extensions/shell/browser/shell_extension_system.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 "extensions/shell/browser/shell_extension_system.h"
   6
   7 #include <string>
   8
   9 #include "base/files/file_path.h"
  10 #include "base/files/file_util.h"
  11 #include "content/public/browser/browser_context.h"
  12 #include "content/public/browser/browser_thread.h"
  13 #include "content/public/browser/notification_details.h"
  14 #include "content/public/browser/notification_service.h"
  15 #include "content/public/browser/notification_source.h"
  16 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
  17 #include "extensions/browser/event_router.h"
  18 #include "extensions/browser/extension_prefs.h"
  19 #include "extensions/browser/extension_registry.h"
  20 #include "extensions/browser/info_map.h"
  21 #include "extensions/browser/lazy_background_task_queue.h"
  22 #include "extensions/browser/notification_types.h"
  23 #include "extensions/browser/quota_service.h"
  24 #include "extensions/browser/runtime_data.h"
  25 #include "extensions/common/constants.h"
  26 #include "extensions/common/file_util.h"
  27
  28 using content::BrowserContext;
  29 using content::BrowserThread;
  30
  31 namespace extensions {
  32
  33 ShellExtensionSystem::ShellExtensionSystem(BrowserContext* browser_context)
  34     : browser_context_(browser_context) {
  35 }
  36
  37 ShellExtensionSystem::~ShellExtensionSystem() {
  38 }
  39
  40 const Extension* ShellExtensionSystem::LoadApp(const base::FilePath& app_dir) {
  41   // app_shell only supports unpacked extensions.
  42   // NOTE: If you add packed extension support consider removing the flag
  43   // FOLLOW_SYMLINKS_ANYWHERE below. Packed extensions should not have symlinks.
  44   CHECK(base::DirectoryExists(app_dir)) << app_dir.AsUTF8Unsafe();
  45   int load_flags = Extension::FOLLOW_SYMLINKS_ANYWHERE;
  46   std::string load_error;
  47   scoped_refptr<Extension> extension = file_util::LoadExtension(
  48       app_dir, Manifest::COMMAND_LINE, load_flags, &load_error);
  49   if (!extension.get()) {
  50     LOG(ERROR) << "Loading extension at " << app_dir.value()
  51                << " failed with: " << load_error;
  52     return nullptr;
  53   }
  54
  55   // TODO(jamescook): We may want to do some of these things here:
  56   // * Create a PermissionsUpdater.
  57   // * Call PermissionsUpdater::GrantActivePermissions().
  58   // * Call ExtensionService::SatisfyImports().
  59   // * Call ExtensionPrefs::OnExtensionInstalled().
  60   // * Send NOTIFICATION_EXTENSION_WILL_BE_INSTALLED_DEPRECATED.
  61
  62   ExtensionRegistry::Get(browser_context_)->AddEnabled(extension.get());
  63
  64   RegisterExtensionWithRequestContexts(extension.get());
  65
  66   content::NotificationService::current()->Notify(
  67       extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
  68       content::Source<BrowserContext>(browser_context_),
  69       content::Details<const Extension>(extension.get()));
  70
  71   return extension.get();
  72 }
  73
  74 void ShellExtensionSystem::Init() {
  75   // Inform the rest of the extensions system to start.
  76   ready_.Signal();
  77   content::NotificationService::current()->Notify(
  78       extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
  79       content::Source<BrowserContext>(browser_context_),
  80       content::NotificationService::NoDetails());
  81 }
  82
  83 void ShellExtensionSystem::LaunchApp(const ExtensionId& extension_id) {
  84   // Send the onLaunched event.
  85   DCHECK(ExtensionRegistry::Get(browser_context_)
  86              ->enabled_extensions()
  87              .Contains(extension_id));
  88   const Extension* extension = ExtensionRegistry::Get(browser_context_)
  89                                    ->enabled_extensions()
  90                                    .GetByID(extension_id);
  91   AppRuntimeEventRouter::DispatchOnLaunchedEvent(
  92       browser_context_, extension, extensions::SOURCE_UNTRACKED);
  93 }
  94
  95 void ShellExtensionSystem::Shutdown() {
  96 }
  97
  98 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
  99   runtime_data_.reset(
 100       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
 101   lazy_background_task_queue_.reset(
 102       new LazyBackgroundTaskQueue(browser_context_));
 103   event_router_.reset(
 104       new EventRouter(browser_context_, ExtensionPrefs::Get(browser_context_)));
 105   quota_service_.reset(new QuotaService);
 106 }
 107
 108 ExtensionService* ShellExtensionSystem::extension_service() {
 109   return nullptr;
 110 }
 111
 112 RuntimeData* ShellExtensionSystem::runtime_data() {
 113   return runtime_data_.get();
 114 }
 115
 116 ManagementPolicy* ShellExtensionSystem::management_policy() {
 117   return nullptr;
 118 }
 119
 120 SharedUserScriptMaster* ShellExtensionSystem::shared_user_script_master() {
 121   return nullptr;
 122 }
 123
 124 DeclarativeUserScriptManager*
 125 ShellExtensionSystem::declarative_user_script_manager() {
 126   return nullptr;
 127 }
 128
 129 StateStore* ShellExtensionSystem::state_store() {
 130   return nullptr;
 131 }
 132
 133 StateStore* ShellExtensionSystem::rules_store() {
 134   return nullptr;
 135 }
 136
 137 InfoMap* ShellExtensionSystem::info_map() {
 138   if (!info_map_.get())
 139     info_map_ = new InfoMap;
 140   return info_map_.get();
 141 }
 142
 143 LazyBackgroundTaskQueue* ShellExtensionSystem::lazy_background_task_queue() {
 144   return lazy_background_task_queue_.get();
 145 }
 146
 147 EventRouter* ShellExtensionSystem::event_router() {
 148   return event_router_.get();
 149 }
 150
 151 ErrorConsole* ShellExtensionSystem::error_console() {
 152   return nullptr;
 153 }
 154
 155 InstallVerifier* ShellExtensionSystem::install_verifier() {
 156   return nullptr;
 157 }
 158
 159 QuotaService* ShellExtensionSystem::quota_service() {
 160   return quota_service_.get();
 161 }
 162
 163 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
 164     const Extension* extension) {
 165   BrowserThread::PostTask(BrowserThread::IO,
 166                           FROM_HERE,
 167                           base::Bind(&InfoMap::AddExtension,
 168                                      info_map(),
 169                                      make_scoped_refptr(extension),
 170                                      base::Time::Now(),
 171                                      false,
 172                                      false));
 173 }
 174
 175 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
 176     const std::string& extension_id,
 177     const UnloadedExtensionInfo::Reason reason) {
 178 }
 179
 180 const OneShotEvent& ShellExtensionSystem::ready() const {
 181   return ready_;
 182 }
 183
 184 ContentVerifier* ShellExtensionSystem::content_verifier() {
 185   return nullptr;
 186 }
 187
 188 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
 189     const Extension* extension) {
 190   return make_scoped_ptr(new ExtensionSet());
 191 }
 192
 193 }  // namespace extensions