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/quota_service.h"
  22 #include "extensions/browser/runtime_data.h"
  23 #include "extensions/common/constants.h"
  24 #include "extensions/common/file_util.h"
  25
  26 using content::BrowserContext;
  27 using content::BrowserThread;
  28
  29 namespace extensions {
  30
  31 ShellExtensionSystem::ShellExtensionSystem(BrowserContext* browser_context)
  32     : browser_context_(browser_context) {
  33 }
  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(extension.get());
  63
  64   content::NotificationService::current()->Notify(
  65       extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
  66       content::Source<BrowserContext>(browser_context_),
  67       content::Details<const Extension>(extension.get()));
  68
  69   return extension.get();
  70 }
  71
  72 void ShellExtensionSystem::Init() {
  73   // Inform the rest of the extensions system to start.
  74   ready_.Signal();
  75   content::NotificationService::current()->Notify(
  76       extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
  77       content::Source<BrowserContext>(browser_context_),
  78       content::NotificationService::NoDetails());
  79 }
  80
  81 void ShellExtensionSystem::LaunchApp(const ExtensionId& extension_id) {
  82   // Send the onLaunched event.
  83   DCHECK(ExtensionRegistry::Get(browser_context_)
  84              ->enabled_extensions()
  85              .Contains(extension_id));
  86   const Extension* extension = ExtensionRegistry::Get(browser_context_)
  87                                    ->enabled_extensions()
  88                                    .GetByID(extension_id);
  89   AppRuntimeEventRouter::DispatchOnLaunchedEvent(
  90       browser_context_, extension, extensions::SOURCE_UNTRACKED);
  91 }
  92
  93 void ShellExtensionSystem::Shutdown() {
  94 }
  95
  96 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
  97   runtime_data_.reset(
  98       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
  99   quota_service_.reset(new QuotaService);
 100 }
 101
 102 ExtensionService* ShellExtensionSystem::extension_service() {
 103   return nullptr;
 104 }
 105
 106 RuntimeData* ShellExtensionSystem::runtime_data() {
 107   return runtime_data_.get();
 108 }
 109
 110 ManagementPolicy* ShellExtensionSystem::management_policy() {
 111   return nullptr;
 112 }
 113
 114 SharedUserScriptMaster* ShellExtensionSystem::shared_user_script_master() {
 115   return nullptr;
 116 }
 117
 118 StateStore* ShellExtensionSystem::state_store() {
 119   return nullptr;
 120 }
 121
 122 StateStore* ShellExtensionSystem::rules_store() {
 123   return nullptr;
 124 }
 125
 126 InfoMap* ShellExtensionSystem::info_map() {
 127   if (!info_map_.get())
 128     info_map_ = new InfoMap;
 129   return info_map_.get();
 130 }
 131
 132 QuotaService* ShellExtensionSystem::quota_service() {
 133   return quota_service_.get();
 134 }
 135
 136 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
 137     const Extension* extension) {
 138   BrowserThread::PostTask(BrowserThread::IO,
 139                           FROM_HERE,
 140                           base::Bind(&InfoMap::AddExtension,
 141                                      info_map(),
 142                                      make_scoped_refptr(extension),
 143                                      base::Time::Now(),
 144                                      false,
 145                                      false));
 146 }
 147
 148 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
 149     const std::string& extension_id,
 150     const UnloadedExtensionInfo::Reason reason) {
 151 }
 152
 153 const OneShotEvent& ShellExtensionSystem::ready() const {
 154   return ready_;
 155 }
 156
 157 ContentVerifier* ShellExtensionSystem::content_verifier() {
 158   return nullptr;
 159 }
 160
 161 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
 162     const Extension* extension) {
 163   return make_scoped_ptr(new ExtensionSet());
 164 }
 165
 166 }  // namespace extensions