// 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 "chrome/common/chrome_content_client.h" #if defined(OS_LINUX) #include #endif // defined(OS_LINUX) #include "base/command_line.h" #include "base/debug/crash_logging.h" #include "base/files/file_util.h" #include "base/json/json_reader.h" #include "base/memory/scoped_vector.h" #include "base/path_service.h" #include "base/strings/string16.h" #include "base/strings/string_number_conversions.h" #include "base/strings/string_split.h" #include "base/strings/string_util.h" #include "base/strings/stringprintf.h" #include "base/strings/utf_string_conversions.h" #include "build/build_config.h" #include "chrome/common/child_process_logging.h" #include "chrome/common/chrome_constants.h" #include "chrome/common/chrome_paths.h" #include "chrome/common/chrome_switches.h" #include "chrome/common/crash_keys.h" #include "chrome/common/pepper_flash.h" #include "chrome/common/secure_origin_whitelist.h" #include "chrome/common/url_constants.h" #include "chrome/grit/common_resources.h" #include "components/dom_distiller/core/url_constants.h" #include "components/version_info/version_info.h" #include "content/public/common/content_constants.h" #include "content/public/common/content_switches.h" #include "content/public/common/url_constants.h" #include "content/public/common/user_agent.h" #include "extensions/common/constants.h" #include "gpu/config/gpu_info.h" #include "net/http/http_util.h" #include "ui/base/l10n/l10n_util.h" #include "ui/base/layout.h" #include "ui/base/resource/resource_bundle.h" #include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR. #if defined(OS_LINUX) #include "chrome/common/component_flash_hint_file_linux.h" #endif // defined(OS_LINUX) #if defined(OS_WIN) #include "base/win/registry.h" #include "base/win/windows_version.h" #endif #if !defined(DISABLE_NACL) #include "components/nacl/common/nacl_constants.h" #include "components/nacl/common/nacl_process_type.h" #include "components/nacl/common/nacl_sandbox_type.h" #endif #if defined(ENABLE_PLUGINS) #include "content/public/common/pepper_plugin_info.h" #include "flapper_version.h" // In SHARED_INTERMEDIATE_DIR. #include "ppapi/shared_impl/ppapi_permissions.h" #endif #if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS) && \ !defined(WIDEVINE_CDM_IS_COMPONENT) #include "chrome/common/widevine_cdm_constants.h" #endif namespace { #if defined(ENABLE_PLUGINS) const char kPDFPluginExtension[] = "pdf"; const char kPDFPluginDescription[] = "Portable Document Format"; const char kPDFPluginOutOfProcessMimeType[] = "application/x-google-chrome-pdf"; const uint32 kPDFPluginPermissions = ppapi::PERMISSION_PRIVATE | ppapi::PERMISSION_DEV; content::PepperPluginInfo::GetInterfaceFunc g_pdf_get_interface; content::PepperPluginInfo::PPP_InitializeModuleFunc g_pdf_initialize_module; content::PepperPluginInfo::PPP_ShutdownModuleFunc g_pdf_shutdown_module; #if !defined(DISABLE_NACL) content::PepperPluginInfo::GetInterfaceFunc g_nacl_get_interface; content::PepperPluginInfo::PPP_InitializeModuleFunc g_nacl_initialize_module; content::PepperPluginInfo::PPP_ShutdownModuleFunc g_nacl_shutdown_module; #endif // Appends the known built-in plugins to the given vector. Some built-in // plugins are "internal" which means they are compiled into the Chrome binary, // and some are extra shared libraries distributed with the browser (these are // not marked internal, aside from being automatically registered, they're just // regular plugins). void ComputeBuiltInPlugins(std::vector* plugins) { content::PepperPluginInfo pdf_info; pdf_info.is_internal = true; pdf_info.is_out_of_process = true; pdf_info.name = ChromeContentClient::kPDFPluginName; pdf_info.description = kPDFPluginDescription; pdf_info.path = base::FilePath::FromUTF8Unsafe( ChromeContentClient::kPDFPluginPath); content::WebPluginMimeType pdf_mime_type( kPDFPluginOutOfProcessMimeType, kPDFPluginExtension, kPDFPluginDescription); pdf_info.mime_types.push_back(pdf_mime_type); pdf_info.internal_entry_points.get_interface = g_pdf_get_interface; pdf_info.internal_entry_points.initialize_module = g_pdf_initialize_module; pdf_info.internal_entry_points.shutdown_module = g_pdf_shutdown_module; pdf_info.permissions = kPDFPluginPermissions; plugins->push_back(pdf_info); base::FilePath path; #if !defined(DISABLE_NACL) // Handle Native Client just like the PDF plugin. This means that it is // enabled by default for the non-portable case. This allows apps installed // from the Chrome Web Store to use NaCl even if the command line switch // isn't set. For other uses of NaCl we check for the command line switch. if (PathService::Get(chrome::FILE_NACL_PLUGIN, &path)) { content::PepperPluginInfo nacl; // The nacl plugin is now built into the Chromium binary. nacl.is_internal = true; nacl.path = path; nacl.name = nacl::kNaClPluginName; content::WebPluginMimeType nacl_mime_type(nacl::kNaClPluginMimeType, nacl::kNaClPluginExtension, nacl::kNaClPluginDescription); nacl.mime_types.push_back(nacl_mime_type); content::WebPluginMimeType pnacl_mime_type(nacl::kPnaclPluginMimeType, nacl::kPnaclPluginExtension, nacl::kPnaclPluginDescription); nacl.mime_types.push_back(pnacl_mime_type); nacl.internal_entry_points.get_interface = g_nacl_get_interface; nacl.internal_entry_points.initialize_module = g_nacl_initialize_module; nacl.internal_entry_points.shutdown_module = g_nacl_shutdown_module; nacl.permissions = ppapi::PERMISSION_PRIVATE | ppapi::PERMISSION_DEV; plugins->push_back(nacl); } #endif // !defined(DISABLE_NACL) #if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS) && \ !defined(WIDEVINE_CDM_IS_COMPONENT) static bool skip_widevine_cdm_file_check = false; if (PathService::Get(chrome::FILE_WIDEVINE_CDM_ADAPTER, &path)) { if (skip_widevine_cdm_file_check || base::PathExists(path)) { content::PepperPluginInfo widevine_cdm; widevine_cdm.is_out_of_process = true; widevine_cdm.path = path; widevine_cdm.name = kWidevineCdmDisplayName; widevine_cdm.description = kWidevineCdmDescription + std::string(" (version: ") + WIDEVINE_CDM_VERSION_STRING + ")"; widevine_cdm.version = WIDEVINE_CDM_VERSION_STRING; content::WebPluginMimeType widevine_cdm_mime_type( kWidevineCdmPluginMimeType, kWidevineCdmPluginExtension, kWidevineCdmPluginMimeTypeDescription); // Add the supported codecs as if they came from the component manifest. std::vector codecs; codecs.push_back(kCdmSupportedCodecVorbis); codecs.push_back(kCdmSupportedCodecVp8); codecs.push_back(kCdmSupportedCodecVp9); #if defined(USE_PROPRIETARY_CODECS) codecs.push_back(kCdmSupportedCodecAac); codecs.push_back(kCdmSupportedCodecAvc1); #endif // defined(USE_PROPRIETARY_CODECS) std::string codec_string = base::JoinString( codecs, std::string(1, kCdmSupportedCodecsValueDelimiter)); widevine_cdm_mime_type.additional_param_names.push_back( base::ASCIIToUTF16(kCdmSupportedCodecsParamName)); widevine_cdm_mime_type.additional_param_values.push_back( base::ASCIIToUTF16(codec_string)); widevine_cdm.mime_types.push_back(widevine_cdm_mime_type); widevine_cdm.permissions = kWidevineCdmPluginPermissions; plugins->push_back(widevine_cdm); skip_widevine_cdm_file_check = true; } } #endif // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS) && // !defined(WIDEVINE_CDM_IS_COMPONENT) } content::PepperPluginInfo CreatePepperFlashInfo(const base::FilePath& path, const std::string& version) { content::PepperPluginInfo plugin; plugin.is_out_of_process = true; plugin.name = content::kFlashPluginName; plugin.path = path; plugin.permissions = chrome::kPepperFlashPermissions; std::vector flash_version_numbers = base::SplitString( version, ".", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY); if (flash_version_numbers.size() < 1) flash_version_numbers.push_back("11"); if (flash_version_numbers.size() < 2) flash_version_numbers.push_back("2"); if (flash_version_numbers.size() < 3) flash_version_numbers.push_back("999"); if (flash_version_numbers.size() < 4) flash_version_numbers.push_back("999"); // E.g., "Shockwave Flash 10.2 r154": plugin.description = plugin.name + " " + flash_version_numbers[0] + "." + flash_version_numbers[1] + " r" + flash_version_numbers[2]; plugin.version = base::JoinString(flash_version_numbers, "."); content::WebPluginMimeType swf_mime_type(content::kFlashPluginSwfMimeType, content::kFlashPluginSwfExtension, content::kFlashPluginSwfDescription); plugin.mime_types.push_back(swf_mime_type); content::WebPluginMimeType spl_mime_type(content::kFlashPluginSplMimeType, content::kFlashPluginSplExtension, content::kFlashPluginSplDescription); plugin.mime_types.push_back(spl_mime_type); return plugin; } void AddPepperFlashFromCommandLine( std::vector* plugins) { const base::CommandLine::StringType flash_path = base::CommandLine::ForCurrentProcess()->GetSwitchValueNative( switches::kPpapiFlashPath); if (flash_path.empty()) return; // Also get the version from the command-line. Should be something like 11.2 // or 11.2.123.45. std::string flash_version = base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII( switches::kPpapiFlashVersion); plugins->push_back( CreatePepperFlashInfo(base::FilePath(flash_path), flash_version)); } #if defined(OS_LINUX) // This function tests if DIR_USER_DATA can be accessed, as a simple check to // see if the zygote has been sandboxed at this point. bool IsUserDataDirAvailable() { base::FilePath user_data_dir; return PathService::Get(chrome::DIR_USER_DATA, &user_data_dir); } // This method is used on Linux only because of architectural differences in how // it loads the component updated flash plugin, and not because the other // platforms do not support component updated flash. On other platforms, the // component updater sends an IPC message to all threads, at undefined points in // time, with the URL of the component updated flash. Because the linux zygote // thread has no access to the file system after it warms up, it must preload // the component updated flash. bool GetComponentUpdatedPepperFlash(content::PepperPluginInfo* plugin) { #if defined(FLAPPER_AVAILABLE) if (component_flash_hint_file::DoesHintFileExist()) { base::FilePath flash_path; std::string version; if (component_flash_hint_file::VerifyAndReturnFlashLocation(&flash_path, &version)) { // Test if the file can be mapped as executable. If the user's home // directory is mounted noexec, the component flash plugin will not load. // By testing for this, Chrome can fallback to the bundled flash plugin. if (!component_flash_hint_file::TestExecutableMapping(flash_path)) { LOG(WARNING) << "The component updated flash plugin could not be " "mapped as executable. Attempting to fallback to the " "bundled or system plugin."; return false; } *plugin = CreatePepperFlashInfo(flash_path, version); return true; } LOG(ERROR) << "Failed to locate and load the component updated flash plugin."; } #endif // defined(FLAPPER_AVAILABLE) return false; } #endif // defined(OS_LINUX) bool GetBundledPepperFlash(content::PepperPluginInfo* plugin) { #if defined(FLAPPER_AVAILABLE) base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); // Ignore bundled Pepper Flash if there is Pepper Flash specified from the // command-line. if (command_line->HasSwitch(switches::kPpapiFlashPath)) return false; bool force_disable = command_line->HasSwitch(switches::kDisableBundledPpapiFlash); if (force_disable) return false; base::FilePath flash_path; if (!PathService::Get(chrome::FILE_PEPPER_FLASH_PLUGIN, &flash_path)) return false; *plugin = CreatePepperFlashInfo(flash_path, FLAPPER_VERSION_STRING); return true; #else return false; #endif // FLAPPER_AVAILABLE } #if defined(FLAPPER_AVAILABLE) bool IsSystemFlashScriptDebuggerPresent() { #if defined(OS_WIN) const wchar_t kFlashRegistryRoot[] = L"SOFTWARE\\Macromedia\\FlashPlayerPepper"; const wchar_t kIsDebuggerValueName[] = L"isScriptDebugger"; base::win::RegKey path_key(HKEY_LOCAL_MACHINE, kFlashRegistryRoot, KEY_READ); DWORD debug_value; if (FAILED(path_key.ReadValueDW(kIsDebuggerValueName, &debug_value))) return false; return (debug_value == 1); #else // TODO(wfh): implement this on OS X and Linux. crbug.com/497996. return false; #endif } #endif bool GetSystemPepperFlash(content::PepperPluginInfo* plugin) { base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); #if defined(FLAPPER_AVAILABLE) // If flapper is available, only try the system plugin if either: // --disable-bundled-ppapi-flash is specified, or the system debugger is the // Flash Script Debugger. if (!command_line->HasSwitch(switches::kDisableBundledPpapiFlash) && !IsSystemFlashScriptDebuggerPresent()) return false; #endif // defined(FLAPPER_AVAILABLE) // Do not try and find System Pepper Flash if there is a specific path on // the commmand-line. if (command_line->HasSwitch(switches::kPpapiFlashPath)) return false; base::FilePath flash_filename; if (!PathService::Get(chrome::FILE_PEPPER_FLASH_SYSTEM_PLUGIN, &flash_filename)) return false; if (!base::PathExists(flash_filename)) return false; base::FilePath manifest_path( flash_filename.DirName().AppendASCII("manifest.json")); std::string manifest_data; if (!base::ReadFileToString(manifest_path, &manifest_data)) return false; scoped_ptr manifest_value( base::JSONReader::Read(manifest_data, base::JSON_ALLOW_TRAILING_COMMAS)); if (!manifest_value.get()) return false; base::DictionaryValue* manifest = NULL; if (!manifest_value->GetAsDictionary(&manifest)) return false; Version version; if (!chrome::CheckPepperFlashManifest(*manifest, &version)) return false; *plugin = CreatePepperFlashInfo(flash_filename, version.GetString()); return true; } #endif // defined(ENABLE_PLUGINS) std::string GetProduct() { return version_info::GetProductNameAndVersionForUserAgent(); } } // namespace std::string GetUserAgent() { base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); if (command_line->HasSwitch(switches::kUserAgent)) { std::string ua = command_line->GetSwitchValueASCII(switches::kUserAgent); if (net::HttpUtil::IsValidHeaderValue(ua)) return ua; LOG(WARNING) << "Ignored invalid value for flag --" << switches::kUserAgent; } std::string product = GetProduct(); #if defined(OS_ANDROID) if (command_line->HasSwitch(switches::kUseMobileUserAgent)) product += " Mobile"; #endif return content::BuildUserAgentFromProduct(product); } #if !defined(DISABLE_NACL) void ChromeContentClient::SetNaClEntryFunctions( content::PepperPluginInfo::GetInterfaceFunc get_interface, content::PepperPluginInfo::PPP_InitializeModuleFunc initialize_module, content::PepperPluginInfo::PPP_ShutdownModuleFunc shutdown_module) { g_nacl_get_interface = get_interface; g_nacl_initialize_module = initialize_module; g_nacl_shutdown_module = shutdown_module; } #endif #if defined(ENABLE_PLUGINS) void ChromeContentClient::SetPDFEntryFunctions( content::PepperPluginInfo::GetInterfaceFunc get_interface, content::PepperPluginInfo::PPP_InitializeModuleFunc initialize_module, content::PepperPluginInfo::PPP_ShutdownModuleFunc shutdown_module) { g_pdf_get_interface = get_interface; g_pdf_initialize_module = initialize_module; g_pdf_shutdown_module = shutdown_module; } #endif void ChromeContentClient::SetActiveURL(const GURL& url) { base::debug::SetCrashKeyValue(crash_keys::kActiveURL, url.possibly_invalid_spec()); } void ChromeContentClient::SetGpuInfo(const gpu::GPUInfo& gpu_info) { #if !defined(OS_ANDROID) base::debug::SetCrashKeyValue(crash_keys::kGPUVendorID, base::StringPrintf("0x%04x", gpu_info.gpu.vendor_id)); base::debug::SetCrashKeyValue(crash_keys::kGPUDeviceID, base::StringPrintf("0x%04x", gpu_info.gpu.device_id)); #endif base::debug::SetCrashKeyValue(crash_keys::kGPUDriverVersion, gpu_info.driver_version); base::debug::SetCrashKeyValue(crash_keys::kGPUPixelShaderVersion, gpu_info.pixel_shader_version); base::debug::SetCrashKeyValue(crash_keys::kGPUVertexShaderVersion, gpu_info.vertex_shader_version); #if defined(OS_MACOSX) base::debug::SetCrashKeyValue(crash_keys::kGPUGLVersion, gpu_info.gl_version); #elif defined(OS_POSIX) base::debug::SetCrashKeyValue(crash_keys::kGPUVendor, gpu_info.gl_vendor); base::debug::SetCrashKeyValue(crash_keys::kGPURenderer, gpu_info.gl_renderer); #endif } #if defined(ENABLE_PLUGINS) // static content::PepperPluginInfo* ChromeContentClient::FindMostRecentPlugin( const std::vector& plugins) { auto it = std::max_element( plugins.begin(), plugins.end(), [](content::PepperPluginInfo* x, content::PepperPluginInfo* y) { Version version_x(x->version); DCHECK(version_x.IsValid()); return version_x.IsOlderThan(y->version); }); return it != plugins.end() ? *it : nullptr; } #endif // defined(ENABLE_PLUGINS) void ChromeContentClient::AddPepperPlugins( std::vector* plugins) { #if defined(ENABLE_PLUGINS) ComputeBuiltInPlugins(plugins); AddPepperFlashFromCommandLine(plugins); #if defined(OS_LINUX) // Depending on the sandbox configurtion, the user data directory // is not always available. If it is not available, do not try and load any // flash plugin. The flash player, if any, preloaded before the sandbox // initialization will continue to be used. if (!IsUserDataDirAvailable()) { return; } #endif // defined(OS_LINUX) ScopedVector flash_versions; #if defined(OS_LINUX) scoped_ptr component_flash( new content::PepperPluginInfo); if (GetComponentUpdatedPepperFlash(component_flash.get())) flash_versions.push_back(component_flash.release()); #endif // defined(OS_LINUX) scoped_ptr bundled_flash( new content::PepperPluginInfo); if (GetBundledPepperFlash(bundled_flash.get())) flash_versions.push_back(bundled_flash.release()); scoped_ptr system_flash( new content::PepperPluginInfo); if (GetSystemPepperFlash(system_flash.get())) flash_versions.push_back(system_flash.release()); // This function will return only the most recent version of the flash plugin. content::PepperPluginInfo* max_flash = FindMostRecentPlugin(flash_versions.get()); if (max_flash) plugins->push_back(*max_flash); #endif // defined(ENABLE_PLUGINS) } void ChromeContentClient::AddAdditionalSchemes( std::vector* standard_schemes, std::vector* savable_schemes) { standard_schemes->push_back(extensions::kExtensionScheme); savable_schemes->push_back(extensions::kExtensionScheme); standard_schemes->push_back(chrome::kChromeNativeScheme); standard_schemes->push_back(extensions::kExtensionResourceScheme); savable_schemes->push_back(extensions::kExtensionResourceScheme); standard_schemes->push_back(chrome::kChromeSearchScheme); savable_schemes->push_back(chrome::kChromeSearchScheme); standard_schemes->push_back(dom_distiller::kDomDistillerScheme); savable_schemes->push_back(dom_distiller::kDomDistillerScheme); #if defined(OS_CHROMEOS) standard_schemes->push_back(chrome::kCrosScheme); #endif } std::string ChromeContentClient::GetProduct() const { return ::GetProduct(); } std::string ChromeContentClient::GetUserAgent() const { return ::GetUserAgent(); } base::string16 ChromeContentClient::GetLocalizedString(int message_id) const { return l10n_util::GetStringUTF16(message_id); } base::StringPiece ChromeContentClient::GetDataResource( int resource_id, ui::ScaleFactor scale_factor) const { return ResourceBundle::GetSharedInstance().GetRawDataResourceForScale( resource_id, scale_factor); } base::RefCountedStaticMemory* ChromeContentClient::GetDataResourceBytes( int resource_id) const { return ResourceBundle::GetSharedInstance().LoadDataResourceBytes(resource_id); } gfx::Image& ChromeContentClient::GetNativeImageNamed(int resource_id) const { return ResourceBundle::GetSharedInstance().GetNativeImageNamed(resource_id); } std::string ChromeContentClient::GetProcessTypeNameInEnglish(int type) { #if !defined(DISABLE_NACL) switch (type) { case PROCESS_TYPE_NACL_LOADER: return "Native Client module"; case PROCESS_TYPE_NACL_BROKER: return "Native Client broker"; } #endif NOTREACHED() << "Unknown child process type!"; return "Unknown"; } #if defined(OS_MACOSX) && !defined(OS_IOS) bool ChromeContentClient::GetSandboxProfileForSandboxType( int sandbox_type, int* sandbox_profile_resource_id) const { DCHECK(sandbox_profile_resource_id); #if !defined(DISABLE_NACL) if (sandbox_type == NACL_SANDBOX_TYPE_NACL_LOADER) { *sandbox_profile_resource_id = IDR_NACL_SANDBOX_PROFILE; return true; } #endif return false; } #endif void ChromeContentClient::AddSecureSchemesAndOrigins( std::set* schemes, std::set* origins) { schemes->insert(chrome::kChromeSearchScheme); schemes->insert(content::kChromeUIScheme); schemes->insert(extensions::kExtensionScheme); schemes->insert(extensions::kExtensionResourceScheme); GetSecureOriginWhitelist(origins); } void ChromeContentClient::AddServiceWorkerSchemes( std::set* schemes) { schemes->insert(extensions::kExtensionScheme); }