1 // Copyright 2018 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 COMPONENTS_CONSENT_AUDITOR_CONSENT_SYNC_BRIDGE_IMPL_H_ 6 #define COMPONENTS_CONSENT_AUDITOR_CONSENT_SYNC_BRIDGE_IMPL_H_ 7 8 #include <stdint.h> 9 10 #include <memory> 11 #include <string> 12 #include <vector> 13 14 #include "base/macros.h" 15 #include "base/memory/weak_ptr.h" 16 #include "base/optional.h" 17 #include "components/consent_auditor/consent_sync_bridge.h" 18 #include "components/sync/model/model_type_change_processor.h" 19 #include "components/sync/model/model_type_store.h" 20 #include "components/sync/model/model_type_sync_bridge.h" 21 22 namespace consent_auditor { 23 24 class ConsentSyncBridgeImpl : public ConsentSyncBridge, 25 public syncer::ModelTypeSyncBridge { 26 public: 27 ConsentSyncBridgeImpl( 28 syncer::OnceModelTypeStoreFactory store_factory, 29 std::unique_ptr<syncer::ModelTypeChangeProcessor> change_processor); 30 ~ConsentSyncBridgeImpl() override; 31 32 // ModelTypeSyncBridge implementation. 33 std::unique_ptr<syncer::MetadataChangeList> CreateMetadataChangeList() 34 override; 35 base::Optional<syncer::ModelError> MergeSyncData( 36 std::unique_ptr<syncer::MetadataChangeList> metadata_change_list, 37 syncer::EntityChangeList entity_data) override; 38 base::Optional<syncer::ModelError> ApplySyncChanges( 39 std::unique_ptr<syncer::MetadataChangeList> metadata_change_list, 40 syncer::EntityChangeList entity_changes) override; 41 void GetData(StorageKeyList storage_keys, DataCallback callback) override; 42 void GetAllDataForDebugging(DataCallback callback) override; 43 std::string GetClientTag(const syncer::EntityData& entity_data) override; 44 std::string GetStorageKey(const syncer::EntityData& entity_data) override; 45 void ApplyStopSyncChanges(std::unique_ptr<syncer::MetadataChangeList> 46 delete_metadata_change_list) override; 47 48 // ConsentSyncBridge implementation. 49 void RecordConsent( 50 std::unique_ptr<sync_pb::UserConsentSpecifics> specifics) override; 51 base::WeakPtr<syncer::ModelTypeControllerDelegate> GetControllerDelegate() 52 override; 53 54 static std::string GetStorageKeyFromSpecificsForTest( 55 const sync_pb::UserConsentSpecifics& specifics); 56 std::unique_ptr<syncer::ModelTypeStore> StealStoreForTest(); 57 58 private: 59 void RecordConsentImpl( 60 std::unique_ptr<sync_pb::UserConsentSpecifics> specifics); 61 // Record events in the deferred queue and clear the queue. 62 void ProcessQueuedEvents(); 63 64 void OnStoreCreated(const base::Optional<syncer::ModelError>& error, 65 std::unique_ptr<syncer::ModelTypeStore> store); 66 void OnReadAllMetadata(const base::Optional<syncer::ModelError>& error, 67 std::unique_ptr<syncer::MetadataBatch> metadata_batch); 68 void OnCommit(const base::Optional<syncer::ModelError>& error); 69 void OnReadData( 70 DataCallback callback, 71 const base::Optional<syncer::ModelError>& error, 72 std::unique_ptr<syncer::ModelTypeStore::RecordList> data_records, 73 std::unique_ptr<syncer::ModelTypeStore::IdList> missing_id_list); 74 void OnReadAllData( 75 DataCallback callback, 76 const base::Optional<syncer::ModelError>& error, 77 std::unique_ptr<syncer::ModelTypeStore::RecordList> data_records); 78 79 // Resubmit all the consents persisted in the store to sync consents, which 80 // were preserved when sync was disabled. This may resubmit entities that the 81 // processor already knows about (i.e. with metadata), but it is allowed. 82 void ReadAllDataAndResubmit(); 83 void OnReadAllDataToResubmit( 84 const base::Optional<syncer::ModelError>& error, 85 std::unique_ptr<syncer::ModelTypeStore::RecordList> data_records); 86 87 // Persistent storage for in flight consents. Should remain quite small, as we 88 // delete upon commit confirmation. May contain consents without metadata 89 // (e.g. persisted when sync was disabled). 90 std::unique_ptr<syncer::ModelTypeStore> store_; 91 92 // Used to store consents while the store or change processor are not 93 // ready. 94 std::vector<std::unique_ptr<sync_pb::UserConsentSpecifics>> 95 deferred_consents_while_initializing_; 96 97 base::WeakPtrFactory<ConsentSyncBridgeImpl> weak_ptr_factory_{this}; 98 99 DISALLOW_COPY_AND_ASSIGN(ConsentSyncBridgeImpl); 100 }; 101 102 } // namespace consent_auditor 103 104 #endif // COMPONENTS_CONSENT_AUDITOR_CONSENT_SYNC_BRIDGE_IMPL_H_ 105