chrome/browser/plugins/plugins_resource_service.cc

   1 // Copyright 2012 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/plugins/plugins_resource_service.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/prefs/pref_registry_simple.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "chrome/browser/browser_process.h"
  12 #include "chrome/browser/plugins/plugin_finder.h"
  13 #include "chrome/common/chrome_switches.h"
  14 #include "chrome/common/pref_names.h"
  15 #include "components/safe_json/safe_json_parser.h"
  16 #include "url/gurl.h"
  17
  18 namespace {
  19
  20 // Delay on first fetch so we don't interfere with startup.
  21 const int kStartResourceFetchDelayMs = 60 * 1000;
  22
  23 // Delay between calls to update the cache 1 day and 2 minutes in testing mode.
  24 const int kCacheUpdateDelayMs = 24 * 60 * 60 * 1000;
  25
  26 const char kPluginsServerUrl[] =
  27     "https://www.gstatic.com/chrome/config/plugins_2/";
  28
  29 GURL GetPluginsServerURL() {
  30   std::string filename;
  31 #if defined(OS_WIN)
  32   filename = "plugins_win.json";
  33 #elif defined(OS_LINUX)
  34   filename = "plugins_linux.json";
  35 #elif defined(OS_MACOSX)
  36   filename = "plugins_mac.json";
  37 #else
  38 #error Unknown platform
  39 #endif
  40
  41   return GURL(kPluginsServerUrl + filename);
  42 }
  43
  44 }  // namespace
  45
  46 PluginsResourceService::PluginsResourceService(PrefService* local_state)
  47     : web_resource::WebResourceService(
  48           local_state,
  49           GetPluginsServerURL(),
  50           std::string(),
  51           prefs::kPluginsResourceCacheUpdate,
  52           kStartResourceFetchDelayMs,
  53           kCacheUpdateDelayMs,
  54           g_browser_process->system_request_context(),
  55           switches::kDisableBackgroundNetworking,
  56           base::Bind(safe_json::SafeJsonParser::Parse)) {}
  57
  58 void PluginsResourceService::Init() {
  59   const base::DictionaryValue* metadata =
  60       prefs_->GetDictionary(prefs::kPluginsMetadata);
  61   PluginFinder::GetInstance()->ReinitializePlugins(metadata);
  62   StartAfterDelay();
  63 }
  64
  65 PluginsResourceService::~PluginsResourceService() {
  66 }
  67
  68 // static
  69 void PluginsResourceService::RegisterPrefs(PrefRegistrySimple* registry) {
  70   registry->RegisterDictionaryPref(prefs::kPluginsMetadata,
  71                                    new base::DictionaryValue());
  72   registry->RegisterStringPref(prefs::kPluginsResourceCacheUpdate, "0");
  73 }
  74
  75 void PluginsResourceService::Unpack(const base::DictionaryValue& parsed_json) {
  76   prefs_->Set(prefs::kPluginsMetadata, parsed_json);
  77   PluginFinder::GetInstance()->ReinitializePlugins(&parsed_json);
  78 }