Add m-esr52 at 52.6.0

8 files changed, 1354 insertions, 0 deletions

diff --git a/extensions/pref/autoconfig/src/moz.build b/extensions/pref/autoconfig/src/moz.build
new file mode 100644
index 000000000..3417269f0
--- /dev/null
+++ b/extensions/pref/autoconfig/src/moz.build
@@ -0,0 +1,18 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+UNIFIED_SOURCES += [
+    'nsAutoConfig.cpp',
+    'nsConfigFactory.cpp',
+    'nsJSConfigTriggers.cpp',
+    'nsReadConfig.cpp',
+]
+
+FINAL_LIBRARY = 'xul'
+
+FINAL_TARGET_FILES.defaults.autoconfig += [
+    'prefcalls.js',
+]
diff --git a/extensions/pref/autoconfig/src/nsAutoConfig.cpp b/extensions/pref/autoconfig/src/nsAutoConfig.cpp
new file mode 100644
index 000000000..08f406093
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsAutoConfig.cpp
@@ -0,0 +1,532 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsAutoConfig.h"
+#include "nsIURI.h"
+#include "nsIHttpChannel.h"
+#include "nsIFileStreams.h"
+#include "nsThreadUtils.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "prmem.h"
+#include "nsIObserverService.h"
+#include "nsLiteralString.h"
+#include "nsIPromptService.h"
+#include "nsIServiceManager.h"
+#include "nsIStringBundle.h"
+#include "nsContentUtils.h"
+#include "nsCRT.h"
+#include "nsNetCID.h"
+#include "nsNetUtil.h"
+#include "nspr.h"
+#include <algorithm>
+
+#include "mozilla/Logging.h"
+
+using mozilla::LogLevel;
+
+mozilla::LazyLogModule MCD("MCD");
+
+extern nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length,
+                                          const char *filename, 
+                                          bool bGlobalContext, 
+                                          bool bCallbacks, 
+                                          bool skipFirstLine);
+
+// nsISupports Implementation
+
+NS_IMPL_ISUPPORTS(nsAutoConfig, nsIAutoConfig, nsITimerCallback, nsIStreamListener, nsIObserver, nsIRequestObserver, nsISupportsWeakReference)
+
+nsAutoConfig::nsAutoConfig()
+{
+}
+
+nsresult nsAutoConfig::Init()
+{
+    // member initializers and constructor code
+
+    nsresult rv;
+    mLoaded = false;
+    
+    // Registering the object as an observer to the profile-after-change topic
+    nsCOMPtr<nsIObserverService> observerService =
+        do_GetService("@mozilla.org/observer-service;1", &rv);
+    if (NS_FAILED(rv)) 
+        return rv;
+
+    rv = observerService->AddObserver(this,"profile-after-change", true);
+    
+    return rv;
+}
+
+nsAutoConfig::~nsAutoConfig()
+{
+}
+
+// attribute string configURL
+NS_IMETHODIMP nsAutoConfig::GetConfigURL(char **aConfigURL)
+{
+    if (!aConfigURL) 
+        return NS_ERROR_NULL_POINTER;
+
+    if (mConfigURL.IsEmpty()) {
+        *aConfigURL = nullptr;
+        return NS_OK;
+    }
+    
+    *aConfigURL = ToNewCString(mConfigURL);
+    if (!*aConfigURL)
+        return NS_ERROR_OUT_OF_MEMORY;
+    return NS_OK;
+}
+NS_IMETHODIMP nsAutoConfig::SetConfigURL(const char *aConfigURL)
+{
+    if (!aConfigURL)
+        return NS_ERROR_NULL_POINTER;
+    mConfigURL.Assign(aConfigURL);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAutoConfig::OnStartRequest(nsIRequest *request, nsISupports *context)
+{
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsAutoConfig::OnDataAvailable(nsIRequest *request, 
+                              nsISupports *context,
+                              nsIInputStream *aIStream, 
+                              uint64_t aSourceOffset,
+                              uint32_t aLength)
+{    
+    uint32_t amt, size;
+    nsresult rv;
+    char buf[1024];
+    
+    while (aLength) {
+        size = std::min<size_t>(aLength, sizeof(buf));
+        rv = aIStream->Read(buf, size, &amt);
+        if (NS_FAILED(rv))
+            return rv;
+        mBuf.Append(buf, amt);
+        aLength -= amt;
+    }
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsAutoConfig::OnStopRequest(nsIRequest *request, nsISupports *context,
+                            nsresult aStatus)
+{
+    nsresult rv;
+
+    // If the request is failed, go read the failover.jsc file
+    if (NS_FAILED(aStatus)) {
+        MOZ_LOG(MCD, LogLevel::Debug, ("mcd request failed with status %x\n", aStatus));
+        return readOfflineFile();
+    }
+
+    // Checking for the http response, if failure go read the failover file.
+    nsCOMPtr<nsIHttpChannel> pHTTPCon(do_QueryInterface(request));
+    if (pHTTPCon) {
+        uint32_t httpStatus;
+        pHTTPCon->GetResponseStatus(&httpStatus);
+        if (httpStatus != 200) 
+        {
+            MOZ_LOG(MCD, LogLevel::Debug, ("mcd http request failed with status %x\n", httpStatus));
+            return readOfflineFile();
+        }
+    }
+    
+    // Send the autoconfig.jsc to javascript engine.
+    
+    rv = EvaluateAdminConfigScript(mBuf.get(), mBuf.Length(),
+                              nullptr, false,true, false);
+    if (NS_SUCCEEDED(rv)) {
+
+        // Write the autoconfig.jsc to failover.jsc (cached copy) 
+        rv = writeFailoverFile(); 
+
+        if (NS_FAILED(rv)) 
+            NS_WARNING("Error writing failover.jsc file");
+
+        // Releasing the lock to allow the main thread to start execution
+        mLoaded = true;  
+
+        return NS_OK;
+    }
+    // there is an error in parsing of the autoconfig file.
+    NS_WARNING("Error reading autoconfig.jsc from the network, reading the offline version");
+    return readOfflineFile();
+}
+
+// Notify method as a TimerCallBack function 
+NS_IMETHODIMP nsAutoConfig::Notify(nsITimer *timer) 
+{
+    downloadAutoConfig();
+    return NS_OK;
+}
+
+/* Observe() is called twice: once at the instantiation time and other 
+   after the profile is set. It doesn't do anything but return NS_OK during the
+   creation time. Second time it calls  downloadAutoConfig().
+*/
+
+NS_IMETHODIMP nsAutoConfig::Observe(nsISupports *aSubject, 
+                                    const char *aTopic, 
+                                    const char16_t *someData)
+{
+    nsresult rv = NS_OK;
+    if (!nsCRT::strcmp(aTopic, "profile-after-change")) {
+
+        // We will be calling downloadAutoConfig even if there is no profile 
+        // name. Nothing will be passed as a parameter to the URL and the
+        // default case will be picked up by the script.
+        
+        rv = downloadAutoConfig();
+
+    }  
+   
+    return rv;
+}
+
+nsresult nsAutoConfig::downloadAutoConfig()
+{
+    nsresult rv;
+    nsAutoCString emailAddr;
+    nsXPIDLCString urlName;
+    static bool firstTime = true;
+    
+    if (mConfigURL.IsEmpty()) {
+        MOZ_LOG(MCD, LogLevel::Debug, ("global config url is empty - did you set autoadmin.global_config_url?\n"));
+        NS_WARNING("AutoConfig called without global_config_url");
+        return NS_OK;
+    }
+    
+    // If there is an email address appended as an argument to the ConfigURL
+    // in the previous read, we need to remove it when timer kicks in and 
+    // downloads the autoconfig file again. 
+    // If necessary, the email address will be added again as an argument.
+    int32_t index = mConfigURL.RFindChar((char16_t)'?');
+    if (index != -1)
+        mConfigURL.Truncate(index);
+
+    // Clean up the previous read, the new read is going to use the same buffer
+    if (!mBuf.IsEmpty())
+        mBuf.Truncate(0);
+
+    // Get the preferences branch and save it to the member variable
+    if (!mPrefBranch) {
+        nsCOMPtr<nsIPrefService> prefs =
+            do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
+        if (NS_FAILED(rv)) 
+            return rv;
+    
+        rv = prefs->GetBranch(nullptr,getter_AddRefs(mPrefBranch));
+        if (NS_FAILED(rv))
+            return rv;
+    }
+    
+    // Check to see if the network is online/offline 
+    nsCOMPtr<nsIIOService> ios = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
+    if (NS_FAILED(rv)) 
+        return rv;
+    
+    bool offline;
+    rv = ios->GetOffline(&offline);
+    if (NS_FAILED(rv)) 
+        return rv;
+    
+    if (offline) {
+        bool offlineFailover;
+        rv = mPrefBranch->GetBoolPref("autoadmin.offline_failover", 
+                                      &offlineFailover);
+        // Read the failover.jsc if the network is offline and the pref says so
+        if (NS_SUCCEEDED(rv) && offlineFailover)
+            return readOfflineFile();
+    }
+
+    /* Append user's identity at the end of the URL if the pref says so.
+       First we are checking for the user's email address but if it is not
+       available in the case where the client is used without messenger, user's
+       profile name will be used as an unique identifier
+    */
+    bool appendMail;
+    rv = mPrefBranch->GetBoolPref("autoadmin.append_emailaddr", &appendMail);
+    if (NS_SUCCEEDED(rv) && appendMail) {
+        rv = getEmailAddr(emailAddr);
+        if (NS_SUCCEEDED(rv) && emailAddr.get()) {
+            /* Adding the unique identifier at the end of autoconfig URL. 
+               In this case the autoconfig URL is a script and 
+               emailAddr as passed as an argument 
+            */
+            mConfigURL.Append('?');
+            mConfigURL.Append(emailAddr); 
+        }
+    }
+    
+    // create a new url 
+    nsCOMPtr<nsIURI> url;
+    nsCOMPtr<nsIChannel> channel;
+    
+    rv = NS_NewURI(getter_AddRefs(url), mConfigURL.get(), nullptr, nullptr);
+    if (NS_FAILED(rv))
+    {
+        MOZ_LOG(MCD, LogLevel::Debug, ("failed to create URL - is autoadmin.global_config_url valid? - %s\n", mConfigURL.get()));
+        return rv;
+    }
+
+    MOZ_LOG(MCD, LogLevel::Debug, ("running MCD url %s\n", mConfigURL.get()));
+    // open a channel for the url
+    rv = NS_NewChannel(getter_AddRefs(channel),
+                       url,
+                       nsContentUtils::GetSystemPrincipal(),
+                       nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
+                       nsIContentPolicy::TYPE_OTHER,
+                       nullptr,  // loadGroup
+                       nullptr,  // aCallbacks
+                       nsIRequest::INHIBIT_PERSISTENT_CACHING |
+                       nsIRequest::LOAD_BYPASS_CACHE);
+
+    if (NS_FAILED(rv)) 
+        return rv;
+
+    rv = channel->AsyncOpen2(this);
+    if (NS_FAILED(rv)) {
+        readOfflineFile();
+        return rv;
+    }
+    
+    // Set a repeating timer if the pref is set.
+    // This is to be done only once.
+    // Also We are having the event queue processing only for the startup
+    // It is not needed with the repeating timer.
+    if (firstTime) {
+        firstTime = false;
+    
+        // Getting the current thread. If we start an AsyncOpen, the thread
+        // needs to wait before the reading of autoconfig is done
+
+        nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
+        NS_ENSURE_STATE(thread);
+    
+        /* process events until we're finished. AutoConfig.jsc reading needs
+           to be finished before the browser starts loading up
+           We are waiting for the mLoaded which will be set through 
+           onStopRequest or readOfflineFile methods
+           There is a possibility of deadlock so we need to make sure
+           that mLoaded will be set to true in any case (success/failure)
+        */
+        
+        while (!mLoaded)
+            NS_ENSURE_STATE(NS_ProcessNextEvent(thread));
+        
+        int32_t minutes;
+        rv = mPrefBranch->GetIntPref("autoadmin.refresh_interval", 
+                                     &minutes);
+        if (NS_SUCCEEDED(rv) && minutes > 0) {
+            // Create a new timer and pass this nsAutoConfig 
+            // object as a timer callback. 
+            mTimer = do_CreateInstance("@mozilla.org/timer;1",&rv);
+            if (NS_FAILED(rv)) 
+                return rv;
+            rv = mTimer->InitWithCallback(this, minutes * 60 * 1000, 
+                             nsITimer::TYPE_REPEATING_SLACK);
+            if (NS_FAILED(rv)) 
+                return rv;
+        }
+    } //first_time
+    
+    return NS_OK;
+} // nsPref::downloadAutoConfig()
+
+
+
+nsresult nsAutoConfig::readOfflineFile()
+{
+    nsresult rv;
+    
+    /* Releasing the lock to allow main thread to start 
+       execution. At this point we do not need to stall 
+       the thread since all network activities are done.
+    */
+    mLoaded = true; 
+
+    bool failCache;
+    rv = mPrefBranch->GetBoolPref("autoadmin.failover_to_cached", &failCache);
+    if (NS_SUCCEEDED(rv) && !failCache) {
+        // disable network connections and return.
+        
+        nsCOMPtr<nsIIOService> ios =
+            do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
+        if (NS_FAILED(rv)) 
+            return rv;
+        
+        bool offline;
+        rv = ios->GetOffline(&offline);
+        if (NS_FAILED(rv)) 
+            return rv;
+
+        if (!offline) {
+            rv = ios->SetOffline(true);
+            if (NS_FAILED(rv)) 
+                return rv;
+        }
+        
+        // lock the "network.online" prference so user cannot toggle back to
+        // online mode.
+        rv = mPrefBranch->SetBoolPref("network.online", false);
+        if (NS_FAILED(rv)) 
+            return rv;
+
+        mPrefBranch->LockPref("network.online");
+        return NS_OK;
+    }
+    
+    /* faiover_to_cached is set to true so 
+       Open the file and read the content.
+       execute the javascript file
+    */
+    
+    nsCOMPtr<nsIFile> failoverFile; 
+    rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+                                getter_AddRefs(failoverFile));
+    if (NS_FAILED(rv)) 
+        return rv;
+    
+    failoverFile->AppendNative(NS_LITERAL_CSTRING("failover.jsc"));
+    rv = evaluateLocalFile(failoverFile);
+    if (NS_FAILED(rv)) 
+        NS_WARNING("Couldn't open failover.jsc, going back to default prefs");
+    return NS_OK;
+}
+
+nsresult nsAutoConfig::evaluateLocalFile(nsIFile *file)
+{
+    nsresult rv;
+    nsCOMPtr<nsIInputStream> inStr;
+    
+    rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), file);
+    if (NS_FAILED(rv)) 
+        return rv;
+        
+    int64_t fileSize;
+    file->GetFileSize(&fileSize);
+    uint32_t fs = fileSize; // Converting 64 bit structure to unsigned int
+    char *buf = (char *)PR_Malloc(fs * sizeof(char));
+    if (!buf) 
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    uint32_t amt = 0;
+    rv = inStr->Read(buf, fs, &amt);
+    if (NS_SUCCEEDED(rv)) {
+      EvaluateAdminConfigScript(buf, fs, nullptr, false, 
+                                true, false);
+    }
+    inStr->Close();
+    PR_Free(buf);
+    return rv;
+}
+
+nsresult nsAutoConfig::writeFailoverFile()
+{
+    nsresult rv;
+    nsCOMPtr<nsIFile> failoverFile; 
+    nsCOMPtr<nsIOutputStream> outStr;
+    uint32_t amt;
+    
+    rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+                                getter_AddRefs(failoverFile));
+    if (NS_FAILED(rv)) 
+        return rv;
+    
+    failoverFile->AppendNative(NS_LITERAL_CSTRING("failover.jsc"));
+    
+    rv = NS_NewLocalFileOutputStream(getter_AddRefs(outStr), failoverFile);
+    if (NS_FAILED(rv)) 
+        return rv;
+    rv = outStr->Write(mBuf.get(),mBuf.Length(),&amt);
+    outStr->Close();
+    return rv;
+}
+
+nsresult nsAutoConfig::getEmailAddr(nsACString & emailAddr)
+{
+    
+    nsresult rv;
+    nsXPIDLCString prefValue;
+    
+    /* Getting an email address through set of three preferences:
+       First getting a default account with 
+       "mail.accountmanager.defaultaccount"
+       second getting an associated id with the default account
+       Third getting an email address with id
+    */
+    
+    rv = mPrefBranch->GetCharPref("mail.accountmanager.defaultaccount", 
+                                  getter_Copies(prefValue));
+    if (NS_SUCCEEDED(rv) && !prefValue.IsEmpty()) {
+        emailAddr = NS_LITERAL_CSTRING("mail.account.") +
+            prefValue + NS_LITERAL_CSTRING(".identities");
+        rv = mPrefBranch->GetCharPref(PromiseFlatCString(emailAddr).get(),
+                                      getter_Copies(prefValue));
+        if (NS_FAILED(rv) || prefValue.IsEmpty())
+            return PromptForEMailAddress(emailAddr);
+        int32_t commandIndex = prefValue.FindChar(',');
+        if (commandIndex != kNotFound)
+          prefValue.Truncate(commandIndex);
+        emailAddr = NS_LITERAL_CSTRING("mail.identity.") +
+            prefValue + NS_LITERAL_CSTRING(".useremail");
+        rv = mPrefBranch->GetCharPref(PromiseFlatCString(emailAddr).get(),
+                                      getter_Copies(prefValue));
+        if (NS_FAILED(rv)  || prefValue.IsEmpty())
+            return PromptForEMailAddress(emailAddr);
+        emailAddr = prefValue;
+    }
+    else {
+        // look for 4.x pref in case we just migrated.
+        rv = mPrefBranch->GetCharPref("mail.identity.useremail", 
+                                  getter_Copies(prefValue));
+        if (NS_SUCCEEDED(rv) && !prefValue.IsEmpty())
+            emailAddr = prefValue;
+        else
+            PromptForEMailAddress(emailAddr);
+    }
+    
+    return NS_OK;
+}
+        
+nsresult nsAutoConfig::PromptForEMailAddress(nsACString &emailAddress)
+{
+    nsresult rv;
+    nsCOMPtr<nsIPromptService> promptService = do_GetService("@mozilla.org/embedcomp/prompt-service;1", &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+    nsCOMPtr<nsIStringBundleService> bundleService = do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsCOMPtr<nsIStringBundle> bundle;
+    rv = bundleService->CreateBundle("chrome://autoconfig/locale/autoconfig.properties",
+                                getter_AddRefs(bundle));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsXPIDLString title;
+    rv = bundle->GetStringFromName(u"emailPromptTitle", getter_Copies(title));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsXPIDLString err;
+    rv = bundle->GetStringFromName(u"emailPromptMsg", getter_Copies(err));
+    NS_ENSURE_SUCCESS(rv, rv);
+    bool check = false;
+    nsXPIDLString emailResult;
+    bool success;
+    rv = promptService->Prompt(nullptr, title.get(), err.get(), getter_Copies(emailResult), nullptr, &check, &success);
+    if (!success)
+      return NS_ERROR_FAILURE;
+    NS_ENSURE_SUCCESS(rv, rv);
+    LossyCopyUTF16toASCII(emailResult, emailAddress);
+    return NS_OK;
+}
diff --git a/extensions/pref/autoconfig/src/nsAutoConfig.h b/extensions/pref/autoconfig/src/nsAutoConfig.h
new file mode 100644
index 000000000..d805ad184
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsAutoConfig.h
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsAutoConfig_h
+#define nsAutoConfig_h
+
+#include "nsIAutoConfig.h"
+#include "nsITimer.h"
+#include "nsIFile.h"
+#include "nsIObserver.h"
+#include "nsIStreamListener.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsWeakReference.h"
+#include "nsString.h"
+
+class nsAutoConfig : public nsIAutoConfig,
+                     public nsITimerCallback,
+                     public nsIStreamListener,
+                     public nsIObserver,
+                     public nsSupportsWeakReference
+
+{
+    public:
+
+        NS_DECL_THREADSAFE_ISUPPORTS
+        NS_DECL_NSIAUTOCONFIG
+        NS_DECL_NSIREQUESTOBSERVER
+        NS_DECL_NSISTREAMLISTENER
+        NS_DECL_NSIOBSERVER
+        NS_DECL_NSITIMERCALLBACK
+
+        nsAutoConfig();
+        nsresult Init();
+  
+    protected:
+  
+        virtual ~nsAutoConfig();
+        nsresult downloadAutoConfig();
+        nsresult readOfflineFile();
+        nsresult evaluateLocalFile(nsIFile *file);
+        nsresult writeFailoverFile();
+        nsresult getEmailAddr(nsACString & emailAddr);
+        nsresult PromptForEMailAddress(nsACString &emailAddress);
+        nsCString mBuf;
+        nsCOMPtr<nsIPrefBranch> mPrefBranch;
+        bool mLoaded;
+        nsCOMPtr<nsITimer> mTimer;
+        nsCString mConfigURL;
+};
+
+#endif
diff --git a/extensions/pref/autoconfig/src/nsConfigFactory.cpp b/extensions/pref/autoconfig/src/nsConfigFactory.cpp
new file mode 100644
index 000000000..89f886b2a
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsConfigFactory.cpp
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ModuleUtils.h"
+#include "nsAutoConfig.h"
+#include "nsReadConfig.h"
+#include "nsIAppStartupNotifier.h"
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsAutoConfig, Init)
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsReadConfig, Init)
+
+NS_DEFINE_NAMED_CID(NS_AUTOCONFIG_CID);
+NS_DEFINE_NAMED_CID(NS_READCONFIG_CID);
+
+static const mozilla::Module::CIDEntry kAutoConfigCIDs[] = {
+  { &kNS_AUTOCONFIG_CID, false, nullptr, nsAutoConfigConstructor },
+  { &kNS_READCONFIG_CID, false, nullptr, nsReadConfigConstructor },
+  { nullptr }
+};
+
+static const mozilla::Module::ContractIDEntry kAutoConfigContracts[] = {
+  { NS_AUTOCONFIG_CONTRACTID, &kNS_AUTOCONFIG_CID },
+  { NS_READCONFIG_CONTRACTID, &kNS_READCONFIG_CID },
+  { nullptr }
+};
+
+static const mozilla::Module::CategoryEntry kAutoConfigCategories[] = {
+  { "pref-config-startup", "ReadConfig Module", NS_READCONFIG_CONTRACTID },
+  { nullptr }
+};
+
+static const mozilla::Module kAutoConfigModule = {
+  mozilla::Module::kVersion,
+  kAutoConfigCIDs,
+  kAutoConfigContracts,
+  kAutoConfigCategories
+};
+
+NSMODULE_DEFN(nsAutoConfigModule) = &kAutoConfigModule;
diff --git a/extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp b/extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp
new file mode 100644
index 000000000..87f2bef20
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp
@@ -0,0 +1,138 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi.h"
+#include "nsIXPConnect.h"
+#include "nsCOMPtr.h"
+#include "nsIServiceManager.h"
+#include "nsIComponentManager.h"
+#include "nsString.h"
+#include "nsIPrefService.h"
+#include "nspr.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "nsContentUtils.h"
+#include "nsIScriptSecurityManager.h"
+#include "nsJSPrincipals.h"
+#include "nsIScriptError.h"
+#include "jswrapper.h"
+
+extern mozilla::LazyLogModule MCD;
+using mozilla::AutoSafeJSContext;
+using mozilla::dom::AutoJSAPI;
+
+//*****************************************************************************
+
+static JS::PersistentRooted<JSObject *> autoconfigSb;
+
+nsresult CentralizedAdminPrefManagerInit()
+{
+    nsresult rv;
+
+    // If the sandbox is already created, no need to create it again.
+    if (autoconfigSb.initialized())
+        return NS_OK;
+
+    // Grab XPConnect.
+    nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
+    if (NS_FAILED(rv)) {
+        return rv;
+    }
+
+    // Grab the system principal.
+    nsCOMPtr<nsIPrincipal> principal;
+    nsContentUtils::GetSecurityManager()->GetSystemPrincipal(getter_AddRefs(principal));
+
+
+    // Create a sandbox.
+    AutoSafeJSContext cx;
+    JS::Rooted<JSObject*> sandbox(cx);
+    rv = xpc->CreateSandbox(cx, principal, sandbox.address());
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // Unwrap, store and root the sandbox.
+    NS_ENSURE_STATE(sandbox);
+    autoconfigSb.init(cx, js::UncheckedUnwrap(sandbox));
+
+    return NS_OK;
+}
+
+nsresult CentralizedAdminPrefManagerFinish()
+{
+    if (autoconfigSb.initialized()) {
+        AutoSafeJSContext cx;
+        autoconfigSb.reset();
+        JS_MaybeGC(cx);
+    }
+    return NS_OK;
+}
+
+nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length,
+                                   const char *filename, bool bGlobalContext,
+                                   bool bCallbacks, bool skipFirstLine)
+{
+    nsresult rv = NS_OK;
+
+    if (skipFirstLine) {
+        /* In order to protect the privacy of the JavaScript preferences file
+         * from loading by the browser, we make the first line unparseable
+         * by JavaScript. We must skip that line here before executing
+         * the JavaScript code.
+         */
+        unsigned int i = 0;
+        while (i < length) {
+            char c = js_buffer[i++];
+            if (c == '\r') {
+                if (js_buffer[i] == '\n')
+                    i++;
+                break;
+            }
+            if (c == '\n')
+                break;
+        }
+
+        length -= i;
+        js_buffer += i;
+    }
+
+    // Grab XPConnect.
+    nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
+    if (NS_FAILED(rv)) {
+        return rv;
+    }
+
+    AutoJSAPI jsapi;
+    if (!jsapi.Init(autoconfigSb)) {
+        return NS_ERROR_UNEXPECTED;
+    }
+    JSContext* cx = jsapi.cx();
+
+    nsAutoCString script(js_buffer, length);
+    JS::RootedValue v(cx);
+
+    nsString convertedScript;
+    bool isUTF8 = IsUTF8(script);
+    if (isUTF8) {
+        convertedScript = NS_ConvertUTF8toUTF16(script);
+    } else {
+        nsContentUtils::ReportToConsoleNonLocalized(
+            NS_LITERAL_STRING("Your AutoConfig file is ASCII. Please convert it to UTF-8."),
+            nsIScriptError::warningFlag,
+            NS_LITERAL_CSTRING("autoconfig"),
+            nullptr);
+        /* If the length is 0, the conversion failed. Fallback to ASCII */
+        convertedScript = NS_ConvertASCIItoUTF16(script);
+    }
+    JS::Rooted<JS::Value> value(cx, JS::BooleanValue(isUTF8));
+    if (!JS_DefineProperty(cx, autoconfigSb, "gIsUTF8", value, JSPROP_ENUMERATE)) {
+        return NS_ERROR_UNEXPECTED;
+    }
+    rv = xpc->EvalInSandboxObject(convertedScript, filename, cx,
+                                  autoconfigSb, JSVERSION_LATEST, &v);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    return NS_OK;
+}
+
diff --git a/extensions/pref/autoconfig/src/nsReadConfig.cpp b/extensions/pref/autoconfig/src/nsReadConfig.cpp
new file mode 100644
index 000000000..6f17deaf1
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsReadConfig.cpp
@@ -0,0 +1,300 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsReadConfig.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsIAppStartup.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsIAutoConfig.h"
+#include "nsIComponentManager.h"
+#include "nsIFile.h"
+#include "nsIObserverService.h"
+#include "nsIPrefBranch.h"
+#include "nsIPrefService.h"
+#include "nsIPromptService.h"
+#include "nsIServiceManager.h"
+#include "nsIStringBundle.h"
+#include "nsToolkitCompsCID.h"
+#include "nsXPIDLString.h"
+#include "nsNetUtil.h"
+#include "prmem.h"
+#include "nsString.h"
+#include "nsCRT.h"
+#include "nspr.h"
+#include "nsXULAppAPI.h"
+#include "nsContentUtils.h"
+
+extern mozilla::LazyLogModule MCD;
+
+extern nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length,
+                                          const char *filename, 
+                                          bool bGlobalContext, 
+                                          bool bCallbacks, 
+                                          bool skipFirstLine);
+extern nsresult CentralizedAdminPrefManagerInit();
+extern nsresult CentralizedAdminPrefManagerFinish();
+
+
+static void DisplayError(void)
+{
+    nsresult rv;
+
+    nsCOMPtr<nsIPromptService> promptService = do_GetService("@mozilla.org/embedcomp/prompt-service;1");
+    if (!promptService)
+        return;
+
+    nsCOMPtr<nsIStringBundleService> bundleService = do_GetService(NS_STRINGBUNDLE_CONTRACTID);
+    if (!bundleService)
+        return;
+
+    nsCOMPtr<nsIStringBundle> bundle;
+    bundleService->CreateBundle("chrome://autoconfig/locale/autoconfig.properties",
+                                getter_AddRefs(bundle));
+    if (!bundle)
+        return;
+
+    nsXPIDLString title;
+    rv = bundle->GetStringFromName(u"readConfigTitle", getter_Copies(title));
+    if (NS_FAILED(rv))
+        return;
+
+    nsXPIDLString err;
+    rv = bundle->GetStringFromName(u"readConfigMsg", getter_Copies(err));
+    if (NS_FAILED(rv))
+        return;
+
+    promptService->Alert(nullptr, title.get(), err.get());
+}
+
+// nsISupports Implementation
+
+NS_IMPL_ISUPPORTS(nsReadConfig, nsIReadConfig, nsIObserver)
+
+nsReadConfig::nsReadConfig() :
+    mRead(false)
+{
+}
+
+nsresult nsReadConfig::Init()
+{
+    nsresult rv;
+    
+    nsCOMPtr<nsIObserverService> observerService = 
+        do_GetService("@mozilla.org/observer-service;1", &rv);
+
+    if (observerService) {
+        rv = observerService->AddObserver(this, NS_PREFSERVICE_READ_TOPIC_ID, false);
+    }
+    return(rv);
+}
+
+nsReadConfig::~nsReadConfig()
+{
+    CentralizedAdminPrefManagerFinish();
+}
+
+NS_IMETHODIMP nsReadConfig::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *someData)
+{
+    nsresult rv = NS_OK;
+
+    if (!nsCRT::strcmp(aTopic, NS_PREFSERVICE_READ_TOPIC_ID)) {
+        rv = readConfigFile();
+        if (NS_FAILED(rv)) {
+            DisplayError();
+
+            nsCOMPtr<nsIAppStartup> appStartup =
+                do_GetService(NS_APPSTARTUP_CONTRACTID);
+            if (appStartup)
+                appStartup->Quit(nsIAppStartup::eAttemptQuit);
+        }
+    }
+    return rv;
+}
+
+
+nsresult nsReadConfig::readConfigFile()
+{
+    nsresult rv = NS_OK;
+    nsXPIDLCString lockFileName;
+    nsXPIDLCString lockVendor;
+    uint32_t fileNameLen = 0;
+    
+    nsCOMPtr<nsIPrefBranch> defaultPrefBranch;
+    nsCOMPtr<nsIPrefService> prefService = 
+        do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
+    if (NS_FAILED(rv))
+        return rv;
+
+    rv = prefService->GetDefaultBranch(nullptr, getter_AddRefs(defaultPrefBranch));
+    if (NS_FAILED(rv))
+        return rv;
+        
+    // This preference is set in the all.js or all-ns.js (depending whether 
+    // running mozilla or netscp6)
+
+    rv = defaultPrefBranch->GetCharPref("general.config.filename", 
+                                  getter_Copies(lockFileName));
+
+
+    MOZ_LOG(MCD, LogLevel::Debug, ("general.config.filename = %s\n", lockFileName.get()));
+    if (NS_FAILED(rv))
+        return rv;
+
+    // This needs to be read only once.
+    //
+    if (!mRead) {
+        // Initiate the new JS Context for Preference management
+        
+        rv = CentralizedAdminPrefManagerInit();
+        if (NS_FAILED(rv))
+            return rv;
+        
+        // Open and evaluate function calls to set/lock/unlock prefs
+        rv = openAndEvaluateJSFile("prefcalls.js", 0, false, false);
+        if (NS_FAILED(rv)) 
+            return rv;
+
+        mRead = true;
+    }
+    // If the lockFileName is nullptr return ok, because no lockFile will be used
+  
+  
+    // Once the config file is read, we should check that the vendor name 
+    // is consistent By checking for the vendor name after reading the config 
+    // file we allow for the preference to be set (and locked) by the creator 
+    // of the cfg file meaning the file can not be renamed (successfully).
+
+    nsCOMPtr<nsIPrefBranch> prefBranch;
+    rv = prefService->GetBranch(nullptr, getter_AddRefs(prefBranch));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    int32_t obscureValue = 0;
+    (void) defaultPrefBranch->GetIntPref("general.config.obscure_value", &obscureValue);
+    MOZ_LOG(MCD, LogLevel::Debug, ("evaluating .cfg file %s with obscureValue %d\n", lockFileName.get(), obscureValue));
+    rv = openAndEvaluateJSFile(lockFileName.get(), obscureValue, true, true);
+    if (NS_FAILED(rv))
+    {
+      MOZ_LOG(MCD, LogLevel::Debug, ("error evaluating .cfg file %s %x\n", lockFileName.get(), rv));
+      return rv;
+    }
+    
+    rv = prefBranch->GetCharPref("general.config.filename", 
+                                  getter_Copies(lockFileName));
+    if (NS_FAILED(rv))
+        // There is NO REASON we should ever get here. This is POST reading 
+        // of the config file.
+        return NS_ERROR_FAILURE;
+
+  
+    rv = prefBranch->GetCharPref("general.config.vendor", 
+                                  getter_Copies(lockVendor));
+    // If vendor is not nullptr, do this check
+    if (NS_SUCCEEDED(rv)) {
+
+        fileNameLen = strlen(lockFileName);
+    
+        // lockVendor and lockFileName should be the same with the addtion of 
+        // .cfg to the filename by checking this post reading of the cfg file 
+        // this value can be set within the cfg file adding a level of security.
+    
+        if (PL_strncmp(lockFileName, lockVendor, fileNameLen - 4) != 0)
+            return NS_ERROR_FAILURE;
+    }
+  
+    // get the value of the autoconfig url
+    nsXPIDLCString urlName;
+    rv = prefBranch->GetCharPref("autoadmin.global_config_url",
+                                  getter_Copies(urlName));
+    if (NS_SUCCEEDED(rv) && !urlName.IsEmpty()) {
+
+        // Instantiating nsAutoConfig object if the pref is present
+        mAutoConfig = do_CreateInstance(NS_AUTOCONFIG_CONTRACTID, &rv);
+        if (NS_FAILED(rv))
+            return NS_ERROR_OUT_OF_MEMORY;
+
+        rv = mAutoConfig->SetConfigURL(urlName);
+        if (NS_FAILED(rv))
+            return NS_ERROR_FAILURE;
+
+    }
+  
+    return NS_OK;
+} // ReadConfigFile
+
+
+nsresult nsReadConfig::openAndEvaluateJSFile(const char *aFileName, int32_t obscureValue,
+                                             bool isEncoded,
+                                             bool isBinDir)
+{
+    nsresult rv;
+
+    nsCOMPtr<nsIInputStream> inStr;
+    if (isBinDir) {
+        nsCOMPtr<nsIFile> jsFile;
+        rv = NS_GetSpecialDirectory(NS_GRE_DIR,
+                                    getter_AddRefs(jsFile));
+        if (NS_FAILED(rv)) 
+            return rv;
+
+        rv = jsFile->AppendNative(nsDependentCString(aFileName));
+        if (NS_FAILED(rv)) 
+            return rv;
+
+        rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), jsFile);
+        if (NS_FAILED(rv)) 
+            return rv;
+
+    } else {
+        nsAutoCString location("resource://gre/defaults/autoconfig/");
+        location += aFileName;
+
+        nsCOMPtr<nsIURI> uri;
+        rv = NS_NewURI(getter_AddRefs(uri), location);
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        nsCOMPtr<nsIChannel> channel;
+        rv = NS_NewChannel(getter_AddRefs(channel),
+                           uri,
+                           nsContentUtils::GetSystemPrincipal(),
+                           nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
+                           nsIContentPolicy::TYPE_OTHER);
+        NS_ENSURE_SUCCESS(rv, rv);
+
+        rv = channel->Open2(getter_AddRefs(inStr));
+        NS_ENSURE_SUCCESS(rv, rv);
+    }
+
+    uint64_t fs64;
+    uint32_t amt = 0;
+    rv = inStr->Available(&fs64);
+    if (NS_FAILED(rv))
+        return rv;
+    // PR_Malloc dones't support over 4GB
+    if (fs64 > UINT32_MAX)
+      return NS_ERROR_FILE_TOO_BIG;
+    uint32_t fs = (uint32_t)fs64;
+
+    char *buf = (char *)PR_Malloc(fs * sizeof(char));
+    if (!buf) 
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    rv = inStr->Read(buf, (uint32_t)fs, &amt);
+    NS_ASSERTION((amt == fs), "failed to read the entire configuration file!!");
+    if (NS_SUCCEEDED(rv)) {
+        if (obscureValue > 0) {
+
+            // Unobscure file by subtracting some value from every char. 
+            for (uint32_t i = 0; i < amt; i++)
+                buf[i] -= obscureValue;
+        }
+        rv = EvaluateAdminConfigScript(buf, amt, aFileName,
+                                       false, true,
+                                       isEncoded ? true:false);
+    }
+    inStr->Close();
+    PR_Free(buf);
+    
+    return rv;
+}
diff --git a/extensions/pref/autoconfig/src/nsReadConfig.h b/extensions/pref/autoconfig/src/nsReadConfig.h
new file mode 100644
index 000000000..66aa9e5f0
--- /dev/null
+++ b/extensions/pref/autoconfig/src/nsReadConfig.h
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsReadConfig_h
+#define nsReadConfig_h
+
+#include "nsCOMPtr.h"
+#include "nsIReadConfig.h"
+#include "nsIAutoConfig.h"
+#include "nsIObserver.h"
+
+
+class nsReadConfig : public nsIReadConfig,
+                     public nsIObserver
+{
+
+    public:
+
+        NS_DECL_THREADSAFE_ISUPPORTS
+        NS_DECL_NSIREADCONFIG
+        NS_DECL_NSIOBSERVER
+
+        nsReadConfig();
+
+        nsresult Init();
+
+    protected:
+
+        virtual ~nsReadConfig();
+
+        nsresult readConfigFile();
+        nsresult openAndEvaluateJSFile(const char *aFileName, int32_t obscureValue, 
+                                        bool isEncoded, bool isBinDir);
+        bool mRead;
+private:
+        nsCOMPtr<nsIAutoConfig> mAutoConfig;
+};
+
+#endif
diff --git a/extensions/pref/autoconfig/src/prefcalls.js b/extensions/pref/autoconfig/src/prefcalls.js
new file mode 100644
index 000000000..d0bbd538e
--- /dev/null
+++ b/extensions/pref/autoconfig/src/prefcalls.js
@@ -0,0 +1,230 @@
+/* -*- tab-width: 4; indent-tabs-mode: nil; js-indent-level: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const nsILDAPURL = Components.interfaces.nsILDAPURL;
+const LDAPURLContractID = "@mozilla.org/network/ldap-url;1";
+const nsILDAPSyncQuery = Components.interfaces.nsILDAPSyncQuery;
+const LDAPSyncQueryContractID = "@mozilla.org/ldapsyncquery;1";
+const nsIPrefService = Components.interfaces.nsIPrefService;
+const PrefServiceContractID = "@mozilla.org/preferences-service;1";
+
+var gVersion;
+var gIsUTF8;
+
+function getPrefBranch() {
+    
+    var prefService = Components.classes[PrefServiceContractID]
+                                .getService(nsIPrefService);    
+    return prefService.getBranch(null);
+}
+
+function pref(prefName, value) {
+
+    try { 
+        var prefBranch = getPrefBranch();
+
+        if (typeof value == "string") {
+            if (gIsUTF8) {
+                const nsISupportsString = Components.interfaces.nsISupportsString;
+                let string = Components.classes["@mozilla.org/supports-string;1"]
+                                       .createInstance(nsISupportsString);
+                string.data = value;
+                prefBranch.setComplexValue(prefName, nsISupportsString, string);
+                return;
+            }
+            prefBranch.setCharPref(prefName, value);
+        }
+        else if (typeof value == "number") {
+            prefBranch.setIntPref(prefName, value);
+        }
+        else if (typeof value == "boolean") {
+            prefBranch.setBoolPref(prefName, value);
+        }
+    }
+    catch(e) {
+        displayError("pref", e);
+    }
+}
+
+function defaultPref(prefName, value) {
+    
+    try {
+        var prefService = Components.classes[PrefServiceContractID]
+                                    .getService(nsIPrefService);        
+        var prefBranch = prefService.getDefaultBranch(null);
+        if (typeof value == "string") {
+            if (gIsUTF8) {
+                const nsISupportsString = Components.interfaces.nsISupportsString;
+                let string = Components.classes["@mozilla.org/supports-string;1"]
+                                       .createInstance(nsISupportsString);
+                string.data = value;
+                prefBranch.setComplexValue(prefName, nsISupportsString, string);
+                return;
+            }
+            prefBranch.setCharPref(prefName, value);
+        }
+        else if (typeof value == "number") {
+            prefBranch.setIntPref(prefName, value);
+        }
+        else if (typeof value == "boolean") {
+            prefBranch.setBoolPref(prefName, value);
+        }
+    }
+    catch(e) {
+        displayError("defaultPref", e);
+    }
+}
+
+function lockPref(prefName, value) {
+    
+    try {
+        var prefBranch = getPrefBranch();
+        
+        if (prefBranch.prefIsLocked(prefName))
+            prefBranch.unlockPref(prefName);
+        
+        defaultPref(prefName, value);
+        
+        prefBranch.lockPref(prefName);
+    }
+    catch(e) {
+        displayError("lockPref", e);
+    }
+}
+
+function unlockPref(prefName) {
+
+    try {
+
+        var prefBranch = getPrefBranch();
+        prefBranch.unlockPref(prefName);
+    }
+    catch(e) {
+        displayError("unlockPref", e);
+    }
+}
+
+function getPref(prefName) {
+    
+    try {
+        var prefBranch = getPrefBranch();
+        
+        switch (prefBranch.getPrefType(prefName)) {
+            
+        case prefBranch.PREF_STRING:
+            if (gIsUTF8) {
+                const nsISupportsString = Components.interfaces.nsISupportsString;
+                let string = Components.classes["@mozilla.org/supports-string;1"]
+                                       .createInstance(nsISupportsString);
+                return prefBranch.getComplexValue(prefName, nsISupportsString).data;
+            }
+            return prefBranch.getCharPref(prefName);
+            
+        case prefBranch.PREF_INT:
+            return prefBranch.getIntPref(prefName);
+            
+        case prefBranch.PREF_BOOL:
+            return prefBranch.getBoolPref(prefName);
+        default:
+            return null;
+        }
+    }
+    catch(e) {
+        displayError("getPref", e);
+    }
+}
+
+function clearPref(prefName) {
+
+    try {
+        var prefBranch = getPrefBranch();
+            prefBranch.clearUserPref(prefName);
+    }
+    catch(e) {
+    }
+        
+}
+
+function setLDAPVersion(version) {
+    gVersion = version;
+}
+
+
+function getLDAPAttributes(host, base, filter, attribs, isSecure) {
+    
+    try {
+        var urlSpec = "ldap" + (isSecure ? "s" : "") + "://" + host + (isSecure ? ":636" : "") + "/" + base + "?" + attribs + "?sub?" +
+                      filter;
+
+        var url = Components.classes["@mozilla.org/network/io-service;1"]
+                            .getService(Components.interfaces.nsIIOService)
+                            .newURI(urlSpec, null, null)
+                            .QueryInterface(Components.interfaces.nsILDAPURL);
+
+        var ldapquery = Components.classes[LDAPSyncQueryContractID]
+                                  .createInstance(nsILDAPSyncQuery);
+        // default to LDAP v3
+        if (!gVersion)
+          gVersion = Components.interfaces.nsILDAPConnection.VERSION3
+ 	// user supplied method
+        processLDAPValues(ldapquery.getQueryResults(url, gVersion));
+    }
+    catch(e) {
+        displayError("getLDAPAttibutes", e);
+    }
+}
+
+function getLDAPValue(str, key) {
+
+    try {
+        if (str == null || key == null)
+            return null;
+        
+        var search_key = "\n" + key + "=";
+        
+        var start_pos = str.indexOf(search_key);
+        if (start_pos == -1)
+            return null;
+        
+        start_pos += search_key.length;
+        
+        var end_pos = str.indexOf("\n", start_pos);
+        if (end_pos == -1)
+            end_pos = str.length;
+        
+        return str.substring(start_pos, end_pos);
+    }
+    catch(e) {
+        displayError("getLDAPValue", e);
+    }
+}
+
+function displayError(funcname, message) {
+
+    try {
+        var promptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+                                      .getService(Components.interfaces.nsIPromptService);
+        var bundle = Components.classes["@mozilla.org/intl/stringbundle;1"]
+                               .getService(Components.interfaces.nsIStringBundleService)
+                               .createBundle("chrome://autoconfig/locale/autoconfig.properties");
+
+         var title = bundle.GetStringFromName("autoConfigTitle");
+         var msg = bundle.formatStringFromName("autoConfigMsg", [funcname], 1);
+         promptService.alert(null, title, msg + " " + message);
+    }
+    catch(e) { }
+}
+
+function getenv(name) {
+    try {
+        var environment = Components.classes["@mozilla.org/process/environment;1"].
+            getService(Components.interfaces.nsIEnvironment);
+        return environment.get(name);
+    }
+    catch(e) {
+        displayError("getEnvironment", e);
+    }
+}
+