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 // Maps [requesting_origin, embedder] to content settings. Written on the UI 6 // thread and read on any thread. One instance per profile. This is based on 7 // HostContentSettingsMap but differs significantly in two aspects: 8 // - It maps [requesting_origin.GetOrigin(), embedder.GetOrigin()] => setting 9 // rather than host => setting. 10 // - It manages only Geolocation. 11 12 #ifndef CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ 13 #define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ 14 #pragma once 15 16 #include <map> 17 18 #include "base/basictypes.h" 19 #include "base/memory/ref_counted.h" 20 #include "chrome/browser/prefs/pref_change_registrar.h" 21 #include "chrome/common/content_settings.h" 22 #include "content/common/notification_observer.h" 23 #include "content/common/notification_registrar.h" 24 #include "googleurl/src/gurl.h" 25 26 class ContentSettingsDetails; 27 class DictionaryValue; 28 class PrefService; 29 class Profile; 30 31 class GeolocationContentSettingsMap 32 : public base::RefCountedThreadSafe<GeolocationContentSettingsMap>, 33 public NotificationObserver { 34 public: 35 typedef std::map<GURL, ContentSetting> OneOriginSettings; 36 typedef std::map<GURL, OneOriginSettings> AllOriginsSettings; 37 38 explicit GeolocationContentSettingsMap(Profile* profile); 39 40 virtual ~GeolocationContentSettingsMap(); 41 42 static void RegisterUserPrefs(PrefService* prefs); 43 44 // Returns the default setting. 45 // 46 // This should only be called on the UI thread. 47 ContentSetting GetDefaultContentSetting() const; 48 49 // Returns true if the content setting is managed (set by a policy). 50 bool IsDefaultContentSettingManaged() const; 51 52 // Returns a single ContentSetting which applies to the given |requesting_url| 53 // when embedded in a top-level page from |embedding_url|. To determine the 54 // setting for a top-level page, as opposed to a frame embedded in a page, 55 // pass the page's URL for both arguments. 56 // 57 // This should only be called on the UI thread. 58 // Both arguments should be valid GURLs. 59 ContentSetting GetContentSetting(const GURL& requesting_url, 60 const GURL& embedding_url) const; 61 62 // Returns the settings for all origins with any non-default settings. 63 // 64 // This should only be called on the UI thread. 65 AllOriginsSettings GetAllOriginsSettings() const; 66 67 // Sets the default setting. 68 // 69 // This should only be called on the UI thread. 70 void SetDefaultContentSetting(ContentSetting setting); 71 72 // Sets the content setting for a particular (requesting origin, embedding 73 // origin) pair. If the embedding origin is the same as the requesting 74 // origin, this represents the setting used when the requesting origin is 75 // itself the top-level page. If |embedder| is the empty GURL, |setting| 76 // becomes the default setting for the requesting origin when embedded on any 77 // page that does not have an explicit setting. Passing 78 // CONTENT_SETTING_DEFAULT for |setting| effectively removes that setting and 79 // allows future requests to return the all-embedders or global defaults (as 80 // applicable). 81 // 82 // This should only be called on the UI thread. |requesting_url| should be 83 // a valid GURL, and |embedding_url| should be valid or empty. 84 void SetContentSetting(const GURL& requesting_url, 85 const GURL& embedding_url, 86 ContentSetting setting); 87 88 // Resets all settings. 89 // 90 // This should only be called on the UI thread. 91 void ResetToDefault(); 92 93 // NotificationObserver implementation. 94 virtual void Observe(NotificationType type, 95 const NotificationSource& source, 96 const NotificationDetails& details); 97 98 private: 99 friend class base::RefCountedThreadSafe<GeolocationContentSettingsMap>; 100 101 // The default setting. 102 static const ContentSetting kDefaultSetting; 103 104 // Sends a CONTENT_SETTINGS_CHANGED notification. 105 void NotifyObservers(const ContentSettingsDetails& details); 106 107 void UnregisterObservers(); 108 109 // Sets the fields of |one_origin_settings| based on the values in 110 // |dictionary|. 111 static void GetOneOriginSettingsFromDictionary( 112 const DictionaryValue* dictionary, 113 OneOriginSettings* one_origin_settings); 114 115 // The profile we're associated with. 116 Profile* profile_; 117 118 // Registrar to register for PREF_CHANGED notifications. 119 PrefChangeRegistrar prefs_registrar_; 120 NotificationRegistrar notification_registrar_; 121 122 DISALLOW_COPY_AND_ASSIGN(GeolocationContentSettingsMap); 123 }; 124 125 #endif // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ 126