chrome/browser/extensions/chrome_extensions_browser_client.cc

   1 // Copyright 2013 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 "chrome/browser/extensions/chrome_extensions_browser_client.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/version.h"
   9 #include "chrome/browser/app_mode/app_mode_utils.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/extensions/activity_log/activity_log.h"
  12 #include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
  13 #include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
  14 #include "chrome/browser/extensions/api/generated_api_registration.h"
  15 #include "chrome/browser/extensions/api/preference/chrome_direct_setting.h"
  16 #include "chrome/browser/extensions/api/preference/preference_api.h"
  17 #include "chrome/browser/extensions/api/runtime/chrome_runtime_api_delegate.h"
  18 #include "chrome/browser/extensions/chrome_app_sorting.h"
  19 #include "chrome/browser/extensions/chrome_component_extension_resource_manager.h"
  20 #include "chrome/browser/extensions/chrome_extension_host_delegate.h"
  21 #include "chrome/browser/extensions/chrome_process_manager_delegate.h"
  22 #include "chrome/browser/extensions/chrome_url_request_util.h"
  23 #include "chrome/browser/extensions/event_router_forwarder.h"
  24 #include "chrome/browser/extensions/extension_system_factory.h"
  25 #include "chrome/browser/extensions/extension_util.h"
  26 #include "chrome/browser/external_protocol/external_protocol_handler.h"
  27 #include "chrome/browser/net/chrome_net_log.h"
  28 #include "chrome/browser/profiles/profile.h"
  29 #include "chrome/browser/profiles/profile_manager.h"
  30 #include "chrome/common/chrome_paths.h"
  31 #include "chrome/common/chrome_switches.h"
  32 #include "chrome/common/chrome_version_info.h"
  33 #include "chrome/common/extensions/features/feature_channel.h"
  34 #include "chrome/common/pref_names.h"
  35 #include "extensions/browser/api/generated_api_registration.h"
  36 #include "extensions/browser/extension_function_registry.h"
  37 #include "extensions/browser/extension_prefs.h"
  38 #include "extensions/browser/pref_names.h"
  39 #include "extensions/browser/url_request_util.h"
  40
  41 #if defined(OS_CHROMEOS)
  42 #include "chrome/browser/chromeos/profiles/profile_helper.h"
  43 #include "chrome/browser/extensions/updater/extension_cache_impl.h"
  44 #include "chromeos/chromeos_switches.h"
  45 #else
  46 #include "extensions/browser/updater/null_extension_cache.h"
  47 #endif
  48
  49 namespace extensions {
  50
  51 ChromeExtensionsBrowserClient::ChromeExtensionsBrowserClient() {
  52   process_manager_delegate_.reset(new ChromeProcessManagerDelegate);
  53   api_client_.reset(new ChromeExtensionsAPIClient);
  54   // Only set if it hasn't already been set (e.g. by a test).
  55   if (GetCurrentChannel() == GetDefaultChannel())
  56     SetCurrentChannel(chrome::VersionInfo::GetChannel());
  57   resource_manager_.reset(new ChromeComponentExtensionResourceManager());
  58 }
  59
  60 ChromeExtensionsBrowserClient::~ChromeExtensionsBrowserClient() {}
  61
  62 bool ChromeExtensionsBrowserClient::IsShuttingDown() {
  63   return g_browser_process->IsShuttingDown();
  64 }
  65
  66 bool ChromeExtensionsBrowserClient::AreExtensionsDisabled(
  67     const base::CommandLine& command_line,
  68     content::BrowserContext* context) {
  69   Profile* profile = static_cast<Profile*>(context);
  70   return command_line.HasSwitch(switches::kDisableExtensions) ||
  71       profile->GetPrefs()->GetBoolean(prefs::kDisableExtensions);
  72 }
  73
  74 bool ChromeExtensionsBrowserClient::IsValidContext(
  75     content::BrowserContext* context) {
  76   Profile* profile = static_cast<Profile*>(context);
  77   return g_browser_process->profile_manager() &&
  78          g_browser_process->profile_manager()->IsValidProfile(profile);
  79 }
  80
  81 bool ChromeExtensionsBrowserClient::IsSameContext(
  82     content::BrowserContext* first,
  83     content::BrowserContext* second) {
  84   return static_cast<Profile*>(first)->IsSameProfile(
  85       static_cast<Profile*>(second));
  86 }
  87
  88 bool ChromeExtensionsBrowserClient::HasOffTheRecordContext(
  89     content::BrowserContext* context) {
  90   return static_cast<Profile*>(context)->HasOffTheRecordProfile();
  91 }
  92
  93 content::BrowserContext* ChromeExtensionsBrowserClient::GetOffTheRecordContext(
  94     content::BrowserContext* context) {
  95   return static_cast<Profile*>(context)->GetOffTheRecordProfile();
  96 }
  97
  98 content::BrowserContext* ChromeExtensionsBrowserClient::GetOriginalContext(
  99     content::BrowserContext* context) {
 100   return static_cast<Profile*>(context)->GetOriginalProfile();
 101 }
 102
 103 #if defined(OS_CHROMEOS)
 104 std::string ChromeExtensionsBrowserClient::GetUserIdHashFromContext(
 105     content::BrowserContext* context) {
 106   return chromeos::ProfileHelper::GetUserIdHashFromProfile(
 107       static_cast<Profile*>(context));
 108 }
 109 #endif
 110
 111 bool ChromeExtensionsBrowserClient::IsGuestSession(
 112     content::BrowserContext* context) const {
 113   return static_cast<Profile*>(context)->IsGuestSession();
 114 }
 115
 116 bool ChromeExtensionsBrowserClient::IsExtensionIncognitoEnabled(
 117     const std::string& extension_id,
 118     content::BrowserContext* context) const {
 119   return IsGuestSession(context)
 120       || util::IsIncognitoEnabled(extension_id, context);
 121 }
 122
 123 bool ChromeExtensionsBrowserClient::CanExtensionCrossIncognito(
 124     const extensions::Extension* extension,
 125     content::BrowserContext* context) const {
 126   return IsGuestSession(context)
 127       || util::CanCrossIncognito(extension, context);
 128 }
 129
 130 net::URLRequestJob*
 131 ChromeExtensionsBrowserClient::MaybeCreateResourceBundleRequestJob(
 132     net::URLRequest* request,
 133     net::NetworkDelegate* network_delegate,
 134     const base::FilePath& directory_path,
 135     const std::string& content_security_policy,
 136     bool send_cors_header) {
 137   return chrome_url_request_util::MaybeCreateURLRequestResourceBundleJob(
 138       request,
 139       network_delegate,
 140       directory_path,
 141       content_security_policy,
 142       send_cors_header);
 143 }
 144
 145 bool ChromeExtensionsBrowserClient::AllowCrossRendererResourceLoad(
 146     net::URLRequest* request,
 147     bool is_incognito,
 148     const Extension* extension,
 149     InfoMap* extension_info_map) {
 150   bool allowed = false;
 151   if (chrome_url_request_util::AllowCrossRendererResourceLoad(
 152           request, is_incognito, extension, extension_info_map, &allowed))
 153     return allowed;
 154
 155   // Couldn't determine if resource is allowed. Block the load.
 156   return false;
 157 }
 158
 159 PrefService* ChromeExtensionsBrowserClient::GetPrefServiceForContext(
 160     content::BrowserContext* context) {
 161   return static_cast<Profile*>(context)->GetPrefs();
 162 }
 163
 164 void ChromeExtensionsBrowserClient::GetEarlyExtensionPrefsObservers(
 165     content::BrowserContext* context,
 166     std::vector<ExtensionPrefsObserver*>* observers) const {
 167   observers->push_back(ContentSettingsService::Get(context));
 168 }
 169
 170 ProcessManagerDelegate*
 171 ChromeExtensionsBrowserClient::GetProcessManagerDelegate() const {
 172   return process_manager_delegate_.get();
 173 }
 174
 175 scoped_ptr<ExtensionHostDelegate>
 176 ChromeExtensionsBrowserClient::CreateExtensionHostDelegate() {
 177   return scoped_ptr<ExtensionHostDelegate>(new ChromeExtensionHostDelegate);
 178 }
 179
 180 bool ChromeExtensionsBrowserClient::DidVersionUpdate(
 181     content::BrowserContext* context) {
 182   Profile* profile = static_cast<Profile*>(context);
 183
 184   // Unit tests may not provide prefs; assume everything is up-to-date.
 185   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(profile);
 186   if (!extension_prefs)
 187     return false;
 188
 189   // If we're inside a browser test, then assume prefs are all up-to-date.
 190   if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType))
 191     return false;
 192
 193   PrefService* pref_service = extension_prefs->pref_service();
 194   base::Version last_version;
 195   if (pref_service->HasPrefPath(pref_names::kLastChromeVersion)) {
 196     std::string last_version_str =
 197         pref_service->GetString(pref_names::kLastChromeVersion);
 198     last_version = base::Version(last_version_str);
 199   }
 200
 201   chrome::VersionInfo current_version_info;
 202   std::string current_version = current_version_info.Version();
 203   pref_service->SetString(pref_names::kLastChromeVersion,
 204                           current_version);
 205
 206   // If there was no version string in prefs, assume we're out of date.
 207   if (!last_version.IsValid())
 208     return true;
 209
 210   return last_version.IsOlderThan(current_version);
 211 }
 212
 213 void ChromeExtensionsBrowserClient::PermitExternalProtocolHandler() {
 214   ExternalProtocolHandler::PermitLaunchUrl();
 215 }
 216
 217 scoped_ptr<AppSorting> ChromeExtensionsBrowserClient::CreateAppSorting() {
 218   return scoped_ptr<AppSorting>(new ChromeAppSorting());
 219 }
 220
 221 bool ChromeExtensionsBrowserClient::IsRunningInForcedAppMode() {
 222   return chrome::IsRunningInForcedAppMode();
 223 }
 224
 225 ApiActivityMonitor* ChromeExtensionsBrowserClient::GetApiActivityMonitor(
 226     content::BrowserContext* context) {
 227   // The ActivityLog monitors and records function calls and events.
 228   return ActivityLog::GetInstance(context);
 229 }
 230
 231 ExtensionSystemProvider*
 232 ChromeExtensionsBrowserClient::GetExtensionSystemFactory() {
 233   return ExtensionSystemFactory::GetInstance();
 234 }
 235
 236 void ChromeExtensionsBrowserClient::RegisterExtensionFunctions(
 237     ExtensionFunctionRegistry* registry) const {
 238   // Preferences.
 239   registry->RegisterFunction<extensions::GetPreferenceFunction>();
 240   registry->RegisterFunction<extensions::SetPreferenceFunction>();
 241   registry->RegisterFunction<extensions::ClearPreferenceFunction>();
 242
 243   // Direct Preference Access for Component Extensions.
 244   registry->RegisterFunction<
 245       extensions::chromedirectsetting::GetDirectSettingFunction>();
 246   registry->RegisterFunction<
 247       extensions::chromedirectsetting::SetDirectSettingFunction>();
 248   registry->RegisterFunction<
 249       extensions::chromedirectsetting::ClearDirectSettingFunction>();
 250
 251   // Generated APIs from lower-level modules.
 252   extensions::core_api::GeneratedFunctionRegistry::RegisterAll(registry);
 253
 254   // Generated APIs from Chrome.
 255   extensions::api::GeneratedFunctionRegistry::RegisterAll(registry);
 256 }
 257
 258 scoped_ptr<extensions::RuntimeAPIDelegate>
 259 ChromeExtensionsBrowserClient::CreateRuntimeAPIDelegate(
 260     content::BrowserContext* context) const {
 261   return scoped_ptr<extensions::RuntimeAPIDelegate>(
 262       new ChromeRuntimeAPIDelegate(context));
 263 }
 264
 265 const ComponentExtensionResourceManager*
 266 ChromeExtensionsBrowserClient::GetComponentExtensionResourceManager() {
 267   return resource_manager_.get();
 268 }
 269
 270 void ChromeExtensionsBrowserClient::BroadcastEventToRenderers(
 271     const std::string& event_name,
 272     scoped_ptr<base::ListValue> args) {
 273   g_browser_process->extension_event_router_forwarder()
 274       ->BroadcastEventToRenderers(event_name, args.Pass(), GURL());
 275 }
 276
 277 net::NetLog* ChromeExtensionsBrowserClient::GetNetLog() {
 278   return g_browser_process->net_log();
 279 }
 280
 281 ExtensionCache* ChromeExtensionsBrowserClient::GetExtensionCache() {
 282   if (!extension_cache_.get()) {
 283 #if defined(OS_CHROMEOS)
 284     extension_cache_.reset(new ExtensionCacheImpl());
 285 #else
 286     extension_cache_.reset(new NullExtensionCache());
 287 #endif
 288   }
 289   return extension_cache_.get();
 290 }
 291
 292 bool ChromeExtensionsBrowserClient::IsBackgroundUpdateAllowed() {
 293   return !base::CommandLine::ForCurrentProcess()->HasSwitch(
 294       switches::kDisableBackgroundNetworking);
 295 }
 296
 297 bool ChromeExtensionsBrowserClient::IsMinBrowserVersionSupported(
 298     const std::string& min_version) {
 299   chrome::VersionInfo version_info;
 300   base::Version browser_version = base::Version(version_info.Version());
 301   Version browser_min_version(min_version);
 302   if (browser_version.IsValid() && browser_min_version.IsValid() &&
 303       browser_min_version.CompareTo(browser_version) > 0) {
 304     return false;
 305   }
 306   return true;
 307 }
 308
 309 }  // namespace extensions