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/sha1.h"
   9 #include "base/strings/string_number_conversions.h"
  10 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
  11 #include "chrome/browser/browser_process.h"
  12 #include "chrome/browser/search/hotword_service_factory.h"
  13 #include "chrome/browser/signin/signin_manager_factory.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/common/extensions/extension_constants.h"
  16 #include "components/signin/core/browser/signin_manager.h"
  17 #include "extensions/common/extension.h"
  18 #include "extensions/common/extension_urls.h"
  19
  20 namespace extensions {
  21
  22 ExternalComponentLoader::ExternalComponentLoader(Profile* profile)
  23     : profile_(profile) {
  24 }
  25
  26 ExternalComponentLoader::~ExternalComponentLoader() {}
  27
  28 // static
  29 bool ExternalComponentLoader::IsModifiable(const Extension* extension) {
  30   if (extension->location() == Manifest::EXTERNAL_COMPONENT) {
  31     static const char* enhanced_extension_hashes[] = {
  32         "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2",  // http://crbug.com/312900
  33         "D57DE394F36DC1C3220E7604C575D29C51A6C495",  // http://crbug.com/319444
  34         "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"   // http://crbug.com/371562
  35     };
  36     std::string hash = base::SHA1HashString(extension->id());
  37     hash = base::HexEncode(hash.c_str(), hash.length());
  38     for (size_t i = 0; i < arraysize(enhanced_extension_hashes); i++)
  39       if (hash == enhanced_extension_hashes[i])
  40         return true;
  41   }
  42   return false;
  43 }
  44
  45 void ExternalComponentLoader::StartLoading() {
  46   prefs_.reset(new base::DictionaryValue());
  47   std::string appId = extension_misc::kInAppPaymentsSupportAppId;
  48   prefs_->SetString(appId + ".external_update_url",
  49                     extension_urls::GetWebstoreUpdateUrl().spec());
  50
  51   if (HotwordServiceFactory::IsHotwordAllowed(profile_)) {
  52     std::string hotwordId = extension_misc::kHotwordExtensionId;
  53     CommandLine* command_line = CommandLine::ForCurrentProcess();
  54     if (command_line->HasSwitch(switches::kEnableExperimentalHotwording)) {
  55       hotwordId = extension_misc::kHotwordSharedModuleId;
  56     }
  57     prefs_->SetString(hotwordId + ".external_update_url",
  58                       extension_urls::GetWebstoreUpdateUrl().spec());
  59   }
  60
  61   InitBookmarksExperimentState(profile_);
  62
  63   std::string ext_id;
  64   if (GetBookmarksExperimentExtensionID(profile_->GetPrefs(), &ext_id) &&
  65       !ext_id.empty()) {
  66     prefs_->SetString(ext_id + ".external_update_url",
  67                       extension_urls::GetWebstoreUpdateUrl().spec());
  68   }
  69
  70   LoadFinished();
  71 }
  72
  73 }  // namespace extensions