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

1 files changed, 6052 insertions, 0 deletions

diff --git a/mailnews/compose/src/nsMsgCompose.cpp b/mailnews/compose/src/nsMsgCompose.cpp
new file mode 100644
index 000000000..58340bffa
--- /dev/null
+++ b/mailnews/compose/src/nsMsgCompose.cpp
@@ -0,0 +1,6052 @@
+/* -*- 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 "nsMsgCompose.h"
+#include "nsIDOMDocument.h"
+#include "nsIDOMNode.h"
+#include "nsIDOMNodeList.h"
+#include "nsIDOMText.h"
+#include "nsIDOMHTMLImageElement.h"
+#include "nsIDOMHTMLLinkElement.h"
+#include "nsIDOMHTMLAnchorElement.h"
+#include "nsPIDOMWindow.h"
+#include "mozIDOMWindow.h"
+#include "nsISelectionController.h"
+#include "nsMsgI18N.h"
+#include "nsMsgCompCID.h"
+#include "nsMsgQuote.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsIDocumentEncoder.h"    // for editor output flags
+#include "nsMsgCompUtils.h"
+#include "nsComposeStrings.h"
+#include "nsIMsgSend.h"
+#include "nsMailHeaders.h"
+#include "nsMsgPrompts.h"
+#include "nsMimeTypes.h"
+#include "nsICharsetConverterManager.h"
+#include "nsTextFormatter.h"
+#include "nsIPlaintextEditor.h"
+#include "nsIHTMLEditor.h"
+#include "nsIEditorMailSupport.h"
+#include "plstr.h"
+#include "prmem.h"
+#include "nsIDocShell.h"
+#include "nsIRDFService.h"
+#include "nsRDFCID.h"
+#include "nsAbBaseCID.h"
+#include "nsIAbMDBDirectory.h"
+#include "nsCExternalHandlerService.h"
+#include "nsIMIMEService.h"
+#include "nsIDocShellTreeItem.h"
+#include "nsIDocShellTreeOwner.h"
+#include "nsIWindowMediator.h"
+#include "nsIURL.h"
+#include "nsIMsgMailSession.h"
+#include "nsMsgBaseCID.h"
+#include "nsMsgMimeCID.h"
+#include "nsDateTimeFormatCID.h"
+#include "nsIDateTimeFormat.h"
+#include "nsILocaleService.h"
+#include "nsILocale.h"
+#include "nsIMsgComposeService.h"
+#include "nsIMsgComposeProgressParams.h"
+#include "nsMsgUtils.h"
+#include "nsIMsgImapMailFolder.h"
+#include "nsImapCore.h"
+#include "nsUnicharUtils.h"
+#include "nsNetUtil.h"
+#include "nsIContentViewer.h"
+#include "nsIMsgMdnGenerator.h"
+#include "plbase64.h"
+#include "nsUConvCID.h"
+#include "nsIUnicodeNormalizer.h"
+#include "nsIMsgAccountManager.h"
+#include "nsIMsgAttachment.h"
+#include "nsIMsgProgress.h"
+#include "nsMsgFolderFlags.h"
+#include "nsIMsgDatabase.h"
+#include "nsStringStream.h"
+#include "nsIMutableArray.h"
+#include "nsArrayUtils.h"
+#include "nsIMsgWindow.h"
+#include "nsITextToSubURI.h"
+#include "nsIAbManager.h"
+#include "nsCRT.h"
+#include "mozilla/Services.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+#include "mozilla/Preferences.h"
+#include "nsStreamConverter.h"
+#include "nsISelection.h"
+#include "nsJSEnvironment.h"
+#include "nsIObserverService.h"
+#include "nsIProtocolHandler.h"
+#include "nsContentUtils.h"
+#include "nsIFileURL.h"
+
+using namespace mozilla;
+using namespace mozilla::mailnews;
+
+static nsresult GetReplyHeaderInfo(int32_t* reply_header_type,
+                                   nsString& reply_header_locale,
+                                   nsString& reply_header_authorwrote,
+                                   nsString& reply_header_ondateauthorwrote,
+                                   nsString& reply_header_authorwroteondate,
+                                   nsString& reply_header_originalmessage)
+{
+  nsresult rv;
+  *reply_header_type = 0;
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // If fetching any of the preferences fails,
+  // we return early with header_type = 0 meaning "no header".
+  rv = NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.reply_header_locale", EmptyString(), reply_header_locale);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_authorwrotesingle",
+                                        reply_header_authorwrote);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_ondateauthorwrote",
+                                        reply_header_ondateauthorwrote);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_authorwroteondate",
+                                        reply_header_authorwroteondate);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_originalmessage",
+                                        reply_header_originalmessage);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return prefBranch->GetIntPref("mailnews.reply_header_type", reply_header_type);
+}
+
+static void TranslateLineEnding(nsString& data)
+{
+  char16_t* rPtr;   //Read pointer
+  char16_t* wPtr;   //Write pointer
+  char16_t* sPtr;   //Start data pointer
+  char16_t* ePtr;   //End data pointer
+
+  rPtr = wPtr = sPtr = data.BeginWriting();
+  ePtr = rPtr + data.Length();
+
+  while (rPtr < ePtr)
+  {
+    if (*rPtr == nsCRT::CR) {
+      *wPtr = nsCRT::LF;
+      if (rPtr + 1 < ePtr && *(rPtr + 1) == nsCRT::LF)
+        rPtr ++;
+    }
+    else
+      *wPtr = *rPtr;
+
+    rPtr ++;
+    wPtr ++;
+  }
+
+  data.SetLength(wPtr - sPtr);
+}
+
+static void GetTopmostMsgWindowCharacterSet(nsCString& charset, bool* charsetOverride)
+{
+  // HACK: if we are replying to a message and that message used a charset over ride
+  // (as specified in the top most window (assuming the reply originated from that window)
+  // then use that over ride charset instead of the charset specified in the message
+  nsCOMPtr <nsIMsgMailSession> mailSession (do_GetService(NS_MSGMAILSESSION_CONTRACTID));
+  if (mailSession)
+  {
+    nsCOMPtr<nsIMsgWindow>    msgWindow;
+    mailSession->GetTopmostMsgWindow(getter_AddRefs(msgWindow));
+    if (msgWindow)
+    {
+      msgWindow->GetMailCharacterSet(charset);
+      msgWindow->GetCharsetOverride(charsetOverride);
+    }
+  }
+}
+
+nsMsgCompose::nsMsgCompose()
+{
+
+  mQuotingToFollow = false;
+  mInsertingQuotedContent = false;
+  mWhatHolder = 1;
+  m_window = nullptr;
+  m_editor = nullptr;
+  mQuoteStreamListener=nullptr;
+  mCharsetOverride = false;
+  mAnswerDefaultCharset = false;
+  mDeleteDraft = false;
+  m_compFields = nullptr;    //m_compFields will be set during nsMsgCompose::Initialize
+  mType = nsIMsgCompType::New;
+
+  // For TagConvertible
+  // Read and cache pref
+  mConvertStructs = false;
+  nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
+  if (prefBranch)
+    prefBranch->GetBoolPref("converter.html2txt.structs", &mConvertStructs);
+
+  m_composeHTML = false;
+}
+
+
+nsMsgCompose::~nsMsgCompose()
+{
+  NS_IF_RELEASE(m_compFields);
+  NS_IF_RELEASE(mQuoteStreamListener);
+}
+
+/* the following macro actually implement addref, release and query interface for our component. */
+NS_IMPL_ISUPPORTS(nsMsgCompose, nsIMsgCompose, nsIMsgSendListener,
+  nsISupportsWeakReference)
+
+//
+// Once we are here, convert the data which we know to be UTF-8 to UTF-16
+// for insertion into the editor
+//
+nsresult
+GetChildOffset(nsIDOMNode *aChild, nsIDOMNode *aParent, int32_t &aOffset)
+{
+  NS_ASSERTION((aChild && aParent), "bad args");
+  nsresult result = NS_ERROR_NULL_POINTER;
+  if (aChild && aParent)
+  {
+    nsCOMPtr<nsIDOMNodeList> childNodes;
+    result = aParent->GetChildNodes(getter_AddRefs(childNodes));
+    if ((NS_SUCCEEDED(result)) && (childNodes))
+    {
+      int32_t i=0;
+      for ( ; NS_SUCCEEDED(result); i++)
+      {
+        nsCOMPtr<nsIDOMNode> childNode;
+        result = childNodes->Item(i, getter_AddRefs(childNode));
+        if ((NS_SUCCEEDED(result)) && (childNode))
+        {
+          if (childNode.get()==aChild)
+          {
+            aOffset = i;
+            break;
+          }
+        }
+        else if (!childNode)
+          result = NS_ERROR_NULL_POINTER;
+      }
+    }
+    else if (!childNodes)
+      result = NS_ERROR_NULL_POINTER;
+  }
+  return result;
+}
+
+nsresult
+GetNodeLocation(nsIDOMNode *inChild, nsCOMPtr<nsIDOMNode> *outParent, int32_t *outOffset)
+{
+  NS_ASSERTION((outParent && outOffset), "bad args");
+  nsresult result = NS_ERROR_NULL_POINTER;
+  if (inChild && outParent && outOffset)
+  {
+    result = inChild->GetParentNode(getter_AddRefs(*outParent));
+    if ( (NS_SUCCEEDED(result)) && (*outParent) )
+    {
+      result = GetChildOffset(inChild, *outParent, *outOffset);
+    }
+  }
+
+  return result;
+}
+
+bool nsMsgCompose::IsEmbeddedObjectSafe(const char * originalScheme,
+                                          const char * originalHost,
+                                          const char * originalPath,
+                                          nsIDOMNode * object)
+{
+  nsresult rv;
+
+  nsCOMPtr<nsIDOMHTMLImageElement> image;
+  nsCOMPtr<nsIDOMHTMLLinkElement> link;
+  nsCOMPtr<nsIDOMHTMLAnchorElement> anchor;
+  nsAutoString objURL;
+
+  if (!object || !originalScheme || !originalPath) //having a null host is ok...
+    return false;
+
+  if ((image = do_QueryInterface(object)))
+  {
+    if (NS_FAILED(image->GetSrc(objURL)))
+      return false;
+  }
+  else if ((link = do_QueryInterface(object)))
+  {
+    if (NS_FAILED(link->GetHref(objURL)))
+      return false;
+  }
+  else if ((anchor = do_QueryInterface(object)))
+  {
+    if (NS_FAILED(anchor->GetHref(objURL)))
+      return false;
+  }
+  else
+    return false;
+
+  if (!objURL.IsEmpty())
+  {
+    nsCOMPtr<nsIURI> uri;
+    rv = NS_NewURI(getter_AddRefs(uri), objURL);
+    if (NS_SUCCEEDED(rv) && uri)
+    {
+      nsAutoCString scheme;
+      rv = uri->GetScheme(scheme);
+      if (NS_SUCCEEDED(rv) && scheme.Equals(originalScheme, nsCaseInsensitiveCStringComparator()))
+      {
+        nsAutoCString host;
+        rv = uri->GetAsciiHost(host);
+        // mailbox url don't have a host therefore don't be too strict.
+        if (NS_SUCCEEDED(rv) && (host.IsEmpty() || originalHost || host.Equals(originalHost, nsCaseInsensitiveCStringComparator())))
+        {
+          nsAutoCString path;
+          rv = uri->GetPath(path);
+          if (NS_SUCCEEDED(rv))
+          {
+            const char * query = strrchr(path.get(), '?');
+            if (query && PL_strncasecmp(path.get(), originalPath, query - path.get()) == 0)
+                return true; //This object is a part of the original message, we can send it safely.
+          }
+        }
+      }
+    }
+  }
+
+  return false;
+}
+
+/* Reset the uri's of embedded objects because we've saved the draft message, and the
+   original message doesn't exist anymore.
+ */
+nsresult nsMsgCompose::ResetUrisForEmbeddedObjects()
+{
+  nsCOMPtr<nsIArray> aNodeList;
+  uint32_t numNodes;
+  uint32_t i;
+
+  nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(m_editor));
+  if (!mailEditor)
+    return NS_ERROR_FAILURE;
+
+  nsresult rv = mailEditor->GetEmbeddedObjects(getter_AddRefs(aNodeList));
+  if (NS_FAILED(rv) || !aNodeList)
+    return NS_ERROR_FAILURE;
+
+  if (NS_FAILED(aNodeList->GetLength(&numNodes)))
+    return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIDOMNode> node;
+  nsCString curDraftIdURL;
+
+  rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));
+
+  // Skip if no draft id (probably a new draft msg).
+  if (NS_SUCCEEDED(rv) && mMsgSend && !curDraftIdURL.IsEmpty())
+  {
+    nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
+    rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
+    NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg header DB interface pointer.");
+    if (NS_SUCCEEDED(rv) && msgDBHdr)
+    {
+      // build up the old and new ?number= parts. This code assumes it is
+      // called *before* RemoveCurrentDraftMessage, so that curDraftIdURL
+      // is the previous draft.
+      // This code works for both imap and local messages.
+      nsMsgKey newMsgKey;
+      nsCString folderUri;
+      nsCString baseMsgUri;
+      mMsgSend->GetMessageKey(&newMsgKey);
+      mMsgSend->GetFolderUri(folderUri);
+      nsCOMPtr<nsIMsgFolder> folder;
+      rv = GetExistingFolder(folderUri, getter_AddRefs(folder));
+      NS_ENSURE_SUCCESS(rv, rv);
+      folder->GetBaseMessageURI(baseMsgUri);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      nsCOMPtr<nsIDOMElement> domElement;
+      for (i = 0; i < numNodes; i ++)
+      {
+        domElement = do_QueryElementAt(aNodeList, i);
+        if (!domElement)
+          continue;
+
+        nsCOMPtr<nsIDOMHTMLImageElement> image = do_QueryInterface(domElement);
+        if (!image)
+          continue;
+        nsCString partNum;
+        mMsgSend->GetPartForDomIndex(i, partNum);
+        // do we care about anything besides images?
+        nsAutoString objURL;
+        image->GetSrc(objURL);
+
+        // First we need to make sure that the URL is associated with a message
+        // protocol so we don't accidentally manipulate a URL like:
+        // http://www.site.com/retrieve.html?C=image.jpg.
+        nsCOMPtr<nsIIOService> ioService = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
+        NS_ENSURE_SUCCESS(rv, rv);
+        nsAutoCString scheme;
+        ioService->ExtractScheme(NS_ConvertUTF16toUTF8(objURL), scheme);
+
+        // Detect message protocols where attachments can occur.
+        nsCOMPtr<nsIProtocolHandler> handler;
+        ioService->GetProtocolHandler(scheme.get(), getter_AddRefs(handler));
+        if (!handler)
+          continue;
+        nsCOMPtr<nsIMsgMessageFetchPartService> mailHandler = do_QueryInterface(handler);
+        if (!mailHandler)
+          continue;
+
+        // the objURL is the full path to the embedded content. We need
+        // to update it with uri for the folder we just saved to, and the new
+        // msg key.
+        int32_t restOfUrlIndex = objURL.Find("?number=");
+        if (restOfUrlIndex == kNotFound)
+          restOfUrlIndex = objURL.FindChar('?');
+        else
+          restOfUrlIndex = objURL.FindChar('&', restOfUrlIndex);
+
+        if (restOfUrlIndex == kNotFound)
+          continue;
+
+        nsCString newURI(baseMsgUri);
+        newURI.Append('#');
+        newURI.AppendInt(newMsgKey);
+        nsString restOfUrl(Substring(objURL, restOfUrlIndex, objURL.Length() - restOfUrlIndex));
+        int32_t partIndex = restOfUrl.Find("part=");
+        if (partIndex != kNotFound)
+        {
+          partIndex += 5;
+          int32_t endPart = restOfUrl.FindChar('&', partIndex);
+          int32_t existingPartLen = (endPart == kNotFound) ? -1 : endPart - partIndex;
+          restOfUrl.Replace(partIndex, existingPartLen, NS_ConvertASCIItoUTF16(partNum));
+        }
+
+        nsCOMPtr<nsIMsgMessageService> msgService;
+        rv = GetMessageServiceFromURI(newURI, getter_AddRefs(msgService));
+        if (NS_FAILED(rv))
+          continue;
+        nsCOMPtr<nsIURI> newUrl;
+        rv = msgService->GetUrlForUri(newURI.get(), getter_AddRefs(newUrl), nullptr);
+        if (!newUrl)
+          continue;
+        nsCString spec;
+        rv = newUrl->GetSpec(spec);
+        NS_ENSURE_SUCCESS(rv, rv);
+        nsString newSrc;
+        // mailbox urls will have ?number=xxx; imap urls won't. We need to
+        // handle both cases because we may be going from a mailbox url to
+        // and imap url, or vice versa, depending on the original folder,
+        // and the destination drafts folder.
+        bool specHasQ = (spec.FindChar('?') != kNotFound);
+        if (specHasQ && restOfUrl.CharAt(0) == '?')
+          restOfUrl.SetCharAt('&', 0);
+        else if (!specHasQ && restOfUrl.CharAt(0) == '&')
+          restOfUrl.SetCharAt('?', 0);
+        AppendUTF8toUTF16(spec, newSrc);
+        newSrc.Append(restOfUrl);
+        image->SetSrc(newSrc);
+      }
+    }
+  }
+
+  return NS_OK;
+}
+
+
+/* The purpose of this function is to mark any embedded object that wasn't a RFC822 part
+   of the original message as moz-do-not-send.
+   That will prevent us to attach data not specified by the user or not present in the
+   original message.
+*/
+nsresult nsMsgCompose::TagEmbeddedObjects(nsIEditorMailSupport *aEditor)
+{
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIArray> aNodeList;
+  uint32_t count;
+  uint32_t i;
+
+  if (!aEditor)
+    return NS_ERROR_FAILURE;
+
+  rv = aEditor->GetEmbeddedObjects(getter_AddRefs(aNodeList));
+  if (NS_FAILED(rv) || !aNodeList)
+    return NS_ERROR_FAILURE;
+
+  if (NS_FAILED(aNodeList->GetLength(&count)))
+    return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIURI> originalUrl;
+  nsCString originalScheme;
+  nsCString originalHost;
+  nsCString originalPath;
+
+  // first, convert the rdf original msg uri into a url that represents the message...
+  nsCOMPtr <nsIMsgMessageService> msgService;
+  rv = GetMessageServiceFromURI(mOriginalMsgURI, getter_AddRefs(msgService));
+  if (NS_SUCCEEDED(rv))
+  {
+    rv = msgService->GetUrlForUri(mOriginalMsgURI.get(), getter_AddRefs(originalUrl), nullptr);
+    if (NS_SUCCEEDED(rv) && originalUrl)
+    {
+      originalUrl->GetScheme(originalScheme);
+      originalUrl->GetAsciiHost(originalHost);
+      originalUrl->GetPath(originalPath);
+    }
+  }
+
+  // Then compare the url of each embedded objects with the original message.
+  // If they a not coming from the original message, they should not be sent
+  // with the message.
+  for (i = 0; i < count; i ++)
+  {
+    nsCOMPtr<nsIDOMNode> node = do_QueryElementAt(aNodeList, i);
+    if (!node)
+      continue;
+    if (IsEmbeddedObjectSafe(originalScheme.get(), originalHost.get(),
+                             originalPath.get(), node))
+      continue; //Don't need to tag this object, it safe to send it.
+
+    //The source of this object should not be sent with the message
+    nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(node);
+    if (domElement)
+      domElement->SetAttribute(NS_LITERAL_STRING("moz-do-not-send"), NS_LITERAL_STRING("true"));
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::GetInsertingQuotedContent(bool * aInsertingQuotedText)
+{
+  NS_ENSURE_ARG_POINTER(aInsertingQuotedText);
+  *aInsertingQuotedText = mInsertingQuotedContent;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::SetInsertingQuotedContent(bool aInsertingQuotedText)
+{
+  mInsertingQuotedContent = aInsertingQuotedText;
+  return NS_OK;
+}
+
+void
+nsMsgCompose::InsertDivWrappedTextAtSelection(const nsAString &aText,
+                                              const nsAString &classStr)
+{
+  NS_ASSERTION(m_editor, "InsertDivWrappedTextAtSelection called, but no editor exists\n");
+  if (!m_editor)
+    return;
+
+  nsCOMPtr<nsIDOMElement> divElem;
+  nsCOMPtr<nsIHTMLEditor> htmlEditor(do_QueryInterface(m_editor));
+
+  nsresult rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("div"),
+                                                      getter_AddRefs(divElem));
+
+  NS_ENSURE_SUCCESS_VOID(rv);
+
+  nsCOMPtr<nsIDOMNode> divNode (do_QueryInterface(divElem));
+
+  // We need the document
+  nsCOMPtr<nsIDOMDocument> doc;
+  rv = m_editor->GetDocument(getter_AddRefs(doc));
+  NS_ENSURE_SUCCESS_VOID(rv);
+
+  // Break up the text by newlines, and then insert text nodes followed
+  // by <br> nodes.
+  int32_t start = 0;
+  int32_t end = aText.Length();
+
+  for (;;)
+  {
+    int32_t delimiter = aText.FindChar('\n', start);
+    if (delimiter == kNotFound)
+      delimiter = end;
+
+    nsCOMPtr<nsIDOMText> textNode;
+    rv = doc->CreateTextNode(Substring(aText, start, delimiter - start), getter_AddRefs(textNode));
+    NS_ENSURE_SUCCESS_VOID(rv);
+
+    nsCOMPtr<nsIDOMNode> newTextNode = do_QueryInterface(textNode);
+    nsCOMPtr<nsIDOMNode> resultNode;
+    rv = divElem->AppendChild(newTextNode, getter_AddRefs(resultNode));
+    NS_ENSURE_SUCCESS_VOID(rv);
+
+    // Now create and insert a BR
+    nsCOMPtr<nsIDOMElement> brElem;
+    rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("br"),
+                                               getter_AddRefs(brElem));
+    rv = divElem->AppendChild(brElem, getter_AddRefs(resultNode));
+    NS_ENSURE_SUCCESS_VOID(rv);
+
+    if (delimiter == end)
+      break;
+    start = ++delimiter;
+    if (start == end)
+      break;
+  }
+
+  htmlEditor->InsertElementAtSelection(divElem, true);
+  nsCOMPtr<nsIDOMNode> parent;
+  int32_t offset;
+
+  rv = GetNodeLocation(divNode, address_of(parent), &offset);
+  if (NS_SUCCEEDED(rv))
+  {
+    nsCOMPtr<nsISelection> selection;
+    m_editor->GetSelection(getter_AddRefs(selection));
+
+    if (selection)
+      selection->Collapse(parent, offset + 1);
+  }
+  if (divElem)
+    divElem->SetAttribute(NS_LITERAL_STRING("class"), classStr);
+}
+
+/*
+ * The following function replaces <plaintext> tags with <x-plaintext>.
+ * <plaintext> is a funny beast: It leads to everything following it
+ * being displayed verbatim, even a </plaintext> tag is ignored.
+ */
+static void
+remove_plaintext_tag(nsString &body)
+{
+  // Replace all <plaintext> and </plaintext> tags.
+  int32_t index = 0;
+  bool replaced = false;
+  while ((index = body.Find("<plaintext", /* ignoreCase = */ true, index)) != kNotFound) {
+    body.Insert(u"x-", index+1);
+    index += 12;
+    replaced = true;
+  }
+  if (replaced) {
+    index = 0;
+    while ((index = body.Find("</plaintext", /* ignoreCase = */ true, index)) != kNotFound) {
+      body.Insert(u"x-", index+2);
+      index += 13;
+    }
+  }
+}
+
+NS_IMETHODIMP
+nsMsgCompose::ConvertAndLoadComposeWindow(nsString& aPrefix,
+                                          nsString& aBuf,
+                                          nsString& aSignature,
+                                          bool aQuoted,
+                                          bool aHTMLEditor)
+{
+  NS_ASSERTION(m_editor, "ConvertAndLoadComposeWindow but no editor\n");
+  NS_ENSURE_TRUE(m_editor && m_identity, NS_ERROR_NOT_INITIALIZED);
+
+  // First, get the nsIEditor interface for future use
+  nsCOMPtr<nsIDOMNode> nodeInserted;
+
+  TranslateLineEnding(aPrefix);
+  TranslateLineEnding(aBuf);
+  TranslateLineEnding(aSignature);
+
+  m_editor->EnableUndo(false);
+
+  // Ok - now we need to figure out the charset of the aBuf we are going to send
+  // into the editor shell. There are I18N calls to sniff the data and then we need
+  // to call the new routine in the editor that will allow us to send in the charset
+  //
+
+  // Now, insert it into the editor...
+  nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(m_editor));
+  nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(m_editor));
+  nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(m_editor));
+  int32_t reply_on_top = 0;
+  bool sig_bottom = true;
+  m_identity->GetReplyOnTop(&reply_on_top);
+  m_identity->GetSigBottom(&sig_bottom);
+  bool sigOnTop = (reply_on_top == 1 && !sig_bottom);
+  bool isForwarded = (mType == nsIMsgCompType::ForwardInline);
+
+  if (aQuoted)
+  {
+    mInsertingQuotedContent = true;
+    if (!aPrefix.IsEmpty())
+    {
+      if (!aHTMLEditor)
+        aPrefix.AppendLiteral("\n");
+
+      int32_t reply_on_top = 0;
+      m_identity->GetReplyOnTop(&reply_on_top);
+      if (reply_on_top == 1)
+      {
+        // HTML editor eats one line break
+        if (aHTMLEditor)
+          textEditor->InsertLineBreak();
+
+        // add one newline if a signature comes before the quote, two otherwise
+        bool includeSignature = true;
+        bool sig_bottom = true;
+        bool attachFile = false;
+        nsString prefSigText;
+
+        m_identity->GetSigOnReply(&includeSignature);
+        m_identity->GetSigBottom(&sig_bottom);
+        m_identity->GetHtmlSigText(prefSigText);
+        nsresult rv = m_identity->GetAttachSignature(&attachFile);
+        if (includeSignature && !sig_bottom &&
+            ((NS_SUCCEEDED(rv) && attachFile) || !prefSigText.IsEmpty()))
+          textEditor->InsertLineBreak();
+        else {
+          textEditor->InsertLineBreak();
+          textEditor->InsertLineBreak();
+        }
+      }
+
+      InsertDivWrappedTextAtSelection(aPrefix,
+                                      NS_LITERAL_STRING("moz-cite-prefix"));
+    }
+
+    if (!aBuf.IsEmpty() && mailEditor)
+    {
+      // This leaves the caret at the right place to insert a bottom signature.
+      if (aHTMLEditor) {
+        nsAutoString body(aBuf);
+        remove_plaintext_tag(body);
+        mailEditor->InsertAsCitedQuotation(body,
+                                           mCiteReference,
+                                           true,
+                                           getter_AddRefs(nodeInserted));
+      } else {
+        mailEditor->InsertAsQuotation(aBuf,
+                                      getter_AddRefs(nodeInserted));
+      }
+    }
+
+    mInsertingQuotedContent = false;
+
+    (void)TagEmbeddedObjects(mailEditor);
+
+    if (!aSignature.IsEmpty())
+    {
+      //we cannot add it on top earlier, because TagEmbeddedObjects will mark all images in the signature as "moz-do-not-send"
+      if( sigOnTop )
+        m_editor->BeginningOfDocument();
+
+      if (aHTMLEditor && htmlEditor)
+        htmlEditor->InsertHTML(aSignature);
+      else if (htmlEditor)
+      {
+        textEditor->InsertLineBreak();
+        InsertDivWrappedTextAtSelection(aSignature,
+                                        NS_LITERAL_STRING("moz-signature"));
+      }
+
+      if( sigOnTop )
+        m_editor->EndOfDocument();
+    }
+  }
+  else
+  {
+    if (aHTMLEditor && htmlEditor)
+    {
+      mInsertingQuotedContent = true;
+      if (isForwarded && Substring(aBuf, 0, sizeof(MIME_FORWARD_HTML_PREFIX)-1)
+                         .EqualsLiteral(MIME_FORWARD_HTML_PREFIX)) {
+        // We assign the opening tag inside "<HTML><BODY><BR><BR>" before the
+        // two <br> elements.
+        // This is a bit hacky but we know that the MIME code prepares the
+        // forwarded content like this:
+        // <HTML><BODY><BR><BR> + forwarded header + header table.
+        // Note: We only do this when we prepare the message to be forwarded,
+        // a re-opened saved draft of a forwarded message does not repeat this.
+        nsString newBody(aBuf);
+        nsString divTag;
+        divTag.AssignLiteral("<div class=\"moz-forward-container\">");
+        newBody.Insert(divTag, sizeof(MIME_FORWARD_HTML_PREFIX)-1-8);
+        remove_plaintext_tag(newBody);
+        htmlEditor->RebuildDocumentFromSource(newBody);
+      } else {
+        htmlEditor->RebuildDocumentFromSource(aBuf);
+      }
+      mInsertingQuotedContent = false;
+
+      // when forwarding a message as inline, tag any embedded objects
+      // which refer to local images or files so we know not to include
+      // send them
+      if (isForwarded)
+        (void)TagEmbeddedObjects(mailEditor);
+
+      if (!aSignature.IsEmpty())
+      {
+        if (isForwarded && sigOnTop) {
+          // Use our own function, nsEditor::BeginningOfDocument() would position
+          // into the <div class="moz-forward-container"> we've just created.
+          MoveToBeginningOfDocument();
+        } else {
+          // Use our own function, nsEditor::EndOfDocument() would position
+          // into the <div class="moz-forward-container"> we've just created.
+          MoveToEndOfDocument();
+        }
+        htmlEditor->InsertHTML(aSignature);
+        if (isForwarded && sigOnTop)
+          m_editor->EndOfDocument();
+      }
+      else
+        m_editor->EndOfDocument();
+    }
+    else if (htmlEditor)
+    {
+      bool sigOnTopInserted = false;
+      if (isForwarded && sigOnTop && !aSignature.IsEmpty())
+      {
+        textEditor->InsertLineBreak();
+        InsertDivWrappedTextAtSelection(aSignature,
+                                        NS_LITERAL_STRING("moz-signature"));
+        m_editor->EndOfDocument();
+        sigOnTopInserted = true;
+      }
+
+      if (!aBuf.IsEmpty())
+      {
+        nsresult rv;
+        nsCOMPtr<nsIDOMElement> divElem;
+        nsCOMPtr<nsIDOMNode> extraBr;
+
+        if (isForwarded) {
+          // Special treatment for forwarded messages: Part 1.
+          // Create a <div> of the required class.
+          rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("div"),
+                                                     getter_AddRefs(divElem));
+          NS_ENSURE_SUCCESS(rv, rv);
+
+          nsAutoString attributeName;
+          nsAutoString attributeValue;
+          attributeName.AssignLiteral("class");
+          attributeValue.AssignLiteral("moz-forward-container");
+          divElem->SetAttribute(attributeName, attributeValue);
+
+          // We can't insert an empty <div>, so fill it with something.
+          nsCOMPtr<nsIDOMElement> brElem;
+          rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("br"),
+                                                     getter_AddRefs(brElem));
+          NS_ENSURE_SUCCESS(rv, rv);
+          rv = divElem->AppendChild(brElem, getter_AddRefs(extraBr));
+          NS_ENSURE_SUCCESS(rv, rv);
+
+          // Insert the non-empty <div> into the DOM.
+          rv = htmlEditor->InsertElementAtSelection(divElem, false);
+          NS_ENSURE_SUCCESS(rv, rv);
+
+          // Position into the div, so out content goes there.
+          nsCOMPtr<nsISelection> selection;
+          m_editor->GetSelection(getter_AddRefs(selection));
+          rv = selection->Collapse(divElem, 0);
+          NS_ENSURE_SUCCESS(rv, rv);
+        }
+
+        if (mailEditor) {
+          rv = mailEditor->InsertTextWithQuotations(aBuf);
+        } else {
+          // Will we ever get here?
+          rv = textEditor->InsertText(aBuf);
+        }
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        if (isForwarded) {
+          // Special treatment for forwarded messages: Part 2.
+          if (sigOnTopInserted) {
+            // Sadly the M-C editor inserts a <br> between the <div> for the signature
+            // and this <div>, so remove the <br> we don't want.
+            nsCOMPtr<nsIDOMNode> brBeforeDiv;
+            nsAutoString tagLocalName;
+            rv = divElem->GetPreviousSibling(getter_AddRefs(brBeforeDiv));
+            if (NS_SUCCEEDED(rv) && brBeforeDiv) {
+              brBeforeDiv->GetLocalName(tagLocalName);
+              if (tagLocalName.EqualsLiteral("br")) {
+                rv = m_editor->DeleteNode(brBeforeDiv);
+                NS_ENSURE_SUCCESS(rv, rv);
+              }
+            }
+          }
+
+          // Clean up the <br> we inserted.
+          rv = m_editor->DeleteNode(extraBr);
+          NS_ENSURE_SUCCESS(rv, rv);
+        }
+
+        // Use our own function instead of nsEditor::EndOfDocument() because
+        // we don't want to position at the end of the div we've just created.
+        // It's OK to use, even if we're not forwarding and didn't create a
+        // <div>.
+        rv = MoveToEndOfDocument();
+        NS_ENSURE_SUCCESS(rv, rv);
+      }
+
+      if ((!isForwarded || !sigOnTop) && !aSignature.IsEmpty()) {
+        textEditor->InsertLineBreak();
+        InsertDivWrappedTextAtSelection(aSignature,
+                                        NS_LITERAL_STRING("moz-signature"));
+      }
+    }
+  }
+
+  if (aBuf.IsEmpty())
+    m_editor->BeginningOfDocument();
+  else
+  {
+    switch (reply_on_top)
+    {
+      // This should set the cursor after the body but before the sig
+      case 0:
+      {
+        if (!textEditor)
+        {
+          m_editor->BeginningOfDocument();
+          break;
+        }
+
+        nsCOMPtr<nsISelection> selection = nullptr;
+        nsCOMPtr<nsIDOMNode>      parent = nullptr;
+        int32_t                   offset;
+        nsresult                  rv;
+
+        // get parent and offset of mailcite
+        rv = GetNodeLocation(nodeInserted, address_of(parent), &offset);
+        if (NS_FAILED(rv) || (!parent))
+        {
+          m_editor->BeginningOfDocument();
+          break;
+        }
+
+        // get selection
+        m_editor->GetSelection(getter_AddRefs(selection));
+        if (!selection)
+        {
+          m_editor->BeginningOfDocument();
+          break;
+        }
+
+        // place selection after mailcite
+        selection->Collapse(parent, offset+1);
+
+        // insert a break at current selection
+        textEditor->InsertLineBreak();
+
+        // i'm not sure if you need to move the selection back to before the
+        // break. expirement.
+        selection->Collapse(parent, offset+1);
+
+        break;
+      }
+
+      case 2:
+      {
+        m_editor->SelectAll();
+        break;
+      }
+
+      // This should set the cursor to the top!
+      default:
+      {
+        m_editor->BeginningOfDocument();
+        break;
+      }
+    }
+  }
+
+  nsCOMPtr<nsISelectionController> selCon;
+  m_editor->GetSelectionController(getter_AddRefs(selCon));
+
+  if (selCon)
+    selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL, nsISelectionController::SELECTION_ANCHOR_REGION, true);
+
+  m_editor->EnableUndo(true);
+  SetBodyModified(false);
+
+#ifdef MSGCOMP_TRACE_PERFORMANCE
+  nsCOMPtr<nsIMsgComposeService> composeService (do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID));
+  composeService->TimeStamp("Finished inserting data into the editor. The window is finally ready!", false);
+#endif
+  return NS_OK;
+}
+
+/**
+ * Check the identity pref to include signature on replies and forwards.
+ */
+bool nsMsgCompose::CheckIncludeSignaturePrefs(nsIMsgIdentity *identity)
+{
+  bool includeSignature = true;
+  switch (mType)
+  {
+    case nsIMsgCompType::ForwardInline:
+    case nsIMsgCompType::ForwardAsAttachment:
+      identity->GetSigOnForward(&includeSignature);
+      break;
+    case nsIMsgCompType::Reply:
+    case nsIMsgCompType::ReplyAll:
+    case nsIMsgCompType::ReplyToList:
+    case nsIMsgCompType::ReplyToGroup:
+    case nsIMsgCompType::ReplyToSender:
+    case nsIMsgCompType::ReplyToSenderAndGroup:
+      identity->GetSigOnReply(&includeSignature);
+      break;
+  }
+  return includeSignature;
+}
+
+nsresult
+nsMsgCompose::SetQuotingToFollow(bool aVal)
+{
+  mQuotingToFollow = aVal;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::GetQuotingToFollow(bool* quotingToFollow)
+{
+  NS_ENSURE_ARG(quotingToFollow);
+  *quotingToFollow = mQuotingToFollow;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::Initialize(nsIMsgComposeParams *aParams,
+                         mozIDOMWindowProxy *aWindow,
+                         nsIDocShell *aDocShell)
+{
+  NS_ENSURE_ARG_POINTER(aParams);
+  nsresult rv;
+
+  aParams->GetIdentity(getter_AddRefs(m_identity));
+
+  if (aWindow)
+  {
+    m_window = aWindow;
+    nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow);
+    NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
+
+    nsCOMPtr<nsIDocShellTreeItem> treeItem =
+      do_QueryInterface(window->GetDocShell());
+    nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+    rv = treeItem->GetTreeOwner(getter_AddRefs(treeOwner));
+    if (NS_FAILED(rv)) return rv;
+
+    m_baseWindow = do_QueryInterface(treeOwner);
+  }
+
+  MSG_ComposeFormat format;
+  aParams->GetFormat(&format);
+
+  MSG_ComposeType type;
+  aParams->GetType(&type);
+
+  nsCString originalMsgURI;
+  aParams->GetOriginalMsgURI(getter_Copies(originalMsgURI));
+  aParams->GetOrigMsgHdr(getter_AddRefs(mOrigMsgHdr));
+
+  nsCOMPtr<nsIMsgCompFields> composeFields;
+  aParams->GetComposeFields(getter_AddRefs(composeFields));
+
+  nsCOMPtr<nsIMsgComposeService> composeService = do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv,rv);
+
+  rv = composeService->DetermineComposeHTML(m_identity, format, &m_composeHTML);
+  NS_ENSURE_SUCCESS(rv,rv);
+
+  if (composeFields)
+  {
+    nsAutoCString draftId; // will get set for drafts and templates
+    rv = composeFields->GetDraftId(getter_Copies(draftId));
+    NS_ENSURE_SUCCESS(rv,rv);
+
+    // Set return receipt flag and type, and if we should attach a vCard
+    // by checking the identity prefs - but don't clobber the values for
+    // drafts and templates as they were set up already by mime when
+    // initializing the message.
+    if (m_identity && draftId.IsEmpty() && type != nsIMsgCompType::Template)
+    {
+      bool requestReturnReceipt = false;
+      rv = m_identity->GetRequestReturnReceipt(&requestReturnReceipt);
+      NS_ENSURE_SUCCESS(rv, rv);
+      rv = composeFields->SetReturnReceipt(requestReturnReceipt);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      int32_t receiptType = nsIMsgMdnGenerator::eDntType;
+      rv = m_identity->GetReceiptHeaderType(&receiptType);
+      NS_ENSURE_SUCCESS(rv, rv);
+      rv = composeFields->SetReceiptHeaderType(receiptType);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      bool requestDSN = false;
+      rv = m_identity->GetRequestDSN(&requestDSN);
+      NS_ENSURE_SUCCESS(rv, rv);
+      rv = composeFields->SetDSN(requestDSN);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      bool attachVCard;
+      rv = m_identity->GetAttachVCard(&attachVCard);
+      NS_ENSURE_SUCCESS(rv, rv);
+      rv = composeFields->SetAttachVCard(attachVCard);
+      NS_ENSURE_SUCCESS(rv, rv);
+    }
+  }
+
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+  aParams->GetSendListener(getter_AddRefs(externalSendListener));
+  if(externalSendListener)
+    AddMsgSendListener( externalSendListener );
+
+  nsCString smtpPassword;
+  aParams->GetSmtpPassword(getter_Copies(smtpPassword));
+  mSmtpPassword = smtpPassword;
+
+  aParams->GetHtmlToQuote(mHtmlToQuote);
+
+  if (aDocShell)
+  {
+    mDocShell = aDocShell;
+    // register the compose object with the compose service
+    rv = composeService->RegisterComposeDocShell(aDocShell, this);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+  return CreateMessage(originalMsgURI.get(), type, composeFields);
+}
+
+nsresult nsMsgCompose::SetDocumentCharset(const char *aCharset)
+{
+  NS_ENSURE_TRUE(m_compFields && m_editor, NS_ERROR_NOT_INITIALIZED);
+
+  // Set charset, this will be used for the MIME charset labeling.
+  m_compFields->SetCharacterSet(aCharset);
+
+  // notify the change to editor
+  nsCString charset;
+  if (aCharset)
+    charset = nsDependentCString(aCharset);
+  if (m_editor)
+    m_editor->SetDocumentCharacterSet(charset);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::RegisterStateListener(nsIMsgComposeStateListener *aStateListener)
+{
+  NS_ENSURE_ARG_POINTER(aStateListener);
+
+  return mStateListeners.AppendElement(aStateListener) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::UnregisterStateListener(nsIMsgComposeStateListener *aStateListener)
+{
+  NS_ENSURE_ARG_POINTER(aStateListener);
+
+  return mStateListeners.RemoveElement(aStateListener) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+// Added to allow easier use of the nsIMsgSendListener
+NS_IMETHODIMP nsMsgCompose::AddMsgSendListener( nsIMsgSendListener *aMsgSendListener )
+{
+  NS_ENSURE_ARG_POINTER(aMsgSendListener);
+  return mExternalSendListeners.AppendElement(aMsgSendListener) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsMsgCompose::RemoveMsgSendListener( nsIMsgSendListener *aMsgSendListener )
+{
+  NS_ENSURE_ARG_POINTER(aMsgSendListener);
+  return mExternalSendListeners.RemoveElement(aMsgSendListener) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::SendMsgToServer(MSG_DeliverMode deliverMode, nsIMsgIdentity *identity,
+                              const char *accountKey)
+{
+  nsresult rv = NS_OK;
+
+  // clear saved message id if sending, so we don't send out the same message-id.
+  if (deliverMode == nsIMsgCompDeliverMode::Now ||
+      deliverMode == nsIMsgCompDeliverMode::Later ||
+      deliverMode == nsIMsgCompDeliverMode::Background)
+    m_compFields->SetMessageId("");
+
+  if (m_compFields && identity)
+  {
+    // Pref values are supposed to be stored as UTF-8, so no conversion
+    nsCString email;
+    nsString fullName;
+    nsString organization;
+
+    identity->GetEmail(email);
+    identity->GetFullName(fullName);
+    identity->GetOrganization(organization);
+
+    const char* pFrom = m_compFields->GetFrom();
+    if (!pFrom || !*pFrom)
+    {
+      nsCString sender;
+      MakeMimeAddress(NS_ConvertUTF16toUTF8(fullName), email, sender);
+      m_compFields->SetFrom(sender.IsEmpty() ? email.get() : sender.get());
+    }
+
+    m_compFields->SetOrganization(organization);
+
+    // We need an nsIMsgSend instance to send the message. Allow extensions
+    // to override the default SMTP sender by observing mail-set-sender.
+    mMsgSend = nullptr;
+    mDeliverMode = deliverMode;  // save for possible access by observer.
+
+    // Allow extensions to specify an outgoing server.
+    nsCOMPtr<nsIObserverService> observerService =
+      mozilla::services::GetObserverService();
+    NS_ENSURE_STATE(observerService);
+
+    // Assemble a string with sending parameters.
+    nsAutoString sendParms;
+
+    // First parameter: account key. This may be null.
+    sendParms.AppendASCII(accountKey && *accountKey ? accountKey : "");
+    sendParms.AppendLiteral(",");
+
+    // Second parameter: deliverMode.
+    sendParms.AppendInt(deliverMode);
+    sendParms.AppendLiteral(",");
+
+    // Third parameter: identity (as identity key).
+    nsAutoCString identityKey;
+    identity->GetKey(identityKey);
+    sendParms.AppendASCII(identityKey.get());
+
+    observerService->NotifyObservers(
+      NS_ISUPPORTS_CAST(nsIMsgCompose*, this),
+      "mail-set-sender",
+      sendParms.get());
+
+    if (!mMsgSend)
+      mMsgSend = do_CreateInstance(NS_MSGSEND_CONTRACTID);
+
+    if (mMsgSend)
+    {
+      nsCString bodyString(m_compFields->GetBody());
+
+      // Create the listener for the send operation...
+      nsCOMPtr<nsIMsgComposeSendListener> composeSendListener = do_CreateInstance(NS_MSGCOMPOSESENDLISTENER_CONTRACTID);
+      if (!composeSendListener)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+      // right now, AutoSaveAsDraft is identical to SaveAsDraft as
+      // far as the msg send code is concerned. This way, we don't have
+      // to add an nsMsgDeliverMode for autosaveasdraft, and add cases for
+      // it in the msg send code.
+      if (deliverMode == nsIMsgCompDeliverMode::AutoSaveAsDraft)
+        deliverMode = nsIMsgCompDeliverMode::SaveAsDraft;
+
+      RefPtr<nsIMsgCompose> msgCompose(this);
+      composeSendListener->SetMsgCompose(msgCompose);
+      composeSendListener->SetDeliverMode(deliverMode);
+
+      if (mProgress)
+      {
+        nsCOMPtr<nsIWebProgressListener> progressListener = do_QueryInterface(composeSendListener);
+        mProgress->RegisterListener(progressListener);
+      }
+
+      // If we are composing HTML, then this should be sent as
+      // multipart/related which means we pass the editor into the
+      // backend...if not, just pass nullptr
+      //
+      nsCOMPtr<nsIMsgSendListener> sendListener = do_QueryInterface(composeSendListener);
+      rv = mMsgSend->CreateAndSendMessage(
+                    m_composeHTML ? m_editor.get() : nullptr,
+                    identity,
+                    accountKey,
+                    m_compFields,
+                    false,
+                    false,
+                    (nsMsgDeliverMode)deliverMode,
+                    nullptr,
+                    m_composeHTML ? TEXT_HTML : TEXT_PLAIN,
+                    bodyString,
+                    nullptr,
+                    nullptr,
+                    m_window,
+                    mProgress,
+                    sendListener,
+                    mSmtpPassword.get(),
+                    mOriginalMsgURI,
+                    mType);
+    }
+    else
+        rv = NS_ERROR_FAILURE;
+  }
+  else
+    rv = NS_ERROR_NOT_INITIALIZED;
+
+  if (NS_FAILED(rv))
+    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, rv);
+
+  return rv;
+}
+
+NS_IMETHODIMP nsMsgCompose::SendMsg(MSG_DeliverMode deliverMode, nsIMsgIdentity *identity, const char *accountKey, nsIMsgWindow *aMsgWindow, nsIMsgProgress *progress)
+{
+  NS_ENSURE_TRUE(m_compFields, NS_ERROR_NOT_INITIALIZED);
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIPrompt> prompt;
+
+  // i'm assuming the compose window is still up at this point...
+  if (m_window) {
+    nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(m_window);
+    window->GetPrompter(getter_AddRefs(prompt));
+  }
+
+  // Set content type based on which type of compose window we had.
+  nsString contentType = (m_composeHTML) ? NS_LITERAL_STRING("text/html"):
+                                           NS_LITERAL_STRING("text/plain");
+  nsString msgBody;
+  if (m_editor)
+  {
+    // Reset message body previously stored in the compose fields
+    // There is 2 nsIMsgCompFields::SetBody() functions using a pointer as argument,
+    // therefore a casting is required.
+    m_compFields->SetBody((const char *)nullptr);
+
+    const char *charset = m_compFields->GetCharacterSet();
+
+    uint32_t flags = nsIDocumentEncoder::OutputCRLineBreak |
+                     nsIDocumentEncoder::OutputLFLineBreak;
+
+    if (m_composeHTML) {
+      flags |= nsIDocumentEncoder::OutputFormatted |
+               nsIDocumentEncoder::OutputDisallowLineBreaking;
+    } else {
+      bool flowed, delsp, formatted, disallowBreaks;
+      GetSerialiserFlags(charset, &flowed, &delsp, &formatted, &disallowBreaks);
+      if (flowed)
+        flags |= nsIDocumentEncoder::OutputFormatFlowed;
+      if (delsp)
+        flags |= nsIDocumentEncoder::OutputFormatDelSp;
+      if (formatted)
+        flags |= nsIDocumentEncoder::OutputFormatted;
+      if (disallowBreaks)
+        flags |= nsIDocumentEncoder::OutputDisallowLineBreaking;
+      // Don't lose NBSP in the plain text encoder.
+      flags |= nsIDocumentEncoder::OutputPersistNBSP;
+    }
+    rv = m_editor->OutputToString(contentType, flags, msgBody);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+  else
+  {
+    m_compFields->GetBody(msgBody);
+  }
+  if (!msgBody.IsEmpty())
+  {
+    // Convert body to mail charset
+    nsCString outCString;
+    rv = nsMsgI18NConvertFromUnicode(m_compFields->GetCharacterSet(),
+      msgBody, outCString, false, true);
+    bool isAsciiOnly = NS_IsAscii(outCString.get()) &&
+      !nsMsgI18Nstateful_charset(m_compFields->GetCharacterSet());
+    if (m_compFields->GetForceMsgEncoding())
+      isAsciiOnly = false;
+    if (NS_SUCCEEDED(rv) && !outCString.IsEmpty())
+    {
+      // If the body contains characters outside the repertoire of the current
+      // charset, just convert to UTF-8 and be done with it
+      // unless disable_fallback_to_utf8 is set for this charset.
+      if (NS_ERROR_UENC_NOMAPPING == rv)
+      {
+        bool needToCheckCharset;
+        m_compFields->GetNeedToCheckCharset(&needToCheckCharset);
+        if (needToCheckCharset)
+        {
+          bool disableFallback = false;
+          nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+          if (prefBranch)
+          {
+            nsCString prefName("mailnews.disable_fallback_to_utf8.");
+            prefName.Append(m_compFields->GetCharacterSet());
+            prefBranch->GetBoolPref(prefName.get(), &disableFallback);
+          }
+          if (!disableFallback)
+          {
+            CopyUTF16toUTF8(msgBody, outCString);
+            m_compFields->SetCharacterSet("UTF-8");
+            SetDocumentCharset("UTF-8");
+          }
+        }
+      }
+      m_compFields->SetBodyIsAsciiOnly(isAsciiOnly);
+      m_compFields->SetBody(outCString.get());
+    }
+    else
+    {
+      m_compFields->SetBody(NS_ConvertUTF16toUTF8(msgBody).get());
+      m_compFields->SetCharacterSet("UTF-8");
+      SetDocumentCharset("UTF-8");
+    }
+  }
+
+  // Let's open the progress dialog
+  if (progress)
+  {
+    mProgress = progress;
+
+    if (deliverMode != nsIMsgCompDeliverMode::AutoSaveAsDraft)
+    {
+      nsAutoString msgSubject;
+      m_compFields->GetSubject(msgSubject);
+
+      bool showProgress = false;
+      nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
+      if (prefBranch)
+      {
+        prefBranch->GetBoolPref("mailnews.show_send_progress", &showProgress);
+        if (showProgress)
+        {
+          nsCOMPtr<nsIMsgComposeProgressParams> params = do_CreateInstance(NS_MSGCOMPOSEPROGRESSPARAMS_CONTRACTID, &rv);
+          if (NS_FAILED(rv) || !params)
+            return NS_ERROR_FAILURE;
+
+          params->SetSubject(msgSubject.get());
+          params->SetDeliveryMode(deliverMode);
+
+          mProgress->OpenProgressDialog(m_window, aMsgWindow,
+                                        "chrome://messenger/content/messengercompose/sendProgress.xul",
+                                        false, params);
+        }
+      }
+    }
+
+    mProgress->OnStateChange(nullptr, nullptr, nsIWebProgressListener::STATE_START, NS_OK);
+  }
+
+  bool attachVCard = false;
+  m_compFields->GetAttachVCard(&attachVCard);
+
+  if (attachVCard && identity &&
+      (deliverMode == nsIMsgCompDeliverMode::Now ||
+       deliverMode == nsIMsgCompDeliverMode::Later ||
+       deliverMode == nsIMsgCompDeliverMode::Background))
+  {
+      nsCString escapedVCard;
+      // make sure, if there is no card, this returns an empty string, or NS_ERROR_FAILURE
+      rv = identity->GetEscapedVCard(escapedVCard);
+
+      if (NS_SUCCEEDED(rv) && !escapedVCard.IsEmpty())
+      {
+          nsCString vCardUrl;
+          vCardUrl = "data:text/x-vcard;charset=utf-8;base64,";
+          nsCString unescapedData;
+          MsgUnescapeString(escapedVCard, 0, unescapedData);
+          char *result = PL_Base64Encode(unescapedData.get(), 0, nullptr);
+          vCardUrl += result;
+          PR_Free(result);
+
+          nsCOMPtr<nsIMsgAttachment> attachment = do_CreateInstance(NS_MSGATTACHMENT_CONTRACTID, &rv);
+          if (NS_SUCCEEDED(rv) && attachment)
+          {
+              // [comment from 4.x]
+              // Send the vCard out with a filename which distinguishes this user. e.g. jsmith.vcf
+              // The main reason to do this is for interop with Eudora, which saves off
+              // the attachments separately from the message body
+              nsCString userid;
+              (void)identity->GetEmail(userid);
+              int32_t index = userid.FindChar('@');
+              if (index != kNotFound)
+                  userid.SetLength(index);
+
+              if (userid.IsEmpty())
+                  attachment->SetName(NS_LITERAL_STRING("vcard.vcf"));
+              else
+              {
+                  // Replace any dot with underscore to stop vCards
+                  // generating false positives with some heuristic scanners
+                  MsgReplaceChar(userid, '.', '_');
+                  userid.AppendLiteral(".vcf");
+                  attachment->SetName(NS_ConvertASCIItoUTF16(userid));
+              }
+
+              attachment->SetUrl(vCardUrl);
+              m_compFields->AddAttachment(attachment);
+          }
+      }
+  }
+
+  // Save the identity being sent for later use.
+  m_identity = identity;
+
+  rv = SendMsgToServer(deliverMode, identity, accountKey);
+  if (NS_FAILED(rv))
+  {
+    nsCOMPtr<nsIMsgSendReport> sendReport;
+    if (mMsgSend)
+      mMsgSend->GetSendReport(getter_AddRefs(sendReport));
+    if (sendReport)
+    {
+      nsresult theError;
+      sendReport->DisplayReport(prompt, true, true, &theError);
+    }
+    else
+    {
+      /* If we come here it's because we got an error before we could intialize a
+         send report! Let's try our best...
+      */
+      switch (deliverMode)
+      {
+        case nsIMsgCompDeliverMode::Later:
+          nsMsgDisplayMessageByName(prompt, u"unableToSendLater");
+          break;
+        case nsIMsgCompDeliverMode::AutoSaveAsDraft:
+        case nsIMsgCompDeliverMode::SaveAsDraft:
+          nsMsgDisplayMessageByName(prompt, u"unableToSaveDraft");
+          break;
+        case nsIMsgCompDeliverMode::SaveAsTemplate:
+          nsMsgDisplayMessageByName(prompt, u"unableToSaveTemplate");
+          break;
+
+        default:
+          nsMsgDisplayMessageByName(prompt, u"sendFailed");
+          break;
+      }
+    }
+
+    if (progress)
+      progress->CloseProgressDialog(true);
+  }
+
+  return rv;
+}
+
+/* attribute boolean deleteDraft */
+NS_IMETHODIMP nsMsgCompose::GetDeleteDraft(bool *aDeleteDraft)
+{
+  NS_ENSURE_ARG_POINTER(aDeleteDraft);
+  *aDeleteDraft = mDeleteDraft;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::SetDeleteDraft(bool aDeleteDraft)
+{
+  mDeleteDraft = aDeleteDraft;
+  return NS_OK;
+}
+
+bool nsMsgCompose::IsLastWindow()
+{
+  nsresult rv;
+  bool more;
+  nsCOMPtr<nsIWindowMediator> windowMediator =
+              do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv);
+  if (NS_SUCCEEDED(rv))
+  {
+    nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
+    rv = windowMediator->GetEnumerator(nullptr,
+               getter_AddRefs(windowEnumerator));
+    if (NS_SUCCEEDED(rv))
+    {
+      nsCOMPtr<nsISupports> isupports;
+
+      if (NS_SUCCEEDED(windowEnumerator->GetNext(getter_AddRefs(isupports))))
+        if (NS_SUCCEEDED(windowEnumerator->HasMoreElements(&more)))
+          return !more;
+    }
+  }
+  return true;
+}
+
+NS_IMETHODIMP nsMsgCompose::CloseWindow(void)
+{
+  nsresult rv;
+
+  nsCOMPtr<nsIMsgComposeService> composeService = do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv,rv);
+
+  // unregister the compose object with the compose service
+  rv = composeService->UnregisterComposeDocShell(mDocShell);
+  NS_ENSURE_SUCCESS(rv, rv);
+  mDocShell = nullptr;
+
+  // ensure that the destructor of nsMsgSend is invoked to remove
+  // temporary files.
+  mMsgSend = nullptr;
+
+  //We are going away for real, we need to do some clean up first
+  if (m_baseWindow)
+  {
+    if (m_editor)
+    {
+      // The editor will be destroyed during the close window.
+      // Set it to null to be sure we won't use it anymore.
+      m_editor = nullptr;
+    }
+    nsIBaseWindow * window = m_baseWindow;
+    m_baseWindow = nullptr;
+    rv = window->Destroy();
+  }
+
+  m_window = nullptr;
+  return rv;
+}
+
+nsresult nsMsgCompose::Abort()
+{
+  if (mMsgSend)
+    mMsgSend->Abort();
+
+  if (mProgress)
+    mProgress->CloseProgressDialog(true);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetEditor(nsIEditor * *aEditor)
+{
+  NS_IF_ADDREF(*aEditor = m_editor);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::SetEditor(nsIEditor *aEditor)
+{
+  m_editor = aEditor;
+  return NS_OK;
+}
+
+static nsresult fixCharset(nsCString &aCharset)
+{
+  // No matter what, we should block x-windows-949 (our internal name)
+  // from being used for outgoing emails (bug 234958).
+  if (aCharset.Equals("x-windows-949", nsCaseInsensitiveCStringComparator()))
+    aCharset = "EUC-KR";
+
+  // Convert to a canonical charset name.
+  // Bug 1297118 will revisit this call site.
+  nsresult rv;
+  nsCOMPtr<nsICharsetConverterManager> ccm =
+    do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString charset(aCharset);
+  rv = ccm->GetCharsetAlias(charset.get(), aCharset);
+
+  // Don't accept UTF-16 ever. UTF-16 should never be selected as an
+  // outgoing encoding for e-mail. MIME can't handle those messages
+  // encoded in ASCII-incompatible encodings.
+  if (NS_FAILED(rv) ||
+      StringBeginsWith(aCharset, NS_LITERAL_CSTRING("UTF-16"))) {
+    aCharset.AssignLiteral("UTF-8");
+  }
+  return NS_OK;
+}
+
+// This used to be called BEFORE editor was created
+//  (it did the loadUrl that triggered editor creation)
+// It is called from JS after editor creation
+//  (loadUrl is done in JS)
+NS_IMETHODIMP nsMsgCompose::InitEditor(nsIEditor* aEditor, mozIDOMWindowProxy* aContentWindow)
+{
+  NS_ENSURE_ARG_POINTER(aEditor);
+  NS_ENSURE_ARG_POINTER(aContentWindow);
+  nsresult rv;
+
+  m_editor = aEditor;
+
+  nsAutoCString msgCharSet(m_compFields->GetCharacterSet());
+  rv = fixCharset(msgCharSet);
+  NS_ENSURE_SUCCESS(rv, rv);
+  m_compFields->SetCharacterSet(msgCharSet.get());
+  m_editor->SetDocumentCharacterSet(msgCharSet);
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aContentWindow);
+
+  nsIDocShell *docShell = window->GetDocShell();
+  NS_ENSURE_TRUE(docShell, NS_ERROR_UNEXPECTED);
+
+  nsCOMPtr<nsIContentViewer> childCV;
+  NS_ENSURE_SUCCESS(docShell->GetContentViewer(getter_AddRefs(childCV)), NS_ERROR_FAILURE);
+  if (childCV)
+  {
+    // SetForceCharacterSet will complain about "UTF-7" or "x-mac-croatian"
+    // (see test-charset-edit.js), but we deal with this elsewhere.
+    rv = childCV->SetForceCharacterSet(msgCharSet);
+    NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "SetForceCharacterSet() failed");
+  }
+
+  // This is what used to be done in mDocumentListener,
+  //   nsMsgDocumentStateListener::NotifyDocumentCreated()
+  bool quotingToFollow = false;
+  GetQuotingToFollow(&quotingToFollow);
+  if (quotingToFollow)
+    return BuildQuotedMessageAndSignature();
+  else
+  {
+    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeFieldsReady, NS_OK);
+    rv = BuildBodyMessageAndSignature();
+    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeBodyReady, NS_OK);
+    return rv;
+  }
+}
+
+NS_IMETHODIMP nsMsgCompose::GetBodyRaw(nsACString& aBodyRaw)
+{
+  aBodyRaw.Assign((char *)m_compFields->GetBody());
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::GetBodyModified(bool * modified)
+{
+  nsresult rv;
+
+  if (! modified)
+    return NS_ERROR_NULL_POINTER;
+
+  *modified = true;
+
+  if (m_editor)
+  {
+    rv = m_editor->GetDocumentModified(modified);
+    if (NS_FAILED(rv))
+      *modified = true;
+  }
+
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::SetBodyModified(bool modified)
+{
+  nsresult  rv = NS_OK;
+
+  if (m_editor)
+  {
+    if (modified)
+    {
+      int32_t  modCount = 0;
+      m_editor->GetModificationCount(&modCount);
+      if (modCount == 0)
+        m_editor->IncrementModificationCount(1);
+    }
+    else
+      m_editor->ResetModificationCount();
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::GetDomWindow(mozIDOMWindowProxy * *aDomWindow)
+{
+  NS_IF_ADDREF(*aDomWindow = m_window);
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::GetCompFields(nsIMsgCompFields * *aCompFields)
+{
+  *aCompFields = (nsIMsgCompFields*)m_compFields;
+  NS_IF_ADDREF(*aCompFields);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetComposeHTML(bool *aComposeHTML)
+{
+  *aComposeHTML = m_composeHTML;
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::GetWrapLength(int32_t *aWrapLength)
+{
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  if (NS_FAILED(rv)) return rv;
+
+  return prefBranch->GetIntPref("mailnews.wraplength", aWrapLength);
+}
+
+nsresult nsMsgCompose::CreateMessage(const char * originalMsgURI,
+                                     MSG_ComposeType type,
+                                     nsIMsgCompFields * compFields)
+{
+  nsresult rv = NS_OK;
+  mType = type;
+  mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_None;
+
+  mDeleteDraft = (type == nsIMsgCompType::Draft);
+  nsAutoCString msgUri(originalMsgURI);
+  bool fileUrl = StringBeginsWith(msgUri, NS_LITERAL_CSTRING("file:"));
+  int32_t typeIndex = msgUri.Find("type=application/x-message-display");
+  if (typeIndex != kNotFound && typeIndex > 0)
+  {
+    // Strip out type=application/x-message-display because it confuses libmime.
+    msgUri.Cut(typeIndex, sizeof("type=application/x-message-display"));
+    if (fileUrl) // we're dealing with an .eml file msg
+    {
+      // We have now removed the type from the uri. Make sure we don't have
+      // an uri with "&&" now. If we do, remove the second '&'.
+      if (msgUri.CharAt(typeIndex) == '&')
+        msgUri.Cut(typeIndex, 1);
+      // Remove possible trailing '?'.
+      if (msgUri.CharAt(msgUri.Length() - 1) == '?')
+        msgUri.Cut(msgUri.Length() - 1, 1);
+    }
+    else // we're dealing with a message/rfc822 attachment
+    {
+      // nsURLFetcher will check for "realtype=message/rfc822" and will set the
+      // content type to message/rfc822 in the forwarded message.
+      msgUri.Append("&realtype=message/rfc822");
+    }
+    originalMsgURI = msgUri.get();
+  }
+
+  if (compFields)
+  {
+    NS_IF_RELEASE(m_compFields);
+    m_compFields = reinterpret_cast<nsMsgCompFields*>(compFields);
+    NS_ADDREF(m_compFields);
+  }
+  else
+  {
+    m_compFields = new nsMsgCompFields();
+    if (m_compFields)
+      NS_ADDREF(m_compFields);
+    else
+      return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  if (m_identity && mType != nsIMsgCompType::Draft)
+  {
+    // Setup reply-to field.
+    nsCString replyTo;
+    m_identity->GetReplyTo(replyTo);
+    if (!replyTo.IsEmpty())
+    {
+      nsCString resultStr;
+      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetReplyTo()),
+                               replyTo, resultStr);
+      if (!resultStr.IsEmpty())
+      {
+        replyTo.Append(',');
+        replyTo.Append(resultStr);
+      }
+      m_compFields->SetReplyTo(replyTo.get());
+    }
+
+    // Setup auto-Cc field.
+    bool doCc;
+    m_identity->GetDoCc(&doCc);
+    if (doCc)
+    {
+      nsCString ccList;
+      m_identity->GetDoCcList(ccList);
+
+      nsCString resultStr;
+      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetCc()),
+                               ccList, resultStr);
+      if (!resultStr.IsEmpty())
+      {
+        ccList.Append(',');
+        ccList.Append(resultStr);
+      }
+      m_compFields->SetCc(ccList.get());
+    }
+
+    // Setup auto-Bcc field.
+    bool doBcc;
+    m_identity->GetDoBcc(&doBcc);
+    if (doBcc)
+    {
+      nsCString bccList;
+      m_identity->GetDoBccList(bccList);
+
+      nsCString resultStr;
+      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetBcc()),
+                               bccList, resultStr);
+      if (!resultStr.IsEmpty())
+      {
+        bccList.Append(',');
+        bccList.Append(resultStr);
+      }
+      m_compFields->SetBcc(bccList.get());
+    }
+  }
+
+  if (mType == nsIMsgCompType::Draft)
+  {
+    nsCString curDraftIdURL;
+    rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));
+    NS_ASSERTION(NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty(), "CreateMessage can't get draft id");
+
+    // Skip if no draft id (probably a new draft msg).
+    if (NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty())
+    {
+      nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
+      rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
+      NS_ASSERTION(NS_SUCCEEDED(rv), "CreateMessage can't get msg header DB interface pointer.");
+      if (msgDBHdr)
+      {
+        nsCString queuedDisposition;
+        msgDBHdr->GetStringProperty(QUEUED_DISPOSITION_PROPERTY, getter_Copies(queuedDisposition));
+        // We need to retrieve the original URI from the database so we can
+        // set the disposition flags correctly if the draft is a reply or forwarded message.
+        nsCString originalMsgURIfromDB;
+        msgDBHdr->GetStringProperty(ORIG_URI_PROPERTY, getter_Copies(originalMsgURIfromDB));
+        mOriginalMsgURI = originalMsgURIfromDB;
+        if (!queuedDisposition.IsEmpty())
+        {
+          if (queuedDisposition.Equals("replied"))
+             mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_Replied;
+          else if (queuedDisposition.Equals("forward"))
+             mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_Forwarded;
+        }
+      }
+    }
+  }
+
+  // If we don't have an original message URI, nothing else to do...
+  if (!originalMsgURI || *originalMsgURI == 0)
+    return NS_OK;
+
+  // store the original message URI so we can extract it after we send the message to properly
+  // mark any disposition flags like replied or forwarded on the message.
+  if (mOriginalMsgURI.IsEmpty())
+    mOriginalMsgURI = originalMsgURI;
+
+  nsCOMPtr<nsIPrefBranch> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // "Forward inline" and "Reply with template" processing.
+  // Note the early return at the end of the block.
+  if (type == nsIMsgCompType::ForwardInline ||
+      type == nsIMsgCompType::ReplyWithTemplate)
+  {
+    // Use charset set up in the compose fields by MIME unless we should
+    // use the default charset.
+    bool replyInDefault = false;
+    prefs->GetBoolPref("mailnews.reply_in_default_charset",
+                        &replyInDefault);
+    // Use send_default_charset if reply_in_default_charset is on.
+    if (replyInDefault)
+    {
+      nsString str;
+      nsCString charset;
+      NS_GetLocalizedUnicharPreferenceWithDefault(prefs, "mailnews.send_default_charset",
+                                                  EmptyString(), str);
+      if (!str.IsEmpty())
+      {
+        LossyCopyUTF16toASCII(str, charset);
+        m_compFields->SetCharacterSet(charset.get());
+        mAnswerDefaultCharset = true;
+      }
+    }
+
+    // We want to treat this message as a reference too
+    nsCOMPtr<nsIMsgDBHdr> msgHdr;
+    rv = GetMsgDBHdrFromURI(originalMsgURI, getter_AddRefs(msgHdr));
+    if (NS_SUCCEEDED(rv))
+    {
+      nsAutoCString messageId;
+      msgHdr->GetMessageId(getter_Copies(messageId));
+
+      nsAutoCString reference;
+      // When forwarding we only use the original message for "References:" -
+      // recipients don't have the other messages anyway.
+      // For reply with template we want to preserve all the references.
+      if (type == nsIMsgCompType::ReplyWithTemplate)
+      {
+        uint16_t numReferences = 0;
+        msgHdr->GetNumReferences(&numReferences);
+        for (int32_t i = 0; i < numReferences; i++)
+        {
+          nsAutoCString ref;
+          msgHdr->GetStringReference(i, ref);
+          if (!ref.IsEmpty())
+          {
+            reference.AppendLiteral("<");
+            reference.Append(ref);
+            reference.AppendLiteral("> ");
+          }
+        }
+        reference.Trim(" ", false, true);
+      }
+      msgHdr->GetMessageId(getter_Copies(messageId));
+      reference.AppendLiteral("<");
+      reference.Append(messageId);
+      reference.AppendLiteral(">");
+      m_compFields->SetReferences(reference.get());
+    }
+
+    // Early return for "Forward inline" and "Reply with template" processing.
+    return NS_OK;
+  }
+
+  // All other processing.
+  char *uriList = PL_strdup(originalMsgURI);
+  if (!uriList)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  // Resulting charset for this message.
+  nsCString charset;
+
+  // Check for the charset of the last displayed message, it
+  // will be used for quoting and as override.
+  nsCString windowCharset;
+  mCharsetOverride = false;
+  mAnswerDefaultCharset = false;
+  GetTopmostMsgWindowCharacterSet(windowCharset, &mCharsetOverride);
+  if (!windowCharset.IsEmpty()) {
+    // Although the charset in which to send the message might change,
+    // the original message will be parsed for quoting using the charset it is
+    // now displayed with.
+    mQuoteCharset = windowCharset;
+
+    if (mCharsetOverride) {
+      // Use override charset.
+      charset = windowCharset;
+    }
+  }
+
+  // Note the following:
+  // LoadDraftOrTemplate() is run in nsMsgComposeService::OpenComposeWindow()
+  // for five compose types: ForwardInline, ReplyWithTemplate (both covered
+  // in the code block above) and Draft, Template and Redirect. For these
+  // compose types, the charset is already correct (incl. MIME-applied override)
+  // unless the default charset should be used.
+
+  bool isFirstPass = true;
+  char *uri = uriList;
+  char *nextUri;
+  do
+  {
+    nextUri = strstr(uri, "://");
+    if (nextUri)
+    {
+      // look for next ://, and then back up to previous ','
+      nextUri = strstr(nextUri + 1, "://");
+      if (nextUri)
+      {
+        *nextUri = '\0';
+        char *saveNextUri = nextUri;
+        nextUri = strrchr(uri, ',');
+        if (nextUri)
+          *nextUri = '\0';
+        *saveNextUri = ':';
+      }
+    }
+
+    nsCOMPtr <nsIMsgDBHdr> msgHdr;
+    if (mOrigMsgHdr)
+      msgHdr = mOrigMsgHdr;
+    else
+    {
+      rv = GetMsgDBHdrFromURI(uri, getter_AddRefs(msgHdr));
+      NS_ENSURE_SUCCESS(rv,rv);
+    }
+    if (msgHdr)
+    {
+      nsCString decodedCString;
+
+      bool replyInDefault = false;
+      prefs->GetBoolPref("mailnews.reply_in_default_charset",
+                          &replyInDefault);
+      // Use send_default_charset if reply_in_default_charset is on.
+      if (replyInDefault)
+      {
+        nsString str;
+        NS_GetLocalizedUnicharPreferenceWithDefault(prefs, "mailnews.send_default_charset",
+                                                    EmptyString(), str);
+        if (!str.IsEmpty()) {
+          LossyCopyUTF16toASCII(str, charset);
+          mAnswerDefaultCharset = true;
+        }
+      }
+
+      // Set the charset we determined, if any, in the comp fields.
+      // For replies, the charset will be set after processing the message
+      // through MIME in QuotingOutputStreamListener::OnStopRequest().
+      if (isFirstPass && !charset.IsEmpty())
+        m_compFields->SetCharacterSet(charset.get());
+
+      nsString subject;
+      rv = msgHdr->GetMime2DecodedSubject(subject);
+      if (NS_FAILED(rv)) return rv;
+
+      // Check if (was: is present in the subject
+      int32_t wasOffset = subject.RFind(NS_LITERAL_STRING(" (was:"));
+      bool strip = true;
+
+      if (wasOffset >= 0) {
+        // Check the number of references, to check if was: should be stripped
+        // First, assume that it should be stripped; the variable will be set to
+        // false later if stripping should not happen.
+        uint16_t numRef;
+        msgHdr->GetNumReferences(&numRef);
+        if (numRef) {
+          // If there are references, look for the first message in the thread
+          // firstly, get the database via the folder
+          nsCOMPtr<nsIMsgFolder> folder;
+          msgHdr->GetFolder(getter_AddRefs(folder));
+          if (folder) {
+            nsCOMPtr<nsIMsgDatabase> db;
+            folder->GetMsgDatabase(getter_AddRefs(db));
+
+            if (db) {
+              nsAutoCString reference;
+              msgHdr->GetStringReference(0, reference);
+
+              nsCOMPtr<nsIMsgDBHdr> refHdr;
+              db->GetMsgHdrForMessageID(reference.get(), getter_AddRefs(refHdr));
+
+              if (refHdr) {
+                nsCString refSubject;
+                rv = refHdr->GetSubject(getter_Copies(refSubject));
+                if (NS_SUCCEEDED(rv)) {
+                  if (refSubject.Find(" (was:") >= 0)
+                    strip = false;
+                }
+              }
+            }
+          }
+        }
+        else
+          strip = false;
+      }
+
+      if (strip && wasOffset >= 0) {
+        // Strip off the "(was: old subject)" part
+        subject.Assign(Substring(subject, 0, wasOffset));
+      }
+
+      switch (type)
+      {
+        default: break;
+        case nsIMsgCompType::Reply :
+        case nsIMsgCompType::ReplyAll:
+        case nsIMsgCompType::ReplyToList:
+        case nsIMsgCompType::ReplyToGroup:
+        case nsIMsgCompType::ReplyToSender:
+        case nsIMsgCompType::ReplyToSenderAndGroup:
+          {
+            if (!isFirstPass)       // safeguard, just in case...
+            {
+              PR_Free(uriList);
+              return rv;
+            }
+            mQuotingToFollow = true;
+
+            subject.Insert(NS_LITERAL_STRING("Re: "), 0);
+            m_compFields->SetSubject(subject);
+
+            // Setup quoting callbacks for later...
+            mWhatHolder = 1;
+            break;
+          }
+        case nsIMsgCompType::ForwardAsAttachment:
+          {
+            // Add the forwarded message in the references, first
+            nsAutoCString messageId;
+            msgHdr->GetMessageId(getter_Copies(messageId));
+            if (isFirstPass)
+            {
+              nsAutoCString reference;
+              reference.Append(NS_LITERAL_CSTRING("<"));
+              reference.Append(messageId);
+              reference.Append(NS_LITERAL_CSTRING(">"));
+              m_compFields->SetReferences(reference.get());
+            }
+            else
+            {
+              nsAutoCString references;
+              m_compFields->GetReferences(getter_Copies(references));
+              references.Append(NS_LITERAL_CSTRING(" <"));
+              references.Append(messageId);
+              references.Append(NS_LITERAL_CSTRING(">"));
+              m_compFields->SetReferences(references.get());
+            }
+
+            uint32_t flags;
+
+            msgHdr->GetFlags(&flags);
+            if (flags & nsMsgMessageFlags::HasRe)
+              subject.Insert(NS_LITERAL_STRING("Re: "), 0);
+
+            // Setup quoting callbacks for later...
+            mQuotingToFollow = false;  //We don't need to quote the original message.
+            nsCOMPtr<nsIMsgAttachment> attachment = do_CreateInstance(NS_MSGATTACHMENT_CONTRACTID, &rv);
+            if (NS_SUCCEEDED(rv) && attachment)
+            {
+              bool addExtension = true;
+              nsString sanitizedSubj;
+              prefs->GetBoolPref("mail.forward_add_extension", &addExtension);
+
+              // copy subject string to sanitizedSubj, use default if empty
+              if (subject.IsEmpty())
+              {
+                nsresult rv;
+                nsCOMPtr<nsIStringBundleService> bundleService =
+                  mozilla::services::GetStringBundleService();
+                NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+                nsCOMPtr<nsIStringBundle> composeBundle;
+                rv = bundleService->CreateBundle("chrome://messenger/locale/messengercompose/composeMsgs.properties",
+                                                 getter_AddRefs(composeBundle));
+                NS_ENSURE_SUCCESS(rv, rv);
+                composeBundle->GetStringFromName(u"messageAttachmentSafeName",
+                                                 getter_Copies(sanitizedSubj));
+              }
+              else
+                sanitizedSubj.Assign(subject);
+
+              // set the file size
+              uint32_t messageSize;
+              msgHdr->GetMessageSize(&messageSize);
+              attachment->SetSize(messageSize);
+
+              // change all '.' to '_'  see bug #271211
+              MsgReplaceChar(sanitizedSubj, ".", '_');
+              if (addExtension)
+                sanitizedSubj.AppendLiteral(".eml");
+              attachment->SetName(sanitizedSubj);
+              attachment->SetUrl(nsDependentCString(uri));
+              m_compFields->AddAttachment(attachment);
+            }
+
+            if (isFirstPass)
+            {
+              nsCString fwdPrefix;
+              prefs->GetCharPref("mail.forward_subject_prefix", getter_Copies(fwdPrefix));
+              if (!fwdPrefix.IsEmpty())
+              {
+                nsString unicodeFwdPrefix;
+                CopyUTF8toUTF16(fwdPrefix, unicodeFwdPrefix);
+                unicodeFwdPrefix.AppendLiteral(": ");
+                subject.Insert(unicodeFwdPrefix, 0);
+              }
+              else
+              {
+                subject.Insert(NS_LITERAL_STRING("Fwd: "), 0);
+              }
+              m_compFields->SetSubject(subject);
+            }
+            break;
+          }
+        case nsIMsgCompType::Redirect:
+          {
+            // For a redirect, set the Reply-To: header to what was in the original From: header...
+            nsAutoCString author;
+            msgHdr->GetAuthor(getter_Copies(author));
+            m_compFields->SetReplyTo(author.get());
+
+            // ... and empty out the various recipient headers
+            nsAutoString empty;
+            m_compFields->SetTo(empty);
+            m_compFields->SetCc(empty);
+            m_compFields->SetBcc(empty);
+            m_compFields->SetNewsgroups(empty);
+            m_compFields->SetFollowupTo(empty);
+            break;
+          }
+      }
+    }
+    isFirstPass = false;
+    uri = nextUri + 1;
+  }
+  while (nextUri);
+  PR_Free(uriList);
+  return rv;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetProgress(nsIMsgProgress **_retval)
+{
+  NS_ENSURE_ARG_POINTER(_retval);
+  *_retval = mProgress;
+  NS_IF_ADDREF(*_retval);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetMessageSend(nsIMsgSend **_retval)
+{
+  NS_ENSURE_ARG_POINTER(_retval);
+  *_retval = mMsgSend;
+  NS_IF_ADDREF(*_retval);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::SetMessageSend(nsIMsgSend* aMsgSend)
+{
+  mMsgSend = aMsgSend;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::ClearMessageSend()
+{
+  mMsgSend = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::SetCiteReference(nsString citeReference)
+{
+  mCiteReference = citeReference;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::SetSavedFolderURI(const char *folderURI)
+{
+  m_folderName = folderURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetSavedFolderURI(char ** folderURI)
+{
+  NS_ENSURE_ARG_POINTER(folderURI);
+  *folderURI = ToNewCString(m_folderName);
+  return (*folderURI) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetOriginalMsgURI(char ** originalMsgURI)
+{
+  NS_ENSURE_ARG_POINTER(originalMsgURI);
+  *originalMsgURI = ToNewCString(mOriginalMsgURI);
+  return (*originalMsgURI) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+////////////////////////////////////////////////////////////////////////////////////
+// THIS IS THE CLASS THAT IS THE STREAM CONSUMER OF THE HTML OUPUT
+// FROM LIBMIME. THIS IS FOR QUOTING
+////////////////////////////////////////////////////////////////////////////////////
+QuotingOutputStreamListener::~QuotingOutputStreamListener()
+{
+  if (mUnicodeConversionBuffer)
+    free(mUnicodeConversionBuffer);
+}
+
+QuotingOutputStreamListener::QuotingOutputStreamListener(const char * originalMsgURI,
+                                                         nsIMsgDBHdr *originalMsgHdr,
+                                                         bool quoteHeaders,
+                                                         bool headersOnly,
+                                                         nsIMsgIdentity *identity,
+                                                         nsIMsgQuote* msgQuote,
+                                                         bool charsetFixed,
+                                                         bool quoteOriginal,
+                                                         const nsACString& htmlToQuote)
+{
+  nsresult rv;
+  mQuoteHeaders = quoteHeaders;
+  mHeadersOnly = headersOnly;
+  mIdentity = identity;
+  mOrigMsgHdr = originalMsgHdr;
+  mUnicodeBufferCharacterLength = 0;
+  mUnicodeConversionBuffer = nullptr;
+  mQuoteOriginal = quoteOriginal;
+  mHtmlToQuote = htmlToQuote;
+  mQuote = msgQuote;
+  mCharsetFixed = charsetFixed;
+
+  if (!mHeadersOnly || !mHtmlToQuote.IsEmpty())
+  {
+    // Get header type, locale and strings from pref.
+    int32_t replyHeaderType;
+    nsAutoString replyHeaderLocale;
+    nsString replyHeaderAuthorWrote;
+    nsString replyHeaderOnDateAuthorWrote;
+    nsString replyHeaderAuthorWroteOnDate;
+    nsString replyHeaderOriginalmessage;
+    GetReplyHeaderInfo(&replyHeaderType,
+                       replyHeaderLocale,
+                       replyHeaderAuthorWrote,
+                       replyHeaderOnDateAuthorWrote,
+                       replyHeaderAuthorWroteOnDate,
+                       replyHeaderOriginalmessage);
+
+    // For the built message body...
+    if (originalMsgHdr && !quoteHeaders)
+    {
+      // Setup the cite information....
+      nsCString myGetter;
+      if (NS_SUCCEEDED(originalMsgHdr->GetMessageId(getter_Copies(myGetter))))
+      {
+        if (!myGetter.IsEmpty())
+        {
+          nsAutoCString buf;
+          mCiteReference.AssignLiteral("mid:");
+          MsgEscapeURL(myGetter,
+                       nsINetUtil::ESCAPE_URL_FILE_BASENAME | nsINetUtil::ESCAPE_URL_FORCED,
+                       buf);
+          mCiteReference.Append(NS_ConvertASCIItoUTF16(buf));
+        }
+      }
+
+      bool citingHeader; //Do we have a header needing to cite any info from original message?
+      bool headerDate;   //Do we have a header needing to cite date/time from original message?
+      switch (replyHeaderType)
+      {
+        case 0: // No reply header at all (actually the "---- original message ----" string,
+                // which is kinda misleading. TODO: Should there be a "really no header" option?
+          mCitePrefix.Assign(replyHeaderOriginalmessage);
+          citingHeader = false;
+          headerDate = false;
+          break;
+
+        case 2: // Insert both the original author and date in the reply header (date followed by author)
+          mCitePrefix.Assign(replyHeaderOnDateAuthorWrote);
+          citingHeader = true;
+          headerDate = true;
+          break;
+
+        case 3: // Insert both the original author and date in the reply header (author followed by date)
+          mCitePrefix.Assign(replyHeaderAuthorWroteOnDate);
+          citingHeader = true;
+          headerDate = true;
+          break;
+
+        case 4: // TODO bug 107884: implement a more featureful user specified header
+        case 1:
+        default: // Default is to only show the author.
+          mCitePrefix.Assign(replyHeaderAuthorWrote);
+          citingHeader = true;
+          headerDate = false;
+          break;
+      }
+
+      if (citingHeader)
+      {
+        int32_t placeholderIndex = kNotFound;
+
+        if (headerDate)
+        {
+          nsCOMPtr<nsIDateTimeFormat> dateFormatter = do_CreateInstance(NS_DATETIMEFORMAT_CONTRACTID, &rv);
+          if (NS_SUCCEEDED(rv))
+          {
+            PRTime originalMsgDate;
+            rv = originalMsgHdr->GetDate(&originalMsgDate);
+            if (NS_SUCCEEDED(rv))
+            {
+              nsCOMPtr<nsILocale> locale;
+              nsCOMPtr<nsILocaleService> localeService(do_GetService(NS_LOCALESERVICE_CONTRACTID));
+
+              // Format date using "mailnews.reply_header_locale", if empty then use application default locale.
+              if (!replyHeaderLocale.IsEmpty())
+                rv = localeService->NewLocale(replyHeaderLocale, getter_AddRefs(locale));
+              if (NS_SUCCEEDED(rv))
+              {
+                nsAutoString citeDatePart;
+                if ((placeholderIndex = mCitePrefix.Find("#2")) != kNotFound)
+                {
+                  rv = dateFormatter->FormatPRTime(locale,
+                                                   kDateFormatShort,
+                                                   kTimeFormatNone,
+                                                   originalMsgDate,
+                                                   citeDatePart);
+                  if (NS_SUCCEEDED(rv))
+                    mCitePrefix.Replace(placeholderIndex, 2, citeDatePart);
+                }
+                if ((placeholderIndex = mCitePrefix.Find("#3")) != kNotFound)
+                {
+                  rv = dateFormatter->FormatPRTime(locale,
+                                                   kDateFormatNone,
+                                                   kTimeFormatNoSeconds,
+                                                   originalMsgDate,
+                                                   citeDatePart);
+                  if (NS_SUCCEEDED(rv))
+                    mCitePrefix.Replace(placeholderIndex, 2, citeDatePart);
+                }
+              }
+            }
+          }
+        }
+
+        if ((placeholderIndex = mCitePrefix.Find("#1")) != kNotFound)
+        {
+          nsAutoCString author;
+          rv = originalMsgHdr->GetAuthor(getter_Copies(author));
+          if (NS_SUCCEEDED(rv))
+          {
+            nsAutoString citeAuthor;
+            ExtractName(EncodedHeader(author), citeAuthor);
+            mCitePrefix.Replace(placeholderIndex, 2, citeAuthor);
+          }
+        }
+      }
+    }
+
+    // This should not happen, but just in case.
+    if (mCitePrefix.IsEmpty())
+    {
+      mCitePrefix.AppendLiteral("\n\n");
+      mCitePrefix.Append(replyHeaderOriginalmessage);
+      mCitePrefix.AppendLiteral("\n");
+    }
+  }
+}
+
+/**
+ * The formatflowed parameter directs if formatflowed should be used in the conversion.
+ * format=flowed (RFC 2646) is a way to represent flow in a plain text mail, without
+ * disturbing the plain text.
+ */
+nsresult
+QuotingOutputStreamListener::ConvertToPlainText(bool formatflowed,
+                                                bool delsp,
+                                                bool formatted,
+                                                bool disallowBreaks)
+{
+  nsresult rv = ConvertBufToPlainText(mMsgBody, formatflowed,
+                                                delsp,
+                                                formatted,
+                                                disallowBreaks);
+  NS_ENSURE_SUCCESS (rv, rv);
+  return ConvertBufToPlainText(mSignature, formatflowed,
+                                           delsp,
+                                           formatted,
+                                           disallowBreaks);
+}
+
+NS_IMETHODIMP QuotingOutputStreamListener::OnStartRequest(nsIRequest *request, nsISupports * /* ctxt */)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP QuotingOutputStreamListener::OnStopRequest(nsIRequest *request, nsISupports *ctxt, nsresult status)
+{
+  nsresult rv = NS_OK;
+
+  if (!mHtmlToQuote.IsEmpty())
+  {
+    // If we had a selection in the original message to quote, we can add
+    // it now that we are done ignoring the original body of the message
+    mHeadersOnly = false;
+    rv = AppendToMsgBody(mHtmlToQuote);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  nsCOMPtr<nsIMsgCompose> compose = do_QueryReferent(mWeakComposeObj);
+  NS_ENSURE_TRUE(compose, NS_ERROR_NULL_POINTER);
+
+  MSG_ComposeType type;
+  compose->GetType(&type);
+
+  // Assign cite information if available...
+  if (!mCiteReference.IsEmpty())
+    compose->SetCiteReference(mCiteReference);
+
+  bool overrideReplyTo =
+    mozilla::Preferences::GetBool("mail.override_list_reply_to", true);
+
+  if (mHeaders && (type == nsIMsgCompType::Reply ||
+                   type == nsIMsgCompType::ReplyAll ||
+                   type == nsIMsgCompType::ReplyToList ||
+                   type == nsIMsgCompType::ReplyToSender ||
+                   type == nsIMsgCompType::ReplyToGroup ||
+                   type == nsIMsgCompType::ReplyToSenderAndGroup) &&
+      mQuoteOriginal)
+  {
+    nsCOMPtr<nsIMsgCompFields> compFields;
+    compose->GetCompFields(getter_AddRefs(compFields));
+    if (compFields)
+    {
+      nsAutoString from;
+      nsAutoString to;
+      nsAutoString cc;
+      nsAutoString bcc;
+      nsAutoString replyTo;
+      nsAutoString mailReplyTo;
+      nsAutoString mailFollowupTo;
+      nsAutoString newgroups;
+      nsAutoString followUpTo;
+      nsAutoString messageId;
+      nsAutoString references;
+      nsAutoString listPost;
+
+      nsCString outCString; // Temp helper string.
+
+      bool needToRemoveDup = false;
+      if (!mMimeConverter)
+      {
+        mMimeConverter = do_GetService(NS_MIME_CONVERTER_CONTRACTID, &rv);
+        NS_ENSURE_SUCCESS(rv, rv);
+      }
+      nsCString charset;
+      compFields->GetCharacterSet(getter_Copies(charset));
+
+      if (!mCharsetFixed) {
+        // Get the charset from the channel where MIME left it.
+        if (mQuote) {
+          nsCOMPtr<nsIChannel> quoteChannel;
+          mQuote->GetQuoteChannel(getter_AddRefs(quoteChannel));
+          if (quoteChannel) {
+            quoteChannel->GetContentCharset(charset);
+            if (!charset.IsEmpty()) {
+              rv = fixCharset(charset);
+              NS_ENSURE_SUCCESS(rv, rv);
+              compFields->SetCharacterSet(charset.get());
+            }
+          }
+        }
+      }
+
+      mHeaders->ExtractHeader(HEADER_FROM, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), from);
+
+      mHeaders->ExtractHeader(HEADER_TO, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), to);
+
+      mHeaders->ExtractHeader(HEADER_CC, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), cc);
+
+      mHeaders->ExtractHeader(HEADER_BCC, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), bcc);
+
+      mHeaders->ExtractHeader(HEADER_MAIL_FOLLOWUP_TO, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), mailFollowupTo);
+
+      mHeaders->ExtractHeader(HEADER_REPLY_TO, false, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), replyTo);
+
+      mHeaders->ExtractHeader(HEADER_MAIL_REPLY_TO, true, outCString);
+      ConvertRawBytesToUTF16(outCString, charset.get(), mailReplyTo);
+
+      mHeaders->ExtractHeader(HEADER_NEWSGROUPS, false, outCString);
+      if (!outCString.IsEmpty())
+        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
+                                         false, true, newgroups);
+
+      mHeaders->ExtractHeader(HEADER_FOLLOWUP_TO, false, outCString);
+      if (!outCString.IsEmpty())
+        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
+                                         false, true, followUpTo);
+
+      mHeaders->ExtractHeader(HEADER_MESSAGE_ID, false, outCString);
+      if (!outCString.IsEmpty())
+        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
+                                         false, true, messageId);
+
+      mHeaders->ExtractHeader(HEADER_REFERENCES, false, outCString);
+      if (!outCString.IsEmpty())
+        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
+                                         false, true, references);
+
+      mHeaders->ExtractHeader(HEADER_LIST_POST, true, outCString);
+      if (!outCString.IsEmpty())
+        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
+                                         false, true, listPost);
+      if (!listPost.IsEmpty())
+      {
+        int32_t startPos = listPost.Find("<mailto:");
+        int32_t endPos = listPost.FindChar('>', startPos);
+        // Extract the e-mail address.
+        if (endPos > startPos)
+        {
+          const uint32_t mailtoLen = strlen("<mailto:");
+          listPost = Substring(listPost, startPos + mailtoLen, endPos - (startPos + mailtoLen));
+        }
+      }
+
+      nsCString fromEmailAddress;
+      ExtractEmail(EncodedHeader(NS_ConvertUTF16toUTF8(from)), fromEmailAddress);
+
+      nsTArray<nsCString> toEmailAddresses;
+      ExtractEmails(EncodedHeader(NS_ConvertUTF16toUTF8(to)),
+        UTF16ArrayAdapter<>(toEmailAddresses));
+
+      nsTArray<nsCString> ccEmailAddresses;
+      ExtractEmails(EncodedHeader(NS_ConvertUTF16toUTF8(cc)),
+        UTF16ArrayAdapter<>(ccEmailAddresses));
+
+      nsCOMPtr<nsIPrefBranch> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+      NS_ENSURE_SUCCESS(rv, rv);
+      bool replyToSelfCheckAll = false;
+      prefs->GetBoolPref("mailnews.reply_to_self_check_all_ident",
+                         &replyToSelfCheckAll);
+
+      nsCOMPtr<nsIMsgAccountManager> accountManager =
+        do_GetService(NS_MSGACCOUNTMANAGER_CONTRACTID, &rv);
+      NS_ENSURE_SUCCESS(rv,rv);
+
+      nsCOMPtr<nsIArray> identities;
+      nsCString accountKey;
+      mOrigMsgHdr->GetAccountKey(getter_Copies(accountKey));
+      if (replyToSelfCheckAll)
+      {
+        // Check all avaliable identities if the pref was set.
+        accountManager->GetAllIdentities(getter_AddRefs(identities));
+      }
+      else if (!accountKey.IsEmpty())
+      {
+         // Check headers to see which account the message came in from
+         // (only works for pop3).
+        nsCOMPtr<nsIMsgAccount> account;
+        accountManager->GetAccount(accountKey, getter_AddRefs(account));
+
+        if (account)
+          account->GetIdentities(getter_AddRefs(identities));
+      }
+      else
+      {
+        // Check identities only for the server of the folder that the message
+        // is in.
+        nsCOMPtr <nsIMsgFolder> msgFolder;
+        rv = mOrigMsgHdr->GetFolder(getter_AddRefs(msgFolder));
+
+        if (NS_SUCCEEDED(rv) && msgFolder){
+          nsCOMPtr<nsIMsgIncomingServer> nsIMsgIncomingServer;
+          rv = msgFolder->GetServer(getter_AddRefs(nsIMsgIncomingServer));
+
+          if (NS_SUCCEEDED(rv) && nsIMsgIncomingServer)
+            accountManager->GetIdentitiesForServer(nsIMsgIncomingServer, getter_AddRefs(identities));
+        }
+      }
+
+      bool isReplyToSelf = false;
+      nsCOMPtr<nsIMsgIdentity> selfIdentity;
+      if (identities)
+      {
+        // Go through the identities to see if any of them is the author of
+        // the email.
+        nsCOMPtr<nsIMsgIdentity> lookupIdentity;
+
+        uint32_t count = 0;
+        identities->GetLength(&count);
+
+        for (uint32_t i = 0; i < count; i++)
+        {
+          lookupIdentity = do_QueryElementAt(identities, i, &rv);
+          if (NS_FAILED(rv))
+            continue;
+
+          selfIdentity = lookupIdentity;
+
+          nsCString curIdentityEmail;
+          lookupIdentity->GetEmail(curIdentityEmail);
+
+          // See if it's a reply to own message, but not a reply between identities.
+          if (curIdentityEmail.Equals(fromEmailAddress))
+          {
+            isReplyToSelf = true;
+            // For a true reply-to-self, none of your identities are normally in
+            // To or Cc. We need to avoid doing a reply-to-self for people that
+            // have multiple identities set and sometimes *uses* the other
+            // identity and sometimes *mails* the other identity.
+            // E.g. husband+wife or own-email+company-role-mail.
+            for (uint32_t j = 0; j < count; j++)
+            {
+              nsCOMPtr<nsIMsgIdentity> lookupIdentity2;
+              rv = identities->QueryElementAt(j, NS_GET_IID(nsIMsgIdentity),
+                                              getter_AddRefs(lookupIdentity2));
+              if (NS_FAILED(rv))
+                continue;
+
+              nsCString curIdentityEmail2;
+              lookupIdentity2->GetEmail(curIdentityEmail2);
+              if (toEmailAddresses.Contains(curIdentityEmail2))
+              {
+                // However, "From:me To:me" should be treated as
+                // reply-to-self if we have a Bcc. If we don't have a Bcc we
+                // might have the case of a generated mail of the style
+                // "From:me To:me Reply-To:customer". Then we need to to do a
+                // normal reply to the customer.
+                isReplyToSelf = !bcc.IsEmpty(); // true if bcc is set
+                break;
+              }
+              else if (ccEmailAddresses.Contains(curIdentityEmail2))
+              {
+                // If you auto-Cc yourself your email would be in Cc - but we
+                // can't detect why it is in Cc so lets just treat it like a
+                // normal reply.
+                isReplyToSelf = false;
+                break;
+              }
+            }
+            break;
+          }
+        }
+      }
+      if (type == nsIMsgCompType::ReplyToSender || type == nsIMsgCompType::Reply)
+      {
+        if (isReplyToSelf)
+        {
+          // Cast to concrete class. We *only* what to change m_identity, not
+          // all the things compose->SetIdentity would do.
+          nsMsgCompose* _compose = static_cast<nsMsgCompose*>(compose.get());
+          _compose->m_identity = selfIdentity;
+          compFields->SetFrom(from);
+          compFields->SetTo(to);
+          compFields->SetReplyTo(replyTo);
+        }
+        else if (!mailReplyTo.IsEmpty())
+        {
+          // handle Mail-Reply-To (http://cr.yp.to/proto/replyto.html)
+          compFields->SetTo(mailReplyTo);
+          needToRemoveDup = true;
+        }
+        else if (!replyTo.IsEmpty())
+        {
+          // default reply behaviour then
+
+          if (overrideReplyTo &&
+              !listPost.IsEmpty() && replyTo.Find(listPost) != kNotFound)
+          {
+            // Reply-To munging in this list post. Reply to From instead,
+            // as the user can choose Reply List if that's what he wants.
+            compFields->SetTo(from);
+          }
+          else
+          {
+            compFields->SetTo(replyTo);
+          }
+          needToRemoveDup = true;
+        }
+        else {
+          compFields->SetTo(from);
+        }
+      }
+      else if (type == nsIMsgCompType::ReplyAll)
+      {
+        if (isReplyToSelf)
+        {
+          // Cast to concrete class. We *only* what to change m_identity, not
+          // all the things compose->SetIdentity would do.
+          nsMsgCompose* _compose = static_cast<nsMsgCompose*>(compose.get());
+          _compose->m_identity = selfIdentity;
+          compFields->SetFrom(from);
+          compFields->SetTo(to);
+          compFields->SetCc(cc);
+          // In case it's a reply to self, but it's not the actual source of the
+          // sent message, then we won't know the Bcc header. So set it only if
+          // it's not empty. If you have auto-bcc and removed the auto-bcc for
+          // the original mail, you will have to do it manually for this reply
+          // too.
+          if (!bcc.IsEmpty())
+            compFields->SetBcc(bcc);
+          compFields->SetReplyTo(replyTo);
+          needToRemoveDup = true;
+        }
+        else if (mailFollowupTo.IsEmpty()) {
+          // default reply-all behaviour then
+
+          nsAutoString allTo;
+          if (!replyTo.IsEmpty())
+          {
+            allTo.Assign(replyTo);
+            needToRemoveDup = true;
+            if (overrideReplyTo &&
+                !listPost.IsEmpty() && replyTo.Find(listPost) != kNotFound)
+            {
+              // Reply-To munging in this list. Add From to recipients, it's the
+              // lesser evil...
+              allTo.AppendLiteral(", ");
+              allTo.Append(from);
+            }
+          }
+          else
+          {
+            allTo.Assign(from);
+          }
+
+          allTo.AppendLiteral(", ");
+          allTo.Append(to);
+          compFields->SetTo(allTo);
+
+          nsAutoString allCc;
+          compFields->GetCc(allCc); // auto-cc
+          if (!allCc.IsEmpty())
+            allCc.AppendLiteral(", ");
+          allCc.Append(cc);
+          compFields->SetCc(allCc);
+
+          needToRemoveDup = true;
+        }
+        else
+        {
+          // Handle Mail-Followup-To (http://cr.yp.to/proto/replyto.html)
+          compFields->SetTo(mailFollowupTo);
+          needToRemoveDup = true; // To remove possible self from To.
+
+          // If Cc is set a this point it's auto-Ccs, so we'll just keep those.
+        }
+      }
+      else if (type == nsIMsgCompType::ReplyToList)
+      {
+        compFields->SetTo(listPost);
+      }
+
+      if (!newgroups.IsEmpty())
+      {
+        if ((type != nsIMsgCompType::Reply) && (type != nsIMsgCompType::ReplyToSender))
+          compFields->SetNewsgroups(newgroups);
+        if (type == nsIMsgCompType::ReplyToGroup)
+          compFields->SetTo(EmptyString());
+      }
+
+      if (!followUpTo.IsEmpty())
+      {
+        // Handle "followup-to: poster" magic keyword here
+        if (followUpTo.EqualsLiteral("poster"))
+        {
+          nsCOMPtr<mozIDOMWindowProxy> domWindow;
+          nsCOMPtr<nsIPrompt> prompt;
+          compose->GetDomWindow(getter_AddRefs(domWindow));
+          NS_ENSURE_TRUE(domWindow, NS_ERROR_FAILURE);
+          nsCOMPtr<nsPIDOMWindowOuter> composeWindow = nsPIDOMWindowOuter::From(domWindow);
+          if (composeWindow)
+            composeWindow->GetPrompter(getter_AddRefs(prompt));
+          nsMsgDisplayMessageByName(prompt, u"followupToSenderMessage");
+
+          if (!replyTo.IsEmpty())
+          {
+            compFields->SetTo(replyTo);
+          }
+          else
+          {
+            // If reply-to is empty, use the From header to fetch the original
+            // sender's email.
+            compFields->SetTo(from);
+          }
+
+          // Clear the newsgroup: header field, because followup-to: poster
+          // only follows up to the original sender
+          if (!newgroups.IsEmpty())
+            compFields->SetNewsgroups(EmptyString());
+        }
+        else // Process "followup-to: newsgroup-content" here
+        {
+          if (type != nsIMsgCompType::ReplyToSender)
+            compFields->SetNewsgroups(followUpTo);
+          if (type == nsIMsgCompType::Reply)
+          {
+            compFields->SetTo(EmptyString());
+          }
+        }
+      }
+
+      if (!references.IsEmpty())
+        references.Append(char16_t(' '));
+      references += messageId;
+      compFields->SetReferences(NS_LossyConvertUTF16toASCII(references).get());
+
+      nsAutoCString resultStr;
+
+      // Cast interface to concrete class that has direct field getters etc.
+      nsMsgCompFields* _compFields = static_cast<nsMsgCompFields*>(compFields.get());
+
+      // Remove duplicate addresses between To && Cc.
+      if (needToRemoveDup)
+      {
+        nsCString addressesToRemoveFromCc;
+        if (mIdentity)
+        {
+          bool removeMyEmailInCc = true;
+          nsCString myEmail;
+          mIdentity->GetEmail(myEmail);
+
+          // Remove my own address from To, unless it's a reply to self.
+          if (!isReplyToSelf) {
+            RemoveDuplicateAddresses(nsDependentCString(_compFields->GetTo()),
+                                     myEmail, resultStr);
+            _compFields->SetTo(resultStr.get());
+          }
+          addressesToRemoveFromCc.Assign(_compFields->GetTo());
+
+          // Remove own address from CC unless we want it in there
+          // through the automatic-CC-to-self (see bug 584962). There are
+          // three cases:
+          // - user has no automatic CC
+          // - user has automatic CC but own email is not in it
+          // - user has automatic CC and own email in it
+          // Only in the last case do we want our own email address to stay
+          // in the CC list.
+          bool automaticCc;
+          mIdentity->GetDoCc(&automaticCc);
+          if (automaticCc)
+          {
+            nsCString autoCcList;
+            mIdentity->GetDoCcList(autoCcList);
+            nsTArray<nsCString> autoCcEmailAddresses;
+            ExtractEmails(EncodedHeader(autoCcList),
+              UTF16ArrayAdapter<>(autoCcEmailAddresses));
+            if (autoCcEmailAddresses.Contains(myEmail))
+            {
+              removeMyEmailInCc = false;
+            }
+          }
+
+          if (removeMyEmailInCc)
+          {
+            addressesToRemoveFromCc.AppendLiteral(", ");
+            addressesToRemoveFromCc.Append(myEmail);
+          }
+        }
+        RemoveDuplicateAddresses(nsDependentCString(_compFields->GetCc()),
+                                 addressesToRemoveFromCc, resultStr);
+        _compFields->SetCc(resultStr.get());
+        if (_compFields->GetBcc())
+        {
+          // Remove addresses already in Cc from Bcc.
+          RemoveDuplicateAddresses(nsDependentCString(_compFields->GetBcc()),
+                                   nsDependentCString(_compFields->GetCc()),
+                                   resultStr);
+          if (!resultStr.IsEmpty())
+          {
+            // Remove addresses already in To from Bcc.
+            RemoveDuplicateAddresses(resultStr,
+                                     nsDependentCString(_compFields->GetTo()),
+                                     resultStr);
+          }
+          _compFields->SetBcc(resultStr.get());
+        }
+      }
+    }
+  }
+
+#ifdef MSGCOMP_TRACE_PERFORMANCE
+  nsCOMPtr<nsIMsgComposeService> composeService (do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID));
+  composeService->TimeStamp("Done with MIME. Now we're updating the UI elements", false);
+#endif
+
+  if (mQuoteOriginal)
+    compose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeFieldsReady, NS_OK);
+
+#ifdef MSGCOMP_TRACE_PERFORMANCE
+  composeService->TimeStamp("Addressing widget, window title and focus are now set, time to insert the body", false);
+#endif
+
+  if (! mHeadersOnly)
+    mMsgBody.AppendLiteral("</html>");
+
+  // Now we have an HTML representation of the quoted message.
+  // If we are in plain text mode, we need to convert this to plain
+  // text before we try to insert it into the editor. If we don't, we
+  // just get lots of HTML text in the message...not good.
+  //
+  // XXX not m_composeHTML? /BenB
+  bool composeHTML = true;
+  compose->GetComposeHTML(&composeHTML);
+  if (!composeHTML)
+  {
+    // Downsampling.
+
+    // In plain text quotes we always allow line breaking to not end up with
+    // long lines. The quote is inserted into a span with style
+    // "white-space: pre;" which isn't be wrapped.
+    // Update: Bug 387687 changed this to "white-space: pre-wrap;".
+    // Note that the body of the plain text message is wrapped since it uses
+    // "white-space: pre-wrap; width: 72ch;".
+    // Look at it in the DOM Inspector to see it.
+    //
+    // If we're using format flowed, we need to pass it so the encoder
+    // can add a space at the end.
+    nsCOMPtr<nsIPrefBranch> pPrefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID));
+    bool flowed = false;
+    if (pPrefBranch) {
+      pPrefBranch->GetBoolPref("mailnews.send_plaintext_flowed", &flowed);
+    }
+
+    rv = ConvertToPlainText(flowed,
+                            false,  // delsp makes no sense in this context
+                            true,   // formatted
+                            false); // allow line breaks
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  compose->ProcessSignature(mIdentity, true, &mSignature);
+
+  nsCOMPtr<nsIEditor> editor;
+  if (NS_SUCCEEDED(compose->GetEditor(getter_AddRefs(editor))) && editor)
+  {
+    if (mQuoteOriginal)
+      compose->ConvertAndLoadComposeWindow(mCitePrefix,
+                                           mMsgBody, mSignature,
+                                           true, composeHTML);
+    else
+      InsertToCompose(editor, composeHTML);
+  }
+
+  if (mQuoteOriginal)
+    compose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeBodyReady, NS_OK);
+  return rv;
+}
+
+NS_IMETHODIMP QuotingOutputStreamListener::OnDataAvailable(nsIRequest *request,
+                              nsISupports *ctxt, nsIInputStream *inStr,
+                              uint64_t sourceOffset, uint32_t count)
+{
+  nsresult rv = NS_OK;
+  NS_ENSURE_ARG(inStr);
+
+  if (mHeadersOnly)
+    return rv;
+
+  char *newBuf = (char *)PR_Malloc(count + 1);
+  if (!newBuf)
+    return NS_ERROR_FAILURE;
+
+  uint32_t numWritten = 0;
+  rv = inStr->Read(newBuf, count, &numWritten);
+  if (rv == NS_BASE_STREAM_WOULD_BLOCK)
+    rv = NS_OK;
+  newBuf[numWritten] = '\0';
+  if (NS_SUCCEEDED(rv) && numWritten > 0)
+  {
+    rv = AppendToMsgBody(nsDependentCString(newBuf, numWritten));
+  }
+
+  PR_FREEIF(newBuf);
+  return rv;
+}
+
+NS_IMETHODIMP QuotingOutputStreamListener::AppendToMsgBody(const nsCString &inStr)
+{
+  nsresult rv = NS_OK;
+
+  if (!inStr.IsEmpty())
+  {
+    // Create unicode decoder.
+    if (!mUnicodeDecoder)
+    {
+      nsCOMPtr<nsICharsetConverterManager> ccm =
+               do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
+      if (NS_SUCCEEDED(rv))
+      {
+        rv = ccm->GetUnicodeDecoderRaw("UTF-8",
+                                       getter_AddRefs(mUnicodeDecoder));
+      }
+    }
+
+    if (NS_SUCCEEDED(rv))
+    {
+      int32_t unicharLength;
+      int32_t inputLength = inStr.Length();
+      rv = mUnicodeDecoder->GetMaxLength(inStr.get(), inStr.Length(), &unicharLength);
+      if (NS_SUCCEEDED(rv))
+      {
+        // Use this local buffer if possible.
+        const int32_t kLocalBufSize = 4096;
+        char16_t localBuf[kLocalBufSize];
+        char16_t *unichars = localBuf;
+
+        if (unicharLength > kLocalBufSize)
+        {
+          // Otherwise, use the buffer of the class.
+          if (!mUnicodeConversionBuffer ||
+              unicharLength > mUnicodeBufferCharacterLength)
+          {
+            if (mUnicodeConversionBuffer)
+              free(mUnicodeConversionBuffer);
+            mUnicodeConversionBuffer = (char16_t *) moz_xmalloc(unicharLength * sizeof(char16_t));
+            if (!mUnicodeConversionBuffer)
+            {
+              mUnicodeBufferCharacterLength = 0;
+              return NS_ERROR_OUT_OF_MEMORY;
+            }
+            mUnicodeBufferCharacterLength = unicharLength;
+          }
+          unichars = mUnicodeConversionBuffer;
+        }
+
+        int32_t consumedInputLength = 0;
+        int32_t originalInputLength = inputLength;
+        const char *inputBuffer = inStr.get();
+        int32_t convertedOutputLength = 0;
+        int32_t outputBufferLength = unicharLength;
+        char16_t *originalOutputBuffer = unichars;
+        do
+        {
+          rv = mUnicodeDecoder->Convert(inputBuffer, &inputLength, unichars, &unicharLength);
+          if (NS_SUCCEEDED(rv))
+          {
+            convertedOutputLength += unicharLength;
+            break;
+          }
+
+          // if we failed, we consume one byte, replace it with a question mark
+          // and try the conversion again.
+          unichars += unicharLength;
+          *unichars = (char16_t)'?';
+          unichars++;
+          unicharLength++;
+
+          mUnicodeDecoder->Reset();
+
+          inputBuffer += ++inputLength;
+          consumedInputLength += inputLength;
+          inputLength = originalInputLength - consumedInputLength;  // update input length to convert
+          convertedOutputLength += unicharLength;
+          unicharLength = outputBufferLength - unicharLength;       // update output length
+
+        } while (NS_FAILED(rv) &&
+                 (originalInputLength > consumedInputLength) &&
+                 (outputBufferLength > convertedOutputLength));
+
+        if (convertedOutputLength > 0)
+          mMsgBody.Append(originalOutputBuffer, convertedOutputLength);
+      }
+    }
+  }
+
+  return rv;
+}
+
+nsresult
+QuotingOutputStreamListener::SetComposeObj(nsIMsgCompose *obj)
+{
+  mWeakComposeObj = do_GetWeakReference(obj);
+  return NS_OK;
+}
+
+nsresult
+QuotingOutputStreamListener::SetMimeHeaders(nsIMimeHeaders * headers)
+{
+  mHeaders = headers;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+QuotingOutputStreamListener::InsertToCompose(nsIEditor *aEditor,
+                                             bool aHTMLEditor)
+{
+  // First, get the nsIEditor interface for future use
+  nsCOMPtr<nsIDOMNode> nodeInserted;
+
+  TranslateLineEnding(mMsgBody);
+
+  // Now, insert it into the editor...
+  if (aEditor)
+    aEditor->EnableUndo(true);
+
+  nsCOMPtr<nsIMsgCompose> compose = do_QueryReferent(mWeakComposeObj);
+  if (!mMsgBody.IsEmpty() && compose)
+  {
+    compose->SetInsertingQuotedContent(true);
+    if (!mCitePrefix.IsEmpty())
+    {
+      if (!aHTMLEditor)
+        mCitePrefix.AppendLiteral("\n");
+      nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(aEditor));
+      if (textEditor)
+        textEditor->InsertText(mCitePrefix);
+    }
+
+    nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(aEditor));
+    if (mailEditor)
+    {
+      if (aHTMLEditor) {
+        nsAutoString body(mMsgBody);
+        remove_plaintext_tag(body);
+        mailEditor->InsertAsCitedQuotation(body, EmptyString(), true,
+                                           getter_AddRefs(nodeInserted));
+      } else {
+        mailEditor->InsertAsQuotation(mMsgBody, getter_AddRefs(nodeInserted));
+      }
+    }
+    compose->SetInsertingQuotedContent(false);
+  }
+
+  if (aEditor)
+  {
+    nsCOMPtr<nsIPlaintextEditor> textEditor = do_QueryInterface(aEditor);
+    if (textEditor)
+    {
+      nsCOMPtr<nsISelection> selection;
+      nsCOMPtr<nsIDOMNode>   parent;
+      int32_t                offset;
+      nsresult               rv;
+
+      // get parent and offset of mailcite
+      rv = GetNodeLocation(nodeInserted, address_of(parent), &offset);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      // get selection
+      aEditor->GetSelection(getter_AddRefs(selection));
+      if (selection)
+      {
+        // place selection after mailcite
+        selection->Collapse(parent, offset+1);
+        // insert a break at current selection
+        textEditor->InsertLineBreak();
+        selection->Collapse(parent, offset+1);
+      }
+      nsCOMPtr<nsISelectionController> selCon;
+      aEditor->GetSelectionController(getter_AddRefs(selCon));
+
+      if (selCon)
+        // After ScrollSelectionIntoView(), the pending notifications might be
+        // flushed and PresShell/PresContext/Frames may be dead. See bug 418470.
+        selCon->ScrollSelectionIntoView(
+                  nsISelectionController::SELECTION_NORMAL,
+                  nsISelectionController::SELECTION_ANCHOR_REGION,
+                  true);
+    }
+  }
+
+  return NS_OK;
+}
+
+/**
+ * Returns true if the domain is a match for the given the domain list.
+ * Subdomains are also considered to match.
+ * @param aDomain - the domain name to check
+ * @param aDomainList - a comman separated string of domain names
+ */
+bool IsInDomainList(const nsAString &aDomain, const nsAString &aDomainList)
+{
+  if (aDomain.IsEmpty() || aDomainList.IsEmpty())
+    return false;
+
+  // Check plain text domains.
+  int32_t left = 0;
+  int32_t right = 0;
+  while (right != (int32_t)aDomainList.Length())
+  {
+    right = aDomainList.FindChar(',', left);
+    if (right == kNotFound)
+      right = aDomainList.Length();
+    nsDependentSubstring domain = Substring(aDomainList, left, right);
+
+    if (aDomain.Equals(domain, nsCaseInsensitiveStringComparator()))
+      return true;
+
+    nsAutoString dotDomain;
+    dotDomain.Assign(NS_LITERAL_STRING("."));
+    dotDomain.Append(domain);
+    if (StringEndsWith(aDomain, dotDomain, nsCaseInsensitiveStringComparator()))
+      return true;
+
+    left = right + 1;
+  }
+  return false;
+}
+
+NS_IMPL_ISUPPORTS(QuotingOutputStreamListener,
+                   nsIMsgQuotingOutputStreamListener,
+                   nsIRequestObserver,
+                   nsIStreamListener)
+
+////////////////////////////////////////////////////////////////////////////////////
+// END OF QUOTING LISTENER
+////////////////////////////////////////////////////////////////////////////////////
+
+/* attribute MSG_ComposeType type; */
+NS_IMETHODIMP nsMsgCompose::SetType(MSG_ComposeType aType)
+{
+
+  mType = aType;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetType(MSG_ComposeType *aType)
+{
+  NS_ENSURE_ARG_POINTER(aType);
+
+  *aType = mType;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::QuoteMessage(const char *msgURI)
+{
+  NS_ENSURE_ARG_POINTER(msgURI);
+
+  nsresult rv;
+  mQuotingToFollow = false;
+
+  // Create a mime parser (nsIStreamConverter)!
+  mQuote = do_CreateInstance(NS_MSGQUOTE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr <nsIMsgDBHdr> msgHdr;
+  rv = GetMsgDBHdrFromURI(msgURI, getter_AddRefs(msgHdr));
+
+  // Create the consumer output stream.. this will receive all the HTML from libmime
+  mQuoteStreamListener =
+    new QuotingOutputStreamListener(msgURI,
+                                    msgHdr,
+                                    false,
+                                    !mHtmlToQuote.IsEmpty(),
+                                    m_identity,
+                                    mQuote,
+                                    mCharsetOverride || mAnswerDefaultCharset,
+                                    false,
+                                    mHtmlToQuote);
+
+  if (!mQuoteStreamListener)
+    return NS_ERROR_FAILURE;
+  NS_ADDREF(mQuoteStreamListener);
+
+  mQuoteStreamListener->SetComposeObj(this);
+
+  rv = mQuote->QuoteMessage(msgURI, false, mQuoteStreamListener,
+                            mCharsetOverride ? m_compFields->GetCharacterSet() : "",
+                            false, msgHdr);
+  return rv;
+}
+
+nsresult
+nsMsgCompose::QuoteOriginalMessage() // New template
+{
+  nsresult    rv;
+
+  mQuotingToFollow = false;
+
+  // Create a mime parser (nsIStreamConverter)!
+  mQuote = do_CreateInstance(NS_MSGQUOTE_CONTRACTID, &rv);
+  if (NS_FAILED(rv) || !mQuote)
+    return NS_ERROR_FAILURE;
+
+  bool bAutoQuote = true;
+  m_identity->GetAutoQuote(&bAutoQuote);
+
+  nsCOMPtr <nsIMsgDBHdr> originalMsgHdr = mOrigMsgHdr;
+  if (!originalMsgHdr)
+  {
+    rv = GetMsgDBHdrFromURI(mOriginalMsgURI.get(), getter_AddRefs(originalMsgHdr));
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  bool fileUrl = StringBeginsWith(mOriginalMsgURI, NS_LITERAL_CSTRING("file:"));
+  if (fileUrl)
+  {
+    mOriginalMsgURI.Replace(0, 5, NS_LITERAL_CSTRING("mailbox:"));
+    mOriginalMsgURI.AppendLiteral("?number=0");
+  }
+
+  // Create the consumer output stream.. this will receive all the HTML from libmime
+  mQuoteStreamListener =
+    new QuotingOutputStreamListener(mOriginalMsgURI.get(),
+                                    originalMsgHdr,
+                                    mWhatHolder != 1,
+                                    !bAutoQuote || !mHtmlToQuote.IsEmpty(),
+                                    m_identity,
+                                    mQuote,
+                                    mCharsetOverride || mAnswerDefaultCharset,
+                                    true,
+                                    mHtmlToQuote);
+
+  if (!mQuoteStreamListener)
+    return NS_ERROR_FAILURE;
+  NS_ADDREF(mQuoteStreamListener);
+
+  mQuoteStreamListener->SetComposeObj(this);
+
+  rv = mQuote->QuoteMessage(mOriginalMsgURI.get(), mWhatHolder != 1, mQuoteStreamListener,
+                            mCharsetOverride ? mQuoteCharset.get() : "",
+                            !bAutoQuote, originalMsgHdr);
+  return rv;
+}
+
+//CleanUpRecipient will remove un-necessary "<>" when a recipient as an address without name
+void nsMsgCompose::CleanUpRecipients(nsString& recipients)
+{
+  uint16_t i;
+  bool startANewRecipient = true;
+  bool removeBracket = false;
+  nsAutoString newRecipient;
+  char16_t aChar;
+
+  for (i = 0; i < recipients.Length(); i ++)
+  {
+    aChar = recipients[i];
+    switch (aChar)
+    {
+      case '<'  :
+        if (startANewRecipient)
+          removeBracket = true;
+        else
+          newRecipient += aChar;
+        startANewRecipient = false;
+        break;
+
+      case '>'  :
+        if (removeBracket)
+          removeBracket = false;
+        else
+          newRecipient += aChar;
+        break;
+
+      case ' '  :
+        newRecipient += aChar;
+        break;
+
+      case ','  :
+        newRecipient += aChar;
+        startANewRecipient = true;
+        removeBracket = false;
+        break;
+
+      default   :
+        newRecipient += aChar;
+        startANewRecipient = false;
+        break;
+    }
+  }
+  recipients = newRecipient;
+}
+
+NS_IMETHODIMP nsMsgCompose::RememberQueuedDisposition()
+{
+  // need to find the msg hdr in the saved folder and then set a property on
+  // the header that we then look at when we actually send the message.
+  nsresult rv;
+  nsAutoCString dispositionSetting;
+
+  if (mType == nsIMsgCompType::Reply ||
+      mType == nsIMsgCompType::ReplyAll ||
+      mType == nsIMsgCompType::ReplyToList ||
+      mType == nsIMsgCompType::ReplyToGroup ||
+      mType == nsIMsgCompType::ReplyToSender ||
+      mType == nsIMsgCompType::ReplyToSenderAndGroup)
+  {
+    dispositionSetting.AssignLiteral("replied");
+  }
+  else if (mType == nsIMsgCompType::ForwardAsAttachment ||
+           mType == nsIMsgCompType::ForwardInline)
+  {
+    dispositionSetting.AssignLiteral("forwarded");
+  }
+  else if (mType == nsIMsgCompType::Draft)
+  {
+    nsAutoCString curDraftIdURL;
+    rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));
+    NS_ENSURE_SUCCESS(rv, rv);
+    if (!curDraftIdURL.IsEmpty()) {
+      nsCOMPtr <nsIMsgDBHdr> draftHdr;
+      rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(draftHdr));
+      NS_ENSURE_SUCCESS(rv, rv);
+      draftHdr->GetStringProperty(QUEUED_DISPOSITION_PROPERTY, getter_Copies(dispositionSetting));
+    }
+  }
+
+  nsMsgKey msgKey;
+  if (mMsgSend)
+  {
+    mMsgSend->GetMessageKey(&msgKey);
+    nsAutoCString msgUri(m_folderName);
+    nsCString identityKey;
+
+    m_identity->GetKey(identityKey);
+
+    int32_t insertIndex = StringBeginsWith(msgUri, NS_LITERAL_CSTRING("mailbox")) ? 7 : 4;
+    msgUri.Insert("-message", insertIndex); // "mailbox/imap: -> "mailbox/imap-message:"
+    msgUri.Append('#');
+    msgUri.AppendInt(msgKey);
+    nsCOMPtr <nsIMsgDBHdr> msgHdr;
+    rv = GetMsgDBHdrFromURI(msgUri.get(), getter_AddRefs(msgHdr));
+    NS_ENSURE_SUCCESS(rv, rv);
+    uint32_t pseudoHdrProp = 0;
+    msgHdr->GetUint32Property("pseudoHdr", &pseudoHdrProp);
+    if (pseudoHdrProp)
+    {
+      // Use SetAttributeOnPendingHdr for IMAP pseudo headers, as those
+      // will get deleted (and properties set using SetStringProperty lost.)
+      nsCOMPtr<nsIMsgFolder> folder;
+      rv = msgHdr->GetFolder(getter_AddRefs(folder));
+      NS_ENSURE_SUCCESS(rv,rv);
+      nsCOMPtr<nsIMsgDatabase> msgDB;
+      rv = folder->GetMsgDatabase(getter_AddRefs(msgDB));
+      NS_ENSURE_SUCCESS(rv,rv);
+
+      nsCString messageId;
+      mMsgSend->GetMessageId(messageId);
+      msgHdr->SetMessageId(messageId.get());
+      if (!mOriginalMsgURI.IsEmpty())
+      {
+        msgDB->SetAttributeOnPendingHdr(msgHdr, ORIG_URI_PROPERTY, mOriginalMsgURI.get());
+        if (!dispositionSetting.IsEmpty())
+          msgDB->SetAttributeOnPendingHdr(msgHdr, QUEUED_DISPOSITION_PROPERTY,
+                                          dispositionSetting.get());
+      }
+      msgDB->SetAttributeOnPendingHdr(msgHdr, HEADER_X_MOZILLA_IDENTITY_KEY, identityKey.get());
+    }
+    else if (msgHdr)
+    {
+      if (!mOriginalMsgURI.IsEmpty())
+      {
+        msgHdr->SetStringProperty(ORIG_URI_PROPERTY, mOriginalMsgURI.get());
+        if (!dispositionSetting.IsEmpty())
+          msgHdr->SetStringProperty(QUEUED_DISPOSITION_PROPERTY, dispositionSetting.get());
+      }
+      msgHdr->SetStringProperty(HEADER_X_MOZILLA_IDENTITY_KEY, identityKey.get());
+    }
+  }
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::ProcessReplyFlags()
+{
+  nsresult rv;
+  // check to see if we were doing a reply or a forward, if we were, set the answered field flag on the message folder
+  // for this URI.
+  if (mType == nsIMsgCompType::Reply ||
+      mType == nsIMsgCompType::ReplyAll ||
+      mType == nsIMsgCompType::ReplyToList ||
+      mType == nsIMsgCompType::ReplyToGroup ||
+      mType == nsIMsgCompType::ReplyToSender ||
+      mType == nsIMsgCompType::ReplyToSenderAndGroup ||
+      mType == nsIMsgCompType::ForwardAsAttachment ||
+      mType == nsIMsgCompType::ForwardInline ||
+      mDraftDisposition != nsIMsgFolder::nsMsgDispositionState_None)
+  {
+    if (!mOriginalMsgURI.IsEmpty())
+    {
+      nsCString msgUri (mOriginalMsgURI);
+      char *newStr = msgUri.BeginWriting();
+      char *uri;
+      while (nullptr != (uri = NS_strtok(",", &newStr)))
+      {
+        nsCOMPtr <nsIMsgDBHdr> msgHdr;
+        rv = GetMsgDBHdrFromURI(uri, getter_AddRefs(msgHdr));
+        NS_ENSURE_SUCCESS(rv,rv);
+        if (msgHdr)
+        {
+          // get the folder for the message resource
+          nsCOMPtr<nsIMsgFolder> msgFolder;
+          msgHdr->GetFolder(getter_AddRefs(msgFolder));
+          if (msgFolder)
+          {
+            // If it's a draft with disposition, default to replied, otherwise,
+            // check if it's a forward.
+            nsMsgDispositionState dispositionSetting = nsIMsgFolder::nsMsgDispositionState_Replied;
+            if (mDraftDisposition != nsIMsgFolder::nsMsgDispositionState_None)
+              dispositionSetting = mDraftDisposition;
+            else if (mType == nsIMsgCompType::ForwardAsAttachment ||
+                mType == nsIMsgCompType::ForwardInline)
+              dispositionSetting = nsIMsgFolder::nsMsgDispositionState_Forwarded;
+
+            msgFolder->AddMessageDispositionState(msgHdr, dispositionSetting);
+            if (mType != nsIMsgCompType::ForwardAsAttachment)
+              break;         // just safeguard
+          }
+        }
+      }
+    }
+  }
+
+  return NS_OK;
+}
+NS_IMETHODIMP nsMsgCompose::OnStartSending(const char *aMsgID, uint32_t aMsgSize)
+{
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnStartSending(aMsgID, aMsgSize);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::OnProgress(const char *aMsgID, uint32_t aProgress, uint32_t aProgressMax)
+{
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnProgress(aMsgID, aProgress, aProgressMax);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::OnStatus(const char *aMsgID, const char16_t *aMsg)
+{
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnStatus(aMsgID, aMsg);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::OnStopSending(const char *aMsgID, nsresult aStatus, const char16_t *aMsg,
+                                      nsIFile *returnFile)
+{
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnStopSending(aMsgID, aStatus, aMsg, returnFile);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::OnSendNotPerformed(const char *aMsgID, nsresult aStatus)
+{
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnSendNotPerformed(aMsgID, aStatus);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::OnGetDraftFolderURI(const char *aFolderURI)
+{
+  m_folderName = aFolderURI;
+  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
+  nsCOMPtr<nsIMsgSendListener> externalSendListener;
+
+  while (iter.HasMore())
+  {
+    externalSendListener = iter.GetNext();
+    externalSendListener->OnGetDraftFolderURI(aFolderURI);
+  }
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////////
+// This is the listener class for both the send operation and the copy operation.
+// We have to create this class to listen for message send completion and deal with
+// failures in both send and copy operations
+////////////////////////////////////////////////////////////////////////////////////
+NS_IMPL_ADDREF(nsMsgComposeSendListener)
+NS_IMPL_RELEASE(nsMsgComposeSendListener)
+
+/*
+NS_IMPL_QUERY_INTERFACE(nsMsgComposeSendListener,
+                         nsIMsgComposeSendListener,
+                         nsIMsgSendListener,
+                         nsIMsgCopyServiceListener,
+                         nsIWebProgressListener)
+*/
+NS_INTERFACE_MAP_BEGIN(nsMsgComposeSendListener)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIMsgComposeSendListener)
+  NS_INTERFACE_MAP_ENTRY(nsIMsgComposeSendListener)
+  NS_INTERFACE_MAP_ENTRY(nsIMsgSendListener)
+  NS_INTERFACE_MAP_ENTRY(nsIMsgCopyServiceListener)
+  NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
+NS_INTERFACE_MAP_END
+
+
+nsMsgComposeSendListener::nsMsgComposeSendListener(void)
+{
+  mDeliverMode = 0;
+}
+
+nsMsgComposeSendListener::~nsMsgComposeSendListener(void)
+{
+}
+
+NS_IMETHODIMP nsMsgComposeSendListener::SetMsgCompose(nsIMsgCompose *obj)
+{
+  mWeakComposeObj = do_GetWeakReference(obj);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgComposeSendListener::SetDeliverMode(MSG_DeliverMode deliverMode)
+{
+  mDeliverMode = deliverMode;
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::OnStartSending(const char *aMsgID, uint32_t aMsgSize)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnStartSending(aMsgID, aMsgSize);
+
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::OnProgress(const char *aMsgID, uint32_t aProgress, uint32_t aProgressMax)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnProgress(aMsgID, aProgress, aProgressMax);
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::OnStatus(const char *aMsgID, const char16_t *aMsg)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnStatus(aMsgID, aMsg);
+  return NS_OK;
+}
+
+nsresult nsMsgComposeSendListener::OnSendNotPerformed(const char *aMsgID, nsresult aStatus)
+{
+ // since OnSendNotPerformed is called in the case where the user aborts the operation
+ // by closing the compose window, we need not do the stuff required
+ // for closing the windows. However we would need to do the other operations as below.
+
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
+  if (msgCompose)
+    msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);
+
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnSendNotPerformed(aMsgID, aStatus);
+
+  return rv;
+}
+
+nsresult nsMsgComposeSendListener::OnStopSending(const char *aMsgID, nsresult aStatus,
+                                                 const char16_t *aMsg, nsIFile *returnFile)
+{
+  nsresult rv = NS_OK;
+
+  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
+  if (msgCompose)
+  {
+    nsCOMPtr<nsIMsgProgress> progress;
+    msgCompose->GetProgress(getter_AddRefs(progress));
+
+    if (NS_SUCCEEDED(aStatus))
+    {
+      nsCOMPtr<nsIMsgCompFields> compFields;
+      msgCompose->GetCompFields(getter_AddRefs(compFields));
+
+      // only process the reply flags if we successfully sent the message
+      msgCompose->ProcessReplyFlags();
+
+      // See if there is a composer window
+      bool hasDomWindow = true;
+      nsCOMPtr<mozIDOMWindowProxy> domWindow;
+      rv = msgCompose->GetDomWindow(getter_AddRefs(domWindow));
+      if (NS_FAILED(rv) || !domWindow)
+        hasDomWindow = false;
+
+      // Close the window ONLY if we are not going to do a save operation
+      nsAutoString fieldsFCC;
+      if (NS_SUCCEEDED(compFields->GetFcc(fieldsFCC)))
+      {
+        if (!fieldsFCC.IsEmpty())
+        {
+          if (fieldsFCC.LowerCaseEqualsLiteral("nocopy://"))
+          {
+            msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, NS_OK);
+            if (progress)
+            {
+              progress->UnregisterListener(this);
+              progress->CloseProgressDialog(false);
+            }
+            if (hasDomWindow)
+              msgCompose->CloseWindow();
+          }
+        }
+      }
+      else
+      {
+        msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, NS_OK);
+        if (progress)
+        {
+          progress->UnregisterListener(this);
+          progress->CloseProgressDialog(false);
+        }
+        if (hasDomWindow)
+          msgCompose->CloseWindow();  // if we fail on the simple GetFcc call, close the window to be safe and avoid
+                                      // windows hanging around to prevent the app from exiting.
+      }
+
+      // Remove the current draft msg when sending draft is done.
+      bool deleteDraft;
+      msgCompose->GetDeleteDraft(&deleteDraft);
+      if (deleteDraft)
+        RemoveCurrentDraftMessage(msgCompose, false);
+    }
+    else
+    {
+      msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);
+      if (progress)
+      {
+        progress->CloseProgressDialog(true);
+        progress->UnregisterListener(this);
+      }
+    }
+
+  }
+
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnStopSending(aMsgID, aStatus, aMsg, returnFile);
+
+  return rv;
+}
+
+nsresult
+nsMsgComposeSendListener::OnGetDraftFolderURI(const char *aFolderURI)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
+  if (NS_SUCCEEDED(rv) && composeSendListener)
+    composeSendListener->OnGetDraftFolderURI(aFolderURI);
+
+  return NS_OK;
+}
+
+
+nsresult
+nsMsgComposeSendListener::OnStartCopy()
+{
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::OnProgress(uint32_t aProgress, uint32_t aProgressMax)
+{
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::OnStopCopy(nsresult aStatus)
+{
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
+  if (msgCompose)
+  {
+    if (mDeliverMode == nsIMsgSend::nsMsgQueueForLater ||
+        mDeliverMode == nsIMsgSend::nsMsgDeliverBackground ||
+        mDeliverMode == nsIMsgSend::nsMsgSaveAsDraft)
+    {
+      msgCompose->RememberQueuedDisposition();
+    }
+
+    // Ok, if we are here, we are done with the send/copy operation so
+    // we have to do something with the window....SHOW if failed, Close
+    // if succeeded
+
+    nsCOMPtr<nsIMsgProgress> progress;
+    msgCompose->GetProgress(getter_AddRefs(progress));
+    if (progress)
+    {
+      // Unregister ourself from msg compose progress
+      progress->UnregisterListener(this);
+      progress->CloseProgressDialog(NS_FAILED(aStatus));
+    }
+
+    msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);
+
+    if (NS_SUCCEEDED(aStatus))
+    {
+      // We should only close the window if we are done. Things like templates
+      // and drafts aren't done so their windows should stay open
+      if (mDeliverMode == nsIMsgSend::nsMsgSaveAsDraft ||
+          mDeliverMode == nsIMsgSend::nsMsgSaveAsTemplate)
+      {
+        msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::SaveInFolderDone, aStatus);
+        // Remove the current draft msg when saving as draft/template is done.
+        msgCompose->SetDeleteDraft(true);
+        RemoveCurrentDraftMessage(msgCompose, true);
+      }
+      else
+      {
+        // Remove (possible) draft if we're in send later mode
+        if (mDeliverMode == nsIMsgSend::nsMsgQueueForLater ||
+            mDeliverMode == nsIMsgSend::nsMsgDeliverBackground)
+        {
+          msgCompose->SetDeleteDraft(true);
+          RemoveCurrentDraftMessage(msgCompose, true);
+        }
+        msgCompose->CloseWindow();
+      }
+    }
+    msgCompose->ClearMessageSend();
+  }
+
+  return rv;
+}
+
+nsresult
+nsMsgComposeSendListener::GetMsgFolder(nsIMsgCompose *compObj, nsIMsgFolder **msgFolder)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgFolder> aMsgFolder;
+  nsCString folderUri;
+
+  rv = compObj->GetSavedFolderURI(getter_Copies(folderUri));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIRDFService> rdfService (do_GetService("@mozilla.org/rdf/rdf-service;1", &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr <nsIRDFResource> resource;
+  rv = rdfService->GetResource(folderUri, getter_AddRefs(resource));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  aMsgFolder = do_QueryInterface(resource, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+  NS_IF_ADDREF(*msgFolder = aMsgFolder);
+  return rv;
+}
+
+nsresult
+nsMsgComposeSendListener::RemoveCurrentDraftMessage(nsIMsgCompose *compObj, bool calledByCopy)
+{
+  nsresult rv;
+  nsCOMPtr <nsIMsgCompFields> compFields = nullptr;
+
+  rv = compObj->GetCompFields(getter_AddRefs(compFields));
+  NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get compose fields");
+  if (NS_FAILED(rv) || !compFields)
+    return rv;
+
+  nsCString curDraftIdURL;
+  nsMsgKey newUid = 0;
+  nsCString newDraftIdURL;
+  nsCOMPtr<nsIMsgFolder> msgFolder;
+
+  rv = compFields->GetDraftId(getter_Copies(curDraftIdURL));
+  NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get draft id");
+
+  // Skip if no draft id (probably a new draft msg).
+  if (NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty())
+  {
+    nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
+    rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
+    NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg header DB interface pointer.");
+    if (NS_SUCCEEDED(rv) && msgDBHdr)
+    {
+      do { // Break on failure or removal not needed.
+        // Get the folder for the message resource.
+        rv = msgDBHdr->GetFolder(getter_AddRefs(msgFolder));
+        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg folder interface pointer.");
+        if (NS_FAILED(rv) || !msgFolder)
+          break;
+
+        // Only do this if it's a drafts folder.
+        bool isDraft;
+        msgFolder->GetFlag(nsMsgFolderFlags::Drafts, &isDraft);
+        if (!isDraft)
+          break;
+
+        // Only remove if the message is actually in the db. It might have only
+        // been in the use cache.
+        nsMsgKey key;
+        rv = msgDBHdr->GetMessageKey(&key);
+        if (NS_FAILED(rv))
+          break;
+        nsCOMPtr<nsIMsgDatabase> db;
+        msgFolder->GetMsgDatabase(getter_AddRefs(db));
+        if (!db)
+          break;
+        bool containsKey = false;
+        db->ContainsKey(key, &containsKey);
+        if (!containsKey)
+          break;
+
+        // Build the msg array.
+        nsCOMPtr<nsIMutableArray> messageArray(do_CreateInstance(NS_ARRAY_CONTRACTID, &rv));
+        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't allocate array.");
+        if (NS_FAILED(rv) || !messageArray)
+          break;
+        rv = messageArray->AppendElement(msgDBHdr, false);
+        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't append msg header to array.");
+        if (NS_FAILED(rv))
+          break;
+
+        // Ready to delete the msg.
+        rv = msgFolder->DeleteMessages(messageArray, nullptr, true, false, nullptr, false /*allowUndo*/);
+        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't delete message.");
+      } while(false);
+    }
+    else
+    {
+      // If we get here we have the case where the draft folder
+      // is on the server and
+      // it's not currently open (in thread pane), so draft
+      // msgs are saved to the server
+      // but they're not in our local DB. In this case,
+      // GetMsgDBHdrFromURI() will never
+      // find the msg. If the draft folder is a local one
+      // then we'll not get here because
+      // the draft msgs are saved to the local folder and
+      // are in local DB. Make sure the
+      // msg folder is imap.  Even if we get here due to
+      // DB errors (worst case), we should
+      // still try to delete msg on the server because
+      // that's where the master copy of the
+      // msgs are stored, if draft folder is on the server.
+      // For local case, since DB is bad
+      // we can't do anything with it anyway so it'll be
+      // noop in this case.
+      rv = GetMsgFolder(compObj, getter_AddRefs(msgFolder));
+      if (NS_SUCCEEDED(rv) && msgFolder)
+      {
+        nsCOMPtr <nsIMsgImapMailFolder> imapFolder = do_QueryInterface(msgFolder);
+        NS_ASSERTION(imapFolder, "The draft folder MUST be an imap folder in order to mark the msg delete!");
+        if (NS_SUCCEEDED(rv) && imapFolder)
+        {
+          const char * str = PL_strchr(curDraftIdURL.get(), '#');
+          NS_ASSERTION(str, "Failed to get current draft id url");
+          if (str)
+          {
+            nsAutoCString srcStr(str+1);
+            nsresult err;
+            nsMsgKey messageID = srcStr.ToInteger(&err);
+            if (messageID != nsMsgKey_None)
+            {
+              rv = imapFolder->StoreImapFlags(kImapMsgDeletedFlag, true,
+                                              &messageID, 1, nullptr);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  // Now get the new uid so that next save will remove the right msg
+  // regardless whether or not the exiting msg can be deleted.
+  if (calledByCopy)
+  {
+    nsCOMPtr<nsIMsgFolder> savedToFolder;
+    nsCOMPtr<nsIMsgSend> msgSend;
+    rv = compObj->GetMessageSend(getter_AddRefs(msgSend));
+    NS_ASSERTION(msgSend, "RemoveCurrentDraftMessage msgSend is null.");
+    if (NS_FAILED(rv) || !msgSend)
+      return rv;
+
+    rv = msgSend->GetMessageKey(&newUid);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // Make sure we have a folder interface pointer
+    rv = GetMsgFolder(compObj, getter_AddRefs(savedToFolder));
+
+    // Reset draft (uid) url with the new uid.
+    if (savedToFolder && newUid != nsMsgKey_None)
+    {
+      uint32_t folderFlags;
+      savedToFolder->GetFlags(&folderFlags);
+      if (folderFlags & nsMsgFolderFlags::Drafts)
+      {
+        rv = savedToFolder->GenerateMessageURI(newUid, newDraftIdURL);
+        NS_ENSURE_SUCCESS(rv, rv);
+        compFields->SetDraftId(newDraftIdURL.get());
+      }
+    }
+  }
+  return rv;
+}
+
+nsresult
+nsMsgComposeSendListener::SetMessageKey(nsMsgKey aMessageKey)
+{
+  return NS_OK;
+}
+
+nsresult
+nsMsgComposeSendListener::GetMessageId(nsACString& messageId)
+{
+  return NS_OK;
+}
+
+/* void onStateChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long aStateFlags, in nsresult aStatus); */
+NS_IMETHODIMP nsMsgComposeSendListener::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, uint32_t aStateFlags, nsresult aStatus)
+{
+  if (aStateFlags == nsIWebProgressListener::STATE_STOP)
+  {
+    nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj);
+    if (msgCompose)
+    {
+      nsCOMPtr<nsIMsgProgress> progress;
+      msgCompose->GetProgress(getter_AddRefs(progress));
+
+      // Time to stop any pending operation...
+      if (progress)
+      {
+        // Unregister ourself from msg compose progress
+        progress->UnregisterListener(this);
+
+        bool bCanceled = false;
+        progress->GetProcessCanceledByUser(&bCanceled);
+        if (bCanceled)
+        {
+          nsresult rv;
+          nsCOMPtr<nsIStringBundleService> bundleService =
+            mozilla::services::GetStringBundleService();
+          NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+          nsCOMPtr<nsIStringBundle> bundle;
+          rv = bundleService->CreateBundle(
+            "chrome://messenger/locale/messengercompose/composeMsgs.properties",
+            getter_AddRefs(bundle));
+          NS_ENSURE_SUCCESS(rv, rv);
+          nsString msg;
+          bundle->GetStringFromName(u"msgCancelling", getter_Copies(msg));
+          progress->OnStatusChange(nullptr, nullptr, NS_OK, msg.get());
+        }
+      }
+
+      nsCOMPtr<nsIMsgSend> msgSend;
+      msgCompose->GetMessageSend(getter_AddRefs(msgSend));
+      if (msgSend)
+        msgSend->Abort();
+    }
+  }
+  return NS_OK;
+}
+
+/* void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress); */
+NS_IMETHODIMP nsMsgComposeSendListener::OnProgressChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, int32_t aCurSelfProgress, int32_t aMaxSelfProgress, int32_t aCurTotalProgress, int32_t aMaxTotalProgress)
+{
+  /* Ignore this call */
+  return NS_OK;
+}
+
+/* void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI location, in unsigned long aFlags); */
+NS_IMETHODIMP nsMsgComposeSendListener::OnLocationChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsIURI *location, uint32_t aFlags)
+{
+  /* Ignore this call */
+  return NS_OK;
+}
+
+/* void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage); */
+NS_IMETHODIMP nsMsgComposeSendListener::OnStatusChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsresult aStatus, const char16_t *aMessage)
+{
+  /* Ignore this call */
+  return NS_OK;
+}
+
+/* void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long state); */
+NS_IMETHODIMP nsMsgComposeSendListener::OnSecurityChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, uint32_t state)
+{
+  /* Ignore this call */
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::ConvertHTMLToText(nsIFile *aSigFile, nsString &aSigData)
+{
+  nsAutoString origBuf;
+
+  nsresult rv = LoadDataFromFile(aSigFile, origBuf);
+  NS_ENSURE_SUCCESS (rv, rv);
+
+  ConvertBufToPlainText(origBuf, false, false, true, true);
+  aSigData = origBuf;
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::ConvertTextToHTML(nsIFile *aSigFile, nsString &aSigData)
+{
+  nsresult    rv;
+  nsAutoString    origBuf;
+
+  rv = LoadDataFromFile(aSigFile, origBuf);
+  if (NS_FAILED(rv))
+    return rv;
+
+  // Ok, once we are here, we need to escape the data to make sure that
+  // we don't do HTML stuff with plain text sigs.
+  //
+  char16_t *escaped = MsgEscapeHTML2(origBuf.get(), origBuf.Length());
+  if (escaped)
+  {
+    aSigData.Append(escaped);
+    NS_Free(escaped);
+  }
+  else
+    aSigData.Append(origBuf);
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::LoadDataFromFile(nsIFile *file, nsString &sigData,
+                               bool aAllowUTF8, bool aAllowUTF16)
+{
+  int32_t       readSize;
+  uint32_t       nGot;
+  char          *readBuf;
+  char          *ptr;
+
+  bool isDirectory = false;
+  file->IsDirectory(&isDirectory);
+  if (isDirectory) {
+    NS_ERROR("file is a directory");
+    return NS_MSG_ERROR_READING_FILE;
+  }
+
+
+  nsCOMPtr <nsIInputStream> inputFile;
+  nsresult rv = NS_NewLocalFileInputStream(getter_AddRefs(inputFile), file);
+  if (NS_FAILED(rv))
+    return NS_MSG_ERROR_READING_FILE;
+
+  int64_t fileSize;
+  file->GetFileSize(&fileSize);
+  readSize = (uint32_t) fileSize;
+
+
+  ptr = readBuf = (char *)PR_Malloc(readSize + 1);  if (!readBuf)
+    return NS_ERROR_OUT_OF_MEMORY;
+  memset(readBuf, 0, readSize + 1);
+
+  while (readSize) {
+    inputFile->Read(ptr, readSize, &nGot);
+    if (nGot) {
+      readSize -= nGot;
+      ptr += nGot;
+    }
+    else {
+      readSize = 0;
+    }
+  }
+  inputFile->Close();
+
+  readSize = (uint32_t) fileSize;
+
+  nsAutoCString sigEncoding(nsMsgI18NParseMetaCharset(file));
+  bool removeSigCharset = !sigEncoding.IsEmpty() && m_composeHTML;
+
+  if (sigEncoding.IsEmpty()) {
+    if (aAllowUTF8 && MsgIsUTF8(nsDependentCString(readBuf))) {
+      sigEncoding.Assign("UTF-8");
+    }
+    else if (sigEncoding.IsEmpty() && aAllowUTF16 &&
+             readSize % 2 == 0 && readSize >= 2 &&
+             ((readBuf[0] == char(0xFE) && readBuf[1] == char(0xFF)) ||
+              (readBuf[0] == char(0xFF) && readBuf[1] == char(0xFE)))) {
+      sigEncoding.Assign("UTF-16");
+    }
+    else {
+      //default to platform encoding for plain text files w/o meta charset
+      nsAutoCString textFileCharset;
+      nsMsgI18NTextFileCharset(textFileCharset);
+      sigEncoding.Assign(textFileCharset);
+    }
+  }
+
+  nsAutoCString readStr(readBuf, (int32_t) fileSize);
+  PR_FREEIF(readBuf);
+
+  // XXX: ^^^ could really use nsContentUtils::SlurpFileToString instead!
+
+  if (NS_FAILED(ConvertToUnicode(sigEncoding.get(), readStr, sigData)))
+    CopyASCIItoUTF16(readStr, sigData);
+
+  //remove sig meta charset to allow user charset override during composition
+  if (removeSigCharset)
+  {
+    nsAutoCString metaCharset("charset=");
+    metaCharset.Append(sigEncoding);
+    int32_t pos = sigData.Find(metaCharset.BeginReading(), true);
+    if (pos != kNotFound)
+      sigData.Cut(pos, metaCharset.Length());
+  }
+  return NS_OK;
+}
+
+/**
+ * If the data contains file URLs, convert them to data URLs instead.
+ * This is intended to be used in for signature files, so that we can make sure
+ * images loaded into the editor are available on send.
+ */
+nsresult
+nsMsgCompose::ReplaceFileURLs(nsAutoString &aData)
+{
+  int32_t fPos;
+  int32_t offset = -1;
+  while ((fPos = aData.RFind("file://", true, offset)) != kNotFound) {
+    if (fPos != kNotFound && fPos > 0) {
+      char16_t q = aData.CharAt(fPos - 1);
+      bool quoted = (q == '"' || q == '\'');
+      int32_t end = kNotFound;
+      if (quoted) {
+        end = aData.FindChar(q, fPos);
+      }
+      else {
+        int32_t spacePos = aData.FindChar(' ', fPos);
+        int32_t gtPos = aData.FindChar('>', fPos);
+        if (gtPos != kNotFound && spacePos != kNotFound) {
+          end = (spacePos < gtPos) ? spacePos : gtPos;
+        }
+        else if (gtPos == kNotFound && spacePos != kNotFound) {
+          end = spacePos;
+        }
+        else if (gtPos != kNotFound && spacePos == kNotFound) {
+          end = gtPos;
+        }
+      }
+      if (end == kNotFound) {
+        break;
+      }
+      nsString fileURL;
+      fileURL = Substring(aData, fPos, end - fPos);
+      nsString dataURL;
+      nsresult rv = DataURLForFileURL(fileURL, dataURL);
+      // If this one failed, maybe because the file wasn't found,
+      // continue to process the next one.
+      if (NS_SUCCEEDED(rv)) {
+        aData.Replace(fPos, end - fPos, dataURL);
+      }
+      offset = fPos - 1;
+    }
+  }
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::DataURLForFileURL(const nsAString &aFileURL, nsAString &aDataURL)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMIMEService> mime = do_GetService("@mozilla.org/mime;1", &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIURI> fileUri;
+  rv = NS_NewURI(getter_AddRefs(fileUri), NS_ConvertUTF16toUTF8(aFileURL).get());
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIFileURL> fileUrl(do_QueryInterface(fileUri, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  nsCOMPtr<nsIFile> file;
+  rv = fileUrl->GetFile(getter_AddRefs(file));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString type;
+  rv = mime->GetTypeFromFile(file, type);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString data;
+  rv = nsContentUtils::SlurpFileToString(file, data);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  aDataURL.AssignLiteral("data:");
+  AppendUTF8toUTF16(type, aDataURL);
+
+  nsAutoString filename;
+  rv = file->GetLeafName(filename);
+  if (NS_SUCCEEDED(rv)) {
+    nsAutoCString fn;
+    MsgEscapeURL(NS_ConvertUTF16toUTF8(filename),
+      nsINetUtil::ESCAPE_URL_FILE_BASENAME | nsINetUtil::ESCAPE_URL_FORCED, fn);
+    if (!fn.IsEmpty()) {
+      aDataURL.AppendLiteral(";filename=");
+      aDataURL.Append(NS_ConvertUTF8toUTF16(fn));
+    }
+  }
+
+  aDataURL.AppendLiteral(";base64,");
+  char *result = PL_Base64Encode(data.get(), data.Length(), nullptr);
+  nsDependentCString base64data(result);
+  NS_ENSURE_SUCCESS(rv, rv);
+  AppendUTF8toUTF16(base64data, aDataURL);
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::BuildQuotedMessageAndSignature(void)
+{
+  //
+  // This should never happen...if it does, just bail out...
+  //
+  NS_ASSERTION(m_editor, "BuildQuotedMessageAndSignature but no editor!\n");
+  if (!m_editor)
+    return NS_ERROR_FAILURE;
+
+  // We will fire off the quote operation and wait for it to
+  // finish before we actually do anything with Ender...
+  return QuoteOriginalMessage();
+}
+
+//
+// This will process the signature file for the user. This method
+// will always append the results to the mMsgBody member variable.
+//
+nsresult
+nsMsgCompose::ProcessSignature(nsIMsgIdentity *identity, bool aQuoted, nsString *aMsgBody)
+{
+  nsresult    rv = NS_OK;
+
+  // Now, we can get sort of fancy. This is the time we need to check
+  // for all sorts of user defined stuff, like signatures and editor
+  // types and the like!
+  //
+  //    user_pref(".....sig_file", "y:\\sig.html");
+  //    user_pref(".....attach_signature", true);
+  //    user_pref(".....htmlSigText", "unicode sig");
+  //
+  // Note: We will have intelligent signature behavior in that we
+  // look at the signature file first...if the extension is .htm or
+  // .html, we assume its HTML, otherwise, we assume it is plain text
+  //
+  // ...and that's not all! What we will also do now is look and see if
+  // the file is an image file. If it is an image file, then we should
+  // insert the correct HTML into the composer to have it work, but if we
+  // are doing plain text compose, we should insert some sort of message
+  // saying "Image Signature Omitted" or something (not done yet).
+  //
+  // If there's a sig pref, it will only be used if there is no sig file defined,
+  // thus if attach_signature is checked, htmlSigText is ignored (bug 324495).
+  // Plain-text signatures may or may not have a trailing line break (bug 428040).
+
+  nsAutoCString sigNativePath;
+  bool          attachFile = false;
+  bool          useSigFile = false;
+  bool          htmlSig = false;
+  bool          imageSig = false;
+  nsAutoString  sigData;
+  nsAutoString sigOutput;
+  int32_t      reply_on_top = 0;
+  bool         sig_bottom = true;
+  bool          suppressSigSep = false;
+
+  nsCOMPtr<nsIFile> sigFile;
+  if (identity)
+  {
+    if (!CheckIncludeSignaturePrefs(identity))
+      return NS_OK;
+
+    identity->GetReplyOnTop(&reply_on_top);
+    identity->GetSigBottom(&sig_bottom);
+    identity->GetSuppressSigSep(&suppressSigSep);
+
+    rv = identity->GetAttachSignature(&attachFile);
+    if (NS_SUCCEEDED(rv) && attachFile)
+    {
+      rv = identity->GetSignature(getter_AddRefs(sigFile));
+      if (NS_SUCCEEDED(rv) && sigFile) {
+        rv = sigFile->GetNativePath(sigNativePath);
+        if (NS_SUCCEEDED(rv) && !sigNativePath.IsEmpty()) {
+          bool exists = false;
+          sigFile->Exists(&exists);
+          if (exists) {
+            useSigFile = true; // ok, there's a signature file
+
+            // Now, most importantly, we need to figure out what the content type is for
+            // this signature...if we can't, we assume text
+            nsAutoCString sigContentType;
+            nsresult rv2; // don't want to clobber the other rv
+            nsCOMPtr<nsIMIMEService> mimeFinder (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv2));
+            if (NS_SUCCEEDED(rv2)) {
+              rv2 = mimeFinder->GetTypeFromFile(sigFile, sigContentType);
+              if (NS_SUCCEEDED(rv2)) {
+                if (StringBeginsWith(sigContentType, NS_LITERAL_CSTRING("image/"), nsCaseInsensitiveCStringComparator()))
+                  imageSig = true;
+                else if (sigContentType.Equals(TEXT_HTML, nsCaseInsensitiveCStringComparator()))
+                  htmlSig = true;
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+
+  // Unless signature to be attached from file, use preference value;
+  // the htmlSigText value is always going to be treated as html if
+  // the htmlSigFormat pref is true, otherwise it is considered text
+  nsAutoString prefSigText;
+  if (identity && !attachFile)
+    identity->GetHtmlSigText(prefSigText);
+  // Now, if they didn't even want to use a signature, we should
+  // just return nicely.
+  //
+  if ((!useSigFile  && prefSigText.IsEmpty()) || NS_FAILED(rv))
+    return NS_OK;
+
+  static const char      htmlBreak[] = "<br>";
+  static const char      dashes[] = "-- ";
+  static const char      htmlsigopen[] = "<div class=\"moz-signature\">";
+  static const char      htmlsigclose[] = "</div>";    /* XXX: Due to a bug in
+                             4.x' HTML editor, it will not be able to
+                             break this HTML sig, if quoted (for the user to
+                             interleave a comment). */
+  static const char      _preopen[] = "<pre class=\"moz-signature\" cols=%d>";
+  char*                  preopen;
+  static const char      preclose[] = "</pre>";
+
+  int32_t wrapLength = 72; // setup default value in case GetWrapLength failed
+  GetWrapLength(&wrapLength);
+  preopen = PR_smprintf(_preopen, wrapLength);
+  if (!preopen)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  bool paragraphMode =
+    mozilla::Preferences::GetBool("mail.compose.default_to_paragraph", false);
+
+  if (imageSig)
+  {
+    // We have an image signature. If we're using the in HTML composer, we
+    // should put in the appropriate HTML for inclusion, otherwise, do nothing.
+    if (m_composeHTML)
+    {
+      if (!paragraphMode)
+        sigOutput.AppendLiteral(htmlBreak);
+      sigOutput.AppendLiteral(htmlsigopen);
+      if ((mType == nsIMsgCompType::NewsPost || !suppressSigSep) &&
+          (reply_on_top != 1 || sig_bottom || !aQuoted)) {
+        sigOutput.AppendLiteral(dashes);
+      }
+
+      sigOutput.AppendLiteral(htmlBreak);
+      sigOutput.AppendLiteral("<img src='");
+
+      nsCOMPtr<nsIURI> fileURI;
+      nsresult rv = NS_NewFileURI(getter_AddRefs(fileURI), sigFile);
+      NS_ENSURE_SUCCESS(rv, rv);
+      nsCString fileURL;
+      fileURI->GetSpec(fileURL);
+
+      nsString dataURL;
+      rv = DataURLForFileURL(NS_ConvertUTF8toUTF16(fileURL), dataURL);
+      if (NS_SUCCEEDED(rv)) {
+        sigOutput.Append(dataURL);
+      }
+      sigOutput.AppendLiteral("' border=0>");
+      sigOutput.AppendLiteral(htmlsigclose);
+    }
+  }
+  else if (useSigFile)
+  {
+    // is this a text sig with an HTML editor?
+    if ( (m_composeHTML) && (!htmlSig) ) {
+      ConvertTextToHTML(sigFile, sigData);
+    }
+    // is this a HTML sig with a text window?
+    else if ( (!m_composeHTML) && (htmlSig) ) {
+      ConvertHTMLToText(sigFile, sigData);
+    }
+    else { // We have a match...
+      LoadDataFromFile(sigFile, sigData);  // Get the data!
+      ReplaceFileURLs(sigData);
+    }
+  }
+
+  // if we have a prefSigText, append it to sigData.
+  if (!prefSigText.IsEmpty())
+  {
+    // set htmlSig if the pref is supposed to contain HTML code, defaults to false
+    rv = identity->GetHtmlSigFormat(&htmlSig);
+    if (NS_FAILED(rv))
+      htmlSig = false;
+
+    if (!m_composeHTML)
+    {
+      if (htmlSig)
+        ConvertBufToPlainText(prefSigText, false, false, true, true);
+      sigData.Append(prefSigText);
+    }
+    else
+    {
+      if (!htmlSig)
+      {
+        char16_t* escaped = MsgEscapeHTML2(prefSigText.get(), prefSigText.Length());
+        if (escaped)
+        {
+          sigData.Append(escaped);
+          NS_Free(escaped);
+        }
+        else
+          sigData.Append(prefSigText);
+      }
+      else {
+        ReplaceFileURLs(prefSigText);
+        sigData.Append(prefSigText);
+      }
+    }
+  }
+
+  // post-processing for plain-text signatures to ensure we end in CR, LF, or CRLF
+  if (!htmlSig && !m_composeHTML)
+  {
+    int32_t sigLength = sigData.Length();
+    if (sigLength > 0 && !(sigData.CharAt(sigLength - 1) == '\r')
+                      && !(sigData.CharAt(sigLength - 1) == '\n'))
+      sigData.AppendLiteral(CRLF);
+  }
+
+  // Now that sigData holds data...if any, append it to the body in a nice
+  // looking manner
+  if (!sigData.IsEmpty())
+  {
+    if (m_composeHTML)
+    {
+      if (!paragraphMode)
+        sigOutput.AppendLiteral(htmlBreak);
+
+      if (htmlSig)
+        sigOutput.AppendLiteral(htmlsigopen);
+      else
+        sigOutput.Append(NS_ConvertASCIItoUTF16(preopen));
+    }
+
+    if ((reply_on_top != 1 || sig_bottom || !aQuoted) &&
+        sigData.Find("\r-- \r", true) < 0 &&
+        sigData.Find("\n-- \n", true) < 0 &&
+        sigData.Find("\n-- \r", true) < 0)
+    {
+      nsDependentSubstring firstFourChars(sigData, 0, 4);
+
+      if ((mType == nsIMsgCompType::NewsPost || !suppressSigSep) &&
+         !(firstFourChars.EqualsLiteral("-- \n") ||
+           firstFourChars.EqualsLiteral("-- \r")))
+      {
+        sigOutput.AppendLiteral(dashes);
+
+        if (!m_composeHTML || !htmlSig)
+          sigOutput.AppendLiteral(CRLF);
+        else if (m_composeHTML)
+          sigOutput.AppendLiteral(htmlBreak);
+      }
+    }
+
+    // add CRLF before signature for plain-text mode if signature comes before quote
+    if (!m_composeHTML && reply_on_top == 1 && !sig_bottom && aQuoted)
+      sigOutput.AppendLiteral(CRLF);
+
+    sigOutput.Append(sigData);
+
+    if (m_composeHTML)
+    {
+      if (htmlSig)
+        sigOutput.AppendLiteral(htmlsigclose);
+      else
+        sigOutput.AppendLiteral(preclose);
+    }
+  }
+
+  aMsgBody->Append(sigOutput);
+  PR_Free(preopen);
+  return NS_OK;
+}
+
+nsresult
+nsMsgCompose::BuildBodyMessageAndSignature()
+{
+  nsresult    rv = NS_OK;
+
+  //
+  // This should never happen...if it does, just bail out...
+  //
+  if (!m_editor)
+    return NS_ERROR_FAILURE;
+
+  //
+  // Now, we have the body so we can just blast it into the
+  // composition editor window.
+  //
+  nsAutoString   body;
+  m_compFields->GetBody(body);
+
+  /* Some time we want to add a signature and sometime we wont. Let's figure that now...*/
+  bool addSignature;
+  bool isQuoted = false;
+  switch (mType)
+  {
+    case nsIMsgCompType::ForwardInline :
+      addSignature = true;
+      isQuoted = true;
+      break;
+    case nsIMsgCompType::New :
+    case nsIMsgCompType::MailToUrl :    /* same as New */
+    case nsIMsgCompType::Reply :        /* should not happen! but just in case */
+    case nsIMsgCompType::ReplyAll :       /* should not happen! but just in case */
+    case nsIMsgCompType::ReplyToList :    /* should not happen! but just in case */
+    case nsIMsgCompType::ForwardAsAttachment :  /* should not happen! but just in case */
+    case nsIMsgCompType::NewsPost :
+    case nsIMsgCompType::ReplyToGroup :
+    case nsIMsgCompType::ReplyToSender :
+    case nsIMsgCompType::ReplyToSenderAndGroup :
+      addSignature = true;
+      break;
+
+    case nsIMsgCompType::Draft :
+    case nsIMsgCompType::Template :
+    case nsIMsgCompType::Redirect :
+      addSignature = false;
+      break;
+
+    default :
+      addSignature = false;
+      break;
+  }
+
+  nsAutoString tSignature;
+  if (addSignature)
+    ProcessSignature(m_identity, isQuoted, &tSignature);
+
+  // if type is new, but we have body, this is probably a mapi send, so we need to
+  // replace '\n' with <br> so that the line breaks won't be lost by html.
+  // if mailtourl, do the same.
+  if (m_composeHTML && (mType == nsIMsgCompType::New || mType == nsIMsgCompType::MailToUrl))
+    MsgReplaceSubstring(body, NS_LITERAL_STRING("\n"), NS_LITERAL_STRING("<br>"));
+
+  // Restore flowed text wrapping for Drafts/Templates.
+  // Look for unquoted lines - if we have an unquoted line
+  // that ends in a space, join this line with the next one
+  // by removing the end of line char(s).
+  int32_t wrapping_enabled = 0;
+  GetWrapLength(&wrapping_enabled);
+  if (!m_composeHTML && wrapping_enabled)
+  {
+    bool quote = false;
+    for (uint32_t i = 0; i < body.Length(); i ++)
+    {
+      if (i == 0 || body[i - 1] == '\n')  // newline
+      {
+        if (body[i] == '>')
+        {
+          quote = true;
+          continue;
+        }
+        nsString s(Substring(body, i, 10));
+        if (StringBeginsWith(s, NS_LITERAL_STRING("-- \r")) ||
+            StringBeginsWith(s, NS_LITERAL_STRING("-- \n")))
+        {
+          i += 4;
+          continue;
+        }
+        if (StringBeginsWith(s, NS_LITERAL_STRING("- -- \r")) ||
+            StringBeginsWith(s, NS_LITERAL_STRING("- -- \n")))
+        {
+          i += 6;
+          continue;
+        }
+      }
+      if (body[i] == '\n' && i > 1)
+      {
+        if (quote)
+        {
+          quote = false;
+          continue;   // skip quoted lines
+        }
+        uint32_t j = i - 1;  // look backward for space
+        if (body[j] == '\r')
+          j --;
+        if (body[j] == ' ')  // join this line with next one
+          body.Cut(j + 1, i - j);  // remove CRLF
+      }
+    }
+  }
+
+  nsString empty;
+  rv = ConvertAndLoadComposeWindow(empty, body, tSignature,
+                                   false, m_composeHTML);
+
+  return rv;
+}
+
+nsresult nsMsgCompose::NotifyStateListeners(int32_t aNotificationType, nsresult aResult)
+{
+
+  if (aNotificationType == nsIMsgComposeNotificationType::SaveInFolderDone)
+    ResetUrisForEmbeddedObjects();
+
+  nsTObserverArray<nsCOMPtr<nsIMsgComposeStateListener> >::ForwardIterator iter(mStateListeners);
+  nsCOMPtr<nsIMsgComposeStateListener> thisListener;
+
+  while (iter.HasMore())
+  {
+    thisListener = iter.GetNext();
+
+    switch (aNotificationType)
+    {
+    case nsIMsgComposeNotificationType::ComposeFieldsReady:
+      thisListener->NotifyComposeFieldsReady();
+      break;
+
+    case nsIMsgComposeNotificationType::ComposeProcessDone:
+      thisListener->ComposeProcessDone(aResult);
+      break;
+
+    case nsIMsgComposeNotificationType::SaveInFolderDone:
+      thisListener->SaveInFolderDone(m_folderName.get());
+      break;
+
+    case nsIMsgComposeNotificationType::ComposeBodyReady:
+      thisListener->NotifyComposeBodyReady();
+      break;
+
+    default:
+      NS_NOTREACHED("Unknown notification");
+      break;
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult nsMsgCompose::AttachmentPrettyName(const nsACString & scheme, const char* charset, nsACString& _retval)
+{
+  nsresult rv;
+
+  if (MsgLowerCaseEqualsLiteral(StringHead(scheme, 5), "file:"))
+  {
+    nsCOMPtr<nsIFile> file;
+    rv = NS_GetFileFromURLSpec(scheme,
+                               getter_AddRefs(file));
+    NS_ENSURE_SUCCESS(rv, rv);
+    nsAutoString leafName;
+    rv = file->GetLeafName(leafName);
+    NS_ENSURE_SUCCESS(rv, rv);
+    CopyUTF16toUTF8(leafName, _retval);
+    return rv;
+  }
+
+  // To work around a mysterious bug in VC++ 6.
+  const char* cset = (!charset || !*charset) ? "UTF-8" : charset;
+
+  nsCOMPtr<nsITextToSubURI> textToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsAutoString retUrl;
+  rv = textToSubURI->UnEscapeURIForUI(nsDependentCString(cset), scheme, retUrl);
+
+  if (NS_SUCCEEDED(rv)) {
+    CopyUTF16toUTF8(retUrl, _retval);
+  } else {
+    _retval.Assign(scheme);
+  }
+  if (MsgLowerCaseEqualsLiteral(StringHead(scheme, 5), "http:"))
+    _retval.Cut(0, 7);
+
+  return NS_OK;
+}
+
+/**
+ * Retrieve address book directories and mailing lists.
+ *
+ * @param aDirUri               directory URI
+ * @param allDirectoriesArray   retrieved directories and sub-directories
+ * @param allMailListArray      retrieved maillists
+ */
+nsresult
+nsMsgCompose::GetABDirAndMailLists(const nsACString& aDirUri,
+                                   nsCOMArray<nsIAbDirectory> &aDirArray,
+                                   nsTArray<nsMsgMailList> &aMailListArray)
+{
+  static bool collectedAddressbookFound;
+  if (aDirUri.EqualsLiteral(kMDBDirectoryRoot))
+    collectedAddressbookFound = false;
+
+  nsresult rv;
+  nsCOMPtr<nsIAbManager> abManager = do_GetService(NS_ABMANAGER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIAbDirectory> directory;
+  rv = abManager->GetDirectory(aDirUri, getter_AddRefs(directory));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsISimpleEnumerator> subDirectories;
+  if (NS_SUCCEEDED(directory->GetChildNodes(getter_AddRefs(subDirectories))) && subDirectories)
+  {
+    nsCOMPtr<nsISupports> item;
+    bool hasMore;
+    while (NS_SUCCEEDED(rv = subDirectories->HasMoreElements(&hasMore)) && hasMore)
+    {
+      if (NS_SUCCEEDED(subDirectories->GetNext(getter_AddRefs(item))))
+      {
+        directory = do_QueryInterface(item, &rv);
+        if (NS_SUCCEEDED(rv))
+        {
+          bool bIsMailList;
+
+          if (NS_SUCCEEDED(directory->GetIsMailList(&bIsMailList)) && bIsMailList)
+          {
+            aMailListArray.AppendElement(directory);
+            continue;
+          }
+
+          nsCString uri;
+          rv = directory->GetURI(uri);
+          NS_ENSURE_SUCCESS(rv, rv);
+
+          int32_t pos;
+          if (uri.EqualsLiteral(kPersonalAddressbookUri))
+            pos = 0;
+          else
+          {
+            uint32_t count = aDirArray.Count();
+
+            if (uri.EqualsLiteral(kCollectedAddressbookUri))
+            {
+              collectedAddressbookFound = true;
+              pos = count;
+            }
+            else
+            {
+              if (collectedAddressbookFound && count > 1)
+                pos = count - 1;
+              else
+                pos = count;
+            }
+          }
+
+          aDirArray.InsertObjectAt(directory, pos);
+          rv = GetABDirAndMailLists(uri, aDirArray, aMailListArray);
+        }
+      }
+    }
+  }
+  return rv;
+}
+
+/**
+ * Comparator for use with nsTArray::IndexOf to find a recipient.
+ * This comparator will check if an "address" is a mail list or not.
+ */
+struct nsMsgMailListComparator
+{
+  // A mail list will have one of the formats
+  //  1) "mName <mDescription>" when the list has a description
+  //  2) "mName <mName>" when the list lacks description
+  // A recipient is of the form "mName <mEmail>" - for equality the list
+  // name must be the same. The recipient "email" must match the list name for
+  // case 1, and the list description for case 2.
+  bool Equals(const nsMsgMailList &mailList,
+              const nsMsgRecipient &recipient) const {
+    if (!mailList.mName.Equals(recipient.mName,
+                               nsCaseInsensitiveStringComparator()))
+      return false;
+    return mailList.mDescription.IsEmpty() ?
+      mailList.mName.Equals(recipient.mEmail, nsCaseInsensitiveStringComparator()) :
+      mailList.mDescription.Equals(recipient.mEmail, nsCaseInsensitiveStringComparator());
+  }
+};
+
+/**
+ * Comparator for use with nsTArray::IndexOf to find a recipient.
+ */
+struct nsMsgRecipientComparator
+{
+  bool Equals(const nsMsgRecipient &recipient,
+              const nsMsgRecipient &recipientToFind) const {
+    if (!recipient.mEmail.Equals(recipientToFind.mEmail,
+                                 nsCaseInsensitiveStringComparator()))
+      return false;
+
+    if (!recipient.mName.Equals(recipientToFind.mName,
+                                nsCaseInsensitiveStringComparator()))
+      return false;
+
+    return true;
+  }
+};
+
+/**
+ * This function recursively resolves a mailing list and returns individual
+ * email addresses. Nested lists are supported. It maintains an array of
+ * already visited mailing lists to avoid endless recursion.
+ *
+ * @param aMailList             the list
+ * @param allDirectoriesArray   all directories
+ * @param allMailListArray      all maillists
+ * @param mailListProcessed     maillists processed (to avoid recursive lists)
+ * @param aListMembers          list members
+ */
+nsresult
+nsMsgCompose::ResolveMailList(nsIAbDirectory* aMailList,
+                              nsCOMArray<nsIAbDirectory> &allDirectoriesArray,
+                              nsTArray<nsMsgMailList> &allMailListArray,
+                              nsTArray<nsMsgMailList> &mailListProcessed,
+                              nsTArray<nsMsgRecipient> &aListMembers)
+{
+  nsresult rv = NS_OK;
+
+  nsCOMPtr<nsIMutableArray> mailListAddresses;
+  rv = aMailList->GetAddressLists(getter_AddRefs(mailListAddresses));
+  if (NS_FAILED(rv))
+    return rv;
+
+  uint32_t nbrAddresses = 0;
+  mailListAddresses->GetLength(&nbrAddresses);
+  for (uint32_t i = 0; i < nbrAddresses; i++)
+  {
+    nsCOMPtr<nsIAbCard> existingCard(do_QueryElementAt(mailListAddresses, i, &rv));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsMsgRecipient newRecipient;
+
+    rv = existingCard->GetDisplayName(newRecipient.mName);
+    NS_ENSURE_SUCCESS(rv, rv);
+    rv = existingCard->GetPrimaryEmail(newRecipient.mEmail);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    if (newRecipient.mName.IsEmpty() && newRecipient.mEmail.IsEmpty()) {
+      continue;
+    }
+
+    // First check if it's a mailing list.
+    size_t index = allMailListArray.IndexOf(newRecipient, 0, nsMsgMailListComparator());
+    if (index != allMailListArray.NoIndex && allMailListArray[index].mDirectory)
+    {
+      // Check if maillist processed.
+      if (mailListProcessed.Contains(newRecipient, nsMsgMailListComparator())) {
+        continue;
+      }
+
+      nsCOMPtr<nsIAbDirectory> directory2(allMailListArray[index].mDirectory);
+
+      // Add mailList to mailListProcessed.
+      mailListProcessed.AppendElement(directory2);
+
+      // Resolve mailList members.
+      rv = ResolveMailList(directory2,
+                           allDirectoriesArray,
+                           allMailListArray,
+                           mailListProcessed,
+                           aListMembers);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      continue;
+    }
+
+    // Check if recipient is in aListMembers.
+    if (aListMembers.Contains(newRecipient, nsMsgRecipientComparator())) {
+      continue;
+    }
+
+    // Now we need to insert the new address into the list of recipients.
+    newRecipient.mCard = existingCard;
+    newRecipient.mDirectory = aMailList;
+
+    aListMembers.AppendElement(newRecipient);
+  }
+
+  return rv;
+}
+
+/**
+ * Lookup the recipients as specified in the compose fields (To, Cc, Bcc)
+ * in the address books and return an array of individual recipients.
+ * Mailing lists are replaced by the cards they contain, nested and recursive
+ * lists are taken care of, recipients contained in multiple lists are only
+ * added once.
+ *
+ * @param recipientsList        (out) recipient array
+ */
+nsresult
+nsMsgCompose::LookupAddressBook(RecipientsArray &recipientsList)
+{
+  nsresult rv = NS_OK;
+
+  // First, build some arrays with the original recipients.
+
+  nsAutoString originalRecipients[MAX_OF_RECIPIENT_ARRAY];
+  m_compFields->GetTo(originalRecipients[0]);
+  m_compFields->GetCc(originalRecipients[1]);
+  m_compFields->GetBcc(originalRecipients[2]);
+
+  for (uint32_t i = 0; i < MAX_OF_RECIPIENT_ARRAY; ++i)
+  {
+    if (originalRecipients[i].IsEmpty())
+      continue;
+
+    rv = m_compFields->SplitRecipientsEx(originalRecipients[i],
+                                         recipientsList[i]);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  // Then look them up in the Addressbooks
+  bool stillNeedToSearch = true;
+  nsCOMPtr<nsIAbDirectory> abDirectory;
+  nsCOMPtr<nsIAbCard> existingCard;
+  nsTArray<nsMsgMailList> mailListArray;
+  nsTArray<nsMsgMailList> mailListProcessed;
+
+  nsCOMArray<nsIAbDirectory> addrbookDirArray;
+  rv = GetABDirAndMailLists(NS_LITERAL_CSTRING(kAllDirectoryRoot),
+                            addrbookDirArray, mailListArray);
+  if (NS_FAILED(rv))
+    return rv;
+
+  nsString dirPath;
+  uint32_t nbrAddressbook = addrbookDirArray.Count();
+
+  for (uint32_t k = 0; k < nbrAddressbook && stillNeedToSearch; ++k)
+  {
+    // Avoid recursive mailing lists.
+    if (abDirectory && (addrbookDirArray[k] == abDirectory))
+    {
+      stillNeedToSearch = false;
+      break;
+    }
+
+    abDirectory = addrbookDirArray[k];
+    if (!abDirectory)
+      continue;
+
+    stillNeedToSearch = false;
+    for (uint32_t i = 0; i < MAX_OF_RECIPIENT_ARRAY; i ++)
+    {
+      mailListProcessed.Clear();
+
+      // Note: We check this each time to allow for length changes.
+      for (uint32_t j = 0; j < recipientsList[i].Length(); j++)
+      {
+        nsMsgRecipient &recipient = recipientsList[i][j];
+        if (!recipient.mDirectory)
+        {
+          // First check if it's a mailing list.
+          size_t index = mailListArray.IndexOf(recipient, 0, nsMsgMailListComparator());
+          if (index != mailListArray.NoIndex && mailListArray[index].mDirectory)
+          {
+            // Check mailList Processed.
+            if (mailListProcessed.Contains(recipient, nsMsgMailListComparator())) {
+              // Remove from recipientsList.
+              recipientsList[i].RemoveElementAt(j--);
+              continue;
+            }
+
+            nsCOMPtr<nsIAbDirectory> directory(mailListArray[index].mDirectory);
+
+            // Add mailList to mailListProcessed.
+            mailListProcessed.AppendElement(directory);
+
+            // Resolve mailList members.
+            nsTArray<nsMsgRecipient> members;
+            rv = ResolveMailList(directory,
+                                 addrbookDirArray,
+                                 mailListArray,
+                                 mailListProcessed,
+                                 members);
+            NS_ENSURE_SUCCESS(rv, rv);
+
+            // Remove mailList from recipientsList.
+            recipientsList[i].RemoveElementAt(j);
+
+            // Merge members into recipientsList[i].
+            uint32_t pos = 0;
+            for (uint32_t c = 0; c < members.Length(); c++)
+            {
+              nsMsgRecipient &member = members[c];
+              if (!recipientsList[i].Contains(member, nsMsgRecipientComparator())) {
+                recipientsList[i].InsertElementAt(j + pos, member);
+                pos++;
+              }
+            }
+          }
+          else
+          {
+            // Find a card that contains this e-mail address.
+            rv = abDirectory->CardForEmailAddress(NS_ConvertUTF16toUTF8(recipient.mEmail),
+                                                  getter_AddRefs(existingCard));
+            if (NS_SUCCEEDED(rv) && existingCard)
+            {
+              recipient.mCard = existingCard;
+              recipient.mDirectory = abDirectory;
+            }
+            else
+            {
+              stillNeedToSearch = true;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::ExpandMailingLists()
+{
+  RecipientsArray recipientsList;
+  nsresult rv = LookupAddressBook(recipientsList);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // Reset the final headers with the expanded mailing lists.
+  nsAutoString recipientsStr;
+
+  for (int i = 0; i < MAX_OF_RECIPIENT_ARRAY; ++i)
+  {
+    uint32_t nbrRecipients = recipientsList[i].Length();
+    if (nbrRecipients == 0)
+      continue;
+    recipientsStr.Truncate();
+
+    // Note: We check this each time to allow for length changes.
+    for (uint32_t j = 0; j < recipientsList[i].Length(); ++j)
+    {
+      nsMsgRecipient &recipient = recipientsList[i][j];
+
+      if (!recipientsStr.IsEmpty())
+        recipientsStr.Append(char16_t(','));
+      nsAutoString address;
+      MakeMimeAddress(recipient.mName, recipient.mEmail, address);
+      recipientsStr.Append(address);
+
+      if (recipient.mCard)
+      {
+        bool readOnly;
+        rv = recipient.mDirectory->GetReadOnly(&readOnly);
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        // Bump the popularity index for this card since we are about to send
+        // e-mail to it.
+        if (!readOnly)
+        {
+          uint32_t popularityIndex = 0;
+          if (NS_FAILED(recipient.mCard->GetPropertyAsUint32(
+                kPopularityIndexProperty, &popularityIndex)))
+          {
+            // TB 2 wrote the popularity value as hex, so if we get here,
+            // then we've probably got a hex value. We'll convert it back
+            // to decimal, as that's the best we can do.
+
+            nsCString hexPopularity;
+            if (NS_SUCCEEDED(recipient.mCard->GetPropertyAsAUTF8String(
+                kPopularityIndexProperty, hexPopularity)))
+            {
+              nsresult errorCode = NS_OK;
+              popularityIndex = hexPopularity.ToInteger(&errorCode, 16);
+              if (NS_FAILED(errorCode))
+                // We failed, just set it to zero.
+                popularityIndex = 0;
+            }
+            else
+              // We couldn't get it as a string either, so just reset to zero.
+              popularityIndex = 0;
+          }
+
+          recipient.mCard->SetPropertyAsUint32(kPopularityIndexProperty,
+                                               ++popularityIndex);
+          recipient.mDirectory->ModifyCard(recipient.mCard);
+        }
+      }
+    }
+
+    switch (i)
+    {
+    case 0: m_compFields->SetTo(recipientsStr);  break;
+    case 1: m_compFields->SetCc(recipientsStr);  break;
+    case 2: m_compFields->SetBcc(recipientsStr); break;
+    }
+  }
+
+  return NS_OK;
+}
+
+/**
+ * This function implements the decision logic for delivery format 'Auto-Detect',
+ * including optional 'Auto-Downgrade' behaviour for HTML messages considered
+ * convertible (silent, "lossless" conversion to plain text).
+ * @param aConvertible  the result of analysing message body convertibility:
+ *                      nsIMsgCompConvertible::Plain | Yes | Altering | No
+ * @return              nsIMsgCompSendFormat::AskUser | PlainText | HTML | Both
+ */
+NS_IMETHODIMP
+nsMsgCompose::DetermineHTMLAction(int32_t aConvertible, int32_t *result)
+{
+  NS_ENSURE_ARG_POINTER(result);
+  nsresult rv;
+
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // *** Message-centric Auto-Downgrade ***
+  // If the message has practically no HTML formatting,
+  // AND if user accepts auto-downgrading (send options pref),
+  // bypass auto-detection of recipients' preferences and just
+  // send the message as plain text (silent, "lossless" conversion);
+  // which will also avoid asking for newsgroups for this typical scenario.
+  bool autoDowngrade = true;
+  rv = prefBranch->GetBoolPref("mailnews.sendformat.auto_downgrade", &autoDowngrade);
+  NS_ENSURE_SUCCESS(rv, rv);
+  if (autoDowngrade && (aConvertible == nsIMsgCompConvertible::Plain))
+  {
+    *result = nsIMsgCompSendFormat::PlainText;
+    return NS_OK;
+  }
+
+  // *** Newsgroups ***
+  // Right now, we don't have logic for newsgroups for intelligent send
+  // preferences. Therefore, bail out early and save us a lot of work if there
+  // are newsgroups.
+
+  nsAutoString newsgroups;
+  m_compFields->GetNewsgroups(newsgroups);
+
+  if (!newsgroups.IsEmpty())
+  {
+    *result = nsIMsgCompSendFormat::AskUser;
+    return NS_OK;
+  }
+
+  // *** Recipient-Centric Auto-Detect ***
+
+  RecipientsArray recipientsList;
+  rv = LookupAddressBook(recipientsList);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // Finally return the list of non-HTML recipients if requested and/or rebuilt
+  // the recipient field. Also, check for domain preference when preferFormat
+  // is unknown.
+  nsString plaintextDomains;
+  nsString htmlDomains;
+
+  if (prefBranch)
+  {
+    NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.plaintext_domains",
+                                       EmptyString(), plaintextDomains);
+    NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.html_domains",
+                                       EmptyString(), htmlDomains);
+  }
+
+  // allHTML and allPlain are summary recipient scopes of format preference
+  // according to address book and send options for recipient-centric Auto-Detect,
+  // used by Auto-Detect to determine the appropriate message delivery format.
+
+  // allHtml: All recipients prefer HTML.
+  bool allHtml = true;
+
+  // allPlain: All recipients prefer Plain Text.
+  bool allPlain = true;
+
+  // Exit the loop early if allHtml and allPlain both decay to false to save us
+  // some work.
+  for (int i = 0; i < MAX_OF_RECIPIENT_ARRAY && (allHtml || allPlain); ++i)
+  {
+    uint32_t nbrRecipients = recipientsList[i].Length();
+    for (uint32_t j = 0; j < nbrRecipients && (allHtml || allPlain); ++j)
+    {
+      nsMsgRecipient &recipient = recipientsList[i][j];
+      uint32_t preferFormat = nsIAbPreferMailFormat::unknown;
+      if (recipient.mCard)
+      {
+        recipient.mCard->GetPropertyAsUint32(kPreferMailFormatProperty,
+          &preferFormat);
+      }
+
+      // if we don't have a prefer format for a recipient, check the domain in
+      // case we have a format defined for it
+      if (preferFormat == nsIAbPreferMailFormat::unknown &&
+          (!plaintextDomains.IsEmpty() || !htmlDomains.IsEmpty()))
+      {
+        int32_t atPos = recipient.mEmail.FindChar('@');
+        if (atPos < 0)
+          continue;
+
+        nsDependentSubstring emailDomain = Substring(recipient.mEmail,
+                                                     atPos + 1);
+        if (IsInDomainList(emailDomain, plaintextDomains))
+          preferFormat = nsIAbPreferMailFormat::plaintext;
+        else if (IsInDomainList(emailDomain, htmlDomains))
+          preferFormat = nsIAbPreferMailFormat::html;
+      }
+
+      // Determine the delivery format preference of this recipient and adjust
+      // the summary recipient scopes of the message accordingly.
+      switch (preferFormat)
+      {
+      case nsIAbPreferMailFormat::html:
+        allPlain = false;
+        break;
+
+      case nsIAbPreferMailFormat::plaintext:
+        allHtml = false;
+        break;
+
+      default: // nsIAbPreferMailFormat::unknown
+        allHtml = false;
+        allPlain = false;
+        break;
+      }
+    }
+  }
+
+  // Here's the final part of recipient-centric Auto-Detect logic where we set
+  // the actual send format (aka delivery format) after analysing recipients'
+  // format preferences above.
+
+  // If all recipients prefer HTML, then return HTML.
+  if (allHtml)
+  {
+    *result = nsIMsgCompSendFormat::HTML;
+    return NS_OK;
+  }
+
+  // If all recipients prefer plaintext, silently strip *all* HTML formatting,
+  // regardless of (non-)convertibility, and send the message as plaintext.
+  // **ToDo: UX-error-prevention, UX-wysiwyg: warn against dataloss potential.**
+  if (allPlain)
+  {
+    *result = nsIMsgCompSendFormat::PlainText;
+    return NS_OK;
+  }
+
+  // Otherwise, check the preference to see what action we should default to.
+  // This pref covers all recipient scopes involving prefers-plain (except allplain)
+  // and prefers-unknown. So we are mixing format conflict resolution options for
+  // prefers-plain with default format setting for prefers-unknown; not ideal.
+  int32_t action = nsIMsgCompSendFormat::AskUser;
+  rv = prefBranch->GetIntPref("mail.default_html_action", &action);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // If the action is a known send format, return the value to send in that format.
+  // Otherwise, ask the user.
+  // Note that the preference may default to 0 (Ask), which is not a valid value
+  // for the following enum.
+  if (action == nsIMsgCompSendFormat::PlainText ||
+      action == nsIMsgCompSendFormat::HTML ||
+      action == nsIMsgCompSendFormat::Both)
+  {
+    *result = action;
+    return NS_OK;
+  }
+
+  // At this point, ask the user.
+  *result = nsIMsgCompSendFormat::AskUser;
+  return NS_OK;
+}
+
+/* Decides which tags trigger which convertible mode, i.e. here is the logic
+   for BodyConvertible */
+// Helper function. Parameters are not checked.
+nsresult nsMsgCompose::TagConvertible(nsIDOMElement *node,  int32_t *_retval)
+{
+    nsresult rv;
+
+    *_retval = nsIMsgCompConvertible::No;
+
+    uint16_t nodeType;
+    rv = node->GetNodeType(&nodeType);
+    if (NS_FAILED(rv))
+      return rv;
+
+    nsAutoString element;
+    rv = node->GetNodeName(element);
+    if (NS_FAILED(rv))
+      return rv;
+
+    nsCOMPtr<nsIDOMNode> pItem;
+
+    // style attribute on any element can change layout in any way, so that is not convertible.
+    nsAutoString attribValue;
+    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("style"), attribValue)) &&
+        !attribValue.IsEmpty())
+    {
+      *_retval = nsIMsgCompConvertible::No;
+      return NS_OK;
+    }
+
+    // moz-* classes are used internally by the editor and mail composition
+    // (like moz-cite or moz-signature). Those can be discarded.
+    // But any other ones are unconvertible. Style can be attached to them or any
+    // other context (e.g. in microformats).
+    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("class"), attribValue)) &&
+        !attribValue.IsEmpty() &&
+        !StringBeginsWith(attribValue, NS_LITERAL_STRING("moz-"), nsCaseInsensitiveStringComparator()))
+    {
+      *_retval = nsIMsgCompConvertible::No;
+      return NS_OK;
+    }
+    // ID attributes can contain attached style/context or be target of links
+    // so we should preserve them.
+    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("id"), attribValue)) &&
+        !attribValue.IsEmpty())
+    {
+      *_retval = nsIMsgCompConvertible::No;
+      return NS_OK;
+    }
+    if      ( // some "simple" elements without "style" attribute
+              element.LowerCaseEqualsLiteral("br") ||
+              element.LowerCaseEqualsLiteral("p") ||
+              element.LowerCaseEqualsLiteral("pre") ||
+              element.LowerCaseEqualsLiteral("tt") ||
+              element.LowerCaseEqualsLiteral("html") ||
+              element.LowerCaseEqualsLiteral("head") ||
+              element.LowerCaseEqualsLiteral("meta") ||
+              element.LowerCaseEqualsLiteral("title")
+            )
+    {
+      *_retval = nsIMsgCompConvertible::Plain;
+    }
+    else if (
+              //element.LowerCaseEqualsLiteral("blockquote") || // see below
+              element.LowerCaseEqualsLiteral("ul") ||
+              element.LowerCaseEqualsLiteral("ol") ||
+              element.LowerCaseEqualsLiteral("li") ||
+              element.LowerCaseEqualsLiteral("dl") ||
+              element.LowerCaseEqualsLiteral("dt") ||
+              element.LowerCaseEqualsLiteral("dd")
+            )
+    {
+      *_retval = nsIMsgCompConvertible::Yes;
+    }
+    else if (
+              //element.LowerCaseEqualsLiteral("a") || // see below
+              element.LowerCaseEqualsLiteral("h1") ||
+              element.LowerCaseEqualsLiteral("h2") ||
+              element.LowerCaseEqualsLiteral("h3") ||
+              element.LowerCaseEqualsLiteral("h4") ||
+              element.LowerCaseEqualsLiteral("h5") ||
+              element.LowerCaseEqualsLiteral("h6") ||
+              element.LowerCaseEqualsLiteral("hr") ||
+              (
+                mConvertStructs
+                &&
+                (
+                  element.LowerCaseEqualsLiteral("em") ||
+                  element.LowerCaseEqualsLiteral("strong") ||
+                  element.LowerCaseEqualsLiteral("code") ||
+                  element.LowerCaseEqualsLiteral("b") ||
+                  element.LowerCaseEqualsLiteral("i") ||
+                  element.LowerCaseEqualsLiteral("u")
+                )
+              )
+            )
+    {
+      *_retval = nsIMsgCompConvertible::Altering;
+    }
+    else if (element.LowerCaseEqualsLiteral("body"))
+    {
+      *_retval = nsIMsgCompConvertible::Plain;
+
+        bool hasAttribute;
+        nsAutoString color;
+        if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("background"), &hasAttribute))
+            && hasAttribute)  // There is a background image
+          *_retval = nsIMsgCompConvertible::No;
+        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("text"), &hasAttribute)) &&
+                 hasAttribute &&
+                 NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("text"), color)) &&
+                 !color.EqualsLiteral("#000000")) {
+          *_retval = nsIMsgCompConvertible::Altering;
+        }
+        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("bgcolor"), &hasAttribute)) &&
+                 hasAttribute &&
+                 NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("bgcolor"), color)) &&
+                 !color.LowerCaseEqualsLiteral("#ffffff")) {
+          *_retval = nsIMsgCompConvertible::Altering;
+        }
+        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("dir"), &hasAttribute))
+            && hasAttribute)  // dir=rtl attributes should not downconvert
+          *_retval = nsIMsgCompConvertible::No;
+
+        //ignore special color setting for link, vlink and alink at this point.
+    }
+    else if (element.LowerCaseEqualsLiteral("blockquote"))
+    {
+      // Skip <blockquote type="cite">
+      *_retval = nsIMsgCompConvertible::Yes;
+
+      if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("type"), attribValue)) &&
+          attribValue.LowerCaseEqualsLiteral("cite"))
+      {
+        *_retval = nsIMsgCompConvertible::Plain;
+      }
+    }
+    else if (
+              element.LowerCaseEqualsLiteral("div") ||
+              element.LowerCaseEqualsLiteral("span") ||
+              element.LowerCaseEqualsLiteral("a")
+            )
+    {
+      /* Do some special checks for these tags. They are inside this |else if|
+         for performance reasons */
+
+      // Maybe, it's an <a> element inserted by another recognizer (e.g. 4.x')
+      if (element.LowerCaseEqualsLiteral("a"))
+      {
+        /* Ignore anchor tag, if the URI is the same as the text
+           (as inserted by recognizers) */
+        *_retval = nsIMsgCompConvertible::Altering;
+
+          nsAutoString hrefValue;
+          bool hasChild;
+          if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("href"), hrefValue)) &&
+              NS_SUCCEEDED(node->HasChildNodes(&hasChild)) && hasChild)
+          {
+            nsCOMPtr<nsIDOMNodeList> children;
+            if (NS_SUCCEEDED(node->GetChildNodes(getter_AddRefs(children))) &&
+                children &&
+                NS_SUCCEEDED(children->Item(0, getter_AddRefs(pItem))) &&
+                pItem)
+            {
+              nsAutoString textValue;
+              if (NS_SUCCEEDED(pItem->GetNodeValue(textValue)) &&
+                  textValue == hrefValue)
+                *_retval = nsIMsgCompConvertible::Plain;
+            }
+          }
+      }
+
+      // Lastly, test, if it is just a "simple" <div> or <span>
+      else if (
+                element.LowerCaseEqualsLiteral("div") ||
+                element.LowerCaseEqualsLiteral("span")
+              )
+      {
+        *_retval = nsIMsgCompConvertible::Plain;
+      }
+    }
+
+    return rv;
+}
+
+nsresult nsMsgCompose::_NodeTreeConvertible(nsIDOMElement *node, int32_t *_retval)
+{
+    NS_ENSURE_TRUE(node && _retval, NS_ERROR_NULL_POINTER);
+
+    nsresult rv;
+    int32_t result;
+
+    // Check this node
+    rv = TagConvertible(node, &result);
+    if (NS_FAILED(rv))
+        return rv;
+
+    // Walk tree recursively to check the children
+    bool hasChild;
+    if (NS_SUCCEEDED(node->HasChildNodes(&hasChild)) && hasChild)
+    {
+      nsCOMPtr<nsIDOMNodeList> children;
+      if (NS_SUCCEEDED(node->GetChildNodes(getter_AddRefs(children)))
+          && children)
+      {
+        uint32_t nbrOfElements;
+        rv = children->GetLength(&nbrOfElements);
+        for (uint32_t i = 0; NS_SUCCEEDED(rv) && i < nbrOfElements; i++)
+        {
+          nsCOMPtr<nsIDOMNode> pItem;
+          if (NS_SUCCEEDED(children->Item(i, getter_AddRefs(pItem)))
+              && pItem)
+          {
+            // We assume all nodes that are not elements are convertible,
+            // so only test elements.
+            nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(pItem);
+            if (domElement) {
+              int32_t curresult;
+              rv = _NodeTreeConvertible(domElement, &curresult);
+
+              if (NS_SUCCEEDED(rv) && curresult > result)
+                result = curresult;
+            }
+          }
+        }
+      }
+    }
+
+    *_retval = result;
+    return rv;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::BodyConvertible(int32_t *_retval)
+{
+    NS_ENSURE_ARG_POINTER(_retval);
+    NS_ENSURE_STATE(m_editor);
+
+    nsCOMPtr<nsIDOMDocument> rootDocument;
+    nsresult rv = m_editor->GetDocument(getter_AddRefs(rootDocument));
+    if (NS_FAILED(rv) || !rootDocument)
+      return rv;
+
+    // get the top level element, which contains <html>
+    nsCOMPtr<nsIDOMElement> rootElement;
+    rv = rootDocument->GetDocumentElement(getter_AddRefs(rootElement));
+    if (NS_FAILED(rv) || !rootElement)
+      return rv;
+
+    return _NodeTreeConvertible(rootElement, _retval);
+}
+
+NS_IMETHODIMP
+nsMsgCompose::GetIdentity(nsIMsgIdentity **aIdentity)
+{
+  NS_ENSURE_ARG_POINTER(aIdentity);
+  NS_IF_ADDREF(*aIdentity = m_identity);
+  return NS_OK;
+}
+
+/**
+ * Position above the quote, that is either <blockquote> or
+ * <div class="moz-cite-prefix"> or <div class="moz-forward-container">
+ * in an inline-forwarded message.
+ */
+nsresult
+nsMsgCompose::MoveToAboveQuote(void)
+{
+  nsCOMPtr<nsIDOMElement> rootElement;
+  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
+  if (NS_FAILED(rv) || !rootElement) {
+    return rv;
+  }
+
+  nsCOMPtr<nsIDOMNode> node;
+  nsAutoString attributeName;
+  nsAutoString attributeValue;
+  nsAutoString tagLocalName;
+  attributeName.AssignLiteral("class");
+
+  rv = rootElement->GetFirstChild(getter_AddRefs(node));
+  while (NS_SUCCEEDED(rv) && node) {
+    nsCOMPtr<nsIDOMElement> element = do_QueryInterface(node);
+    if (element) {
+      // First check for <blockquote>. This will most likely not trigger
+      // since well-behaved quotes are preceded by a cite prefix.
+      node->GetLocalName(tagLocalName);
+      if (tagLocalName.EqualsLiteral("blockquote")) {
+        break;
+      }
+
+      // Get the class value.
+      element->GetAttribute(attributeName, attributeValue);
+
+      // Now check for the cite prefix, so an element with
+      // class="moz-cite-prefix".
+      if (attributeValue.Find("moz-cite-prefix", true) != kNotFound) {
+        break;
+      }
+
+      // Next check for forwarded content.
+      // The forwarded part is inside an element with
+      // class="moz-forward-container".
+      if (attributeValue.Find("moz-forward-container", true) != kNotFound) {
+        break;
+      }
+    }
+
+    rv = node->GetNextSibling(getter_AddRefs(node));
+    if (NS_FAILED(rv) || !node) {
+      // No further siblings found, so we didn't find what we were looking for.
+      rv = NS_OK;
+      node = nullptr;
+      break;
+    }
+  }
+
+  // Now position. If no quote was found, we position to the very front.
+  int32_t offset = 0;
+  if (node) {
+    rv = GetChildOffset(node, rootElement, offset);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+  }
+  nsCOMPtr<nsISelection> selection;
+  m_editor->GetSelection(getter_AddRefs(selection));
+  if (selection)
+    rv = selection->Collapse(rootElement, offset);
+
+  return rv;
+}
+
+/**
+ * nsEditor::BeginningOfDocument() will position to the beginning of the document
+ * before the first editable element. It will position into a container.
+ * We need to be at the very front.
+ */
+nsresult
+nsMsgCompose::MoveToBeginningOfDocument(void)
+{
+  nsCOMPtr<nsIDOMElement> rootElement;
+  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
+  if (NS_FAILED(rv) || !rootElement) {
+    return rv;
+  }
+
+  nsCOMPtr<nsISelection> selection;
+  m_editor->GetSelection(getter_AddRefs(selection));
+  if (selection)
+    rv = selection->Collapse(rootElement, 0);
+
+  return rv;
+}
+
+/**
+ * M-C's nsEditor::EndOfDocument() will position to the end of the document
+ * but it will position into a container. We really need to position
+ * after the last container so we don't accidentally position into a
+ * <blockquote>. That's why we use our own function.
+ */
+nsresult
+nsMsgCompose::MoveToEndOfDocument(void)
+{
+  int32_t offset;
+  nsCOMPtr<nsIDOMElement> rootElement;
+  nsCOMPtr<nsIDOMNode> lastNode;
+  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
+  if (NS_FAILED(rv) || !rootElement) {
+    return rv;
+  }
+
+  rv = rootElement->GetLastChild(getter_AddRefs(lastNode));
+  if (NS_FAILED(rv) || !lastNode) {
+    return rv;
+  }
+
+  rv = GetChildOffset(lastNode, rootElement, offset);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsISelection> selection;
+  m_editor->GetSelection(getter_AddRefs(selection));
+  if (selection)
+    rv = selection->Collapse(rootElement, offset + 1);
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsMsgCompose::SetIdentity(nsIMsgIdentity *aIdentity)
+{
+  NS_ENSURE_ARG_POINTER(aIdentity);
+
+  m_identity = aIdentity;
+
+  nsresult rv;
+
+  if (! m_editor)
+    return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIDOMElement> rootElement;
+  rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
+  if (NS_FAILED(rv) || !rootElement)
+    return rv;
+
+  //First look for the current signature, if we have one
+  nsCOMPtr<nsIDOMNode> lastNode;
+  nsCOMPtr<nsIDOMNode> node;
+  nsCOMPtr<nsIDOMNode> tempNode;
+  nsAutoString tagLocalName;
+
+  rv = rootElement->GetLastChild(getter_AddRefs(lastNode));
+  if (NS_SUCCEEDED(rv) && lastNode)
+  {
+    node = lastNode;
+    // In html, the signature is inside an element with
+    // class="moz-signature"
+    bool signatureFound = false;
+    nsAutoString attributeName;
+    attributeName.AssignLiteral("class");
+
+    do
+    {
+      nsCOMPtr<nsIDOMElement> element = do_QueryInterface(node);
+      if (element)
+      {
+        nsAutoString attributeValue;
+
+        rv = element->GetAttribute(attributeName, attributeValue);
+
+        if (attributeValue.Find("moz-signature", true) != kNotFound) {
+          signatureFound = true;
+          break;
+        }
+      }
+    } while (!signatureFound &&
+             node &&
+             NS_SUCCEEDED(node->GetPreviousSibling(getter_AddRefs(node))));
+
+    if (signatureFound)
+    {
+      m_editor->BeginTransaction();
+      node->GetPreviousSibling(getter_AddRefs(tempNode));
+      rv = m_editor->DeleteNode(node);
+      if (NS_FAILED(rv))
+      {
+        m_editor->EndTransaction();
+        return rv;
+      }
+
+      // Also, remove the <br> right before the signature.
+      if (tempNode)
+      {
+        tempNode->GetLocalName(tagLocalName);
+        if (tagLocalName.EqualsLiteral("br"))
+          m_editor->DeleteNode(tempNode);
+      }
+      m_editor->EndTransaction();
+    }
+  }
+
+  if (!CheckIncludeSignaturePrefs(aIdentity))
+    return NS_OK;
+
+  // Then add the new one if needed
+  nsAutoString aSignature;
+
+  // No delimiter needed if not a compose window
+  bool isQuoted;
+  switch (mType)
+  {
+    case nsIMsgCompType::New :
+    case nsIMsgCompType::NewsPost :
+    case nsIMsgCompType::MailToUrl :
+    case nsIMsgCompType::ForwardAsAttachment :
+      isQuoted = false;
+      break;
+    default :
+      isQuoted = true;
+      break;
+  }
+
+  ProcessSignature(aIdentity, isQuoted, &aSignature);
+
+  if (!aSignature.IsEmpty())
+  {
+    TranslateLineEnding(aSignature);
+
+    m_editor->BeginTransaction();
+    int32_t reply_on_top = 0;
+    bool sig_bottom = true;
+    aIdentity->GetReplyOnTop(&reply_on_top);
+    aIdentity->GetSigBottom(&sig_bottom);
+    bool sigOnTop = (reply_on_top == 1 && !sig_bottom);
+    if (sigOnTop && isQuoted) {
+      rv = MoveToAboveQuote();
+    } else {
+      // Note: New messages aren't quoted so we always move to the end.
+      rv = MoveToEndOfDocument();
+    }
+
+    if (NS_SUCCEEDED(rv)) {
+      if (m_composeHTML) {
+        nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(m_editor));
+        rv = htmlEditor->InsertHTML(aSignature);
+      } else {
+        nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(m_editor));
+        rv = textEditor->InsertLineBreak();
+        InsertDivWrappedTextAtSelection(aSignature, NS_LITERAL_STRING("moz-signature"));
+      }
+    }
+    m_editor->EndTransaction();
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP nsMsgCompose::CheckCharsetConversion(nsIMsgIdentity *identity, char **fallbackCharset, bool *_retval)
+{
+  NS_ENSURE_ARG_POINTER(identity);
+  NS_ENSURE_ARG_POINTER(_retval);
+
+  // Kept around for legacy reasons. This method is supposed to check that the
+  // headers can be converted to the appropriate charset, but we don't support
+  // encoding headers to non-UTF-8, so this is now moot.
+  if (fallbackCharset)
+    *fallbackCharset = nullptr;
+  *_retval = true;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgCompose::GetDeliverMode(MSG_DeliverMode* aDeliverMode)
+{
+  NS_ENSURE_ARG_POINTER(aDeliverMode);
+  *aDeliverMode = mDeliverMode;
+  return NS_OK;
+}
+
+nsMsgMailList::nsMsgMailList(nsIAbDirectory* directory) :
+  mDirectory(directory)
+{
+  mDirectory->GetDirName(mName);
+  mDirectory->GetDescription(mDescription);
+
+  if (mDescription.IsEmpty())
+    mDescription = mName;
+
+  mDirectory = directory;
+}