src/chrome/browser/extensions/chrome_extensions_browser_client.cc

   1 // Copyright 2013 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/chrome_extensions_browser_client.h"
   6
   7 #include "apps/common/api/generated_api.h"
   8 #include "base/command_line.h"
   9 #include "base/version.h"
  10 #include "chrome/browser/app_mode/app_mode_utils.h"
  11 #include "chrome/browser/browser_process.h"
  12 #include "chrome/browser/extensions/activity_log/activity_log.h"
  13 #include "chrome/browser/extensions/api/preference/chrome_direct_setting.h"
  14 #include "chrome/browser/extensions/api/preference/preference_api.h"
  15 #include "chrome/browser/extensions/api/runtime/chrome_runtime_api_delegate.h"
  16 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
  17 #include "chrome/browser/extensions/chrome_app_sorting.h"
  18 #include "chrome/browser/extensions/chrome_extension_host_delegate.h"
  19 #include "chrome/browser/extensions/extension_system_factory.h"
  20 #include "chrome/browser/extensions/extension_util.h"
  21 #include "chrome/browser/extensions/url_request_util.h"
  22 #include "chrome/browser/external_protocol/external_protocol_handler.h"
  23 #include "chrome/browser/profiles/profile.h"
  24 #include "chrome/browser/profiles/profile_manager.h"
  25 #include "chrome/browser/ui/browser_finder.h"
  26 #include "chrome/common/chrome_switches.h"
  27 #include "chrome/common/chrome_version_info.h"
  28 #include "chrome/common/extensions/api/generated_api.h"
  29 #include "chrome/common/extensions/features/feature_channel.h"
  30 #include "chrome/common/pref_names.h"
  31 #include "extensions/browser/extension_function_registry.h"
  32 #include "extensions/browser/extension_prefs.h"
  33 #include "extensions/browser/pref_names.h"
  34 #include "extensions/common/api/generated_api.h"
  35
  36 #if defined(OS_CHROMEOS)
  37 #include "chromeos/chromeos_switches.h"
  38 #endif
  39
  40 #if defined(ENABLE_EXTENSIONS)
  41 #include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
  42 #include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
  43 #endif
  44
  45 namespace extensions {
  46
  47 ChromeExtensionsBrowserClient::ChromeExtensionsBrowserClient() {
  48 #if defined(ENABLE_EXTENSIONS)
  49   api_client_.reset(new ChromeExtensionsAPIClient);
  50 #endif
  51   // Only set if it hasn't already been set (e.g. by a test).
  52   if (GetCurrentChannel() == GetDefaultChannel())
  53     SetCurrentChannel(chrome::VersionInfo::GetChannel());
  54 }
  55
  56 ChromeExtensionsBrowserClient::~ChromeExtensionsBrowserClient() {}
  57
  58 bool ChromeExtensionsBrowserClient::IsShuttingDown() {
  59   return g_browser_process->IsShuttingDown();
  60 }
  61
  62 bool ChromeExtensionsBrowserClient::AreExtensionsDisabled(
  63     const CommandLine& command_line,
  64     content::BrowserContext* context) {
  65   Profile* profile = static_cast<Profile*>(context);
  66   return command_line.HasSwitch(switches::kDisableExtensions) ||
  67       profile->GetPrefs()->GetBoolean(prefs::kDisableExtensions);
  68 }
  69
  70 bool ChromeExtensionsBrowserClient::IsValidContext(
  71     content::BrowserContext* context) {
  72   Profile* profile = static_cast<Profile*>(context);
  73   return g_browser_process->profile_manager()->IsValidProfile(profile);
  74 }
  75
  76 bool ChromeExtensionsBrowserClient::IsSameContext(
  77     content::BrowserContext* first,
  78     content::BrowserContext* second) {
  79   return static_cast<Profile*>(first)->IsSameProfile(
  80       static_cast<Profile*>(second));
  81 }
  82
  83 bool ChromeExtensionsBrowserClient::HasOffTheRecordContext(
  84     content::BrowserContext* context) {
  85   return static_cast<Profile*>(context)->HasOffTheRecordProfile();
  86 }
  87
  88 content::BrowserContext* ChromeExtensionsBrowserClient::GetOffTheRecordContext(
  89     content::BrowserContext* context) {
  90   return static_cast<Profile*>(context)->GetOffTheRecordProfile();
  91 }
  92
  93 content::BrowserContext* ChromeExtensionsBrowserClient::GetOriginalContext(
  94     content::BrowserContext* context) {
  95   return static_cast<Profile*>(context)->GetOriginalProfile();
  96 }
  97
  98 bool ChromeExtensionsBrowserClient::IsGuestSession(
  99     content::BrowserContext* context) const {
 100   return static_cast<Profile*>(context)->IsGuestSession();
 101 }
 102
 103 bool ChromeExtensionsBrowserClient::IsExtensionIncognitoEnabled(
 104     const std::string& extension_id,
 105     content::BrowserContext* context) const {
 106   return IsGuestSession(context)
 107       || util::IsIncognitoEnabled(extension_id, context);
 108 }
 109
 110 bool ChromeExtensionsBrowserClient::CanExtensionCrossIncognito(
 111     const extensions::Extension* extension,
 112     content::BrowserContext* context) const {
 113   return IsGuestSession(context)
 114       || util::CanCrossIncognito(extension, context);
 115 }
 116
 117 bool ChromeExtensionsBrowserClient::IsWebViewRequest(
 118     net::URLRequest* request) const {
 119   return url_request_util::IsWebViewRequest(request);
 120 }
 121
 122 net::URLRequestJob*
 123 ChromeExtensionsBrowserClient::MaybeCreateResourceBundleRequestJob(
 124     net::URLRequest* request,
 125     net::NetworkDelegate* network_delegate,
 126     const base::FilePath& directory_path,
 127     const std::string& content_security_policy,
 128     bool send_cors_header) {
 129   return url_request_util::MaybeCreateURLRequestResourceBundleJob(
 130       request,
 131       network_delegate,
 132       directory_path,
 133       content_security_policy,
 134       send_cors_header);
 135 }
 136
 137 bool ChromeExtensionsBrowserClient::AllowCrossRendererResourceLoad(
 138     net::URLRequest* request,
 139     bool is_incognito,
 140     const Extension* extension,
 141     InfoMap* extension_info_map) {
 142   return url_request_util::AllowCrossRendererResourceLoad(
 143       request, is_incognito, extension, extension_info_map);
 144 }
 145
 146 PrefService* ChromeExtensionsBrowserClient::GetPrefServiceForContext(
 147     content::BrowserContext* context) {
 148   return static_cast<Profile*>(context)->GetPrefs();
 149 }
 150
 151 void ChromeExtensionsBrowserClient::GetEarlyExtensionPrefsObservers(
 152     content::BrowserContext* context,
 153     std::vector<ExtensionPrefsObserver*>* observers) const {
 154 #if defined(ENABLE_EXTENSIONS)
 155   observers->push_back(ContentSettingsService::Get(context));
 156 #endif
 157 }
 158
 159 bool ChromeExtensionsBrowserClient::DeferLoadingBackgroundHosts(
 160     content::BrowserContext* context) const {
 161   Profile* profile = static_cast<Profile*>(context);
 162
 163   // The profile may not be valid yet if it is still being initialized.
 164   // In that case, defer loading, since it depends on an initialized profile.
 165   // http://crbug.com/222473
 166   if (!g_browser_process->profile_manager()->IsValidProfile(profile))
 167     return true;
 168
 169 #if defined(OS_ANDROID)
 170   return false;
 171 #else
 172   // There are no browser windows open and the browser process was
 173   // started to show the app launcher.
 174   return chrome::GetTotalBrowserCountForProfile(profile) == 0 &&
 175          CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList);
 176 #endif
 177 }
 178
 179 bool ChromeExtensionsBrowserClient::IsBackgroundPageAllowed(
 180     content::BrowserContext* context) const {
 181   // Returns true if current session is Guest mode session and current
 182   // browser context is *not* off-the-record. Such context is artificial and
 183   // background page shouldn't be created in it.
 184   return !static_cast<Profile*>(context)->IsGuestSession() ||
 185          context->IsOffTheRecord();
 186 }
 187
 188 scoped_ptr<ExtensionHostDelegate>
 189 ChromeExtensionsBrowserClient::CreateExtensionHostDelegate() {
 190   return scoped_ptr<ExtensionHostDelegate>(new ChromeExtensionHostDelegate);
 191 }
 192
 193 bool ChromeExtensionsBrowserClient::DidVersionUpdate(
 194     content::BrowserContext* context) {
 195   Profile* profile = static_cast<Profile*>(context);
 196
 197   // Unit tests may not provide prefs; assume everything is up-to-date.
 198   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(profile);
 199   if (!extension_prefs)
 200     return false;
 201
 202   // If we're inside a browser test, then assume prefs are all up-to-date.
 203   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType))
 204     return false;
 205
 206   PrefService* pref_service = extension_prefs->pref_service();
 207   base::Version last_version;
 208   if (pref_service->HasPrefPath(pref_names::kLastChromeVersion)) {
 209     std::string last_version_str =
 210         pref_service->GetString(pref_names::kLastChromeVersion);
 211     last_version = base::Version(last_version_str);
 212   }
 213
 214   chrome::VersionInfo current_version_info;
 215   std::string current_version = current_version_info.Version();
 216   pref_service->SetString(pref_names::kLastChromeVersion,
 217                           current_version);
 218
 219   // If there was no version string in prefs, assume we're out of date.
 220   if (!last_version.IsValid())
 221     return true;
 222
 223   return last_version.IsOlderThan(current_version);
 224 }
 225
 226 scoped_ptr<AppSorting> ChromeExtensionsBrowserClient::CreateAppSorting() {
 227   return scoped_ptr<AppSorting>(new ChromeAppSorting());
 228 }
 229
 230 bool ChromeExtensionsBrowserClient::IsRunningInForcedAppMode() {
 231   return chrome::IsRunningInForcedAppMode();
 232 }
 233
 234 ApiActivityMonitor* ChromeExtensionsBrowserClient::GetApiActivityMonitor(
 235     content::BrowserContext* context) {
 236   // The ActivityLog monitors and records function calls and events.
 237   return ActivityLog::GetInstance(context);
 238 }
 239
 240 ExtensionSystemProvider*
 241 ChromeExtensionsBrowserClient::GetExtensionSystemFactory() {
 242   return ExtensionSystemFactory::GetInstance();
 243 }
 244
 245 void ChromeExtensionsBrowserClient::RegisterExtensionFunctions(
 246     ExtensionFunctionRegistry* registry) const {
 247 // TODO(rockot): Figure out if and why Android really needs to build
 248 // ChromeExtensionsBrowserClient and refactor so this ifdef isn't necessary.
 249 // See http://crbug.com/349436
 250 #if defined(ENABLE_EXTENSIONS)
 251   // Preferences.
 252   registry->RegisterFunction<extensions::GetPreferenceFunction>();
 253   registry->RegisterFunction<extensions::SetPreferenceFunction>();
 254   registry->RegisterFunction<extensions::ClearPreferenceFunction>();
 255
 256   // Direct Preference Access for Component Extensions.
 257   registry->RegisterFunction<
 258       extensions::chromedirectsetting::GetDirectSettingFunction>();
 259   registry->RegisterFunction<
 260       extensions::chromedirectsetting::SetDirectSettingFunction>();
 261   registry->RegisterFunction<
 262       extensions::chromedirectsetting::ClearDirectSettingFunction>();
 263
 264   // Generated APIs from lower-level modules.
 265   extensions::core_api::GeneratedFunctionRegistry::RegisterAll(registry);
 266   apps::api::GeneratedFunctionRegistry::RegisterAll(registry);
 267
 268   // Generated APIs from Chrome.
 269   extensions::api::GeneratedFunctionRegistry::RegisterAll(registry);
 270 #endif
 271 }
 272
 273 scoped_ptr<extensions::RuntimeAPIDelegate>
 274 ChromeExtensionsBrowserClient::CreateRuntimeAPIDelegate(
 275     content::BrowserContext* context) const {
 276   return scoped_ptr<extensions::RuntimeAPIDelegate>(
 277       new ChromeRuntimeAPIDelegate(context));
 278 }
 279
 280 }  // namespace extensions