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/extension_prefs.h"
  18 #include "extensions/browser/extension_registry.h"
  19 #include "extensions/browser/info_map.h"
  20 #include "extensions/browser/notification_types.h"
  21 #include "extensions/browser/null_app_sorting.h"
  22 #include "extensions/browser/quota_service.h"
  23 #include "extensions/browser/runtime_data.h"
  24 #include "extensions/browser/service_worker_manager.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), weak_factory_(this) {}
  35
  36 ShellExtensionSystem::~ShellExtensionSystem() {
  37 }
  38
  39 const Extension* ShellExtensionSystem::LoadApp(const base::FilePath& app_dir) {
  40   // app_shell only supports unpacked extensions.
  41   // NOTE: If you add packed extension support consider removing the flag
  42   // FOLLOW_SYMLINKS_ANYWHERE below. Packed extensions should not have symlinks.
  43   CHECK(base::DirectoryExists(app_dir)) << app_dir.AsUTF8Unsafe();
  44   int load_flags = Extension::FOLLOW_SYMLINKS_ANYWHERE;
  45   std::string load_error;
  46   scoped_refptr<Extension> extension = file_util::LoadExtension(
  47       app_dir, Manifest::COMMAND_LINE, load_flags, &load_error);
  48   if (!extension.get()) {
  49     LOG(ERROR) << "Loading extension at " << app_dir.value()
  50                << " failed with: " << load_error;
  51     return nullptr;
  52   }
  53
  54   // TODO(jamescook): We may want to do some of these things here:
  55   // * Create a PermissionsUpdater.
  56   // * Call PermissionsUpdater::GrantActivePermissions().
  57   // * Call ExtensionService::SatisfyImports().
  58   // * Call ExtensionPrefs::OnExtensionInstalled().
  59   // * Send NOTIFICATION_EXTENSION_WILL_BE_INSTALLED_DEPRECATED.
  60
  61   ExtensionRegistry::Get(browser_context_)->AddEnabled(extension.get());
  62
  63   RegisterExtensionWithRequestContexts(
  64       extension.get(),
  65       base::Bind(
  66           &ShellExtensionSystem::OnExtensionRegisteredWithRequestContexts,
  67           weak_factory_.GetWeakPtr(), extension));
  68
  69   content::NotificationService::current()->Notify(
  70       extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
  71       content::Source<BrowserContext>(browser_context_),
  72       content::Details<const Extension>(extension.get()));
  73
  74   return extension.get();
  75 }
  76
  77 void ShellExtensionSystem::Init() {
  78   // Inform the rest of the extensions system to start.
  79   ready_.Signal();
  80   content::NotificationService::current()->Notify(
  81       extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
  82       content::Source<BrowserContext>(browser_context_),
  83       content::NotificationService::NoDetails());
  84 }
  85
  86 void ShellExtensionSystem::LaunchApp(const ExtensionId& extension_id) {
  87   // Send the onLaunched event.
  88   DCHECK(ExtensionRegistry::Get(browser_context_)
  89              ->enabled_extensions()
  90              .Contains(extension_id));
  91   const Extension* extension = ExtensionRegistry::Get(browser_context_)
  92                                    ->enabled_extensions()
  93                                    .GetByID(extension_id);
  94   AppRuntimeEventRouter::DispatchOnLaunchedEvent(
  95       browser_context_, extension, extensions::SOURCE_UNTRACKED);
  96 }
  97
  98 void ShellExtensionSystem::Shutdown() {
  99 }
 100
 101 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
 102   service_worker_manager_.reset(new ServiceWorkerManager(browser_context_));
 103   runtime_data_.reset(
 104       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
 105   quota_service_.reset(new QuotaService);
 106   app_sorting_.reset(new NullAppSorting);
 107 }
 108
 109 ExtensionService* ShellExtensionSystem::extension_service() {
 110   return nullptr;
 111 }
 112
 113 RuntimeData* ShellExtensionSystem::runtime_data() {
 114   return runtime_data_.get();
 115 }
 116
 117 ManagementPolicy* ShellExtensionSystem::management_policy() {
 118   return nullptr;
 119 }
 120
 121 ServiceWorkerManager* ShellExtensionSystem::service_worker_manager() {
 122   return service_worker_manager_.get();
 123 }
 124
 125 SharedUserScriptMaster* ShellExtensionSystem::shared_user_script_master() {
 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 QuotaService* ShellExtensionSystem::quota_service() {
 144   return quota_service_.get();
 145 }
 146
 147 AppSorting* ShellExtensionSystem::app_sorting() {
 148   return app_sorting_.get();
 149 }
 150
 151 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
 152     const Extension* extension,
 153     const base::Closure& callback) {
 154   BrowserThread::PostTaskAndReply(BrowserThread::IO, FROM_HERE,
 155                                   base::Bind(&InfoMap::AddExtension, info_map(),
 156                                              make_scoped_refptr(extension),
 157                                              base::Time::Now(), false, false),
 158                                   callback);
 159 }
 160
 161 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
 162     const std::string& extension_id,
 163     const UnloadedExtensionInfo::Reason reason) {
 164 }
 165
 166 const OneShotEvent& ShellExtensionSystem::ready() const {
 167   return ready_;
 168 }
 169
 170 ContentVerifier* ShellExtensionSystem::content_verifier() {
 171   return nullptr;
 172 }
 173
 174 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
 175     const Extension* extension) {
 176   return make_scoped_ptr(new ExtensionSet());
 177 }
 178
 179 void ShellExtensionSystem::OnExtensionRegisteredWithRequestContexts(
 180     scoped_refptr<Extension> extension) {
 181   ExtensionRegistry* registry = ExtensionRegistry::Get(browser_context_);
 182   registry->AddReady(extension);
 183   registry->TriggerOnReady(extension.get());
 184 }
 185
 186 }  // namespace extensions