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