pref_model_associator.cc revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/prefs/pref_model_associator.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/auto_reset.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/json/json_reader.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/json/json_string_value_serializer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/location.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_service.h" 13868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/utf_string_conversions.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "chrome/browser/prefs/pref_service_syncable.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/chrome_notification_types.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/pref_names.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sync/api/sync_change.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sync/api/sync_error_factory.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sync/protocol/preference_specifics.pb.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sync/protocol/sync.pb.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using syncer::PREFERENCES; 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)using syncer::PRIORITY_PREFERENCES; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)namespace { 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 28c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)const sync_pb::PreferenceSpecifics& GetSpecifics(const syncer::SyncData& pref) { 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(pref.GetDataType() == syncer::PREFERENCES || 30c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) pref.GetDataType() == syncer::PRIORITY_PREFERENCES); 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (pref.GetDataType() == syncer::PRIORITY_PREFERENCES) { 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return pref.GetSpecifics().priority_preference().preference(); 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } else { 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return pref.GetSpecifics().preference(); 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)sync_pb::PreferenceSpecifics* GetMutableSpecifics( 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const syncer::ModelType type, 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) sync_pb::EntitySpecifics* specifics) { 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (type == syncer::PRIORITY_PREFERENCES) { 42c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!specifics->has_preference()); 43c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return specifics->mutable_priority_preference()->mutable_preference(); 44c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } else { 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!specifics->has_priority_preference()); 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return specifics->mutable_preference(); 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 52c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)PrefModelAssociator::PrefModelAssociator(syncer::ModelType type) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : models_associated_(false), 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) processing_syncer_changes_(false), 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) pref_service_(NULL), 56c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) type_(type) { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 58c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(type_ == PREFERENCES || type_ == PRIORITY_PREFERENCES); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefModelAssociator::~PrefModelAssociator() { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_ = NULL; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefModelAssociator::InitPrefAndAssociate( 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const syncer::SyncData& sync_pref, 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& pref_name, 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChangeList* sync_changes) { 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Value* user_pref_value = pref_service_->GetUserPrefValue( 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pref_name.c_str()); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "Associating preference " << pref_name; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (sync_pref.IsValid()) { 75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const sync_pb::PreferenceSpecifics& preference = GetSpecifics(sync_pref); 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(pref_name, preference.name()); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::JSONReader reader; 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<Value> sync_value(reader.ReadToValue(preference.value())); 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!sync_value.get()) { 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to deserialize preference value: " 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << reader.GetErrorMessage(); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (user_pref_value) { 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // We have both server and local values. Merge them. 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<Value> new_value( 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) MergePreference(pref_name, *user_pref_value, *sync_value)); 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Update the local preference based on what we got from the 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // sync server. Note: this only updates the user value store, which is 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // ignored if the preference is policy controlled. 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (new_value->IsType(Value::TYPE_NULL)) { 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(WARNING) << "Sync has null value for pref " << pref_name.c_str(); 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pref_service_->ClearPref(pref_name.c_str()); 972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (!new_value->IsType(user_pref_value->GetType())) { 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(WARNING) << "Synced value for " << preference.name() 992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << " is of type " << new_value->GetType() 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << " which doesn't match pref type " 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << user_pref_value->GetType(); 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (!user_pref_value->Equals(new_value.get())) { 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pref_service_->Set(pref_name.c_str(), *new_value); 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // If the merge resulted in an updated value, inform the syncer. 1072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!sync_value->Equals(new_value.get())) { 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) syncer::SyncData sync_data; 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!CreatePrefSyncData(pref_name, *new_value, &sync_data)) { 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "Failed to update preference."; 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) sync_changes->push_back( 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) syncer::SyncChange(FROM_HERE, 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) syncer::SyncChange::ACTION_UPDATE, 1162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) sync_data)); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (!sync_value->IsType(Value::TYPE_NULL)) { 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Only a server value exists. Just set the local user value. 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pref_service_->Set(pref_name.c_str(), *sync_value); 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else { 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(WARNING) << "Sync has null value for pref " << pref_name.c_str(); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (user_pref_value) { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The server does not know about this preference and should be added 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to the syncer's database. 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncData sync_data; 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!CreatePrefSyncData(pref_name, *user_pref_value, &sync_data)) { 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to update preference."; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_changes->push_back( 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChange(FROM_HERE, 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChange::ACTION_ADD, 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_data)); 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This pref does not have a sync value but also does not have a user 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // controlled value (either it's a default value or it's policy controlled, 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // either way it's not interesting). We can ignore it. Once it gets changed, 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we'll send the new user controlled value to the syncer. 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make sure we add it to our list of synced preferences so we know what 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the server is aware of. 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) synced_preferences_.insert(pref_name); 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)syncer::SyncMergeResult PrefModelAssociator::MergeDataAndStartSyncing( 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::ModelType type, 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const syncer::SyncDataList& initial_sync_data, 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<syncer::SyncChangeProcessor> sync_processor, 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<syncer::SyncErrorFactory> sync_error_factory) { 155c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK_EQ(type_, type); 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(pref_service_); 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!sync_processor_.get()); 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(sync_processor.get()); 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(sync_error_factory.get()); 1612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) syncer::SyncMergeResult merge_result(type); 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_processor_ = sync_processor.Pass(); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_error_factory_ = sync_error_factory.Pass(); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChangeList new_changes; 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::set<std::string> remaining_preferences = registered_preferences_; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Go through and check for all preferences we care about that sync already 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // knows about. 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (syncer::SyncDataList::const_iterator sync_iter = 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) initial_sync_data.begin(); 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_iter != initial_sync_data.end(); 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++sync_iter) { 174c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK_EQ(type_, sync_iter->GetDataType()); 175c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 176c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const sync_pb::PreferenceSpecifics& preference = GetSpecifics(*sync_iter); 177c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const std::string& sync_pref_name = preference.name(); 178c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (remaining_preferences.count(sync_pref_name) == 0) { 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We're not syncing this preference locally, ignore the sync data. 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(zea): Eventually we want to be able to have the syncable service 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // reconstruct all sync data for it's datatype (therefore having 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GetAllSyncData be a complete representation). We should store this data 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // somewhere, even if we don't use it. 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) remaining_preferences.erase(sync_pref_name); 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InitPrefAndAssociate(*sync_iter, sync_pref_name, &new_changes); 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Go through and build sync data for any remaining preferences. 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (std::set<std::string>::iterator pref_name_iter = 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) remaining_preferences.begin(); 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_name_iter != remaining_preferences.end(); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++pref_name_iter) { 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InitPrefAndAssociate(syncer::SyncData(), *pref_name_iter, &new_changes); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Push updates to sync. 2012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) merge_result.set_error( 2022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) sync_processor_->ProcessSyncChanges(FROM_HERE, new_changes)); 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (merge_result.error().IsSet()) 2042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return merge_result; 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) models_associated_ = true; 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->OnIsSyncingChanged(); 2082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return merge_result; 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefModelAssociator::StopSyncing(syncer::ModelType type) { 212c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK_EQ(type_, type); 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) models_associated_ = false; 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_processor_.reset(); 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_error_factory_.reset(); 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->OnIsSyncingChanged(); 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<Value> PrefModelAssociator::MergePreference( 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& name, 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Value& local_value, 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Value& server_value) { 2232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (name == prefs::kURLsToRestoreOnStartup) { 2242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return scoped_ptr<Value>(MergeListValues(local_value, server_value)).Pass(); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (name == prefs::kContentSettingsPatternPairs) { 2282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return scoped_ptr<Value>( 2292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) MergeDictionaryValues(local_value, server_value)).Pass(); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If this is not a specially handled preference, server wins. 2332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return scoped_ptr<Value>(server_value.DeepCopy()).Pass(); 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefModelAssociator::CreatePrefSyncData( 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& name, 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Value& value, 239c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) syncer::SyncData* sync_data) const { 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (value.IsType(Value::TYPE_NULL)) { 2412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "Attempting to sync a null pref value for " << name; 2422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string serialized; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(zea): consider JSONWriter::Write since you don't have to check 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // failures to deserialize. 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) JSONStringValueSerializer json(&serialized); 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!json.Serialize(value)) { 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to serialize preference value."; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_pb::EntitySpecifics specifics; 255c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) sync_pb::PreferenceSpecifics* pref_specifics = 256c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetMutableSpecifics(type_, &specifics); 257c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_specifics->set_name(name); 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_specifics->set_value(serialized); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *sync_data = syncer::SyncData::CreateLocalData(name, name, specifics); 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Value* PrefModelAssociator::MergeListValues(const Value& from_value, 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Value& to_value) { 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (from_value.GetType() == Value::TYPE_NULL) 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return to_value.DeepCopy(); 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to_value.GetType() == Value::TYPE_NULL) 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return from_value.DeepCopy(); 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(from_value.GetType() == Value::TYPE_LIST); 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(to_value.GetType() == Value::TYPE_LIST); 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const ListValue& from_list_value = static_cast<const ListValue&>(from_value); 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const ListValue& to_list_value = static_cast<const ListValue&>(to_value); 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ListValue* result = to_list_value.DeepCopy(); 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (ListValue::const_iterator i = from_list_value.begin(); 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) i != from_list_value.end(); ++i) { 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Value* value = (*i)->DeepCopy(); 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result->AppendIfNotPresent(value); 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Value* PrefModelAssociator::MergeDictionaryValues( 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Value& from_value, 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Value& to_value) { 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (from_value.GetType() == Value::TYPE_NULL) 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return to_value.DeepCopy(); 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to_value.GetType() == Value::TYPE_NULL) 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return from_value.DeepCopy(); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(from_value.GetType(), Value::TYPE_DICTIONARY); 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(to_value.GetType(), Value::TYPE_DICTIONARY); 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const DictionaryValue& from_dict_value = 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<const DictionaryValue&>(from_value); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const DictionaryValue& to_dict_value = 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<const DictionaryValue&>(to_value); 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DictionaryValue* result = to_dict_value.DeepCopy(); 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (DictionaryValue::Iterator it(from_dict_value); !it.IsAtEnd(); 3022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) it.Advance()) { 3032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Value* from_value = &it.value(); 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Value* to_key_value; 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (result->GetWithoutPathExpansion(it.key(), &to_key_value)) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to_key_value->GetType() == Value::TYPE_DICTIONARY) { 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Value* merged_value = MergeDictionaryValues(*from_value, *to_key_value); 3082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) result->SetWithoutPathExpansion(it.key(), merged_value); 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note that for all other types we want to preserve the "to" 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // values so we do nothing here. 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) result->SetWithoutPathExpansion(it.key(), from_value->DeepCopy()); 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Note: This will build a model of all preferences registered as syncable 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// with user controlled data. We do not track any information for preferences 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// not registered locally as syncable and do not inform the syncer of 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// non-user controlled preferences. 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)syncer::SyncDataList PrefModelAssociator::GetAllSyncData( 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::ModelType type) 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const { 326c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK_EQ(type_, type); 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncDataList current_data; 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (PreferenceSet::const_iterator iter = synced_preferences_.begin(); 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != synced_preferences_.end(); 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter) { 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string name = *iter; 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PrefService::Preference* pref = 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->FindPreference(name.c_str()); 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(pref); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!pref->IsUserControlled() || pref->IsDefaultValue()) 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; // This is not data we care about. 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(zea): plumb a way to read the user controlled value. 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncData sync_data; 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!CreatePrefSyncData(name, *pref->GetValue(), &sync_data)) 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) current_data.push_back(sync_data); 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return current_data; 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)syncer::SyncError PrefModelAssociator::ProcessSyncChanges( 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const tracked_objects::Location& from_here, 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const syncer::SyncChangeList& change_list) { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!models_associated_) { 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncError error(FROM_HERE, 351eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch syncer::SyncError::DATATYPE_ERROR, 352eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch "Models not yet associated.", 353eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch PREFERENCES); 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return error; 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::AutoReset<bool> processing_changes(&processing_syncer_changes_, true); 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChangeList::const_iterator iter; 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (iter = change_list.begin(); iter != change_list.end(); ++iter) { 359c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK_EQ(type_, iter->sync_data().GetDataType()); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string name; 362c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const sync_pb::PreferenceSpecifics& pref_specifics = 363c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetSpecifics(iter->sync_data()); 364c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<Value> value(ReadPreferenceSpecifics(pref_specifics, 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &name)); 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (iter->change_type() == syncer::SyncChange::ACTION_DELETE) { 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We never delete preferences. 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED() << "Attempted to process sync delete change for " << name 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << ". Skipping."; 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Skip values we can't deserialize. 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(zea): consider taking some further action such as erasing the bad 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // data. 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!value.get()) 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // It is possible that we may receive a change to a preference we do not 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // want to sync. For example if the user is syncing a Mac client and a 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Windows client, the Windows client does not support 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // kConfirmToQuitEnabled. Ignore updates from these preferences. 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* pref_name = name.c_str(); 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!IsPrefRegistered(pref_name)) 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PrefService::Preference* pref = 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->FindPreference(pref_name); 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(pref); 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This will only modify the user controlled value store, which takes 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // priority over the default value but is ignored if the preference is 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // policy controlled. 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->Set(pref_name, *value); 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Keep track of any newly synced preferences. 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (iter->change_type() == syncer::SyncChange::ACTION_ADD) { 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) synced_preferences_.insert(name); 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return syncer::SyncError(); 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Value* PrefModelAssociator::ReadPreferenceSpecifics( 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const sync_pb::PreferenceSpecifics& preference, 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* name) { 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::JSONReader reader; 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<Value> value(reader.ReadToValue(preference.value())); 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!value.get()) { 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string err = "Failed to deserialize preference value: " + 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reader.GetErrorMessage(); 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << err; 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *name = preference.name(); 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return value.release(); 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 42190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)bool PrefModelAssociator::IsPrefSynced(const std::string& name) const { 42290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return synced_preferences_.find(name) != synced_preferences_.end(); 42390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 42490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)std::set<std::string> PrefModelAssociator::registered_preferences() const { 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return registered_preferences_; 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefModelAssociator::RegisterPref(const char* name) { 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!models_associated_ && registered_preferences_.count(name) == 0); 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) registered_preferences_.insert(name); 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefModelAssociator::IsPrefRegistered(const char* name) { 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return registered_preferences_.count(name) > 0; 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefModelAssociator::ProcessPrefChange(const std::string& name) { 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (processing_syncer_changes_) 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; // These are changes originating from us, ignore. 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We only process changes if we've already associated models. 4435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!models_associated_) 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PrefService::Preference* preference = 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_->FindPreference(name.c_str()); 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!preference) 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!IsPrefRegistered(name.c_str())) 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; // We are not syncing this preference. 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChangeList changes; 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!preference->IsUserModifiable()) { 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the preference is no longer user modifiable, it must now be controlled 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // by policy, whose values we do not sync. Just return. If the preference 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // stops being controlled by policy, it will revert back to the user value 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (which we continue to update with sync changes). 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::AutoReset<bool> processing_changes(&processing_syncer_changes_, true); 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (synced_preferences_.count(name) == 0) { 4675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Not in synced_preferences_ means no synced data. InitPrefAndAssociate(..) 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // will determine if we care about its data (e.g. if it has a default value 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // and hasn't been changed yet we don't) and take care syncing any new data. 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InitPrefAndAssociate(syncer::SyncData(), name, &changes); 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We are already syncing this preference, just update it's sync node. 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncData sync_data; 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!CreatePrefSyncData(name, *preference->GetValue(), &sync_data)) { 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to update preference."; 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) changes.push_back( 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChange(FROM_HERE, 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncChange::ACTION_UPDATE, 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_data)); 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) syncer::SyncError error = 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_processor_->ProcessSyncChanges(FROM_HERE, changes); 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void PrefModelAssociator::SetPrefService(PrefServiceSyncable* pref_service) { 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(pref_service_ == NULL); 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pref_service_ = pref_service; 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 492