src/chrome/browser/content_settings/content_settings_policy_provider.h

   1 // Copyright (c) 2011 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 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_
   6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_
   7
   8 // A content settings provider that takes its settings out of policies.
   9
  10 #include <vector>
  11
  12 #include "base/basictypes.h"
  13 #include "base/prefs/pref_change_registrar.h"
  14 #include "base/synchronization/lock.h"
  15 #include "components/content_settings/core/browser/content_settings_observable_provider.h"
  16 #include "components/content_settings/core/browser/content_settings_origin_identifier_value_map.h"
  17
  18 class PrefService;
  19
  20 namespace user_prefs {
  21 class PrefRegistrySyncable;
  22 }
  23
  24 namespace content_settings {
  25
  26 // PolicyProvider that provides managed content-settings.
  27 class PolicyProvider : public ObservableProvider {
  28  public:
  29   explicit PolicyProvider(PrefService* prefs);
  30   virtual ~PolicyProvider();
  31   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  32
  33   // ProviderInterface implementations.
  34   virtual RuleIterator* GetRuleIterator(
  35       ContentSettingsType content_type,
  36       const ResourceIdentifier& resource_identifier,
  37       bool incognito) const OVERRIDE;
  38
  39   virtual bool SetWebsiteSetting(
  40       const ContentSettingsPattern& primary_pattern,
  41       const ContentSettingsPattern& secondary_pattern,
  42       ContentSettingsType content_type,
  43       const ResourceIdentifier& resource_identifier,
  44       base::Value* value) OVERRIDE;
  45
  46   virtual void ClearAllContentSettingsRules(
  47       ContentSettingsType content_type) OVERRIDE;
  48
  49   virtual void ShutdownOnUIThread() OVERRIDE;
  50
  51  private:
  52   // Reads the policy managed default settings.
  53   void ReadManagedDefaultSettings();
  54
  55   // Callback for preference changes.
  56   void OnPreferenceChanged(const std::string& pref_name);
  57
  58   // Reads the policy controlled default settings for a specific content type.
  59   void UpdateManagedDefaultSetting(ContentSettingsType content_type);
  60
  61   void ReadManagedContentSettings(bool overwrite);
  62
  63   void GetContentSettingsFromPreferences(OriginIdentifierValueMap* rules);
  64
  65   void GetAutoSelectCertificateSettingsFromPreferences(
  66       OriginIdentifierValueMap* value_map);
  67
  68   void ReadManagedContentSettingsTypes(ContentSettingsType content_type);
  69
  70   OriginIdentifierValueMap value_map_;
  71
  72   PrefService* prefs_;
  73
  74   PrefChangeRegistrar pref_change_registrar_;
  75
  76   // Used around accesses to the |value_map_| object to guarantee
  77   // thread safety.
  78   mutable base::Lock lock_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(PolicyProvider);
  81 };
  82
  83 }  // namespace content_settings
  84
  85 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_