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-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/gnuzilla.scm18
-rw-r--r--gnu/packages/patches/icecat-bug-1413868-pt1.patch663
3 files changed, 681 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 5818603802..58aebf12a2 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -798,6 +798,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/hurd-fix-eth-multiplexer-dependency.patch        \
   %D%/packages/patches/hydra-disable-darcs-test.patch		\
   %D%/packages/patches/icecat-avoid-bundled-libraries.patch	\
+  %D%/packages/patches/icecat-bug-1413868-pt1.patch		\
   %D%/packages/patches/icecat-CVE-2018-5157-and-CVE-2018-5158.patch	\
   %D%/packages/patches/icecat-use-system-graphite2.patch	\
   %D%/packages/patches/icecat-use-system-harfbuzz.patch		\
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index f98d6cc99a..9e6061eb64 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -499,7 +499,23 @@ security standards.")
         (mozilla-patch "icecat-CVE-2018-12360.patch"     "face7a3dd5d7" "0jclw30mf693w8lrmvn0iankggj21nh4j3zh51q5363rj5xncdzx")
         (mozilla-patch "icecat-CVE-2018-5188-pt10.patch" "7afb58c046c8" "1r0569r76712x7x1sw6xr0x06ilv6iw3fncb0f8r8b9mp6wrpx34")
         (mozilla-patch "icecat-CVE-2018-12362-pt1.patch" "f1a745f8c42d" "11q73pb7a8f09xjzil4rhg5nr49zrnz1vb0prni0kqvrnppf5s40")
-        (mozilla-patch "icecat-CVE-2018-12362-pt2.patch" "1f9a430881cc" "0f79rv7njliqxx33z07n60b50jg0a596d1km7ayz2hivbl2d0168")))
+        (mozilla-patch "icecat-CVE-2018-12362-pt2.patch" "1f9a430881cc" "0f79rv7njliqxx33z07n60b50jg0a596d1km7ayz2hivbl2d0168")
+        (mozilla-patch "icecat-CVE-2018-5188-pt11.patch" "28f4fc0a5141" "1a8f9z6c80in8ccj82ysdrcr2lqypp29l4acs50kwncm0c0b01zl")
+        (mozilla-patch "icecat-CVE-2018-12363.patch"     "ad5a53a1d2b1" "0rhl4r39ydb3lkfp5pkwvhhzqgfh33s9r7b7jccgkrx6f13xyq78")
+        (mozilla-patch "icecat-CVE-2018-5188-pt12.patch" "0ddfc03c0454" "1b0xw2kj9765lvpl8iwr3wwcz40bdfp3dp4y9f546a61qsi9q9d6")
+        (mozilla-patch "icecat-CVE-2018-5156-pt2.patch"  "dbf36189a364" "1awbyhy0r79i03sns2p0m78f9hb6c7kp4hwia2khx4qszlsr4j95")
+        (mozilla-patch "icecat-CVE-2018-5188-pt13.patch" "32509dfde003" "0cc3c92dgf5qynk093prq610c9x815l2fa24ddrw9czdzbwblsdq")
+        (mozilla-patch "icecat-bug-1462912.patch"        "f18535a212da" "0zkqz9il89f1s1yrp5c6hj6kysy2x02iy50vgwdj30lr56gkpzmk")
+        (mozilla-patch "icecat-CVE-2018-5188-pt14.patch" "e8e9e1ef79f2" "0dc8p6fsppq3bhbpmp41f8mjxbr31pvgpga0a73dqdaicq5ydgj4")
+        (search-patch  "icecat-bug-1413868-pt1.patch")
+        (mozilla-patch "icecat-CVE-2018-5188-pt15.patch" "9d4d31b2630d" "1lcbmsyi09kp80h1jgxj5l45zl24xn22h1lq7drbyjxsn1kggq4g")
+        (mozilla-patch "icecat-CVE-2018-12366-pt1.patch" "edf2c7dff493" "06xmyk7nm54cm9m6qc59wz8cxxfa5r25mf2xzdzy74iq5hwa1ac8")
+        (mozilla-patch "icecat-CVE-2018-5188-pt16.patch" "05549a4d1b80" "10q68cllshmmhlrbirm9h4gyc3ffrcpsxihfpcbxh90nv2h16jci")
+        (mozilla-patch "icecat-CVE-2018-12364.patch"     "67b2d8924841" "197riigbb6l30959pygr0zlv7vaims78dg1mh0pg33pa7cbna0ds")
+        (mozilla-patch "icecat-CVE-2018-12366-pt2.patch" "528d4d997bb3" "0f375i96a404dkn0fanmd9pgfj3wyrhjfc5dwslw2s44gwfjhljb")
+        (mozilla-patch "icecat-bug-1369771.patch"        "fab16ad7f256" "0kd8qm04sjgfgfg8yw3ivcxazb1d7v430g86chw4n64qybsh9ka3")
+        (mozilla-patch "icecat-CVE-2018-5188-pt17.patch" "068e249d02b4" "1iy9by1mg5qhp8502h31m8zm99aq2hx0c5n3hadd5pk11lfnq6ll")
+        (mozilla-patch "icecat-bug-1413868-pt2.patch"    "755067c14b06" "089dwqwzcdg1l6aimi0i65q4dgb2iny5h8yjx63h9zgv77n0700a")))
       (modules '((guix build utils)))
       (snippet
        '(begin
diff --git a/gnu/packages/patches/icecat-bug-1413868-pt1.patch b/gnu/packages/patches/icecat-bug-1413868-pt1.patch
new file mode 100644
index 0000000000..18382dc33a
--- /dev/null
+++ b/gnu/packages/patches/icecat-bug-1413868-pt1.patch
@@ -0,0 +1,663 @@
+Based on <https://hg.mozilla.org/releases/mozilla-esr52/rev/431fa5dd4016>
+Adapted to apply cleanly to GNU IceCat.
+
+# HG changeset patch
+# User Honza Bambas <honzab.moz@firemni.cz>
+# Date 1528830658 14400
+# Node ID 431fa5dd4016bdab7e4bb0d3c4df85468fe337b0
+# Parent  e8e9e1ef79f2a18c61ec1b87cfb214c8d4960f8e
+Bug 1413868. r=valentin, a=RyanVM
+
+diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
+--- a/toolkit/xre/nsAppRunner.cpp
++++ b/toolkit/xre/nsAppRunner.cpp
+@@ -4,16 +4,17 @@
+  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ 
+ #include "mozilla/dom/ContentParent.h"
+ #include "mozilla/dom/ContentChild.h"
+ #include "mozilla/ipc/GeckoChildProcessHost.h"
+ 
+ #include "mozilla/ArrayUtils.h"
+ #include "mozilla/Attributes.h"
++#include "mozilla/FilePreferences.h"
+ #include "mozilla/ChaosMode.h"
+ #include "mozilla/IOInterposer.h"
+ #include "mozilla/Likely.h"
+ #include "mozilla/MemoryChecking.h"
+ #include "mozilla/Poison.h"
+ #include "mozilla/Preferences.h"
+ #include "mozilla/ScopeExit.h"
+ #include "mozilla/Services.h"
+@@ -4304,16 +4305,20 @@ XREMain::XRE_mainRun()
+       // Need to write out the fact that the profile has been removed and potentially
+       // that the selected/default profile changed.
+       mProfileSvc->Flush();
+     }
+   }
+ 
+   mDirProvider.DoStartup();
+ 
++  // As FilePreferences need the profile directory, we must initialize right here.
++  mozilla::FilePreferences::InitDirectoriesWhitelist();
++  mozilla::FilePreferences::InitPrefs();
++
+   OverrideDefaultLocaleIfNeeded();
+ 
+ #ifdef MOZ_CRASHREPORTER
+   nsCString userAgentLocale;
+   // Try a localized string first. This pref is always a localized string in
+   // IceCatMobile, and might be elsewhere, too.
+   if (NS_SUCCEEDED(Preferences::GetLocalizedCString("general.useragent.locale", &userAgentLocale))) {
+     CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("useragent_locale"), userAgentLocale);
+diff --git a/toolkit/xre/nsEmbedFunctions.cpp b/toolkit/xre/nsEmbedFunctions.cpp
+--- a/toolkit/xre/nsEmbedFunctions.cpp
++++ b/toolkit/xre/nsEmbedFunctions.cpp
+@@ -46,16 +46,17 @@
+ #include "nsX11ErrorHandler.h"
+ #include "nsGDKErrorHandler.h"
+ #include "base/at_exit.h"
+ #include "base/command_line.h"
+ #include "base/message_loop.h"
+ #include "base/process_util.h"
+ #include "chrome/common/child_process.h"
+ 
++#include "mozilla/FilePreferences.h"
+ #include "mozilla/ipc/BrowserProcessSubThread.h"
+ #include "mozilla/ipc/GeckoChildProcessHost.h"
+ #include "mozilla/ipc/IOThreadChild.h"
+ #include "mozilla/ipc/ProcessChild.h"
+ #include "ScopedXREEmbed.h"
+ 
+ #include "mozilla/plugins/PluginProcessChild.h"
+ #include "mozilla/dom/ContentProcess.h"
+@@ -680,16 +681,18 @@ XRE_InitChildProcess(int aArgc,
+       ::SetProcessShutdownParameters(0x280 - 1, SHUTDOWN_NORETRY);
+ #endif
+ 
+ #if defined(MOZ_SANDBOX) && defined(XP_WIN)
+       // We need to do this after the process has been initialised, as
+       // InitLoggingIfRequired may need access to prefs.
+       mozilla::sandboxing::InitLoggingIfRequired(aChildData->ProvideLogFunction);
+ #endif
++      mozilla::FilePreferences::InitDirectoriesWhitelist();
++      mozilla::FilePreferences::InitPrefs();
+ 
+       OverrideDefaultLocaleIfNeeded();
+ 
+ #if defined(MOZ_CRASHREPORTER)
+ #if defined(MOZ_CONTENT_SANDBOX) && !defined(MOZ_WIDGET_GONK)
+       AddContentSandboxLevelAnnotation();
+ #endif
+ #endif
+diff --git a/xpcom/io/FilePreferences.cpp b/xpcom/io/FilePreferences.cpp
+new file mode 100644
+--- /dev/null
++++ b/xpcom/io/FilePreferences.cpp
+@@ -0,0 +1,271 @@
++/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
++/* vim: set ts=8 sts=2 et sw=2 tw=80: */
++/* 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 "FilePreferences.h"
++
++#include "mozilla/Preferences.h"
++#include "nsAppDirectoryServiceDefs.h"
++#include "nsDirectoryServiceDefs.h"
++#include "nsDirectoryServiceUtils.h"
++
++namespace mozilla {
++namespace FilePreferences {
++
++static bool sBlockUNCPaths = false;
++typedef nsTArray<nsString> Paths;
++
++static Paths& PathArray()
++{
++  static Paths sPaths;
++  return sPaths;
++}
++
++static void AllowDirectory(char const* directory)
++{
++  nsCOMPtr<nsIFile> file;
++  NS_GetSpecialDirectory(directory, getter_AddRefs(file));
++  if (!file) {
++    return;
++  }
++
++  nsString path;
++  if (NS_FAILED(file->GetTarget(path))) {
++    return;
++  }
++
++  // The whitelist makes sense only for UNC paths, because this code is used
++  // to block only UNC paths, hence, no need to add non-UNC directories here
++  // as those would never pass the check.
++  if (!StringBeginsWith(path, NS_LITERAL_STRING("\\\\"))) {
++    return;
++  }
++
++  if (!PathArray().Contains(path)) {
++    PathArray().AppendElement(path);
++  }
++}
++
++void InitPrefs()
++{
++  sBlockUNCPaths = Preferences::GetBool("network.file.disable_unc_paths", false);
++}
++
++void InitDirectoriesWhitelist()
++{
++  // NS_GRE_DIR is the installation path where the binary resides.
++  AllowDirectory(NS_GRE_DIR);
++  // NS_APP_USER_PROFILE_50_DIR and NS_APP_USER_PROFILE_LOCAL_50_DIR are the two
++  // parts of the profile we store permanent and local-specific data.
++  AllowDirectory(NS_APP_USER_PROFILE_50_DIR);
++  AllowDirectory(NS_APP_USER_PROFILE_LOCAL_50_DIR);
++}
++
++namespace { // anon
++
++class Normalizer
++{
++public:
++  Normalizer(const nsAString& aFilePath, const char16_t aSeparator);
++  bool Get(nsAString& aNormalizedFilePath);
++
++private:
++  bool ConsumeItem();
++  bool ConsumeSeparator();
++  bool IsEOF() { return mFilePathCursor == mFilePathEnd; }
++
++  bool ConsumeName();
++  bool CheckParentDir();
++  bool CheckCurrentDir();
++
++  nsString::const_char_iterator mFilePathCursor;
++  nsString::const_char_iterator mFilePathEnd;
++
++  nsDependentSubstring mItem;
++  char16_t const mSeparator;
++  nsTArray<nsDependentSubstring> mStack;
++};
++
++Normalizer::Normalizer(const nsAString& aFilePath, const char16_t aSeparator)
++  : mFilePathCursor(aFilePath.BeginReading())
++  , mFilePathEnd(aFilePath.EndReading())
++  , mSeparator(aSeparator)
++{
++}
++
++bool Normalizer::ConsumeItem()
++{
++  if (IsEOF()) {
++    return false;
++  }
++
++  nsString::const_char_iterator nameBegin = mFilePathCursor;
++  while (mFilePathCursor != mFilePathEnd) {
++    if (*mFilePathCursor == mSeparator) {
++      break; // don't include the separator
++    }
++    ++mFilePathCursor;
++  }
++
++  mItem.Rebind(nameBegin, mFilePathCursor);
++  return true;
++}
++
++bool Normalizer::ConsumeSeparator()
++{
++  if (IsEOF()) {
++    return false;
++  }
++
++  if (*mFilePathCursor != mSeparator) {
++    return false;
++  }
++
++  ++mFilePathCursor;
++  return true;
++}
++
++bool Normalizer::Get(nsAString& aNormalizedFilePath)
++{
++  aNormalizedFilePath.Truncate();
++
++  if (IsEOF()) {
++    return true;
++  }
++  if (ConsumeSeparator()) {
++    aNormalizedFilePath.Append(mSeparator);
++  }
++
++  if (IsEOF()) {
++    return true;
++  }
++  if (ConsumeSeparator()) {
++    aNormalizedFilePath.Append(mSeparator);
++  }
++
++  while (!IsEOF()) {
++    if (!ConsumeName()) {
++      return false;
++    }
++  }
++
++  for (auto const& name : mStack) {
++    aNormalizedFilePath.Append(name);
++  }
++
++  return true;
++}
++
++bool Normalizer::ConsumeName()
++{
++  if (!ConsumeItem()) {
++    return true;
++  }
++
++  if (CheckCurrentDir()) {
++    return true;
++  }
++
++  if (CheckParentDir()) {
++    if (!mStack.Length()) {
++      // This means there are more \.. than valid names
++      return false;
++    }
++
++    mStack.RemoveElementAt(mStack.Length() - 1);
++    return true;
++  }
++
++  if (mItem.IsEmpty()) {
++    // this means an empty name (a lone slash), which is illegal
++    return false;
++  }
++
++  if (ConsumeSeparator()) {
++    mItem.Rebind(mItem.BeginReading(), mFilePathCursor);
++  }
++  mStack.AppendElement(mItem);
++
++  return true;
++}
++
++bool Normalizer::CheckCurrentDir()
++{
++  if (mItem == NS_LITERAL_STRING(".")) {
++    ConsumeSeparator();
++    // EOF is acceptable
++    return true;
++  }
++
++  return false;
++}
++
++bool Normalizer::CheckParentDir()
++{
++  if (mItem == NS_LITERAL_STRING("..")) {
++    ConsumeSeparator();
++    // EOF is acceptable
++    return true;
++  }
++
++  return false;
++}
++
++} // anon
++
++bool IsBlockedUNCPath(const nsAString& aFilePath)
++{
++  if (!sBlockUNCPaths) {
++    return false;
++  }
++
++  if (!StringBeginsWith(aFilePath, NS_LITERAL_STRING("\\\\"))) {
++    return false;
++  }
++
++  nsAutoString normalized;
++  if (!Normalizer(aFilePath, L'\\').Get(normalized)) {
++    // Broken paths are considered invalid and thus inaccessible
++    return true;
++  }
++
++  for (const auto& allowedPrefix : PathArray()) {
++    if (StringBeginsWith(normalized, allowedPrefix)) {
++      if (normalized.Length() == allowedPrefix.Length()) {
++        return false;
++      }
++      if (normalized[allowedPrefix.Length()] == L'\\') {
++        return false;
++      }
++
++      // When we are here, the path has a form "\\path\prefixevil"
++      // while we have an allowed prefix of "\\path\prefix".
++      // Note that we don't want to add a slash to the end of a prefix
++      // so that opening the directory (no slash at the end) still works.
++      break;
++    }
++  }
++
++  return true;
++}
++
++void testing::SetBlockUNCPaths(bool aBlock)
++{
++  sBlockUNCPaths = aBlock;
++}
++
++void testing::AddDirectoryToWhitelist(nsAString const & aPath)
++{
++  PathArray().AppendElement(aPath);
++}
++
++bool testing::NormalizePath(nsAString const & aPath, nsAString & aNormalized)
++{
++  Normalizer normalizer(aPath, L'\\');
++  return normalizer.Get(aNormalized);
++}
++
++} // ::FilePreferences
++} // ::mozilla
+diff --git a/xpcom/io/FilePreferences.h b/xpcom/io/FilePreferences.h
+new file mode 100644
+--- /dev/null
++++ b/xpcom/io/FilePreferences.h
+@@ -0,0 +1,25 @@
++/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
++/* vim: set ts=8 sts=2 et sw=2 tw=80: */
++/* 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 "nsIObserver.h"
++
++namespace mozilla {
++namespace FilePreferences {
++
++void InitPrefs();
++void InitDirectoriesWhitelist();
++bool IsBlockedUNCPath(const nsAString& aFilePath);
++
++namespace testing {
++
++void SetBlockUNCPaths(bool aBlock);
++void AddDirectoryToWhitelist(nsAString const& aPath);
++bool NormalizePath(nsAString const & aPath, nsAString & aNormalized);
++
++}
++
++} // FilePreferences
++} // mozilla
+diff --git a/xpcom/io/moz.build b/xpcom/io/moz.build
+--- a/xpcom/io/moz.build
++++ b/xpcom/io/moz.build
+@@ -79,24 +79,26 @@ EXPORTS += [
+     'nsUnicharInputStream.h',
+     'nsWildCard.h',
+     'SlicedInputStream.h',
+     'SpecialSystemDirectory.h',
+ ]
+ 
+ EXPORTS.mozilla += [
+     'Base64.h',
++    'FilePreferences.h',
+     'SnappyCompressOutputStream.h',
+     'SnappyFrameUtils.h',
+     'SnappyUncompressInputStream.h',
+ ]
+ 
+ UNIFIED_SOURCES += [
+     'Base64.cpp',
+     'crc32c.c',
++    'FilePreferences.cpp',
+     'nsAnonymousTemporaryFile.cpp',
+     'nsAppFileLocationProvider.cpp',
+     'nsBinaryStream.cpp',
+     'nsDirectoryService.cpp',
+     'nsEscape.cpp',
+     'nsInputStreamTee.cpp',
+     'nsIOUtil.cpp',
+     'nsLinebreakConverter.cpp',
+diff --git a/xpcom/io/nsLocalFileWin.cpp b/xpcom/io/nsLocalFileWin.cpp
+--- a/xpcom/io/nsLocalFileWin.cpp
++++ b/xpcom/io/nsLocalFileWin.cpp
+@@ -41,16 +41,17 @@
+ #include  <stdio.h>
+ #include  <stdlib.h>
+ #include  <mbstring.h>
+ 
+ #include "nsXPIDLString.h"
+ #include "prproces.h"
+ #include "prlink.h"
+ 
++#include "mozilla/FilePreferences.h"
+ #include "mozilla/Mutex.h"
+ #include "SpecialSystemDirectory.h"
+ 
+ #include "nsTraceRefcnt.h"
+ #include "nsXPCOMCIDInternal.h"
+ #include "nsThreadUtils.h"
+ #include "nsXULAppAPI.h"
+ 
+@@ -1162,16 +1163,20 @@ nsLocalFile::InitWithPath(const nsAStrin
+   char16_t secondChar = *(++begin);
+ 
+   // just do a sanity check.  if it has any forward slashes, it is not a Native path
+   // on windows.  Also, it must have a colon at after the first char.
+   if (FindCharInReadable(L'/', begin, end)) {
+     return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+   }
+ 
++  if (FilePreferences::IsBlockedUNCPath(aFilePath)) {
++    return NS_ERROR_FILE_ACCESS_DENIED;
++  }
++
+   if (secondChar != L':' && (secondChar != L'\\' || firstChar != L'\\')) {
+     return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+   }
+ 
+   if (secondChar == L':') {
+     // Make sure we have a valid drive, later code assumes the drive letter
+     // is a single char a-z or A-Z.
+     if (PathGetDriveNumberW(aFilePath.Data()) == -1) {
+@@ -1974,16 +1979,20 @@ nsLocalFile::CopySingleFile(nsIFile* aSo
+     bool path1Remote, path2Remote;
+     if (!IsRemoteFilePath(filePath.get(), path1Remote) ||
+         !IsRemoteFilePath(destPath.get(), path2Remote) ||
+         path1Remote || path2Remote) {
+       dwCopyFlags |= COPY_FILE_NO_BUFFERING;
+     }
+   }
+ 
++  if (FilePreferences::IsBlockedUNCPath(destPath)) {
++    return NS_ERROR_FILE_ACCESS_DENIED;
++  }
++
+   if (!move) {
+     copyOK = ::CopyFileExW(filePath.get(), destPath.get(), nullptr,
+                            nullptr, nullptr, dwCopyFlags);
+   } else {
+     copyOK = ::MoveFileExW(filePath.get(), destPath.get(),
+                            MOVEFILE_REPLACE_EXISTING);
+ 
+     // Check if copying the source file to a different volume,
+diff --git a/xpcom/tests/gtest/TestFilePreferencesWin.cpp b/xpcom/tests/gtest/TestFilePreferencesWin.cpp
+new file mode 100644
+--- /dev/null
++++ b/xpcom/tests/gtest/TestFilePreferencesWin.cpp
+@@ -0,0 +1,141 @@
++#include "gtest/gtest.h"
++
++#include "mozilla/FilePreferences.h"
++#include "nsIFile.h"
++#include "nsXPCOMCID.h"
++
++TEST(FilePreferencesWin, Normalization)
++{
++  nsAutoString normalized;
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("foo"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("foo"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\foo"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\foo"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("foo\\some"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("foo\\some"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.\\foo"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\."), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.\\."), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\bar"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\bar\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\."), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\bar\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\.\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\bar\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\..\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\.."), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\foo\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\..\\bar\\..\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\..\\bar"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\bar"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\..\\..\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\.\\..\\.\\..\\"), normalized);
++  ASSERT_TRUE(normalized == NS_LITERAL_STRING("\\\\"));
++
++  bool result;
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.."), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\..\\"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.\\..\\"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\\\bar"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\foo\\bar\\..\\..\\..\\..\\"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\\\"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\.\\\\"), normalized);
++  ASSERT_FALSE(result);
++
++  result = mozilla::FilePreferences::testing::NormalizePath(
++    NS_LITERAL_STRING("\\\\..\\\\"), normalized);
++  ASSERT_FALSE(result);
++}
++
++TEST(FilePreferencesWin, AccessUNC)
++{
++  nsCOMPtr<nsIFile> lf = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
++
++  nsresult rv;
++
++  mozilla::FilePreferences::testing::SetBlockUNCPaths(false);
++
++  rv = lf->InitWithPath(NS_LITERAL_STRING("\\\\nice\\..\\evil\\share"));
++  ASSERT_EQ(rv, NS_OK);
++
++  mozilla::FilePreferences::testing::SetBlockUNCPaths(true);
++
++  rv = lf->InitWithPath(NS_LITERAL_STRING("\\\\nice\\..\\evil\\share"));
++  ASSERT_EQ(rv, NS_ERROR_FILE_ACCESS_DENIED);
++
++  mozilla::FilePreferences::testing::AddDirectoryToWhitelist(NS_LITERAL_STRING("\\\\nice"));
++
++  rv = lf->InitWithPath(NS_LITERAL_STRING("\\\\nice\\share"));
++  ASSERT_EQ(rv, NS_OK);
++
++  rv = lf->InitWithPath(NS_LITERAL_STRING("\\\\nice\\..\\evil\\share"));
++  ASSERT_EQ(rv, NS_ERROR_FILE_ACCESS_DENIED);
++}
+diff --git a/xpcom/tests/gtest/moz.build b/xpcom/tests/gtest/moz.build
+--- a/xpcom/tests/gtest/moz.build
++++ b/xpcom/tests/gtest/moz.build
+@@ -51,16 +51,21 @@ UNIFIED_SOURCES += [
+ if CONFIG['MOZ_DEBUG'] and CONFIG['OS_ARCH'] not in ('WINNT') and CONFIG['OS_TARGET'] != 'Android':
+     # FIXME bug 523392: TestDeadlockDetector doesn't like Windows
+     # Bug 1054249: Doesn't work on Android
+     UNIFIED_SOURCES += [
+         'TestDeadlockDetector.cpp',
+         'TestDeadlockDetectorScalability.cpp',
+     ]
+ 
++if CONFIG['OS_TARGET'] == 'WINNT':
++    UNIFIED_SOURCES += [
++        'TestFilePreferencesWin.cpp',
++    ]
++
+ if CONFIG['WRAP_STL_INCLUDES'] and not CONFIG['CLANG_CL']:
+     UNIFIED_SOURCES += [
+         'TestSTLWrappers.cpp',
+     ]
+ 
+ # Compile TestAllocReplacement separately so Windows headers don't pollute
+ # the global namespace for other files.
+ SOURCES += [
+