| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "stdafx.h" |
| #include "win8/metro_driver/metro_driver.h" |
| |
| #include <roerrorapi.h> |
| #include <shobjidl.h> |
| |
| #include "base/at_exit.h" |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/logging_win.h" |
| #include "base/win/scoped_comptr.h" |
| #include "win8/metro_driver/winrt_utils.h" |
| #include "sandbox/win/src/sidestep/preamble_patcher.h" |
| |
| #if !defined(USE_AURA) |
| #include "win8/metro_driver/chrome_app_view.h" |
| #endif |
| |
| // TODO(siggi): Move this to GYP. |
| #pragma comment(lib, "runtimeobject.lib") |
| |
| namespace { |
| |
| LONG WINAPI ErrorReportingHandler(EXCEPTION_POINTERS* ex_info) { |
| // See roerrorapi.h for a description of the |
| // exception codes and parameters. |
| DWORD code = ex_info->ExceptionRecord->ExceptionCode; |
| ULONG_PTR* info = ex_info->ExceptionRecord->ExceptionInformation; |
| if (code == EXCEPTION_RO_ORIGINATEERROR) { |
| string16 msg(reinterpret_cast<wchar_t*>(info[2]), info[1]); |
| LOG(ERROR) << "VEH: Metro error 0x" << std::hex << info[0] << ": " << msg; |
| } else if (code == EXCEPTION_RO_TRANSFORMERROR) { |
| string16 msg(reinterpret_cast<wchar_t*>(info[3]), info[2]); |
| LOG(ERROR) << "VEH: Metro old error 0x" << std::hex << info[0] |
| << " new error 0x" << info[1] << ": " << msg; |
| } |
| |
| return EXCEPTION_CONTINUE_SEARCH; |
| } |
| |
| // TODO(robertshield): This GUID is hard-coded in a bunch of places that |
| // don't allow explicit includes. Find a single place for it to live. |
| // {7FE69228-633E-4f06-80C1-527FEA23E3A7} |
| const GUID kChromeTraceProviderName = { |
| 0x7fe69228, 0x633e, 0x4f06, |
| { 0x80, 0xc1, 0x52, 0x7f, 0xea, 0x23, 0xe3, 0xa7 } }; |
| |
| } |
| // Required for base initialization. |
| // TODO(siggi): This should be handled better, as this way our at exit |
| // registrations will run under the loader's lock. However, |
| // once metro_driver is merged into Chrome.dll, this will go away anyhow. |
| base::AtExitManager at_exit; |
| |
| namespace Hacks { |
| |
| typedef BOOL (WINAPI* IsImmersiveFunctionPtr)(HANDLE process); |
| char* g_real_is_immersive_proc_stub = NULL; |
| |
| HMODULE g_webrtc_quartz_dll_handle = NULL; |
| bool g_fake_is_immersive_process_ret = false; |
| |
| BOOL WINAPI MetroChromeIsImmersiveIntercept(HANDLE process) { |
| if (g_fake_is_immersive_process_ret && process == ::GetCurrentProcess()) |
| return FALSE; |
| |
| IsImmersiveFunctionPtr real_proc = |
| reinterpret_cast<IsImmersiveFunctionPtr>( |
| static_cast<char*>(g_real_is_immersive_proc_stub)); |
| return real_proc(process); |
| } |
| |
| void MetroSpecificHacksInitialize() { |
| // The quartz dll which is used by the webrtc code in Chrome fails in a metro |
| // app. It checks this via the IsImmersiveProcess export in user32. We |
| // intercept the same and spoof the value as false. This is ok as technically |
| // a metro browser is not a real metro application. The webrtc functionality |
| // works fine with this hack. |
| // TODO(tommi) |
| // BUG:- https://code.google.com/p/chromium/issues/detail?id=140545 |
| // We should look into using media foundation on windows 8 in metro chrome. |
| IsImmersiveFunctionPtr is_immersive_func_address = |
| reinterpret_cast<IsImmersiveFunctionPtr>(::GetProcAddress( |
| ::GetModuleHandle(L"user32.dll"), "IsImmersiveProcess")); |
| DCHECK(is_immersive_func_address); |
| |
| // Allow the function to be patched by changing the protections on the page. |
| DWORD old_protect = 0; |
| ::VirtualProtect(is_immersive_func_address, 5, PAGE_EXECUTE_READWRITE, |
| &old_protect); |
| |
| DCHECK(g_real_is_immersive_proc_stub == NULL); |
| g_real_is_immersive_proc_stub = reinterpret_cast<char*>(VirtualAllocEx( |
| ::GetCurrentProcess(), NULL, sidestep::kMaxPreambleStubSize, |
| MEM_COMMIT, PAGE_EXECUTE_READWRITE)); |
| DCHECK(g_real_is_immersive_proc_stub); |
| |
| sidestep::SideStepError patch_result = |
| sidestep::PreamblePatcher::Patch( |
| is_immersive_func_address, MetroChromeIsImmersiveIntercept, |
| g_real_is_immersive_proc_stub, sidestep::kMaxPreambleStubSize); |
| |
| DCHECK(patch_result == sidestep::SIDESTEP_SUCCESS); |
| |
| // Restore the permissions on the page in user32 containing the |
| // IsImmersiveProcess function code. |
| DWORD dummy = 0; |
| ::VirtualProtect(is_immersive_func_address, 5, old_protect, &dummy); |
| |
| // Mimic the original page permissions from the IsImmersiveProcess page |
| // on our stub. |
| ::VirtualProtect(g_real_is_immersive_proc_stub, |
| sidestep::kMaxPreambleStubSize, |
| old_protect, |
| &old_protect); |
| |
| g_fake_is_immersive_process_ret = true; |
| g_webrtc_quartz_dll_handle = LoadLibrary(L"quartz.dll"); |
| g_fake_is_immersive_process_ret = false; |
| |
| DCHECK(g_webrtc_quartz_dll_handle); |
| if (!g_webrtc_quartz_dll_handle) { |
| DVLOG(1) << "Quartz dll load failed with error: " << GetLastError(); |
| } else { |
| // Pin the quartz module to protect against it being inadvarently unloaded. |
| ::GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_PIN, L"quartz.dll", |
| &g_webrtc_quartz_dll_handle); |
| } |
| } |
| |
| } // namespace Hacks |
| |
| extern "C" __declspec(dllexport) |
| int InitMetro(LPTHREAD_START_ROUTINE thread_proc, void* context) { |
| // Initialize the command line. |
| CommandLine::Init(0, NULL); |
| logging::InitLogging( |
| NULL, |
| logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG, |
| logging::LOCK_LOG_FILE, |
| logging::DELETE_OLD_LOG_FILE, |
| logging::DISABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS); |
| |
| #if defined(NDEBUG) |
| logging::SetMinLogLevel(logging::LOG_ERROR); |
| // Bind to the breakpad handling function. |
| globals.breakpad_exception_handler = |
| reinterpret_cast<BreakpadExceptionHandler>( |
| ::GetProcAddress(::GetModuleHandle(NULL), |
| "CrashForException")); |
| if (!globals.breakpad_exception_handler) { |
| DVLOG(0) << "CrashForException export not found"; |
| } |
| #else |
| logging::SetMinLogLevel(logging::LOG_VERBOSE); |
| // Set the error reporting flags to always raise an exception, |
| // which is then processed by our vectored exception handling |
| // above to log the error message. |
| winfoundtn::Diagnostics::SetErrorReportingFlags( |
| winfoundtn::Diagnostics::UseSetErrorInfo | |
| winfoundtn::Diagnostics::ForceExceptions); |
| |
| HANDLE registration = |
| ::AddVectoredExceptionHandler(TRUE, ErrorReportingHandler); |
| #endif |
| |
| // Enable trace control and transport through event tracing for Windows. |
| logging::LogEventProvider::Initialize(kChromeTraceProviderName); |
| |
| DVLOG(1) << "InitMetro"; |
| |
| mswrw::RoInitializeWrapper ro_initializer(RO_INIT_MULTITHREADED); |
| CheckHR(ro_initializer, "RoInitialize failed"); |
| |
| mswr::ComPtr<winapp::Core::ICoreApplication> core_app; |
| HRESULT hr = winrt_utils::CreateActivationFactory( |
| RuntimeClass_Windows_ApplicationModel_Core_CoreApplication, |
| core_app.GetAddressOf()); |
| CheckHR(hr, "Failed to create app factory"); |
| if (FAILED(hr)) |
| return 1; |
| |
| #if !defined(USE_AURA) |
| // The metro specific hacks code assumes that there is only one thread active |
| // at the moment. This better be the case or we may have race conditions. |
| Hacks::MetroSpecificHacksInitialize(); |
| #endif |
| |
| auto view_factory = mswr::Make<ChromeAppViewFactory>( |
| core_app.Get(), thread_proc, context); |
| hr = core_app->Run(view_factory.Get()); |
| DVLOG(1) << "exiting InitMetro, hr=" << hr; |
| |
| #if !defined(NDEBUG) |
| ::RemoveVectoredExceptionHandler(registration); |
| #endif |
| |
| return hr; |
| } |
| |
| // Activates the application known by |app_id|. Returns, among other things, |
| // E_APPLICATION_NOT_REGISTERED if |app_id| identifies Chrome and Chrome is not |
| // the default browser. |
| extern "C" __declspec(dllexport) |
| HRESULT ActivateApplication(const wchar_t* app_id) { |
| base::win::ScopedComPtr<IApplicationActivationManager> activator; |
| HRESULT hr = activator.CreateInstance(CLSID_ApplicationActivationManager); |
| if (SUCCEEDED(hr)) { |
| DWORD pid = 0; |
| hr = activator->ActivateApplication(app_id, L"", AO_NONE, &pid); |
| } |
| return hr; |
| } |