ * Is a folder Trash or in Trash.
+ *
+ * @param  nsIMsgFolder aFolder   - the folder.
+ * @return boolean                - true if folder is Trash else false.
+ */
+  isInTrash: function(aFolder) {
+    let trashFolder =
+        aFolder.rootFolder.getFolderWithFlags(Ci.nsMsgFolderFlags.Trash);
+    if (trashFolder &&
+        (trashFolder == aFolder || trashFolder.isAncestorOf(aFolder)))
+      return true;
+    return false;
+  },
+
+/**
+ * Return a folder path string constructed from individual folder UTF8 names
+ * stored as properties (not possible hashes used to construct disk foldername).
+ *
+ * @param  nsIMsgFolder aFolder     - the folder.
+ * @return string prettyName | null - name or null if not a disk folder.
+ */
+  getFolderPrettyPath: function(aFolder) {
+    let msgFolder = MailUtils.getFolderForURI(aFolder.URI, true);
+    if (!msgFolder)
+      // Not a real folder uri.
+      return null;
+
+    if (msgFolder.URI == msgFolder.server.serverURI)
+      return msgFolder.server.prettyName;
+
+    // Server part first.
+    let pathParts = [msgFolder.server.prettyName];
+    let rawPathParts = msgFolder.URI.split(msgFolder.server.serverURI + "/");
+    let folderURI = msgFolder.server.serverURI;
+    rawPathParts = rawPathParts[1].split("/");
+    for (let i = 0; i < rawPathParts.length - 1; i++)
+    {
+      // Two or more folders deep parts here.
+      folderURI += "/" + rawPathParts[i];
+      msgFolder = MailUtils.getFolderForURI(folderURI, true);
+      pathParts.push(msgFolder.name);
+    }
+
+    // Leaf folder last.
+    pathParts.push(aFolder.name);
+    return pathParts.join("/");
+  },
+
+/**
+ * Date validator for feeds.
+ *
+ * @param  string aDate - date string
+ * @return boolean      - true if passes regex test, false if not
+ */
+  isValidRFC822Date: function(aDate)
+  {
+    const FZ_RFC822_RE = "^(((Mon)|(Tue)|(Wed)|(Thu)|(Fri)|(Sat)|(Sun)), *)?\\d\\d?" +
+    " +((Jan)|(Feb)|(Mar)|(Apr)|(May)|(Jun)|(Jul)|(Aug)|(Sep)|(Oct)|(Nov)|(Dec))" +
+    " +\\d\\d(\\d\\d)? +\\d\\d:\\d\\d(:\\d\\d)? +(([+-]?\\d\\d\\d\\d)|(UT)|(GMT)" +
+    "|(EST)|(EDT)|(CST)|(CDT)|(MST)|(MDT)|(PST)|(PDT)|\\w)$";
+    let regex = new RegExp(FZ_RFC822_RE);
+    return regex.test(aDate);
+  },
+
+/**
+ * Create rfc5322 date.
+ *
+ * @param  [string] aDateString - optional date string; if null or invalid
+ *                                 date, get the current datetime.
+ * @return string               - an rfc5322 date string
+ */
+  getValidRFC5322Date: function(aDateString)
+  {
+    let d = new Date(aDateString || new Date().getTime());
+    d = isNaN(d.getTime()) ? new Date() : d;
+    return jsmime.headeremitter.emitStructuredHeader("Date", d, {}).substring(6).trim();
+  },
+
+  // Progress glue code.  Acts as a go between the RSS back end and the mail
+  // window front end determined by the aMsgWindow parameter passed into
+  // nsINewsBlogFeedDownloader.
+  progressNotifier: {
+    mSubscribeMode: false,
+    mMsgWindow: null,
+    mStatusFeedback: null,
+    mFeeds: {},
+    // Keeps track of the total number of feeds we have been asked to download.
+    // This number may not reflect the # of entries in our mFeeds array because
+    // not all feeds may have reported in for the first time.
+    mNumPendingFeedDownloads: 0,
+
+    init: function(aMsgWindow, aSubscribeMode)
+    {
+      if (!this.mNumPendingFeedDownloads)
+      {
+        // If we aren't already in the middle of downloading feed items.
+        this.mStatusFeedback = aMsgWindow ? aMsgWindow.statusFeedback : null;
+        this.mSubscribeMode = aSubscribeMode;
+        this.mMsgWindow = aMsgWindow;
+
+        if (this.mStatusFeedback)
+        {
+          this.mStatusFeedback.startMeteors();
+          this.mStatusFeedback.showStatusString(
+            FeedUtils.strings.GetStringFromName(
+              aSubscribeMode ? "subscribe-validating-feed" :
+                               "newsblog-getNewMsgsCheck"));
+        }
+      }
+    },
+
+    downloaded: function(feed, aErrorCode)
+    {
+      let location = feed.folder ? feed.folder.filePath.path : "";
+      FeedUtils.log.debug("downloaded: "+
+                          (this.mSubscribeMode ? "Subscribe " : "Update ") +
+                          "errorCode:feedName:folder - " +
+                          aErrorCode + " : " + feed.name + " : " + location);
+      if (this.mSubscribeMode)
+      {
+        if (aErrorCode == FeedUtils.kNewsBlogSuccess)
+        {
+          // Add the feed to the databases.
+          FeedUtils.addFeed(feed);
+
+          // Nice touch: select the folder that now contains the newly subscribed
+          // feed.  This is particularly nice if we just finished subscribing
+          // to a feed URL that the operating system gave us.
+          this.mMsgWindow.windowCommands.selectFolder(feed.folder.URI);
+
+          // Check for an existing feed subscriptions window and update it.
+          let subscriptionsWindow =
+              Services.wm.getMostRecentWindow("Mail:News-BlogSubscriptions");
+          if (subscriptionsWindow)
+            subscriptionsWindow.FeedSubscriptions.
+                                FolderListener.folderAdded(feed.folder);
+        }
+        else
+        {
+          // Non success.  Remove intermediate traces from the feeds database.
+          if (feed && feed.url && feed.server)
+            FeedUtils.deleteFeed(FeedUtils.rdf.GetResource(feed.url),
+                                 feed.server,
+                                 feed.server.rootFolder);
+        }
+      }
+
+      if (feed.folder && aErrorCode != FeedUtils.kNewsBlogFeedIsBusy)
+        // Free msgDatabase after new mail biff is set; if busy let the next
+        // result do the freeing.  Otherwise new messages won't be indicated.
+        feed.folder.msgDatabase = null;
+
+      let message = "";
+      if (feed.folder)
+        location = FeedUtils.getFolderPrettyPath(feed.folder) + " -> ";
+      switch (aErrorCode) {
+        case FeedUtils.kNewsBlogSuccess:
+        case FeedUtils.kNewsBlogFeedIsBusy:
+          message = "";
+          break;
+        case FeedUtils.kNewsBlogNoNewItems:
+          message = feed.url+". " +
+                    FeedUtils.strings.GetStringFromName(
+                      "newsblog-noNewArticlesForFeed");
+          break;
+        case FeedUtils.kNewsBlogInvalidFeed:
+          message = FeedUtils.strings.formatStringFromName(
+                      "newsblog-feedNotValid", [feed.url], 1);
+          break;
+        case FeedUtils.kNewsBlogRequestFailure:
+          message = FeedUtils.strings.formatStringFromName(
+                      "newsblog-networkError", [feed.url], 1);
+          break;
+        case FeedUtils.kNewsBlogFileError:
+          message = FeedUtils.strings.GetStringFromName(
+                      "subscribe-errorOpeningFile");
+          break;
+        case FeedUtils.kNewsBlogBadCertError:
+          let host = Services.io.newURI(feed.url, null, null).host;
+          message = FeedUtils.strings.formatStringFromName(
+                      "newsblog-badCertError", [host], 1);
+          break;
+        case FeedUtils.kNewsBlogNoAuthError:
+          message = FeedUtils.strings.formatStringFromName(
+                      "newsblog-noAuthError", [feed.url], 1);
+          break;
+      }
+      if (message)
+        FeedUtils.log.info("downloaded: " +
+                           (this.mSubscribeMode ? "Subscribe: " : "Update: ") +
+                           location + message);
+
+      if (this.mStatusFeedback)
+      {
+        this.mStatusFeedback.showStatusString(message);
+        this.mStatusFeedback.stopMeteors();
+      }
+
+      if (!--this.mNumPendingFeedDownloads)
+      {
+        FeedUtils.getSubscriptionsDS(feed.server).Flush();
+        this.mFeeds = {};
+        this.mSubscribeMode = false;
+        FeedUtils.log.debug("downloaded: all pending downloads finished");
+
+        // Should we do this on a timer so the text sticks around for a little
+        // while?  It doesnt look like we do it on a timer for newsgroups so
+        // we'll follow that model.  Don't clear the status text if we just
+        // dumped an error to the status bar!
+        if (aErrorCode == FeedUtils.kNewsBlogSuccess && this.mStatusFeedback)
+          this.mStatusFeedback.showStatusString("");
+      }
+
+      feed = null;
+    },
+
+    // This gets called after the RSS parser finishes storing a feed item to
+    // disk. aCurrentFeedItems is an integer corresponding to how many feed
+    // items have been downloaded so far.  aMaxFeedItems is an integer
+    // corresponding to the total number of feed items to download
+    onFeedItemStored: function (feed, aCurrentFeedItems, aMaxFeedItems)
+    {
+      // We currently don't do anything here.  Eventually we may add status
+      // text about the number of new feed articles received.
+
+      if (this.mSubscribeMode && this.mStatusFeedback)
+      {
+        // If we are subscribing to a feed, show feed download progress.
+        this.mStatusFeedback.showStatusString(
+          FeedUtils.strings.formatStringFromName("subscribe-gettingFeedItems",
+                                                 [aCurrentFeedItems, aMaxFeedItems], 2));
+        this.onProgress(feed, aCurrentFeedItems, aMaxFeedItems);
+      }
+    },
+
+    onProgress: function(feed, aProgress, aProgressMax, aLengthComputable)
+    {
+      if (feed.url in this.mFeeds)
+        // Have we already seen this feed?
+        this.mFeeds[feed.url].currentProgress = aProgress;
+      else
+        this.mFeeds[feed.url] = {currentProgress: aProgress,
+                                 maxProgress: aProgressMax};
+
+      this.updateProgressBar();
+    },
+
+    updateProgressBar: function()
+    {
+      let currentProgress = 0;
+      let maxProgress = 0;
+      for (let index in this.mFeeds)
+      {
+        currentProgress += this.mFeeds[index].currentProgress;
+        maxProgress += this.mFeeds[index].maxProgress;
+      }
+
+      // If we start seeing weird "jumping" behavior where the progress bar
+      // goes below a threshold then above it again, then we can factor a
+      // fudge factor here based on the number of feeds that have not reported
+      // yet and the avg progress we've already received for existing feeds.
+      // Fortunately the progressmeter is on a timer and only updates every so
+      // often.  For the most part all of our request have initial progress
+      // before the UI actually picks up a progress value.
+      if (this.mStatusFeedback)
+      {
+        let progress = (currentProgress * 100) / maxProgress;
+        this.mStatusFeedback.showProgress(progress);
+      }
+    }
+  }
+};
+
+XPCOMUtils.defineLazyGetter(FeedUtils, "log", function() {
+  return Log4Moz.getConfiguredLogger("Feeds");
+});
+
+XPCOMUtils.defineLazyGetter(FeedUtils, "strings", function() {
+  return Services.strings.createBundle(
+    "chrome://messenger-newsblog/locale/newsblog.properties");
+});
+
+XPCOMUtils.defineLazyGetter(FeedUtils, "rdf", function() {
+  return Cc["@mozilla.org/rdf/rdf-service;1"].
+         getService(Ci.nsIRDFService);
+});
+
+XPCOMUtils.defineLazyGetter(FeedUtils, "rdfContainerUtils", function() {
+  return Cc["@mozilla.org/rdf/container-utils;1"].
+         getService(Ci.nsIRDFContainerUtils);
+});
diff --git a/mailnews/extensions/newsblog/content/am-newsblog.js b/mailnews/extensions/newsblog/content/am-newsblog.js
new file mode 100644
index 000000000..674280f81
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/am-newsblog.js
@@ -0,0 +1,63 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource:///modules/FeedUtils.jsm");
+
+var gServer, autotagEnable, autotagUsePrefix, autotagPrefix;
+
+function onInit(aPageId, aServerId)
+{
+  var accountName = document.getElementById("server.prettyName");
+  var title = document.getElementById("am-newsblog-title");
+  var defaultTitle = title.getAttribute("defaultTitle");
+
+  var titleValue;
+  if (accountName.value)
+    titleValue = defaultTitle + " - <" + accountName.value + ">";
+  else
+    titleValue = defaultTitle;
+
+  title.setAttribute("title", titleValue);
+  document.title = titleValue;
+
+  onCheckItem("server.biffMinutes", ["server.doBiff"]);
+
+  autotagEnable = document.getElementById("autotagEnable");
+  autotagUsePrefix = document.getElementById("autotagUsePrefix");
+  autotagPrefix = document.getElementById("autotagPrefix");
+
+  let categoryPrefsAcct = FeedUtils.getOptionsAcct(gServer).category;
+  autotagEnable.checked = categoryPrefsAcct.enabled;
+  autotagUsePrefix.disabled = !autotagEnable.checked;
+  autotagUsePrefix.checked = categoryPrefsAcct.prefixEnabled;
+  autotagPrefix.disabled = autotagUsePrefix.disabled || !autotagUsePrefix.checked;
+  autotagPrefix.value = categoryPrefsAcct.prefix;
+}
+
+function onPreInit(account, accountValues)
+{
+  gServer = account.incomingServer;
+}
+
+function setCategoryPrefs(aNode)
+{
+  let options =  FeedUtils.getOptionsAcct(gServer);
+  switch (aNode.id) {
+    case "autotagEnable":
+      options.category.enabled = aNode.checked;
+      autotagUsePrefix.disabled = !aNode.checked;
+      autotagPrefix.disabled = !aNode.checked || !autotagUsePrefix.checked;
+      break;
+    case "autotagUsePrefix":
+      options.category.prefixEnabled = aNode.checked;
+      autotagPrefix.disabled = aNode.disabled || !aNode.checked;
+      break;
+    case "autotagPrefix":
+      options.category.prefix = aNode.value;
+      break;
+  }
+
+  FeedUtils.setOptionsAcct(gServer, options)
+}
diff --git a/mailnews/extensions/newsblog/content/am-newsblog.xul b/mailnews/extensions/newsblog/content/am-newsblog.xul
new file mode 100644
index 000000000..19173d803
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/am-newsblog.xul
@@ -0,0 +1,155 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger-newsblog/skin/feed-subscriptions.css" type="text/css"?>
+
+<!DOCTYPE page [
+<!ENTITY %         newsblogDTD SYSTEM "chrome://messenger-newsblog/locale/am-newsblog.dtd" >
+%newsblogDTD;
+<!ENTITY %             feedDTD SYSTEM "chrome://messenger-newsblog/locale/feed-subscriptions.dtd" >
+%feedDTD;
+<!ENTITY %   accountNoIdentDTD SYSTEM "chrome://messenger/locale/am-serverwithnoidentities.dtd" >
+%accountNoIdentDTD;
+<!ENTITY % accountServerTopDTD SYSTEM "chrome://messenger/locale/am-server-top.dtd">
+%accountServerTopDTD;
+]>
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+      class="color-dialog"
+      title="&accountTitle.label;"
+      onload="parent.onPanelLoaded('am-newsblog.xul');">
+
+  <script type="application/javascript"
+          src="chrome://messenger/content/AccountManager.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger-newsblog/content/am-newsblog.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger-newsblog/content/newsblogOverlay.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger/content/amUtils.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger/content/am-prefs.js"/>
+
+  <vbox flex="1" style="overflow: auto;">
+
+    <dialogheader id="am-newsblog-title" defaultTitle="&accountTitle.label;"/>
+
+    <description class="secDesc">&accountSettingsDesc.label;</description>
+
+    <hbox align="center">
+      <label value="&accountName.label;"
+             accesskey="&accountName.accesskey;"
+             control="server.prettyName"/>
+      <textbox id="server.prettyName"
+               wsm_persist="true"
+               size="30"
+               prefstring="mail.server.%serverkey%.name"/>
+    </hbox>
+
+    <separator class="thin"/>
+
+    <groupbox>
+      <caption label="&serverSettings.label;"/>
+
+      <checkbox id="server.loginAtStartUp"
+                wsm_persist="true"
+                label="&loginAtStartup.label;"
+                accesskey="&loginAtStartup.accesskey;"
+                prefattribute="value"
+                prefstring="mail.server.%serverkey%.login_at_startup"/>
+
+      <hbox align="center">
+        <checkbox id="server.doBiff"
+                  wsm_persist="true"
+                  label="&biffStart.label;"
+                  accesskey="&biffStart.accesskey;"
+                  oncommand="onCheckItem('server.biffMinutes', [this.id]);"
+                  prefattribute="value"
+                  prefstring="mail.server.%serverkey%.check_new_mail"/>
+        <textbox id="server.biffMinutes"
+                 wsm_persist="true"
+                 type="number"
+                 size="3"
+                 min="1"
+                 increment="1"
+                 preftype="int"
+                 prefstring="mail.server.%serverkey%.check_time"
+                 aria-labelledby="server.doBiff server.biffMinutes biffEnd"/>
+        <label id="biffEnd"
+             value="&biffEnd.label;"
+             control="server.biffMinutes"/>
+      </hbox>
+
+      <checkbox id="server.quickMode"
+                wsm_persist="true"
+                genericattr="true"
+                label="&useQuickMode.label;"
+                accesskey="&useQuickMode.accesskey;"
+                preftype="bool"
+                prefattribute="value"
+                prefstring="mail.server.%serverkey%.quickMode"/>
+
+      <checkbox id="autotagEnable"
+                accesskey="&autotagEnable.accesskey;"
+                label="&autotagEnable.label;"
+                oncommand="setCategoryPrefs(this)"/>
+      <hbox>
+          <checkbox id="autotagUsePrefix"
+                    class="indent"
+                    accesskey="&autotagUsePrefix.accesskey;"
+                    label="&autotagUsePrefix.label;"
+                    oncommand="setCategoryPrefs(this)"/>
+          <textbox id="autotagPrefix"
+                   placeholder="&autoTagPrefix.placeholder;"
+                   clickSelectsAll="true"
+                   onchange="setCategoryPrefs(this)"/>
+      </hbox>
+    </groupbox>
+
+    <separator class="thin"/>
+
+    <groupbox>
+      <caption label="&messageStorage.label;"/>
+
+      <checkbox id="server.emptyTrashOnExit"
+                wsm_persist="true"
+                label="&emptyTrashOnExit.label;"
+                accesskey="&emptyTrashOnExit.accesskey;"
+                prefattribute="value"
+                prefstring="mail.server.%serverkey%.empty_trash_on_exit"/>
+
+      <separator class="thin"/>
+
+      <vbox>
+        <label value="&localPath.label;" control="server.localPath"/>
+        <hbox align="center">
+          <textbox readonly="true"
+                   wsm_persist="true"
+                   flex="1"
+                   id="server.localPath"
+                   datatype="nsIFile"
+                   prefstring="mail.server.%serverkey%.directory"
+                   class="uri-element"/>
+          <button id="browseForLocalFolder"
+                  label="&browseFolder.label;"
+                  filepickertitle="&localFolderPicker.label;"
+                  accesskey="&browseFolder.accesskey;"
+                  oncommand="BrowseForLocalFolders();"/>
+        </hbox>
+      </vbox>
+
+    </groupbox>
+
+    <separator class="thin"/>
+
+    <hbox align="center">
+      <spacer flex="1"/>
+      <button label="&manageSubscriptions.label;"
+              accesskey="&manageSubscriptions.accesskey;"
+              oncommand="openSubscriptionsDialog(gServer.rootFolder);"/>
+    </hbox>
+  </vbox>
+</page>
diff --git a/mailnews/extensions/newsblog/content/feed-parser.js b/mailnews/extensions/newsblog/content/feed-parser.js
new file mode 100644
index 000000000..660333422
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/feed-parser.js
@@ -0,0 +1,1034 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// The feed parser depends on FeedItem.js, Feed.js.
+function FeedParser() {
+  this.mSerializer = Cc["@mozilla.org/xmlextras/xmlserializer;1"].
+                     createInstance(Ci.nsIDOMSerializer);
+}
+
+FeedParser.prototype =
+{
+  // parseFeed() returns an array of parsed items ready for processing.  It is
+  // currently a synchronous operation.  If there is an error parsing the feed,
+  // parseFeed returns an empty feed in addition to calling aFeed.onParseError.
+  parseFeed: function (aFeed, aDOM)
+  {
+    if (!(aDOM instanceof Ci.nsIDOMXMLDocument))
+    {
+      // No xml doc.
+      return aFeed.onParseError(aFeed);
+    }
+
+    let doc = aDOM.documentElement;
+    if (doc.namespaceURI == FeedUtils.MOZ_PARSERERROR_NS)
+    {
+      // Gecko caught a basic parsing error.
+      let errStr = doc.firstChild.textContent + "\n" +
+                   doc.firstElementChild.textContent;
+      FeedUtils.log.info("FeedParser.parseFeed: - " + errStr);
+      return aFeed.onParseError(aFeed);
+    }
+    else if (aDOM.querySelector("redirect"))
+    {
+      // Check for RSS2.0 redirect document.
+      let channel = aDOM.querySelector("redirect");
+      if (this.isPermanentRedirect(aFeed, channel, null, null))
+        return;
+
+      return aFeed.onParseError(aFeed);
+    }
+    else if (doc.namespaceURI == FeedUtils.RDF_SYNTAX_NS &&
+             doc.getElementsByTagNameNS(FeedUtils.RSS_NS, "channel")[0])
+    {
+      aFeed.mFeedType = "RSS_1.xRDF"
+      FeedUtils.log.debug("FeedParser.parseFeed: type:url - " +
+                          aFeed.mFeedType +" : " +aFeed.url);
+      // aSource can be misencoded (XMLHttpRequest converts to UTF-8 by default),
+      // but the DOM is almost always right because it uses the hints in the
+      // XML file.  This is slower, but not noticably so.  Mozilla doesn't have
+      // the XMLHttpRequest.responseBody property that IE has, which provides
+      // access to the unencoded response.
+      let xmlString = this.mSerializer.serializeToString(doc);
+      return this.parseAsRSS1(aFeed, xmlString, aFeed.request.channel.URI);
+    }
+    else if (doc.namespaceURI == FeedUtils.ATOM_03_NS)
+    {
+      aFeed.mFeedType = "ATOM_0.3"
+      FeedUtils.log.debug("FeedParser.parseFeed: type:url - " +
+                          aFeed.mFeedType +" : " +aFeed.url);
+      return this.parseAsAtom(aFeed, aDOM);
+    }
+    else if (doc.namespaceURI == FeedUtils.ATOM_IETF_NS)
+    {
+      aFeed.mFeedType = "ATOM_IETF"
+      FeedUtils.log.debug("FeedParser.parseFeed: type:url - " +
+                          aFeed.mFeedType +" : " +aFeed.url);
+      return this.parseAsAtomIETF(aFeed, aDOM);
+    }
+    else if (doc.getElementsByTagNameNS(FeedUtils.RSS_090_NS, "channel")[0])
+    {
+      aFeed.mFeedType = "RSS_0.90"
+      FeedUtils.log.debug("FeedParser.parseFeed: type:url - " +
+                          aFeed.mFeedType +" : " +aFeed.url);
+      return this.parseAsRSS2(aFeed, aDOM);
+    }
+    else
+    {
+      // Parse as RSS 0.9x.  In theory even RSS 1.0 feeds could be parsed by
+      // the 0.9x parser if the RSS namespace were the default.
+      let rssVer = doc.localName == "rss" ? doc.getAttribute("version") : null;
+      if (rssVer)
+        aFeed.mFeedType = "RSS_" + rssVer;
+      else
+        aFeed.mFeedType = "RSS_0.9x?";
+      FeedUtils.log.debug("FeedParser.parseFeed: type:url - " +
+                          aFeed.mFeedType +" : " +aFeed.url);
+      return this.parseAsRSS2(aFeed, aDOM);
+    }
+  },
+
+  parseAsRSS2: function (aFeed, aDOM)
+  {
+    // Get the first channel (assuming there is only one per RSS File).
+    let parsedItems = new Array();
+
+    let channel = aDOM.querySelector("channel");
+    if (!channel)
+      return aFeed.onParseError(aFeed);
+
+    // Usually the empty string, unless this is RSS .90.
+    let nsURI = channel.namespaceURI || "";
+    FeedUtils.log.debug("FeedParser.parseAsRSS2: channel nsURI - " + nsURI);
+
+    if (this.isPermanentRedirect(aFeed, null, channel, null))
+      return;
+
+    let tags = this.childrenByTagNameNS(channel, nsURI, "title");
+    aFeed.title = aFeed.title || this.getNodeValue(tags ? tags[0] : null);
+    tags = this.childrenByTagNameNS(channel, nsURI, "description");
+    aFeed.description = this.getNodeValueFormatted(tags ? tags[0] : null);
+    tags = this.childrenByTagNameNS(channel, nsURI, "link");
+    aFeed.link = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+
+    if (!(aFeed.title || aFeed.description) || !aFeed.link)
+    {
+      FeedUtils.log.error("FeedParser.parseAsRSS2: missing mandatory element " +
+                          "<title> and <description>, or <link>");
+      return aFeed.onParseError(aFeed);
+    }
+
+    if (!aFeed.parseItems)
+      return parsedItems;
+
+    aFeed.invalidateItems();
+    // XXX use getElementsByTagNameNS for now; childrenByTagNameNS would be
+    // better, but RSS .90 is still with us.
+    let itemNodes = aDOM.getElementsByTagNameNS(nsURI, "item");
+    itemNodes = itemNodes ? itemNodes : [];
+    FeedUtils.log.debug("FeedParser.parseAsRSS2: items to parse - " +
+                        itemNodes.length);
+
+    for (let itemNode of itemNodes)
+    {
+      if (!itemNode.childElementCount)
+        continue;
+      let item = new FeedItem();
+      item.feed = aFeed;
+      item.enclosures = [];
+      item.keywords = [];
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.FEEDBURNER_NS, "origLink");
+      let link = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+      if (!link)
+      {
+        tags = this.childrenByTagNameNS(itemNode, nsURI, "link");
+        link = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+      }
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "guid");
+      let guidNode = tags ? tags[0] : null;
+
+      let guid;
+      let isPermaLink = false;
+      if (guidNode)
+      {
+        guid = this.getNodeValue(guidNode);
+        // isPermaLink is true if the value is "true" or if the attribute is
+        // not present; all other values, including "false" and "False" and
+        // for that matter "TRuE" and "meatcake" are false.
+        if (!guidNode.hasAttribute("isPermaLink") ||
+            guidNode.getAttribute("isPermaLink") == "true")
+          isPermaLink = true;
+        // If attribute isPermaLink is missing, it is good to check the validity
+        // of <guid> value as an URL to avoid linking to non-URL strings.
+        if (!guidNode.hasAttribute("isPermaLink"))
+        {
+          try
+          {
+            Services.io.newURI(guid, null, null);
+            if (Services.io.extractScheme(guid) == "tag")
+              isPermaLink = false;
+          }
+          catch (ex)
+          {
+            isPermaLink = false;
+          }
+        }
+
+        item.id = guid;
+      }
+
+      let guidLink = this.validLink(guid);
+      item.url = isPermaLink && guidLink ? guidLink : link ? link : null;
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "description");
+      item.description = this.getNodeValueFormatted(tags ? tags[0] : null);
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "title");
+      item.title = this.getNodeValue(tags ? tags[0] : null);
+      if (!(item.title || item.description))
+      {
+        FeedUtils.log.info("FeedParser.parseAsRSS2: <item> missing mandatory " +
+                           "element, either <title> or <description>; skipping");
+        continue;
+      }
+
+      if (!item.id)
+      {
+        // At this point, if there is no guid, uniqueness cannot be guaranteed
+        // by any of link or date (optional) or title (optional unless there
+        // is no description). Use a big chunk of description; minimize dupes
+        // with url and title if present.
+        item.id = (item.url || item.feed.url) + "#" + item.title + "#" +
+                  (this.stripTags(item.description ?
+                                    item.description.substr(0, 150) : null) ||
+                   item.title);
+        item.id = item.id.replace(/[\n\r\t\s]+/g, " ");
+      }
+
+      // Escape html entities in <title>, which are unescaped as textContent
+      // values. If the title is used as content, it will remain escaped; if
+      // it is used as the title, it will be unescaped upon store. Bug 1240603.
+      // The <description> tag must follow escaping examples found in
+      // http://www.rssboard.org/rss-encoding-examples, i.e. single escape angle
+      // brackets for tags, which are removed if used as title, and double
+      // escape entities for presentation in title.
+      // Better: always use <title>. Best: use Atom.
+      if (!item.title)
+        item.title = this.stripTags(item.description).substr(0, 150);
+      else
+        item.title = item.htmlEscape(item.title);
+
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "author");
+      if (!tags)
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.DC_NS, "creator");
+      item.author = this.getNodeValue(tags ? tags[0] : null) ||
+                    aFeed.title ||
+                    item.author;
+
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "pubDate");
+      if (!tags || !this.getNodeValue(tags[0]))
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.DC_NS, "date");
+      item.date = this.getNodeValue(tags ? tags[0] : null) || item.date;
+
+      // If the date is invalid, users will see the beginning of the epoch
+      // unless we reset it here, so they'll see the current time instead.
+      // This is typical aggregator behavior.
+      if (item.date)
+      {
+        item.date = item.date.trim();
+        if (!FeedUtils.isValidRFC822Date(item.date))
+        {
+          // XXX Use this on the other formats as well.
+          item.date = this.dateRescue(item.date);
+        }
+      }
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.RSS_CONTENT_NS, "encoded");
+      item.content = this.getNodeValueFormatted(tags ? tags[0] : null);
+
+      // Handle <enclosures> and <media:content>, which may be in a
+      // <media:group> (if present).
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "enclosure");
+      let encUrls = [];
+      if (tags)
+        for (let tag of tags)
+        {
+          let url = this.validLink(tag.getAttribute("url"));
+          if (url && encUrls.indexOf(url) == -1)
+          {
+            let type = this.removeUnprintableASCII(tag.getAttribute("type"));
+            let length = this.removeUnprintableASCII(tag.getAttribute("length"));
+            item.enclosures.push(new FeedEnclosure(url, type, length));
+            encUrls.push(url);
+          }
+        }
+
+      tags = itemNode.getElementsByTagNameNS(FeedUtils.MRSS_NS, "content");
+      if (tags)
+        for (let tag of tags)
+        {
+          let url = this.validLink(tag.getAttribute("url"));
+          if (url && encUrls.indexOf(url) == -1)
+          {
+            let type = this.removeUnprintableASCII(tag.getAttribute("type"));
+            let fileSize = this.removeUnprintableASCII(tag.getAttribute("fileSize"));
+            item.enclosures.push(new FeedEnclosure(url, type, fileSize));
+          }
+        }
+
+      // The <origEnclosureLink> tag has no specification, especially regarding
+      // whether more than one tag is allowed and, if so, how tags would
+      // relate to previously declared (and well specified) enclosure urls.
+      // The common usage is to include 1 origEnclosureLink, in addition to
+      // the specified enclosure tags for 1 enclosure. Thus, we will replace the
+      // first enclosure's, if found, url with the first <origEnclosureLink>
+      // url only or else add the <origEnclosureLink> url.
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.FEEDBURNER_NS, "origEnclosureLink");
+      let origEncUrl = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+      if (origEncUrl)
+      {
+        if (item.enclosures.length)
+          item.enclosures[0].mURL = origEncUrl;
+        else
+          item.enclosures.push(new FeedEnclosure(origEncUrl));
+      }
+
+      // Support <category> and autotagging.
+      tags = this.childrenByTagNameNS(itemNode, nsURI, "category");
+      if (tags)
+      {
+        for (let tag of tags)
+        {
+          let term = this.getNodeValue(tag);
+          term = term ? this.xmlUnescape(term.replace(/,/g, ";")) : null;
+          if (term && item.keywords.indexOf(term) == -1)
+            item.keywords.push(term);
+        }
+      }
+
+      parsedItems.push(item);
+    }
+
+    return parsedItems;
+  },
+
+  parseAsRSS1 : function(aFeed, aSource, aBaseURI)
+  {
+    let parsedItems = new Array();
+
+    // RSS 1.0 is valid RDF, so use the RDF parser/service to extract data.
+    // Create a new RDF data source and parse the feed into it.
+    let ds = Cc["@mozilla.org/rdf/datasource;1?name=in-memory-datasource"].
+             createInstance(Ci.nsIRDFDataSource);
+
+    let rdfparser = Cc["@mozilla.org/rdf/xml-parser;1"].
+                    createInstance(Ci.nsIRDFXMLParser);
+    rdfparser.parseString(ds, aBaseURI, aSource);
+
+    // Get information about the feed as a whole.
+    let channel = ds.GetSource(FeedUtils.RDF_TYPE, FeedUtils.RSS_CHANNEL, true);
+    if (!channel)
+      return aFeed.onParseError(aFeed);
+
+    if (this.isPermanentRedirect(aFeed, null, channel, ds))
+      return;
+
+    aFeed.title = aFeed.title ||
+                  this.getRDFTargetValue(ds, channel, FeedUtils.RSS_TITLE) ||
+                  aFeed.url;
+    aFeed.description = this.getRDFTargetValueFormatted(ds, channel, FeedUtils.RSS_DESCRIPTION) ||
+                        "";
+    aFeed.link = this.validLink(this.getRDFTargetValue(ds, channel, FeedUtils.RSS_LINK)) ||
+                 aFeed.url;
+
+    if (!(aFeed.title || aFeed.description) || !aFeed.link)
+    {
+      FeedUtils.log.error("FeedParser.parseAsRSS1: missing mandatory element " +
+                          "<title> and <description>, or <link>");
+      return aFeed.onParseError(aFeed);
+    }
+
+    if (!aFeed.parseItems)
+      return parsedItems;
+
+    aFeed.invalidateItems();
+
+    // Ignore the <items> list and just get the <item>s.
+    let items = ds.GetSources(FeedUtils.RDF_TYPE, FeedUtils.RSS_ITEM, true);
+
+    let index = 0;
+    while (items.hasMoreElements())
+    {
+      let itemResource = items.getNext().QueryInterface(Ci.nsIRDFResource);
+      let item = new FeedItem();
+      item.feed = aFeed;
+
+      // Prefer the value of the link tag to the item URI since the URI could be
+      // a relative URN.
+      let uri = itemResource.ValueUTF8;
+      let link = this.validLink(this.getRDFTargetValue(ds, itemResource, FeedUtils.RSS_LINK));
+      item.url = link || uri;
+      item.description = this.getRDFTargetValueFormatted(ds, itemResource,
+                                                         FeedUtils.RSS_DESCRIPTION);
+      item.title = this.getRDFTargetValue(ds, itemResource, FeedUtils.RSS_TITLE) ||
+                   this.getRDFTargetValue(ds, itemResource, FeedUtils.DC_SUBJECT) ||
+                   (item.description ?
+                     (this.stripTags(item.description).substr(0, 150)) : null);
+      if (!item.url || !item.title)
+      {
+        FeedUtils.log.info("FeedParser.parseAsRSS1: <item> missing mandatory " +
+                           "element <item rdf:about> and <link>, or <title> and " +
+                           "no <description>; skipping");
+        continue;
+      }
+
+      item.id = item.url;
+      item.url = this.validLink(item.url);
+
+      item.author = this.getRDFTargetValue(ds, itemResource, FeedUtils.DC_CREATOR) ||
+                    this.getRDFTargetValue(ds, channel, FeedUtils.DC_CREATOR) ||
+                    aFeed.title ||
+                    item.author;
+      item.date = this.getRDFTargetValue(ds, itemResource, FeedUtils.DC_DATE) ||
+                  item.date;
+      item.content = this.getRDFTargetValueFormatted(ds, itemResource,
+                                                     FeedUtils.RSS_CONTENT_ENCODED);
+
+      parsedItems[index++] = item;
+    }
+    FeedUtils.log.debug("FeedParser.parseAsRSS1: items parsed - " + index);
+
+    return parsedItems;
+  },
+
+  parseAsAtom: function(aFeed, aDOM)
+  {
+    let parsedItems = new Array();
+
+    // Get the first channel (assuming there is only one per Atom File).
+    let channel = aDOM.querySelector("feed");
+    if (!channel)
+      return aFeed.onParseError(aFeed);
+
+    if (this.isPermanentRedirect(aFeed, null, channel, null))
+      return;
+
+    let tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "title");
+    aFeed.title = aFeed.title ||
+                  this.stripTags(this.getNodeValue(tags ? tags[0] : null));
+    tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "tagline");
+    aFeed.description = this.getNodeValueFormatted(tags ? tags[0] : null);
+    tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "link");
+    aFeed.link = this.validLink(this.findAtomLink("alternate", tags));
+
+    if (!aFeed.title)
+    {
+      FeedUtils.log.error("FeedParser.parseAsAtom: missing mandatory element " +
+                          "<title>");
+      return aFeed.onParseError(aFeed);
+    }
+
+    if (!aFeed.parseItems)
+      return parsedItems;
+
+    aFeed.invalidateItems();
+    let items = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "entry");
+    items = items ? items : [];
+    FeedUtils.log.debug("FeedParser.parseAsAtom: items to parse - " +
+                        items.length);
+
+    for (let itemNode of items)
+    {
+      if (!itemNode.childElementCount)
+        continue;
+      let item = new FeedItem();
+      item.feed = aFeed;
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "link");
+      item.url = this.validLink(this.findAtomLink("alternate", tags));
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "id");
+      item.id = this.getNodeValue(tags ? tags[0] : null);
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "summary");
+      item.description = this.getNodeValueFormatted(tags ? tags[0] : null);
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "title");
+      item.title = this.getNodeValue(tags ? tags[0] : null) ||
+                   (item.description ? item.description.substr(0, 150) : null);
+      if (!item.title || !item.id)
+      {
+        // We're lenient about other mandatory tags, but insist on these.
+        FeedUtils.log.info("FeedParser.parseAsAtom: <entry> missing mandatory " +
+                           "element <id>, or <title> and no <summary>; skipping");
+        continue;
+      }
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "author");
+      if (!tags)
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "contributor");
+      if (!tags)
+        tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "author");
+
+      let authorEl = tags ? tags[0] : null;
+
+      let author = "";
+      if (authorEl)
+      {
+        tags = this.childrenByTagNameNS(authorEl, FeedUtils.ATOM_03_NS, "name");
+        let name = this.getNodeValue(tags ? tags[0] : null);
+        tags = this.childrenByTagNameNS(authorEl, FeedUtils.ATOM_03_NS, "email");
+        let email = this.getNodeValue(tags ? tags[0] : null);
+        if (name)
+          author = name + (email ? " <" + email + ">" : "");
+        else if (email)
+          author = email;
+      }
+
+      item.author = author || item.author || aFeed.title;
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "modified");
+      if (!tags || !this.getNodeValue(tags[0]))
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "issued");
+      if (!tags || !this.getNodeValue(tags[0]))
+        tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_03_NS, "created");
+
+      item.date = this.getNodeValue(tags ? tags[0] : null) || item.date;
+
+      // XXX We should get the xml:base attribute from the content tag as well
+      // and use it as the base HREF of the message.
+      // XXX Atom feeds can have multiple content elements; we should differentiate
+      // between them and pick the best one.
+      // Some Atom feeds wrap the content in a CTYPE declaration; others use
+      // a namespace to identify the tags as HTML; and a few are buggy and put
+      // HTML tags in without declaring their namespace so they look like Atom.
+      // We deal with the first two but not the third.
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_03_NS, "content");
+      let contentNode = tags ? tags[0] : null;
+
+      let content;
+      if (contentNode)
+      {
+        content = "";
+        for (let j = 0; j < contentNode.childNodes.length; j++)
+        {
+          let node = contentNode.childNodes.item(j);
+          if (node.nodeType == node.CDATA_SECTION_NODE)
+            content += node.data;
+          else
+            content += this.mSerializer.serializeToString(node);
+        }
+      
+        if (contentNode.getAttribute("mode") == "escaped")
+        {
+          content = content.replace(/&lt;/g, "<");
+          content = content.replace(/&gt;/g, ">");
+          content = content.replace(/&amp;/g, "&");
+        }
+
+        if (content == "")
+          content = null;
+      }
+
+      item.content = content;
+      parsedItems.push(item);
+    }
+
+    return parsedItems;
+  },
+
+  parseAsAtomIETF: function(aFeed, aDOM)
+  {
+    let parsedItems = new Array();
+
+    // Get the first channel (assuming there is only one per Atom File).
+    let channel = this.childrenByTagNameNS(aDOM, FeedUtils.ATOM_IETF_NS, "feed")[0];
+    if (!channel)
+      return aFeed.onParseError(aFeed);
+
+    if (this.isPermanentRedirect(aFeed, null, channel, null))
+      return;
+
+    let tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_IETF_NS, "title");
+    aFeed.title = aFeed.title ||
+                  this.stripTags(this.serializeTextConstruct(tags ? tags[0] : null));
+
+    tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_IETF_NS, "subtitle");
+    aFeed.description = this.serializeTextConstruct(tags ? tags[0] : null);
+
+    tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_IETF_NS, "link");
+    aFeed.link = this.findAtomLink("alternate", tags);
+    aFeed.link = this.validLink(aFeed.link);
+
+    if (!aFeed.title)
+    {
+      FeedUtils.log.error("FeedParser.parseAsAtomIETF: missing mandatory element " +
+                          "<title>");
+      return aFeed.onParseError(aFeed);
+    }
+
+    if (!aFeed.parseItems)
+      return parsedItems;
+
+    aFeed.invalidateItems();
+    let items = this.childrenByTagNameNS(channel, FeedUtils.ATOM_IETF_NS, "entry");
+    items = items ? items : [];
+    FeedUtils.log.debug("FeedParser.parseAsAtomIETF: items to parse - " +
+                        items.length);
+
+    for (let itemNode of items)
+    {
+      if (!itemNode.childElementCount)
+        continue;
+      let item = new FeedItem();
+      item.feed = aFeed;
+      item.enclosures = [];
+      item.keywords = [];
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.FEEDBURNER_NS, "origLink");
+      item.url = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+      if (!item.url)
+      {
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "link");
+        item.url = this.validLink(this.findAtomLink("alternate", tags)) ||
+                   aFeed.link;
+      }
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "id");
+      item.id = this.getNodeValue(tags ? tags[0] : null);
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "summary");
+      item.description = this.serializeTextConstruct(tags ? tags[0] : null);
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "title");
+      item.title = this.stripTags(this.serializeTextConstruct(tags ? tags[0] : null) ||
+                                  (item.description ?
+                                     item.description.substr(0, 150) : null));
+      if (!item.title || !item.id)
+      {
+        // We're lenient about other mandatory tags, but insist on these.
+        FeedUtils.log.info("FeedParser.parseAsAtomIETF: <entry> missing mandatory " +
+                           "element <id>, or <title> and no <summary>; skipping");
+        continue;
+      }
+
+      // XXX Support multiple authors.
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "source");
+      let source = tags ? tags[0] : null;
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "author");
+      if (!tags)
+        tags = this.childrenByTagNameNS(source, FeedUtils.ATOM_IETF_NS, "author");
+      if (!tags)
+        tags = this.childrenByTagNameNS(channel, FeedUtils.ATOM_IETF_NS, "author");
+
+      let authorEl = tags ? tags[0] : null;
+
+      let author = "";
+      if (authorEl)
+      {
+        tags = this.childrenByTagNameNS(authorEl, FeedUtils.ATOM_IETF_NS, "name");
+        let name = this.getNodeValue(tags ? tags[0] : null);
+        tags = this.childrenByTagNameNS(authorEl, FeedUtils.ATOM_IETF_NS, "email");
+        let email = this.getNodeValue(tags ? tags[0] : null);
+        if (name)
+          author = name + (email ? " <" + email + ">" : "");
+        else if (email)
+          author = email;
+      }
+
+      item.author = author || item.author || aFeed.title;
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "updated");
+      if (!tags || !this.getNodeValue(tags[0]))
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "published");
+      if (!tags || !this.getNodeValue(tags[0]))
+        tags = this.childrenByTagNameNS(source, FeedUtils.ATOM_IETF_NS, "published");
+      item.date = this.getNodeValue(tags ? tags[0] : null) || item.date;
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "content");
+      item.content = this.serializeTextConstruct(tags ? tags[0] : null);
+
+      if (item.content)
+        item.xmlContentBase = tags ? tags[0].baseURI : null;
+      else if (item.description)
+      {
+        tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "summary");
+        item.xmlContentBase = tags ? tags[0].baseURI : null;
+      }
+      else
+        item.xmlContentBase = itemNode.baseURI;
+
+      item.xmlContentBase = this.validLink(item.xmlContentBase);
+
+      // Handle <link rel="enclosure"> (if present).
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "link");
+      let encUrls = [];
+      if (tags)
+        for (let tag of tags)
+        {
+          let url = tag.getAttribute("rel") == "enclosure" ?
+                      (tag.getAttribute("href") || "").trim() : null;
+          url = this.validLink(url);
+          if (url && encUrls.indexOf(url) == -1)
+          {
+            let type = this.removeUnprintableASCII(tag.getAttribute("type"));
+            let length = this.removeUnprintableASCII(tag.getAttribute("length"));
+            let title = this.removeUnprintableASCII(tag.getAttribute("title"));
+            item.enclosures.push(new FeedEnclosure(url, type, length, title));
+            encUrls.push(url);
+          }
+        }
+
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.FEEDBURNER_NS, "origEnclosureLink");
+      let origEncUrl = this.validLink(this.getNodeValue(tags ? tags[0] : null));
+      if (origEncUrl)
+      {
+        if (item.enclosures.length)
+          item.enclosures[0].mURL = origEncUrl;
+        else
+          item.enclosures.push(new FeedEnclosure(origEncUrl));
+      }
+
+      // Handle atom threading extension, RFC4685.  There may be 1 or more tags,
+      // and each must contain a ref attribute with 1 Message-Id equivalent
+      // value.  This is the only attr of interest in the spec for presentation.
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_THREAD_NS, "in-reply-to");
+      if (tags)
+      {
+        for (let tag of tags)
+        {
+          let ref = this.removeUnprintableASCII(tag.getAttribute("ref"));
+          if (ref)
+            item.inReplyTo += item.normalizeMessageID(ref) + " ";
+        }
+        item.inReplyTo = item.inReplyTo.trimRight();
+      }
+
+      // Support <category> and autotagging.
+      tags = this.childrenByTagNameNS(itemNode, FeedUtils.ATOM_IETF_NS, "category");
+      if (tags)
+      {
+        for (let tag of tags)
+        {
+          let term = this.removeUnprintableASCII(tag.getAttribute("term"));
+          term = term ? this.xmlUnescape(term.replace(/,/g, ";")).trim() : null;
+          if (term && item.keywords.indexOf(term) == -1)
+            item.keywords.push(term);
+        }
+      }
+
+      parsedItems.push(item);
+    }
+
+    return parsedItems;
+  },
+
+  isPermanentRedirect: function(aFeed, aRedirDocChannel, aFeedChannel, aDS)
+  {
+    // If subscribing to a new feed, do not check redirect tags.
+    if (!aFeed.downloadCallback || aFeed.downloadCallback.mSubscribeMode)
+      return false;
+
+    let tags, tagName, newUrl;
+    let oldUrl = aFeed.url;
+
+    // Check for RSS2.0 redirect document <newLocation> tag.
+    if (aRedirDocChannel)
+    {
+      tagName = "newLocation";
+      tags = this.childrenByTagNameNS(aRedirDocChannel, "", tagName);
+      newUrl = this.getNodeValue(tags ? tags[0] : null);
+    }
+
+    // Check for <itunes:new-feed-url> tag.
+    if (aFeedChannel)
+    {
+      tagName = "new-feed-url";
+      if (aDS)
+      {
+        tags = FeedUtils.rdf.GetResource(FeedUtils.ITUNES_NS + tagName);
+        newUrl = this.getRDFTargetValue(aDS, aFeedChannel, tags);
+      }
+      else
+      {
+        tags = this.childrenByTagNameNS(aFeedChannel, FeedUtils.ITUNES_NS, tagName);
+        newUrl = this.getNodeValue(tags ? tags[0] : null);
+      }
+      tagName = "itunes:" + tagName;
+    }
+
+    if (newUrl && newUrl != oldUrl && FeedUtils.isValidScheme(newUrl) &&
+        FeedUtils.changeUrlForFeed(aFeed, newUrl))
+    {
+      FeedUtils.log.info("FeedParser.isPermanentRedirect: found <" + tagName +
+                         "> tag; updated feed url from: " + oldUrl + " to: " + newUrl +
+                         " in folder: " + FeedUtils.getFolderPrettyPath(aFeed.folder));
+      aFeed.onUrlChange(aFeed, oldUrl);
+      return true;
+    }
+
+    return false;
+  },
+
+  serializeTextConstruct: function(textElement)
+  {
+    let content = "";
+    if (textElement)
+    {
+      let textType = textElement.getAttribute("type");
+
+      // Atom spec says consider it "text" if not present.
+      if (!textType)
+        textType = "text";
+
+      // There could be some strange content type we don't handle.
+      if (textType != "text" && textType != "html" && textType != "xhtml")
+        return null;
+
+      for (let j = 0; j < textElement.childNodes.length; j++)
+      {
+        let node = textElement.childNodes.item(j);
+        if (node.nodeType == node.CDATA_SECTION_NODE)
+          content += this.xmlEscape(node.data);
+        else
+          content += this.mSerializer.serializeToString(node);
+      }
+
+      if (textType == "html")
+        content = this.xmlUnescape(content);
+
+      content = content.trim();
+    }
+
+    // Other parts of the code depend on this being null if there's no content.
+    return content ? content : null;
+  },
+
+  getRDFTargetValue: function(ds, source, property)
+  {
+    let nodeValue = this.getRDFTargetValueRaw(ds, source, property);
+    if (!nodeValue)
+      return null;
+
+    nodeValue = nodeValue.replace(/[\n\r\t]+/g, " ");
+    return this.removeUnprintableASCII(nodeValue);
+
+  },
+
+  getRDFTargetValueFormatted: function(ds, source, property)
+  {
+    let nodeValue = this.getRDFTargetValueRaw(ds, source, property);
+    if (!nodeValue)
+      return null;
+
+    return this.removeUnprintableASCIIexCRLFTAB(nodeValue);
+
+  },
+
+  getRDFTargetValueRaw: function(ds, source, property)
+  {
+    let node = ds.GetTarget(source, property, true);
+    if (node)
+    {
+      try
+      {
+        node = node.QueryInterface(Ci.nsIRDFLiteral);
+        if (node)
+          return node.Value.trim();
+      }
+      catch (e)
+      {
+        // If the RDF was bogus, do nothing.  Rethrow if it's some other problem.
+        if (!((e instanceof Ci.nsIXPCException) &&
+              e.result == Cr.NS_ERROR_NO_INTERFACE))
+          throw new Error("FeedParser.getRDFTargetValue: " + e);
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Return a cleaned up node value. This is intended for values that are not
+   * multiline and not formatted. A sequence of tab or newline is converted to
+   * a space and unprintable ascii is removed.
+   *
+   * @param {Node} node  - A DOM node.
+   * @return {String}    - A clean string value or null.
+   */
+  getNodeValue: function(node)
+  {
+    let nodeValue = this.getNodeValueRaw(node);
+    if (!nodeValue)
+      return null;
+
+    nodeValue = nodeValue.replace(/[\n\r\t]+/g, " ");
+    return this.removeUnprintableASCII(nodeValue);
+  },
+
+  /**
+   * Return a cleaned up formatted node value, meaning CR/LF/TAB are retained
+   * while all other unprintable ascii is removed. This is intended for values
+   * that are multiline and formatted, such as content or description tags.
+   *
+   * @param {Node} node  - A DOM node.
+   * @return {String}    - A clean string value or null.
+   */
+  getNodeValueFormatted: function(node)
+  {
+    let nodeValue = this.getNodeValueRaw(node);
+    if (!nodeValue)
+      return null;
+
+    return this.removeUnprintableASCIIexCRLFTAB(nodeValue);
+  },
+
+  /**
+   * Return a raw node value, as received. This should be sanitized as
+   * appropriate.
+   *
+   * @param {Node} node  - A DOM node.
+   * @return {String}    - A string value or null.
+   */
+  getNodeValueRaw: function(node)
+  {
+    if (node && node.textContent)
+      return node.textContent.trim();
+
+    if (node && node.firstChild)
+    {
+      let ret = "";
+      for (let child = node.firstChild; child; child = child.nextSibling)
+      {
+        let value = this.getNodeValueRaw(child);
+        if (value)
+          ret += value;
+      }
+
+      if (ret)
+        return ret.trim();
+    }
+
+    return null;
+  },
+
+  // Finds elements that are direct children of the first arg.
+  childrenByTagNameNS: function(aElement, aNamespace, aTagName)
+  {
+    if (!aElement)
+      return null;
+
+    let matches = aElement.getElementsByTagNameNS(aNamespace, aTagName);
+    let matchingChildren = new Array();
+    for (let match of matches)
+    {
+      if (match.parentNode == aElement)
+        matchingChildren.push(match)
+    }
+
+    return matchingChildren.length ? matchingChildren : null;
+  },
+
+  /**
+   * Ensure <link> type tags start with http[s]://, ftp:// or magnet:
+   * for values stored in mail headers (content-base and remote enclosures),
+   * particularly to prevent data: uris, javascript, and other spoofing.
+   *
+   * @param {String} link - An intended http url string.
+   * @return {String}     - A clean string starting with http, ftp or magnet,
+   *                        else null.
+   */
+  validLink: function(link)
+  {
+    if (/^((https?|ftp):\/\/|magnet:)/.test(link))
+      return this.removeUnprintableASCII(link.trim());
+
+    return null;
+  },
+
+  findAtomLink: function(linkRel, linkElements)
+  {
+    if (!linkElements)
+      return null;
+
+    // XXX Need to check for MIME type and hreflang.
+    for (let alink of linkElements) {
+      if (alink &&
+          // If there's a link rel.
+          ((alink.getAttribute("rel") && alink.getAttribute("rel") == linkRel) ||
+           // If there isn't, assume 'alternate'.
+           (!alink.getAttribute("rel") && (linkRel == "alternate"))) &&
+          alink.getAttribute("href"))
+      {
+        // Atom links are interpreted relative to xml:base.
+        try {
+          return Services.io.newURI(alink.baseURI, null, null).
+                             resolve(alink.getAttribute("href"));
+        }
+        catch (ex) {}
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Remove unprintable ascii, particularly CR/LF, for non formatted tag values.
+   *
+   * @param {String} s - String to clean.
+   * @return {String}
+   */
+  removeUnprintableASCII: function(s)
+  {
+    return s ? s.replace(/[\x00-\x1F\x7F]+/g, "") : "";
+  },
+
+  /**
+   * Remove unprintable ascii, except CR/LF/TAB, for formatted tag values.
+   *
+   * @param {String} s - String to clean.
+   * @return {String}
+   */
+  removeUnprintableASCIIexCRLFTAB: function(s)
+  {
+    return s ? s.replace(/[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F]+/g, "") : "";
+  },
+
+  stripTags: function(someHTML)
+  {
+    return someHTML ? someHTML.replace(/<[^>]+>/g, "") : someHTML;
+  },
+
+  xmlUnescape: function(s)
+  {
+    s = s.replace(/&lt;/g, "<");
+    s = s.replace(/&gt;/g, ">");
+    s = s.replace(/&amp;/g, "&");
+    return s;
+  },
+
+  xmlEscape: function(s)
+  {
+    s = s.replace(/&/g, "&amp;");
+    s = s.replace(/>/g, "&gt;");
+    s = s.replace(/</g, "&lt;");
+    return s;
+  },
+
+  dateRescue: function(dateString)
+  {
+    // Deal with various kinds of invalid dates.
+    if (!isNaN(parseInt(dateString)))
+    {
+      // It's an integer, so maybe it's a timestamp.
+      let d = new Date(parseInt(dateString) * 1000);
+      let now = new Date();
+      let yeardiff = now.getFullYear() - d.getFullYear();
+      FeedUtils.log.trace("FeedParser.dateRescue: Rescue Timestamp date - " +
+                          d.toString() + " ,year diff - " + yeardiff);
+      if (yeardiff >= 0 && yeardiff < 3)
+        // It's quite likely the correct date.
+        return d.toString();
+    }
+
+    // Could be an ISO8601/W3C date.  If not, get the current time.
+    return FeedUtils.getValidRFC5322Date(dateString);
+  }
+};
diff --git a/mailnews/extensions/newsblog/content/feed-subscriptions.js b/mailnews/extensions/newsblog/content/feed-subscriptions.js
new file mode 100644
index 000000000..2b77e60c4
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/feed-subscriptions.js
@@ -0,0 +1,2703 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource:///modules/FeedUtils.jsm");
+Components.utils.import("resource:///modules/gloda/log4moz.js");
+Components.utils.import("resource:///modules/mailServices.js");
+Components.utils.import("resource://gre/modules/FileUtils.jsm");
+Components.utils.import("resource://gre/modules/PluralForm.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var {classes: Cc, interfaces: Ci} = Components;
+
+var FeedSubscriptions = {
+  get mMainWin() { return Services.wm.getMostRecentWindow("mail:3pane"); },
+
+  get mTree() { return document.getElementById("rssSubscriptionsList"); },
+
+  mFeedContainers: [],
+  mRSSServer     : null,
+  mActionMode    : null,
+  kSubscribeMode : 1,
+  kUpdateMode    : 2,
+  kMoveMode      : 3,
+  kCopyMode      : 4,
+  kImportingOPML : 5,
+  kVerifyUrlMode : 6,
+
+  get FOLDER_ACTIONS()
+  {
+    return Ci.nsIMsgFolderNotificationService.folderAdded |
+           Ci.nsIMsgFolderNotificationService.folderDeleted |
+           Ci.nsIMsgFolderNotificationService.folderRenamed |
+           Ci.nsIMsgFolderNotificationService.folderMoveCopyCompleted;
+  },
+
+  onLoad: function ()
+  {
+    // Extract the folder argument.
+    let folder;
+    if (window.arguments && window.arguments[0].folder)
+      folder = window.arguments[0].folder;
+
+    // Ensure dialog is fully loaded before selecting, to get visible row.
+    setTimeout(function() {
+      FeedSubscriptions.refreshSubscriptionView(folder)
+    }, 100);
+    let message = FeedUtils.strings.GetStringFromName("subscribe-loading");
+    this.updateStatusItem("statusText", message);
+
+    FeedUtils.CANCEL_REQUESTED = false;
+
+    if (this.mMainWin)
+    {
+      this.mMainWin.FeedFolderNotificationService = MailServices.mfn;
+      this.mMainWin.FeedFolderNotificationService
+                   .addListener(this.FolderListener, this.FOLDER_ACTIONS);
+    }
+  },
+
+  onClose: function ()
+  {
+    let dismissDialog = true;
+
+    // If we are in the middle of subscribing to a feed, inform the user that
+    // dismissing the dialog right now will abort the feed subscription.
+    if (this.mActionMode == this.kSubscribeMode)
+    {
+      let pTitle = FeedUtils.strings.GetStringFromName(
+                     "subscribe-cancelSubscriptionTitle");
+      let pMessage = FeedUtils.strings.GetStringFromName(
+                       "subscribe-cancelSubscription");
+      dismissDialog =
+        !(Services.prompt.confirmEx(window, pTitle, pMessage,
+                                    Ci.nsIPromptService.STD_YES_NO_BUTTONS,
+                                    null, null, null, null, { }));
+    }
+
+    if (dismissDialog)
+    {
+      FeedUtils.CANCEL_REQUESTED = this.mActionMode == this.kSubscribeMode;
+      if (this.mMainWin)
+      {
+        this.mMainWin.FeedFolderNotificationService
+                     .removeListener(this.FolderListener, this.FOLDER_ACTIONS);
+        delete this.mMainWin.FeedFolderNotificationService;
+      }
+    }
+
+    return dismissDialog;
+  },
+
+  refreshSubscriptionView: function(aSelectFolder, aSelectFeedUrl)
+  {
+    let item = this.mView.currentItem;
+    this.loadSubscriptions();
+    this.mTree.view = this.mView;
+
+    if (aSelectFolder && !aSelectFeedUrl)
+      this.selectFolder(aSelectFolder);
+    else
+    {
+      // If no folder to select, try to select the pre rebuild selection, in
+      // an existing window.  For folderpane changes in a feed account.
+      if (item)
+      {
+        let rootFolder = item.container ? item.folder.rootFolder :
+                                          item.parentFolder.rootFolder;
+        if (item.container)
+        {
+          if (!this.selectFolder(item.folder, { open: item.open }))
+            // The item no longer exists, an ancestor folder was deleted or
+            // renamed/moved.
+            this.selectFolder(rootFolder);
+        }
+        else {
+          let url = item.parentFolder == aSelectFolder ? aSelectFeedUrl :
+                                                         item.url;
+          this.selectFeed({ folder: rootFolder, url: url }, null);
+        }
+      }
+    }
+
+    this.mView.treeBox.ensureRowIsVisible(this.mView.selection.currentIndex);
+    this.clearStatusInfo();
+  },
+
+  mView:
+  {
+    kRowIndexUndefined: -1,
+
+    get currentItem() {
+      // Get the current selection, if any.
+      let seln = this.selection;
+      let currentSelectionIndex = seln ? seln.currentIndex : null;
+      let item;
+      if (currentSelectionIndex != null)
+        item = this.getItemAtIndex(currentSelectionIndex);
+
+      return item;
+    },
+
+    /* nsITreeView */
+    treeBox: null,
+
+    mRowCount: 0,
+    get rowCount()                         { return this.mRowCount; },
+
+    _selection: null,
+    get selection ()                       { return this._selection; },
+    set selection (val)                    { return this._selection = val; },
+
+    setTree: function(aTreebox)            { this.treeBox = aTreebox; },
+    isSeparator: function(aRow)            { return false; },
+    isSorted: function()                   { return false; },
+    isSelectable: function(aRow, aColumn)  { return false; },
+    isEditable: function (aRow, aColumn)   { return false; },
+
+    getProgressMode : function(aRow, aCol) {},
+    cycleHeader: function(aCol)            {},
+    cycleCell: function(aRow, aCol)        {},
+    selectionChanged: function()           {},
+    performAction: function(aAction)       {},
+    performActionOnRow: function (aAction, aRow)       {},
+    performActionOnCell: function(aAction, aRow, aCol) {},
+    getRowProperties: function(aRow)                   { return ""; },
+    getColumnProperties: function(aCol)                { return ""; },
+    getCellValue: function (aRow, aColumn)             {},
+    setCellValue: function (aRow, aColumn, aValue)     {},
+    setCellText: function (aRow, aColumn, aValue)      {},
+
+    getCellProperties: function (aRow, aColumn) {
+      let item = this.getItemAtIndex(aRow);
+      let folder = item && item.folder ? item.folder : null;
+#ifdef MOZ_THUNDERBIRD
+      let properties = ["folderNameCol"];
+      let hasFeeds = folder ? FeedUtils.getFeedUrlsInFolder(folder) : false;
+      let prop = !folder ? "isFeed-true" :
+                 hasFeeds ? "isFeedFolder-true" :
+                 folder.isServer ? "serverType-rss isServer-true" : null;
+      if (prop)
+        properties.push(prop);
+      return properties.join(" ");
+#else
+      return !folder ? "serverType-rss" :
+             folder.isServer ? "serverType-rss isServer-true" : "livemark";
+#endif
+    },
+
+    isContainer: function (aRow)
+    {
+      let item = this.getItemAtIndex(aRow);
+      return item ? item.container : false;
+    },
+
+    isContainerOpen: function (aRow)
+    { 
+      let item = this.getItemAtIndex(aRow);
+      return item ? item.open : false;
+    },
+
+    isContainerEmpty: function (aRow)
+    { 
+      let item = this.getItemAtIndex(aRow);
+      if (!item) 
+        return false;
+
+      return item.children.length == 0;
+    },
+
+    getItemAtIndex: function (aRow)
+    {
+      if (aRow < 0 || aRow >= FeedSubscriptions.mFeedContainers.length)
+        return null;
+
+      return FeedSubscriptions.mFeedContainers[aRow];
+    },
+
+    getItemInViewIndex: function(aFolder)
+    {
+      if (!aFolder || !(aFolder instanceof Ci.nsIMsgFolder))
+        return null;
+
+      for (let index = 0; index < this.rowCount; index++)
+      {
+        // Find the visible folder in the view.
+        let item = this.getItemAtIndex(index);
+        if (item && item.container && item.url == aFolder.URI)
+          return index;
+      }
+
+      return null;
+    },
+
+    removeItemAtIndex: function (aRow, aNoSelect)
+    {
+      let itemToRemove = this.getItemAtIndex(aRow);
+      if (!itemToRemove)
+        return;
+
+      if (itemToRemove.container && itemToRemove.open)
+        // Close it, if open container.
+        this.toggleOpenState(aRow);
+
+      let parentIndex = this.getParentIndex(aRow);
+      let hasNextSibling = this.hasNextSibling(aRow, aRow);
+      if (parentIndex != this.kRowIndexUndefined)
+      {
+        let parent = this.getItemAtIndex(parentIndex);
+        if (parent)
+        {
+          for (let index = 0; index < parent.children.length; index++)
+            if (parent.children[index] == itemToRemove)
+            {
+              parent.children.splice(index, 1);
+              break;
+            }
+        }
+      }
+
+      // Now remove it from our view.
+      FeedSubscriptions.mFeedContainers.splice(aRow, 1);
+
+      // Now invalidate the correct tree rows.
+      this.mRowCount--;
+      this.treeBox.rowCountChanged(aRow, -1);
+
+      // Now update the selection position, unless noSelect (selection is
+      // done later or not at all).  If the item is the last child, select the
+      // parent.  Otherwise select the next sibling.
+      if (!aNoSelect) {
+        if (aRow <= FeedSubscriptions.mFeedContainers.length)
+          this.selection.select(hasNextSibling ? aRow : aRow - 1);
+        else
+          this.selection.clearSelection();
+      }
+
+      // Now refocus the tree.
+      FeedSubscriptions.mTree.focus();
+    },
+
+    getCellText: function (aRow, aColumn)
+    {
+      let item = this.getItemAtIndex(aRow);
+      return (item && aColumn.id == "folderNameCol") ? item.name : "";
+    },
+
+    getImageSrc: function(aRow, aCol)
+    {
+      let item = this.getItemAtIndex(aRow);
+      if ((item.folder && item.folder.isServer) || item.open)
+        return "";
+
+      if (item.favicon != null)
+        return item.favicon;
+
+      if (item.folder && FeedSubscriptions.mMainWin &&
+          "gFolderTreeView" in FeedSubscriptions.mMainWin) {
+        let favicon = FeedSubscriptions.mMainWin.gFolderTreeView
+                                       .getFolderCacheProperty(item.folder, "favicon");
+        if (favicon != null)
+          return item.favicon = favicon;
+      }
+
+      let callback = (iconUrl => {
+        item.favicon = iconUrl;
+        if (item.folder)
+        {
+          for (let child of item.children)
+            if (!child.container)
+            {
+              child.favicon = iconUrl;
+              break;
+            }
+        }
+
+        this.selection.tree.invalidateRow(aRow);
+      });
+
+      // A closed non server folder.
+      if (item.folder)
+      {
+        for (let child of item.children)
+        {
+          if (!child.container) {
+            if (child.favicon != null)
+              return child.favicon;
+
+            setTimeout(() => {
+              FeedUtils.getFavicon(child.parentFolder, child.url, null,
+                                   window, callback);
+            }, 0);
+            break;
+          }
+        }
+      }
+      else
+      {
+        // A feed.
+        setTimeout(() => {
+          FeedUtils.getFavicon(item.parentFolder, item.url, null,
+                               window, callback);
+        }, 0);
+      }
+
+      // Store empty string to return default while favicons are retrieved.
+      return item.favicon = "";
+    },
+
+    canDrop: function (aRow, aOrientation)
+    { 
+      let dropResult = this.extractDragData(aRow);
+      return aOrientation == Ci.nsITreeView.DROP_ON && dropResult.canDrop &&
+             (dropResult.dropUrl || dropResult.dropOnIndex != this.kRowIndexUndefined);
+    },
+
+    drop: function (aRow, aOrientation)
+    {
+      let win = FeedSubscriptions;
+      let results = this.extractDragData(aRow);
+      if (!results.canDrop)
+        return;
+
+      // Preselect the drop folder.
+      this.selection.select(aRow);
+
+      if (results.dropUrl)
+      {
+        // Don't freeze the app that initiated the drop just because we are
+        // in a loop waiting for the user to dimisss the add feed dialog.
+        setTimeout(function() {
+          win.addFeed(results.dropUrl, null, true, null, win.kSubscribeMode);
+        }, 0);
+        let folderItem = this.getItemAtIndex(aRow);
+        FeedUtils.log.debug("drop: folder, url - " +
+                            folderItem.folder.name + ", " + results.dropUrl);
+      }
+      else if (results.dropOnIndex != this.kRowIndexUndefined)
+      {
+        win.moveCopyFeed(results.dropOnIndex, aRow, results.dropEffect);
+      }
+    },
+
+    // Helper function for drag and drop.
+    extractDragData: function(aRow)
+    {
+      let dt = this._currentDataTransfer;
+      let dragDataResults = { canDrop:     false,
+                              dropUrl:     null,
+                              dropOnIndex: this.kRowIndexUndefined,
+                              dropEffect:  dt.dropEffect };
+
+      if (dt.getData("text/x-moz-feed-index"))
+      {
+        // Dragging a feed in the tree.
+        if (this.selection)
+        {
+          dragDataResults.dropOnIndex = this.selection.currentIndex;
+
+          let curItem = this.getItemAtIndex(this.selection.currentIndex);
+          let newItem = this.getItemAtIndex(aRow);
+          let curServer = curItem && curItem.parentFolder ?
+                            curItem.parentFolder.server : null;
+          let newServer = newItem && newItem.folder ?
+                            newItem.folder.server : null;
+
+          // No copying within the same account and no moving to the account
+          // folder in the same account.
+          if (!(curServer == newServer &&
+                (dragDataResults.dropEffect == "copy" ||
+                 newItem.folder == curItem.parentFolder ||
+                 newItem.folder.isServer)))
+            dragDataResults.canDrop = true;
+        }
+      }
+      else
+      {
+        // Try to get a feed url.
+        let validUri = FeedUtils.getFeedUriFromDataTransfer(dt);
+
+        if (validUri)
+        {
+          dragDataResults.canDrop = true;
+          dragDataResults.dropUrl = validUri.spec;
+        }
+      }
+
+      return dragDataResults;
+    },
+
+    getParentIndex: function (aRow)
+    {
+      let item = this.getItemAtIndex(aRow);
+
+      if (item)
+      {
+        for (let index = aRow; index >= 0; index--)
+          if (FeedSubscriptions.mFeedContainers[index].level < item.level)
+            return index;
+      }
+
+      return this.kRowIndexUndefined;
+    },
+
+    isIndexChildOfParentIndex: function (aRow, aChildRow)
+    {
+      // For visible tree rows, not if items are children of closed folders.
+      let item = this.getItemAtIndex(aRow);
+      if (!item || aChildRow <= aRow)
+        return false;
+
+      let targetLevel = this.getItemAtIndex(aRow).level;
+      let rows = FeedSubscriptions.mFeedContainers;
+
+      for (let i = aRow + 1; i < rows.length; i++) {
+        if (this.getItemAtIndex(i).level <= targetLevel)
+          break;
+        if (aChildRow == i)
+          return true;
+      }
+
+      return false;
+    },
+
+    hasNextSibling: function(aRow, aAfterIndex) {
+      let targetLevel = this.getItemAtIndex(aRow).level;
+      let rows = FeedSubscriptions.mFeedContainers;
+      for (let i = aAfterIndex + 1; i < rows.length; i++) {
+        if (this.getItemAtIndex(i).level == targetLevel)
+          return true;
+        if (this.getItemAtIndex(i).level < targetLevel)
+          return false;
+      }
+
+      return false;
+    },
+
+    hasPreviousSibling: function (aRow)
+    {
+      let item = this.getItemAtIndex(aRow);
+      if (item && aRow)
+        return this.getItemAtIndex(aRow - 1).level == item.level;
+      else
+        return false;
+    },
+
+    getLevel: function (aRow)
+    {
+      let item = this.getItemAtIndex(aRow);
+      if (!item)
+        return 0;
+
+      return item.level;
+    },
+
+    toggleOpenState: function (aRow)
+    {
+      let item = this.getItemAtIndex(aRow);
+      if (!item)
+        return;
+
+      // Save off the current selection item.
+      let seln = this.selection;
+      let currentSelectionIndex = seln.currentIndex;
+
+      let rowsChanged = this.toggle(aRow)
+
+      // Now restore selection, ensuring selection is maintained on toggles.
+      if (currentSelectionIndex > aRow)
+        seln.currentIndex = currentSelectionIndex + rowsChanged;
+      else
+        seln.select(currentSelectionIndex);
+
+      seln.selectEventsSuppressed = false;
+    },
+
+    toggle: function (aRow)
+    {
+      // Collapse the row, or build sub rows based on open states in the map.
+      let item = this.getItemAtIndex(aRow);
+      if (!item)
+        return null;
+
+      let rows = FeedSubscriptions.mFeedContainers;
+      let rowCount = 0;
+      let multiplier;
+
+      function addDescendants(aItem)
+      {
+        for (let i = 0; i < aItem.children.length; i++)
+        {
+          rowCount++;
+          let child = aItem.children[i];
+          rows.splice(aRow + rowCount, 0, child);
+          if (child.open)
+            addDescendants(child);
+        }
+      }
+
+      if (item.open)
+      {
+        // Close the container.  Add up all subfolders and their descendants
+        // who may be open.
+        multiplier = -1;
+        let nextRow = aRow + 1;
+        let nextItem = rows[nextRow];
+        while (nextItem && nextItem.level > item.level)
+        {
+          rowCount++;
+          nextItem = rows[++nextRow];
+        }
+
+        rows.splice(aRow + 1, rowCount);
+      }
+      else
+      {
+        // Open the container.  Restore the open state of all subfolder and
+        // their descendants.
+        multiplier = 1;
+        addDescendants(item);
+      }
+
+      let delta = multiplier * rowCount;
+      this.mRowCount += delta;
+
+      item.open = !item.open;
+      // Suppress the select event caused by rowCountChanged.
+      this.selection.selectEventsSuppressed = true;
+      // Add or remove the children from our view.
+      this.treeBox.rowCountChanged(aRow, delta);
+      return delta;
+    }
+  },
+
+  makeFolderObject: function (aFolder, aCurrentLevel)
+  {
+    let defaultQuickMode = aFolder.server.getBoolValue("quickMode");
+    let optionsAcct = aFolder.isServer ? FeedUtils.getOptionsAcct(aFolder.server) :
+                                         null;
+    let open = !aFolder.isServer &&
+               aFolder.server == this.mRSSServer &&
+               this.mActionMode == this.kImportingOPML ? true : false
+    let folderObject =  { children : [],
+                          folder   : aFolder,
+                          name     : aFolder.prettyName,
+                          level    : aCurrentLevel,
+                          url      : aFolder.URI,
+                          quickMode: defaultQuickMode,
+                          options  : optionsAcct,
+                          open     : open,
+                          container: true,
+                          favicon  : null };
+
+    // If a feed has any sub folders, add them to the list of children.
+    let folderEnumerator = aFolder.subFolders;
+
+    while (folderEnumerator.hasMoreElements())
+    {
+      let folder = folderEnumerator.getNext();
+      if ((folder instanceof Ci.nsIMsgFolder) &&
+          !folder.getFlag(Ci.nsMsgFolderFlags.Trash) &&
+          !folder.getFlag(Ci.nsMsgFolderFlags.Virtual))
+      {
+        folderObject.children
+                    .push(this.makeFolderObject(folder, aCurrentLevel + 1));
+      }
+    }
+
+    let feeds = this.getFeedsInFolder(aFolder);
+    for (let feed of feeds)
+    {
+      // Now add any feed urls for the folder.
+      folderObject.children.push(this.makeFeedObject(feed,
+                                                     aFolder,
+                                                     aCurrentLevel + 1));
+    }
+
+    // Finally, set the folder's quickMode based on the its first feed's
+    // quickMode, since that is how the view determines summary mode, and now
+    // quickMode is updated to be the same for all feeds in a folder.
+    if (feeds && feeds[0])
+      folderObject.quickMode = feeds[0].quickMode;
+
+    folderObject.children = this.folderItemSorter(folderObject.children);
+
+    return folderObject;
+  },
+
+  folderItemSorter: function (aArray)
+  {
+    return aArray.sort(function(a, b) { return a.name.toLowerCase() >
+                                               b.name.toLowerCase() }).
+                  sort(function(a, b) { return a.container < b.container });
+  },
+
+  getFeedsInFolder: function (aFolder)
+  {
+    let feeds = new Array();
+    let feedUrlArray = FeedUtils.getFeedUrlsInFolder(aFolder);
+    if (!feedUrlArray)
+      // No feedUrls in this folder.
+      return feeds;
+
+    for (let url of feedUrlArray)
+    {
+      let feedResource = FeedUtils.rdf.GetResource(url);
+      let feed = new Feed(feedResource, aFolder.server);
+      feeds.push(feed);
+    }
+
+    return feeds;
+  },
+
+  makeFeedObject: function (aFeed, aFolder, aLevel)
+  {
+    // Look inside the data source for the feed properties.
+    let feed = { children    : [],
+                 parentFolder: aFolder,
+                 name        : aFeed.title || aFeed.description || aFeed.url,
+                 url         : aFeed.url,
+                 quickMode   : aFeed.quickMode,
+                 options     : aFeed.options || FeedUtils.optionsTemplate,
+                 level       : aLevel,
+                 open        : false,
+                 container   : false,
+                 favicon     : null };
+    return feed;
+  },
+
+  loadSubscriptions: function ()
+  {
+    // Put together an array of folders.  Each feed account level folder is
+    // included as the root.
+    let numFolders = 0;
+    let feedContainers = [];
+    // Get all the feed account folders.
+    let feedRootFolders = FeedUtils.getAllRssServerRootFolders();
+
+    feedRootFolders.forEach(function(rootFolder) {
+      feedContainers.push(this.makeFolderObject(rootFolder, 0));
+      numFolders++;
+    }, this);
+
+    this.mFeedContainers = feedContainers;
+    this.mView.mRowCount = numFolders;
+
+    FeedSubscriptions.mTree.focus();
+  },
+
+  /**
+   * Find the folder in the tree.  The search may be limited to subfolders of
+   * a known folder, or expanded to include the entire tree. This function is
+   * also used to insert/remove folders without rebuilding the tree view cache
+   * (to avoid position/toggle state loss).
+   * 
+   * @param  aFolder nsIMsgFolder - the folder to find.
+   * @param  [aParams] object     - params object, containing:
+   * 
+   * [parentIndex] int        - index of folder to start the search; if
+   *                            null (default), the index of the folder's
+   *                            rootFolder will be used.
+   * [select] boolean         - if true (default) the folder's ancestors
+   *                            will be opened and the folder selected.
+   * [open] boolean           - if true (default) the folder is opened.
+   * [remove] boolean         - delete the item from tree row cache if true,
+   *                            false (default) otherwise.
+   * [newFolder] nsIMsgFolder - if not null (default) the new folder,
+   *                            for add or rename.
+   * 
+   * @return bool found - true if found, false if not.
+   */
+  selectFolder: function(aFolder, aParms)
+  {
+    let folderURI = aFolder.URI;
+    let parentIndex = aParms && ("parentIndex" in aParms) ? aParms.parentIndex : null;
+    let selectIt = aParms && ("select" in aParms) ? aParms.select : true;
+    let openIt = aParms && ("open" in aParms) ? aParms.open : true;
+    let removeIt = aParms && ("remove" in aParms) ? aParms.remove : false;
+    let newFolder = aParms && ("newFolder" in aParms) ? aParms.newFolder : null;
+    let startIndex, startItem;
+    let found = false;
+
+    let firstVisRow, curFirstVisRow, curLastVisRow;
+    if (this.mView.treeBox)
+      firstVisRow = this.mView.treeBox.getFirstVisibleRow();
+
+    if (parentIndex != null)
+    {
+      // Use the parentIndex if given.
+      startIndex = parentIndex;
+      if (aFolder.isServer)
+        // Fake item for account root folder.
+        startItem = { name: "AccountRoot",
+                      children: [this.mView.getItemAtIndex(startIndex)],
+                      container: true, open: false, url: null, level: -1};
+      else
+        startItem = this.mView.getItemAtIndex(startIndex);
+    }
+    else
+    {
+      // Get the folder's root parent index.
+      let index = 0;
+      for (index; index < this.mView.rowCount; index++)
+      {
+        let item = this.mView.getItemAtIndex(index);
+        if (item.url == aFolder.server.rootFolder.URI)
+          break;
+      }
+      startIndex = index;
+      if (aFolder.isServer)
+        // Fake item for account root folder.
+        startItem = { name: "AccountRoot",
+                      children: [this.mView.getItemAtIndex(startIndex)],
+                      container: true, open: false, url: null, level: -1};
+      else
+        startItem = this.mView.getItemAtIndex(startIndex);
+    }
+
+    function containsFolder(aItem)
+    {
+      // Search for the folder.  If it's found, set the open state on all
+      // ancestor folders.  A toggle() rebuilds the view rows to match the map.
+      if (aItem.url == folderURI)
+        return found = true;
+
+      for (let i = 0; i < aItem.children.length; i++) {
+        if (aItem.children[i].container && containsFolder(aItem.children[i]))
+        {
+          if (removeIt && aItem.children[i].url == folderURI)
+          {
+            // Get all occurences in the tree cache arrays.
+            FeedUtils.log.debug("selectFolder: delete in cache, " +
+                                "parent:children:item:index - "+
+                                aItem.name + ":" + aItem.children.length + ":" +
+                                aItem.children[i].name + ":" + i);
+            aItem.children.splice(i, 1);
+            FeedUtils.log.debug("selectFolder: deleted in cache, " +
+                                "parent:children - " +
+                                aItem.name + ":" + aItem.children.length);
+            removeIt = false;
+            return true;
+          }
+          if (newFolder)
+          {
+            let newItem = FeedSubscriptions.makeFolderObject(newFolder,
+                                                             aItem.level + 1);
+            newItem.open = aItem.children[i].open;
+            if (newFolder.isServer)
+              FeedSubscriptions.mFeedContainers[startIndex] = newItem;
+            else
+            {
+              aItem.children[i] = newItem;
+              aItem.children = FeedSubscriptions.folderItemSorter(aItem.children);
+            }
+            FeedUtils.log.trace("selectFolder: parentName:newFolderName:newFolderItem - " +
+                                aItem.name + ":" + newItem.name + ":" + newItem.toSource());
+            newFolder = null;
+            return true;
+          }
+          if (!found)
+          {
+            // For the folder to find.
+            found = true;
+            aItem.children[i].open = openIt;
+          }
+          else
+          {
+            // For ancestor folders.
+            if (selectIt || openIt)
+              aItem.children[i].open = true;
+          }
+
+          return true;
+        }
+      }
+
+      return false;
+    }
+
+    if (startItem)
+    {
+      // Find a folder with a specific parent.
+      containsFolder(startItem);
+      if (!found)
+        return false;
+
+      if (!selectIt)
+        return true;
+
+      if (startItem.open)
+        this.mView.toggle(startIndex);
+      this.mView.toggleOpenState(startIndex);
+    }
+
+    for (let index = 0; index < this.mView.rowCount && selectIt; index++)
+    {
+      // The desired folder is now in the view.
+      let item = this.mView.getItemAtIndex(index);
+      if (!item.container)
+        continue;
+      if (item.url == folderURI)
+      {
+        if (item.children.length &&
+            ((!item.open && openIt) || (item.open && !openIt)))
+          this.mView.toggleOpenState(index);
+        this.mView.selection.select(index);
+        found = true;
+        break;
+      }
+    }
+
+    // Ensure tree position does not jump unnecessarily.
+    curFirstVisRow = this.mView.treeBox.getFirstVisibleRow();
+    curLastVisRow = this.mView.treeBox.getLastVisibleRow();
+    if (firstVisRow >= 0 &&
+        this.mView.rowCount - curLastVisRow > firstVisRow - curFirstVisRow)
+      this.mView.treeBox.scrollToRow(firstVisRow);
+    else
+      this.mView.treeBox.ensureRowIsVisible(this.mView.rowCount - 1);
+
+    FeedUtils.log.debug("selectFolder: curIndex:firstVisRow:" +
+                        "curFirstVisRow:curLastVisRow:rowCount - " +
+                        this.mView.selection.currentIndex + ":" +
+                        firstVisRow + ":" +
+                        curFirstVisRow + ":" + curLastVisRow + ":" + this.mView.rowCount);
+
+    return found;
+  },
+
+  /**
+   * Find the feed in the tree.  The search first gets the feed's folder,
+   * then selects the child feed.
+   * 
+   * @param  aFeed {Feed object}    - the feed to find.
+   * @param  [aParentIndex] integer - index to start the folder search.
+   * 
+   * @return found bool - true if found, false if not.
+   */
+  selectFeed: function(aFeed, aParentIndex)
+  {
+    let folder = aFeed.folder;
+    let found = false;
+
+    if (aFeed.folder.isServer) {
+      // If passed the root folder, the caller wants to get the feed's folder
+      // from the db (for cases of an ancestor folder rename/move).
+      let itemResource = FeedUtils.rdf.GetResource(aFeed.url);
+      let ds = FeedUtils.getSubscriptionsDS(aFeed.folder.server);
+      folder = ds.GetTarget(itemResource, FeedUtils.FZ_DESTFOLDER, true);
+    }
+
+    if (this.selectFolder(folder, { parentIndex: aParentIndex }))
+    {
+      let seln = this.mView.selection;
+      let item = this.mView.currentItem;
+      if (item) {
+        for (let i = seln.currentIndex + 1; i < this.mView.rowCount; i++) {
+          if (this.mView.getItemAtIndex(i).url == aFeed.url) {
+            this.mView.selection.select(i);
+            this.mView.treeBox.ensureRowIsVisible(i);
+            found = true;
+            break;
+          }
+        }
+      }
+    }
+
+    return found;
+  },
+
+  updateFeedData: function (aItem)
+  {
+    if (!aItem)
+      return;
+
+    let nameValue = document.getElementById("nameValue");
+    let locationValue = document.getElementById("locationValue");
+    let locationValidate = document.getElementById("locationValidate");
+    let selectFolder = document.getElementById("selectFolder");
+    let selectFolderValue = document.getElementById("selectFolderValue");
+    let isServer = aItem.folder && aItem.folder.isServer;
+    let isFolder = aItem.folder && !aItem.folder.isServer;
+    let isFeed = !aItem.container;
+    let server, displayFolder;
+
+    if (isFeed)
+    {
+      // A feed item.  Set the feed location and title info.
+      nameValue.value = aItem.name;
+      locationValue.value = aItem.url;
+      locationValidate.removeAttribute("collapsed");
+
+      // Root the location picker to the news & blogs server.
+      server = aItem.parentFolder.server;
+      displayFolder = aItem.parentFolder;
+    }
+    else
+    {
+      // A folder/container item.
+      nameValue.value = "";
+      nameValue.disabled = true;
+      locationValue.value = "";
+      locationValidate.setAttribute("collapsed", true);
+
+      server = aItem.folder.server;
+      displayFolder = aItem.folder;
+    }
+
+    // Common to both folder and feed items.
+    nameValue.disabled = aItem.container;
+    this.setFolderPicker(displayFolder, isFeed);
+
+    // Set quick mode value.
+    document.getElementById("quickMode").checked = aItem.quickMode;
+
+    // Autotag items.
+    let autotagEnable = document.getElementById("autotagEnable");
+    let autotagUsePrefix = document.getElementById("autotagUsePrefix");
+    let autotagPrefix = document.getElementById("autotagPrefix");
+    let categoryPrefsAcct = FeedUtils.getOptionsAcct(server).category;
+    if (isServer)
+      aItem.options = FeedUtils.getOptionsAcct(server);
+    let categoryPrefs = aItem.options ? aItem.options.category : null;
+
+    autotagEnable.checked = categoryPrefs && categoryPrefs.enabled;
+    autotagUsePrefix.checked = categoryPrefs && categoryPrefs.prefixEnabled;
+    autotagUsePrefix.disabled = !autotagEnable.checked;
+    autotagPrefix.disabled = autotagUsePrefix.disabled || !autotagUsePrefix.checked;
+    autotagPrefix.value = categoryPrefs && categoryPrefs.prefix ?
+                            categoryPrefs.prefix : "";
+  },
+
+  setFolderPicker: function(aFolder, aIsFeed)
+  {
+    let editFeed = document.getElementById("editFeed");
+    let folderPrettyPath = FeedUtils.getFolderPrettyPath(aFolder);
+    if (!folderPrettyPath)
+      return editFeed.disabled = true;
+
+    let selectFolder = document.getElementById("selectFolder");
+    let selectFolderPopup = document.getElementById("selectFolderPopup");
+    let selectFolderValue = document.getElementById("selectFolderValue");
+
+    selectFolder.setAttribute("hidden", !aIsFeed);
+    selectFolder._folder = aFolder;
+    selectFolderValue.setAttribute("hidden", aIsFeed);
+    selectFolderValue.setAttribute("showfilepath", false);
+
+    if (aIsFeed)
+    {
+      selectFolderPopup._ensureInitialized();
+      selectFolderPopup.selectFolder(aFolder);
+      selectFolder.setAttribute("label", folderPrettyPath);
+      selectFolder.setAttribute("uri", aFolder.URI);
+    }
+    else
+    {
+      selectFolderValue.value = folderPrettyPath;
+      selectFolderValue.setAttribute("prettypath", folderPrettyPath);
+      selectFolderValue.setAttribute("filepath", aFolder.filePath.path);
+    }
+
+    return editFeed.disabled = false;
+  },
+
+  onClickSelectFolderValue: function(aEvent)
+  {
+    let target = aEvent.target;
+    if ((("button" in aEvent) &&
+         (aEvent.button != 0 ||
+          aEvent.originalTarget.localName != "div" ||
+          target.selectionStart != target.selectionEnd)) ||
+        (aEvent.keyCode && aEvent.keyCode != aEvent.DOM_VK_RETURN))
+      return;
+
+    // Toggle between showing prettyPath and absolute filePath.
+    if (target.getAttribute("showfilepath") == "true")
+    {
+      target.setAttribute("showfilepath", false);
+      target.value = target.getAttribute("prettypath");
+    }
+    else
+    {
+      target.setAttribute("showfilepath", true);
+      target.value = target.getAttribute("filepath");
+    }
+  },
+
+  setNewFolder: function(aEvent)
+  {
+    aEvent.stopPropagation();
+    this.setFolderPicker(aEvent.target._folder, true);
+    this.editFeed();
+  },
+
+  setSummary: function(aChecked)
+  {
+    let item = this.mView.currentItem;
+    if (!item || !item.folder)
+      // Not a folder.
+      return;
+
+    if (item.folder.isServer)
+    {
+      if (document.getElementById("locationValue").value)
+        // Intent is to add a feed/folder to the account, so return.
+        return;
+
+      // An account folder.  If it changes, all non feed containing subfolders
+      // need to be updated with the new default.
+      item.folder.server.setBoolValue("quickMode", aChecked);
+      this.FolderListener.folderAdded(item.folder);
+    }
+    else if (!FeedUtils.getFeedUrlsInFolder(item.folder))
+      // Not a folder with feeds.
+      return;
+    else
+    {
+      let feedsInFolder = this.getFeedsInFolder(item.folder);
+      // Update the feeds database, for each feed in the folder.
+      feedsInFolder.forEach(function(feed) { feed.quickMode = aChecked; });
+      // Update the folder's feeds properties in the tree map.
+      item.children.forEach(function(feed) { feed.quickMode = aChecked; });
+      let ds = FeedUtils.getSubscriptionsDS(item.folder.server);
+      ds.Flush();
+    }
+
+    // Update the folder in the tree map.
+    item.quickMode = aChecked;
+    let message = FeedUtils.strings.GetStringFromName("subscribe-feedUpdated");
+    this.updateStatusItem("statusText", message);
+  },
+
+  setCategoryPrefs: function(aNode)
+  {
+    let item = this.mView.currentItem;
+    if (!item)
+      return;
+
+    let isServer = item.folder && item.folder.isServer;
+    let isFolder = item.folder && !item.folder.isServer;
+    let autotagEnable = document.getElementById("autotagEnable");
+    let autotagUsePrefix = document.getElementById("autotagUsePrefix");
+    let autotagPrefix = document.getElementById("autotagPrefix");
+    if (isFolder || (isServer && document.getElementById("locationValue").value))
+    {
+      // Intend to subscribe a feed to a folder, a value must be in the url
+      // field. Update states for addFeed() and return.
+      autotagUsePrefix.disabled = !autotagEnable.checked;
+      autotagPrefix.disabled = autotagUsePrefix.disabled || !autotagUsePrefix.checked;
+      return;
+    }
+
+    switch (aNode.id) {
+      case "autotagEnable":
+        item.options.category.enabled = aNode.checked;
+        break;
+      case "autotagUsePrefix":
+        item.options.category.prefixEnabled = aNode.checked;
+        item.options.category.prefix = autotagPrefix.value;
+        break;
+    }
+
+    if (isServer)
+    {
+      FeedUtils.setOptionsAcct(item.folder.server, item.options)
+    }
+    else
+    {
+      let feedResource = FeedUtils.rdf.GetResource(item.url);
+      let feed = new Feed(feedResource, item.parentFolder.server);
+      feed.options = item.options;
+      let ds = FeedUtils.getSubscriptionsDS(item.parentFolder.server);
+      ds.Flush();
+    }
+
+    this.updateFeedData(item);
+    let message = FeedUtils.strings.GetStringFromName("subscribe-feedUpdated");
+    this.updateStatusItem("statusText", message);
+  },
+
+  onKeyPress: function(aEvent)
+  {
+    if (aEvent.keyCode == aEvent.DOM_VK_DELETE &&
+        aEvent.target.id == "rssSubscriptionsList")
+      this.removeFeed(true);
+
+    this.clearStatusInfo();
+  },
+
+  onSelect: function ()
+  {
+    let item = this.mView.currentItem;
+    this.updateFeedData(item);
+    this.setSummaryFocus();
+    this.updateButtons(item);
+  },
+
+  updateButtons: function (aSelectedItem)
+  {
+    let item = aSelectedItem;
+    let isServer = item && item.folder && item.folder.isServer;
+    let disable = !item || !item.container || isServer ||
+                  this.mActionMode == this.kImportingOPML;
+    document.getElementById("addFeed").disabled = disable;
+    disable = !item || (item.container && !isServer) ||
+              this.mActionMode == this.kImportingOPML;
+    document.getElementById("editFeed").disabled = disable;
+    disable = !item || item.container ||
+              this.mActionMode == this.kImportingOPML;
+    document.getElementById("removeFeed").disabled = disable;
+    disable = !item || !isServer ||
+              this.mActionMode == this.kImportingOPML;
+    document.getElementById("importOPML").disabled = disable;
+    document.getElementById("exportOPML").disabled = disable;
+  },
+
+  onMouseDown: function (aEvent)
+  {
+    if (aEvent.button != 0 ||
+        aEvent.target.id == "validationText" ||
+        aEvent.target.id == "addCertException")
+      return;
+
+    this.clearStatusInfo();
+  },
+
+  setSummaryFocus: function ()
+  {
+    let item = this.mView.currentItem;
+    if (!item)
+      return;
+
+    let locationValue = document.getElementById("locationValue");
+    let quickMode = document.getElementById("quickMode");
+    let autotagEnable = document.getElementById("autotagEnable");
+    let autotagUsePrefix = document.getElementById("autotagUsePrefix");
+    let autotagPrefix = document.getElementById("autotagPrefix");
+    let isServer = item.folder && item.folder.isServer;
+    let isFolder = item.folder && !item.folder.isServer;
+    let isFeed = !item.container;
+
+    // Enable summary/autotag by default.
+    quickMode.disabled = autotagEnable.disabled = false;
+    autotagUsePrefix.disabled = !autotagEnable.checked;
+    autotagPrefix.disabled = autotagUsePrefix.disabled || !autotagUsePrefix.checked;
+
+    if (isServer)
+    {
+      let disable = locationValue.hasAttribute("focused") || locationValue.value;
+      document.getElementById("addFeed").disabled = !disable;
+      document.getElementById("editFeed").disabled = disable;
+
+    }
+    else if (isFolder)
+    {
+      if (!locationValue.hasAttribute("focused") && !locationValue.value)
+      {
+        // Enabled for a folder with feeds. Autotag disabled unless intent is
+        // to add a feed.
+        quickMode.disabled = !FeedUtils.getFeedUrlsInFolder(item.folder);
+        autotagEnable.disabled = autotagUsePrefix.disabled =
+          autotagPrefix.disabled = true;
+      }
+    }
+    else
+    {
+      // Summary is per folder.
+      quickMode.disabled = true;
+    }
+  },
+
+  removeFeed: function (aPrompt)
+  {
+    let seln = this.mView.selection;
+    if (seln.count != 1)
+      return;
+
+    let itemToRemove = this.mView.getItemAtIndex(seln.currentIndex);
+
+    if (!itemToRemove || itemToRemove.container)
+      return;
+
+    if (aPrompt)
+    {
+      // Confirm unsubscribe prompt.
+      let pTitle = FeedUtils.strings.GetStringFromName(
+                     "subscribe-confirmFeedDeletionTitle");
+      let pMessage = FeedUtils.strings.formatStringFromName(
+                       "subscribe-confirmFeedDeletion", [itemToRemove.name], 1);
+      if (Services.prompt.confirmEx(window, pTitle, pMessage,
+                                    Ci.nsIPromptService.STD_YES_NO_BUTTONS,
+                                    null, null, null, null, { }))
+        return;
+    }
+
+    FeedUtils.deleteFeed(FeedUtils.rdf.GetResource(itemToRemove.url),
+                         itemToRemove.parentFolder.server,
+                         itemToRemove.parentFolder);
+
+    // Now that we have removed the feed from the datasource, it is time to
+    // update our view layer.  Update parent folder's quickMode if necessary
+    // and remove the child from its parent folder object.
+    let parentIndex = this.mView.getParentIndex(seln.currentIndex);
+    let parentItem = this.mView.getItemAtIndex(parentIndex);
+    this.updateFolderQuickModeInView(itemToRemove, parentItem, true);
+    this.mView.removeItemAtIndex(seln.currentIndex, false);
+    let message = FeedUtils.strings.GetStringFromName("subscribe-feedRemoved");
+    this.updateStatusItem("statusText", message);
+  },
+
+
+  /**
+   * This addFeed is used by 1) Add button, 1) Update button, 3) Drop of a
+   * feed url on a folder (which can be an add or move).  If Update, the new
+   * url is added and the old removed; thus aParse is false and no new messages
+   * are downloaded, the feed is only validated and stored in the db.  If dnd,
+   * the drop folder is selected and the url is prefilled, so proceed just as
+   * though the url were entered manually.  This allows a user to see the dnd
+   * url better in case of errors.
+   * 
+   * @param  [aFeedLocation] string    - the feed url; get the url from the
+   *                                     input field if null.
+   * @param  [aFolder] nsIMsgFolder    - folder to subscribe, current selected
+   *                                     folder if null.
+   * @param  [aParse] boolean          - if true (default) parse and download
+   *                                     the feed's articles.
+   * @param  [aParams] object          - additional params.
+   * @param  [aMode] integer           - action mode (default is kSubscribeMode)
+   *                                     of the add.
+   * 
+   * @return success boolean           - true if edit checks passed and an
+   *                                     async download has been initiated.
+   */
+  addFeed: function(aFeedLocation, aFolder, aParse, aParams, aMode)
+  {
+    let message;
+    let parse = aParse == null ? true : aParse;
+    let mode = aMode == null ? this.kSubscribeMode : aMode;
+    let locationValue = document.getElementById("locationValue");
+    let quickMode = aParams && ("quickMode" in aParams) ?
+        aParams.quickMode : document.getElementById("quickMode").checked;
+    let name = aParams && ("name" in aParams) ?
+        aParams.name : document.getElementById("nameValue").value;
+    let options = aParams && ("options" in aParams) ?
+        aParams.options : null;
+
+    if (aFeedLocation)
+      locationValue.value = aFeedLocation;
+    let feedLocation = locationValue.value.trim();
+
+    if (!feedLocation)
+    {
+      message = locationValue.getAttribute("placeholder");
+      this.updateStatusItem("statusText", message);
+      return false;
+    }
+
+    if (!FeedUtils.isValidScheme(feedLocation))
+    {
+      message = FeedUtils.strings.GetStringFromName("subscribe-feedNotValid");
+      this.updateStatusItem("statusText", message);
+      return false;
+    }
+
+    let addFolder;
+    if (aFolder)
+    {
+      // For Update or if passed a folder.
+      if (aFolder instanceof Ci.nsIMsgFolder)
+        addFolder = aFolder;
+    }
+    else
+    {
+      // A folder must be selected for Add and Drop.
+      let index = this.mView.selection.currentIndex;
+      let item = this.mView.getItemAtIndex(index);
+      if (item && item.container)
+        addFolder = item.folder;
+    }
+
+    // Shouldn't happen.  Or else not passed an nsIMsgFolder.
+    if (!addFolder)
+      return false;
+
+    // Before we go any further, make sure the user is not already subscribed
+    // to this feed.
+    if (FeedUtils.feedAlreadyExists(feedLocation, addFolder.server))
+    {
+      message = FeedUtils.strings.GetStringFromName(
+                  "subscribe-feedAlreadySubscribed");
+      this.updateStatusItem("statusText", message);
+      return false;
+    }
+
+    if (!options)
+    {
+      // Not passed a param, get values from the ui.
+      options = FeedUtils.optionsTemplate;
+      options.category.enabled = document.getElementById("autotagEnable").checked;
+      options.category.prefixEnabled = document.getElementById("autotagUsePrefix").checked;
+      options.category.prefix = document.getElementById("autotagPrefix").value;
+    }
+
+    let folderURI = addFolder.isServer ? null : addFolder.URI;
+    let feedProperties = { feedName     : name,
+                           feedLocation : feedLocation,
+                           folderURI    : folderURI,
+                           server       : addFolder.server,
+                           quickMode    : quickMode,
+                           options      : options };
+
+    let feed = this.storeFeed(feedProperties);
+    if (!feed)
+      return false;
+
+    // Now validate and start downloading the feed.
+    message = FeedUtils.strings.GetStringFromName("subscribe-validating-feed");
+    this.updateStatusItem("statusText", message);
+    this.updateStatusItem("progressMeter", 0);
+    document.getElementById("addFeed").setAttribute("disabled", true);
+    this.mActionMode = mode;
+    feed.download(parse, this.mFeedDownloadCallback);
+    return true;
+  },
+
+  // Helper routine used by addFeed and importOPMLFile.
+  storeFeed: function(feedProperties)
+  {
+    let itemResource = FeedUtils.rdf.GetResource(feedProperties.feedLocation);
+    let feed = new Feed(itemResource, feedProperties.server);
+
+    // If the user specified a folder to add the feed to, then set it here.
+    if (feedProperties.folderURI)
+    {
+      let folderResource = FeedUtils.rdf.GetResource(feedProperties.folderURI);
+      if (folderResource)
+      {
+        let folder = folderResource.QueryInterface(Ci.nsIMsgFolder);
+        if (folder && !folder.isServer)
+          feed.folder = folder;
+      }
+    }
+
+    feed.title = feedProperties.feedName;
+    feed.quickMode = feedProperties.quickMode;
+    feed.options = feedProperties.options;
+    return feed;
+  },
+
+  updateAccount: function(aItem)
+  {
+    // Check to see if the categoryPrefs custom prefix string value changed.
+    let editAutotagPrefix = document.getElementById("autotagPrefix").value;
+    if (aItem.options.category.prefix != editAutotagPrefix)
+    {
+      aItem.options.category.prefix = editAutotagPrefix;
+      FeedUtils.setOptionsAcct(aItem.folder.server, aItem.options)
+      let message = FeedUtils.strings.GetStringFromName("subscribe-feedUpdated");
+      this.updateStatusItem("statusText", message);
+    }
+  },
+
+  editFeed: function()
+  {
+    let seln = this.mView.selection;
+    if (seln.count != 1)
+      return;
+
+    let itemToEdit = this.mView.getItemAtIndex(seln.currentIndex);
+    if (itemToEdit.folder && itemToEdit.folder.isServer)
+    {
+      this.updateAccount(itemToEdit)
+      return;
+    }
+
+    if (!itemToEdit || itemToEdit.container || !itemToEdit.parentFolder)
+      return;
+
+    let resource = FeedUtils.rdf.GetResource(itemToEdit.url);
+    let currentFolderServer = itemToEdit.parentFolder.server;
+    let ds = FeedUtils.getSubscriptionsDS(currentFolderServer);
+    let currentFolderURI = itemToEdit.parentFolder.URI;
+    let feed = new Feed(resource, currentFolderServer);
+    feed.folder = itemToEdit.parentFolder;
+
+    let editNameValue = document.getElementById("nameValue").value;
+    let editFeedLocation = document.getElementById("locationValue").value.trim();
+    let selectFolder = document.getElementById("selectFolder");
+    let editQuickMode = document.getElementById("quickMode").checked;
+    let editAutotagPrefix = document.getElementById("autotagPrefix").value;
+
+    if (feed.url != editFeedLocation)
+    {
+      // Updating a url.  We need to add the new url and delete the old, to
+      // ensure everything is cleaned up correctly.
+      this.addFeed(null, itemToEdit.parentFolder, false, null, this.kUpdateMode)
+      return;
+    }
+
+    // Did the user change the folder URI for storing the feed?
+    let editFolderURI = selectFolder.getAttribute("uri");
+    if (currentFolderURI != editFolderURI)
+    {
+      // Make sure the new folderpicked folder is visible.
+      this.selectFolder(selectFolder._folder);
+      // Now go back to the feed item.
+      this.selectFeed(feed, null);
+      // We need to find the index of the new parent folder.
+      let newParentIndex = this.mView.kRowIndexUndefined;
+      for (let index = 0; index < this.mView.rowCount; index++)
+      {
+        let item = this.mView.getItemAtIndex(index);
+        if (item && item.container && item.url == editFolderURI)
+        {
+          newParentIndex = index;
+          break;
+        }
+      }
+
+      if (newParentIndex != this.mView.kRowIndexUndefined)
+        this.moveCopyFeed(seln.currentIndex, newParentIndex, "move");
+
+      return;
+    }
+
+    let updated = false;
+    let message = "";
+    // Disable the button until the update completes and we process the async
+    // verify response.
+    document.getElementById("editFeed").setAttribute("disabled", true);
+
+    // Check to see if the title value changed, no blank title allowed.
+    if (feed.title != editNameValue)
+    {
+      if (!editNameValue)
+      {
+        document.getElementById("nameValue").value = feed.title;
+      }
+      else
+      {
+        feed.title = editNameValue;
+        itemToEdit.name = editNameValue;
+        seln.tree.invalidateRow(seln.currentIndex);
+        updated = true;
+      }
+    }
+
+    // Check to see if the quickMode value changed.
+    if (feed.quickMode != editQuickMode)
+    {
+      feed.quickMode = editQuickMode;
+      itemToEdit.quickMode = editQuickMode;
+      updated = true;
+    }
+
+    // Check to see if the categoryPrefs custom prefix string value changed.
+    if (itemToEdit.options.category.prefix != editAutotagPrefix &&
+        itemToEdit.options.category.prefix != null &&
+        editAutotagPrefix != "")
+    {
+      itemToEdit.options.category.prefix = editAutotagPrefix;
+      feed.options = itemToEdit.options;
+      updated = true;
+    }
+
+    let verifyDelay = 0;
+    if (updated) {
+      ds.Flush();
+      message = FeedUtils.strings.GetStringFromName("subscribe-feedUpdated");
+      this.updateStatusItem("statusText", message);
+      verifyDelay = 1500;
+    }
+
+    // Now we want to verify if the stored feed url still works. If it
+    // doesn't, show the error. Delay a bit to leave Updated message visible.
+    message = FeedUtils.strings.GetStringFromName("subscribe-validating-feed");
+    this.mActionMode = this.kVerifyUrlMode;
+    setTimeout(() => {
+      this.updateStatusItem("statusText", message);
+      this.updateStatusItem("progressMeter", "?");
+      feed.download(false, this.mFeedDownloadCallback);
+    }, verifyDelay);
+  },
+
+/**
+ * Moves or copies a feed to another folder or account.
+ * 
+ * @param  int aOldFeedIndex    - index in tree of target feed item.
+ * @param  int aNewParentIndex  - index in tree of target parent folder item.
+ * @param  string aMoveCopy     - either "move" or "copy".
+ */
+  moveCopyFeed: function(aOldFeedIndex, aNewParentIndex, aMoveCopy)
+  {
+    let moveFeed = aMoveCopy == "move";
+    let currentItem = this.mView.getItemAtIndex(aOldFeedIndex);
+    if (!currentItem ||
+        this.mView.getParentIndex(aOldFeedIndex) == aNewParentIndex)
+      // If the new parent is the same as the current parent, then do nothing.
+      return;
+
+    let currentParentIndex = this.mView.getParentIndex(aOldFeedIndex);
+    let currentParentItem = this.mView.getItemAtIndex(currentParentIndex);
+    let currentParentResource = FeedUtils.rdf.GetResource(currentParentItem.url);
+    let currentFolder = currentParentResource.QueryInterface(Ci.nsIMsgFolder);
+
+    let newParentItem = this.mView.getItemAtIndex(aNewParentIndex);
+    let newParentResource = FeedUtils.rdf.GetResource(newParentItem.url);
+    let newFolder = newParentResource.QueryInterface(Ci.nsIMsgFolder);
+
+    let ds = FeedUtils.getSubscriptionsDS(currentItem.parentFolder.server);
+    let resource = FeedUtils.rdf.GetResource(currentItem.url);
+
+    let accountMoveCopy = false;
+    if (currentFolder.rootFolder.URI == newFolder.rootFolder.URI)
+    {
+      // Moving within the same account/feeds db.
+      if (newFolder.isServer || !moveFeed)
+        // No moving to account folder if already in the account; can only move,
+        // not copy, to folder in the same account.
+        return;
+
+      // Unassert the older URI, add an assertion for the new parent URI.
+      ds.Change(resource, FeedUtils.FZ_DESTFOLDER,
+                currentParentResource, newParentResource);
+      ds.Flush();
+
+      // Update folderpane favicons.
+      FeedUtils.setFolderPaneProperty(currentFolder, "favicon", null, "row");
+      FeedUtils.setFolderPaneProperty(newFolder, "favicon", null, "row");
+    }
+    else
+    {
+      // Moving/copying to a new account.  If dropping on the account folder,
+      // a new subfolder is created if necessary.
+      accountMoveCopy = true;
+      let mode = moveFeed ? this.kMoveMode : this.kCopyMode;
+      let params = {quickMode: currentItem.quickMode,
+                    name:      currentItem.name,
+                    options:   currentItem.options};
+      // Subscribe to the new folder first.  If it already exists in the
+      // account or on error, return.
+      if (!this.addFeed(currentItem.url, newFolder, false, params, mode))
+        return;
+      // Unsubscribe the feed from the old folder, if add to the new folder
+      // is successfull, and doing a move.
+      if (moveFeed)
+        FeedUtils.deleteFeed(FeedUtils.rdf.GetResource(currentItem.url),
+                             currentItem.parentFolder.server,
+                             currentItem.parentFolder);
+    }
+
+    // Update local favicons.
+    currentParentItem.favicon = newParentItem.favicon = null;
+
+    // Finally, update our view layer.  Update old parent folder's quickMode
+    // and remove the old row, if move.  Otherwise no change to the view.
+    if (moveFeed)
+    {
+      this.updateFolderQuickModeInView(currentItem, currentParentItem, true);
+      this.mView.removeItemAtIndex(aOldFeedIndex, true);
+      if (aNewParentIndex > aOldFeedIndex)
+        aNewParentIndex--;
+    }
+
+    if (accountMoveCopy)
+    {
+      // If a cross account move/copy, download callback will update the view
+      // with the new location.  Preselect folder/mode for callback.
+      this.selectFolder(newFolder, { parentIndex: aNewParentIndex });
+      return;
+    }
+
+    // Add the new row location to the view.
+    currentItem.level = newParentItem.level + 1;
+    currentItem.parentFolder = newFolder;
+    this.updateFolderQuickModeInView(currentItem, newParentItem, false);
+    newParentItem.children.push(currentItem);
+
+    if (newParentItem.open)
+      // Close the container, selecting the feed will rebuild the view rows.
+      this.mView.toggle(aNewParentIndex);
+
+    this.selectFeed({folder: newParentItem.folder, url: currentItem.url},
+                    aNewParentIndex);
+
+    let message = FeedUtils.strings.GetStringFromName("subscribe-feedMoved");
+    this.updateStatusItem("statusText", message);
+  },
+
+  updateFolderQuickModeInView: function (aFeedItem, aParentItem, aRemove)
+  {
+    let feedItem = aFeedItem;
+    let parentItem = aParentItem;
+    let feedUrlArray = FeedUtils.getFeedUrlsInFolder(feedItem.parentFolder);
+    let feedsInFolder = feedUrlArray ? feedUrlArray.length : 0;
+
+    if (aRemove && feedsInFolder < 1)
+      // Removed only feed in folder; set quickMode to server default.
+      parentItem.quickMode = parentItem.folder.server.getBoolValue("quickMode");
+
+    if (!aRemove)
+    {
+      // Just added a feed to a folder.  If there are already feeds in the
+      // folder, the feed must reflect the parent's quickMode.  If it is the
+      // only feed, update the parent folder to the feed's quickMode.
+      if (feedsInFolder > 1)
+      {
+        let feedResource = FeedUtils.rdf.GetResource(feedItem.url);
+        let feed = new Feed(feedResource, feedItem.parentFolder.server);
+        feed.quickMode = parentItem.quickMode;
+        feedItem.quickMode = parentItem.quickMode;
+      }
+      else
+        parentItem.quickMode = feedItem.quickMode;
+    }
+  },
+
+  onDragStart: function (aEvent)
+  {
+    // Get the selected feed article (if there is one).
+    let seln = this.mView.selection;
+    if (seln.count != 1)
+      return;
+
+    // Only initiate a drag if the item is a feed (ignore folders/containers).
+    let item = this.mView.getItemAtIndex(seln.currentIndex);
+    if (!item || item.container)
+      return;
+
+    aEvent.dataTransfer.setData("text/x-moz-feed-index", seln.currentIndex);
+    aEvent.dataTransfer.effectAllowed = "copyMove";
+  },
+
+  onDragOver: function (aEvent)
+  {
+    this.mView._currentDataTransfer = aEvent.dataTransfer;
+  },
+
+  mFeedDownloadCallback:
+  {
+    mSubscribeMode: true,
+    downloaded: function(feed, aErrorCode)
+    {
+      // Offline check is done in the context of 3pane, return to the subscribe
+      // window once the modal prompt is dispatched.
+      window.focus();
+      // Feed is null if our attempt to parse the feed failed.
+      let message = "";
+      let win = FeedSubscriptions;
+      if (aErrorCode == FeedUtils.kNewsBlogSuccess ||
+          aErrorCode == FeedUtils.kNewsBlogNoNewItems)
+      {
+        win.updateStatusItem("progressMeter", 100);
+
+        if (win.mActionMode == win.kVerifyUrlMode) {
+          // Just checking for errors, if none bye. The (non error) code
+          // kNewsBlogNoNewItems can only happen in verify mode.
+          win.mActionMode = null;
+          win.clearStatusInfo();
+          message = FeedUtils.strings.GetStringFromName("subscribe-feedVerified");
+          win.updateStatusItem("statusText", message);
+          document.getElementById("editFeed").removeAttribute("disabled");
+          return;
+        }
+
+        // Add the feed to the databases.
+        FeedUtils.addFeed(feed);
+
+        // Now add the feed to our view.  If adding, the current selection will
+        // be a folder; if updating it will be a feed.  No need to rebuild the
+        // entire view, that is too jarring.
+        let curIndex = win.mView.selection.currentIndex;
+        let curItem = win.mView.getItemAtIndex(curIndex);
+        if (curItem)
+        {
+          let parentIndex, parentItem, newItem, level;
+          let rows = win.mFeedContainers;
+          if (curItem.container)
+          {
+            // Open the container, if it exists.
+            let folderExists = win.selectFolder(feed.folder,
+                                                { parentIndex: curIndex });
+            if (!folderExists)
+            {
+              // This means a new folder was created.
+              parentIndex = curIndex;
+              parentItem = curItem;
+              level = curItem.level + 1;
+              newItem = win.makeFolderObject(feed.folder, level);
+            }
+            else
+            {
+              // If a folder happens to exist which matches one that would
+              // have been created, the feed system reuses it.  Get the
+              // current item again if reusing a previously unselected folder.
+              curIndex = win.mView.selection.currentIndex;
+              curItem = win.mView.getItemAtIndex(curIndex);
+              parentIndex = curIndex;
+              parentItem = curItem;
+              level = curItem.level + 1;
+              newItem = win.makeFeedObject(feed, feed.folder, level);
+            }
+          }
+          else
+          {
+            // Adding a feed.
+            parentIndex = win.mView.getParentIndex(curIndex);
+            parentItem = win.mView.getItemAtIndex(parentIndex);
+            level = curItem.level;
+            newItem = win.makeFeedObject(feed, feed.folder, level);
+          }
+
+          if (!newItem.container)
+            win.updateFolderQuickModeInView(newItem, parentItem, false);
+          parentItem.children.push(newItem);
+          parentItem.children = win.folderItemSorter(parentItem.children);
+          parentItem.favicon = null;
+
+          if (win.mActionMode == win.kSubscribeMode)
+            message = FeedUtils.strings.GetStringFromName(
+                        "subscribe-feedAdded");
+          if (win.mActionMode == win.kUpdateMode)
+          {
+            win.removeFeed(false);
+            message = FeedUtils.strings.GetStringFromName(
+                        "subscribe-feedUpdated");
+          }
+          if (win.mActionMode == win.kMoveMode)
+            message = FeedUtils.strings.GetStringFromName(
+                        "subscribe-feedMoved");
+          if (win.mActionMode == win.kCopyMode)
+            message = FeedUtils.strings.GetStringFromName(
+                        "subscribe-feedCopied");
+
+          win.selectFeed(feed, parentIndex);
+        }
+      }
+      else
+      {
+        // Non success.  Remove intermediate traces from the feeds database.
+        // But only if we're not in verify mode.
+        if (win.mActionMode != win.kVerifyUrlMode &&
+            feed && feed.url && feed.server)
+          FeedUtils.deleteFeed(FeedUtils.rdf.GetResource(feed.url),
+                               feed.server,
+                               feed.server.rootFolder);
+
+        if (aErrorCode == FeedUtils.kNewsBlogInvalidFeed)
+          message = FeedUtils.strings.GetStringFromName(
+                      "subscribe-feedNotValid");
+        if (aErrorCode == FeedUtils.kNewsBlogRequestFailure)
+          message = FeedUtils.strings.GetStringFromName(
+                      "subscribe-networkError");
+        if (aErrorCode == FeedUtils.kNewsBlogFileError)
+          message = FeedUtils.strings.GetStringFromName(
+                      "subscribe-errorOpeningFile");
+        if (aErrorCode == FeedUtils.kNewsBlogBadCertError) {
+          let host = Services.io.newURI(feed.url, null, null).host;
+          message = FeedUtils.strings.formatStringFromName(
+                      "newsblog-badCertError", [host], 1);
+        }
+        if (aErrorCode == FeedUtils.kNewsBlogNoAuthError)
+          message = FeedUtils.strings.GetStringFromName(
+                      "subscribe-noAuthError");
+
+        if (win.mActionMode != win.kUpdateMode &&
+            win.mActionMode != win.kVerifyUrlMode)
+          // Re-enable the add button if subscribe failed.
+          document.getElementById("addFeed").removeAttribute("disabled");
+        if (win.mActionMode == win.kVerifyUrlMode)
+          // Re-enable the update button if verify failed.
+          document.getElementById("editFeed").removeAttribute("disabled");
+      }
+
+      win.mActionMode = null;
+      win.clearStatusInfo();
+      let code = feed.url.startsWith("http") ? aErrorCode : null;
+      win.updateStatusItem("statusText", message, code);
+    },
+
+    // This gets called after the RSS parser finishes storing a feed item to
+    // disk.  aCurrentFeedItems is an integer corresponding to how many feed
+    // items have been downloaded so far.  aMaxFeedItems is an integer
+    // corresponding to the total number of feed items to download.
+    onFeedItemStored: function (feed, aCurrentFeedItems, aMaxFeedItems)
+    {
+      window.focus();
+      let message = FeedUtils.strings.formatStringFromName(
+                      "subscribe-gettingFeedItems",
+                      [aCurrentFeedItems, aMaxFeedItems], 2);
+      FeedSubscriptions.updateStatusItem("statusText", message);
+      this.onProgress(feed, aCurrentFeedItems, aMaxFeedItems);
+    },
+
+    onProgress: function(feed, aProgress, aProgressMax, aLengthComputable)
+    {
+      FeedSubscriptions.updateStatusItem("progressMeter",
+                                         (aProgress * 100) / aProgressMax);
+    }
+  },
+
+  // Status routines.
+  updateStatusItem: function(aID, aValue, aErrorCode)
+  {
+    let el = document.getElementById(aID);
+    if (el.getAttribute("collapsed"))
+      el.removeAttribute("collapsed");
+
+    if (aID == "progressMeter")
+      el.setAttribute("mode", aValue == "?" ? "undetermined" : "determined");
+
+    if (aID == "statusText")
+      el.textContent = aValue;
+    else
+      el.value = aValue;
+
+    el = document.getElementById("validationText");
+    if (aErrorCode == FeedUtils.kNewsBlogInvalidFeed)
+      el.removeAttribute("collapsed");
+    else
+      el.setAttribute("collapsed", true);
+
+    el = document.getElementById("addCertException");
+    if (aErrorCode == FeedUtils.kNewsBlogBadCertError)
+      el.removeAttribute("collapsed");
+    else
+      el.setAttribute("collapsed", true);
+  },
+
+  clearStatusInfo: function()
+  {
+    document.getElementById("statusText").textContent = "";
+    document.getElementById("progressMeter").collapsed = true;
+    document.getElementById("validationText").collapsed = true;
+    document.getElementById("addCertException").collapsed = true;
+  },
+
+  checkValidation: function(aEvent)
+  {
+    if (aEvent.button != 0)
+      return;
+
+    let validationSite = "http://validator.w3.org";
+    let validationQuery = "http://validator.w3.org/feed/check.cgi?url=";
+
+    if (this.mMainWin)
+    {
+      let tabmail = this.mMainWin.document.getElementById("tabmail");
+      if (tabmail)
+      {
+        let feedLocation = document.getElementById("locationValue").value;
+        let url = validationQuery + encodeURIComponent(feedLocation);
+
+        this.mMainWin.focus();
+        this.mMainWin.openContentTab(url, "tab", "^" + validationSite);
+        FeedUtils.log.debug("checkValidation: query url - " + url);
+      }
+    }
+    aEvent.stopPropagation();
+  },
+
+  addCertExceptionDialog: function()
+  {
+    let feedURL = document.getElementById("locationValue").value.trim();
+    let params = { exceptionAdded : false,
+                   location: feedURL,
+                   prefetchCert: true };
+    window.openDialog("chrome://pippki/content/exceptionDialog.xul",
+                      "", "chrome,centerscreen,modal", params);
+    if (params.exceptionAdded)
+      this.clearStatusInfo();
+  },
+
+  // Listener for folder pane changes.
+  FolderListener: {
+    get feedWindow() {
+      let subscriptionsWindow =
+        Services.wm.getMostRecentWindow("Mail:News-BlogSubscriptions");
+      return subscriptionsWindow ? subscriptionsWindow.FeedSubscriptions : null;
+    },
+
+    get currentSelectedIndex() {
+      return this.feedWindow ? this.feedWindow.mView.selection.currentIndex : -1;
+    },
+
+    get currentSelectedItem() {
+      return this.feedWindow ? this.feedWindow.mView.currentItem : null;
+    },
+
+    folderAdded: function(aFolder)
+    {
+      if (aFolder.server.type != "rss" ||
+          FeedUtils.isInTrash(aFolder))
+        return;
+
+      let parentFolder = aFolder.isServer ? aFolder : aFolder.parent;
+      FeedUtils.log.debug("folderAdded: folder:parent - " + aFolder.name + ":" +
+                          (parentFolder ? parentFolder.filePath.path : "(null)"));
+
+      if (!parentFolder || !this.feedWindow)
+        return;
+
+      let feedWindow = this.feedWindow;
+      let curSelIndex = this.currentSelectedIndex;
+      let curSelItem = this.currentSelectedItem;
+      let firstVisRow = feedWindow.mView.treeBox.getFirstVisibleRow();
+      let indexInView = feedWindow.mView.getItemInViewIndex(parentFolder);
+      let open = indexInView != null;
+
+      if (aFolder.isServer)
+      {
+        if (indexInView != null)
+          // Existing account root folder in the view.
+          open = feedWindow.mView.getItemAtIndex(indexInView).open;
+        else
+        {
+          // Add the account root folder to the view.
+          feedWindow.mFeedContainers.push(feedWindow.makeFolderObject(parentFolder, 0));
+          feedWindow.mView.mRowCount++;
+          feedWindow.mTree.view = feedWindow.mView;
+          feedWindow.mView.treeBox.scrollToRow(firstVisRow);
+          return;
+        }
+      }
+
+      // Rebuild the added folder's parent item in the tree row cache.
+      feedWindow.selectFolder(parentFolder, { select: false,
+                                              open: open,
+                                              newFolder: parentFolder });
+
+      if (indexInView == null || !curSelItem)
+        // Folder isn't in the tree view, no need to update the view.
+        return;
+
+      let parentIndex = feedWindow.mView.getParentIndex(indexInView);
+      if (parentIndex == feedWindow.mView.kRowIndexUndefined)
+        // Root folder is its own parent.
+        parentIndex = indexInView;
+      if (open)
+      {
+        // Close an open parent (or root) folder.
+        feedWindow.mView.toggle(parentIndex);
+        feedWindow.mView.toggleOpenState(parentIndex);
+      }
+      feedWindow.mView.treeBox.scrollToRow(firstVisRow);
+
+      if (curSelItem.container)
+        feedWindow.selectFolder(curSelItem.folder, { open: curSelItem.open });
+      else
+        feedWindow.selectFeed({ folder: curSelItem.parentFolder,
+                                url: curSelItem.url }, parentIndex);
+    },
+
+    folderDeleted: function(aFolder)
+    {
+      if (aFolder.server.type != "rss" || FeedUtils.isInTrash(aFolder))
+        return;
+
+      FeedUtils.log.debug("folderDeleted: folder - " + aFolder.name);
+      if (!this.feedWindow)
+        return;
+
+      let feedWindow = this.feedWindow;
+      let curSelIndex = this.currentSelectedIndex;
+      let indexInView = feedWindow.mView.getItemInViewIndex(aFolder);
+      let open = indexInView != null;
+
+      // Delete the folder from the tree row cache.
+      feedWindow.selectFolder(aFolder, { select: false, open: false, remove: true });
+
+      if (!open || curSelIndex < 0)
+        // Folder isn't in the tree view, no need to update the view.
+        return;
+
+      let select =
+        indexInView == curSelIndex ||
+        feedWindow.mView.isIndexChildOfParentIndex(indexInView, curSelIndex);
+      feedWindow.mView.removeItemAtIndex(indexInView, !select);
+    },
+
+    folderRenamed: function(aOrigFolder, aNewFolder)
+    {
+      if (aNewFolder.server.type != "rss" || FeedUtils.isInTrash(aNewFolder))
+        return;
+
+      FeedUtils.log.debug("folderRenamed: old:new - " +
+                          aOrigFolder.name + ":" + aNewFolder.name);
+      if (!this.feedWindow)
+        return;
+
+      let feedWindow = this.feedWindow;
+      let curSelIndex = this.currentSelectedIndex;
+      let curSelItem = this.currentSelectedItem;
+      let firstVisRow = feedWindow.mView.treeBox.getFirstVisibleRow();
+      let indexInView = feedWindow.mView.getItemInViewIndex(aOrigFolder);
+      let open = indexInView != null;
+
+      // Rebuild the renamed folder's item in the tree row cache.
+      feedWindow.selectFolder(aOrigFolder, { select: false,
+                                             open: open,
+                                             newFolder: aNewFolder });
+
+      if (!open || !curSelItem)
+        // Folder isn't in the tree view, no need to update the view.
+        return;
+
+      let select =
+        indexInView == curSelIndex ||
+        feedWindow.mView.isIndexChildOfParentIndex(indexInView, curSelIndex);
+      let parentIndex = feedWindow.mView.getParentIndex(indexInView);
+      if (parentIndex == feedWindow.mView.kRowIndexUndefined)
+        // Root folder is its own parent.
+        parentIndex = indexInView;
+      feedWindow.mView.toggle(parentIndex);
+      feedWindow.mView.toggleOpenState(parentIndex);
+      feedWindow.mView.treeBox.scrollToRow(firstVisRow);
+
+      if (curSelItem.container) {
+        if (curSelItem.folder == aOrigFolder)
+          feedWindow.selectFolder(aNewFolder, { open: curSelItem.open });
+        else if (select)
+          feedWindow.mView.selection.select(indexInView);
+        else
+          feedWindow.selectFolder(curSelItem.folder, { open: curSelItem.open });
+      }
+      else
+        feedWindow.selectFeed({ folder: curSelItem.parentFolder.rootFolder,
+                                url: curSelItem.url }, parentIndex);
+    },
+
+    folderMoveCopyCompleted: function(aMove, aSrcFolder, aDestFolder)
+    {
+      if (aDestFolder.server.type != "rss")
+        return;
+
+      FeedUtils.log.debug("folderMoveCopyCompleted: move:src:dest - " +
+                          aMove + ":" + aSrcFolder.name + ":" + aDestFolder.name);
+      if (!this.feedWindow)
+        return;
+
+      let feedWindow = this.feedWindow;
+      let curSelIndex = this.currentSelectedIndex;
+      let curSelItem = this.currentSelectedItem;
+      let firstVisRow = feedWindow.mView.treeBox.getFirstVisibleRow();
+      let indexInView = feedWindow.mView.getItemInViewIndex(aSrcFolder);
+      let destIndexInView = feedWindow.mView.getItemInViewIndex(aDestFolder);
+      let open = indexInView != null || destIndexInView != null;
+      let parentIndex = feedWindow.mView.getItemInViewIndex(aDestFolder.parent ||
+                                                            aDestFolder);
+      let select =
+        indexInView == curSelIndex ||
+        feedWindow.mView.isIndexChildOfParentIndex(indexInView, curSelIndex);
+
+      if (aMove)
+      {
+        this.folderDeleted(aSrcFolder);
+        if (aDestFolder.getFlag(Ci.nsMsgFolderFlags.Trash))
+          return;
+      }
+
+      setTimeout(function() {
+        // State on disk needs to settle before a folder object can be rebuilt.
+        feedWindow.selectFolder(aDestFolder, { select: false,
+                                               open: open || select,
+                                               newFolder: aDestFolder });
+
+        if (!open || !curSelItem)
+          // Folder isn't in the tree view, no need to update the view.
+          return;
+
+        feedWindow.mView.toggle(parentIndex);
+        feedWindow.mView.toggleOpenState(parentIndex);
+        feedWindow.mView.treeBox.scrollToRow(firstVisRow);
+
+        if (curSelItem.container) {
+          if (curSelItem.folder == aSrcFolder || select)
+            feedWindow.selectFolder(aDestFolder, { open: true });
+          else
+            feedWindow.selectFolder(curSelItem.folder, { open: curSelItem.open });
+        }
+        else
+          feedWindow.selectFeed({ folder: curSelItem.parentFolder.rootFolder,
+                                  url: curSelItem.url }, null);
+      }, 50);
+    }
+  },
+
+  /* *************************************************************** */
+  /* OPML Functions                                                  */
+  /* *************************************************************** */
+
+  get brandShortName() {
+    let brandBundle = document.getElementById("bundle_brand");
+    return brandBundle ? brandBundle.getString("brandShortName") : "";
+  },
+
+/**
+ * Export feeds as opml file Save As filepicker function.
+ * 
+ * @param  bool aList - if true, exporting as list; if false (default)
+ *                      exporting feeds in folder structure - used for title.
+ * @return nsILocalFile or null.
+ */
+  opmlPickSaveAsFile: function(aList)
+  {
+    let accountName = this.mRSSServer.rootFolder.prettyName;
+    let fileName = FeedUtils.strings.formatStringFromName(
+                     "subscribe-OPMLExportDefaultFileName",
+                     [this.brandShortName, accountName], 2);
+    let title = aList ? FeedUtils.strings.formatStringFromName(
+                          "subscribe-OPMLExportTitleList", [accountName], 1) :
+                        FeedUtils.strings.formatStringFromName(
+                          "subscribe-OPMLExportTitleStruct", [accountName], 1);
+    let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
+
+    fp.defaultString = fileName;
+    fp.defaultExtension = "opml";
+    if (this.opmlLastSaveAsDir && (this.opmlLastSaveAsDir instanceof Ci.nsILocalFile))
+      fp.displayDirectory = this.opmlLastSaveAsDir;
+
+    let opmlFilterText = FeedUtils.strings.GetStringFromName(
+                           "subscribe-OPMLExportOPMLFilesFilterText");
+    fp.appendFilter(opmlFilterText, "*.opml");
+    fp.appendFilters(Ci.nsIFilePicker.filterAll);
+    fp.filterIndex = 0;
+    fp.init(window, title, Ci.nsIFilePicker.modeSave);
+
+    if (fp.show() != Ci.nsIFilePicker.returnCancel && fp.file)
+    {
+      this.opmlLastSaveAsDir = fp.file.parent;
+      return fp.file;
+    }
+
+    return null;
+  },
+
+/**
+ * Import feeds opml file Open filepicker function.
+ * 
+ * @return nsILocalFile or null.
+ */
+  opmlPickOpenFile: function()
+  {
+    let title = FeedUtils.strings.GetStringFromName("subscribe-OPMLImportTitle");
+    let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
+
+    fp.defaultString = "";
+    if (this.opmlLastOpenDir && (this.opmlLastOpenDir instanceof Ci.nsILocalFile))
+      fp.displayDirectory = this.opmlLastOpenDir;
+
+    let opmlFilterText = FeedUtils.strings.GetStringFromName(
+                           "subscribe-OPMLExportOPMLFilesFilterText");
+    fp.appendFilter(opmlFilterText, "*.opml");
+    fp.appendFilters(Ci.nsIFilePicker.filterXML);
+    fp.appendFilters(Ci.nsIFilePicker.filterAll);
+    fp.init(window, title, Ci.nsIFilePicker.modeOpen);
+
+    if (fp.show() != Ci.nsIFilePicker.returnCancel && fp.file)
+    {
+      this.opmlLastOpenDir = fp.file.parent;
+      return fp.file;
+    }
+
+    return null;
+  },
+
+  exportOPML: function(aEvent)
+  {
+    // Account folder must be selected.
+    let item = this.mView.currentItem;
+    if (!item || !item.folder || !item.folder.isServer)
+      return;
+
+    this.mRSSServer = item.folder.server;
+    let rootFolder = this.mRSSServer.rootFolder;
+    let exportAsList = aEvent.ctrlKey;
+    let SPACES2 = "  ";
+    let SPACES4 = "    ";
+
+    if (this.mRSSServer.rootFolder.hasSubFolders)
+    {
+      let opmlDoc = document.implementation.createDocument("", "opml", null);
+      let opmlRoot = opmlDoc.documentElement;
+      opmlRoot.setAttribute("version", "1.0");
+      opmlRoot.setAttribute("xmlns:fz", "urn:forumzilla:");
+
+      this.generatePPSpace(opmlRoot, SPACES2);
+
+      // Make the <head> element.
+      let head = opmlDoc.createElement("head");
+      this.generatePPSpace(head, SPACES4);
+      let titleText = FeedUtils.strings.formatStringFromName(
+                        "subscribe-OPMLExportFileDialogTitle",
+                        [this.brandShortName, rootFolder.prettyName], 2);
+      let title = opmlDoc.createElement("title");
+      title.appendChild(opmlDoc.createTextNode(titleText));
+      head.appendChild(title);
+      this.generatePPSpace(head, SPACES4);
+      let dt = opmlDoc.createElement("dateCreated");
+      dt.appendChild(opmlDoc.createTextNode((new Date()).toUTCString()));
+      head.appendChild(dt);
+      this.generatePPSpace(head, SPACES2);
+      opmlRoot.appendChild(head);
+
+      this.generatePPSpace(opmlRoot, SPACES2);
+
+      // Add <outline>s to the <body>.
+      let body = opmlDoc.createElement("body");
+      if (exportAsList)
+        this.generateOutlineList(rootFolder, body, SPACES4.length + 2);
+      else
+        this.generateOutlineStruct(rootFolder, body, SPACES4.length);
+
+      this.generatePPSpace(body, SPACES2);
+
+      if (!body.childElementCount)
+        // No folders/feeds.
+        return;
+
+      opmlRoot.appendChild(body);
+      this.generatePPSpace(opmlRoot, "");
+
+      let serializer = new XMLSerializer();
+
+      if (FeedUtils.log.level <= Log4Moz.Level.Debug)
+        FeedUtils.log.debug("exportOPML: opmlDoc -\n" +
+                            serializer.serializeToString(opmlDoc) + "\n");
+
+      // Get file to save from filepicker.
+      let saveAsFile = this.opmlPickSaveAsFile(exportAsList);
+      if (!saveAsFile)
+        return;
+
+      let fos = FileUtils.openSafeFileOutputStream(saveAsFile);
+      serializer.serializeToStream(opmlDoc, fos, "utf-8");
+      FileUtils.closeSafeFileOutputStream(fos);
+
+      let statusReport = FeedUtils.strings.formatStringFromName(
+                           "subscribe-OPMLExportDone", [saveAsFile.path], 1);
+      this.updateStatusItem("statusText", statusReport);
+    }
+  },
+
+  generatePPSpace: function(aNode, indentString)
+  {
+    aNode.appendChild(aNode.ownerDocument.createTextNode("\n"));
+    aNode.appendChild(aNode.ownerDocument.createTextNode(indentString));
+  },
+
+  generateOutlineList: function(baseFolder, parent, indentLevel)
+  {
+    // Pretty printing.
+    let indentString = " ".repeat(indentLevel - 2);
+
+    let feedOutline;
+    let folderEnumerator = baseFolder.subFolders;
+    while (folderEnumerator.hasMoreElements())
+    {
+      let folder = folderEnumerator.getNext().QueryInterface(Ci.nsIMsgFolder);
+      FeedUtils.log.debug("generateOutlineList: folder - " +
+                          folder.filePath.path);
+      if (!(folder instanceof Ci.nsIMsgFolder) ||
+          folder.getFlag(Ci.nsMsgFolderFlags.Trash) ||
+          folder.getFlag(Ci.nsMsgFolderFlags.Virtual))
+        continue;
+
+      FeedUtils.log.debug("generateOutlineList: CONTINUE folderName - " +
+                          folder.name);
+
+      if (folder.hasSubFolders)
+      {
+        FeedUtils.log.debug("generateOutlineList: has subfolders - " +
+                            folder.name);
+        // Recurse.
+        this.generateOutlineList(folder, parent, indentLevel);
+      }
+
+      // Add outline elements with xmlUrls.
+      let feeds = this.getFeedsInFolder(folder);
+      for (let feed of feeds)
+      {
+        FeedUtils.log.debug("generateOutlineList: folder has FEED url - " +
+                            folder.name + " : " + feed.url);
+        feedOutline = this.exportOPMLOutline(feed, parent.ownerDocument);
+        this.generatePPSpace(parent, indentString);
+        parent.appendChild(feedOutline);
+      }
+    }
+  },
+
+  generateOutlineStruct: function(baseFolder, parent, indentLevel)
+  {
+    // Pretty printing.
+    function indentString(len) { return " ".repeat(len - 2); };
+
+    let folderOutline, feedOutline;
+    let folderEnumerator = baseFolder.subFolders;
+    while (folderEnumerator.hasMoreElements())
+    {
+      let folder = folderEnumerator.getNext().QueryInterface(Ci.nsIMsgFolder);
+      FeedUtils.log.debug("generateOutlineStruct: folder - " +
+                          folder.filePath.path);
+      if (!(folder instanceof Ci.nsIMsgFolder) ||
+          folder.getFlag(Ci.nsMsgFolderFlags.Trash) ||
+          folder.getFlag(Ci.nsMsgFolderFlags.Virtual))
+        continue;
+
+      FeedUtils.log.debug("generateOutlineStruct: CONTINUE folderName - " +
+                          folder.name);
+
+      // Make a folder outline element.
+      folderOutline = parent.ownerDocument.createElement("outline");
+      folderOutline.setAttribute("title", folder.prettyName);
+      this.generatePPSpace(parent, indentString(indentLevel + 2));
+
+      if (folder.hasSubFolders)
+      {
+        FeedUtils.log.debug("generateOutlineStruct: has subfolders - " +
+                            folder.name);
+        // Recurse.
+        this.generateOutlineStruct(folder, folderOutline, indentLevel + 2);
+      }
+
+      let feeds = this.getFeedsInFolder(folder);
+      for (let feed of feeds)
+      {
+        // Add feed outline elements with xmlUrls.
+        FeedUtils.log.debug("generateOutlineStruct: folder has FEED url - "+
+                            folder.name + " : " + feed.url);
+        feedOutline = this.exportOPMLOutline(feed, parent.ownerDocument);
+        this.generatePPSpace(folderOutline, indentString(indentLevel + 4));
+        folderOutline.appendChild(feedOutline);
+      }
+
+      parent.appendChild(folderOutline);
+    }
+  },
+
+  exportOPMLOutline: function(aFeed, aDoc)
+  {
+    let outRv = aDoc.createElement("outline");
+    outRv.setAttribute("type", "rss");
+    outRv.setAttribute("title", aFeed.title);
+    outRv.setAttribute("text", aFeed.title);
+    outRv.setAttribute("version", "RSS");
+    outRv.setAttribute("fz:quickMode", aFeed.quickMode);
+    outRv.setAttribute("fz:options", JSON.stringify(aFeed.options));
+    outRv.setAttribute("xmlUrl", aFeed.url);
+    outRv.setAttribute("htmlUrl", aFeed.link);
+    return outRv;
+  },
+
+  importOPML: function()
+  {
+    // Account folder must be selected in subscribe dialog.
+    let item = this.mView ? this.mView.currentItem : null;
+    if (!item || !item.folder || !item.folder.isServer)
+      return;
+
+    let server = item.folder.server;
+    // Get file to open from filepicker.
+    let openFile = this.opmlPickOpenFile();
+    if (!openFile)
+      return;
+
+    this.mActionMode = this.kImportingOPML;
+    this.updateButtons(null);
+    this.selectFolder(item.folder, { select: false, open: true });
+    let statusReport = FeedUtils.strings.GetStringFromName("subscribe-loading");
+    this.updateStatusItem("statusText", statusReport);
+    // If there were a getElementsByAttribute in html, we could go determined...
+    this.updateStatusItem("progressMeter", "?");
+
+    if (!this.importOPMLFile(openFile, server, this.importOPMLFinished)) {
+      this.mActionMode = null;
+      this.updateButtons(item);
+      this.clearStatusInfo();
+    }
+  },
+
+/**
+ * Import opml file into a feed account.  Used by the Subscribe dialog and
+ * the Import wizard.
+ * 
+ * @param  nsILocalFile aFile           - the opml file.
+ * @param  nsIMsgIncomingServer aServer - the account server.
+ * @param  func aCallback               - callback function.
+ * 
+ * @return bool                         - false if error.
+ */
+  importOPMLFile: function(aFile, aServer, aCallback)
+  {
+    if (aServer && (aServer instanceof Ci.nsIMsgIncomingServer))
+      this.mRSSServer = aServer;
+
+    if (!aFile || !this.mRSSServer || !aCallback)
+      return false;
+
+    let opmlDom, statusReport;
+    let stream = Cc["@mozilla.org/network/file-input-stream;1"].
+                 createInstance(Ci.nsIFileInputStream);
+
+    // Read in file as raw bytes, so Expat can do the decoding for us.
+    try {
+      stream.init(aFile, FileUtils.MODE_RDONLY, FileUtils.PERMS_FILE, 0);
+      let parser = new DOMParser();
+      opmlDom = parser.parseFromStream(stream, null, stream.available(),
+                                       "application/xml");
+    }
+    catch(e) {
+      statusReport = FeedUtils.strings.GetStringFromName(
+                       "subscribe-errorOpeningFile");
+      Services.prompt.alert(window, null, statusReport);
+      return false;
+    }
+    finally {
+      stream.close();
+    }
+
+    let body = opmlDom ? opmlDom.querySelector("body") : null;
+
+    // Return if the OPML file is invalid or empty.
+    if (!body || !body.childElementCount ||
+      opmlDom.documentElement.tagName != "opml")
+    {
+      statusReport = FeedUtils.strings.formatStringFromName(
+                       "subscribe-OPMLImportInvalidFile", [aFile.leafName], 1);
+      Services.prompt.alert(window, null, statusReport);
+      return false;
+    }
+
+    this.importOPMLOutlines(body, this.mRSSServer, aCallback);
+    return true;
+  },
+
+  importOPMLOutlines: function(aBody, aRSSServer, aCallback)
+  {
+    let win = this;
+    let rssServer = aRSSServer;
+    let callback = aCallback;
+    let outline, feedFolder;
+    let badTag = false;
+    let firstFeedInFolderQuickMode = null;
+    let lastFolder;
+    let feedsAdded = 0;
+    let rssOutlines = 0;
+    let folderOutlines = 0;
+
+    function processor(aParentNode, aParentFolder)
+    {
+      FeedUtils.log.trace("importOPMLOutlines: PROCESSOR tag:name:childs - " +
+                          aParentNode.tagName + ":" +
+                          aParentNode.getAttribute("text") + ":" +
+                          aParentNode.childElementCount);
+      while (true)
+      {
+        if (aParentNode.tagName == "body" && !aParentNode.childElementCount)
+        {
+          // Finished.
+          let statusReport = win.importOPMLStatus(feedsAdded, rssOutlines);
+          callback(statusReport, lastFolder, win);
+          return;
+        }
+
+        outline = aParentNode.firstElementChild;
+        if (outline.tagName != "outline")
+        {
+          FeedUtils.log.info("importOPMLOutlines: skipping, node is not an " +
+                             "<outline> - <" + outline.tagName + ">");
+          badTag = true;
+          break;
+        }
+
+        let outlineName = outline.getAttribute("text") ||
+                          outline.getAttribute("title") ||
+                          outline.getAttribute("xmlUrl");
+        let feedUrl, folderURI;
+
+        if (outline.getAttribute("type") == "rss")
+        {
+          // A feed outline.
+          feedUrl = outline.getAttribute("xmlUrl") || outline.getAttribute("url");
+          if (!feedUrl)
+          {
+            FeedUtils.log.info("importOPMLOutlines: skipping, type=rss <outline> " +
+                               "has no url - " + outlineName);
+            break;
+          }
+
+          rssOutlines++;
+          feedFolder = aParentFolder;
+
+          if (FeedUtils.feedAlreadyExists(feedUrl, rssServer))
+          {
+            FeedUtils.log.info("importOPMLOutlines: feed already subscribed in account " +
+                               rssServer.prettyName + ", url - " + feedUrl);
+            break;
+          }
+
+          if (aParentNode.tagName == "outline" &&
+              aParentNode.getAttribute("type") != "rss")
+            // Parent is a folder, already created.
+            folderURI = feedFolder.URI;
+          else
+          {
+            // Parent is not a folder outline, likely the <body> in a flat list.
+            // Create feed's folder with feed's name and account rootFolder as
+            // parent of feed's folder.
+            // NOTE: Assume a type=rss outline must be a leaf and is not a
+            // direct parent of another type=rss outline; such a structure
+            // may lead to unintended nesting and inaccurate counts.
+          }
+
+          // Create the feed.
+          let quickMode = outline.hasAttribute("fz:quickMode") ?
+                            outline.getAttribute("fz:quickMode") == "true" :
+                            rssServer.getBoolValue("quickMode");
+          let options = outline.getAttribute("fz:options");
+          options = options ? JSON.parse(options) : null;
+
+          if (firstFeedInFolderQuickMode === null)
+            // The summary/web page pref applies to all feeds in a folder,
+            // though it is a property of an individual feed.  This can be
+            // set (and is obvious) in the subscribe dialog; ensure import
+            // doesn't leave mismatches if mismatched in the opml file.
+            firstFeedInFolderQuickMode = quickMode;
+          else
+            quickMode = firstFeedInFolderQuickMode;
+
+          let feedProperties = { feedName     : outlineName,
+                                 feedLocation : feedUrl,
+                                 server       : rssServer,
+                                 folderURI    : folderURI,
+                                 quickMode    : quickMode,
+                                 options      : options };
+
+          FeedUtils.log.info("importOPMLOutlines: importing feed: name, url - "+
+                             outlineName + ", " + feedUrl);
+
+          let feed = win.storeFeed(feedProperties);
+          if (outline.hasAttribute("htmlUrl"))
+            feed.link = outline.getAttribute("htmlUrl");
+
+          feed.createFolder();
+          if (!feed.folder)
+          {
+            // Non success. Remove intermediate traces from the feeds database.
+            if (feed && feed.url && feed.server)
+              FeedUtils.deleteFeed(FeedUtils.rdf.GetResource(feed.url),
+                                   feed.server,
+                                   feed.server.rootFolder);
+            FeedUtils.log.info("importOPMLOutlines: skipping, error creating folder - '" +
+                               feed.folderName + "' from outlineName - '" +
+                               outlineName + "' in parent folder " +
+                               aParentFolder.filePath.path);
+            badTag = true;
+            break;
+          }
+
+          // Add the feed to the databases.
+          FeedUtils.addFeed(feed);
+          // Feed correctly added.
+          feedsAdded++;
+          lastFolder = feed.folder;
+        }
+        else
+        {
+          // A folder outline. If a folder exists in the account structure at
+          // the same level as in the opml structure, feeds are placed into the
+          // existing folder.
+          let defaultName = FeedUtils.strings.GetStringFromName("ImportFeedsNew");
+          let folderName = FeedUtils.getSanitizedFolderName(aParentFolder,
+                                                            outlineName,
+                                                            defaultName,
+                                                            false);
+          try {
+            feedFolder = aParentFolder.getChildNamed(folderName);
+          }
+          catch (ex) {
+            // Folder not found, create it.
+            FeedUtils.log.info("importOPMLOutlines: creating folder - '" +
+                                folderName + "' from outlineName - '" +
+                                outlineName + "' in parent folder " +
+                                aParentFolder.filePath.path);
+            firstFeedInFolderQuickMode = null;
+            try {
+              feedFolder = aParentFolder.QueryInterface(Ci.nsIMsgLocalMailFolder).
+                                         createLocalSubfolder(folderName);
+              folderOutlines++;
+            }
+            catch (ex) {
+              // An error creating. Skip it.
+              FeedUtils.log.info("importOPMLOutlines: skipping, error creating folder - '" +
+                                  folderName + "' from outlineName - '" +
+                                  outlineName + "' in parent folder " +
+                                  aParentFolder.filePath.path);
+              let xfolder = aParentFolder.getChildNamed(folderName);
+              aParentFolder.propagateDelete(xfolder, true, null);
+              badTag = true;
+              break;
+            }
+          }
+        }
+        break;
+      }
+
+      if (!outline.childElementCount || badTag)
+      {
+        // Remove leaf nodes that are processed or bad tags from the opml dom,
+        // and go back to reparse.  This method lets us use setTimeout to
+        // prevent UI hang, in situations of both deep and shallow trees.
+        // A yield/generator.next() method is fine for shallow trees, but not
+        // the true recursion required for deeper trees; both the shallow loop
+        // and the recurse should give it up.
+        outline.remove();
+        badTag = false;
+        outline = aBody;
+        feedFolder = rssServer.rootFolder;
+      }
+
+      setTimeout(function() {
+        processor(outline, feedFolder);
+      }, 0);
+    }
+
+    processor(aBody, rssServer.rootFolder);
+  },
+
+  importOPMLStatus: function(aFeedsAdded, aRssOutlines, aFolderOutlines)
+  {
+    let statusReport;
+    if (aRssOutlines > aFeedsAdded)
+      statusReport = FeedUtils.strings.formatStringFromName("subscribe-OPMLImportStatus",
+        [PluralForm.get(aFeedsAdded,
+                        FeedUtils.strings.GetStringFromName("subscribe-OPMLImportUniqueFeeds"))
+                   .replace("#1", aFeedsAdded),
+         PluralForm.get(aRssOutlines,
+                        FeedUtils.strings.GetStringFromName("subscribe-OPMLImportFoundFeeds"))
+                   .replace("#1", aRssOutlines)], 2);
+    else
+      statusReport = PluralForm.get(aFeedsAdded,
+        FeedUtils.strings.GetStringFromName("subscribe-OPMLImportFeedCount"))
+                         .replace("#1", aFeedsAdded);
+
+    return statusReport;
+  },
+
+  importOPMLFinished: function(aStatusReport, aLastFolder, aWin)
+  {
+    if (aLastFolder)
+    {
+      aWin.selectFolder(aLastFolder, { select: false, newFolder: aLastFolder });
+      aWin.selectFolder(aLastFolder.parent);
+    }
+    aWin.mActionMode = null;
+    aWin.updateButtons(aWin.mView.currentItem);
+    aWin.clearStatusInfo();
+    aWin.updateStatusItem("statusText", aStatusReport);
+  }
+
+};
diff --git a/mailnews/extensions/newsblog/content/feed-subscriptions.xul b/mailnews/extensions/newsblog/content/feed-subscriptions.xul
new file mode 100644
index 000000000..d6f4ea18f
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/feed-subscriptions.xul
@@ -0,0 +1,235 @@
+<?xml version="1.0"?>
+<!-- -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+   - This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger/skin/folderPane.css" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger/skin/folderMenus.css" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger-newsblog/skin/feed-subscriptions.css" type="text/css"?>
+
+<!DOCTYPE window [
+  <!ENTITY % feedDTD SYSTEM "chrome://messenger-newsblog/locale/feed-subscriptions.dtd">
+    %feedDTD;
+  <!ENTITY % certDTD SYSTEM "chrome://pippki/locale/certManager.dtd">
+    %certDTD;
+]>
+
+<window id="subscriptionsDialog"
+        flex="1"
+        title="&feedSubscriptions.label;"
+        windowtype="Mail:News-BlogSubscriptions"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+        xmlns:nc="http://home.netscape.com/NC-rdf#"
+        persist="width height screenX screenY sizemode"
+        onload="FeedSubscriptions.onLoad();"
+        onclose="return FeedSubscriptions.onClose();"
+        onkeypress="FeedSubscriptions.onKeyPress(event);"
+        onmousedown="FeedSubscriptions.onMouseDown(event);">
+
+  <script type="application/javascript"
+          src="chrome://messenger/content/specialTabs.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger-newsblog/content/feed-subscriptions.js"/>
+
+  <keyset id="extensionsKeys">
+    <key id="key_close"
+         key="&cmd.close.commandKey;"
+         modifiers="accel"
+         oncommand="window.close();"/>
+    <key id="key_close2"
+         keycode="VK_ESCAPE"
+         oncommand="window.close();"/>
+  </keyset>
+
+  <stringbundle id="bundle_newsblog"
+                src="chrome://messenger-newsblog/locale/newsblog.properties"/>
+  <stringbundle id="bundle_brand"
+                src="chrome://branding/locale/brand.properties"/>
+
+  <vbox flex="1" id="contentPane">
+    <hbox align="right">
+      <label id="learnMore"
+             class="text-link"
+             crop="end"
+             value="&learnMore.label;"
+             href="https://support.mozilla.org/kb/how-subscribe-news-feeds-and-blogs"/>
+    </hbox>
+
+    <tree id="rssSubscriptionsList"
+          treelines="true"
+          flex="1"
+          hidecolumnpicker="true"
+          onselect="FeedSubscriptions.onSelect();"
+          seltype="single">
+      <treecols>
+        <treecol id="folderNameCol"
+                 flex="2"
+                 primary="true"
+                 hideheader="true"/>
+      </treecols>
+      <treechildren id="subscriptionChildren"
+                    ondragstart="FeedSubscriptions.onDragStart(event);"
+                    ondragover="FeedSubscriptions.onDragOver(event);"/>
+    </tree>
+
+    <hbox id="rssFeedInfoBox">
+      <vbox flex="1">
+        <grid flex="1">
+          <columns>
+            <column/>
+            <column flex="1"/>
+          </columns>
+          <rows>
+            <row>
+              <hbox align="right" valign="middle">
+                <label id="nameLabel"
+                       accesskey="&feedTitle.accesskey;"
+                       control="nameValue"
+                       value="&feedTitle.label;"/>
+              </hbox>
+              <textbox id="nameValue"
+                       clickSelectsAll="true"/>
+            </row>
+            <row>
+              <hbox align="right" valign="middle">
+                <label id="locationLabel"
+                       accesskey="&feedLocation.accesskey;"
+                       control="locationValue"
+                       value="&feedLocation.label;"/>
+              </hbox>
+              <hbox>
+                <textbox id="locationValue"
+                         flex="1"
+                         class="uri-element"
+                         placeholder="&feedLocation.placeholder;"
+                         clickSelectsAll="true"
+                         onfocus="FeedSubscriptions.setSummaryFocus();"
+                         onblur="FeedSubscriptions.setSummaryFocus();"/>
+                <hbox align="center">
+                  <label id="locationValidate"
+                         collapsed="true"
+                         class="text-link"
+                         crop="end"
+                         value="&locationValidate.label;"
+                         onclick="FeedSubscriptions.checkValidation(event);"/>
+                </hbox>
+              </hbox>
+            </row>
+            <row>
+              <hbox align="right" valign="middle">
+                <label id="feedFolderLabel"
+                       value="&feedFolder.label;"
+                       accesskey="&feedFolder.accesskey;"
+                       control="selectFolder"/>
+              </hbox>
+              <hbox>
+                <menulist id="selectFolder"
+                          flex="1"
+                          class="folderMenuItem"
+                          hidden="true">
+                  <menupopup id="selectFolderPopup"
+                             class="menulist-menupopup"
+                             type="folder"
+                             mode="feeds"
+                             showFileHereLabel="true"
+                             showAccountsFileHere="true"
+                             oncommand="FeedSubscriptions.setNewFolder(event)"/>
+                </menulist>
+                <textbox id="selectFolderValue"
+                         flex="1"
+                         readonly="true"
+                         onkeypress="FeedSubscriptions.onClickSelectFolderValue(event)"
+                         onclick="FeedSubscriptions.onClickSelectFolderValue(event)"/>
+              </hbox>
+            </row>
+          </rows>
+        </grid>
+        <checkbox id="quickMode"
+                  accesskey="&quickMode.accesskey;"
+                  label="&quickMode.label;"
+                  oncommand="FeedSubscriptions.setSummary(this.checked)"/>
+        <checkbox id="autotagEnable"
+                  accesskey="&autotagEnable.accesskey;"
+                  label="&autotagEnable.label;"
+                  oncommand="FeedSubscriptions.setCategoryPrefs(this)"/>
+        <hbox>
+            <checkbox id="autotagUsePrefix"
+                      class="indent"
+                      accesskey="&autotagUsePrefix.accesskey;"
+                      label="&autotagUsePrefix.label;"
+                      oncommand="FeedSubscriptions.setCategoryPrefs(this)"/>
+            <textbox id="autotagPrefix"
+                     placeholder="&autoTagPrefix.placeholder;"
+                     clickSelectsAll="true"/>
+        </hbox>
+        <separator class="thin"/>
+      </vbox>
+    </hbox>
+
+    <hbox id="statusContainerBox"
+          align="center"
+          valign="middle">
+      <vbox flex="1">
+        <description id="statusText"/>
+      </vbox>
+      <spacer flex="1"/>
+      <label id="validationText"
+             collapsed="true"
+             class="text-link"
+             crop="end"
+             value="&validateText.label;"
+             onclick="FeedSubscriptions.checkValidation(event);"/>
+      <button id="addCertException"
+              collapsed="true"
+              label="&certmgr.addException.label;"
+              accesskey="&certmgr.addException.accesskey;"
+              oncommand="FeedSubscriptions.addCertExceptionDialog();"/>
+      <progressmeter id="progressMeter"
+                     collapsed="true"
+                     mode="determined"
+                     value="0"/>
+    </hbox>
+
+    <hbox align="end">
+      <hbox class="actionButtons" flex="1">
+        <button id="addFeed"
+                label="&button.addFeed.label;"
+                accesskey="&button.addFeed.accesskey;"
+                oncommand="FeedSubscriptions.addFeed();"/>
+
+        <button id="editFeed"
+                disabled="true"
+                label="&button.updateFeed.label;"
+                accesskey="&button.updateFeed.accesskey;"
+                oncommand="FeedSubscriptions.editFeed();"/>
+
+        <button id="removeFeed"
+                disabled="true"
+                label="&button.removeFeed.label;"
+                accesskey="&button.removeFeed.accesskey;"
+                oncommand="FeedSubscriptions.removeFeed(true);"/>
+
+        <button id="importOPML"
+                label="&button.importOPML.label;"
+                accesskey="&button.importOPML.accesskey;"
+                oncommand="FeedSubscriptions.importOPML();"/>
+
+        <button id="exportOPML"
+                label="&button.exportOPML.label;"
+                accesskey="&button.exportOPML.accesskey;"
+                tooltiptext="&button.exportOPML.tooltip;"
+                oncommand="FeedSubscriptions.exportOPML(event);"/>
+
+        <spacer flex="1"/>
+
+        <button id="close"
+                label="&button.close.label;"
+                icon="close"
+                oncommand="if (FeedSubscriptions.onClose()) window.close();"/>
+      </hbox>
+    </hbox>
+  </vbox>
+</window>
diff --git a/mailnews/extensions/newsblog/content/feedAccountWizard.js b/mailnews/extensions/newsblog/content/feedAccountWizard.js
new file mode 100644
index 000000000..a79da073a
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/feedAccountWizard.js
@@ -0,0 +1,45 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

+/* This Source Code Form is subject to the terms of the Mozilla Public

+ * License, v. 2.0. If a copy of the MPL was not distributed with this

+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

+

+Components.utils.import("resource:///modules/FeedUtils.jsm");

+

+/* Feed account standalone wizard functions */

+var FeedAccountWizard = {

+  accountName: "",

+

+  accountSetupPageInit: function() {

+    this.accountSetupPageValidate();

+  },

+

+  accountSetupPageValidate: function() {

+    this.accountName = document.getElementById("prettyName").value.trim();

+    document.documentElement.canAdvance = this.accountName;

+  },

+

+  accountSetupPageUnload: function() {

+    return;

+  },

+

+  donePageInit: function() {

+    document.getElementById("account.name.text").value = this.accountName;

+  },

+

+  onCancel: function() {

+    return true;

+  },

+

+  onFinish: function() {

+    let account = FeedUtils.createRssAccount(this.accountName);

+    if ("gFolderTreeView" in window.opener.top)

+      // Opened from 3pane File->New or Appmenu New Message, or

+      // Account Central link.

+      window.opener.top.gFolderTreeView.selectFolder(account.incomingServer.rootMsgFolder);

+    else if ("selectServer" in window.opener)

+      // Opened from Account Settings.

+      window.opener.selectServer(account.incomingServer);

+

+    window.close();

+  }

+}

diff --git a/mailnews/extensions/newsblog/content/feedAccountWizard.xul b/mailnews/extensions/newsblog/content/feedAccountWizard.xul
new file mode 100644
index 000000000..0535fb237
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/feedAccountWizard.xul
@@ -0,0 +1,79 @@
+<?xml version="1.0"?>

+<!-- This Source Code Form is subject to the terms of the Mozilla Public

+   - License, v. 2.0. If a copy of the MPL was not distributed with this

+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

+

+<?xml-stylesheet href="chrome://messenger/skin/accountWizard.css" type="text/css"?>

+

+<!DOCTYPE wizard [

+  <!ENTITY %  accountDTD SYSTEM "chrome://messenger/locale/AccountWizard.dtd">

+  %accountDTD;

+  <!ENTITY % newsblogDTD SYSTEM "chrome://messenger-newsblog/locale/am-newsblog.dtd" >

+  %newsblogDTD;

+  <!ENTITY %       imDTD SYSTEM "chrome://messenger/locale/imAccountWizard.dtd" >

+  %imDTD;

+]>

+

+<wizard id="FeedAccountWizard"

+        title="&feedWindowTitle.label;"

+        onwizardcancel="return FeedAccountWizard.onCancel();"

+        onwizardfinish="return FeedAccountWizard.onFinish();"

+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

+

+  <script type="application/javascript"

+          src="chrome://messenger-newsblog/content/feedAccountWizard.js"/>

+

+  <!-- Account setup page : User gets a choice to enter a name for the account -->

+  <!-- Defaults : Feed account name -> default string -->

+  <wizardpage id="accountsetuppage"

+              pageid="accountsetuppage"

+              label="&accnameTitle.label;"

+              onpageshow="return FeedAccountWizard.accountSetupPageInit();"

+              onpageadvanced="return FeedAccountWizard.accountSetupPageUnload();">

+    <vbox flex="1">

+      <description>&accnameDesc.label;</description>

+      <separator class="thin"/>

+      <hbox align="center">

+        <label class="label"

+               value="&accnameLabel.label;"

+               accesskey="&accnameLabel.accesskey;"

+               control="prettyName"/>

+        <textbox id="prettyName"

+                 flex="1"

+                 value="&feeds.accountName;"

+                 oninput="FeedAccountWizard.accountSetupPageValidate();"/>

+      </hbox>

+    </vbox>

+  </wizardpage>

+

+  <!-- Done page : Summarizes information collected to create a feed account -->

+  <wizardpage id="done"

+              pageid="done"

+              label="&accountSummaryTitle.label;"

+              onpageshow="return FeedAccountWizard.donePageInit();">

+    <vbox flex="1">

+      <description>&accountSummaryInfo.label;</description>

+      <separator class="thin"/>

+      <grid>

+        <columns>

+          <column/>

+          <column flex="1"/>

+        </columns>

+        <rows>

+          <row id="account.name"

+               align="center">

+            <label id="account.name.label"

+                   class="label"

+                   flex="1"

+                   value="&accnameLabel.label;"/>

+            <label id="account.name.text"

+                   class="label"/>

+          </row>

+        </rows>

+      </grid>

+      <separator/>

+      <spacer flex="1"/>

+    </vbox>

+  </wizardpage>

+

+</wizard>

diff --git a/mailnews/extensions/newsblog/content/newsblogOverlay.js b/mailnews/extensions/newsblog/content/newsblogOverlay.js
new file mode 100644
index 000000000..f7e08ec95
--- /dev/null
+++ b/mailnews/extensions/newsblog/content/newsblogOverlay.js
@@ -0,0 +1,363 @@
+/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource:///modules/gloda/mimemsg.js");
+Components.utils.import("resource:///modules/mailServices.js");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// This global is for SeaMonkey compatibility.
+var gShowFeedSummary;
+
+var FeedMessageHandler = {
+  gShowSummary: true,
+  gToggle: false,
+  kSelectOverrideWebPage:   0,
+  kSelectOverrideSummary:   1,
+  kSelectFeedDefault:       2,
+  kOpenWebPage:             0,
+  kOpenSummary:             1,
+  kOpenToggleInMessagePane: 2,
+  kOpenLoadInBrowser:       3,
+
+  /**
+   * How to load message on threadpane select.
+   */
+  get onSelectPref() {
+    return Services.prefs.getIntPref("rss.show.summary");
+  },
+
+  set onSelectPref(val) {
+    Services.prefs.setIntPref("rss.show.summary", val);
+    ReloadMessage();
+  },
+
+  /**
+   * Load web page on threadpane select.
+   */
+  get loadWebPageOnSelectPref() {
+    return Services.prefs.getIntPref("rss.message.loadWebPageOnSelect") ? true : false;
+  },
+
+  /**
+   * How to load message on open (enter/dbl click in threadpane, contextmenu).
+   */
+  get onOpenPref() {
+    return Services.prefs.getIntPref("rss.show.content-base");
+  },
+
+  set onOpenPref(val) {
+    Services.prefs.setIntPref("rss.show.content-base", val);
+  },
+
+  /**
+   * Determine if a message is a feed message. Prior to Tb15, a message had to
+   * be in an rss acount type folder. In Tb15 and later, a flag is set on the
+   * message itself upon initial store; the message can be moved to any folder.
+   *
+   * @param nsIMsgDBHdr aMsgHdr - the message.
+   *
+   * @return true if message is a feed, false if not.
+   */
+  isFeedMessage: function(aMsgHdr) {
+    return (aMsgHdr instanceof Components.interfaces.nsIMsgDBHdr) &&
+           ((aMsgHdr.flags & Components.interfaces.nsMsgMessageFlags.FeedMsg) ||
+            (aMsgHdr.folder && aMsgHdr.folder.server.type == "rss"));
+  },
+
+  /**
+   * Determine whether to show a feed message summary or load a web page in the
+   * message pane.
+   *
+   * @param nsIMsgDBHdr aMsgHdr - the message.
+   * @param bool aToggle        - true if in toggle mode, false otherwise.
+   *
+   * @return true if summary is to be displayed, false if web page.
+   */
+  shouldShowSummary: function(aMsgHdr, aToggle) {
+    // Not a feed message, always show summary (the message).
+    if (!this.isFeedMessage(aMsgHdr))
+      return true;
+
+    // Notified of a summary reload when toggling, reset toggle and return.
+    if (!aToggle && this.gToggle)
+      return !(this.gToggle = false);
+
+    let showSummary = true;
+    this.gToggle = aToggle;
+
+    // Thunderbird 2 rss messages with 'Show article summary' not selected,
+    // ie message body constructed to show web page in an iframe, can't show
+    // a summary - notify user.
+    let browser = getBrowser();
+    let contentDoc = browser ? browser.contentDocument : null;
+    let rssIframe = contentDoc ? contentDoc.getElementById("_mailrssiframe") : null;
+    if (rssIframe) {
+      if (this.gToggle || this.onSelectPref == this.kSelectOverrideSummary)
+        this.gToggle = false;
+      return false;
+    }
+
+    if (aToggle)
+      // Toggle mode, flip value.
+      return gShowFeedSummary = this.gShowSummary = !this.gShowSummary;
+
+    let wintype = document.documentElement.getAttribute("windowtype");
+    let tabMail = document.getElementById("tabmail");
+    let messageTab = tabMail && tabMail.currentTabInfo.mode.type == "message";
+    let messageWindow = wintype == "mail:messageWindow";
+
+    switch (this.onSelectPref) {
+      case this.kSelectOverrideWebPage:
+        showSummary = false;
+        break;
+      case this.kSelectOverrideSummary:
+        showSummary = true
+        break;
+      case this.kSelectFeedDefault:
+        // Get quickmode per feed folder pref from feeds.rdf. If the feed
+        // message is not in a feed account folder (hence the folder is not in
+        // the feeds database), or FZ_QUICKMODE property is not found (possible
+        // in pre renovation urls), err on the side of showing the summary.
+        // For the former, toggle or global override is necessary; for the
+        // latter, a show summary checkbox toggle in Subscribe dialog will set
+        // one on the path to bliss.
+        let folder = aMsgHdr.folder, targetRes;
+        try {
+          targetRes = FeedUtils.getParentTargetForChildResource(
+                        folder.URI, FeedUtils.FZ_QUICKMODE, folder.server);
+        }
+        catch (ex) {
+          // Not in a feed account folder or other error.
+          FeedUtils.log.info("FeedMessageHandler.shouldShowSummary: could not " +
+                             "get summary pref for this folder");
+        }
+
+        showSummary = targetRes && targetRes.QueryInterface(Ci.nsIRDFLiteral).
+                                             Value == "false" ? false : true;
+        break;
+    }
+
+    gShowFeedSummary = this.gShowSummary = showSummary;
+
+    if (messageWindow || messageTab) {
+      // Message opened in either standalone window or tab, due to either
+      // message open pref (we are here only if the pref is 0 or 1) or
+      // contextmenu open.
+      switch (this.onOpenPref) {
+        case this.kOpenToggleInMessagePane:
+          // Opened by contextmenu, use the value derived above.
+          // XXX: allow a toggle via crtl?
+          break;
+        case this.kOpenWebPage:
+          showSummary = false;
+          break;
+        case this.kOpenSummary:
+          showSummary = true;
+          break;
+      }
+    }
+
+    // Auto load web page in browser on select, per pref; shouldShowSummary() is
+    // always called first to 1)test if feed, 2)get summary pref, so do it here.
+    if (this.loadWebPageOnSelectPref)
+      setTimeout(FeedMessageHandler.loadWebPage, 20, aMsgHdr, {browser:true});
+
+    return showSummary;
+  },
+
+  /**
+   * Load a web page for feed messages. Use MsgHdrToMimeMessage() to get
+   * the content-base url from the message headers. We cannot rely on
+   * currentHeaderData; it has not yet been streamed at our entry point in
+   * displayMessageChanged(), and in the case of a collapsed message pane it
+   * is not streamed.
+   *
+   * @param nsIMsgDBHdr aMessageHdr - the message.
+   * @param {obj} aWhere            - name value=true pair, where name is in:
+   *                                  'messagepane', 'browser', 'tab', 'window'.
+   */
+  loadWebPage: function(aMessageHdr, aWhere) {
+    MsgHdrToMimeMessage(aMessageHdr, null, function(aMsgHdr, aMimeMsg) {
+      if (aMimeMsg && aMimeMsg.headers["content-base"] &&
+          aMimeMsg.headers["content-base"][0]) {
+        let url = aMimeMsg.headers["content-base"], uri;
+        try {
+          let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
+                            .createInstance(Ci.nsIScriptableUnicodeConverter);
+          converter.charset = "UTF-8";
+          url = converter.ConvertToUnicode(url);
+          uri = Services.io.newURI(url, null, null);
+          url = uri.spec;
+        }
+        catch (ex) {
+          FeedUtils.log.info("FeedMessageHandler.loadWebPage: " +
+                             "invalid Content-Base header url - " + url);
+          return;
+        }
+        if (aWhere.browser)
+          Components.classes["@mozilla.org/uriloader/external-protocol-service;1"]
+                    .getService(Components.interfaces.nsIExternalProtocolService)
+                    .loadURI(uri);
+        else if (aWhere.messagepane) {
+          let loadFlag = getBrowser().webNavigation.LOAD_FLAGS_NONE;
+          getBrowser().webNavigation.loadURI(url, loadFlag, null, null, null);
+        }
+        else if (aWhere.tab)
+          openContentTab(url, "tab", "^");
+        else if (aWhere.window)
+          openContentTab(url, "window", "^");
+      }
+      else
+        FeedUtils.log.info("FeedMessageHandler.loadWebPage: could not get " +
+                           "Content-Base header url for this message");
+    });
+  },
+
+  /**
+   * Display summary or load web page for feed messages. Caller should already
+   * know if the message is a feed message.
+   *
+   * @param nsIMsgDBHdr aMsgHdr - the message.
+   * @param bool aShowSummary   - true if summary is to be displayed, false if
+   *                              web page.
+   */
+  setContent: function(aMsgHdr, aShowSummary) {
+    if (aShowSummary) {
+      // Only here if toggling to summary in 3pane.
+      if (this.gToggle && gDBView && GetNumSelectedMessages() == 1)
+        ReloadMessage();
+    }
+    else {
+      let browser = getBrowser();
+      if (browser && browser.contentDocument && browser.contentDocument.body)
+        browser.contentDocument.body.hidden = true;
+      // If in a non rss folder, hide possible remote content bar on a web
+      // page load, as it doesn't apply.
+      if ("msgNotificationBar" in window)
+        gMessageNotificationBar.clearMsgNotifications();
+
+      this.loadWebPage(aMsgHdr, {messagepane:true});
+      this.gToggle = false;
+    }
+  }
+}
+
+function openSubscriptionsDialog(aFolder)
+{
+  // Check for an existing feed subscriptions window and focus it.
+  let subscriptionsWindow =
+    Services.wm.getMostRecentWindow("Mail:News-BlogSubscriptions");
+
+  if (subscriptionsWindow)
+  {
+    if (aFolder)
+    {
+      subscriptionsWindow.FeedSubscriptions.selectFolder(aFolder);
+      subscriptionsWindow.FeedSubscriptions.mView.treeBox.ensureRowIsVisible(
+        subscriptionsWindow.FeedSubscriptions.mView.selection.currentIndex);
+    }
+
+    subscriptionsWindow.focus();
+  }
+  else
+  {
+    window.openDialog("chrome://messenger-newsblog/content/feed-subscriptions.xul",
+                      "", "centerscreen,chrome,dialog=no,resizable",
+                      { folder: aFolder});
+  }
+}
+
+// Special case attempts to reply/forward/edit as new RSS articles. For
+// messages stored prior to Tb15, we are here only if the message's folder's
+// account server is rss and feed messages moved to other types will have their
+// summaries loaded, as viewing web pages only happened in an rss account.
+// The user may choose whether to load a summary or web page link by ensuring
+// the current feed message is being viewed as either a summary or web page.
+function openComposeWindowForRSSArticle(aMsgComposeWindow, aMsgHdr, aMessageUri,
+                                        aType, aFormat, aIdentity, aMsgWindow)
+{
+  // Ensure right content is handled for web pages in window/tab.
+  let tabmail = document.getElementById("tabmail");
+  let is3pane = tabmail && tabmail.selectedTab && tabmail.selectedTab.mode ?
+                  tabmail.selectedTab.mode.type == "folder" : false;
+  let showingwebpage = ("FeedMessageHandler" in window) && !is3pane &&
+                       FeedMessageHandler.onOpenPref == FeedMessageHandler.kOpenWebPage;
+
+  if (gShowFeedSummary && !showingwebpage)
+  {
+    // The user is viewing the summary.
+    MailServices.compose.OpenComposeWindow(aMsgComposeWindow, aMsgHdr, aMessageUri,
+                                           aType, aFormat, aIdentity, aMsgWindow);
+
+  }
+  else
+  {
+    // Set up the compose message and get the feed message's web page link.
+    let Cc = Components.classes;
+    let Ci = Components.interfaces;
+    let msgHdr = aMsgHdr;
+    let type = aType;
+    let msgComposeType = Ci.nsIMsgCompType;
+    let subject = msgHdr.mime2DecodedSubject;
+    let fwdPrefix = Services.prefs.getCharPref("mail.forward_subject_prefix");
+    fwdPrefix = fwdPrefix ? fwdPrefix + ": " : "";
+
+    let params = Cc["@mozilla.org/messengercompose/composeparams;1"]
+                   .createInstance(Ci.nsIMsgComposeParams);
+
+    let composeFields = Cc["@mozilla.org/messengercompose/composefields;1"]
+                          .createInstance(Ci.nsIMsgCompFields);
+
+    if (type == msgComposeType.Reply ||
+        type == msgComposeType.ReplyAll ||
+        type == msgComposeType.ReplyToSender ||
+        type == msgComposeType.ReplyToGroup ||
+        type == msgComposeType.ReplyToSenderAndGroup)
+    {
+      subject = "Re: " + subject;
+    }
+    else if (type == msgComposeType.ForwardInline ||
+             type == msgComposeType.ForwardAsAttachment)
+    {
+      subject = fwdPrefix + subject;
+    }
+
+    params.composeFields = composeFields;
+    params.composeFields.subject = subject;
+    params.composeFields.characterSet = msgHdr.Charset;
+    params.composeFields.body = "";
+    params.bodyIsLink = false;
+    params.identity = aIdentity;
+
+    try
+    {
+      // The feed's web page url is stored in the Content-Base header.
+      MsgHdrToMimeMessage(msgHdr, null, function(aMsgHdr, aMimeMsg) {
+        if (aMimeMsg && aMimeMsg.headers["content-base"] &&
+            aMimeMsg.headers["content-base"][0])
+        {
+          let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
+                            .createInstance(Ci.nsIScriptableUnicodeConverter);
+          converter.charset = "UTF-8";
+          let url = converter.ConvertToUnicode(aMimeMsg.headers["content-base"]);
+          params.composeFields.body = url;
+          params.bodyIsLink = true;
+          MailServices.compose.OpenComposeWindowWithParams(null, params);
+        }
+        else
+          // No content-base url, use the summary.
+          MailServices.compose.OpenComposeWindow(aMsgComposeWindow, aMsgHdr, aMessageUri,
+                                                 aType, aFormat, aIdentity, aMsgWindow);
+
+      }, false, {saneBodySize: true});
+    }
+    catch (ex)
+    {
+      // Error getting header, use the summary.
+      MailServices.compose.OpenComposeWindow(aMsgComposeWindow, aMsgHdr, aMessageUri,
+                                             aType, aFormat, aIdentity, aMsgWindow);
+    }
+  }
+}
diff --git a/mailnews/extensions/newsblog/jar.mn b/mailnews/extensions/newsblog/jar.mn
new file mode 100644
index 000000000..aa16a0100
--- /dev/null
+++ b/mailnews/extensions/newsblog/jar.mn
@@ -0,0 +1,16 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+newsblog.jar:
+% content messenger-newsblog %content/messenger-newsblog/
+   content/messenger-newsblog/newsblogOverlay.js                (content/newsblogOverlay.js)
+   content/messenger-newsblog/Feed.js                           (content/Feed.js)
+   content/messenger-newsblog/FeedItem.js                       (content/FeedItem.js)
+   content/messenger-newsblog/feed-parser.js                    (content/feed-parser.js)
+*  content/messenger-newsblog/feed-subscriptions.js             (content/feed-subscriptions.js)
+   content/messenger-newsblog/feed-subscriptions.xul            (content/feed-subscriptions.xul)
+   content/messenger-newsblog/am-newsblog.js                    (content/am-newsblog.js)
+   content/messenger-newsblog/am-newsblog.xul                   (content/am-newsblog.xul)
+   content/messenger-newsblog/feedAccountWizard.js              (content/feedAccountWizard.js)
+   content/messenger-newsblog/feedAccountWizard.xul             (content/feedAccountWizard.xul)
diff --git a/mailnews/extensions/newsblog/js/newsblog.js b/mailnews/extensions/newsblog/js/newsblog.js
new file mode 100644
index 000000000..364038ee5
--- /dev/null
+++ b/mailnews/extensions/newsblog/js/newsblog.js
@@ -0,0 +1,99 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+Cu.import("resource:///modules/FeedUtils.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+var nsNewsBlogFeedDownloader =
+{
+  downloadFeed: function(aFolder, aUrlListener, aIsBiff, aMsgWindow)
+  {
+    FeedUtils.downloadFeed(aFolder, aUrlListener, aIsBiff, aMsgWindow);
+  },
+
+  subscribeToFeed: function(aUrl, aFolder, aMsgWindow)
+  {
+    FeedUtils.subscribeToFeed(aUrl, aFolder, aMsgWindow);
+  },
+
+  updateSubscriptionsDS: function(aFolder, aOrigFolder, aAction)
+  {
+    FeedUtils.updateSubscriptionsDS(aFolder, aOrigFolder, aAction);
+  },
+
+  QueryInterface: function(aIID)
+  {
+    if (aIID.equals(Ci.nsINewsBlogFeedDownloader) ||
+        aIID.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+var nsNewsBlogAcctMgrExtension =
+{
+  name: "newsblog",
+  chromePackageName: "messenger-newsblog",
+  showPanel: function (server)
+  {
+    return false;
+  },
+  QueryInterface: function(aIID)
+  {
+    if (aIID.equals(Ci.nsIMsgAccountManagerExtension) ||
+        aIID.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+function FeedDownloader() {}
+
+FeedDownloader.prototype =
+{
+  classID: Components.ID("{5c124537-adca-4456-b2b5-641ab687d1f6}"),
+  _xpcom_factory:
+  {
+    createInstance: function (aOuter, aIID)
+    {
+      if (aOuter != null)
+        throw Cr.NS_ERROR_NO_AGGREGATION;
+      if (!aIID.equals(Ci.nsINewsBlogFeedDownloader) &&
+          !aIID.equals(Ci.nsISupports))
+        throw Cr.NS_ERROR_INVALID_ARG;
+
+      // return the singleton
+      return nsNewsBlogFeedDownloader.QueryInterface(aIID);
+    }
+  } // factory
+}; // feed downloader
+
+function AcctMgrExtension() {}
+
+AcctMgrExtension.prototype =
+{
+  classID: Components.ID("{E109C05F-D304-4ca5-8C44-6DE1BFAF1F74}"),
+  _xpcom_factory:
+  {
+    createInstance: function (aOuter, aIID)
+    {
+      if (aOuter != null)
+        throw Cr.NS_ERROR_NO_AGGREGATION;
+      if (!aIID.equals(Ci.nsIMsgAccountManagerExtension) &&
+          !aIID.equals(Ci.nsISupports))
+        throw Cr.NS_ERROR_INVALID_ARG;
+
+      // return the singleton
+      return nsNewsBlogAcctMgrExtension.QueryInterface(aIID);
+    }
+  } // factory
+}; // account manager extension
+
+var components = [FeedDownloader, AcctMgrExtension];
+var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/mailnews/extensions/newsblog/js/newsblog.manifest b/mailnews/extensions/newsblog/js/newsblog.manifest
new file mode 100644
index 000000000..5a24df5e7
--- /dev/null
+++ b/mailnews/extensions/newsblog/js/newsblog.manifest
@@ -0,0 +1,5 @@
+component {5c124537-adca-4456-b2b5-641ab687d1f6} newsblog.js
+contract @mozilla.org/newsblog-feed-downloader;1 {5c124537-adca-4456-b2b5-641ab687d1f6}
+component {E109C05F-D304-4ca5-8C44-6DE1BFAF1F74} newsblog.js
+contract @mozilla.org/accountmanager/extension;1?name=newsblog {E109C05F-D304-4ca5-8C44-6DE1BFAF1F74}
+category mailnews-accountmanager-extensions newsblog @mozilla.org/accountmanager/extension;1?name=newsblog
diff --git a/mailnews/extensions/newsblog/moz.build b/mailnews/extensions/newsblog/moz.build
new file mode 100644
index 000000000..367f60574
--- /dev/null
+++ b/mailnews/extensions/newsblog/moz.build
@@ -0,0 +1,18 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+EXTRA_COMPONENTS += [
+    'js/newsblog.js',
+    'js/newsblog.manifest',
+]
+
+EXTRA_JS_MODULES += [
+    'content/FeedUtils.jsm',
+]
+JAR_MANIFESTS += ['jar.mn']
+
+FINAL_TARGET_FILES.isp += [
+    'rss.rdf',
+]
diff --git a/mailnews/extensions/newsblog/rss.rdf b/mailnews/extensions/newsblog/rss.rdf
new file mode 100644
index 000000000..c7223c01b
--- /dev/null
+++ b/mailnews/extensions/newsblog/rss.rdf
@@ -0,0 +1,43 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE RDF SYSTEM "chrome://messenger-newsblog/locale/am-newsblog.dtd">  
+<RDF:RDF
+    xmlns:NC="http://home.netscape.com/NC-rdf#"
+    xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+  <RDF:Description about="NC:ispinfo">
+    <NC:providers>
+      <NC:nsIMsgAccount about="newsblog">
+
+        <!-- server info -->
+        <NC:incomingServer>
+          <NC:nsIMsgIncomingServer>
+            <NC:hostName>Feeds</NC:hostName>
+            <NC:type>rss</NC:type>
+            <NC:biffMinutes>100</NC:biffMinutes>
+            <NC:username>nobody</NC:username>
+          </NC:nsIMsgIncomingServer>
+        </NC:incomingServer>
+
+        <!-- identity defaults -->
+        <NC:identity>
+          <NC:nsIMsgIdentity>
+          </NC:nsIMsgIdentity>
+        </NC:identity>
+
+        <NC:wizardAutoGenerateUniqueHostname>true</NC:wizardAutoGenerateUniqueHostname>
+        <NC:wizardHideIncoming>true</NC:wizardHideIncoming>
+        <NC:wizardAccountName>&feeds.accountName;</NC:wizardAccountName>
+        <NC:wizardSkipPanels>identitypage,incomingpage,outgoingpage</NC:wizardSkipPanels>
+        <NC:wizardShortName>&feeds.wizardShortName;</NC:wizardShortName>
+        <NC:wizardLongName>&feeds.wizardLongName;</NC:wizardLongName>
+        <NC:wizardLongNameAccesskey>&feeds.wizardLongName.accesskey;</NC:wizardLongNameAccesskey>
+        <NC:wizardShow>true</NC:wizardShow>
+        <NC:emailProviderName>RSS</NC:emailProviderName>
+        <NC:showServerDetailsOnWizardSummary>false</NC:showServerDetailsOnWizardSummary> 
+      </NC:nsIMsgAccount>
+    </NC:providers>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/mailnews/extensions/offline-startup/js/offlineStartup.js b/mailnews/extensions/offline-startup/js/offlineStartup.js
new file mode 100644
index 000000000..56584465d
--- /dev/null
+++ b/mailnews/extensions/offline-startup/js/offlineStartup.js
@@ -0,0 +1,170 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+var kDebug              = false;
+var kOfflineStartupPref = "offline.startup_state";
+var kRememberLastState  = 0;
+var kAskForOnlineState  = 1;
+var kAlwaysOnline       = 2;
+var kAlwaysOffline      = 3;
+var kAutomatic          = 4;
+var   gStartingUp         = true;
+var   gOfflineStartupMode; //0 = remember last state, 1 = ask me, 2 == online, 3 == offline, 4 = automatic
+
+
+////////////////////////////////////////////////////////////////////////
+//
+//   nsOfflineStartup : nsIObserver
+//
+//   Check if the user has set the pref to be prompted for
+//   online/offline startup mode. If so, prompt the user. Also,
+//   check if the user wants to remember their offline state
+//   the next time they start up.
+//   If the user shutdown offline, and is now starting up in online
+//   mode, we will set the boolean pref "mailnews.playback_offline" to true.
+//
+////////////////////////////////////////////////////////////////////////
+
+var nsOfflineStartup =
+{
+  onProfileStartup: function()
+  {
+    debug("onProfileStartup");
+
+    if (gStartingUp)
+    {
+      gStartingUp = false;
+      // if checked, the "work offline" checkbox overrides
+      if (Services.io.offline && !Services.io.manageOfflineStatus)
+      {
+        debug("already offline!");
+        return;
+      }
+    }
+
+    var manageOfflineStatus = Services.prefs.getBoolPref("offline.autoDetect");
+    gOfflineStartupMode = Services.prefs.getIntPref(kOfflineStartupPref);
+    let wasOffline = !Services.prefs.getBoolPref("network.online");
+
+    if (gOfflineStartupMode == kAutomatic)
+    {
+      // Offline state should be managed automatically
+      // so do nothing specific at startup.
+    }
+    else if (gOfflineStartupMode == kAlwaysOffline)
+    {
+      Services.io.manageOfflineStatus = false;
+      Services.io.offline = true;
+    }
+    else if (gOfflineStartupMode == kAlwaysOnline)
+    {
+      Services.io.manageOfflineStatus = manageOfflineStatus;
+      if (wasOffline)
+        Services.prefs.setBoolPref("mailnews.playback_offline", true);
+      // If we're managing the offline status, don't force online here... it may
+      // be the network really is offline.
+      if (!manageOfflineStatus)
+        Services.io.offline = false;
+    }
+    else if (gOfflineStartupMode == kRememberLastState)
+    {
+      Services.io.manageOfflineStatus = manageOfflineStatus && !wasOffline;
+      // If we are meant to be online, and managing the offline status
+      // then don't force it - it may be the network really is offline.
+      if (!manageOfflineStatus || wasOffline)
+        Services.io.offline = wasOffline;
+    }
+    else if (gOfflineStartupMode == kAskForOnlineState)
+    {
+      var bundle = Services.strings.createBundle("chrome://messenger/locale/offlineStartup.properties");
+      var title = bundle.GetStringFromName("title");
+      var desc = bundle.GetStringFromName("desc");
+      var button0Text = bundle.GetStringFromName("workOnline");
+      var button1Text = bundle.GetStringFromName("workOffline");
+      var checkVal = {value:0};
+
+      var result = Services.prompt.confirmEx(null, title, desc,
+        (Services.prompt.BUTTON_POS_0 * Services.prompt.BUTTON_TITLE_IS_STRING) +
+        (Services.prompt.BUTTON_POS_1 * Services.prompt.BUTTON_TITLE_IS_STRING),
+        button0Text, button1Text, null, null, checkVal);
+      debug ("result = " + result + "\n");
+      Services.io.manageOfflineStatus = manageOfflineStatus && result != 1;
+      Services.io.offline = result == 1;
+      if (result != 1 && wasOffline)
+        Services.prefs.setBoolPref("mailnews.playback_offline", true);
+    }
+  },
+
+  observe: function(aSubject, aTopic, aData)
+  {
+    debug("observe: " + aTopic);
+
+    if (aTopic == "profile-change-net-teardown")
+    {
+      debug("remembering offline state");
+      Services.prefs.setBoolPref("network.online", !Services.io.offline);
+    }
+    else if (aTopic == "app-startup")
+    {
+      Services.obs.addObserver(this, "profile-after-change", false);
+      Services.obs.addObserver(this, "profile-change-net-teardown", false);
+    }
+    else if (aTopic == "profile-after-change")
+    {
+      this.onProfileStartup();
+    }
+  },
+
+
+  QueryInterface: function(aIID)
+  {
+    if (aIID.equals(Components.interfaces.nsIObserver) ||
+        aIID.equals(Components.interfaces.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+function nsOfflineStartupModule()
+{
+}
+
+nsOfflineStartupModule.prototype =
+{
+  classID: Components.ID("3028a3c8-2165-42a4-b878-398da5d32736"),
+  _xpcom_factory:
+  {
+    createInstance: function(aOuter, aIID)
+    {
+      if (aOuter != null)
+        throw Components.results.NS_ERROR_NO_AGGREGATION;
+
+      // return the singleton
+      return nsOfflineStartup.QueryInterface(aIID);
+    },
+
+    lockFactory: function(aLock)
+    {
+      // quieten warnings
+    }
+  }
+};
+
+////////////////////////////////////////////////////////////////////////
+//
+//   Debug helper
+//
+////////////////////////////////////////////////////////////////////////
+if (!kDebug)
+  debug = function(m) {};
+else
+  debug = function(m) {dump("\t *** nsOfflineStartup: " + m + "\n");};
+
+var components = [nsOfflineStartupModule];
+var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/mailnews/extensions/offline-startup/js/offlineStartup.manifest b/mailnews/extensions/offline-startup/js/offlineStartup.manifest
new file mode 100644
index 000000000..61df84f76
--- /dev/null
+++ b/mailnews/extensions/offline-startup/js/offlineStartup.manifest
@@ -0,0 +1,3 @@
+component {3028a3c8-2165-42a4-b878-398da5d32736} offlineStartup.js
+contract @mozilla.org/offline-startup;1 {3028a3c8-2165-42a4-b878-398da5d32736}
+category app-startup Offline-startup @mozilla.org/offline-startup;1
diff --git a/mailnews/extensions/offline-startup/moz.build b/mailnews/extensions/offline-startup/moz.build
new file mode 100644
index 000000000..a8a406295
--- /dev/null
+++ b/mailnews/extensions/offline-startup/moz.build
@@ -0,0 +1,10 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+EXTRA_COMPONENTS += [
+    'js/offlineStartup.js',
+    'js/offlineStartup.manifest',
+]
+
diff --git a/mailnews/extensions/smime/content/am-smime.js b/mailnews/extensions/smime/content/am-smime.js
new file mode 100644
index 000000000..4a90d0cd7
--- /dev/null
+++ b/mailnews/extensions/smime/content/am-smime.js
@@ -0,0 +1,478 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var nsIX509CertDB = Components.interfaces.nsIX509CertDB;
+var nsX509CertDBContractID = "@mozilla.org/security/x509certdb;1";
+var nsIX509Cert = Components.interfaces.nsIX509Cert;
+
+var email_recipient_cert_usage = 5;
+var email_signing_cert_usage = 4;
+
+var gIdentity;
+var gPref = null;
+var gEncryptionCertName = null;
+var gHiddenEncryptionPolicy = null;
+var gEncryptionChoices = null;
+var gSignCertName  = null;
+var gSignMessages  = null;
+var gEncryptAlways = null;
+var gNeverEncrypt = null;
+var gBundle = null;
+var gBrandBundle;
+var gSmimePrefbranch;
+var gEncryptionChoicesLocked;
+var gSigningChoicesLocked;
+var kEncryptionCertPref = "identity.encryption_cert_name";
+var kSigningCertPref = "identity.signing_cert_name";
+
+function onInit() 
+{
+  smimeInitializeFields();
+}
+
+function smimeInitializeFields()
+{
+  // initialize all of our elements based on the current identity values....
+  gEncryptionCertName = document.getElementById(kEncryptionCertPref);
+  gHiddenEncryptionPolicy = document.getElementById("identity.encryptionpolicy");
+  gEncryptionChoices = document.getElementById("encryptionChoices");
+  gSignCertName       = document.getElementById(kSigningCertPref);
+  gSignMessages       = document.getElementById("identity.sign_mail");
+  gEncryptAlways      = document.getElementById("encrypt_mail_always");
+  gNeverEncrypt       = document.getElementById("encrypt_mail_never");
+  gBundle             = document.getElementById("bundle_smime");
+  gBrandBundle        = document.getElementById("bundle_brand");
+
+  gEncryptionChoicesLocked = false;
+  gSigningChoicesLocked = false;
+
+  if (!gIdentity) {
+    // The user is going to create a new identity.
+    // Set everything to default values.
+    // Do not take over the values from gAccount.defaultIdentity
+    // as the new identity is going to have a different mail address.
+
+    gEncryptionCertName.value = "";
+    gEncryptionCertName.nickname = "";
+    gEncryptionCertName.dbKey = "";
+    gSignCertName.value = "";
+    gSignCertName.nickname = "";
+    gSignCertName.dbKey = "";
+
+    gEncryptAlways.setAttribute("disabled", true);
+    gNeverEncrypt.setAttribute("disabled", true);
+    gSignMessages.setAttribute("disabled", true);
+
+    gSignMessages.checked = false;
+    gEncryptionChoices.value = 0;
+  }
+  else {
+    var certdb = Components.classes[nsX509CertDBContractID].getService(nsIX509CertDB);
+    var x509cert = null;
+
+    gEncryptionCertName.value = gIdentity.getUnicharAttribute("encryption_cert_name");
+    gEncryptionCertName.dbKey = gIdentity.getCharAttribute("encryption_cert_dbkey");
+    // If we succeed in looking up the certificate by the dbkey pref, then
+    // append the serial number " [...]" to the display value, and remember the
+    // nickname in a separate property.
+    try {
+        if (certdb && gEncryptionCertName.dbKey &&
+            (x509cert = certdb.findCertByDBKey(gEncryptionCertName.dbKey))) {
+            gEncryptionCertName.value = x509cert.nickname + " [" + x509cert.serialNumber + "]";
+            gEncryptionCertName.nickname = x509cert.nickname;
+        }
+    } catch(e) {}
+
+    gEncryptionChoices.value = gIdentity.getIntAttribute("encryptionpolicy");
+
+    if (!gEncryptionCertName.value) {
+      gEncryptAlways.setAttribute("disabled", true);
+      gNeverEncrypt.setAttribute("disabled", true);
+    }
+    else {
+      enableEncryptionControls(true);
+    }
+
+    gSignCertName.value = gIdentity.getUnicharAttribute("signing_cert_name");
+    gSignCertName.dbKey = gIdentity.getCharAttribute("signing_cert_dbkey");
+    x509cert = null;
+    // same procedure as with gEncryptionCertName (see above)
+    try {
+        if (certdb && gSignCertName.dbKey &&
+            (x509cert = certdb.findCertByDBKey(gSignCertName.dbKey))) {
+            gSignCertName.value = x509cert.nickname + " [" + x509cert.serialNumber + "]";
+            gSignCertName.nickname = x509cert.nickname;
+        }
+    } catch(e) {}
+
+    gSignMessages.checked = gIdentity.getBoolAttribute("sign_mail");
+    if (!gSignCertName.value)
+    {
+      gSignMessages.setAttribute("disabled", true);
+    }
+    else {
+      enableSigningControls(true);
+    }
+  }
+
+  // Always start with enabling signing and encryption cert select buttons.
+  // This will keep the visibility of buttons in a sane state as user
+  // jumps from security panel of one account to another.
+  enableCertSelectButtons();
+
+  // Disable all locked elements on the panel
+  if (gIdentity)
+    onLockPreference();
+}
+
+function onPreInit(account, accountValues)
+{
+  gIdentity = account.defaultIdentity;
+}
+
+function onSave()
+{
+  smimeSave();
+}
+
+function smimeSave()
+{
+  // find out which radio for the encryption radio group is selected and set that on our hidden encryptionChoice pref....
+  var newValue = gEncryptionChoices.value;
+  gHiddenEncryptionPolicy.setAttribute('value', newValue);
+  gIdentity.setIntAttribute("encryptionpolicy", newValue);
+  gIdentity.setUnicharAttribute("encryption_cert_name",
+                                gEncryptionCertName.nickname || gEncryptionCertName.value);
+  gIdentity.setCharAttribute("encryption_cert_dbkey", gEncryptionCertName.dbKey);
+
+  gIdentity.setBoolAttribute("sign_mail", gSignMessages.checked);
+  gIdentity.setUnicharAttribute("signing_cert_name",
+                                gSignCertName.nickname || gSignCertName.value);
+  gIdentity.setCharAttribute("signing_cert_dbkey", gSignCertName.dbKey);
+}
+
+function smimeOnAcceptEditor()
+{
+  try {
+    if (!onOk())
+      return false;
+  }
+  catch (ex) {}
+
+  smimeSave();
+
+  return true;
+}
+
+function onLockPreference()
+{
+  var initPrefString = "mail.identity";
+  var finalPrefString;
+
+  var allPrefElements = [
+    { prefstring:"signingCertSelectButton", id:"signingCertSelectButton"},
+    { prefstring:"encryptionCertSelectButton", id:"encryptionCertSelectButton"},
+    { prefstring:"sign_mail", id:"identity.sign_mail"},
+    { prefstring:"encryptionpolicy", id:"encryptionChoices"}
+  ];
+
+  finalPrefString = initPrefString + "." + gIdentity.key + ".";
+  gSmimePrefbranch = Services.prefs.getBranch(finalPrefString);
+
+  disableIfLocked( allPrefElements );
+}
+
+
+// Does the work of disabling an element given the array which contains xul id/prefstring pairs.
+// Also saves the id/locked state in an array so that other areas of the code can avoid
+// stomping on the disabled state indiscriminately.
+function disableIfLocked( prefstrArray )
+{
+  var i;
+  for (i=0; i<prefstrArray.length; i++) {
+    var id = prefstrArray[i].id;
+    var element = document.getElementById(id);
+    if (gSmimePrefbranch.prefIsLocked(prefstrArray[i].prefstring)) {
+      // If encryption choices radio group is locked, make sure the individual 
+      // choices in the group are locked. Set a global (gEncryptionChoicesLocked) 
+      // indicating the status so that locking can be maintained further.
+      if (id == "encryptionChoices") {
+        document.getElementById("encrypt_mail_never").setAttribute("disabled", "true");
+        document.getElementById("encrypt_mail_always").setAttribute("disabled", "true");
+        gEncryptionChoicesLocked = true;
+      }
+      // If option to sign mail is locked (with true/false set in config file), disable
+      // the corresponding checkbox and set a global (gSigningChoicesLocked) in order to
+      // honor the locking as user changes other elements on the panel. 
+      if (id == "identity.sign_mail") {
+        document.getElementById("identity.sign_mail").setAttribute("disabled", "true");
+        gSigningChoicesLocked = true;
+      }
+      else {
+        element.setAttribute("disabled", "true");
+        if (id == "signingCertSelectButton") {
+          document.getElementById("signingCertClearButton").setAttribute("disabled", "true");
+        }
+        else if (id == "encryptionCertSelectButton") {
+          document.getElementById("encryptionCertClearButton").setAttribute("disabled", "true");
+        }
+      }
+    }
+  }
+}
+
+function alertUser(message)
+{
+  Services.prompt.alert(window,
+                        gBrandBundle.getString("brandShortName"),
+                        message);
+}
+
+function askUser(message)
+{
+  let button = Services.prompt.confirmEx(
+    window,
+    gBrandBundle.getString("brandShortName"),
+    message,
+    Services.prompt.STD_YES_NO_BUTTONS,
+    null,
+    null,
+    null,
+    null,
+    {});
+  // confirmEx returns button index:
+  return (button == 0);
+}
+
+function checkOtherCert(cert, pref, usage, msgNeedCertWantSame, msgWantSame, msgNeedCertWantToSelect, enabler)
+{
+  var otherCertInfo = document.getElementById(pref);
+  if (!otherCertInfo)
+    return;
+
+  if (otherCertInfo.dbKey == cert.dbKey)
+    // all is fine, same cert is now selected for both purposes
+    return;
+
+  var certdb = Components.classes[nsX509CertDBContractID].getService(nsIX509CertDB);
+  if (!certdb)
+    return;
+  
+  if (email_recipient_cert_usage == usage) {
+    matchingOtherCert = certdb.findEmailEncryptionCert(cert.nickname);
+  }
+  else if (email_signing_cert_usage == usage) {
+    matchingOtherCert = certdb.findEmailSigningCert(cert.nickname);
+  }
+  else
+    return;
+
+  var userWantsSameCert = false;
+
+  if (!otherCertInfo.value.length) {
+    if (matchingOtherCert && (matchingOtherCert.dbKey == cert.dbKey)) {
+      userWantsSameCert = askUser(gBundle.getString(msgNeedCertWantSame));
+    }
+    else {
+      if (askUser(gBundle.getString(msgNeedCertWantToSelect))) {
+        smimeSelectCert(pref);
+      }
+    }
+  }
+  else {
+    if (matchingOtherCert && (matchingOtherCert.dbKey == cert.dbKey)) {
+      userWantsSameCert = askUser(gBundle.getString(msgWantSame));
+    }
+  }
+
+  if (userWantsSameCert) {
+    otherCertInfo.value = cert.nickname + " [" + cert.serialNumber + "]";
+    otherCertInfo.nickname = cert.nickname;
+    otherCertInfo.dbKey = cert.dbKey;
+    enabler(true);
+  }
+}
+
+function smimeSelectCert(smime_cert)
+{
+  var certInfo = document.getElementById(smime_cert);
+  if (!certInfo)
+    return;
+
+  var picker = Components.classes["@mozilla.org/user_cert_picker;1"]
+               .createInstance(Components.interfaces.nsIUserCertPicker);
+  var canceled = new Object;
+  var x509cert = 0;
+  var certUsage;
+  var selectEncryptionCert;
+
+  if (smime_cert == kEncryptionCertPref) {
+    selectEncryptionCert = true;
+    certUsage = email_recipient_cert_usage;
+  } else if (smime_cert == kSigningCertPref) {
+    selectEncryptionCert = false;
+    certUsage = email_signing_cert_usage;
+  }
+
+  try {
+    x509cert = picker.pickByUsage(window,
+      certInfo.value,
+      certUsage, // this is from enum SECCertUsage
+      false, true,
+      gIdentity.email,
+      canceled);
+  } catch(e) {
+    canceled.value = false;
+    x509cert = null;
+  }
+
+  if (!canceled.value) {
+    if (!x509cert) {
+      if (gIdentity.email) {
+        alertUser(gBundle.getFormattedString(selectEncryptionCert ?
+                                             "NoEncryptionCertForThisAddress" :
+                                             "NoSigningCertForThisAddress",
+                                             [ gIdentity.email ]));
+      } else {
+        alertUser(gBundle.getString(selectEncryptionCert ?
+                                    "NoEncryptionCert" : "NoSigningCert"));
+      }
+    }
+    else {
+      certInfo.removeAttribute("disabled");
+      certInfo.value = x509cert.nickname + " [" + x509cert.serialNumber + "]";
+      certInfo.nickname = x509cert.nickname;
+      certInfo.dbKey = x509cert.dbKey;
+
+      if (selectEncryptionCert) {
+        enableEncryptionControls(true);
+
+        checkOtherCert(x509cert,
+          kSigningCertPref, email_signing_cert_usage, 
+          "signing_needCertWantSame", 
+          "signing_wantSame", 
+          "signing_needCertWantToSelect",
+          enableSigningControls);
+      } else {
+        enableSigningControls(true);
+
+        checkOtherCert(x509cert,
+          kEncryptionCertPref, email_recipient_cert_usage, 
+          "encryption_needCertWantSame", 
+          "encryption_wantSame", 
+          "encryption_needCertWantToSelect",
+          enableEncryptionControls);
+      }
+    }
+  }
+
+  enableCertSelectButtons();
+}
+
+function enableEncryptionControls(do_enable)
+{
+  if (gEncryptionChoicesLocked)
+    return;
+
+  if (do_enable) {
+    gEncryptAlways.removeAttribute("disabled");
+    gNeverEncrypt.removeAttribute("disabled");
+    gEncryptionCertName.removeAttribute("disabled");
+  }
+  else {
+    gEncryptAlways.setAttribute("disabled", "true");
+    gNeverEncrypt.setAttribute("disabled", "true");
+    gEncryptionCertName.setAttribute("disabled", "true");
+    gEncryptionChoices.value = 0;
+  }
+}
+
+function enableSigningControls(do_enable)
+{
+  if (gSigningChoicesLocked)
+    return;
+
+  if (do_enable) {
+    gSignMessages.removeAttribute("disabled");
+    gSignCertName.removeAttribute("disabled");
+  }
+  else {
+    gSignMessages.setAttribute("disabled", "true");
+    gSignCertName.setAttribute("disabled", "true");
+    gSignMessages.checked = false;
+  }
+}
+
+function enableCertSelectButtons()
+{
+  document.getElementById("signingCertSelectButton").removeAttribute("disabled");
+
+  if (document.getElementById('identity.signing_cert_name').value.length)
+    document.getElementById("signingCertClearButton").removeAttribute("disabled");
+  else
+    document.getElementById("signingCertClearButton").setAttribute("disabled", "true");
+
+  document.getElementById("encryptionCertSelectButton").removeAttribute("disabled");
+
+  if (document.getElementById('identity.encryption_cert_name').value.length)
+    document.getElementById("encryptionCertClearButton").removeAttribute("disabled");
+  else
+    document.getElementById("encryptionCertClearButton").setAttribute("disabled", "true");
+}
+
+function smimeClearCert(smime_cert)
+{
+  var certInfo = document.getElementById(smime_cert);
+  if (!certInfo)
+    return;
+
+  certInfo.setAttribute("disabled", "true");
+  certInfo.value = "";
+  certInfo.nickname = "";
+  certInfo.dbKey = "";
+
+  if (smime_cert == kEncryptionCertPref) {
+    enableEncryptionControls(false);
+  } else if (smime_cert == kSigningCertPref) {
+    enableSigningControls(false);
+  }
+
+  enableCertSelectButtons();
+}
+
+function openCertManager()
+{
+  // Check for an existing certManager window and focus it; it's not
+  // application modal.
+  let lastCertManager = Services.wm.getMostRecentWindow("mozilla:certmanager");
+  if (lastCertManager)
+    lastCertManager.focus();
+  else
+    window.openDialog("chrome://pippki/content/certManager.xul", "",
+                      "centerscreen,resizable=yes,dialog=no");
+}
+
+function openDeviceManager()
+{
+  // Check for an existing deviceManager window and focus it; it's not
+  // application modal.
+  let lastCertManager = Services.wm.getMostRecentWindow("mozilla:devicemanager");
+  if (lastCertManager)
+    lastCertManager.focus();
+  else
+    window.openDialog("chrome://pippki/content/device_manager.xul", "",
+                      "centerscreen,resizable=yes,dialog=no");
+}
+
+function smimeOnLoadEditor()
+{
+  smimeInitializeFields();
+
+  document.documentElement.setAttribute("ondialogaccept",
+                                        "return smimeOnAcceptEditor();");
+}
+
diff --git a/mailnews/extensions/smime/content/am-smime.xul b/mailnews/extensions/smime/content/am-smime.xul
new file mode 100644
index 000000000..bb46bb49d
--- /dev/null
+++ b/mailnews/extensions/smime/content/am-smime.xul
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css" type="text/css"?>
+
+<?xul-overlay href="chrome://messenger/content/am-smimeOverlay.xul"?>
+
+<!DOCTYPE page SYSTEM "chrome://messenger/locale/am-smime.dtd">
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        class="color-dialog"
+        onload="parent.onPanelLoaded('am-smime.xul');"
+        ondialogaccept="smimeOnAcceptEditor();">
+
+  <vbox flex="1" style="overflow: auto;">
+    <script type="application/javascript" src="chrome://messenger/content/AccountManager.js"/>
+    <script type="application/javascript" src="chrome://messenger/content/am-smime.js"/>
+
+    <dialogheader title="&securityTitle.label;"/>
+
+    <vbox flex="1" id="smimeEditing"/>
+  </vbox>
+
+</page>
diff --git a/mailnews/extensions/smime/content/am-smimeIdentityEditOverlay.xul b/mailnews/extensions/smime/content/am-smimeIdentityEditOverlay.xul
new file mode 100644
index 000000000..2ff5c2b7d
--- /dev/null
+++ b/mailnews/extensions/smime/content/am-smimeIdentityEditOverlay.xul
@@ -0,0 +1,39 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css"
+                 type="text/css"?>
+
+<?xul-overlay href="chrome://messenger/content/am-smimeOverlay.xul"?>
+
+<!DOCTYPE overlay SYSTEM "chrome://messenger/locale/am-smime.dtd">
+
+<!--
+  This is the overlay that adds the SMIME configurator
+  to the identity editor of the account manager
+-->
+<overlay id="smimeAmIdEditOverlay"
+    xmlns:html="http://www.w3.org/1999/xhtml"
+    xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <script type="application/javascript"
+          src="chrome://messenger/content/AccountManager.js"/>
+  <script type="application/javascript"
+          src="chrome://messenger/content/am-smime.js"/>
+
+  <tabs id="identitySettings">
+    <tab label="&securityTab.label;"/>
+  </tabs>
+
+  <tabpanels id="identityTabsPanels">
+    <vbox flex="1" name="smimeEditingContent" id="smimeEditing"/>
+  </tabpanels>
+
+  <script type="application/javascript">
+  <![CDATA[
+    window.addEventListener("load", smimeOnLoadEditor, false);
+  ]]>
+  </script>
+</overlay>
diff --git a/mailnews/extensions/smime/content/am-smimeOverlay.xul b/mailnews/extensions/smime/content/am-smimeOverlay.xul
new file mode 100644
index 000000000..eb76b4b2c
--- /dev/null
+++ b/mailnews/extensions/smime/content/am-smimeOverlay.xul
@@ -0,0 +1,102 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/accountManage.css"
+                 type="text/css"?>
+
+<!DOCTYPE overlay SYSTEM "chrome://messenger/locale/am-smime.dtd">
+
+<overlay xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <vbox id="smimeEditing">
+
+    <stringbundleset>
+      <stringbundle id="bundle_smime" src="chrome://messenger/locale/am-smime.properties"/>
+      <stringbundle id="bundle_brand" src="chrome://branding/locale/brand.properties"/>
+    </stringbundleset>
+
+    <label hidden="true" wsm_persist="true" id="identity.encryptionpolicy"/>
+
+    <description>&securityHeading.label;</description>
+
+    <groupbox id="signing.titlebox">
+      <caption label="&signingGroupTitle.label;"/>
+
+      <label value="&signingCert.message;" control="identity.signing_cert_name"
+             prefstring="mail.identity.%identitykey%.encryptionpolicy"/>
+
+      <hbox align="center">
+        <textbox id="identity.signing_cert_name" wsm_persist="true" flex="1"
+                 prefstring="mail.identity.%identitykey%.signing_cert_name"
+                 readonly="true" disabled="true"/>
+
+        <button id="signingCertSelectButton"
+                label="&digitalSign.certificate.button;"
+                accesskey="&digitalSign.certificate.accesskey;"
+                oncommand="smimeSelectCert('identity.signing_cert_name')"/>
+
+        <button id="signingCertClearButton"
+                label="&digitalSign.certificate_clear.button;"
+                accesskey="&digitalSign.certificate_clear.accesskey;"
+                oncommand="smimeClearCert('identity.signing_cert_name')"/>
+      </hbox>
+
+      <separator class="thin"/>
+
+      <checkbox id="identity.sign_mail" wsm_persist="true"
+                prefstring="mail.identity.%identitykey%.sign_mail"
+                label="&signMessage.label;" accesskey="&signMessage.accesskey;"/>
+    </groupbox>
+
+    <groupbox id="encryption.titlebox">
+      <caption label="&encryptionGroupTitle.label;"/>
+
+      <label value="&encryptionCert.message;"
+             control="identity.encryption_cert_name"/>
+
+      <hbox align="center">
+        <textbox id="identity.encryption_cert_name" wsm_persist="true" flex="1"
+                 prefstring="mail.identity.%identitykey%.encryption_cert_name"
+                 readonly="true" disabled="true"/>
+
+        <button id="encryptionCertSelectButton"
+                label="&encryption.certificate.button;"
+                accesskey="&encryption.certificate.accesskey;"
+                oncommand="smimeSelectCert('identity.encryption_cert_name')"/>
+
+        <button id="encryptionCertClearButton"
+                label="&encryption.certificate_clear.button;"
+                accesskey="&encryption.certificate_clear.accesskey;"
+                oncommand="smimeClearCert('identity.encryption_cert_name')"/>
+      </hbox>
+
+      <separator class="thin"/>
+
+      <label value="&encryptionChoiceLabel.label;" control="encryptionChoices"/>
+
+      <radiogroup id="encryptionChoices">
+        <radio id="encrypt_mail_never" wsm_persist="true" value="0"
+               label="&neverEncrypt.label;"
+               accesskey="&neverEncrypt.accesskey;"/>
+
+        <radio id="encrypt_mail_always" wsm_persist="true" value="2"
+               label="&alwaysEncryptMessage.label;"
+               accesskey="&alwaysEncryptMessage.accesskey;"/>
+      </radiogroup>
+    </groupbox>
+
+    <!-- Certificate manager -->
+    <groupbox id="smimeCertificateManager" orient="horizontal">
+      <caption label="&certificates.label;"/>
+      <button id="openCertManagerButton" oncommand="openCertManager();"
+              label="&manageCerts2.label;" accesskey="&manageCerts2.accesskey;"
+              prefstring="security.disable_button.openCertManager"/>
+      <button id="openDeviceManagerButton" oncommand="openDeviceManager();"
+              label="&manageDevices.label;" accesskey="&manageDevices.accesskey;"
+              prefstring="security.disable_button.openDeviceManager"/>
+    </groupbox>
+  </vbox>
+</overlay>
diff --git a/mailnews/extensions/smime/content/certFetchingStatus.js b/mailnews/extensions/smime/content/certFetchingStatus.js
new file mode 100644
index 000000000..8848ff9b6
--- /dev/null
+++ b/mailnews/extensions/smime/content/certFetchingStatus.js
@@ -0,0 +1,265 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* We expect the following arguments:
+   - pref name of LDAP directory to fetch from
+   - array with email addresses
+
+  Display modal dialog with message and stop button.
+  In onload, kick off binding to LDAP.
+  When bound, kick off the searches.
+  On finding certificates, import into permanent cert database.
+  When all searches are finished, close the dialog.
+*/
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var nsIX509CertDB = Components.interfaces.nsIX509CertDB;
+var nsX509CertDB = "@mozilla.org/security/x509certdb;1";
+var CertAttribute = "usercertificate;binary";
+
+var gEmailAddresses;
+var gDirectoryPref;
+var gLdapServerURL;
+var gLdapConnection;
+var gCertDB;
+var gLdapOperation;
+var gLogin;
+
+function onLoad()
+{
+  gDirectoryPref = window.arguments[0];
+  gEmailAddresses = window.arguments[1];
+
+  if (!gEmailAddresses.length)
+  {
+    window.close();
+    return;
+  }
+
+  setTimeout(search, 1);
+}
+
+function search()
+{
+  // get the login to authenticate as, if there is one
+  try {
+    gLogin = Services.prefs.getComplexValue(gDirectoryPref + ".auth.dn", Components.interfaces.nsISupportsString).data;
+  } catch (ex) {
+    // if we don't have this pref, no big deal
+  }
+
+  try {
+    let url = Services.prefs.getCharPref(gDirectoryPref + ".uri");
+
+    gLdapServerURL = Services.io
+      .newURI(url, null, null).QueryInterface(Components.interfaces.nsILDAPURL);
+
+    gLdapConnection = Components.classes["@mozilla.org/network/ldap-connection;1"]
+      .createInstance().QueryInterface(Components.interfaces.nsILDAPConnection);
+
+    gLdapConnection.init(gLdapServerURL, gLogin, new boundListener(),
+      null, Components.interfaces.nsILDAPConnection.VERSION3);
+
+  } catch (ex) {
+    dump(ex);
+    dump(" exception creating ldap connection\n");
+    window.close();
+  }
+}
+
+function stopFetching()
+{
+  if (gLdapOperation) {
+    try {
+      gLdapOperation.abandon();
+    }
+    catch (e) {
+    }
+  }
+  return true;
+}
+
+function importCert(ber_value)
+{
+  if (!gCertDB) {
+    gCertDB = Components.classes[nsX509CertDB].getService(nsIX509CertDB);
+  }
+
+  var cert_length = new Object();
+  var cert_bytes = ber_value.get(cert_length);
+
+  if (cert_bytes) {
+    gCertDB.importEmailCertificate(cert_bytes, cert_length.value, null);
+  }
+}
+
+function getLDAPOperation()
+{
+    gLdapOperation = Components.classes["@mozilla.org/network/ldap-operation;1"]
+      .createInstance().QueryInterface(Components.interfaces.nsILDAPOperation);
+
+    gLdapOperation.init(gLdapConnection,
+                        new ldapMessageListener(),
+                        null);
+}
+
+function getPassword()
+{
+  // we only need a password if we are using credentials
+  if (gLogin)
+  {
+    let authPrompter = Services.ww.getNewAuthPrompter(window.QueryInterface(Components.interfaces.nsIDOMWindow));
+    let strBundle = document.getElementById('bundle_ldap');
+    let password = { value: "" };
+
+    // nsLDAPAutocompleteSession uses asciiHost instead of host for the prompt text, I think we should be
+    // consistent.
+    if (authPrompter.promptPassword(strBundle.getString("authPromptTitle"),
+                                     strBundle.getFormattedString("authPromptText", [gLdapServerURL.asciiHost]),
+                                     gLdapServerURL.spec,
+                                     authPrompter.SAVE_PASSWORD_PERMANENTLY,
+                                     password))
+      return password.value;
+  }
+
+  return null;
+}
+
+function kickOffBind()
+{
+  try {
+    getLDAPOperation();
+    gLdapOperation.simpleBind(getPassword());
+  }
+  catch (e) {
+    window.close();
+  }
+}
+
+function kickOffSearch()
+{
+  try {
+    var prefix1 = "";
+    var suffix1 = "";
+
+    var urlFilter = gLdapServerURL.filter;
+
+    if (urlFilter != null && urlFilter.length > 0 && urlFilter != "(objectclass=*)") {
+      if (urlFilter.startsWith('(')) {
+        prefix1 = "(&" + urlFilter;
+      }
+      else {
+        prefix1 = "(&(" + urlFilter + ")";
+      }
+      suffix1 = ")";
+    }
+
+    var prefix2 = "";
+    var suffix2 = "";
+
+    if (gEmailAddresses.length > 1) {
+      prefix2 = "(|";
+      suffix2 = ")";
+    }
+
+    var mailFilter = "";
+
+    for (var i = 0; i < gEmailAddresses.length; ++i) {
+      mailFilter += "(mail=" + gEmailAddresses[i] + ")";
+    }
+
+    var filter = prefix1 + prefix2 + mailFilter + suffix2 + suffix1;
+
+    var wanted_attributes = CertAttribute;
+
+    // Max search results =>
+    // Double number of email addresses, because each person might have
+    // multiple certificates listed. We expect at most two certificates,
+    // one for signing, one for encrypting.
+    // Maybe that number should be larger, to allow for deployments,
+    // where even more certs can be stored per user???
+
+    var maxEntriesWanted = gEmailAddresses.length * 2;
+
+    getLDAPOperation();
+    gLdapOperation.searchExt(gLdapServerURL.dn, gLdapServerURL.scope,
+                             filter, wanted_attributes, 0, maxEntriesWanted);
+  }
+  catch (e) {
+    window.close();
+  }
+}
+
+
+function boundListener() {
+}
+
+boundListener.prototype.QueryInterface =
+  function(iid) {
+    if (iid.equals(Components.interfaces.nsISupports) ||
+        iid.equals(Components.interfaces.nsILDAPMessageListener))
+        return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+
+boundListener.prototype.onLDAPMessage =
+  function(aMessage) {
+  }
+
+boundListener.prototype.onLDAPInit =
+  function(aConn, aStatus) {
+    kickOffBind();
+  }
+
+
+function ldapMessageListener() {
+}
+
+ldapMessageListener.prototype.QueryInterface =
+  function(iid) {
+    if (iid.equals(Components.interfaces.nsISupports) ||
+        iid.equals(Components.interfaces.nsILDAPMessageListener))
+        return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+
+ldapMessageListener.prototype.onLDAPMessage =
+  function(aMessage) {
+    if (Components.interfaces.nsILDAPMessage.RES_SEARCH_RESULT == aMessage.type) {
+      window.close();
+      return;
+    }
+
+    if (Components.interfaces.nsILDAPMessage.RES_BIND == aMessage.type) {
+      if (Components.interfaces.nsILDAPErrors.SUCCESS != aMessage.errorCode) {
+        window.close();
+      }
+      else {
+        kickOffSearch();
+      }
+      return;
+    }
+
+    if (Components.interfaces.nsILDAPMessage.RES_SEARCH_ENTRY == aMessage.type) {
+      var outSize = new Object();
+      try {
+        var outBinValues = aMessage.getBinaryValues(CertAttribute, outSize);
+
+        var i;
+        for (i=0; i < outSize.value; ++i) {
+          importCert(outBinValues[i]);
+        }
+      }
+      catch (e) {
+      }
+      return;
+    }
+  }
+
+ldapMessageListener.prototype.onLDAPInit =
+  function(aConn, aStatus) {
+  }
diff --git a/mailnews/extensions/smime/content/certFetchingStatus.xul b/mailnews/extensions/smime/content/certFetchingStatus.xul
new file mode 100644
index 000000000..29b824fc9
--- /dev/null
+++ b/mailnews/extensions/smime/content/certFetchingStatus.xul
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger/skin/smime/certFetchingStatus.css" type="text/css"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://messenger-smime/locale/certFetchingStatus.dtd">
+
+<dialog id="certFetchingStatus" title="&title.label;"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"      
+  style="width: 50em;"
+  buttons="cancel"
+  buttonlabelcancel="&stop.label;"
+  ondialogcancel="return stopFetching();"
+  onload="onLoad();">
+
+  <stringbundle id="bundle_ldap" src="chrome://mozldap/locale/ldap.properties"/>
+<script type="application/javascript" src="chrome://messenger-smime/content/certFetchingStatus.js"/>
+
+  <description>&info.message;</description>
+
+</dialog>
diff --git a/mailnews/extensions/smime/content/certpicker.js b/mailnews/extensions/smime/content/certpicker.js
new file mode 100644
index 000000000..19554066f
--- /dev/null
+++ b/mailnews/extensions/smime/content/certpicker.js
@@ -0,0 +1,73 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const nsIDialogParamBlock = Components.interfaces.nsIDialogParamBlock;
+
+var dialogParams;
+var itemCount = 0;
+
+function onLoad()
+{
+  dialogParams = window.arguments[0].QueryInterface(nsIDialogParamBlock);
+
+  var selectElement = document.getElementById("nicknames");
+  itemCount = dialogParams.GetInt(0);
+
+  var selIndex = dialogParams.GetInt(1);
+  if (selIndex < 0) {
+    selIndex = 0;
+  }
+
+  for (let i = 0; i < itemCount; i++) {
+    let menuItemNode = document.createElement("menuitem");
+    let nick = dialogParams.GetString(i);
+    menuItemNode.setAttribute("value", i);
+    menuItemNode.setAttribute("label", nick); // This is displayed.
+    selectElement.firstChild.appendChild(menuItemNode);
+
+    if (selIndex == i) {
+      selectElement.selectedItem = menuItemNode;
+    }
+  }
+
+  dialogParams.SetInt(0, 0); // Set cancel return value.
+  setDetails();
+}
+
+function setDetails()
+{
+  let selItem = document.getElementById("nicknames").value;
+  if (selItem.length == 0) {
+    return;
+  }
+
+  let index = parseInt(selItem);
+  let details = dialogParams.GetString(index + itemCount);
+  document.getElementById("details").value = details;
+}
+
+function onCertSelected()
+{
+  setDetails();
+}
+
+function doOK()
+{
+  // Signal that the user accepted.
+  dialogParams.SetInt(0, 1);
+
+  // Signal the index of the selected cert in the list of cert nicknames
+  // provided.
+  let index = parseInt(document.getElementById("nicknames").value);
+  dialogParams.SetInt(1, index);
+  return true;
+}
+
+function doCancel()
+{
+  dialogParams.SetInt(0, 0); // Signal that the user cancelled.
+  return true;
+}
diff --git a/mailnews/extensions/smime/content/certpicker.xul b/mailnews/extensions/smime/content/certpicker.xul
new file mode 100644
index 000000000..2c4cd3b22
--- /dev/null
+++ b/mailnews/extensions/smime/content/certpicker.xul
@@ -0,0 +1,38 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+
+<!DOCTYPE dialog [
+<!ENTITY % amSMIMEDTD SYSTEM "chrome://messenger/locale/am-smime.dtd" >
+%amSMIMEDTD;
+]>
+
+<dialog id="certPicker" title="&certPicker.title;"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+  style="width: 50em;"
+  buttons="accept,cancel"
+  ondialogaccept="return doOK();"
+  ondialogcancel="return doCancel();"
+  onload="onLoad();">
+
+<script type="application/javascript"
+        src="chrome://messenger/content/certpicker.js"/>
+
+  <hbox align="center">
+    <broadcaster id="certSelected" oncommand="onCertSelected();"/>
+    <label id="pickerInfo" value="&certPicker.info;"/>
+    <!-- The items in this menulist must never be sorted,
+         but remain in the order filled by the application
+    -->
+    <menulist id="nicknames" observes="certSelected">
+      <menupopup/>
+    </menulist>
+  </hbox>
+  <separator class="thin"/>
+  <label value="&certPicker.detailsLabel;"/>
+  <textbox readonly="true" id="details" multiline="true"
+           style="height: 12em;" flex="1"/>
+</dialog>
diff --git a/mailnews/extensions/smime/content/msgCompSMIMEOverlay.js b/mailnews/extensions/smime/content/msgCompSMIMEOverlay.js
new file mode 100644
index 000000000..582a073ea
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgCompSMIMEOverlay.js
@@ -0,0 +1,357 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// Account encryption policy values:
+// const kEncryptionPolicy_Never = 0;
+// 'IfPossible' was used by ns4.
+// const kEncryptionPolicy_IfPossible = 1;
+var kEncryptionPolicy_Always = 2;
+
+var gEncryptedURIService =
+        Components.classes["@mozilla.org/messenger-smime/smime-encrypted-uris-service;1"]
+                  .getService(Components.interfaces.nsIEncryptedSMIMEURIsService);
+
+var gNextSecurityButtonCommand = "";
+var gSMFields = null;
+var gEncryptOptionChanged;
+var gSignOptionChanged;
+
+function onComposerLoad()
+{
+  // Are we already set up ? Or are the required fields missing ?
+  if (gSMFields || !gMsgCompose || !gMsgCompose.compFields)
+    return;
+
+  gMsgCompose.compFields.securityInfo = null;
+
+  gSMFields = Components.classes["@mozilla.org/messenger-smime/composefields;1"]
+                        .createInstance(Components.interfaces.nsIMsgSMIMECompFields);
+  if (!gSMFields)
+    return;
+
+  gMsgCompose.compFields.securityInfo = gSMFields;
+
+  // Set up the intial security state.
+  gSMFields.requireEncryptMessage =
+    gCurrentIdentity.getIntAttribute("encryptionpolicy") == kEncryptionPolicy_Always;
+  if (!gSMFields.requireEncryptMessage &&
+      gEncryptedURIService &&
+      gEncryptedURIService.isEncrypted(gMsgCompose.originalMsgURI))
+  {
+    // Override encryption setting if original is known as encrypted.
+    gSMFields.requireEncryptMessage = true;
+  }
+  if (gSMFields.requireEncryptMessage)
+    setEncryptionUI();
+  else
+    setNoEncryptionUI();
+
+  gSMFields.signMessage = gCurrentIdentity.getBoolAttribute("sign_mail");
+  if (gSMFields.signMessage)
+    setSignatureUI();
+  else
+    setNoSignatureUI();
+}
+
+addEventListener("load", smimeComposeOnLoad, {capture: false, once: true});
+
+// this function gets called multiple times
+function smimeComposeOnLoad()
+{
+  onComposerLoad();
+
+  top.controllers.appendController(SecurityController);
+
+  addEventListener("compose-from-changed", onComposerFromChanged, true);
+  addEventListener("compose-send-message", onComposerSendMessage, true);
+
+  addEventListener("unload", smimeComposeOnUnload, {capture: false, once: true});
+}
+
+function smimeComposeOnUnload()
+{
+  removeEventListener("compose-from-changed", onComposerFromChanged, true);
+  removeEventListener("compose-send-message", onComposerSendMessage, true);
+
+  top.controllers.removeController(SecurityController);
+}
+
+function showNeedSetupInfo()
+{
+  let compSmimeBundle = document.getElementById("bundle_comp_smime");
+  let brandBundle = document.getElementById("bundle_brand");
+  if (!compSmimeBundle || !brandBundle)
+    return;
+
+  let buttonPressed = Services.prompt.confirmEx(window,
+    brandBundle.getString("brandShortName"),
+    compSmimeBundle.getString("NeedSetup"),
+    Services.prompt.STD_YES_NO_BUTTONS, 0, 0, 0, null, {});
+  if (buttonPressed == 0)
+    openHelp("sign-encrypt", "chrome://communicator/locale/help/suitehelp.rdf");
+}
+
+function toggleEncryptMessage()
+{
+  if (!gSMFields)
+    return;
+
+  gSMFields.requireEncryptMessage = !gSMFields.requireEncryptMessage;
+
+  if (gSMFields.requireEncryptMessage)
+  {
+    // Make sure we have a cert.
+    if (!gCurrentIdentity.getUnicharAttribute("encryption_cert_name"))
+    {
+      gSMFields.requireEncryptMessage = false;
+      showNeedSetupInfo();
+      return;
+    }
+
+    setEncryptionUI();
+  }
+  else
+  {
+    setNoEncryptionUI();
+  }
+
+  gEncryptOptionChanged = true;
+}
+
+function toggleSignMessage()
+{
+  if (!gSMFields)
+    return;
+
+  gSMFields.signMessage = !gSMFields.signMessage;
+
+  if (gSMFields.signMessage) // make sure we have a cert name...
+  {
+    if (!gCurrentIdentity.getUnicharAttribute("signing_cert_name"))
+    {
+      gSMFields.signMessage = false;
+      showNeedSetupInfo();
+      return;
+    }
+
+    setSignatureUI();
+  }
+  else
+  {
+    setNoSignatureUI();
+  }
+
+  gSignOptionChanged = true;
+}
+
+function setSecuritySettings(menu_id)
+{
+  if (!gSMFields)
+    return;
+
+  document.getElementById("menu_securityEncryptRequire" + menu_id)
+          .setAttribute("checked", gSMFields.requireEncryptMessage);
+  document.getElementById("menu_securitySign" + menu_id)
+          .setAttribute("checked", gSMFields.signMessage);
+}
+
+function setNextCommand(what)
+{
+  gNextSecurityButtonCommand = what;
+}
+
+function doSecurityButton()
+{
+  var what = gNextSecurityButtonCommand;
+  gNextSecurityButtonCommand = "";
+
+  switch (what)
+  {
+    case "encryptMessage":
+      toggleEncryptMessage();
+      break;
+
+    case "signMessage":
+      toggleSignMessage();
+      break;
+
+    case "show":
+    default:
+      showMessageComposeSecurityStatus();
+  }
+}
+
+function setNoSignatureUI()
+{
+  top.document.getElementById("securityStatus").removeAttribute("signing");
+  top.document.getElementById("signing-status").collapsed = true;
+}
+
+function setSignatureUI()
+{
+  top.document.getElementById("securityStatus").setAttribute("signing", "ok");
+  top.document.getElementById("signing-status").collapsed = false;
+}
+
+function setNoEncryptionUI()
+{
+  top.document.getElementById("securityStatus").removeAttribute("crypto");
+  top.document.getElementById("encryption-status").collapsed = true;
+}
+
+function setEncryptionUI()
+{
+  top.document.getElementById("securityStatus").setAttribute("crypto", "ok");
+  top.document.getElementById("encryption-status").collapsed = false;
+}
+
+function showMessageComposeSecurityStatus()
+{
+  Recipients2CompFields(gMsgCompose.compFields);
+
+  window.openDialog(
+    "chrome://messenger-smime/content/msgCompSecurityInfo.xul",
+    "",
+    "chrome,modal,resizable,centerscreen",
+    {
+      compFields : gMsgCompose.compFields,
+      subject : GetMsgSubjectElement().value,
+      smFields : gSMFields,
+      isSigningCertAvailable :
+        gCurrentIdentity.getUnicharAttribute("signing_cert_name") != "",
+      isEncryptionCertAvailable :
+        gCurrentIdentity.getUnicharAttribute("encryption_cert_name") != "",
+      currentIdentity : gCurrentIdentity
+    }
+  );
+}
+
+var SecurityController =
+{
+  supportsCommand: function(command)
+  {
+    switch (command)
+    {
+      case "cmd_viewSecurityStatus":
+        return true;
+
+      default:
+        return false;
+    }
+  },
+
+  isCommandEnabled: function(command)
+  {
+    switch (command)
+    {
+      case "cmd_viewSecurityStatus":
+        return true;
+
+      default:
+        return false;
+    }
+  }
+};
+
+function onComposerSendMessage()
+{
+  let missingCount = new Object();
+  let emailAddresses = new Object();
+
+  try
+  {
+    if (!gMsgCompose.compFields.securityInfo.requireEncryptMessage)
+      return;
+
+    Components.classes["@mozilla.org/messenger-smime/smimejshelper;1"]
+              .createInstance(Components.interfaces.nsISMimeJSHelper)
+              .getNoCertAddresses(gMsgCompose.compFields,
+                                  missingCount,
+                                  emailAddresses);
+  }
+  catch (e)
+  {
+    return;
+  }
+
+  if (missingCount.value > 0)
+  {
+    // The rules here: If the current identity has a directoryServer set, then
+    // use that, otherwise, try the global preference instead.
+
+    let autocompleteDirectory;
+
+    // Does the current identity override the global preference?
+    if (gCurrentIdentity.overrideGlobalPref)
+    {
+      autocompleteDirectory = gCurrentIdentity.directoryServer;
+    }
+    else
+    {
+      // Try the global one
+      if (Services.prefs.getBoolPref("ldap_2.autoComplete.useDirectory"))
+        autocompleteDirectory =
+          Services.prefs.getCharPref("ldap_2.autoComplete.directoryServer");
+    }
+
+    if (autocompleteDirectory)
+      window.openDialog("chrome://messenger-smime/content/certFetchingStatus.xul",
+                        "",
+                        "chrome,modal,resizable,centerscreen",
+                        autocompleteDirectory,
+                        emailAddresses.value);
+  }
+}
+
+function onComposerFromChanged()
+{
+  if (!gSMFields)
+    return;
+
+  var encryptionPolicy = gCurrentIdentity.getIntAttribute("encryptionpolicy");
+  var useEncryption = false;
+
+  if (!gEncryptOptionChanged)
+  {
+    // Encryption wasn't manually checked.
+    // Set up the encryption policy from the setting of the new identity.
+
+    // 0 == never, 1 == if possible (ns4), 2 == always encrypt.
+    useEncryption = (encryptionPolicy == kEncryptionPolicy_Always);
+  }
+  else
+  {
+    useEncryption = !!gCurrentIdentity.getUnicharAttribute("encryption_cert_name");
+  }
+
+  gSMFields.requireEncryptMessage = useEncryption;
+  if (useEncryption)
+    setEncryptionUI();
+  else
+    setNoEncryptionUI();
+
+  // - If signing is disabled, we will not turn it on automatically.
+  // - If signing is enabled, but the new account defaults to not sign, we will turn signing off.
+  var signMessage = gCurrentIdentity.getBoolAttribute("sign_mail");
+  var useSigning = false;
+
+  if (!gSignOptionChanged)
+  {
+    // Signing wasn't manually checked.
+    // Set up the signing policy from the setting of the new identity.
+    useSigning = signMessage;
+  }
+  else
+  {
+    useSigning = !!gCurrentIdentity.getUnicharAttribute("signing_cert_name");
+  }
+  gSMFields.signMessage = useSigning;
+  if (useSigning)
+    setSignatureUI();
+  else
+    setNoSignatureUI();
+}
diff --git a/mailnews/extensions/smime/content/msgCompSMIMEOverlay.xul b/mailnews/extensions/smime/content/msgCompSMIMEOverlay.xul
new file mode 100644
index 000000000..ec6495e20
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgCompSMIMEOverlay.xul
@@ -0,0 +1,85 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<?xml-stylesheet href="chrome://messenger/skin/smime/msgCompSMIMEOverlay.css" type="text/css"?>
+
+<!DOCTYPE overlay SYSTEM "chrome://messenger-smime/locale/msgCompSMIMEOverlay.dtd">
+
+<overlay xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <script type="application/javascript" src="chrome://messenger-smime/content/msgCompSMIMEOverlay.js"/>
+
+  <window id="msgcomposeWindow">
+    <broadcaster id="securityStatus" crypto="" signing=""/>
+    <observes element="securityStatus" attribute="crypto" />
+    <observes element="securityStatus" attribute="signing" />
+    <stringbundle id="bundle_comp_smime" src="chrome://messenger-smime/locale/msgCompSMIMEOverlay.properties"/>
+    <stringbundle id="bundle_brand" src="chrome://branding/locale/brand.properties"/>
+  </window>
+
+  <menupopup id="optionsMenuPopup"
+             onpopupshowing="setSecuritySettings(1);">
+    <menuseparator id="smimeOptionsSeparator"/>
+
+    <menuitem id="menu_securityEncryptRequire1"
+              type="checkbox"
+              label="&menu_securityEncryptRequire.label;"
+              accesskey="&menu_securityEncryptRequire.accesskey;"
+              oncommand="toggleEncryptMessage();"/>
+    <menuitem id="menu_securitySign1"
+              type="checkbox"
+              label="&menu_securitySign.label;"
+              accesskey="&menu_securitySign.accesskey;"
+              oncommand="toggleSignMessage();"/>
+  </menupopup>
+
+  <toolbarpalette id="MsgComposeToolbarPalette">
+    <toolbarbutton id="button-security"
+                   type="menu-button"
+                   class="toolbarbutton-1"
+                   label="&securityButton.label;"
+                   tooltiptext="&securityButton.tooltip;"
+                   oncommand="doSecurityButton();">
+      <menupopup onpopupshowing="setSecuritySettings(2);">
+        <menuitem id="menu_securityEncryptRequire2"
+                  type="checkbox"
+                  label="&menu_securityEncryptRequire.label;"
+                  accesskey="&menu_securityEncryptRequire.accesskey;"
+                  oncommand="setNextCommand('encryptMessage');"/>
+        <menuitem id="menu_securitySign2"
+                  type="checkbox"
+                  label="&menu_securitySign.label;"
+                  accesskey="&menu_securitySign.accesskey;"
+                  oncommand="setNextCommand('signMessage');"/>
+        <menuseparator id="smimeToolbarButtonSeparator"/>
+        <menuitem id="menu_securityStatus2"
+                  label="&menu_securityStatus.label;"
+                  accesskey="&menu_securityStatus.accesskey;"
+                  oncommand="setNextCommand('show');"/>
+      </menupopup>
+    </toolbarbutton>
+  </toolbarpalette>
+
+  <statusbar id="status-bar">
+    <statusbarpanel insertbefore="offline-status" class="statusbarpanel-iconic" collapsed="true"
+      id="signing-status" oncommand="showMessageComposeSecurityStatus();"/>
+    <statusbarpanel insertbefore="offline-status" class="statusbarpanel-iconic" collapsed="true"
+      id="encryption-status" oncommand="showMessageComposeSecurityStatus();"/>
+  </statusbar>
+
+  <commandset id="composeCommands">
+    <command id="cmd_viewSecurityStatus" oncommand="showMessageComposeSecurityStatus();"/>
+  </commandset>
+
+  <menupopup id="menu_View_Popup">
+    <menuseparator id="viewMenuBeforeSecurityStatusSeparator"/>
+    <menuitem id="menu_viewSecurityStatus"
+              label="&menu_viewSecurityStatus.label;"
+              accesskey="&menu_viewSecurityStatus.accesskey;"
+              command="cmd_viewSecurityStatus"/>
+  </menupopup>
+
+</overlay>
diff --git a/mailnews/extensions/smime/content/msgCompSecurityInfo.js b/mailnews/extensions/smime/content/msgCompSecurityInfo.js
new file mode 100644
index 000000000..5a2a7432f
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgCompSecurityInfo.js
@@ -0,0 +1,244 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var gListBox;
+var gViewButton;
+var gBundle;
+
+var gEmailAddresses;
+var gCertStatusSummaries;
+var gCertIssuedInfos;
+var gCertExpiresInfos;
+var gCerts;
+var gCount;
+
+var gSMimeContractID = "@mozilla.org/messenger-smime/smimejshelper;1";
+var gISMimeJSHelper = Components.interfaces.nsISMimeJSHelper;
+var gIX509Cert = Components.interfaces.nsIX509Cert;
+var nsICertificateDialogs = Components.interfaces.nsICertificateDialogs;
+var nsCertificateDialogs = "@mozilla.org/nsCertificateDialogs;1"
+
+function getStatusExplanation(value)
+{
+  switch (value)
+  {
+    case gIX509Cert.VERIFIED_OK:
+      return gBundle.getString("StatusValid");
+
+    case gIX509Cert.NOT_VERIFIED_UNKNOWN:
+    case gIX509Cert.INVALID_CA:
+    case gIX509Cert.USAGE_NOT_ALLOWED:
+      return gBundle.getString("StatusInvalid");
+
+    case gIX509Cert.CERT_REVOKED:
+      return gBundle.getString("StatusRevoked");
+
+    case gIX509Cert.CERT_EXPIRED:
+      return gBundle.getString("StatusExpired");
+
+    case gIX509Cert.CERT_NOT_TRUSTED:
+    case gIX509Cert.ISSUER_NOT_TRUSTED:
+    case gIX509Cert.ISSUER_UNKNOWN:
+      return gBundle.getString("StatusUntrusted");
+  }
+
+  return "";
+}
+
+function onLoad()
+{
+  var params = window.arguments[0];
+  if (!params)
+    return;
+
+  var helper = Components.classes[gSMimeContractID].createInstance(gISMimeJSHelper);
+
+  if (!helper)
+    return;
+
+  gListBox = document.getElementById("infolist");
+  gViewButton = document.getElementById("viewCertButton");
+  gBundle = document.getElementById("bundle_smime_comp_info");
+
+  gEmailAddresses = new Object();
+  gCertStatusSummaries = new Object();
+  gCertIssuedInfos = new Object();
+  gCertExpiresInfos = new Object();
+  gCerts = new Object();
+  gCount = new Object();
+  var canEncrypt = new Object();
+
+  var allow_ldap_cert_fetching = false;
+
+  try {  
+    if (params.compFields.securityInfo.requireEncryptMessage) {
+      allow_ldap_cert_fetching = true;
+    }
+  }
+  catch (e)
+  {
+  }
+
+  while (true)
+  {
+    try
+    {
+      helper.getRecipientCertsInfo(
+        params.compFields,
+        gCount,
+        gEmailAddresses,
+        gCertStatusSummaries,
+        gCertIssuedInfos,
+        gCertExpiresInfos,
+        gCerts,
+        canEncrypt);
+    }
+    catch (e)
+    {
+      dump(e);
+      return;
+    }
+
+    if (!allow_ldap_cert_fetching)
+      break;
+
+    allow_ldap_cert_fetching = false;
+
+    var missing = new Array();
+
+    for (var j = gCount.value - 1; j >= 0; --j)
+    {
+      if (!gCerts.value[j])
+      {
+        missing[missing.length] = gEmailAddresses.value[j];
+      }
+    }
+
+    if (missing.length > 0)
+    {
+      var autocompleteLdap = Services.prefs
+        .getBoolPref("ldap_2.autoComplete.useDirectory");
+
+      if (autocompleteLdap)
+      {
+        var autocompleteDirectory = null;
+        if (params.currentIdentity.overrideGlobalPref) {
+          autocompleteDirectory = params.currentIdentity.directoryServer;
+        } else {
+          autocompleteDirectory = Services.prefs
+            .getCharPref("ldap_2.autoComplete.directoryServer");
+        }
+
+        if (autocompleteDirectory)
+        {
+          window.openDialog('chrome://messenger-smime/content/certFetchingStatus.xul',
+            '',
+            'chrome,resizable=1,modal=1,dialog=1',
+            autocompleteDirectory,
+            missing
+          );
+        }
+      }
+    }
+  }
+
+  if (gBundle)
+  {
+    var yes_string = gBundle.getString("StatusYes");
+    var no_string = gBundle.getString("StatusNo");
+    var not_possible_string = gBundle.getString("StatusNotPossible");
+
+    var signed_element = document.getElementById("signed");
+    var encrypted_element = document.getElementById("encrypted");
+
+    if (params.smFields.requireEncryptMessage)
+    {
+      if (params.isEncryptionCertAvailable && canEncrypt.value)
+      {
+        encrypted_element.value = yes_string;
+      }
+      else
+      {
+        encrypted_element.value = not_possible_string;
+      }
+    }
+    else
+    {
+      encrypted_element.value = no_string;
+    }
+
+    if (params.smFields.signMessage)
+    {
+      if (params.isSigningCertAvailable)
+      {
+        signed_element.value = yes_string;
+      }
+      else
+      {
+        signed_element.value = not_possible_string;
+      }
+    }
+    else
+    {
+      signed_element.value = no_string;
+    }
+  }
+
+  var imax = gCount.value;
+
+  for (var i = 0; i < imax; ++i)
+  {
+    var listitem  = document.createElement("listitem");
+
+    listitem.appendChild(createCell(gEmailAddresses.value[i]));
+
+    if (!gCerts.value[i])
+    {
+      listitem.appendChild(createCell(gBundle.getString("StatusNotFound")));
+    }
+    else
+    {
+      listitem.appendChild(createCell(getStatusExplanation(gCertStatusSummaries.value[i])));
+      listitem.appendChild(createCell(gCertIssuedInfos.value[i]));
+      listitem.appendChild(createCell(gCertExpiresInfos.value[i]));
+    }
+
+    gListBox.appendChild(listitem);
+  }
+}
+
+function onSelectionChange(event)
+{
+  gViewButton.disabled = !(gListBox.selectedItems.length == 1 &&
+                           certForRow(gListBox.selectedIndex));
+}
+
+function viewCertHelper(parent, cert) {
+  var cd = Components.classes[nsCertificateDialogs].getService(nsICertificateDialogs);
+  cd.viewCert(parent, cert);
+}
+
+function certForRow(aRowIndex) {
+  return gCerts.value[aRowIndex];
+}
+
+function viewSelectedCert()
+{
+  if (!gViewButton.disabled)
+    viewCertHelper(window, certForRow(gListBox.selectedIndex));
+}
+
+function doHelpButton()
+{
+  openHelp('compose_security', 'chrome://communicator/locale/help/suitehelp.rdf');
+}
+
+function createCell(label)
+{
+  var cell = document.createElement("listcell");
+  cell.setAttribute("label", label)
+  return cell;
+}
diff --git a/mailnews/extensions/smime/content/msgCompSecurityInfo.xul b/mailnews/extensions/smime/content/msgCompSecurityInfo.xul
new file mode 100644
index 000000000..c8769d621
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgCompSecurityInfo.xul
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger/skin/smime/msgCompSecurityInfo.css" type="text/css"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://messenger-smime/locale/msgCompSecurityInfo.dtd">
+
+<dialog id="msgCompSecurityInfo" title="&title.label;"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"      
+  style="width: 50em;"
+  persist="width height"
+  buttons="accept"
+  onload="onLoad();">
+
+  <script type="application/javascript" src="chrome://messenger-smime/content/msgCompSecurityInfo.js"/>
+
+  <stringbundle id="bundle_smime_comp_info" src="chrome://messenger-smime/locale/msgCompSecurityInfo.properties"/> 
+
+  <description>&subject.plaintextWarning;</description>
+  <separator class="thin"/>
+  <description>&status.heading;</description>
+  <grid>
+    <columns>
+      <column/>
+      <column/>
+    </columns>
+    <rows>
+      <row>
+        <label value="&status.signed;"/>
+        <label id="signed"/>
+      </row>
+      <row>
+        <label value="&status.encrypted;"/>
+        <label id="encrypted"/>
+      </row>
+    </rows>
+  </grid>
+
+  <separator class="thin"/>
+  <label value="&status.certificates;" control="infolist"/>
+
+  <listbox id="infolist" flex="1"
+        onselect="onSelectionChange(event);">
+    <listcols>
+      <listcol flex="3" width="0"/>
+      <splitter class="tree-splitter"/>
+      <listcol flex="1" width="0"/>
+      <splitter class="tree-splitter"/>
+      <listcol flex="2" width="0"/>
+      <splitter class="tree-splitter"/>
+      <listcol flex="2" width="0"/>
+    </listcols>
+    <listhead>
+      <listheader label="&tree.recipient;"/>
+      <listheader label="&tree.status;"/>
+      <listheader label="&tree.issuedDate;"/>
+      <listheader label="&tree.expiresDate;"/>
+    </listhead>
+  </listbox>
+  <hbox pack="start">
+    <button id="viewCertButton" disabled="true"
+            label="&view.label;" accesskey="&view.accesskey;"
+            oncommand="viewSelectedCert();"/>
+  </hbox>
+</dialog>
diff --git a/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.js b/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.js
new file mode 100644
index 000000000..2d9469d6c
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.js
@@ -0,0 +1,264 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gSignedUINode = null;
+var gEncryptedUINode = null;
+var gSMIMEContainer = null;
+var gStatusBar = null;
+var gSignedStatusPanel = null;
+var gEncryptedStatusPanel = null;
+
+var gEncryptedURIService = null;
+var gMyLastEncryptedURI = null;
+
+var gSMIMEBundle = null;
+// var gBrandBundle; -- defined in mailWindow.js
+
+// manipulates some globals from msgReadSMIMEOverlay.js
+
+var nsICMSMessageErrors = Components.interfaces.nsICMSMessageErrors;
+
+/// Get the necko URL for the message URI.
+function neckoURLForMessageURI(aMessageURI)
+{
+  let msgSvc = Components.classes["@mozilla.org/messenger;1"]
+    .createInstance(Components.interfaces.nsIMessenger)
+    .messageServiceFromURI(aMessageURI);
+  let neckoURI = {};
+  msgSvc.GetUrlForUri(aMessageURI, neckoURI, null);
+  return neckoURI.value.spec;
+}
+
+var smimeHeaderSink = 
+{ 
+  maxWantedNesting: function()
+  {
+    return 1;
+  },
+
+  signedStatus: function(aNestingLevel, aSignatureStatus, aSignerCert)
+  {
+    if (aNestingLevel > 1) {
+      // we are not interested
+      return;
+    }
+
+    gSignatureStatus = aSignatureStatus;
+    gSignerCert = aSignerCert;
+
+    gSMIMEContainer.collapsed = false;
+    gSignedUINode.collapsed = false;
+    gSignedStatusPanel.collapsed = false;
+  
+    switch (aSignatureStatus) {
+      case nsICMSMessageErrors.SUCCESS:
+        gSignedUINode.setAttribute("signed", "ok");
+        gStatusBar.setAttribute("signed", "ok");
+        break;
+
+      case nsICMSMessageErrors.VERIFY_NOT_YET_ATTEMPTED:
+        gSignedUINode.setAttribute("signed", "unknown");
+        gStatusBar.setAttribute("signed", "unknown");
+        break;
+
+      case nsICMSMessageErrors.VERIFY_CERT_WITHOUT_ADDRESS:
+      case nsICMSMessageErrors.VERIFY_HEADER_MISMATCH:
+        gSignedUINode.setAttribute("signed", "mismatch");
+        gStatusBar.setAttribute("signed", "mismatch");
+        break;
+
+      default:
+        gSignedUINode.setAttribute("signed", "notok");
+        gStatusBar.setAttribute("signed", "notok");
+        break;
+    }
+  },
+
+  encryptionStatus: function(aNestingLevel, aEncryptionStatus, aRecipientCert)
+  {
+    if (aNestingLevel > 1) {
+      // we are not interested
+      return;
+    }
+
+    gEncryptionStatus = aEncryptionStatus;
+    gEncryptionCert = aRecipientCert;
+
+    gSMIMEContainer.collapsed = false; 
+    gEncryptedUINode.collapsed = false;
+    gEncryptedStatusPanel.collapsed = false; 
+
+    if (nsICMSMessageErrors.SUCCESS == aEncryptionStatus)
+    {
+      gEncryptedUINode.setAttribute("encrypted", "ok");
+      gStatusBar.setAttribute("encrypted", "ok");
+    }
+    else
+    {
+      gEncryptedUINode.setAttribute("encrypted", "notok");
+      gStatusBar.setAttribute("encrypted", "notok");
+    }
+    
+    if (gEncryptedURIService)
+    {
+      // Remember the message URI and the corresponding necko URI.
+      gMyLastEncryptedURI = GetLoadedMessage();
+      gEncryptedURIService.rememberEncrypted(gMyLastEncryptedURI);
+      gEncryptedURIService.rememberEncrypted(
+        neckoURLForMessageURI(gMyLastEncryptedURI));
+    }
+
+    switch (aEncryptionStatus)
+    {
+      case nsICMSMessageErrors.SUCCESS:
+      case nsICMSMessageErrors.ENCRYPT_INCOMPLETE:
+        break;
+      default:
+        var brand = gBrandBundle.getString("brandShortName");
+        var title = gSMIMEBundle.getString("CantDecryptTitle").replace(/%brand%/g, brand);
+        var body = gSMIMEBundle.getString("CantDecryptBody").replace(/%brand%/g, brand);
+
+        // insert our message
+        msgWindow.displayHTMLInMessagePane(title,
+         "<html>\n" +
+         "<body bgcolor=\"#fafaee\">\n" +
+         "<center><br><br><br>\n" +
+         "<table>\n" +
+         "<tr><td>\n" +
+         "<center><strong><font size=\"+3\">\n" +
+         title+"</font></center><br>\n" +
+         body+"\n" +
+         "</td></tr></table></center></body></html>", false);
+    }
+  },
+
+  QueryInterface : function(iid)
+  {
+    if (iid.equals(Components.interfaces.nsIMsgSMIMEHeaderSink) || iid.equals(Components.interfaces.nsISupports))
+      return this;
+    throw Components.results.NS_NOINTERFACE;
+  }
+};
+
+function forgetEncryptedURI()
+{
+  if (gMyLastEncryptedURI && gEncryptedURIService)
+  {
+    gEncryptedURIService.forgetEncrypted(gMyLastEncryptedURI);
+    gEncryptedURIService.forgetEncrypted(
+      neckoURLForMessageURI(gMyLastEncryptedURI));
+    gMyLastEncryptedURI = null;
+  }
+}
+
+function onSMIMEStartHeaders()
+{
+  gEncryptionStatus = -1;
+  gSignatureStatus = -1;
+  
+  gSignerCert = null;
+  gEncryptionCert = null;
+  
+  gSMIMEContainer.collapsed = true;
+
+  gSignedUINode.collapsed = true;
+  gSignedUINode.removeAttribute("signed");
+  gSignedStatusPanel.collapsed = true;
+  gStatusBar.removeAttribute("signed");
+
+  gEncryptedUINode.collapsed = true;
+  gEncryptedUINode.removeAttribute("encrypted");
+  gEncryptedStatusPanel.collapsed = true; 
+  gStatusBar.removeAttribute("encrypted");
+
+  forgetEncryptedURI();
+}
+
+function onSMIMEEndHeaders()
+{}
+
+function onSmartCardChange()
+{
+  // only reload encrypted windows
+  if (gMyLastEncryptedURI && gEncryptionStatus != -1)
+    ReloadMessage();
+}
+
+function msgHdrViewSMIMEOnLoad(event)
+{
+  window.crypto.enableSmartCardEvents = true;
+  document.addEventListener("smartcard-insert", onSmartCardChange, false);
+  document.addEventListener("smartcard-remove", onSmartCardChange, false);
+  if (!gSMIMEBundle)
+    gSMIMEBundle = document.getElementById("bundle_read_smime");
+
+  // we want to register our security header sink as an opaque nsISupports
+  // on the msgHdrSink used by mail.....
+  msgWindow.msgHeaderSink.securityInfo = smimeHeaderSink;
+
+  gSignedUINode = document.getElementById('signedHdrIcon');
+  gEncryptedUINode = document.getElementById('encryptedHdrIcon');
+  gSMIMEContainer = document.getElementById('smimeBox');
+  gStatusBar = document.getElementById('status-bar');
+  gSignedStatusPanel = document.getElementById('signed-status');
+  gEncryptedStatusPanel = document.getElementById('encrypted-status');
+
+  // add ourself to the list of message display listeners so we get notified when we are about to display a
+  // message.
+  var listener = {};
+  listener.onStartHeaders = onSMIMEStartHeaders;
+  listener.onEndHeaders = onSMIMEEndHeaders;
+  gMessageListeners.push(listener);
+
+  gEncryptedURIService = 
+    Components.classes["@mozilla.org/messenger-smime/smime-encrypted-uris-service;1"]
+    .getService(Components.interfaces.nsIEncryptedSMIMEURIsService);
+}
+
+function msgHdrViewSMIMEOnUnload(event)
+{
+  window.crypto.enableSmartCardEvents = false;
+  document.removeEventListener("smartcard-insert", onSmartCardChange, false);
+  document.removeEventListener("smartcard-remove", onSmartCardChange, false);
+  forgetEncryptedURI();
+  removeEventListener("messagepane-loaded", msgHdrViewSMIMEOnLoad, true);
+  removeEventListener("messagepane-unloaded", msgHdrViewSMIMEOnUnload, true);
+  removeEventListener("messagepane-hide", msgHdrViewSMIMEOnMessagePaneHide, true);
+  removeEventListener("messagepane-unhide", msgHdrViewSMIMEOnMessagePaneUnhide, true);
+}
+
+function msgHdrViewSMIMEOnMessagePaneHide()
+{
+  gSMIMEContainer.collapsed = true;
+  gSignedUINode.collapsed = true;
+  gSignedStatusPanel.collapsed = true;
+  gEncryptedUINode.collapsed = true;
+  gEncryptedStatusPanel.collapsed = true; 
+}
+
+function msgHdrViewSMIMEOnMessagePaneUnhide()
+{
+  if (gEncryptionStatus != -1 || gSignatureStatus != -1)
+  {
+    gSMIMEContainer.collapsed = false;
+
+    if (gSignatureStatus != -1)
+    {
+      gSignedUINode.collapsed = false;
+      gSignedStatusPanel.collapsed = false;
+    }
+
+    if (gEncryptionStatus != -1)
+    {
+      gEncryptedUINode.collapsed = false;
+      gEncryptedStatusPanel.collapsed = false;
+    }
+  }
+}
+
+addEventListener('messagepane-loaded', msgHdrViewSMIMEOnLoad, true);
+addEventListener('messagepane-unloaded', msgHdrViewSMIMEOnUnload, true);
+addEventListener('messagepane-hide', msgHdrViewSMIMEOnMessagePaneHide, true);
+addEventListener('messagepane-unhide', msgHdrViewSMIMEOnMessagePaneUnhide, true);
diff --git a/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.xul b/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.xul
new file mode 100644
index 000000000..957d2a15b
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgHdrViewSMIMEOverlay.xul
@@ -0,0 +1,29 @@
+<?xml version="1.0"?> 
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/smime/msgHdrViewSMIMEOverlay.css" type="text/css"?> 
+
+<overlay xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <script type="application/javascript" src="chrome://messenger-smime/content/msgHdrViewSMIMEOverlay.js"/>
+<!-- These stringbundles are already defined in msgReadSMIMEOverlay.xul!
+  <stringbundleset id="stringbundleset">
+    <stringbundle id="bundle_read_smime" src="chrome://messenger-smime/locale/msgReadSMIMEOverlay.properties"/>
+    <stringbundle id="bundle_brand" src="chrome://branding/locale/brand.properties"/>
+  </stringbundleset>
+-->
+
+  <hbox id="expandedHeaderView">
+    <vbox id="smimeBox" insertafter="expandedHeaders" collapsed="true">
+      <spacer flex="1"/>
+      <image id="signedHdrIcon"
+             onclick="showMessageReadSecurityInfo();" collapsed="true"/>
+      <image id="encryptedHdrIcon"
+             onclick="showMessageReadSecurityInfo();" collapsed="true"/>
+      <spacer flex="1"/>
+    </vbox>
+  </hbox>
+</overlay>
+
diff --git a/mailnews/extensions/smime/content/msgReadSMIMEOverlay.js b/mailnews/extensions/smime/content/msgReadSMIMEOverlay.js
new file mode 100644
index 000000000..ab362d418
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgReadSMIMEOverlay.js
@@ -0,0 +1,102 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var gEncryptionStatus = -1;
+var gSignatureStatus = -1;
+var gSignerCert = null;
+var gEncryptionCert = null;
+
+addEventListener("load", smimeReadOnLoad, {capture: false, once: true});
+
+function smimeReadOnLoad()
+{
+  top.controllers.appendController(SecurityController);
+
+  addEventListener("unload", smimeReadOnUnload, {capture: false, once: true});
+}
+
+function smimeReadOnUnload()
+{
+  top.controllers.removeController(SecurityController);
+}
+
+function showImapSignatureUnknown()
+{
+  let readSmimeBundle = document.getElementById("bundle_read_smime");
+  let brandBundle = document.getElementById("bundle_brand");
+  if (!readSmimeBundle || !brandBundle)
+    return;
+
+  if (Services.prompt.confirm(window, brandBundle.getString("brandShortName"),
+                              readSmimeBundle.getString("ImapOnDemand")))
+  {
+    gDBView.reloadMessageWithAllParts();
+  }
+}
+
+function showMessageReadSecurityInfo()
+{
+  let gSignedUINode = document.getElementById("signedHdrIcon");
+  if (gSignedUINode && gSignedUINode.getAttribute("signed") == "unknown")
+  {
+    showImapSignatureUnknown();
+    return;
+  }
+
+  let params = Components.classes["@mozilla.org/embedcomp/dialogparam;1"]
+    .createInstance(Components.interfaces.nsIDialogParamBlock);
+  params.objects = Components.classes["@mozilla.org/array;1"]
+    .createInstance(Components.interfaces.nsIMutableArray);
+  // Append even if null... the receiver must handle that.
+  params.objects.appendElement(gSignerCert, false);
+  params.objects.appendElement(gEncryptionCert, false);
+
+  // int array starts with index 0, but that is used for window exit status
+  params.SetInt(1, gSignatureStatus);
+  params.SetInt(2, gEncryptionStatus);
+
+  window.openDialog("chrome://messenger-smime/content/msgReadSecurityInfo.xul",
+                    "", "chrome,resizable,modal,dialog,centerscreen", params);
+}
+
+var SecurityController =
+{
+  supportsCommand: function(command)
+  {
+    switch (command)
+    {
+      case "cmd_viewSecurityStatus":
+        return true;
+
+      default:
+        return false;
+    }
+  },
+
+  isCommandEnabled: function(command)
+  {
+    switch (command)
+    {
+      case "cmd_viewSecurityStatus":
+        if (document.documentElement.getAttribute('windowtype') == "mail:messageWindow")
+          return GetNumSelectedMessages() > 0;
+
+        if (GetNumSelectedMessages() > 0 && gDBView)
+        {
+          let enabled = {value: false};
+          let checkStatus = {};
+          gDBView.getCommandStatus(nsMsgViewCommandType.cmdRequiringMsgBody,
+                                   enabled, checkStatus);
+          return enabled.value;
+        }
+        // else: fall through.
+
+      default:
+        return false;
+    }
+  }
+};
diff --git a/mailnews/extensions/smime/content/msgReadSMIMEOverlay.xul b/mailnews/extensions/smime/content/msgReadSMIMEOverlay.xul
new file mode 100644
index 000000000..a55828c0f
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgReadSMIMEOverlay.xul
@@ -0,0 +1,34 @@
+<?xml version="1.0"?> 
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://messenger/skin/smime/msgReadSMIMEOverlay.css" type="text/css"?>
+
+<!DOCTYPE overlay SYSTEM "chrome://messenger-smime/locale/msgReadSMIMEOverlay.dtd">
+
+<overlay xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <script type="application/javascript" src="chrome://messenger-smime/content/msgReadSMIMEOverlay.js"/>
+
+  <commandset id="mailViewMenuItems">
+    <command id="cmd_viewSecurityStatus" oncommand="showMessageReadSecurityInfo();" disabled="true"/>
+  </commandset>
+
+  <menupopup id="menu_View_Popup">
+    <menuitem insertafter="pageSourceMenuItem" label="&menu_securityStatus.label;"
+      accesskey="&menu_securityStatus.accesskey;" command="cmd_viewSecurityStatus"/>
+  </menupopup>
+
+  <statusbar id="status-bar">
+    <statusbarpanel insertbefore="offline-status" class="statusbarpanel-iconic"
+      id="signed-status" collapsed="true" oncommand="showMessageReadSecurityInfo();"/>
+    <statusbarpanel insertbefore="offline-status" class="statusbarpanel-iconic"
+      id="encrypted-status" collapsed="true" oncommand="showMessageReadSecurityInfo();"/>
+    <stringbundle id="bundle_read_smime" src="chrome://messenger-smime/locale/msgReadSMIMEOverlay.properties"/>
+<!-- This stringbundle is already defined on top window level!
+    <stringbundle id="bundle_brand" src="chrome://branding/locale/brand.properties"/>
+-->
+  </statusbar>
+
+</overlay>
diff --git a/mailnews/extensions/smime/content/msgReadSecurityInfo.js b/mailnews/extensions/smime/content/msgReadSecurityInfo.js
new file mode 100644
index 000000000..310cfc18a
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgReadSecurityInfo.js
@@ -0,0 +1,232 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var nsIDialogParamBlock = Components.interfaces.nsIDialogParamBlock;
+var nsIX509Cert = Components.interfaces.nsIX509Cert;
+var nsICMSMessageErrors = Components.interfaces.nsICMSMessageErrors;
+var nsICertificateDialogs = Components.interfaces.nsICertificateDialogs;
+var nsCertificateDialogs = "@mozilla.org/nsCertificateDialogs;1"
+
+var gSignerCert = null;
+var gEncryptionCert = null;
+
+var gSignatureStatus = -1;
+var gEncryptionStatus = -1;
+
+function setText(id, value) {
+  var element = document.getElementById(id);
+  if (!element)
+    return;
+  if (element.hasChildNodes())
+    element.firstChild.remove();
+  var textNode = document.createTextNode(value);
+  element.appendChild(textNode);
+}
+
+function onLoad()
+{
+  var paramBlock = window.arguments[0].QueryInterface(nsIDialogParamBlock);
+  paramBlock.objects.QueryInterface(Components.interfaces.nsIMutableArray);
+  try {
+    gSignerCert = paramBlock.objects.queryElementAt(0, nsIX509Cert);
+  } catch(e) { } // maybe null
+  try {
+    gEncryptionCert = paramBlock.objects.queryElementAt(1, nsIX509Cert);
+  } catch(e) { } // maybe null
+
+  gSignatureStatus = paramBlock.GetInt(1);
+  gEncryptionStatus = paramBlock.GetInt(2);
+
+  var bundle = document.getElementById("bundle_smime_read_info");
+
+  if (bundle) {
+    var sigInfoLabel = null;
+    var sigInfoHeader = null;
+    var sigInfo = null;
+    var sigInfo_clueless = false;
+
+    switch (gSignatureStatus) {
+      case -1:
+      case nsICMSMessageErrors.VERIFY_NOT_SIGNED:
+        sigInfoLabel = "SINoneLabel";
+        sigInfo = "SINone";
+        break;
+
+      case nsICMSMessageErrors.SUCCESS:
+        sigInfoLabel = "SIValidLabel";
+        sigInfo = "SIValid";
+        break;
+
+
+      case nsICMSMessageErrors.VERIFY_BAD_SIGNATURE:
+      case nsICMSMessageErrors.VERIFY_DIGEST_MISMATCH:
+        sigInfoLabel = "SIInvalidLabel";
+        sigInfoHeader = "SIInvalidHeader";
+        sigInfo = "SIContentAltered";
+        break;
+
+      case nsICMSMessageErrors.VERIFY_UNKNOWN_ALGO:
+      case nsICMSMessageErrors.VERIFY_UNSUPPORTED_ALGO:
+        sigInfoLabel = "SIInvalidLabel";
+        sigInfoHeader = "SIInvalidHeader";
+        sigInfo = "SIInvalidCipher";
+        break;
+
+      case nsICMSMessageErrors.VERIFY_HEADER_MISMATCH:
+        sigInfoLabel = "SIPartiallyValidLabel";
+        sigInfoHeader = "SIPartiallyValidHeader";
+        sigInfo = "SIHeaderMismatch";
+        break;
+
+      case nsICMSMessageErrors.VERIFY_CERT_WITHOUT_ADDRESS:
+        sigInfoLabel = "SIPartiallyValidLabel";
+        sigInfoHeader = "SIPartiallyValidHeader";
+        sigInfo = "SICertWithoutAddress";
+        break;
+
+      case nsICMSMessageErrors.VERIFY_UNTRUSTED:
+        sigInfoLabel = "SIInvalidLabel";
+        sigInfoHeader = "SIInvalidHeader";
+        sigInfo = "SIUntrustedCA";
+        // XXX Need to extend to communicate better errors
+        // might also be:
+        // SIExpired SIRevoked SINotYetValid SIUnknownCA SIExpiredCA SIRevokedCA SINotYetValidCA
+        break;
+
+      case nsICMSMessageErrors.VERIFY_NOT_YET_ATTEMPTED:
+      case nsICMSMessageErrors.GENERAL_ERROR:
+      case nsICMSMessageErrors.VERIFY_NO_CONTENT_INFO:
+      case nsICMSMessageErrors.VERIFY_BAD_DIGEST:
+      case nsICMSMessageErrors.VERIFY_NOCERT:
+      case nsICMSMessageErrors.VERIFY_ERROR_UNVERIFIED:
+      case nsICMSMessageErrors.VERIFY_ERROR_PROCESSING:
+      case nsICMSMessageErrors.VERIFY_MALFORMED_SIGNATURE:
+        sigInfoLabel = "SIInvalidLabel";
+        sigInfoHeader = "SIInvalidHeader";
+        sigInfo_clueless = true;
+        break;
+      default:
+        Components.utils.reportError("Unexpected gSignatureStatus: " +
+                                     gSignatureStatus);
+    }
+
+    document.getElementById("signatureLabel").value = 
+      bundle.getString(sigInfoLabel);
+
+    var label;
+    if (sigInfoHeader) {
+      label = document.getElementById("signatureHeader");
+      label.collapsed = false;
+      label.value = bundle.getString(sigInfoHeader);
+    }
+
+    var str;
+    if (sigInfo) {
+      str = bundle.getString(sigInfo);
+    }
+    else if (sigInfo_clueless) {
+      str = bundle.getString("SIClueless") + " (" + gSignatureStatus + ")";
+    }
+    setText("signatureExplanation", str);
+
+    var encInfoLabel = null;
+    var encInfoHeader = null;
+    var encInfo = null;
+    var encInfo_clueless = false;
+
+    switch (gEncryptionStatus) {
+      case -1:
+        encInfoLabel = "EINoneLabel2";
+        encInfo = "EINone";
+        break;
+
+      case nsICMSMessageErrors.SUCCESS:
+        encInfoLabel = "EIValidLabel";
+        encInfo = "EIValid";
+        break;
+
+      case nsICMSMessageErrors.ENCRYPT_INCOMPLETE:
+        encInfoLabel = "EIInvalidLabel";
+        encInfo = "EIContentAltered";
+        break;
+
+      case nsICMSMessageErrors.GENERAL_ERROR:
+        encInfoLabel = "EIInvalidLabel";
+        encInfoHeader = "EIInvalidHeader";
+        encInfo_clueless = 1;
+        break;
+      default:
+        Components.utils.reportError("Unexpected gEncryptionStatus: " +
+                                     gEncryptionStatus);
+    }
+
+    document.getElementById("encryptionLabel").value = 
+      bundle.getString(encInfoLabel);
+
+    if (encInfoHeader) {
+      label = document.getElementById("encryptionHeader");
+      label.collapsed = false;
+      label.value = bundle.getString(encInfoHeader);
+    }
+
+    if (encInfo) {
+      str = bundle.getString(encInfo);
+    }
+    else if (encInfo_clueless) {
+      str = bundle.getString("EIClueless");
+    }
+    setText("encryptionExplanation", str);
+  }
+
+  if (gSignerCert) {
+    document.getElementById("signatureCert").collapsed = false;
+    if (gSignerCert.subjectName) {
+      document.getElementById("signedBy").value = gSignerCert.commonName;
+    }
+    if (gSignerCert.emailAddress) {
+      document.getElementById("signerEmail").value = gSignerCert.emailAddress;
+    }
+    if (gSignerCert.issuerName) {
+      document.getElementById("sigCertIssuedBy").value = gSignerCert.issuerCommonName;
+    }
+  }
+
+  if (gEncryptionCert) {
+    document.getElementById("encryptionCert").collapsed = false;
+    if (gEncryptionCert.subjectName) {
+      document.getElementById("encryptedFor").value = gEncryptionCert.commonName;
+    }
+    if (gEncryptionCert.emailAddress) {
+      document.getElementById("recipientEmail").value = gEncryptionCert.emailAddress;
+    }
+    if (gEncryptionCert.issuerName) {
+      document.getElementById("encCertIssuedBy").value = gEncryptionCert.issuerCommonName;
+    }
+  }
+}
+
+function viewCertHelper(parent, cert) {
+  var cd = Components.classes[nsCertificateDialogs].getService(nsICertificateDialogs);
+  cd.viewCert(parent, cert);
+}
+
+function viewSignatureCert()
+{
+  if (gSignerCert) {
+    viewCertHelper(window, gSignerCert);
+  }
+}
+
+function viewEncryptionCert()
+{
+  if (gEncryptionCert) {
+    viewCertHelper(window, gEncryptionCert);
+  }
+}
+
+function doHelpButton()
+{
+  openHelp('received_security');
+}
diff --git a/mailnews/extensions/smime/content/msgReadSecurityInfo.xul b/mailnews/extensions/smime/content/msgReadSecurityInfo.xul
new file mode 100644
index 000000000..8e0a1f5f5
--- /dev/null
+++ b/mailnews/extensions/smime/content/msgReadSecurityInfo.xul
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger/skin/smime/msgReadSecurityInfo.css" type="text/css"?> 
+
+<!DOCTYPE dialog SYSTEM "chrome://messenger-smime/locale/msgReadSecurityInfo.dtd">
+
+<dialog id="msgReadSecurityInfo" title="&status.label;"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"      
+  style="width: 40em;"
+  buttons="accept"
+  onload="onLoad();">
+
+  <script type="application/javascript" src="chrome://messenger-smime/content/msgReadSecurityInfo.js"/>
+
+  <stringbundle id="bundle_smime_read_info" src="chrome://messenger-smime/locale/msgSecurityInfo.properties"/> 
+
+  <vbox flex="1">
+    <label id="signatureLabel"/>
+    <label id="signatureHeader" collapsed="true"/>
+    <description id="signatureExplanation"/>
+    <vbox id="signatureCert" collapsed="true">
+      <hbox>
+        <label id="signedByLabel">&signer.name;</label>
+        <description id="signedBy"/>
+      </hbox>
+      <hbox>
+        <label id="signerEmailLabel">&email.address;</label>
+        <description id="signerEmail"/>
+      </hbox>
+      <hbox>
+        <label id="sigCertIssuedByLabel">&issuer.name;</label>
+        <description id="sigCertIssuedBy"/>
+      </hbox>
+      <hbox>
+        <button id="signatureCertView" label="&signatureCert.label;"
+                oncommand="viewSignatureCert()"/>
+      </hbox>
+    </vbox>
+
+    <separator/>
+
+    <label id="encryptionLabel"/>
+    <label id="encryptionHeader" collapsed="true"/>
+    <description id="encryptionExplanation"/>
+    <vbox id="encryptionCert" collapsed="true">
+      <hbox>
+        <label id="encryptedForLabel">&recipient.name;</label>
+        <description id="encryptedFor"/>
+      </hbox>
+      <hbox>
+        <label id="recipientEmailLabel">&email.address;</label>
+        <description id="recipientEmail"/>
+      </hbox>
+      <hbox>
+        <label id="encCertIssuedByLabel">&issuer.name;</label>
+        <description id="encCertIssuedBy"/>
+      </hbox>
+      <hbox>
+        <button id="encryptionCertView" label="&encryptionCert.label;"
+                oncommand="viewEncryptionCert()"/>
+      </hbox>
+    </vbox>
+  </vbox>
+</dialog>
diff --git a/mailnews/extensions/smime/content/smime.js b/mailnews/extensions/smime/content/smime.js
new file mode 100644
index 000000000..8259ead1a
--- /dev/null
+++ b/mailnews/extensions/smime/content/smime.js
@@ -0,0 +1,14 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* 
+   Add any default pref values we want for smime
+*/
+
+pref("mail.identity.default.encryption_cert_name","");
+pref("mail.identity.default.encryptionpolicy",  0);
+pref("mail.identity.default.signing_cert_name", "");
+pref("mail.identity.default.sign_mail", false);
+
+
diff --git a/mailnews/extensions/smime/jar.mn b/mailnews/extensions/smime/jar.mn
new file mode 100644
index 000000000..548fef63c
--- /dev/null
+++ b/mailnews/extensions/smime/jar.mn
@@ -0,0 +1,30 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifdef MOZ_SUITE
+messenger.jar:
+% content messenger-smime %content/messenger-smime/
+% overlay chrome://messenger/content/messengercompose/messengercompose.xul     chrome://messenger-smime/content/msgCompSMIMEOverlay.xul
+% overlay chrome://messenger/content/msgHdrViewOverlay.xul                     chrome://messenger-smime/content/msgHdrViewSMIMEOverlay.xul
+% overlay chrome://messenger/content/mailWindowOverlay.xul                     chrome://messenger-smime/content/msgReadSMIMEOverlay.xul
+% overlay chrome://messenger/content/am-identity-edit.xul                      chrome://messenger/content/am-smimeIdentityEditOverlay.xul
+    content/messenger/am-smime.xul                                   (content/am-smime.xul)
+    content/messenger/am-smime.js                                    (content/am-smime.js)
+    content/messenger/am-smimeIdentityEditOverlay.xul                (content/am-smimeIdentityEditOverlay.xul)
+    content/messenger/am-smimeOverlay.xul                            (content/am-smimeOverlay.xul)
+    content/messenger/certpicker.js                                  (content/certpicker.js)
+    content/messenger/certpicker.xul                                 (content/certpicker.xul)
+    content/messenger-smime/msgCompSMIMEOverlay.js                   (content/msgCompSMIMEOverlay.js)
+    content/messenger-smime/msgCompSMIMEOverlay.xul                  (content/msgCompSMIMEOverlay.xul)
+    content/messenger-smime/msgReadSMIMEOverlay.js                   (content/msgReadSMIMEOverlay.js)
+    content/messenger-smime/msgReadSMIMEOverlay.xul                  (content/msgReadSMIMEOverlay.xul)
+    content/messenger-smime/msgHdrViewSMIMEOverlay.xul               (content/msgHdrViewSMIMEOverlay.xul)
+    content/messenger-smime/msgHdrViewSMIMEOverlay.js                (content/msgHdrViewSMIMEOverlay.js)
+    content/messenger-smime/msgCompSecurityInfo.xul                  (content/msgCompSecurityInfo.xul)
+    content/messenger-smime/msgCompSecurityInfo.js                   (content/msgCompSecurityInfo.js)
+    content/messenger-smime/msgReadSecurityInfo.xul                  (content/msgReadSecurityInfo.xul)
+    content/messenger-smime/msgReadSecurityInfo.js                   (content/msgReadSecurityInfo.js)
+    content/messenger-smime/certFetchingStatus.xul                   (content/certFetchingStatus.xul)
+    content/messenger-smime/certFetchingStatus.js                    (content/certFetchingStatus.js)
+#endif
diff --git a/mailnews/extensions/smime/moz.build b/mailnews/extensions/smime/moz.build
new file mode 100644
index 000000000..3adf6a50e
--- /dev/null
+++ b/mailnews/extensions/smime/moz.build
@@ -0,0 +1,15 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += [
+    'public',
+    'src',
+]
+
+JAR_MANIFESTS += ['jar.mn']
+
+JS_PREFERENCE_FILES += [
+    'content/smime.js',
+]
diff --git a/mailnews/extensions/smime/public/moz.build b/mailnews/extensions/smime/public/moz.build
new file mode 100644
index 000000000..b7acbb0b2
--- /dev/null
+++ b/mailnews/extensions/smime/public/moz.build
@@ -0,0 +1,15 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+XPIDL_SOURCES += [
+    'nsICertPickDialogs.idl',
+    'nsIEncryptedSMIMEURIsSrvc.idl',
+    'nsIMsgSMIMECompFields.idl',
+    'nsIMsgSMIMEHeaderSink.idl',
+    'nsISMimeJSHelper.idl',
+    'nsIUserCertPicker.idl',
+]
+
+XPIDL_MODULE = 'msgsmime'
diff --git a/mailnews/extensions/smime/public/nsICertPickDialogs.idl b/mailnews/extensions/smime/public/nsICertPickDialogs.idl
new file mode 100644
index 000000000..01a7f3712
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsICertPickDialogs.idl
@@ -0,0 +1,30 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIInterfaceRequestor;
+
+/**
+ * nsICertPickDialogs
+ * Provides generic UI for choosing a certificate
+ */
+[scriptable, uuid(51d59b08-1dd2-11b2-ad4a-a51b92f8a184)]
+interface nsICertPickDialogs : nsISupports
+{
+  /**
+   * PickCertificate
+   *   General purpose certificate prompter
+   */
+  void PickCertificate(in nsIInterfaceRequestor ctx,
+                       [array, size_is(count)] in wstring certNickList,
+                       [array, size_is(count)] in wstring certDetailsList,
+                       in unsigned long count,
+                       inout long selectedIndex,
+                       out boolean canceled);
+};
+
+%{C++
+#define NS_CERTPICKDIALOGS_CONTRACTID "@mozilla.org/nsCertPickDialogs;1"
+%}
diff --git a/mailnews/extensions/smime/public/nsIEncryptedSMIMEURIsSrvc.idl b/mailnews/extensions/smime/public/nsIEncryptedSMIMEURIsSrvc.idl
new file mode 100644
index 000000000..4b2b7c25c
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsIEncryptedSMIMEURIsSrvc.idl
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* This is a private interface used exclusively by SMIME. 
+   It provides functionality to the JS UI code,
+   that is only accessible from C++.
+*/
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(f86e55c9-530b-483f-91a7-10fb5b852488)]
+interface nsIEncryptedSMIMEURIsService : nsISupports 
+{
+  /// Remember that this URI is encrypted.
+  void rememberEncrypted(in AUTF8String uri);
+  
+  /// Forget that this URI is encrypted.
+  void forgetEncrypted(in AUTF8String uri);
+  
+  /// Check if this URI is encrypted.
+  boolean isEncrypted(in AUTF8String uri);
+};
diff --git a/mailnews/extensions/smime/public/nsIMsgSMIMECompFields.idl b/mailnews/extensions/smime/public/nsIMsgSMIMECompFields.idl
new file mode 100644
index 000000000..0688afd76
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsIMsgSMIMECompFields.idl
@@ -0,0 +1,18 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/* This is a private interface used exclusively by SMIME. NO ONE outside of extensions/smime
+   should have any knowledge nor should be referring to this interface. 
+*/
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(338E91F9-5970-4f81-B771-0822A32B1161)]
+interface nsIMsgSMIMECompFields : nsISupports 
+{
+  attribute boolean signMessage;
+  attribute boolean requireEncryptMessage;
+};
diff --git a/mailnews/extensions/smime/public/nsIMsgSMIMEHeaderSink.idl b/mailnews/extensions/smime/public/nsIMsgSMIMEHeaderSink.idl
new file mode 100644
index 000000000..9bfa41a04
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsIMsgSMIMEHeaderSink.idl
@@ -0,0 +1,23 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/* This is a private interface used exclusively by SMIME. NO ONE outside of extensions/smime
+   or the hard coded smime decryption files in mime/src should have any knowledge nor should 
+   be referring to this interface. 
+*/
+
+#include "nsISupports.idl"
+
+interface nsIX509Cert;
+
+[scriptable, uuid(25380FA1-E70C-4e82-B0BC-F31C2F41C470)]
+interface nsIMsgSMIMEHeaderSink : nsISupports 
+{
+  void signedStatus(in long aNestingLevel, in long aSignatureStatus, in nsIX509Cert aSignerCert);
+  void encryptionStatus(in long aNestingLevel, in long aEncryptionStatus, in nsIX509Cert aReceipientCert);
+
+  long maxWantedNesting(); // 1 == only info on outermost nesting level wanted
+};
diff --git a/mailnews/extensions/smime/public/nsISMimeJSHelper.idl b/mailnews/extensions/smime/public/nsISMimeJSHelper.idl
new file mode 100644
index 000000000..c29a77939
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsISMimeJSHelper.idl
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* This is a private interface used exclusively by SMIME. 
+   It provides functionality to the JS UI code,
+   that is only accessible from C++.
+*/
+
+#include "nsISupports.idl"
+
+interface nsIMsgCompFields;
+interface nsIX509Cert;
+
+[scriptable, uuid(a54e3c8f-a000-4901-898f-fafb297b1546)]
+interface nsISMimeJSHelper : nsISupports 
+{
+  /**
+   * Obtains detailed information about the certificate availability
+   * status of email recipients.
+   *
+   * @param compFields - Attributes of the composed message
+   *
+   * @param count - The number of entries in returned arrays
+   *
+   * @param emailAddresses - The list of all recipient email addresses
+   *
+   * @param certVerification - The verification/validity status of recipient certs
+   *
+   * @param certIssuedInfos - If a recipient cert was found, when has it been issued?
+   *
+   * @param certExpiredInfos - If a recipient cert was found, when will it expire?
+   *
+   * @param certs - The recipient certificates, which can contain null for not found
+   *
+   * @param canEncrypt - whether valid certificates have been found for all recipients
+   *
+   * @exception NS_ERROR_FAILURE - unexptected failure
+   *
+   * @exception NS_ERROR_OUT_OF_MEMORY - could not create the out list
+   *
+   * @exception NS_ERROR_INVALID_ARG
+   */
+  void getRecipientCertsInfo(in nsIMsgCompFields compFields,
+                             out unsigned long count,
+                             [array, size_is(count)] out wstring emailAddresses,
+                             [array, size_is(count)] out long certVerification,
+                             [array, size_is(count)] out wstring certIssuedInfos,
+                             [array, size_is(count)] out wstring certExpiresInfos,
+                             [array, size_is(count)] out nsIX509Cert certs,
+                             out boolean canEncrypt);
+
+  /**
+   * Obtains a list of email addresses where valid email recipient certificates
+   * are not yet available.
+   *
+   * @param compFields - Attributes of the composed message
+   *
+   * @param count - The number of returned email addresses
+   *
+   * @param emailAddresses - The list of email addresses without valid certs
+   *
+   * @exception NS_ERROR_FAILURE - unexptected failure
+   *
+   * @exception NS_ERROR_OUT_OF_MEMORY - could not create the out list
+   *
+   * @exception NS_ERROR_INVALID_ARG
+   */
+  void getNoCertAddresses(in nsIMsgCompFields compFields,
+                          out unsigned long count,
+                          [array, size_is(count)] out wstring emailAddresses);
+};
diff --git a/mailnews/extensions/smime/public/nsIUserCertPicker.idl b/mailnews/extensions/smime/public/nsIUserCertPicker.idl
new file mode 100644
index 000000000..666941c29
--- /dev/null
+++ b/mailnews/extensions/smime/public/nsIUserCertPicker.idl
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIX509Cert;
+interface nsIInterfaceRequestor;
+
+[scriptable, uuid(92396323-23f2-49e0-bf98-a25a725231ab)]
+interface nsIUserCertPicker : nsISupports {
+  nsIX509Cert pickByUsage(in nsIInterfaceRequestor ctx,
+                          in wstring selectedNickname,
+                          in long certUsage, // as defined by NSS enum SECCertUsage
+                          in boolean allowInvalid,
+                          in boolean allowDuplicateNicknames,
+                          in AString emailAddress, // optional - if non-empty,
+                                                   // skip certificates which
+                                                   // have at least one e-mail
+                                                   // address but do not
+                                                   // include this specific one
+                          out boolean canceled);
+};
+
+%{C++
+#define NS_CERT_PICKER_CONTRACTID "@mozilla.org/user_cert_picker;1"
+%}
diff --git a/mailnews/extensions/smime/src/moz.build b/mailnews/extensions/smime/src/moz.build
new file mode 100644
index 000000000..f3e888dd4
--- /dev/null
+++ b/mailnews/extensions/smime/src/moz.build
@@ -0,0 +1,23 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+    'nsCertPicker.cpp',
+    'nsEncryptedSMIMEURIsService.cpp',
+    'nsMsgComposeSecure.cpp',
+    'nsSMimeJSHelper.cpp',
+]
+
+EXTRA_COMPONENTS += [
+    'smime-service.js',
+    'smime-service.manifest',
+]
+
+FINAL_LIBRARY = 'mail'
+
+LOCAL_INCLUDES += [
+    '/mozilla/security/manager/pki',
+    '/mozilla/security/pkix/include'
+]
diff --git a/mailnews/extensions/smime/src/nsCertPicker.cpp b/mailnews/extensions/smime/src/nsCertPicker.cpp
new file mode 100644
index 000000000..183f9605c
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsCertPicker.cpp
@@ -0,0 +1,471 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsCertPicker.h"
+
+#include "MainThreadUtils.h"
+#include "ScopedNSSTypes.h"
+#include "cert.h"
+#include "mozilla/RefPtr.h"
+#include "nsCOMPtr.h"
+#include "nsICertPickDialogs.h"
+#include "nsIDOMWindow.h"
+#include "nsIDialogParamBlock.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIServiceManager.h"
+#include "nsIX509CertValidity.h"
+#include "nsMemory.h"
+#include "nsMsgComposeSecure.h"
+#include "nsNSSCertificate.h"
+#include "nsNSSComponent.h"
+#include "nsNSSDialogHelper.h"
+#include "nsNSSHelper.h"
+#include "nsNSSShutDown.h"
+#include "nsReadableUtils.h"
+#include "nsString.h"
+#include "pkix/pkixtypes.h"
+
+using namespace mozilla;
+
+MOZ_TYPE_SPECIFIC_UNIQUE_PTR_TEMPLATE(UniqueCERTCertNicknames,
+                                      CERTCertNicknames,
+                                      CERT_FreeNicknames)
+
+CERTCertNicknames*
+getNSSCertNicknamesFromCertList(const UniqueCERTCertList& certList)
+{
+  static NS_DEFINE_CID(kNSSComponentCID, NS_NSSCOMPONENT_CID);
+
+  nsresult rv;
+
+  nsCOMPtr<nsINSSComponent> nssComponent(do_GetService(kNSSComponentCID, &rv));
+  if (NS_FAILED(rv))
+    return nullptr;
+
+  nsAutoString expiredString, notYetValidString;
+  nsAutoString expiredStringLeadingSpace, notYetValidStringLeadingSpace;
+
+  nssComponent->GetPIPNSSBundleString("NicknameExpired", expiredString);
+  nssComponent->GetPIPNSSBundleString("NicknameNotYetValid", notYetValidString);
+
+  expiredStringLeadingSpace.Append(' ');
+  expiredStringLeadingSpace.Append(expiredString);
+
+  notYetValidStringLeadingSpace.Append(' ');
+  notYetValidStringLeadingSpace.Append(notYetValidString);
+
+  NS_ConvertUTF16toUTF8 aUtf8ExpiredString(expiredStringLeadingSpace);
+  NS_ConvertUTF16toUTF8 aUtf8NotYetValidString(notYetValidStringLeadingSpace);
+
+  return CERT_NicknameStringsFromCertList(certList.get(),
+                                          const_cast<char*>(aUtf8ExpiredString.get()),
+                                          const_cast<char*>(aUtf8NotYetValidString.get()));
+}
+
+nsresult
+FormatUIStrings(nsIX509Cert* cert, const nsAutoString& nickname,
+                nsAutoString& nickWithSerial, nsAutoString& details)
+{
+  if (!NS_IsMainThread()) {
+    NS_ERROR("nsNSSCertificate::FormatUIStrings called off the main thread");
+    return NS_ERROR_NOT_SAME_THREAD;
+  }
+
+  RefPtr<nsMsgComposeSecure> mcs = new nsMsgComposeSecure;
+  if (!mcs) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsAutoString info;
+  nsAutoString temp1;
+
+  nickWithSerial.Append(nickname);
+
+  if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoIssuedFor", info))) {
+    details.Append(info);
+    details.Append(char16_t(' '));
+    if (NS_SUCCEEDED(cert->GetSubjectName(temp1)) && !temp1.IsEmpty()) {
+      details.Append(temp1);
+    }
+    details.Append(char16_t('\n'));
+  }
+
+  if (NS_SUCCEEDED(cert->GetSerialNumber(temp1)) && !temp1.IsEmpty()) {
+    details.AppendLiteral("  ");
+    if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertDumpSerialNo", info))) {
+      details.Append(info);
+      details.AppendLiteral(": ");
+    }
+    details.Append(temp1);
+
+    nickWithSerial.AppendLiteral(" [");
+    nickWithSerial.Append(temp1);
+    nickWithSerial.Append(char16_t(']'));
+
+    details.Append(char16_t('\n'));
+  }
+
+  nsCOMPtr<nsIX509CertValidity> validity;
+  nsresult rv = cert->GetValidity(getter_AddRefs(validity));
+  if (NS_SUCCEEDED(rv) && validity) {
+    details.AppendLiteral("  ");
+    if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoValid", info))) {
+      details.Append(info);
+    }
+
+    if (NS_SUCCEEDED(validity->GetNotBeforeLocalTime(temp1)) && !temp1.IsEmpty()) {
+      details.Append(char16_t(' '));
+      if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoFrom", info))) {
+        details.Append(info);
+        details.Append(char16_t(' '));
+      }
+      details.Append(temp1);
+    }
+
+    if (NS_SUCCEEDED(validity->GetNotAfterLocalTime(temp1)) && !temp1.IsEmpty()) {
+      details.Append(char16_t(' '));
+      if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoTo", info))) {
+        details.Append(info);
+        details.Append(char16_t(' '));
+      }
+      details.Append(temp1);
+    }
+
+    details.Append(char16_t('\n'));
+  }
+
+  if (NS_SUCCEEDED(cert->GetKeyUsages(temp1)) && !temp1.IsEmpty()) {
+    details.AppendLiteral("  ");
+    if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertDumpKeyUsage", info))) {
+      details.Append(info);
+      details.AppendLiteral(": ");
+    }
+    details.Append(temp1);
+    details.Append(char16_t('\n'));
+  }
+
+  UniqueCERTCertificate nssCert(cert->GetCert());
+  if (!nssCert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsAutoString firstEmail;
+  const char* aWalkAddr;
+  for (aWalkAddr = CERT_GetFirstEmailAddress(nssCert.get())
+        ;
+        aWalkAddr
+        ;
+        aWalkAddr = CERT_GetNextEmailAddress(nssCert.get(), aWalkAddr))
+  {
+    NS_ConvertUTF8toUTF16 email(aWalkAddr);
+    if (email.IsEmpty())
+      continue;
+
+    if (firstEmail.IsEmpty()) {
+      // If the first email address from the subject DN is also present
+      // in the subjectAltName extension, GetEmailAddresses() will return
+      // it twice (as received from NSS). Remember the first address so that
+      // we can filter out duplicates later on.
+      firstEmail = email;
+
+      details.AppendLiteral("  ");
+      if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoEmail", info))) {
+        details.Append(info);
+        details.AppendLiteral(": ");
+      }
+      details.Append(email);
+    }
+    else {
+      // Append current address if it's different from the first one.
+      if (!firstEmail.Equals(email)) {
+        details.AppendLiteral(", ");
+        details.Append(email);
+      }
+    }
+  }
+
+  if (!firstEmail.IsEmpty()) {
+    // We got at least one email address, so we want a newline
+    details.Append(char16_t('\n'));
+  }
+
+  if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoIssuedBy", info))) {
+    details.Append(info);
+    details.Append(char16_t(' '));
+
+    if (NS_SUCCEEDED(cert->GetIssuerName(temp1)) && !temp1.IsEmpty()) {
+      details.Append(temp1);
+    }
+
+    details.Append(char16_t('\n'));
+  }
+
+  if (NS_SUCCEEDED(mcs->GetSMIMEBundleString(u"CertInfoStoredIn", info))) {
+    details.Append(info);
+    details.Append(char16_t(' '));
+
+    if (NS_SUCCEEDED(cert->GetTokenName(temp1)) && !temp1.IsEmpty()) {
+      details.Append(temp1);
+    }
+  }
+
+  // the above produces the following output:
+  //
+  //   Issued to: $subjectName
+  //   Serial number: $serialNumber
+  //   Valid from: $starting_date to $expiration_date
+  //   Certificate Key usage: $usages
+  //   Email: $address(es)
+  //   Issued by: $issuerName
+  //   Stored in: $token
+
+  return rv;
+}
+
+NS_IMPL_ISUPPORTS(nsCertPicker, nsICertPickDialogs, nsIUserCertPicker)
+
+nsCertPicker::nsCertPicker()
+{
+}
+
+nsCertPicker::~nsCertPicker()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return;
+  }
+
+  shutdown(ShutdownCalledFrom::Object);
+}
+
+nsresult
+nsCertPicker::Init()
+{
+  nsresult rv;
+  nsCOMPtr<nsISupports> psm = do_GetService("@mozilla.org/psm;1", &rv);
+  return rv;
+}
+
+NS_IMETHODIMP
+nsCertPicker::PickCertificate(nsIInterfaceRequestor *ctx,
+                              const char16_t **certNickList,
+                              const char16_t **certDetailsList,
+                              uint32_t count,
+                              int32_t *selectedIndex,
+                              bool *canceled)
+{
+  nsresult rv;
+  uint32_t i;
+
+  *canceled = false;
+
+  nsCOMPtr<nsIDialogParamBlock> block =
+           do_CreateInstance(NS_DIALOGPARAMBLOCK_CONTRACTID);
+  if (!block) return NS_ERROR_FAILURE;
+
+  block->SetNumberStrings(1+count*2);
+
+  for (i = 0; i < count; i++) {
+    rv = block->SetString(i, certNickList[i]);
+    if (NS_FAILED(rv)) return rv;
+  }
+
+  for (i = 0; i < count; i++) {
+    rv = block->SetString(i+count, certDetailsList[i]);
+    if (NS_FAILED(rv)) return rv;
+  }
+
+  rv = block->SetInt(0, count);
+  if (NS_FAILED(rv)) return rv;
+
+  rv = block->SetInt(1, *selectedIndex);
+  if (NS_FAILED(rv)) return rv;
+
+  rv = nsNSSDialogHelper::openDialog(nullptr,
+                                     "chrome://messenger/content/certpicker.xul",
+                                     block);
+  if (NS_FAILED(rv)) return rv;
+
+  int32_t status;
+
+  rv = block->GetInt(0, &status);
+  if (NS_FAILED(rv)) return rv;
+
+  *canceled = (status == 0)?true:false;
+  if (!*canceled) {
+    rv = block->GetInt(1, selectedIndex);
+  }
+  return rv;
+}
+
+NS_IMETHODIMP nsCertPicker::PickByUsage(nsIInterfaceRequestor *ctx,
+                                        const char16_t *selectedNickname,
+                                        int32_t certUsage,
+                                        bool allowInvalid,
+                                        bool allowDuplicateNicknames,
+                                        const nsAString &emailAddress,
+                                        bool *canceled,
+                                        nsIX509Cert **_retval)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  int32_t selectedIndex = -1;
+  bool selectionFound = false;
+  char16_t **certNicknameList = nullptr;
+  char16_t **certDetailsList = nullptr;
+  CERTCertListNode* node = nullptr;
+  nsresult rv = NS_OK;
+
+  {
+    // Iterate over all certs. This assures that user is logged in to all hardware tokens.
+    nsCOMPtr<nsIInterfaceRequestor> ctx = new PipUIContext();
+    UniqueCERTCertList allcerts(PK11_ListCerts(PK11CertListUnique, ctx));
+  }
+
+  /* find all user certs that are valid for the specified usage */
+  /* note that we are allowing expired certs in this list */
+  UniqueCERTCertList certList(
+    CERT_FindUserCertsByUsage(CERT_GetDefaultCertDB(),
+                              (SECCertUsage)certUsage,
+                              !allowDuplicateNicknames,
+                              !allowInvalid,
+                              ctx));
+  if (!certList) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  /* if a (non-empty) emailAddress argument is supplied to PickByUsage, */
+  /* remove non-matching certificates from the candidate list */
+
+  if (!emailAddress.IsEmpty()) {
+    node = CERT_LIST_HEAD(certList);
+    while (!CERT_LIST_END(node, certList)) {
+      /* if the cert has at least one e-mail address, check if suitable */
+      if (CERT_GetFirstEmailAddress(node->cert)) {
+        RefPtr<nsNSSCertificate> tempCert(nsNSSCertificate::Create(node->cert));
+        bool match = false;
+        rv = tempCert->ContainsEmailAddress(emailAddress, &match);
+        if (NS_FAILED(rv)) {
+          return rv;
+        }
+        if (!match) {
+          /* doesn't contain the specified address, so remove from the list */
+          CERTCertListNode* freenode = node;
+          node = CERT_LIST_NEXT(node);
+          CERT_RemoveCertListNode(freenode);
+          continue;
+        }
+      }
+      node = CERT_LIST_NEXT(node);
+    }
+  }
+
+  UniqueCERTCertNicknames nicknames(getNSSCertNicknamesFromCertList(certList));
+  if (!nicknames) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  certNicknameList = (char16_t **)moz_xmalloc(sizeof(char16_t *) * nicknames->numnicknames);
+  certDetailsList = (char16_t **)moz_xmalloc(sizeof(char16_t *) * nicknames->numnicknames);
+
+  if (!certNicknameList || !certDetailsList) {
+    free(certNicknameList);
+    free(certDetailsList);
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  int32_t CertsToUse;
+
+  for (CertsToUse = 0, node = CERT_LIST_HEAD(certList.get());
+       !CERT_LIST_END(node, certList.get()) &&
+         CertsToUse < nicknames->numnicknames;
+       node = CERT_LIST_NEXT(node)
+      )
+  {
+    RefPtr<nsNSSCertificate> tempCert(nsNSSCertificate::Create(node->cert));
+
+    if (tempCert) {
+
+      nsAutoString i_nickname(NS_ConvertUTF8toUTF16(nicknames->nicknames[CertsToUse]));
+      nsAutoString nickWithSerial;
+      nsAutoString details;
+
+      if (!selectionFound) {
+        /* for the case when selectedNickname refers to a bare nickname */
+        if (i_nickname == nsDependentString(selectedNickname)) {
+          selectedIndex = CertsToUse;
+          selectionFound = true;
+        }
+      }
+
+      if (NS_SUCCEEDED(FormatUIStrings(tempCert, i_nickname, nickWithSerial,
+                                       details))) {
+        certNicknameList[CertsToUse] = ToNewUnicode(nickWithSerial);
+        certDetailsList[CertsToUse] = ToNewUnicode(details);
+        if (!selectionFound) {
+          /* for the case when selectedNickname refers to nickname + serial */
+          if (nickWithSerial == nsDependentString(selectedNickname)) {
+            selectedIndex = CertsToUse;
+            selectionFound = true;
+          }
+        }
+      }
+      else {
+        certNicknameList[CertsToUse] = nullptr;
+        certDetailsList[CertsToUse] = nullptr;
+      }
+
+      ++CertsToUse;
+    }
+  }
+
+  if (CertsToUse) {
+    nsCOMPtr<nsICertPickDialogs> dialogs;
+    rv = getNSSDialogs(getter_AddRefs(dialogs), NS_GET_IID(nsICertPickDialogs),
+                       NS_CERTPICKDIALOGS_CONTRACTID);
+
+    if (NS_SUCCEEDED(rv)) {
+      // Show the cert picker dialog and get the index of the selected cert.
+      rv = dialogs->PickCertificate(ctx, (const char16_t**)certNicknameList,
+                                    (const char16_t**)certDetailsList,
+                                    CertsToUse, &selectedIndex, canceled);
+    }
+  }
+
+  int32_t i;
+  for (i = 0; i < CertsToUse; ++i) {
+    free(certNicknameList[i]);
+    free(certDetailsList[i]);
+  }
+  free(certNicknameList);
+  free(certDetailsList);
+
+  if (!CertsToUse) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  if (NS_SUCCEEDED(rv) && !*canceled) {
+    for (i = 0, node = CERT_LIST_HEAD(certList);
+         !CERT_LIST_END(node, certList);
+         ++i, node = CERT_LIST_NEXT(node)) {
+
+      if (i == selectedIndex) {
+        RefPtr<nsNSSCertificate> cert = nsNSSCertificate::Create(node->cert);
+        if (!cert) {
+          rv = NS_ERROR_OUT_OF_MEMORY;
+          break;
+        }
+
+        cert.forget(_retval);
+        break;
+      }
+    }
+  }
+
+  return rv;
+}
diff --git a/mailnews/extensions/smime/src/nsCertPicker.h b/mailnews/extensions/smime/src/nsCertPicker.h
new file mode 100644
index 000000000..e5881f14f
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsCertPicker.h
@@ -0,0 +1,36 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsCertPicker_h
+#define nsCertPicker_h
+
+#include "nsICertPickDialogs.h"
+#include "nsIUserCertPicker.h"
+#include "nsNSSShutDown.h"
+
+#define NS_CERT_PICKER_CID \
+  { 0x735959a1, 0xaf01, 0x447e, { 0xb0, 0x2d, 0x56, 0xe9, 0x68, 0xfa, 0x52, 0xb4 } }
+
+class nsCertPicker : public nsICertPickDialogs
+                   , public nsIUserCertPicker
+                   , public nsNSSShutDownObject
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICERTPICKDIALOGS
+  NS_DECL_NSIUSERCERTPICKER
+
+  nsCertPicker();
+
+  // Nothing to actually release.
+  virtual void virtualDestroyNSSReference() override {}
+
+  nsresult Init();
+
+protected:
+  virtual ~nsCertPicker();
+};
+
+#endif // nsCertPicker_h
diff --git a/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.cpp b/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.cpp
new file mode 100644
index 000000000..9276a07a6
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.cpp
@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsEncryptedSMIMEURIsService.h"
+
+NS_IMPL_ISUPPORTS(nsEncryptedSMIMEURIsService, nsIEncryptedSMIMEURIsService)
+
+nsEncryptedSMIMEURIsService::nsEncryptedSMIMEURIsService()
+{
+}
+
+nsEncryptedSMIMEURIsService::~nsEncryptedSMIMEURIsService()
+{
+}
+
+NS_IMETHODIMP nsEncryptedSMIMEURIsService::RememberEncrypted(const nsACString & uri)
+{
+  // Assuming duplicates are allowed.
+  mEncryptedURIs.AppendElement(uri);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsEncryptedSMIMEURIsService::ForgetEncrypted(const nsACString & uri)
+{
+  // Assuming, this will only remove one copy of the string, if the array
+  // contains multiple copies of the same string.
+  mEncryptedURIs.RemoveElement(uri);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsEncryptedSMIMEURIsService::IsEncrypted(const nsACString & uri, bool *_retval)
+{
+  *_retval = mEncryptedURIs.Contains(uri);
+  return NS_OK;
+}
diff --git a/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.h b/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.h
new file mode 100644
index 000000000..429acbf0a
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsEncryptedSMIMEURIsService.h
@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsEncryptedSMIMEURIsService_H_
+#define _nsEncryptedSMIMEURIsService_H_
+
+#include "nsIEncryptedSMIMEURIsSrvc.h"
+#include "nsTArray.h"
+#include "nsStringGlue.h"
+
+class nsEncryptedSMIMEURIsService : public nsIEncryptedSMIMEURIsService
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIENCRYPTEDSMIMEURISSERVICE
+
+  nsEncryptedSMIMEURIsService();
+
+protected:
+  virtual ~nsEncryptedSMIMEURIsService();
+  nsTArray<nsCString> mEncryptedURIs;
+};
+
+#endif
diff --git a/mailnews/extensions/smime/src/nsMsgComposeSecure.cpp b/mailnews/extensions/smime/src/nsMsgComposeSecure.cpp
new file mode 100644
index 000000000..55383c828
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsMsgComposeSecure.cpp
@@ -0,0 +1,1203 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsMsgComposeSecure.h"
+
+#include <algorithm>
+
+#include "ScopedNSSTypes.h"
+#include "cert.h"
+#include "keyhi.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/Services.h"
+#include "mozilla/mailnews/MimeEncoder.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+#include "msgCore.h"
+#include "nsAlgorithm.h"
+#include "nsComponentManagerUtils.h"
+#include "nsICryptoHash.h"
+#include "nsIMimeConverter.h"
+#include "nsIMsgCompFields.h"
+#include "nsIMsgIdentity.h"
+#include "nsIX509CertDB.h"
+#include "nsMemory.h"
+#include "nsMimeTypes.h"
+#include "nsMsgMimeCID.h"
+#include "nsNSSComponent.h"
+#include "nsServiceManagerUtils.h"
+#include "nspr.h"
+#include "pkix/Result.h"
+
+using namespace mozilla::mailnews;
+using namespace mozilla;
+using namespace mozilla::psm;
+
+#define MK_MIME_ERROR_WRITING_FILE -1
+
+#define SMIME_STRBUNDLE_URL "chrome://messenger/locale/am-smime.properties"
+
+// It doesn't make sense to encode the message because the message will be
+// displayed only if the MUA doesn't support MIME.
+// We need to consider what to do in case the server doesn't support 8BITMIME.
+// In short, we can't use non-ASCII characters here.
+static const char crypto_multipart_blurb[] = "This is a cryptographically signed message in MIME format.";
+
+static void mime_crypto_write_base64 (void *closure, const char *buf,
+                                      unsigned long size);
+static nsresult mime_encoder_output_fn(const char *buf, int32_t size,
+                                       void *closure);
+static nsresult mime_nested_encoder_output_fn(const char *buf, int32_t size,
+                                              void *closure);
+static nsresult make_multipart_signed_header_string(bool outer_p,
+                                                    char **header_return,
+                                                    char **boundary_return,
+                                                    int16_t hash_type);
+static char *mime_make_separator(const char *prefix);
+
+
+static void
+GenerateGlobalRandomBytes(unsigned char *buf, int32_t len)
+{
+  static bool      firstTime = true;
+
+  if (firstTime)
+  {
+    // Seed the random-number generator with current time so that
+    // the numbers will be different every time we run.
+    srand( (unsigned)PR_Now() );
+    firstTime = false;
+  }
+
+  for( int32_t i = 0; i < len; i++ )
+    buf[i] = rand() % 10;
+}
+
+char
+*mime_make_separator(const char *prefix)
+{
+  unsigned char rand_buf[13];
+  GenerateGlobalRandomBytes(rand_buf, 12);
+
+  return PR_smprintf("------------%s"
+           "%02X%02X%02X%02X"
+           "%02X%02X%02X%02X"
+           "%02X%02X%02X%02X",
+           prefix,
+           rand_buf[0], rand_buf[1], rand_buf[2], rand_buf[3],
+           rand_buf[4], rand_buf[5], rand_buf[6], rand_buf[7],
+           rand_buf[8], rand_buf[9], rand_buf[10], rand_buf[11]);
+}
+
+// end of copied code which needs fixed....
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// Implementation of nsMsgSMIMEComposeFields
+/////////////////////////////////////////////////////////////////////////////////////////
+
+NS_IMPL_ISUPPORTS(nsMsgSMIMEComposeFields, nsIMsgSMIMECompFields)
+
+nsMsgSMIMEComposeFields::nsMsgSMIMEComposeFields()
+:mSignMessage(false), mAlwaysEncryptMessage(false)
+{
+}
+
+nsMsgSMIMEComposeFields::~nsMsgSMIMEComposeFields()
+{
+}
+
+NS_IMETHODIMP nsMsgSMIMEComposeFields::SetSignMessage(bool value)
+{
+  mSignMessage = value;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgSMIMEComposeFields::GetSignMessage(bool *_retval)
+{
+  *_retval = mSignMessage;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgSMIMEComposeFields::SetRequireEncryptMessage(bool value)
+{
+  mAlwaysEncryptMessage = value;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgSMIMEComposeFields::GetRequireEncryptMessage(bool *_retval)
+{
+  *_retval = mAlwaysEncryptMessage;
+  return NS_OK;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// Implementation of nsMsgComposeSecure
+/////////////////////////////////////////////////////////////////////////////////////////
+
+NS_IMPL_ISUPPORTS(nsMsgComposeSecure, nsIMsgComposeSecure)
+
+nsMsgComposeSecure::nsMsgComposeSecure()
+{
+  /* member initializers and constructor code */
+  mMultipartSignedBoundary  = 0;
+  mBuffer = 0;
+  mBufferedBytes = 0;
+  mHashType = 0;
+}
+
+nsMsgComposeSecure::~nsMsgComposeSecure()
+{
+  /* destructor code */
+  if (mEncryptionContext) {
+    if (mBufferedBytes) {
+      mEncryptionContext->Update(mBuffer, mBufferedBytes);
+      mBufferedBytes = 0;
+    }
+    mEncryptionContext->Finish();
+  }
+
+  delete [] mBuffer;
+
+  PR_FREEIF(mMultipartSignedBoundary);
+}
+
+NS_IMETHODIMP nsMsgComposeSecure::RequiresCryptoEncapsulation(nsIMsgIdentity * aIdentity, nsIMsgCompFields * aCompFields, bool * aRequiresEncryptionWork)
+{
+  NS_ENSURE_ARG_POINTER(aRequiresEncryptionWork);
+
+  *aRequiresEncryptionWork = false;
+
+  bool alwaysEncryptMessages = false;
+  bool signMessage = false;
+  nsresult rv = ExtractEncryptionState(aIdentity, aCompFields, &signMessage, &alwaysEncryptMessages);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (alwaysEncryptMessages || signMessage)
+    *aRequiresEncryptionWork = true;
+
+  return NS_OK;
+}
+
+
+nsresult nsMsgComposeSecure::GetSMIMEBundleString(const char16_t *name,
+                                                  nsString &outString)
+{
+  outString.Truncate();
+
+  NS_ENSURE_ARG_POINTER(name);
+
+  NS_ENSURE_TRUE(InitializeSMIMEBundle(), NS_ERROR_FAILURE);
+
+  return mSMIMEBundle->GetStringFromName(name, getter_Copies(outString));
+}
+
+nsresult
+nsMsgComposeSecure::
+SMIMEBundleFormatStringFromName(const char16_t *name,
+                                const char16_t **params,
+                                uint32_t numParams,
+                                char16_t **outString)
+{
+  NS_ENSURE_ARG_POINTER(name);
+
+  if (!InitializeSMIMEBundle())
+    return NS_ERROR_FAILURE;
+
+  return mSMIMEBundle->FormatStringFromName(name, params,
+                                            numParams, outString);
+}
+
+bool nsMsgComposeSecure::InitializeSMIMEBundle()
+{
+  if (mSMIMEBundle)
+    return true;
+
+  nsCOMPtr<nsIStringBundleService> bundleService =
+    mozilla::services::GetStringBundleService();
+  nsresult rv = bundleService->CreateBundle(SMIME_STRBUNDLE_URL,
+                                            getter_AddRefs(mSMIMEBundle));
+  NS_ENSURE_SUCCESS(rv, false);
+
+  return true;
+}
+
+void nsMsgComposeSecure::SetError(nsIMsgSendReport *sendReport, const char16_t *bundle_string)
+{
+  if (!sendReport || !bundle_string)
+    return;
+
+  if (mErrorAlreadyReported)
+    return;
+
+  mErrorAlreadyReported = true;
+
+  nsString errorString;
+  nsresult res = GetSMIMEBundleString(bundle_string, errorString);
+  if (NS_SUCCEEDED(res) && !errorString.IsEmpty())
+  {
+    sendReport->SetMessage(nsIMsgSendReport::process_Current,
+                           errorString.get(),
+                           true);
+  }
+}
+
+void nsMsgComposeSecure::SetErrorWithParam(nsIMsgSendReport *sendReport, const char16_t *bundle_string, const char *param)
+{
+  if (!sendReport || !bundle_string || !param)
+    return;
+
+  if (mErrorAlreadyReported)
+    return;
+
+  mErrorAlreadyReported = true;
+
+  nsString errorString;
+  nsresult res;
+  const char16_t *params[1];
+
+  NS_ConvertASCIItoUTF16 ucs2(param);
+  params[0]= ucs2.get();
+
+  res = SMIMEBundleFormatStringFromName(bundle_string,
+                                        params,
+                                        1,
+                                        getter_Copies(errorString));
+
+  if (NS_SUCCEEDED(res) && !errorString.IsEmpty())
+  {
+    sendReport->SetMessage(nsIMsgSendReport::process_Current,
+                           errorString.get(),
+                           true);
+  }
+}
+
+nsresult nsMsgComposeSecure::ExtractEncryptionState(nsIMsgIdentity * aIdentity, nsIMsgCompFields * aComposeFields, bool * aSignMessage, bool * aEncrypt)
+{
+  if (!aComposeFields && !aIdentity)
+    return NS_ERROR_FAILURE; // kick out...invalid args....
+
+  NS_ENSURE_ARG_POINTER(aSignMessage);
+  NS_ENSURE_ARG_POINTER(aEncrypt);
+
+  nsCOMPtr<nsISupports> securityInfo;
+  if (aComposeFields)
+    aComposeFields->GetSecurityInfo(getter_AddRefs(securityInfo));
+
+  if (securityInfo) // if we were given security comp fields, use them.....
+  {
+    nsCOMPtr<nsIMsgSMIMECompFields> smimeCompFields = do_QueryInterface(securityInfo);
+    if (smimeCompFields)
+    {
+      smimeCompFields->GetSignMessage(aSignMessage);
+      smimeCompFields->GetRequireEncryptMessage(aEncrypt);
+      return NS_OK;
+    }
+  }
+
+  // get the default info from the identity....
+  int32_t ep = 0;
+  nsresult testrv = aIdentity->GetIntAttribute("encryptionpolicy", &ep);
+  if (NS_FAILED(testrv)) {
+    *aEncrypt = false;
+  }
+  else {
+    *aEncrypt = (ep > 0);
+  }
+
+  testrv = aIdentity->GetBoolAttribute("sign_mail", aSignMessage);
+  if (NS_FAILED(testrv))
+  {
+    *aSignMessage = false;
+  }
+  return NS_OK;
+}
+
+// Select a hash algorithm to sign message
+// based on subject public key type and size.
+static nsresult
+GetSigningHashFunction(nsIX509Cert *aSigningCert, int16_t *hashType)
+{
+  // Get the signing certificate
+  CERTCertificate *scert = nullptr;
+  if (aSigningCert) {
+    scert = aSigningCert->GetCert();
+  }
+  if (!scert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  UniqueSECKEYPublicKey scertPublicKey(CERT_ExtractPublicKey(scert));
+  if (!scertPublicKey) {
+    return mozilla::MapSECStatus(SECFailure);
+  }
+  KeyType subjectPublicKeyType = SECKEY_GetPublicKeyType(scertPublicKey.get());
+
+  // Get the length of the signature in bits.
+  unsigned siglen = SECKEY_SignatureLen(scertPublicKey.get()) * 8;
+  if (!siglen) {
+    return mozilla::MapSECStatus(SECFailure);
+  }
+
+  // Select a hash function for signature generation whose security strength
+  // meets or exceeds the security strength of the public key, using NIST
+  // Special Publication 800-57, Recommendation for Key Management - Part 1:
+  // General (Revision 3), where Table 2 specifies the security strength of
+  // the public key and Table 3 lists acceptable hash functions. (The security
+  // strength of the hash (for digital signatures) is half the length of the
+  // output.)
+  // [SP 800-57 is available at http://csrc.nist.gov/publications/PubsSPs.html.]
+  if (subjectPublicKeyType == rsaKey) {
+    // For RSA, siglen is the same as the length of the modulus.
+
+    // SHA-1 provides equivalent security strength for up to 1024 bits
+    // SHA-256 provides equivalent security strength for up to 3072 bits
+
+    if (siglen > 3072) {
+      *hashType = nsICryptoHash::SHA512;
+    } else if (siglen > 1024) {
+      *hashType = nsICryptoHash::SHA256;
+    } else {
+      *hashType = nsICryptoHash::SHA1;
+    }
+  } else if (subjectPublicKeyType == dsaKey) {
+    // For DSA, siglen is twice the length of the q parameter of the key.
+    // The security strength of the key is half the length (in bits) of
+    // the q parameter of the key.
+
+    // NSS only supports SHA-1, SHA-224, and SHA-256 for DSA signatures.
+    // The S/MIME code does not support SHA-224.
+
+    if (siglen >= 512) { // 512-bit signature = 256-bit q parameter
+      *hashType = nsICryptoHash::SHA256;
+    } else {
+      *hashType = nsICryptoHash::SHA1;
+    }
+  } else if (subjectPublicKeyType == ecKey) {
+    // For ECDSA, siglen is twice the length of the field size. The security
+    // strength of the key is half the length (in bits) of the field size.
+
+    if (siglen >= 1024) { // 1024-bit signature = 512-bit field size
+      *hashType = nsICryptoHash::SHA512;
+    } else if (siglen >= 768) { // 768-bit signature = 384-bit field size
+      *hashType = nsICryptoHash::SHA384;
+    } else if (siglen >= 512) { // 512-bit signature = 256-bit field size
+      *hashType = nsICryptoHash::SHA256;
+    } else {
+      *hashType = nsICryptoHash::SHA1;
+    }
+  } else {
+    // Unknown key type
+    *hashType = nsICryptoHash::SHA256;
+    NS_WARNING("GetSigningHashFunction: Subject public key type unknown.");
+  }
+  return NS_OK;
+}
+
+/* void beginCryptoEncapsulation (in nsOutputFileStream aStream, in boolean aEncrypt, in boolean aSign, in string aRecipeints, in boolean aIsDraft); */
+NS_IMETHODIMP nsMsgComposeSecure::BeginCryptoEncapsulation(nsIOutputStream * aStream,
+                                                           const char * aRecipients,
+                                                           nsIMsgCompFields * aCompFields,
+                                                           nsIMsgIdentity * aIdentity,
+                                                           nsIMsgSendReport *sendReport,
+                                                           bool aIsDraft)
+{
+  mErrorAlreadyReported = false;
+  nsresult rv = NS_OK;
+
+  bool encryptMessages = false;
+  bool signMessage = false;
+  ExtractEncryptionState(aIdentity, aCompFields, &signMessage, &encryptMessages);
+
+  if (!signMessage && !encryptMessages) return NS_ERROR_FAILURE;
+
+  mStream = aStream;
+  mIsDraft = aIsDraft;
+
+  if (encryptMessages && signMessage)
+    mCryptoState = mime_crypto_signed_encrypted;
+  else if (encryptMessages)
+    mCryptoState = mime_crypto_encrypted;
+  else if (signMessage)
+    mCryptoState = mime_crypto_clear_signed;
+  else
+    PR_ASSERT(0);
+
+  aIdentity->GetUnicharAttribute("signing_cert_name", mSigningCertName);
+  aIdentity->GetCharAttribute("signing_cert_dbkey", mSigningCertDBKey);
+  aIdentity->GetUnicharAttribute("encryption_cert_name", mEncryptionCertName);
+  aIdentity->GetCharAttribute("encryption_cert_dbkey", mEncryptionCertDBKey);
+
+  rv = MimeCryptoHackCerts(aRecipients, sendReport, encryptMessages, signMessage, aIdentity);
+  if (NS_FAILED(rv)) {
+    goto FAIL;
+  }
+
+  if (signMessage && mSelfSigningCert) {
+    rv = GetSigningHashFunction(mSelfSigningCert, &mHashType);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  switch (mCryptoState)
+  {
+  case mime_crypto_clear_signed:
+    rv = MimeInitMultipartSigned(true, sendReport);
+    break;
+  case mime_crypto_opaque_signed:
+    PR_ASSERT(0);    /* #### no api for this yet */
+    rv = NS_ERROR_NOT_IMPLEMENTED;
+    break;
+  case mime_crypto_signed_encrypted:
+    rv = MimeInitEncryption(true, sendReport);
+    break;
+  case mime_crypto_encrypted:
+    rv = MimeInitEncryption(false, sendReport);
+    break;
+  case mime_crypto_none:
+    /* This can happen if mime_crypto_hack_certs() decided to turn off
+     encryption (by asking the user.) */
+    // XXX 1 is not a valid nsresult
+    rv = static_cast<nsresult>(1);
+    break;
+  default:
+    PR_ASSERT(0);
+    break;
+  }
+
+FAIL:
+  return rv;
+}
+
+/* void finishCryptoEncapsulation (in boolean aAbort); */
+NS_IMETHODIMP nsMsgComposeSecure::FinishCryptoEncapsulation(bool aAbort, nsIMsgSendReport *sendReport)
+{
+  nsresult rv = NS_OK;
+
+  if (!aAbort) {
+    switch (mCryptoState) {
+    case mime_crypto_clear_signed:
+      rv = MimeFinishMultipartSigned (true, sendReport);
+      break;
+    case mime_crypto_opaque_signed:
+      PR_ASSERT(0);    /* #### no api for this yet */
+      rv = NS_ERROR_FAILURE;
+      break;
+    case mime_crypto_signed_encrypted:
+      rv = MimeFinishEncryption (true, sendReport);
+      break;
+    case mime_crypto_encrypted:
+      rv = MimeFinishEncryption (false, sendReport);
+      break;
+    default:
+      PR_ASSERT(0);
+      rv = NS_ERROR_FAILURE;
+      break;
+    }
+  }
+  return rv;
+}
+
+nsresult nsMsgComposeSecure::MimeInitMultipartSigned(bool aOuter, nsIMsgSendReport *sendReport)
+{
+  /* First, construct and write out the multipart/signed MIME header data.
+   */
+  nsresult rv = NS_OK;
+  char *header = 0;
+  uint32_t L;
+
+  rv = make_multipart_signed_header_string(aOuter, &header,
+    &mMultipartSignedBoundary, mHashType);
+
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  L = strlen(header);
+
+  if (aOuter){
+    /* If this is the outer block, write it to the file. */
+    uint32_t n;
+    rv = mStream->Write(header, L, &n);
+    if (NS_FAILED(rv) || n < L) {
+      // XXX This is -1, not an nsresult
+      rv = static_cast<nsresult>(MK_MIME_ERROR_WRITING_FILE);
+    }
+  } else {
+    /* If this is an inner block, feed it through the crypto stream. */
+    rv = MimeCryptoWriteBlock (header, L);
+  }
+
+  PR_Free(header);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  /* Now initialize the crypto library, so that we can compute a hash
+   on the object which we are signing.
+   */
+
+  PR_SetError(0,0);
+  mDataHash = do_CreateInstance("@mozilla.org/security/hash;1", &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = mDataHash->Init(mHashType);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  PR_SetError(0,0);
+  return rv;
+}
+
+nsresult nsMsgComposeSecure::MimeInitEncryption(bool aSign, nsIMsgSendReport *sendReport)
+{
+  nsresult rv;
+  nsCOMPtr<nsIStringBundleService> bundleSvc =
+    mozilla::services::GetStringBundleService();
+  NS_ENSURE_TRUE(bundleSvc, NS_ERROR_UNEXPECTED);
+
+  nsCOMPtr<nsIStringBundle> sMIMEBundle;
+  nsString mime_smime_enc_content_desc;
+
+  bundleSvc->CreateBundle(SMIME_STRBUNDLE_URL, getter_AddRefs(sMIMEBundle));
+
+  if (!sMIMEBundle)
+    return NS_ERROR_FAILURE;
+
+  sMIMEBundle->GetStringFromName(u"mime_smimeEncryptedContentDesc",
+                                 getter_Copies(mime_smime_enc_content_desc));
+  NS_ConvertUTF16toUTF8 enc_content_desc_utf8(mime_smime_enc_content_desc);
+
+  nsCOMPtr<nsIMimeConverter> mimeConverter =
+     do_GetService(NS_MIME_CONVERTER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+  nsCString encodedContentDescription;
+  mimeConverter->EncodeMimePartIIStr_UTF8(enc_content_desc_utf8, false, "UTF-8",
+      sizeof("Content-Description: "),
+      nsIMimeConverter::MIME_ENCODED_WORD_SIZE,
+      encodedContentDescription);
+
+  /* First, construct and write out the opaque-crypto-blob MIME header data.
+   */
+
+  char *s =
+  PR_smprintf("Content-Type: " APPLICATION_PKCS7_MIME
+          "; name=\"smime.p7m\"; smime-type=enveloped-data" CRLF
+        "Content-Transfer-Encoding: " ENCODING_BASE64 CRLF
+        "Content-Disposition: attachment"
+          "; filename=\"smime.p7m\"" CRLF
+        "Content-Description: %s" CRLF
+        CRLF,
+        encodedContentDescription.get());
+
+  uint32_t L;
+  if (!s) return NS_ERROR_OUT_OF_MEMORY;
+  L = strlen(s);
+  uint32_t n;
+  rv = mStream->Write(s, L, &n);
+  if (NS_FAILED(rv) || n < L) {
+    return NS_ERROR_FAILURE;
+  }
+  PR_Free(s);
+  s = 0;
+
+  /* Now initialize the crypto library, so that we can filter the object
+   to be encrypted through it.
+   */
+
+  if (!mIsDraft) {
+    uint32_t numCerts;
+    mCerts->GetLength(&numCerts);
+    PR_ASSERT(numCerts > 0);
+    if (numCerts == 0) return NS_ERROR_FAILURE;
+  }
+
+  // Initialize the base64 encoder
+  MOZ_ASSERT(!mCryptoEncoder, "Shouldn't have an encoder already");
+  mCryptoEncoder = MimeEncoder::GetBase64Encoder(mime_encoder_output_fn,
+                          this);
+
+  /* Initialize the encrypter (and add the sender's cert.) */
+  PR_ASSERT(mSelfEncryptionCert);
+  PR_SetError(0,0);
+  mEncryptionCinfo = do_CreateInstance(NS_CMSMESSAGE_CONTRACTID, &rv);
+  if (NS_FAILED(rv)) return rv;
+  rv = mEncryptionCinfo->CreateEncrypted(mCerts);
+  if (NS_FAILED(rv)) {
+    SetError(sendReport, u"ErrorEncryptMail");
+    goto FAIL;
+  }
+
+  mEncryptionContext = do_CreateInstance(NS_CMSENCODER_CONTRACTID, &rv);
+  if (NS_FAILED(rv)) return rv;
+
+  if (!mBuffer) {
+    mBuffer = new char[eBufferSize];
+    if (!mBuffer)
+      return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  mBufferedBytes = 0;
+
+  rv = mEncryptionContext->Start(mEncryptionCinfo, mime_crypto_write_base64, mCryptoEncoder);
+  if (NS_FAILED(rv)) {
+    SetError(sendReport, u"ErrorEncryptMail");
+    goto FAIL;
+  }
+
+  /* If we're signing, tack a multipart/signed header onto the front of
+   the data to be encrypted, and initialize the sign-hashing code too.
+   */
+  if (aSign) {
+    rv = MimeInitMultipartSigned(false, sendReport);
+    if (NS_FAILED(rv)) goto FAIL;
+  }
+
+ FAIL:
+  return rv;
+}
+
+nsresult nsMsgComposeSecure::MimeFinishMultipartSigned (bool aOuter, nsIMsgSendReport *sendReport)
+{
+  int status;
+  nsresult rv;
+  nsCOMPtr<nsICMSMessage> cinfo = do_CreateInstance(NS_CMSMESSAGE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsICMSEncoder> encoder = do_CreateInstance(NS_CMSENCODER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  char * header = nullptr;
+  nsCOMPtr<nsIStringBundleService> bundleSvc =
+    mozilla::services::GetStringBundleService();
+  NS_ENSURE_TRUE(bundleSvc, NS_ERROR_UNEXPECTED);
+
+  nsCOMPtr<nsIStringBundle> sMIMEBundle;
+  nsString mime_smime_sig_content_desc;
+
+  bundleSvc->CreateBundle(SMIME_STRBUNDLE_URL, getter_AddRefs(sMIMEBundle));
+
+  if (!sMIMEBundle)
+    return NS_ERROR_FAILURE;
+
+  sMIMEBundle->GetStringFromName(u"mime_smimeSignatureContentDesc",
+                                 getter_Copies(mime_smime_sig_content_desc));
+
+  NS_ConvertUTF16toUTF8 sig_content_desc_utf8(mime_smime_sig_content_desc);
+
+  /* Compute the hash...
+   */
+
+  nsAutoCString hashString;
+  mDataHash->Finish(false, hashString);
+
+  mDataHash = nullptr;
+
+  status = PR_GetError();
+  if (status < 0) goto FAIL;
+
+  /* Write out the headers for the signature.
+   */
+  uint32_t L;
+  header =
+    PR_smprintf(CRLF
+          "--%s" CRLF
+          "Content-Type: " APPLICATION_PKCS7_SIGNATURE
+            "; name=\"smime.p7s\"" CRLF
+          "Content-Transfer-Encoding: " ENCODING_BASE64 CRLF
+          "Content-Disposition: attachment; "
+            "filename=\"smime.p7s\"" CRLF
+          "Content-Description: %s" CRLF
+          CRLF,
+          mMultipartSignedBoundary,
+          sig_content_desc_utf8.get());
+
+  if (!header) {
+    rv = NS_ERROR_OUT_OF_MEMORY;
+    goto FAIL;
+  }
+
+  L = strlen(header);
+  if (aOuter) {
+    /* If this is the outer block, write it to the file. */
+    uint32_t n;
+    rv = mStream->Write(header, L, &n);
+    if (NS_FAILED(rv) || n < L) {
+      // XXX This is -1, not an nsresult
+      rv = static_cast<nsresult>(MK_MIME_ERROR_WRITING_FILE);
+    }
+  } else {
+    /* If this is an inner block, feed it through the crypto stream. */
+    rv = MimeCryptoWriteBlock (header, L);
+  }
+
+  PR_Free(header);
+
+  /* Create the signature...
+   */
+
+  NS_ASSERTION(mHashType, "Hash function for signature has not been set.");
+
+  PR_ASSERT (mSelfSigningCert);
+  PR_SetError(0,0);
+
+  rv = cinfo->CreateSigned(mSelfSigningCert, mSelfEncryptionCert,
+    (unsigned char*)hashString.get(), hashString.Length(), mHashType);
+  if (NS_FAILED(rv))  {
+    SetError(sendReport, u"ErrorCanNotSignMail");
+    goto FAIL;
+  }
+
+  // Initialize the base64 encoder for the signature data.
+  MOZ_ASSERT(!mSigEncoder, "Shouldn't already have a mSigEncoder");
+  mSigEncoder = MimeEncoder::GetBase64Encoder(
+    (aOuter ? mime_encoder_output_fn : mime_nested_encoder_output_fn), this);
+
+  /* Write out the signature.
+   */
+  PR_SetError(0,0);
+  rv = encoder->Start(cinfo, mime_crypto_write_base64, mSigEncoder);
+  if (NS_FAILED(rv)) {
+    SetError(sendReport, u"ErrorCanNotSignMail");
+    goto FAIL;
+  }
+
+  // We're not passing in any data, so no update needed.
+  rv = encoder->Finish();
+  if (NS_FAILED(rv)) {
+    SetError(sendReport, u"ErrorCanNotSignMail");
+    goto FAIL;
+  }
+
+  // Shut down the sig's base64 encoder.
+  rv = mSigEncoder->Flush();
+  mSigEncoder = nullptr;
+  if (NS_FAILED(rv)) {
+    goto FAIL;
+  }
+
+  /* Now write out the terminating boundary.
+   */
+  {
+  uint32_t L;
+  char *header = PR_smprintf(CRLF "--%s--" CRLF,
+                 mMultipartSignedBoundary);
+  PR_Free(mMultipartSignedBoundary);
+  mMultipartSignedBoundary = 0;
+
+  if (!header) {
+    rv = NS_ERROR_OUT_OF_MEMORY;
+    goto FAIL;
+  }
+  L = strlen(header);
+  if (aOuter) {
+    /* If this is the outer block, write it to the file. */
+    uint32_t n;
+    rv = mStream->Write(header, L, &n);
+    if (NS_FAILED(rv) || n < L)
+      // XXX This is -1, not an nsresult
+      rv = static_cast<nsresult>(MK_MIME_ERROR_WRITING_FILE);
+  } else {
+    /* If this is an inner block, feed it through the crypto stream. */
+    rv = MimeCryptoWriteBlock (header, L);
+  }
+  }
+
+FAIL:
+  return rv;
+}
+
+
+/* Helper function for mime_finish_crypto_encapsulation() to close off
+   an opaque crypto object (for encrypted or signed-and-encrypted messages.)
+ */
+nsresult nsMsgComposeSecure::MimeFinishEncryption (bool aSign, nsIMsgSendReport *sendReport)
+{
+  nsresult rv;
+
+  /* If this object is both encrypted and signed, close off the
+   signature first (since it's inside.) */
+  if (aSign) {
+    rv = MimeFinishMultipartSigned (false, sendReport);
+    if (NS_FAILED(rv)) {
+      goto FAIL;
+    }
+  }
+
+  /* Close off the opaque encrypted blob.
+   */
+  PR_ASSERT(mEncryptionContext);
+
+  if (mBufferedBytes) {
+    rv = mEncryptionContext->Update(mBuffer, mBufferedBytes);
+    mBufferedBytes = 0;
+    if (NS_FAILED(rv)) {
+      PR_ASSERT(PR_GetError() < 0);
+      goto FAIL;
+    }
+  }
+
+  rv = mEncryptionContext->Finish();
+  if (NS_FAILED(rv)) {
+    SetError(sendReport, u"ErrorEncryptMail");
+    goto FAIL;
+  }
+
+  mEncryptionContext = nullptr;
+
+  PR_ASSERT(mEncryptionCinfo);
+  if (!mEncryptionCinfo) {
+    rv = NS_ERROR_FAILURE;
+  }
+  if (mEncryptionCinfo) {
+    mEncryptionCinfo = nullptr;
+  }
+
+  // Shut down the base64 encoder.
+  mCryptoEncoder->Flush();
+  mCryptoEncoder = nullptr;
+
+  uint32_t n;
+  rv = mStream->Write(CRLF, 2, &n);
+  if (NS_FAILED(rv) || n < 2)
+    rv = NS_ERROR_FAILURE;
+
+ FAIL:
+  return rv;
+}
+
+/* Used to figure out what certs should be used when encrypting this message.
+ */
+nsresult nsMsgComposeSecure::MimeCryptoHackCerts(const char *aRecipients,
+                                                 nsIMsgSendReport *sendReport,
+                                                 bool aEncrypt,
+                                                 bool aSign,
+                                                 nsIMsgIdentity *aIdentity)
+{
+  nsCOMPtr<nsIX509CertDB> certdb = do_GetService(NS_X509CERTDB_CONTRACTID);
+  nsresult res;
+
+  mCerts = do_CreateInstance(NS_ARRAY_CONTRACTID, &res);
+  if (NS_FAILED(res)) {
+    return res;
+  }
+
+  PR_ASSERT(aEncrypt || aSign);
+
+  /*
+   Signing and encryption certs use the following (per-identity) preferences:
+   - "signing_cert_name"/"encryption_cert_name": a string specifying the
+     nickname of the certificate
+   - "signing_cert_dbkey"/"encryption_cert_dbkey": a Base64 encoded blob
+     specifying an nsIX509Cert dbKey (represents serial number
+     and issuer DN, which is considered to be unique for X.509 certificates)
+
+   When retrieving the prefs, we try (in this order):
+   1) *_cert_dbkey, if available
+   2) *_cert_name (for maintaining backwards compatibility with preference
+      attributes written by earlier versions)
+  */
+
+  RefPtr<SharedCertVerifier> certVerifier(GetDefaultCertVerifier());
+  NS_ENSURE_TRUE(certVerifier, NS_ERROR_UNEXPECTED);
+
+  UniqueCERTCertList builtChain;
+  if (!mEncryptionCertDBKey.IsEmpty()) {
+    certdb->FindCertByDBKey(mEncryptionCertDBKey.get(),
+                            getter_AddRefs(mSelfEncryptionCert));
+    if (mSelfEncryptionCert &&
+        (certVerifier->VerifyCert(mSelfEncryptionCert->GetCert(),
+                                  certificateUsageEmailRecipient,
+                                  mozilla::pkix::Now(),
+                                  nullptr, nullptr,
+                                  builtChain) != mozilla::pkix::Success)) {
+      // not suitable for encryption, so unset cert and clear pref
+      mSelfEncryptionCert = nullptr;
+      mEncryptionCertDBKey.Truncate();
+      aIdentity->SetCharAttribute("encryption_cert_dbkey",
+                                   mEncryptionCertDBKey);
+    }
+  }
+  if (!mSelfEncryptionCert) {
+    certdb->FindEmailEncryptionCert(mEncryptionCertName,
+                                    getter_AddRefs(mSelfEncryptionCert));
+  }
+
+  // same procedure for the signing cert
+  if (!mSigningCertDBKey.IsEmpty()) {
+    certdb->FindCertByDBKey(mSigningCertDBKey.get(),
+                            getter_AddRefs(mSelfSigningCert));
+    if (mSelfSigningCert &&
+        (certVerifier->VerifyCert(mSelfSigningCert->GetCert(),
+                                  certificateUsageEmailSigner,
+                                  mozilla::pkix::Now(),
+                                  nullptr, nullptr,
+                                  builtChain) != mozilla::pkix::Success)) {
+      // not suitable for signing, so unset cert and clear pref
+      mSelfSigningCert = nullptr;
+      mSigningCertDBKey.Truncate();
+      aIdentity->SetCharAttribute("signing_cert_dbkey", mSigningCertDBKey);
+    }
+  }
+  if (!mSelfSigningCert) {
+    certdb->FindEmailSigningCert(mSigningCertName,
+                                 getter_AddRefs(mSelfSigningCert));
+  }
+
+  // must have both the signing and encryption certs to sign
+  if (!mSelfSigningCert && aSign) {
+    SetError(sendReport, u"NoSenderSigningCert");
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!mSelfEncryptionCert && aEncrypt) {
+    SetError(sendReport, u"NoSenderEncryptionCert");
+    return NS_ERROR_FAILURE;
+  }
+
+
+  if (aEncrypt && mSelfEncryptionCert) {
+    // Make sure self's configured cert is prepared for being used
+    // as an email recipient cert.
+    UniqueCERTCertificate nsscert(mSelfEncryptionCert->GetCert());
+    if (!nsscert) {
+      return NS_ERROR_FAILURE;
+    }
+    // XXX: This does not respect the nsNSSShutDownObject protocol.
+    if (CERT_SaveSMimeProfile(nsscert.get(), nullptr, nullptr) != SECSuccess) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  /* If the message is to be encrypted, then get the recipient certs */
+  if (aEncrypt) {
+    nsTArray<nsCString> mailboxes;
+    ExtractEmails(EncodedHeader(nsDependentCString(aRecipients)),
+      UTF16ArrayAdapter<>(mailboxes));
+    uint32_t count = mailboxes.Length();
+
+    bool already_added_self_cert = false;
+
+    for (uint32_t i = 0; i < count; i++) {
+      nsCString mailbox_lowercase;
+      ToLowerCase(mailboxes[i], mailbox_lowercase);
+      nsCOMPtr<nsIX509Cert> cert;
+      res = certdb->FindCertByEmailAddress(mailbox_lowercase.get(),
+                                           getter_AddRefs(cert));
+      if (NS_FAILED(res)) {
+        // Failure to find a valid encryption cert is fatal.
+        // Here I assume that mailbox is ascii rather than utf8.
+        SetErrorWithParam(sendReport,
+                          u"MissingRecipientEncryptionCert",
+                          mailboxes[i].get());
+
+        return res;
+      }
+
+    /* #### see if recipient requests `signedData'.
+     if (...) no_clearsigning_p = true;
+     (This is the only reason we even bother looking up the certs
+     of the recipients if we're sending a signed-but-not-encrypted
+     message.)
+     */
+
+      bool isSame;
+      if (NS_SUCCEEDED(cert->Equals(mSelfEncryptionCert, &isSame))
+          && isSame) {
+        already_added_self_cert = true;
+      }
+
+      mCerts->AppendElement(cert, false);
+    }
+
+    if (!already_added_self_cert) {
+      mCerts->AppendElement(mSelfEncryptionCert, false);
+    }
+  }
+  return res;
+}
+
+NS_IMETHODIMP nsMsgComposeSecure::MimeCryptoWriteBlock (const char *buf, int32_t size)
+{
+  int status = 0;
+  nsresult rv;
+
+  /* If this is a From line, mangle it before signing it.  You just know
+   that something somewhere is going to mangle it later, and that's
+   going to cause the signature check to fail.
+
+   (This assumes that, in the cases where From-mangling must happen,
+   this function is called a line at a time.  That happens to be the
+   case.)
+  */
+  if (size >= 5 && buf[0] == 'F' && !strncmp(buf, "From ", 5)) {
+    char mangle[] = ">";
+    nsresult res = MimeCryptoWriteBlock (mangle, 1);
+    if (NS_FAILED(res))
+      return res;
+    // This value will actually be cast back to an nsresult before use, so this
+    // cast is reasonable under the circumstances.
+    status = static_cast<int>(res);
+  }
+
+  /* If we're signing, or signing-and-encrypting, feed this data into
+   the computation of the hash. */
+  if (mDataHash) {
+    PR_SetError(0,0);
+    mDataHash->Update((const uint8_t*) buf, size);
+	  status = PR_GetError();
+	  if (status < 0) goto FAIL;
+	}
+
+  PR_SetError(0,0);
+  if (mEncryptionContext) {
+	  /* If we're encrypting, or signing-and-encrypting, write this data
+		 by filtering it through the crypto library. */
+
+    /* We want to create equally sized encryption strings */
+    const char *inputBytesIterator = buf;
+    uint32_t inputBytesLeft = size;
+
+    while (inputBytesLeft) {
+      const uint32_t spaceLeftInBuffer = eBufferSize - mBufferedBytes;
+      const uint32_t bytesToAppend = std::min(inputBytesLeft, spaceLeftInBuffer);
+
+      memcpy(mBuffer+mBufferedBytes, inputBytesIterator, bytesToAppend);
+      mBufferedBytes += bytesToAppend;
+
+      inputBytesIterator += bytesToAppend;
+      inputBytesLeft -= bytesToAppend;
+
+      if (eBufferSize == mBufferedBytes) {
+        rv = mEncryptionContext->Update(mBuffer, mBufferedBytes);
+        mBufferedBytes = 0;
+        if (NS_FAILED(rv)) {
+          status = PR_GetError();
+          PR_ASSERT(status < 0);
+          if (status >= 0) status = -1;
+          goto FAIL;
+        }
+      }
+    }
+  } else {
+    /* If we're not encrypting (presumably just signing) then write this
+       data directly to the file. */
+
+    uint32_t n;
+    rv = mStream->Write(buf, size, &n);
+    if (NS_FAILED(rv) || n < (uint32_t)size) {
+      // XXX MK_MIME_ERROR_WRITING_FILE is -1, which is not a valid nsresult
+      return static_cast<nsresult>(MK_MIME_ERROR_WRITING_FILE);
+    }
+  }
+ FAIL:
+  // XXX status sometimes has invalid nsresults like -1 or PR_GetError()
+  // assigned to it
+  return static_cast<nsresult>(status);
+}
+
+/* Returns a string consisting of a Content-Type header, and a boundary
+   string, suitable for moving from the header block, down into the body
+   of a multipart object.  The boundary itself is also returned (so that
+   the caller knows what to write to close it off.)
+ */
+static nsresult
+make_multipart_signed_header_string(bool outer_p,
+                                    char **header_return,
+                                    char **boundary_return,
+                                    int16_t hash_type)
+{
+  const char *hashStr;
+  *header_return = 0;
+  *boundary_return = mime_make_separator("ms");
+
+  if (!*boundary_return)
+	return NS_ERROR_OUT_OF_MEMORY;
+
+  switch (hash_type) {
+  case nsICryptoHash::SHA1:
+    hashStr = PARAM_MICALG_SHA1;
+    break;
+  case nsICryptoHash::SHA256:
+    hashStr = PARAM_MICALG_SHA256;
+    break;
+  case nsICryptoHash::SHA384:
+    hashStr = PARAM_MICALG_SHA384;
+    break;
+  case nsICryptoHash::SHA512:
+    hashStr = PARAM_MICALG_SHA512;
+    break;
+  default:
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  *header_return = PR_smprintf(
+        "Content-Type: " MULTIPART_SIGNED "; "
+        "protocol=\"" APPLICATION_PKCS7_SIGNATURE "\"; "
+				"micalg=%s; "
+				"boundary=\"%s\"" CRLF
+				CRLF
+				"%s%s"
+				"--%s" CRLF,
+				hashStr,
+				*boundary_return,
+				(outer_p ? crypto_multipart_blurb : ""),
+				(outer_p ? CRLF CRLF : ""),
+				*boundary_return);
+
+  if (!*header_return) {
+	  PR_Free(*boundary_return);
+	  *boundary_return = 0;
+	  return NS_ERROR_OUT_OF_MEMORY;
+	}
+
+  return NS_OK;
+}
+
+/* Used as the output function of a SEC_PKCS7EncoderContext -- we feed
+   plaintext into the crypto engine, and it calls this function with encrypted
+   data; then this function writes a base64-encoded representation of that
+   data to the file (by filtering it through the given MimeEncoder object.)
+
+   Also used as the output function of SEC_PKCS7Encode() -- but in that case,
+   it's used to write the encoded representation of the signature.  The only
+   difference is which MimeEncoder object is used.
+ */
+static void
+mime_crypto_write_base64 (void *closure, const char *buf, unsigned long size)
+{
+  MimeEncoder *encoder = (MimeEncoder *) closure;
+  nsresult rv = encoder->Write(buf, size);
+  PR_SetError(NS_FAILED(rv) ? static_cast<uint32_t>(rv) : 0, 0);
+}
+
+
+/* Used as the output function of MimeEncoder -- when we have generated
+   the signature for a multipart/signed object, this is used to write the
+   base64-encoded representation of the signature to the file.
+ */
+// TODO: size should probably be converted to uint32_t
+nsresult mime_encoder_output_fn(const char *buf, int32_t size, void *closure)
+{
+  nsMsgComposeSecure *state = (nsMsgComposeSecure *) closure;
+  nsCOMPtr<nsIOutputStream> stream;
+  state->GetOutputStream(getter_AddRefs(stream));
+  uint32_t n;
+  nsresult rv = stream->Write((char *) buf, size, &n);
+  if (NS_FAILED(rv) || n < (uint32_t)size)
+    return NS_ERROR_FAILURE;
+  else
+    return NS_OK;
+}
+
+/* Like mime_encoder_output_fn, except this is used for the case where we
+   are both signing and encrypting -- the base64-encoded output of the
+   signature should be fed into the crypto engine, rather than being written
+   directly to the file.
+ */
+static nsresult
+mime_nested_encoder_output_fn (const char *buf, int32_t size, void *closure)
+{
+  nsMsgComposeSecure *state = (nsMsgComposeSecure *) closure;
+
+  // Copy to new null-terminated string so JS glue doesn't crash when
+  // MimeCryptoWriteBlock() is implemented in JS.
+  nsCString bufWithNull;
+  bufWithNull.Assign(buf, size);
+  return state->MimeCryptoWriteBlock(bufWithNull.get(), size);
+}
diff --git a/mailnews/extensions/smime/src/nsMsgComposeSecure.h b/mailnews/extensions/smime/src/nsMsgComposeSecure.h
new file mode 100644
index 000000000..0f3b9ac60
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsMsgComposeSecure.h
@@ -0,0 +1,106 @@
+/* -*- Mode: idl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef _nsMsgComposeSecure_H_
+#define _nsMsgComposeSecure_H_
+
+#include "nsIMsgComposeSecure.h"
+#include "nsIMsgSMIMECompFields.h"
+#include "nsCOMPtr.h"
+#include "nsICMSEncoder.h"
+#include "nsIX509Cert.h"
+#include "nsIStringBundle.h"
+#include "nsICryptoHash.h"
+#include "nsICMSMessage.h"
+#include "nsIMutableArray.h"
+#include "nsStringGlue.h"
+#include "nsIOutputStream.h"
+#include "nsAutoPtr.h"
+
+class nsIMsgCompFields;
+namespace mozilla {
+namespace mailnews {
+class MimeEncoder;
+}
+}
+
+class nsMsgSMIMEComposeFields : public nsIMsgSMIMECompFields
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMSGSMIMECOMPFIELDS
+
+  nsMsgSMIMEComposeFields();
+
+private:
+  virtual ~nsMsgSMIMEComposeFields();
+  bool mSignMessage;
+  bool mAlwaysEncryptMessage;
+};
+
+typedef enum {
+  mime_crypto_none,				/* normal unencapsulated MIME message */
+  mime_crypto_clear_signed,		/* multipart/signed encapsulation */
+  mime_crypto_opaque_signed,	/* application/x-pkcs7-mime (signedData) */
+  mime_crypto_encrypted,		/* application/x-pkcs7-mime */
+  mime_crypto_signed_encrypted	/* application/x-pkcs7-mime */
+} mimeDeliveryCryptoState;
+
+class nsMsgComposeSecure : public nsIMsgComposeSecure
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMSGCOMPOSESECURE
+
+  nsMsgComposeSecure();
+
+  void GetOutputStream(nsIOutputStream **stream) { NS_IF_ADDREF(*stream = mStream);}
+  nsresult GetSMIMEBundleString(const char16_t *name, nsString &outString);
+
+private:
+  virtual ~nsMsgComposeSecure();
+  typedef mozilla::mailnews::MimeEncoder MimeEncoder;
+  nsresult MimeInitMultipartSigned(bool aOuter, nsIMsgSendReport *sendReport);
+  nsresult MimeInitEncryption(bool aSign, nsIMsgSendReport *sendReport);
+  nsresult MimeFinishMultipartSigned (bool aOuter, nsIMsgSendReport *sendReport);
+  nsresult MimeFinishEncryption (bool aSign, nsIMsgSendReport *sendReport);
+  nsresult MimeCryptoHackCerts(const char *aRecipients, nsIMsgSendReport *sendReport, bool aEncrypt, bool aSign, nsIMsgIdentity *aIdentity);
+  bool InitializeSMIMEBundle();
+  nsresult SMIMEBundleFormatStringFromName(const char16_t *name,
+					   const char16_t **params,
+					   uint32_t numParams,
+					   char16_t **outString);
+  nsresult ExtractEncryptionState(nsIMsgIdentity * aIdentity, nsIMsgCompFields * aComposeFields, bool * aSignMessage, bool * aEncrypt);
+
+  mimeDeliveryCryptoState mCryptoState;
+  nsCOMPtr<nsIOutputStream> mStream;
+  int16_t mHashType;
+  nsCOMPtr<nsICryptoHash> mDataHash;
+  nsAutoPtr<MimeEncoder> mSigEncoder;
+  char *mMultipartSignedBoundary;
+  nsString mSigningCertName;
+  nsAutoCString mSigningCertDBKey;
+  nsCOMPtr<nsIX509Cert> mSelfSigningCert;
+  nsString mEncryptionCertName;
+  nsAutoCString mEncryptionCertDBKey;
+  nsCOMPtr<nsIX509Cert> mSelfEncryptionCert;
+  nsCOMPtr<nsIMutableArray> mCerts;
+  nsCOMPtr<nsICMSMessage> mEncryptionCinfo;
+  nsCOMPtr<nsICMSEncoder> mEncryptionContext;
+  nsCOMPtr<nsIStringBundle> mSMIMEBundle;
+
+  nsAutoPtr<MimeEncoder> mCryptoEncoder;
+  bool mIsDraft;
+
+  enum {eBufferSize = 8192};
+  char *mBuffer;
+  uint32_t mBufferedBytes;
+
+  bool mErrorAlreadyReported;
+  void SetError(nsIMsgSendReport *sendReport, const char16_t *bundle_string);
+  void SetErrorWithParam(nsIMsgSendReport *sendReport, const char16_t *bundle_string, const char *param);
+};
+
+#endif
diff --git a/mailnews/extensions/smime/src/nsMsgSMIMECID.h b/mailnews/extensions/smime/src/nsMsgSMIMECID.h
new file mode 100644
index 000000000..0fbf2d1bf
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsMsgSMIMECID.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsMsgSMIMECID_h__
+#define nsMsgSMIMECID_h__
+
+#include "nsISupports.h"
+#include "nsIFactory.h"
+#include "nsIComponentManager.h"
+
+#define NS_MSGSMIMECOMPFIELDS_CONTRACTID \
+  "@mozilla.org/messenger-smime/composefields;1"
+
+#define NS_MSGSMIMECOMPFIELDS_CID						     \
+{ /* 122C919C-96B7-49a0-BBC8-0ABC67EEFFE0 */     \
+ 0x122c919c, 0x96b7, 0x49a0,                     \
+ { 0xbb, 0xc8, 0xa, 0xbc, 0x67, 0xee, 0xff, 0xe0 }}
+
+#define NS_MSGCOMPOSESECURE_CID						       \
+{ /* dd753201-9a23-4e08-957f-b3616bf7e012 */     \
+ 0xdd753201, 0x9a23, 0x4e08,                     \
+ {0x95, 0x7f, 0xb3, 0x61, 0x6b, 0xf7, 0xe0, 0x12 }}
+
+#define NS_SMIMEJSHELPER_CONTRACTID \
+  "@mozilla.org/messenger-smime/smimejshelper;1"
+
+#define NS_SMIMEJSJELPER_CID                     \
+{ /* d57d928c-60e4-4f81-999d-5c762e611205 */     \
+ 0xd57d928c, 0x60e4, 0x4f81,                     \
+ {0x99, 0x9d, 0x5c, 0x76, 0x2e, 0x61, 0x12, 0x05 }}
+
+#define NS_SMIMEENCRYPTURISERVICE_CONTRACTID     \
+  "@mozilla.org/messenger-smime/smime-encrypted-uris-service;1"
+
+#define NS_SMIMEENCRYPTURISERVICE_CID            \
+{ /* a0134d58-018f-4d40-a099-fa079e5024a6 */     \
+ 0xa0134d58, 0x018f, 0x4d40,                     \
+ {0xa0, 0x99, 0xfa, 0x07, 0x9e, 0x50, 0x24, 0xa6 }}
+
+#endif // nsMsgSMIMECID_h__
diff --git a/mailnews/extensions/smime/src/nsSMimeJSHelper.cpp b/mailnews/extensions/smime/src/nsSMimeJSHelper.cpp
new file mode 100644
index 000000000..c392980b6
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsSMimeJSHelper.cpp
@@ -0,0 +1,335 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/mailnews/MimeHeaderParser.h"
+#include "nspr.h"
+#include "nsSMimeJSHelper.h"
+#include "nsCOMPtr.h"
+#include "nsMemory.h"
+#include "nsStringGlue.h"
+#include "nsIX509CertDB.h"
+#include "nsIX509CertValidity.h"
+#include "nsIServiceManager.h"
+#include "nsServiceManagerUtils.h"
+#include "nsCRTGlue.h"
+
+using namespace mozilla::mailnews;
+
+NS_IMPL_ISUPPORTS(nsSMimeJSHelper, nsISMimeJSHelper)
+
+nsSMimeJSHelper::nsSMimeJSHelper()
+{
+}
+
+nsSMimeJSHelper::~nsSMimeJSHelper()
+{
+}
+
+NS_IMETHODIMP nsSMimeJSHelper::GetRecipientCertsInfo(
+    nsIMsgCompFields *compFields,
+    uint32_t *count,
+    char16_t ***emailAddresses,
+    int32_t **certVerification,
+    char16_t ***certIssuedInfos,
+    char16_t ***certExpiresInfos,
+    nsIX509Cert ***certs,
+    bool *canEncrypt)
+{
+  NS_ENSURE_ARG_POINTER(count);
+  *count = 0;
+
+  NS_ENSURE_ARG_POINTER(emailAddresses);
+  NS_ENSURE_ARG_POINTER(certVerification);
+  NS_ENSURE_ARG_POINTER(certIssuedInfos);
+  NS_ENSURE_ARG_POINTER(certExpiresInfos);
+  NS_ENSURE_ARG_POINTER(certs);
+  NS_ENSURE_ARG_POINTER(canEncrypt);
+
+  NS_ENSURE_ARG_POINTER(compFields);
+
+  nsTArray<nsCString> mailboxes;
+  nsresult rv = getMailboxList(compFields, mailboxes);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  uint32_t mailbox_count = mailboxes.Length();
+
+  nsCOMPtr<nsIX509CertDB> certdb = do_GetService(NS_X509CERTDB_CONTRACTID);
+
+  *count = mailbox_count;
+  *canEncrypt = false;
+  rv = NS_OK;
+
+  if (mailbox_count)
+  {
+    char16_t **outEA = static_cast<char16_t **>(moz_xmalloc(mailbox_count * sizeof(char16_t *)));
+    int32_t *outCV = static_cast<int32_t *>(moz_xmalloc(mailbox_count * sizeof(int32_t)));
+    char16_t **outCII = static_cast<char16_t **>(moz_xmalloc(mailbox_count * sizeof(char16_t *)));
+    char16_t **outCEI = static_cast<char16_t **>(moz_xmalloc(mailbox_count * sizeof(char16_t *)));
+    nsIX509Cert **outCerts = static_cast<nsIX509Cert **>(moz_xmalloc(mailbox_count * sizeof(nsIX509Cert *)));
+
+    if (!outEA || !outCV || !outCII || !outCEI || !outCerts)
+    {
+      free(outEA);
+      free(outCV);
+      free(outCII);
+      free(outCEI);
+      free(outCerts);
+      rv = NS_ERROR_OUT_OF_MEMORY;
+    }
+    else
+    {
+      char16_t **iEA = outEA;
+      int32_t *iCV = outCV;
+      char16_t **iCII = outCII;
+      char16_t **iCEI = outCEI;
+      nsIX509Cert **iCert = outCerts;
+
+      bool found_blocker = false;
+      bool memory_failure = false;
+
+      for (uint32_t i = 0;
+          i < mailbox_count;
+          ++i, ++iEA, ++iCV, ++iCII, ++iCEI, ++iCert)
+      {
+        *iCert = nullptr;
+        *iCV = 0;
+        *iCII = nullptr;
+        *iCEI = nullptr;
+
+        if (memory_failure) {
+          *iEA = nullptr;
+          continue;
+        }
+
+        nsCString &email = mailboxes[i];
+        *iEA = ToNewUnicode(NS_ConvertUTF8toUTF16(email));
+        if (!*iEA) {
+          memory_failure = true;
+          continue;
+        }
+
+        nsCString email_lowercase;
+        ToLowerCase(email, email_lowercase);
+
+        nsCOMPtr<nsIX509Cert> cert;
+        if (NS_SUCCEEDED(certdb->FindCertByEmailAddress(
+                           email_lowercase.get(), getter_AddRefs(cert))))
+        {
+          *iCert = cert;
+          NS_ADDREF(*iCert);
+
+          nsCOMPtr<nsIX509CertValidity> validity;
+          rv = cert->GetValidity(getter_AddRefs(validity));
+
+          if (NS_SUCCEEDED(rv)) {
+            nsString id, ed;
+
+            if (NS_SUCCEEDED(validity->GetNotBeforeLocalDay(id)))
+            {
+              *iCII = ToNewUnicode(id);
+              if (!*iCII) {
+                memory_failure = true;
+                continue;
+              }
+            }
+
+            if (NS_SUCCEEDED(validity->GetNotAfterLocalDay(ed)))
+            {
+              *iCEI = ToNewUnicode(ed);
+              if (!*iCEI) {
+                memory_failure = true;
+                continue;
+              }
+            }
+          }
+        }
+        else
+        {
+          found_blocker = true;
+        }
+      }
+
+      if (memory_failure) {
+        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mailbox_count, outEA);
+        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mailbox_count, outCII);
+        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mailbox_count, outCEI);
+        NS_FREE_XPCOM_ISUPPORTS_POINTER_ARRAY(mailbox_count, outCerts);
+        free(outCV);
+        rv = NS_ERROR_OUT_OF_MEMORY;
+      }
+      else {
+        if (mailbox_count > 0 && !found_blocker)
+        {
+          *canEncrypt = true;
+        }
+
+        *emailAddresses = outEA;
+        *certVerification = outCV;
+        *certIssuedInfos = outCII;
+        *certExpiresInfos = outCEI;
+        *certs = outCerts;
+      }
+    }
+  }
+  return rv;
+}
+
+NS_IMETHODIMP nsSMimeJSHelper::GetNoCertAddresses(
+    nsIMsgCompFields *compFields,
+    uint32_t *count,
+    char16_t ***emailAddresses)
+{
+  NS_ENSURE_ARG_POINTER(count);
+  *count = 0;
+
+  NS_ENSURE_ARG_POINTER(emailAddresses);
+
+  NS_ENSURE_ARG_POINTER(compFields);
+
+  nsTArray<nsCString> mailboxes;
+  nsresult rv = getMailboxList(compFields, mailboxes);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  uint32_t mailbox_count = mailboxes.Length();
+
+  if (!mailbox_count)
+  {
+    *count = 0;
+    *emailAddresses = nullptr;
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIX509CertDB> certdb = do_GetService(NS_X509CERTDB_CONTRACTID);
+
+  uint32_t missing_count = 0;
+  bool *haveCert = new bool[mailbox_count];
+  if (!haveCert)
+  {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  rv = NS_OK;
+
+  if (mailbox_count)
+  {
+    for (uint32_t i = 0; i < mailbox_count; ++i)
+    {
+      haveCert[i] = false;
+
+      nsCString email_lowercase;
+      ToLowerCase(mailboxes[i], email_lowercase);
+
+      nsCOMPtr<nsIX509Cert> cert;
+      if (NS_SUCCEEDED(certdb->FindCertByEmailAddress(
+                         email_lowercase.get(), getter_AddRefs(cert))))
+        haveCert[i] = true;
+
+      if (!haveCert[i])
+        ++missing_count;
+    }
+  }
+
+  *count = missing_count;
+
+  if (missing_count)
+  {
+    char16_t **outEA = static_cast<char16_t **>(moz_xmalloc(missing_count * sizeof(char16_t *)));
+    if (!outEA )
+    {
+      rv = NS_ERROR_OUT_OF_MEMORY;
+    }
+    else
+    {
+      char16_t **iEA = outEA;
+
+      bool memory_failure = false;
+
+      for (uint32_t i = 0; i < mailbox_count; ++i)
+      {
+        if (!haveCert[i])
+        {
+          if (memory_failure) {
+            *iEA = nullptr;
+          }
+          else {
+            *iEA = ToNewUnicode(NS_ConvertUTF8toUTF16(mailboxes[i]));
+            if (!*iEA) {
+              memory_failure = true;
+            }
+          }
+          ++iEA;
+        }
+      }
+
+      if (memory_failure) {
+        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(missing_count, outEA);
+        rv = NS_ERROR_OUT_OF_MEMORY;
+      }
+      else {
+        *emailAddresses = outEA;
+      }
+    }
+  }
+  else
+  {
+    *emailAddresses = nullptr;
+  }
+
+  delete [] haveCert;
+  return rv;
+}
+
+nsresult nsSMimeJSHelper::getMailboxList(nsIMsgCompFields *compFields,
+    nsTArray<nsCString> &mailboxes)
+{
+  if (!compFields)
+    return NS_ERROR_INVALID_ARG;
+
+  nsresult res;
+  nsString to, cc, bcc, ng;
+
+  res = compFields->GetTo(to);
+  if (NS_FAILED(res))
+    return res;
+
+  res = compFields->GetCc(cc);
+  if (NS_FAILED(res))
+    return res;
+
+  res = compFields->GetBcc(bcc);
+  if (NS_FAILED(res))
+    return res;
+
+  res = compFields->GetNewsgroups(ng);
+  if (NS_FAILED(res))
+    return res;
+
+  {
+    nsCString all_recipients;
+
+    if (!to.IsEmpty()) {
+      all_recipients.Append(NS_ConvertUTF16toUTF8(to));
+      all_recipients.Append(',');
+    }
+
+    if (!cc.IsEmpty()) {
+      all_recipients.Append(NS_ConvertUTF16toUTF8(cc));
+      all_recipients.Append(',');
+    }
+
+    if (!bcc.IsEmpty()) {
+      all_recipients.Append(NS_ConvertUTF16toUTF8(bcc));
+      all_recipients.Append(',');
+    }
+
+    if (!ng.IsEmpty())
+      all_recipients.Append(NS_ConvertUTF16toUTF8(ng));
+
+    ExtractEmails(EncodedHeader(all_recipients),
+      UTF16ArrayAdapter<>(mailboxes));
+  }
+
+  return NS_OK;
+}
diff --git a/mailnews/extensions/smime/src/nsSMimeJSHelper.h b/mailnews/extensions/smime/src/nsSMimeJSHelper.h
new file mode 100644
index 000000000..403ab2098
--- /dev/null
+++ b/mailnews/extensions/smime/src/nsSMimeJSHelper.h
@@ -0,0 +1,26 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsSMimeJSHelper_H_
+#define _nsSMimeJSHelper_H_
+
+#include "nsISMimeJSHelper.h"
+#include "nsIX509Cert.h"
+#include "nsIMsgCompFields.h"
+
+class nsSMimeJSHelper : public nsISMimeJSHelper
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISMIMEJSHELPER
+
+  nsSMimeJSHelper();
+
+private:
+  virtual ~nsSMimeJSHelper();
+  nsresult getMailboxList(nsIMsgCompFields *compFields,
+    nsTArray<nsCString> &mailboxes);
+};
+
+#endif
diff --git a/mailnews/extensions/smime/src/smime-service.js b/mailnews/extensions/smime/src/smime-service.js
new file mode 100644
index 000000000..9fa618fd6
--- /dev/null
+++ b/mailnews/extensions/smime/src/smime-service.js
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+function SMIMEService() {}
+
+SMIMEService.prototype = {
+  name: "smime",
+  chromePackageName: "messenger",
+  showPanel: function(server) {
+    // don't show the panel for news, rss, or local accounts
+    return (server.type != "nntp" && server.type != "rss" &&
+            server.type != "im" && server.type != "none");
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIMsgAccountManagerExtension]),
+  classID: Components.ID("{f2809796-1dd1-11b2-8c1b-8f15f007c699}"),
+};
+
+var components = [SMIMEService];
+var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/mailnews/extensions/smime/src/smime-service.manifest b/mailnews/extensions/smime/src/smime-service.manifest
new file mode 100644
index 000000000..1b799ed7b
--- /dev/null
+++ b/mailnews/extensions/smime/src/smime-service.manifest
@@ -0,0 +1,3 @@
+component {f2809796-1dd1-11b2-8c1b-8f15f007c699} smime-service.js
+contract @mozilla.org/accountmanager/extension;1?name=smime {f2809796-1dd1-11b2-8c1b-8f15f007c699}
+category mailnews-accountmanager-extensions smime-account-manager-extension @mozilla.org/accountmanager/extension;1?name=smime