| // 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/browser/extensions/component_loader.h" |
| |
| #include <map> |
| #include <string> |
| |
| #include "base/command_line.h" |
| #include "base/file_util.h" |
| #include "base/json/json_string_value_serializer.h" |
| #include "base/metrics/field_trial.h" |
| #include "base/path_service.h" |
| #include "base/prefs/pref_change_registrar.h" |
| #include "chrome/browser/chrome_notification_types.h" |
| #include "chrome/browser/extensions/extension_service.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/common/chrome_paths.h" |
| #include "chrome/common/chrome_switches.h" |
| #include "chrome/common/chrome_version_info.h" |
| #include "chrome/common/extensions/extension_file_util.h" |
| #include "chrome/common/pref_names.h" |
| #include "content/public/browser/notification_details.h" |
| #include "content/public/browser/notification_source.h" |
| #include "extensions/common/extension.h" |
| #include "extensions/common/id_util.h" |
| #include "extensions/common/manifest_constants.h" |
| #include "grit/browser_resources.h" |
| #include "grit/generated_resources.h" |
| #include "ui/base/l10n/l10n_util.h" |
| #include "ui/base/resource/resource_bundle.h" |
| |
| #if defined(USE_AURA) |
| #include "grit/keyboard_resources.h" |
| #include "ui/keyboard/keyboard_util.h" |
| #endif |
| |
| #if defined(GOOGLE_CHROME_BUILD) |
| #include "chrome/browser/defaults.h" |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| #include "chrome/browser/chromeos/accessibility/accessibility_manager.h" |
| #include "chrome/browser/chromeos/login/user_manager.h" |
| #include "chrome/browser/extensions/extension_service.h" |
| #include "chrome/browser/extensions/extension_system.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/profiles/profile_manager.h" |
| #include "chromeos/chromeos_switches.h" |
| #include "content/public/browser/storage_partition.h" |
| #include "webkit/browser/fileapi/file_system_context.h" |
| #endif |
| |
| #if defined(ENABLE_APP_LIST) |
| #include "grit/chromium_strings.h" |
| #endif |
| |
| namespace extensions { |
| |
| namespace { |
| |
| static bool enable_background_extensions_during_testing = false; |
| |
| std::string LookupWebstoreName() { |
| const char kWebStoreNameFieldTrialName[] = "WebStoreName"; |
| const char kStoreControl[] = "StoreControl"; |
| const char kWebStore[] = "WebStore"; |
| const char kGetApps[] = "GetApps"; |
| const char kAddApps[] = "AddApps"; |
| const char kMoreApps[] = "MoreApps"; |
| |
| typedef std::map<std::string, int> NameMap; |
| CR_DEFINE_STATIC_LOCAL(NameMap, names, ()); |
| if (names.empty()) { |
| names.insert(std::make_pair(kStoreControl, IDS_WEBSTORE_NAME_STORE)); |
| names.insert(std::make_pair(kWebStore, IDS_WEBSTORE_NAME_WEBSTORE)); |
| names.insert(std::make_pair(kGetApps, IDS_WEBSTORE_NAME_GET_APPS)); |
| names.insert(std::make_pair(kAddApps, IDS_WEBSTORE_NAME_ADD_APPS)); |
| names.insert(std::make_pair(kMoreApps, IDS_WEBSTORE_NAME_MORE_APPS)); |
| } |
| std::string field_trial_name = |
| base::FieldTrialList::FindFullName(kWebStoreNameFieldTrialName); |
| NameMap::iterator it = names.find(field_trial_name); |
| int string_id = it == names.end() ? names[kStoreControl] : it->second; |
| return l10n_util::GetStringUTF8(string_id); |
| } |
| |
| std::string GenerateId(const base::DictionaryValue* manifest, |
| const base::FilePath& path) { |
| std::string raw_key; |
| std::string id_input; |
| CHECK(manifest->GetString(manifest_keys::kPublicKey, &raw_key)); |
| CHECK(Extension::ParsePEMKeyBytes(raw_key, &id_input)); |
| std::string id = id_util::GenerateId(id_input); |
| return id; |
| } |
| |
| } // namespace |
| |
| ComponentLoader::ComponentExtensionInfo::ComponentExtensionInfo( |
| const base::DictionaryValue* manifest, const base::FilePath& directory) |
| : manifest(manifest), |
| root_directory(directory) { |
| if (!root_directory.IsAbsolute()) { |
| CHECK(PathService::Get(chrome::DIR_RESOURCES, &root_directory)); |
| root_directory = root_directory.Append(directory); |
| } |
| extension_id = GenerateId(manifest, root_directory); |
| } |
| |
| ComponentLoader::ComponentLoader(ExtensionServiceInterface* extension_service, |
| PrefService* profile_prefs, |
| PrefService* local_state) |
| : profile_prefs_(profile_prefs), |
| local_state_(local_state), |
| extension_service_(extension_service) {} |
| |
| ComponentLoader::~ComponentLoader() { |
| ClearAllRegistered(); |
| } |
| |
| void ComponentLoader::LoadAll() { |
| for (RegisteredComponentExtensions::iterator it = |
| component_extensions_.begin(); |
| it != component_extensions_.end(); ++it) { |
| Load(*it); |
| } |
| } |
| |
| base::DictionaryValue* ComponentLoader::ParseManifest( |
| const std::string& manifest_contents) const { |
| JSONStringValueSerializer serializer(manifest_contents); |
| scoped_ptr<base::Value> manifest(serializer.Deserialize(NULL, NULL)); |
| |
| if (!manifest.get() || !manifest->IsType(base::Value::TYPE_DICTIONARY)) { |
| LOG(ERROR) << "Failed to parse extension manifest."; |
| return NULL; |
| } |
| // Transfer ownership to the caller. |
| return static_cast<base::DictionaryValue*>(manifest.release()); |
| } |
| |
| void ComponentLoader::ClearAllRegistered() { |
| for (RegisteredComponentExtensions::iterator it = |
| component_extensions_.begin(); |
| it != component_extensions_.end(); ++it) { |
| delete it->manifest; |
| } |
| |
| component_extensions_.clear(); |
| } |
| |
| std::string ComponentLoader::GetExtensionID( |
| int manifest_resource_id, |
| const base::FilePath& root_directory) { |
| std::string manifest_contents = ResourceBundle::GetSharedInstance(). |
| GetRawDataResource(manifest_resource_id).as_string(); |
| base::DictionaryValue* manifest = ParseManifest(manifest_contents); |
| if (!manifest) |
| return std::string(); |
| |
| ComponentExtensionInfo info(manifest, root_directory); |
| return info.extension_id; |
| } |
| |
| std::string ComponentLoader::Add(int manifest_resource_id, |
| const base::FilePath& root_directory) { |
| std::string manifest_contents = |
| ResourceBundle::GetSharedInstance().GetRawDataResource( |
| manifest_resource_id).as_string(); |
| return Add(manifest_contents, root_directory); |
| } |
| |
| std::string ComponentLoader::Add(const std::string& manifest_contents, |
| const base::FilePath& root_directory) { |
| // The Value is kept for the lifetime of the ComponentLoader. This is |
| // required in case LoadAll() is called again. |
| base::DictionaryValue* manifest = ParseManifest(manifest_contents); |
| if (manifest) |
| return Add(manifest, root_directory); |
| return std::string(); |
| } |
| |
| std::string ComponentLoader::Add(const base::DictionaryValue* parsed_manifest, |
| const base::FilePath& root_directory) { |
| ComponentExtensionInfo info(parsed_manifest, root_directory); |
| component_extensions_.push_back(info); |
| if (extension_service_->is_ready()) |
| Load(info); |
| return info.extension_id; |
| } |
| |
| std::string ComponentLoader::AddOrReplace(const base::FilePath& path) { |
| base::FilePath absolute_path = base::MakeAbsoluteFilePath(path); |
| std::string error; |
| scoped_ptr<base::DictionaryValue> manifest( |
| extension_file_util::LoadManifest(absolute_path, &error)); |
| if (!manifest) { |
| LOG(ERROR) << "Could not load extension from '" << |
| absolute_path.value() << "'. " << error; |
| return std::string(); |
| } |
| Remove(GenerateId(manifest.get(), absolute_path)); |
| |
| return Add(manifest.release(), absolute_path); |
| } |
| |
| void ComponentLoader::Reload(const std::string& extension_id) { |
| for (RegisteredComponentExtensions::iterator it = |
| component_extensions_.begin(); it != component_extensions_.end(); |
| ++it) { |
| if (it->extension_id == extension_id) { |
| Load(*it); |
| break; |
| } |
| } |
| } |
| |
| void ComponentLoader::Load(const ComponentExtensionInfo& info) { |
| // TODO(abarth): We should REQUIRE_MODERN_MANIFEST_VERSION once we've updated |
| // our component extensions to the new manifest version. |
| int flags = Extension::REQUIRE_KEY; |
| |
| std::string error; |
| |
| scoped_refptr<const Extension> extension(Extension::Create( |
| info.root_directory, |
| Manifest::COMPONENT, |
| *info.manifest, |
| flags, |
| &error)); |
| if (!extension.get()) { |
| LOG(ERROR) << error; |
| return; |
| } |
| |
| CHECK_EQ(info.extension_id, extension->id()) << extension->name(); |
| extension_service_->AddComponentExtension(extension.get()); |
| } |
| |
| void ComponentLoader::Remove(const base::FilePath& root_directory) { |
| // Find the ComponentExtensionInfo for the extension. |
| RegisteredComponentExtensions::iterator it = component_extensions_.begin(); |
| for (; it != component_extensions_.end(); ++it) { |
| if (it->root_directory == root_directory) { |
| Remove(GenerateId(it->manifest, root_directory)); |
| break; |
| } |
| } |
| } |
| |
| void ComponentLoader::Remove(const std::string& id) { |
| RegisteredComponentExtensions::iterator it = component_extensions_.begin(); |
| for (; it != component_extensions_.end(); ++it) { |
| if (it->extension_id == id) { |
| UnloadComponent(&(*it)); |
| it = component_extensions_.erase(it); |
| break; |
| } |
| } |
| } |
| |
| bool ComponentLoader::Exists(const std::string& id) const { |
| RegisteredComponentExtensions::const_iterator it = |
| component_extensions_.begin(); |
| for (; it != component_extensions_.end(); ++it) |
| if (it->extension_id == id) |
| return true; |
| return false; |
| } |
| |
| void ComponentLoader::AddFileManagerExtension() { |
| #if defined(FILE_MANAGER_EXTENSION) |
| #ifndef NDEBUG |
| const CommandLine* command_line = CommandLine::ForCurrentProcess(); |
| if (command_line->HasSwitch(switches::kFileManagerExtensionPath)) { |
| base::FilePath filemgr_extension_path( |
| command_line->GetSwitchValuePath(switches::kFileManagerExtensionPath)); |
| Add(IDR_FILEMANAGER_MANIFEST, filemgr_extension_path); |
| return; |
| } |
| #endif // NDEBUG |
| Add(IDR_FILEMANAGER_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("file_manager"))); |
| #endif // defined(FILE_MANAGER_EXTENSION) |
| } |
| |
| void ComponentLoader::AddHangoutServicesExtension() { |
| Add(IDR_HANGOUT_SERVICES_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("hangout_services"))); |
| } |
| |
| void ComponentLoader::AddImageLoaderExtension() { |
| #if defined(IMAGE_LOADER_EXTENSION) |
| #ifndef NDEBUG |
| const CommandLine* command_line = CommandLine::ForCurrentProcess(); |
| if (command_line->HasSwitch(switches::kImageLoaderExtensionPath)) { |
| base::FilePath image_loader_extension_path( |
| command_line->GetSwitchValuePath(switches::kImageLoaderExtensionPath)); |
| Add(IDR_IMAGE_LOADER_MANIFEST, image_loader_extension_path); |
| return; |
| } |
| #endif // NDEBUG |
| Add(IDR_IMAGE_LOADER_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("image_loader"))); |
| #endif // defined(IMAGE_LOADER_EXTENSION) |
| } |
| |
| void ComponentLoader::AddBookmarksExtensions() { |
| Add(IDR_BOOKMARKS_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("bookmark_manager"))); |
| #if defined(ENABLE_ENHANCED_BOOKMARKS) |
| Add(IDR_ENHANCED_BOOKMARKS_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("enhanced_bookmark_manager"))); |
| #endif |
| } |
| |
| void ComponentLoader::AddNetworkSpeechSynthesisExtension() { |
| Add(IDR_NETWORK_SPEECH_SYNTHESIS_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("network_speech_synthesis"))); |
| } |
| |
| void ComponentLoader::AddWithName(int manifest_resource_id, |
| const base::FilePath& root_directory, |
| const std::string& name) { |
| std::string manifest_contents = |
| ResourceBundle::GetSharedInstance().GetRawDataResource( |
| manifest_resource_id).as_string(); |
| |
| // The Value is kept for the lifetime of the ComponentLoader. This is |
| // required in case LoadAll() is called again. |
| base::DictionaryValue* manifest = ParseManifest(manifest_contents); |
| |
| if (manifest) { |
| // Update manifest to use a proper name. |
| manifest->SetString(manifest_keys::kName, name); |
| Add(manifest, root_directory); |
| } |
| } |
| |
| void ComponentLoader::AddChromeApp() { |
| #if defined(ENABLE_APP_LIST) |
| AddWithName(IDR_CHROME_APP_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("chrome_app")), |
| l10n_util::GetStringUTF8(IDS_SHORT_PRODUCT_NAME)); |
| #endif |
| } |
| |
| void ComponentLoader::AddKeyboardApp() { |
| #if defined(USE_AURA) |
| if (keyboard::IsKeyboardEnabled()) |
| Add(IDR_KEYBOARD_MANIFEST, base::FilePath(FILE_PATH_LITERAL("keyboard"))); |
| #endif |
| } |
| |
| void ComponentLoader::AddWebStoreApp() { |
| AddWithName(IDR_WEBSTORE_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("web_store")), |
| LookupWebstoreName()); |
| } |
| |
| // static |
| void ComponentLoader::EnableBackgroundExtensionsForTesting() { |
| enable_background_extensions_during_testing = true; |
| } |
| |
| void ComponentLoader::AddDefaultComponentExtensions( |
| bool skip_session_components) { |
| // Do not add component extensions that have background pages here -- add them |
| // to AddDefaultComponentExtensionsWithBackgroundPages. |
| #if defined(OS_CHROMEOS) |
| Add(IDR_MOBILE_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("/usr/share/chromeos-assets/mobile"))); |
| |
| #if defined(GOOGLE_CHROME_BUILD) |
| if (browser_defaults::enable_help_app) { |
| Add(IDR_HELP_MANIFEST, base::FilePath(FILE_PATH_LITERAL( |
| "/usr/share/chromeos-assets/helpapp"))); |
| } |
| #endif |
| |
| // Skip all other extensions that require user session presence. |
| if (!skip_session_components) { |
| const CommandLine* command_line = CommandLine::ForCurrentProcess(); |
| if (!command_line->HasSwitch(chromeos::switches::kGuestSession)) |
| AddBookmarksExtensions(); |
| |
| Add(IDR_CROSH_BUILTIN_MANIFEST, base::FilePath(FILE_PATH_LITERAL( |
| "/usr/share/chromeos-assets/crosh_builtin"))); |
| } |
| #else // !defined(OS_CHROMEOS) |
| DCHECK(!skip_session_components); |
| AddBookmarksExtensions(); |
| // Cloud Print component app. Not required on Chrome OS. |
| Add(IDR_CLOUDPRINT_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("cloud_print"))); |
| #endif |
| |
| if (!skip_session_components) { |
| AddWebStoreApp(); |
| AddChromeApp(); |
| } |
| |
| AddKeyboardApp(); |
| |
| AddDefaultComponentExtensionsWithBackgroundPages(skip_session_components); |
| } |
| |
| void ComponentLoader::AddDefaultComponentExtensionsWithBackgroundPages( |
| bool skip_session_components) { |
| const CommandLine* command_line = CommandLine::ForCurrentProcess(); |
| |
| // Component extensions with background pages are not enabled during tests |
| // because they generate a lot of background behavior that can interfere. |
| if (!enable_background_extensions_during_testing && |
| (command_line->HasSwitch(switches::kTestType) || |
| command_line->HasSwitch( |
| switches::kDisableComponentExtensionsWithBackgroundPages))) { |
| return; |
| } |
| |
| #if defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD) |
| // Since this is a v2 app it has a background page. |
| if (!command_line->HasSwitch(chromeos::switches::kDisableGeniusApp)) { |
| AddWithName(IDR_GENIUS_APP_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL( |
| "/usr/share/chromeos-assets/genius_app")), |
| l10n_util::GetStringUTF8(IDS_GENIUS_APP_NAME)); |
| } |
| #endif |
| |
| if (!skip_session_components) { |
| // Apps Debugger |
| if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAppsDevtool) && |
| profile_prefs_->GetBoolean(prefs::kExtensionsUIDeveloperMode)) { |
| Add(IDR_APPS_DEBUGGER_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("apps_debugger"))); |
| } |
| |
| |
| AddFileManagerExtension(); |
| AddHangoutServicesExtension(); |
| AddImageLoaderExtension(); |
| |
| #if defined(ENABLE_SETTINGS_APP) |
| Add(IDR_SETTINGS_APP_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("settings_app"))); |
| #endif |
| } |
| |
| // If (!enable_background_extensions_during_testing || this isn't a test) |
| // install_feedback = false; |
| bool install_feedback = enable_background_extensions_during_testing; |
| #if defined(GOOGLE_CHROME_BUILD) |
| install_feedback = true; |
| #endif // defined(GOOGLE_CHROME_BUILD) |
| if (install_feedback) |
| Add(IDR_FEEDBACK_MANIFEST, base::FilePath(FILE_PATH_LITERAL("feedback"))); |
| |
| #if defined(OS_CHROMEOS) |
| if (!skip_session_components) { |
| #if defined(GOOGLE_CHROME_BUILD) |
| if (!command_line->HasSwitch( |
| chromeos::switches::kDisableQuickofficeComponentApp)) { |
| int manifest_id = IDR_QUICKOFFICE_EDITOR_MANIFEST; |
| if (command_line->HasSwitch(switches::kEnableQuickofficeViewing)) { |
| manifest_id = IDR_QUICKOFFICE_VIEWING_MANIFEST; |
| } |
| std::string id = Add(manifest_id, base::FilePath( |
| FILE_PATH_LITERAL("/usr/share/chromeos-assets/quick_office"))); |
| if (command_line->HasSwitch(chromeos::switches::kGuestSession)) { |
| // TODO(dpolukhin): Hack to enable HTML5 temporary file system for |
| // Quickoffice. It doesn't work without temporary file system access. |
| Profile* profile = ProfileManager::GetDefaultProfileOrOffTheRecord(); |
| ExtensionService* service = |
| extensions::ExtensionSystem::Get(profile)->extension_service(); |
| GURL site = service->GetSiteForExtensionId(id); |
| fileapi::FileSystemContext* context = |
| content::BrowserContext::GetStoragePartitionForSite(profile, site)-> |
| GetFileSystemContext(); |
| context->EnableTemporaryFileSystemInIncognito(); |
| } |
| } |
| #endif // defined(GOOGLE_CHROME_BUILD) |
| |
| base::FilePath echo_extension_path(FILE_PATH_LITERAL( |
| "/usr/share/chromeos-assets/echo")); |
| if (command_line->HasSwitch(chromeos::switches::kEchoExtensionPath)) { |
| echo_extension_path = command_line->GetSwitchValuePath( |
| chromeos::switches::kEchoExtensionPath); |
| } |
| Add(IDR_ECHO_MANIFEST, echo_extension_path); |
| |
| if (!command_line->HasSwitch(chromeos::switches::kGuestSession)) { |
| Add(IDR_WALLPAPERMANAGER_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("chromeos/wallpaper_manager"))); |
| } |
| |
| Add(IDR_NETWORK_CONFIGURATION_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("chromeos/network_configuration"))); |
| |
| Add(IDR_CONNECTIVITY_DIAGNOSTICS_MANIFEST, |
| base::FilePath(extension_misc::kConnectivityDiagnosticsPath)); |
| Add(IDR_CONNECTIVITY_DIAGNOSTICS_LAUNCHER_MANIFEST, |
| base::FilePath(extension_misc::kConnectivityDiagnosticsLauncherPath)); |
| } |
| |
| // Load ChromeVox extension now if spoken feedback is enabled. |
| if (chromeos::AccessibilityManager::Get() && |
| chromeos::AccessibilityManager::Get()->IsSpokenFeedbackEnabled()) { |
| base::FilePath path = |
| base::FilePath(extension_misc::kChromeVoxExtensionPath); |
| Add(IDR_CHROMEVOX_MANIFEST, path); |
| } |
| #endif // defined(OS_CHROMEOS) |
| |
| #if defined(ENABLE_GOOGLE_NOW) |
| const char kEnablePrefix[] = "Enable"; |
| const char kFieldTrialName[] = "GoogleNow"; |
| std::string enable_prefix(kEnablePrefix); |
| std::string field_trial_result = |
| base::FieldTrialList::FindFullName(kFieldTrialName); |
| |
| bool enabled_via_field_trial = field_trial_result.compare( |
| 0, |
| enable_prefix.length(), |
| enable_prefix) == 0; |
| |
| // Enable the feature on trybots. |
| bool enabled_via_trunk_build = chrome::VersionInfo::GetChannel() == |
| chrome::VersionInfo::CHANNEL_UNKNOWN; |
| |
| bool enabled_via_flag = |
| chrome::VersionInfo::GetChannel() != |
| chrome::VersionInfo::CHANNEL_STABLE && |
| CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kEnableGoogleNowIntegration); |
| |
| bool enabled = |
| enabled_via_field_trial || enabled_via_trunk_build || enabled_via_flag; |
| |
| bool disabled_via_flag = |
| CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kDisableGoogleNowIntegration); |
| |
| if (!skip_session_components && enabled && !disabled_via_flag) { |
| Add(IDR_GOOGLE_NOW_MANIFEST, |
| base::FilePath(FILE_PATH_LITERAL("google_now"))); |
| } |
| #endif |
| |
| #if defined(GOOGLE_CHROME_BUILD) |
| #if !defined(OS_CHROMEOS) // http://crbug.com/314799 |
| AddNetworkSpeechSynthesisExtension(); |
| #endif |
| #endif // defined(GOOGLE_CHROME_BUILD) |
| } |
| |
| void ComponentLoader::UnloadComponent(ComponentExtensionInfo* component) { |
| delete component->manifest; |
| if (extension_service_->is_ready()) { |
| extension_service_-> |
| RemoveComponentExtension(component->extension_id); |
| } |
| } |
| |
| } // namespace extensions |