chrome/browser/extensions/extension_system_impl.cc

   1 // Copyright 2014 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/extension_system_impl.h"
   6
   7 #include "base/base_switches.h"
   8 #include "base/bind.h"
   9 #include "base/command_line.h"
  10 #include "base/files/file_path.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/strings/string_tokenizer.h"
  13 #include "base/trace_event/trace_event.h"
  14 #include "chrome/browser/browser_process.h"
  15 #include "chrome/browser/extensions/chrome_app_sorting.h"
  16 #include "chrome/browser/extensions/chrome_content_verifier_delegate.h"
  17 #include "chrome/browser/extensions/component_loader.h"
  18 #include "chrome/browser/extensions/extension_error_reporter.h"
  19 #include "chrome/browser/extensions/extension_management.h"
  20 #include "chrome/browser/extensions/extension_service.h"
  21 #include "chrome/browser/extensions/extension_sync_service.h"
  22 #include "chrome/browser/extensions/extension_system_factory.h"
  23 #include "chrome/browser/extensions/extension_util.h"
  24 #include "chrome/browser/extensions/install_verifier.h"
  25 #include "chrome/browser/extensions/navigation_observer.h"
  26 #include "chrome/browser/extensions/shared_module_service.h"
  27 #include "chrome/browser/extensions/shared_user_script_master.h"
  28 #include "chrome/browser/extensions/state_store_notification_observer.h"
  29 #include "chrome/browser/extensions/unpacked_installer.h"
  30 #include "chrome/browser/profiles/profile.h"
  31 #include "chrome/browser/profiles/profile_manager.h"
  32 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
  33 #include "chrome/common/chrome_switches.h"
  34 #include "chrome/common/extensions/features/feature_channel.h"
  35 #include "content/public/browser/browser_thread.h"
  36 #include "content/public/browser/url_data_source.h"
  37 #include "extensions/browser/content_verifier.h"
  38 #include "extensions/browser/extension_pref_store.h"
  39 #include "extensions/browser/extension_pref_value_map.h"
  40 #include "extensions/browser/extension_pref_value_map_factory.h"
  41 #include "extensions/browser/extension_prefs.h"
  42 #include "extensions/browser/extension_registry.h"
  43 #include "extensions/browser/info_map.h"
  44 #include "extensions/browser/quota_service.h"
  45 #include "extensions/browser/runtime_data.h"
  46 #include "extensions/browser/state_store.h"
  47 #include "extensions/common/constants.h"
  48
  49 #if defined(ENABLE_NOTIFICATIONS)
  50 #include "chrome/browser/notifications/notifier_state_tracker.h"
  51 #include "chrome/browser/notifications/notifier_state_tracker_factory.h"
  52 #include "ui/message_center/notifier_settings.h"
  53 #endif
  54
  55 #if defined(OS_CHROMEOS)
  56 #include "chrome/browser/app_mode/app_mode_utils.h"
  57 #include "chrome/browser/chromeos/extensions/device_local_account_management_policy_provider.h"
  58 #include "chrome/browser/chromeos/policy/device_local_account.h"
  59 #include "chromeos/chromeos_switches.h"
  60 #include "chromeos/login/login_state.h"
  61 #include "components/user_manager/user.h"
  62 #include "components/user_manager/user_manager.h"
  63 #endif
  64
  65 using content::BrowserThread;
  66
  67 // Statistics are logged to UMA with this string as part of histogram name. They
  68 // can all be found under Extensions.Database.Open.<client>. Changing this needs
  69 // to synchronize with histograms.xml, AND will also become incompatible with
  70 // older browsers still reporting the previous values.
  71 const char kStateDatabaseUMAClientName[] = "State";
  72 const char kRulesDatabaseUMAClientName[] = "Rules";
  73
  74 namespace extensions {
  75
  76 //
  77 // ExtensionSystemImpl::Shared
  78 //
  79
  80 ExtensionSystemImpl::Shared::Shared(Profile* profile)
  81     : profile_(profile) {
  82 }
  83
  84 ExtensionSystemImpl::Shared::~Shared() {
  85 }
  86
  87 void ExtensionSystemImpl::Shared::InitPrefs() {
  88   // Two state stores. The latter, which contains declarative rules, must be
  89   // loaded immediately so that the rules are ready before we issue network
  90   // requests.
  91   state_store_.reset(new StateStore(
  92       profile_, kStateDatabaseUMAClientName,
  93       profile_->GetPath().AppendASCII(extensions::kStateStoreName), true));
  94   state_store_notification_observer_.reset(
  95       new StateStoreNotificationObserver(state_store_.get()));
  96
  97   rules_store_.reset(new StateStore(
  98       profile_, kRulesDatabaseUMAClientName,
  99       profile_->GetPath().AppendASCII(extensions::kRulesStoreName), false));
 100
 101 #if defined(OS_CHROMEOS)
 102   const user_manager::User* user =
 103       user_manager::UserManager::Get()->GetActiveUser();
 104   policy::DeviceLocalAccount::Type device_local_account_type;
 105   if (user && policy::IsDeviceLocalAccountUser(user->email(),
 106                                                &device_local_account_type)) {
 107     device_local_account_management_policy_provider_.reset(
 108         new chromeos::DeviceLocalAccountManagementPolicyProvider(
 109             device_local_account_type));
 110   }
 111 #endif  // defined(OS_CHROMEOS)
 112 }
 113
 114 void ExtensionSystemImpl::Shared::RegisterManagementPolicyProviders() {
 115   management_policy_->RegisterProviders(
 116       ExtensionManagementFactory::GetForBrowserContext(profile_)
 117           ->GetProviders());
 118
 119 #if defined(OS_CHROMEOS)
 120   if (device_local_account_management_policy_provider_) {
 121     management_policy_->RegisterProvider(
 122         device_local_account_management_policy_provider_.get());
 123   }
 124 #endif  // defined(OS_CHROMEOS)
 125
 126   management_policy_->RegisterProvider(InstallVerifier::Get(profile_));
 127 }
 128
 129 void ExtensionSystemImpl::Shared::Init(bool extensions_enabled) {
 130   TRACE_EVENT0("browser,startup", "ExtensionSystemImpl::Shared::Init");
 131   const base::CommandLine* command_line =
 132       base::CommandLine::ForCurrentProcess();
 133
 134   navigation_observer_.reset(new NavigationObserver(profile_));
 135
 136   bool allow_noisy_errors = !command_line->HasSwitch(switches::kNoErrorDialogs);
 137   ExtensionErrorReporter::Init(allow_noisy_errors);
 138
 139   content_verifier_ = new ContentVerifier(
 140       profile_, new ChromeContentVerifierDelegate(profile_));
 141
 142   shared_user_script_master_.reset(new SharedUserScriptMaster(profile_));
 143
 144   // ExtensionService depends on RuntimeData.
 145   runtime_data_.reset(new RuntimeData(ExtensionRegistry::Get(profile_)));
 146
 147   bool autoupdate_enabled = !profile_->IsGuestSession() &&
 148                             !profile_->IsSystemProfile();
 149 #if defined(OS_CHROMEOS)
 150   if (!extensions_enabled)
 151     autoupdate_enabled = false;
 152 #endif  // defined(OS_CHROMEOS)
 153   extension_service_.reset(new ExtensionService(
 154       profile_, base::CommandLine::ForCurrentProcess(),
 155       profile_->GetPath().AppendASCII(extensions::kInstallDirectoryName),
 156       ExtensionPrefs::Get(profile_), Blacklist::Get(profile_),
 157       autoupdate_enabled, extensions_enabled, &ready_));
 158
 159   // These services must be registered before the ExtensionService tries to
 160   // load any extensions.
 161   {
 162     InstallVerifier::Get(profile_)->Init();
 163     ContentVerifierDelegate::Mode mode =
 164         ChromeContentVerifierDelegate::GetDefaultMode();
 165 #if defined(OS_CHROMEOS)
 166     mode = std::max(mode, ContentVerifierDelegate::BOOTSTRAP);
 167 #endif  // defined(OS_CHROMEOS)
 168     if (mode >= ContentVerifierDelegate::BOOTSTRAP)
 169       content_verifier_->Start();
 170     info_map()->SetContentVerifier(content_verifier_.get());
 171
 172     management_policy_.reset(new ManagementPolicy);
 173     RegisterManagementPolicyProviders();
 174   }
 175
 176   bool skip_session_extensions = false;
 177 #if defined(OS_CHROMEOS)
 178   // Skip loading session extensions if we are not in a user session.
 179   skip_session_extensions = !chromeos::LoginState::Get()->IsUserLoggedIn();
 180   if (chrome::IsRunningInForcedAppMode()) {
 181     extension_service_->component_loader()->
 182         AddDefaultComponentExtensionsForKioskMode(skip_session_extensions);
 183   } else {
 184     extension_service_->component_loader()->AddDefaultComponentExtensions(
 185         skip_session_extensions);
 186   }
 187 #else
 188   extension_service_->component_loader()->AddDefaultComponentExtensions(
 189       skip_session_extensions);
 190 #endif
 191   if (command_line->HasSwitch(switches::kLoadComponentExtension)) {
 192     base::CommandLine::StringType path_list =
 193         command_line->GetSwitchValueNative(switches::kLoadComponentExtension);
 194     base::StringTokenizerT<base::CommandLine::StringType,
 195                            base::CommandLine::StringType::const_iterator>
 196         t(path_list, FILE_PATH_LITERAL(","));
 197     while (t.GetNext()) {
 198       // Load the component extension manifest synchronously.
 199       // Blocking the UI thread is acceptable here since
 200       // this flag designated for developers.
 201       base::ThreadRestrictions::ScopedAllowIO allow_io;
 202       extension_service_->component_loader()->AddOrReplace(
 203           base::FilePath(t.token()));
 204     }
 205   }
 206
 207   app_sorting_.reset(new ChromeAppSorting(profile_));
 208
 209   extension_service_->Init();
 210
 211   // Make sure ExtensionSyncService is created.
 212   ExtensionSyncService::Get(profile_);
 213
 214   // Make the chrome://extension-icon/ resource available.
 215   content::URLDataSource::Add(profile_, new ExtensionIconSource(profile_));
 216
 217   quota_service_.reset(new QuotaService);
 218
 219   if (extensions_enabled) {
 220     // Load any extensions specified with --load-extension.
 221     // TODO(yoz): Seems like this should move into ExtensionService::Init.
 222     // But maybe it's no longer important.
 223     if (command_line->HasSwitch(switches::kLoadExtension)) {
 224       base::CommandLine::StringType path_list =
 225           command_line->GetSwitchValueNative(switches::kLoadExtension);
 226       base::StringTokenizerT<base::CommandLine::StringType,
 227                              base::CommandLine::StringType::const_iterator>
 228           t(path_list, FILE_PATH_LITERAL(","));
 229       while (t.GetNext()) {
 230         std::string extension_id;
 231         UnpackedInstaller::Create(extension_service_.get())->
 232             LoadFromCommandLine(base::FilePath(t.token()), &extension_id);
 233       }
 234     }
 235   }
 236 }
 237
 238 void ExtensionSystemImpl::Shared::Shutdown() {
 239   if (content_verifier_.get())
 240     content_verifier_->Shutdown();
 241   if (extension_service_)
 242     extension_service_->Shutdown();
 243 }
 244
 245 StateStore* ExtensionSystemImpl::Shared::state_store() {
 246   return state_store_.get();
 247 }
 248
 249 StateStore* ExtensionSystemImpl::Shared::rules_store() {
 250   return rules_store_.get();
 251 }
 252
 253 ExtensionService* ExtensionSystemImpl::Shared::extension_service() {
 254   return extension_service_.get();
 255 }
 256
 257 RuntimeData* ExtensionSystemImpl::Shared::runtime_data() {
 258   return runtime_data_.get();
 259 }
 260
 261 ManagementPolicy* ExtensionSystemImpl::Shared::management_policy() {
 262   return management_policy_.get();
 263 }
 264
 265 SharedUserScriptMaster*
 266 ExtensionSystemImpl::Shared::shared_user_script_master() {
 267   return shared_user_script_master_.get();
 268 }
 269
 270 InfoMap* ExtensionSystemImpl::Shared::info_map() {
 271   if (!extension_info_map_.get())
 272     extension_info_map_ = new InfoMap();
 273   return extension_info_map_.get();
 274 }
 275
 276 QuotaService* ExtensionSystemImpl::Shared::quota_service() {
 277   return quota_service_.get();
 278 }
 279
 280 AppSorting* ExtensionSystemImpl::Shared::app_sorting() {
 281   return app_sorting_.get();
 282 }
 283
 284 ContentVerifier* ExtensionSystemImpl::Shared::content_verifier() {
 285   return content_verifier_.get();
 286 }
 287
 288 //
 289 // ExtensionSystemImpl
 290 //
 291
 292 ExtensionSystemImpl::ExtensionSystemImpl(Profile* profile)
 293     : profile_(profile) {
 294   shared_ = ExtensionSystemSharedFactory::GetForBrowserContext(profile);
 295
 296   if (!profile->IsOffTheRecord()) {
 297     shared_->InitPrefs();
 298   }
 299 }
 300
 301 ExtensionSystemImpl::~ExtensionSystemImpl() {
 302 }
 303
 304 void ExtensionSystemImpl::Shutdown() {
 305 }
 306
 307 void ExtensionSystemImpl::InitForRegularProfile(bool extensions_enabled) {
 308   TRACE_EVENT0("browser,startup", "ExtensionSystemImpl::InitForRegularProfile");
 309   DCHECK(!profile_->IsOffTheRecord());
 310   if (shared_user_script_master() || extension_service())
 311     return;  // Already initialized.
 312
 313   // The InfoMap needs to be created before the ProcessManager.
 314   shared_->info_map();
 315   shared_->Init(extensions_enabled);
 316 }
 317
 318 ExtensionService* ExtensionSystemImpl::extension_service() {
 319   return shared_->extension_service();
 320 }
 321
 322 RuntimeData* ExtensionSystemImpl::runtime_data() {
 323   return shared_->runtime_data();
 324 }
 325
 326 ManagementPolicy* ExtensionSystemImpl::management_policy() {
 327   return shared_->management_policy();
 328 }
 329
 330 SharedUserScriptMaster* ExtensionSystemImpl::shared_user_script_master() {
 331   return shared_->shared_user_script_master();
 332 }
 333
 334 StateStore* ExtensionSystemImpl::state_store() {
 335   return shared_->state_store();
 336 }
 337
 338 StateStore* ExtensionSystemImpl::rules_store() {
 339   return shared_->rules_store();
 340 }
 341
 342 InfoMap* ExtensionSystemImpl::info_map() { return shared_->info_map(); }
 343
 344 const OneShotEvent& ExtensionSystemImpl::ready() const {
 345   return shared_->ready();
 346 }
 347
 348 QuotaService* ExtensionSystemImpl::quota_service() {
 349   return shared_->quota_service();
 350 }
 351
 352 AppSorting* ExtensionSystemImpl::app_sorting() {
 353   return shared_->app_sorting();
 354 }
 355
 356 ContentVerifier* ExtensionSystemImpl::content_verifier() {
 357   return shared_->content_verifier();
 358 }
 359
 360 scoped_ptr<ExtensionSet> ExtensionSystemImpl::GetDependentExtensions(
 361     const Extension* extension) {
 362   return extension_service()->shared_module_service()->GetDependentExtensions(
 363       extension);
 364 }
 365
 366 void ExtensionSystemImpl::RegisterExtensionWithRequestContexts(
 367     const Extension* extension,
 368     const base::Closure& callback) {
 369   base::Time install_time;
 370   if (extension->location() != Manifest::COMPONENT) {
 371     install_time = ExtensionPrefs::Get(profile_)->
 372         GetInstallTime(extension->id());
 373   }
 374   bool incognito_enabled = util::IsIncognitoEnabled(extension->id(), profile_);
 375
 376   bool notifications_disabled = false;
 377 #if defined(ENABLE_NOTIFICATIONS)
 378   message_center::NotifierId notifier_id(
 379       message_center::NotifierId::APPLICATION,
 380       extension->id());
 381
 382   NotifierStateTracker* notifier_state_tracker =
 383       NotifierStateTrackerFactory::GetForProfile(profile_);
 384   notifications_disabled =
 385       !notifier_state_tracker->IsNotifierEnabled(notifier_id);
 386 #endif
 387
 388   BrowserThread::PostTaskAndReply(
 389       BrowserThread::IO, FROM_HERE,
 390       base::Bind(&InfoMap::AddExtension, info_map(),
 391                  make_scoped_refptr(extension), install_time, incognito_enabled,
 392                  notifications_disabled),
 393       callback);
 394 }
 395
 396 void ExtensionSystemImpl::UnregisterExtensionWithRequestContexts(
 397     const std::string& extension_id,
 398     const UnloadedExtensionInfo::Reason reason) {
 399   BrowserThread::PostTask(
 400       BrowserThread::IO,
 401       FROM_HERE,
 402       base::Bind(&InfoMap::RemoveExtension, info_map(), extension_id, reason));
 403 }
 404
 405 }  // namespace extensions