| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_PREFS_PROFILE_PREF_STORE_MANAGER_H_ |
| #define CHROME_BROWSER_PREFS_PROFILE_PREF_STORE_MANAGER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "chrome/browser/prefs/pref_hash_filter.h" |
| |
| class PersistentPrefStore; |
| class PrefHashStore; |
| class PrefService; |
| class TrackedPreferenceValidationDelegate; |
| |
| namespace base { |
| class DictionaryValue; |
| class SequencedTaskRunner; |
| } // namespace base |
| |
| namespace user_prefs { |
| class PrefRegistrySyncable; |
| } // namespace user_prefs |
| |
| class PrefRegistrySimple; |
| |
| // Provides a facade through which the user preference store may be accessed and |
| // managed. |
| class ProfilePrefStoreManager { |
| public: |
| // Instantiates a ProfilePrefStoreManager with the configuration required to |
| // manage the user preferences of the profile at |profile_path|. |
| // |tracking_configuration| is used for preference tracking. |
| // |reporting_ids_count| is the count of all possible tracked preference IDs |
| // (possibly greater than |tracking_configuration.size()|). |
| // |seed| and |device_id| are used to track preference value changes and must |
| // be the same on each launch in order to verify loaded preference values. |
| ProfilePrefStoreManager( |
| const base::FilePath& profile_path, |
| const std::vector<PrefHashFilter::TrackedPreferenceMetadata>& |
| tracking_configuration, |
| size_t reporting_ids_count, |
| const std::string& seed, |
| const std::string& device_id, |
| PrefService* local_state); |
| |
| ~ProfilePrefStoreManager(); |
| |
| static const bool kPlatformSupportsPreferenceTracking; |
| |
| // Register local state prefs used by the profile preferences system. |
| static void RegisterPrefs(PrefRegistrySimple* registry); |
| |
| // Register user prefs used by the profile preferences system. |
| static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry); |
| |
| // Determines the user preferences filename for the profile at |profile_path|. |
| static base::FilePath GetPrefFilePathFromProfilePath( |
| const base::FilePath& profile_path); |
| |
| // Deletes stored hashes for all profiles from |local_state|. |
| static void ResetAllPrefHashStores(PrefService* local_state); |
| |
| // Retrieves the time of the last preference reset event, if any, for |
| // |pref_service|. Assumes that |pref_service| is backed by a PrefStore that |
| // was built by ProfilePrefStoreManager. |
| // If no reset has occurred, returns a null |Time|. |
| static base::Time GetResetTime(PrefService* pref_service); |
| |
| // Clears the time of the last preference reset event, if any, for |
| // |pref_service|. Assumes that |pref_service| is backed by a PrefStore that |
| // was built by ProfilePrefStoreManager. |
| static void ClearResetTime(PrefService* pref_service); |
| |
| // Creates a PersistentPrefStore providing access to the user preferences of |
| // the managed profile. If |on_reset| is provided, it will be invoked if a |
| // reset occurs as a result of loading the profile's prefs. |
| // An optional |validation_delegate| will be notified |
| // of the status of each tracked preference as they are checked. |
| PersistentPrefStore* CreateProfilePrefStore( |
| const scoped_refptr<base::SequencedTaskRunner>& io_task_runner, |
| const base::Closure& on_reset_on_load, |
| TrackedPreferenceValidationDelegate* validation_delegate); |
| |
| // Initializes the preferences for the managed profile with the preference |
| // values in |master_prefs|. Acts synchronously, including blocking IO. |
| // Returns true on success. |
| bool InitializePrefsFromMasterPrefs( |
| const base::DictionaryValue& master_prefs); |
| |
| // Creates a single-file PrefStore as was used in M34 and earlier. Used only |
| // for testing migration. |
| PersistentPrefStore* CreateDeprecatedCombinedProfilePrefStore( |
| const scoped_refptr<base::SequencedTaskRunner>& io_task_runner); |
| |
| private: |
| // Returns a PrefHashStore for the managed profile. Should only be called |
| // if |kPlatformSupportsPreferenceTracking|. |use_super_mac| determines |
| // whether the returned object will calculate, store, and validate super MACs |
| // (and, by extension, accept non-null newly protected preferences as |
| // TrustedInitialized). |
| scoped_ptr<PrefHashStore> GetPrefHashStore(bool use_super_mac); |
| |
| const base::FilePath profile_path_; |
| const std::vector<PrefHashFilter::TrackedPreferenceMetadata> |
| tracking_configuration_; |
| const size_t reporting_ids_count_; |
| const std::string seed_; |
| const std::string device_id_; |
| PrefService* local_state_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ProfilePrefStoreManager); |
| }; |
| |
| #endif // CHROME_BROWSER_PREFS_PROFILE_PREF_STORE_MANAGER_H_ |