src/content/renderer/renderer_main_platform_delegate_win.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/renderer_main_platform_delegate.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/string16.h"
  11 #include "base/win/win_util.h"
  12 #include "content/public/common/content_switches.h"
  13 #include "content/public/common/injection_test_win.h"
  14 #include "content/public/renderer/render_thread.h"
  15 #include "content/renderer/render_thread_impl.h"
  16 #include "sandbox/win/src/sandbox.h"
  17 #include "skia/ext/vector_platform_device_emf_win.h"
  18 #include "third_party/icu/source/i18n/unicode/timezone.h"
  19 #include "third_party/skia/include/ports/SkTypeface_win.h"
  20
  21 #ifdef ENABLE_VTUNE_JIT_INTERFACE
  22 #include "v8/src/third_party/vtune/v8-vtune.h"
  23 #endif
  24
  25 namespace content {
  26 namespace {
  27
  28 // Windows-only skia sandbox support
  29 void SkiaPreCacheFont(const LOGFONT& logfont) {
  30   RenderThread* render_thread = RenderThread::Get();
  31   if (render_thread) {
  32     render_thread->PreCacheFont(logfont);
  33   }
  34 }
  35
  36 void SkiaPreCacheFontCharacters(const LOGFONT& logfont,
  37                                 const wchar_t* text,
  38                                 unsigned int text_length) {
  39   RenderThreadImpl* render_thread_impl = RenderThreadImpl::current();
  40   if (render_thread_impl) {
  41     render_thread_impl->PreCacheFontCharacters(logfont,
  42                                                string16(text, text_length));
  43   }
  44 }
  45
  46 #if !defined(NDEBUG)
  47 LRESULT CALLBACK WindowsHookCBT(int code, WPARAM w_param, LPARAM l_param) {
  48   CHECK_NE(code, HCBT_CREATEWND)
  49       << "Should not be creating windows in the renderer!";
  50   return CallNextHookEx(NULL, code, w_param, l_param);
  51 }
  52 #endif  // !NDEBUG
  53
  54 }  // namespace
  55
  56 RendererMainPlatformDelegate::RendererMainPlatformDelegate(
  57     const MainFunctionParams& parameters)
  58         : parameters_(parameters),
  59           sandbox_test_module_(NULL) {
  60 }
  61
  62 RendererMainPlatformDelegate::~RendererMainPlatformDelegate() {
  63 }
  64
  65 void RendererMainPlatformDelegate::PlatformInitialize() {
  66 #if !defined(NDEBUG)
  67   // Install a check that we're not creating windows in the renderer. See
  68   // http://crbug.com/230122 for background. TODO(scottmg): Ideally this would
  69   // check all threads in the renderer, but it currently only checks the main
  70   // thread.
  71   PCHECK(
  72       SetWindowsHookEx(WH_CBT, WindowsHookCBT, NULL, ::GetCurrentThreadId()));
  73 #endif  // !NDEBUG
  74
  75   const CommandLine& command_line = parameters_.command_line;
  76
  77 #ifdef ENABLE_VTUNE_JIT_INTERFACE
  78   if (command_line.HasSwitch(switches::kEnableVtune))
  79     vTune::InitializeVtuneForV8();
  80 #endif
  81
  82   // Be mindful of what resources you acquire here. They can be used by
  83   // malicious code if the renderer gets compromised.
  84   bool no_sandbox = command_line.HasSwitch(switches::kNoSandbox);
  85
  86   if (!no_sandbox) {
  87     // ICU DateFormat class (used in base/time_format.cc) needs to get the
  88     // Olson timezone ID by accessing the registry keys under
  89     // HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones.
  90     // After TimeZone::createDefault is called once here, the timezone ID is
  91     // cached and there's no more need to access the registry. If the sandbox
  92     // is disabled, we don't have to make this dummy call.
  93     scoped_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault());
  94     SkTypeface_SetEnsureLOGFONTAccessibleProc(SkiaPreCacheFont);
  95     skia::SetSkiaEnsureTypefaceCharactersAccessible(
  96         SkiaPreCacheFontCharacters);
  97   }
  98 }
  99
 100 void RendererMainPlatformDelegate::PlatformUninitialize() {
 101 }
 102
 103 bool RendererMainPlatformDelegate::InitSandboxTests(bool no_sandbox) {
 104   const CommandLine& command_line = parameters_.command_line;
 105
 106   DVLOG(1) << "Started renderer with " << command_line.GetCommandLineString();
 107
 108   sandbox::TargetServices* target_services =
 109       parameters_.sandbox_info->target_services;
 110
 111   if (target_services && !no_sandbox) {
 112       std::wstring test_dll_name =
 113           command_line.GetSwitchValueNative(switches::kTestSandbox);
 114     if (!test_dll_name.empty()) {
 115       sandbox_test_module_ = LoadLibrary(test_dll_name.c_str());
 116       DCHECK(sandbox_test_module_);
 117       if (!sandbox_test_module_) {
 118         return false;
 119       }
 120     }
 121   }
 122   return true;
 123 }
 124
 125 bool RendererMainPlatformDelegate::EnableSandbox() {
 126   sandbox::TargetServices* target_services =
 127       parameters_.sandbox_info->target_services;
 128
 129   if (target_services) {
 130     // Cause advapi32 to load before the sandbox is turned on.
 131     unsigned int dummy_rand;
 132     rand_s(&dummy_rand);
 133     // Warm up language subsystems before the sandbox is turned on.
 134     ::GetUserDefaultLangID();
 135     ::GetUserDefaultLCID();
 136
 137     target_services->LowerToken();
 138     return true;
 139   }
 140   return false;
 141 }
 142
 143 void RendererMainPlatformDelegate::RunSandboxTests(bool no_sandbox) {
 144   if (sandbox_test_module_) {
 145     RunRendererTests run_security_tests =
 146         reinterpret_cast<RunRendererTests>(GetProcAddress(sandbox_test_module_,
 147                                                           kRenderTestCall));
 148     DCHECK(run_security_tests);
 149     if (run_security_tests) {
 150       int test_count = 0;
 151       DVLOG(1) << "Running renderer security tests";
 152       BOOL result = run_security_tests(&test_count);
 153       CHECK(result) << "Test number " << test_count << " has failed.";
 154     }
 155   }
 156 }
 157
 158 }  // namespace content