chrome/browser/extensions/external_component_loader.cc

   1 // Copyright (c) 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/external_component_loader.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/extensions/component_extensions_whitelist/whitelist.h"
  12 #include "chrome/browser/search/hotword_service.h"
  13 #include "chrome/browser/search/hotword_service_factory.h"
  14 #include "chrome/browser/signin/signin_manager_factory.h"
  15 #include "chrome/common/chrome_switches.h"
  16 #include "chrome/common/extensions/extension_constants.h"
  17 #include "components/signin/core/browser/signin_manager.h"
  18 #include "extensions/common/extension.h"
  19 #include "extensions/common/extension_urls.h"
  20 #include "extensions/common/features/simple_feature.h"
  21
  22 #if defined(OS_CHROMEOS)
  23 #include "base/command_line.h"
  24 #include "chromeos/chromeos_switches.h"
  25 #endif
  26
  27 #if defined(ENABLE_APP_LIST) && defined(OS_CHROMEOS)
  28 #include "chrome/browser/ui/app_list/google_now_extension.h"
  29 #endif
  30
  31 namespace extensions {
  32
  33 ExternalComponentLoader::ExternalComponentLoader(Profile* profile)
  34     : profile_(profile) {
  35 }
  36
  37 ExternalComponentLoader::~ExternalComponentLoader() {}
  38
  39 // static
  40 bool ExternalComponentLoader::IsModifiable(const Extension* extension) {
  41   if (extension->location() == Manifest::EXTERNAL_COMPONENT) {
  42     static const char* const kEnhancedExtensions[] = {
  43         "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2",  // http://crbug.com/312900
  44         "D57DE394F36DC1C3220E7604C575D29C51A6C495",  // http://crbug.com/319444
  45         "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"   // http://crbug.com/371562
  46     };
  47     return SimpleFeature::IsIdInArray(
  48         extension->id(), kEnhancedExtensions, arraysize(kEnhancedExtensions));
  49   }
  50   return false;
  51 }
  52
  53 void ExternalComponentLoader::StartLoading() {
  54   prefs_.reset(new base::DictionaryValue());
  55   AddExternalExtension(extension_misc::kInAppPaymentsSupportAppId);
  56
  57   if (HotwordServiceFactory::IsHotwordAllowed(profile_))
  58     AddExternalExtension(extension_misc::kHotwordSharedModuleId);
  59
  60   {
  61     std::string extension_id;
  62     if (IsEnhancedBookmarksEnabled(&extension_id))
  63       AddExternalExtension(extension_id);
  64   }
  65
  66 #if defined(OS_CHROMEOS)
  67   {
  68     base::CommandLine* const command_line =
  69         base::CommandLine::ForCurrentProcess();
  70     if (!command_line->HasSwitch(chromeos::switches::kDisableNewZIPUnpacker))
  71       AddExternalExtension(extension_misc::kZIPUnpackerExtensionId);
  72   }
  73 #endif
  74
  75
  76 #if defined(ENABLE_MEDIA_ROUTER)
  77   if (switches::MediaRouterEnabled())
  78     AddExternalExtension(extension_misc::kMediaRouterStableExtensionId);
  79 #endif  // defined(ENABLE_MEDIA_ROUTER)
  80
  81 #if defined(ENABLE_APP_LIST) && defined(OS_CHROMEOS)
  82   std::string google_now_extension_id;
  83   if (GetGoogleNowExtensionId(&google_now_extension_id))
  84     AddExternalExtension(google_now_extension_id);
  85 #endif
  86
  87   LoadFinished();
  88 }
  89
  90 void ExternalComponentLoader::AddExternalExtension(
  91     const std::string& extension_id) {
  92   if (!IsComponentExtensionWhitelisted(extension_id))
  93     return;
  94
  95   prefs_->SetString(extension_id + ".external_update_url",
  96                     extension_urls::GetWebstoreUpdateUrl().spec());
  97 }
  98
  99 }  // namespace extensions