// Copyright 2015 The Chromium Embedded Framework Authors. // Portions copyright 2014 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 "libcef/common/content_client.h" #include #include "include/cef_stream.h" #include "include/cef_version.h" #include "libcef/browser/content_browser_client.h" #include "libcef/browser/extensions/pdf_extension_util.h" #include "libcef/common/cef_switches.h" #include "libcef/common/extensions/extensions_util.h" #include "libcef/common/net/scheme_registration.h" #include "libcef/common/scheme_registrar_impl.h" #include "base/command_line.h" #include "base/files/file_util.h" #include "base/json/json_reader.h" #include "base/logging.h" #include "base/path_service.h" #include "base/strings/string_piece.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 "chrome/common/chrome_constants.h" #include "chrome/common/chrome_paths.h" #include "chrome/common/chrome_switches.h" #include "chrome/common/pepper_flash.h" #include "content/public/common/content_constants.h" #include "content/public/common/content_switches.h" #include "content/public/common/pepper_plugin_info.h" #include "content/public/common/user_agent.h" #include "ppapi/shared_impl/ppapi_permissions.h" #include "ui/base/resource/resource_bundle.h" #if defined(OS_LINUX) #include "libcef/common/widevine_loader.h" #endif namespace { CefContentClient* g_content_client = NULL; // The following plugin-related methods are from // chrome/common/chrome_content_client.cc const char kPDFPluginExtension[] = "pdf"; const char kPDFPluginDescription[] = "Portable Document Format"; const char kPDFPluginOutOfProcessMimeType[] = "application/x-google-chrome-pdf"; const uint32_t 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; // 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) { if (extensions::PdfExtensionEnabled()) { content::PepperPluginInfo pdf_info; pdf_info.is_internal = true; pdf_info.is_out_of_process = true; pdf_info.name = extensions::pdf_extension_util::kPdfPluginName; pdf_info.description = kPDFPluginDescription; pdf_info.path = base::FilePath::FromUTF8Unsafe(CefContentClient::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); } } 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)); } bool GetSystemPepperFlash(content::PepperPluginInfo* plugin) { base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); if (!command_line->HasSwitch(switches::kEnableSystemFlash)) return false; // 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; } base::FilePath manifest_path( flash_filename.DirName().AppendASCII("manifest.json")); std::string manifest_data; if (!base::ReadFileToString(manifest_path, &manifest_data)) return false; std::unique_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; base::Version version; if (!chrome::CheckPepperFlashManifest(*manifest, &version)) return false; *plugin = CreatePepperFlashInfo(flash_filename, version.GetString()); return true; } } // namespace const char CefContentClient::kPDFPluginPath[] = "internal-pdf-viewer"; CefContentClient::CefContentClient(CefRefPtr application) : application_(application), pack_loading_disabled_(false), allow_pack_file_load_(false), scheme_info_list_locked_(false) { DCHECK(!g_content_client); g_content_client = this; } CefContentClient::~CefContentClient() { g_content_client = NULL; } // static CefContentClient* CefContentClient::Get() { return g_content_client; } void CefContentClient::AddPepperPlugins( std::vector* plugins) { ComputeBuiltInPlugins(plugins); AddPepperFlashFromCommandLine(plugins); #if defined(OS_LINUX) #if defined(WIDEVINE_CDM_AVAILABLE) && BUILDFLAG(ENABLE_PEPPER_CDMS) CefWidevineLoader::AddPepperPlugins(plugins); #endif #endif content::PepperPluginInfo plugin; if (GetSystemPepperFlash(&plugin)) plugins->push_back(plugin); } void CefContentClient::AddAdditionalSchemes(Schemes* schemes) { DCHECK(!scheme_info_list_locked_); if (application_.get()) { CefSchemeRegistrarImpl schemeRegistrar; application_->OnRegisterCustomSchemes(&schemeRegistrar); schemeRegistrar.GetSchemes(schemes); } scheme::AddInternalSchemes(schemes); scheme_info_list_locked_ = true; } std::string CefContentClient::GetUserAgent() const { std::string product_version; const base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); if (command_line->HasSwitch(switches::kUserAgent)) return command_line->GetSwitchValueASCII(switches::kUserAgent); if (command_line->HasSwitch(switches::kProductVersion)) { product_version = command_line->GetSwitchValueASCII(switches::kProductVersion); } else { product_version = base::StringPrintf( "Chrome/%d.%d.%d.%d", CHROME_VERSION_MAJOR, CHROME_VERSION_MINOR, CHROME_VERSION_BUILD, CHROME_VERSION_PATCH); } return content::BuildUserAgentFromProduct(product_version); } base::string16 CefContentClient::GetLocalizedString(int message_id) const { base::string16 value = ResourceBundle::GetSharedInstance().GetLocalizedString(message_id); if (value.empty()) LOG(ERROR) << "No localized string available for id " << message_id; return value; } base::StringPiece CefContentClient::GetDataResource( int resource_id, ui::ScaleFactor scale_factor) const { base::StringPiece value = ResourceBundle::GetSharedInstance().GetRawDataResourceForScale( resource_id, scale_factor); if (value.empty()) LOG(ERROR) << "No data resource available for id " << resource_id; return value; } base::RefCountedMemory* CefContentClient::GetDataResourceBytes( int resource_id) const { base::RefCountedMemory* value = ResourceBundle::GetSharedInstance().LoadDataResourceBytes(resource_id); if (!value) LOG(ERROR) << "No data resource bytes available for id " << resource_id; return value; } gfx::Image& CefContentClient::GetNativeImageNamed(int resource_id) const { gfx::Image& value = ResourceBundle::GetSharedInstance().GetNativeImageNamed(resource_id); if (value.IsEmpty()) LOG(ERROR) << "No native image available for id " << resource_id; return value; } void CefContentClient::AddCustomScheme(const SchemeInfo& scheme_info) { DCHECK(!scheme_info_list_locked_); scheme_info_list_.push_back(scheme_info); if (CefContentBrowserClient::Get()) { CefContentBrowserClient::Get()->RegisterCustomScheme( scheme_info.scheme_name); } } const CefContentClient::SchemeInfoList* CefContentClient::GetCustomSchemes() { DCHECK(scheme_info_list_locked_); return &scheme_info_list_; } bool CefContentClient::HasCustomScheme(const std::string& scheme_name) { DCHECK(scheme_info_list_locked_); if (scheme_info_list_.empty()) return false; SchemeInfoList::const_iterator it = scheme_info_list_.begin(); for (; it != scheme_info_list_.end(); ++it) { if (it->scheme_name == scheme_name) return true; } return false; } // static void CefContentClient::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; } base::FilePath CefContentClient::GetPathForResourcePack( const base::FilePath& pack_path, ui::ScaleFactor scale_factor) { // Only allow the cef pack file to load. if (!pack_loading_disabled_ && allow_pack_file_load_) return pack_path; return base::FilePath(); } base::FilePath CefContentClient::GetPathForLocalePack( const base::FilePath& pack_path, const std::string& locale) { if (!pack_loading_disabled_) return pack_path; return base::FilePath(); } gfx::Image CefContentClient::GetImageNamed(int resource_id) { return gfx::Image(); } gfx::Image CefContentClient::GetNativeImageNamed(int resource_id) { return gfx::Image(); } base::RefCountedStaticMemory* CefContentClient::LoadDataResourceBytes( int resource_id, ui::ScaleFactor scale_factor) { return NULL; } bool CefContentClient::GetRawDataResource(int resource_id, ui::ScaleFactor scale_factor, base::StringPiece* value) { if (application_.get()) { CefRefPtr handler = application_->GetResourceBundleHandler(); if (handler.get()) { void* data = NULL; size_t data_size = 0; if (scale_factor != ui::SCALE_FACTOR_NONE) { if (handler->GetDataResourceForScale( resource_id, static_cast(scale_factor), data, data_size)) { *value = base::StringPiece(static_cast(data), data_size); } } else if (handler->GetDataResource(resource_id, data, data_size)) { *value = base::StringPiece(static_cast(data), data_size); } } } return (pack_loading_disabled_ || !value->empty()); } bool CefContentClient::GetLocalizedString(int message_id, base::string16* value) { if (application_.get()) { CefRefPtr handler = application_->GetResourceBundleHandler(); if (handler.get()) { CefString cef_str; if (handler->GetLocalizedString(message_id, cef_str)) *value = cef_str; } } return (pack_loading_disabled_ || !value->empty()); }