src/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/sha1.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/search/hotword_service.h"
  12 #include "chrome/browser/search/hotword_service_factory.h"
  13 #include "chrome/browser/signin/signin_manager_factory.h"
  14 #include "chrome/common/extensions/extension_constants.h"
  15 #include "components/signin/core/browser/signin_manager.h"
  16 #include "extensions/common/extension.h"
  17 #include "extensions/common/extension_urls.h"
  18
  19 #if defined(OS_CHROMEOS)
  20 #include "base/command_line.h"
  21 #include "chromeos/chromeos_switches.h"
  22 #endif
  23
  24 namespace extensions {
  25
  26 ExternalComponentLoader::ExternalComponentLoader(Profile* profile)
  27     : profile_(profile) {
  28 }
  29
  30 ExternalComponentLoader::~ExternalComponentLoader() {}
  31
  32 // static
  33 bool ExternalComponentLoader::IsModifiable(const Extension* extension) {
  34   if (extension->location() == Manifest::EXTERNAL_COMPONENT) {
  35     static const char* const enhanced_extension_hashes[] = {
  36         "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2",  // http://crbug.com/312900
  37         "D57DE394F36DC1C3220E7604C575D29C51A6C495",  // http://crbug.com/319444
  38         "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"   // http://crbug.com/371562
  39     };
  40     std::string hash = base::SHA1HashString(extension->id());
  41     hash = base::HexEncode(hash.c_str(), hash.length());
  42     for (size_t i = 0; i < arraysize(enhanced_extension_hashes); i++)
  43       if (hash == enhanced_extension_hashes[i])
  44         return true;
  45   }
  46   return false;
  47 }
  48
  49 void ExternalComponentLoader::StartLoading() {
  50   prefs_.reset(new base::DictionaryValue());
  51   std::string app_id = extension_misc::kInAppPaymentsSupportAppId;
  52   prefs_->SetString(app_id + ".external_update_url",
  53                     extension_urls::GetWebstoreUpdateUrl().spec());
  54
  55   if (HotwordServiceFactory::IsHotwordAllowed(profile_)) {
  56     std::string hotword_id = extension_misc::kHotwordExtensionId;
  57     if (HotwordService::IsExperimentalHotwordingEnabled()) {
  58       hotword_id = extension_misc::kHotwordSharedModuleId;
  59     }
  60     prefs_->SetString(hotword_id + ".external_update_url",
  61                       extension_urls::GetWebstoreUpdateUrl().spec());
  62   }
  63
  64   InitBookmarksExperimentState(profile_);
  65
  66   {
  67     std::string extension_id;
  68     if (GetBookmarksExperimentExtensionID(profile_->GetPrefs(),
  69                                           &extension_id) &&
  70         !extension_id.empty()) {
  71       prefs_->SetString(extension_id + ".external_update_url",
  72                         extension_urls::GetWebstoreUpdateUrl().spec());
  73     }
  74   }
  75
  76 #if defined(OS_CHROMEOS)
  77   {
  78     CommandLine* const command_line = CommandLine::ForCurrentProcess();
  79     if (!command_line->HasSwitch(chromeos::switches::kDisableNewZIPUnpacker)) {
  80       const std::string extension_id = extension_misc::kZIPUnpackerExtensionId;
  81       prefs_->SetString(extension_id + ".external_update_url",
  82                         extension_urls::GetWebstoreUpdateUrl().spec());
  83     }
  84   }
  85 #endif
  86
  87   LoadFinished();
  88 }
  89
  90 }  // namespace extensions