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| 1 // Copyright 2014 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 #include "components/sync_driver/generic_change_processor.h" | |
| 6 | |
| 7 #include <stddef.h> | |
| 8 | |
| 9 #include <algorithm> | |
| 10 #include <string> | |
| 11 #include <utility> | |
| 12 | |
| 13 #include "base/location.h" | |
| 14 #include "base/strings/string_number_conversions.h" | |
| 15 #include "base/strings/utf_string_conversions.h" | |
| 16 #include "base/threading/thread_task_runner_handle.h" | |
| 17 #include "components/sync/api/sync_change.h" | |
| 18 #include "components/sync/api/sync_error.h" | |
| 19 #include "components/sync/api/syncable_service.h" | |
| 20 #include "components/sync/base/unrecoverable_error_handler.h" | |
| 21 #include "components/sync/core/base_node.h" | |
| 22 #include "components/sync/core/change_record.h" | |
| 23 #include "components/sync/core/data_type_error_handler.h" | |
| 24 #include "components/sync/core/read_node.h" | |
| 25 #include "components/sync/core/read_transaction.h" | |
| 26 #include "components/sync/core/write_node.h" | |
| 27 #include "components/sync/core/write_transaction.h" | |
| 28 #include "components/sync/syncable/entry.h" // TODO(tim): Bug 123674. | |
| 29 #include "components/sync_driver/sync_api_component_factory.h" | |
| 30 #include "components/sync_driver/sync_client.h" | |
| 31 | |
| 32 namespace sync_driver { | |
| 33 | |
| 34 namespace { | |
| 35 | |
| 36 const int kContextSizeLimit = 1024; // Datatype context size limit. | |
| 37 | |
| 38 void SetNodeSpecifics(const sync_pb::EntitySpecifics& entity_specifics, | |
| 39 syncer::WriteNode* write_node) { | |
| 40 if (syncer::GetModelTypeFromSpecifics(entity_specifics) == | |
| 41 syncer::PASSWORDS) { | |
| 42 write_node->SetPasswordSpecifics( | |
| 43 entity_specifics.password().client_only_encrypted_data()); | |
| 44 } else { | |
| 45 write_node->SetEntitySpecifics(entity_specifics); | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 // Helper function to convert AttachmentId to AttachmentMetadataRecord. | |
| 50 sync_pb::AttachmentMetadataRecord AttachmentIdToRecord( | |
| 51 const syncer::AttachmentId& attachment_id) { | |
| 52 sync_pb::AttachmentMetadataRecord record; | |
| 53 *record.mutable_id() = attachment_id.GetProto(); | |
| 54 return record; | |
| 55 } | |
| 56 | |
| 57 // Replace |write_nodes|'s attachment ids with |attachment_ids|. | |
| 58 void SetAttachmentMetadata(const syncer::AttachmentIdList& attachment_ids, | |
| 59 syncer::WriteNode* write_node) { | |
| 60 DCHECK(write_node); | |
| 61 sync_pb::AttachmentMetadata attachment_metadata; | |
| 62 std::transform( | |
| 63 attachment_ids.begin(), | |
| 64 attachment_ids.end(), | |
| 65 RepeatedFieldBackInserter(attachment_metadata.mutable_record()), | |
| 66 AttachmentIdToRecord); | |
| 67 write_node->SetAttachmentMetadata(attachment_metadata); | |
| 68 } | |
| 69 | |
| 70 syncer::SyncData BuildRemoteSyncData( | |
| 71 int64_t sync_id, | |
| 72 const syncer::ReadNode& read_node, | |
| 73 const syncer::AttachmentServiceProxy& attachment_service_proxy) { | |
| 74 const syncer::AttachmentIdList& attachment_ids = read_node.GetAttachmentIds(); | |
| 75 switch (read_node.GetModelType()) { | |
| 76 case syncer::PASSWORDS: { | |
| 77 // Passwords must be accessed differently, to account for their | |
| 78 // encryption, and stored into a temporary EntitySpecifics. | |
| 79 sync_pb::EntitySpecifics password_holder; | |
| 80 password_holder.mutable_password() | |
| 81 ->mutable_client_only_encrypted_data() | |
| 82 ->CopyFrom(read_node.GetPasswordSpecifics()); | |
| 83 return syncer::SyncData::CreateRemoteData( | |
| 84 sync_id, password_holder, read_node.GetModificationTime(), | |
| 85 attachment_ids, attachment_service_proxy); | |
| 86 } | |
| 87 case syncer::SESSIONS: | |
| 88 // Include tag hashes for sessions data type to allow discarding during | |
| 89 // merge if re-hashing by the service gives a different value. This is to | |
| 90 // allow removal of incorrectly hashed values, see crbug.com/604657. This | |
| 91 // cannot be done in the processor because only the service knows how to | |
| 92 // generate a tag from the specifics. We don't set this value for other | |
| 93 // data types because they shouldn't need it and it costs memory to hold | |
| 94 // another copy of this string around. | |
| 95 return syncer::SyncData::CreateRemoteData( | |
| 96 sync_id, read_node.GetEntitySpecifics(), | |
| 97 read_node.GetModificationTime(), attachment_ids, | |
| 98 attachment_service_proxy, read_node.GetEntry()->GetUniqueClientTag()); | |
| 99 default: | |
| 100 // Use the specifics directly, encryption has already been handled. | |
| 101 return syncer::SyncData::CreateRemoteData( | |
| 102 sync_id, read_node.GetEntitySpecifics(), | |
| 103 read_node.GetModificationTime(), attachment_ids, | |
| 104 attachment_service_proxy); | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 } // namespace | |
| 109 | |
| 110 GenericChangeProcessor::GenericChangeProcessor( | |
| 111 syncer::ModelType type, | |
| 112 syncer::DataTypeErrorHandler* error_handler, | |
| 113 const base::WeakPtr<syncer::SyncableService>& local_service, | |
| 114 const base::WeakPtr<syncer::SyncMergeResult>& merge_result, | |
| 115 syncer::UserShare* user_share, | |
| 116 SyncClient* sync_client, | |
| 117 std::unique_ptr<syncer::AttachmentStoreForSync> attachment_store) | |
| 118 : ChangeProcessor(error_handler), | |
| 119 type_(type), | |
| 120 local_service_(local_service), | |
| 121 merge_result_(merge_result), | |
| 122 share_handle_(user_share), | |
| 123 weak_ptr_factory_(this) { | |
| 124 DCHECK(CalledOnValidThread()); | |
| 125 DCHECK_NE(type_, syncer::UNSPECIFIED); | |
| 126 if (attachment_store) { | |
| 127 std::string store_birthday; | |
| 128 { | |
| 129 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 130 store_birthday = trans.GetStoreBirthday(); | |
| 131 } | |
| 132 attachment_service_ = | |
| 133 sync_client->GetSyncApiComponentFactory()->CreateAttachmentService( | |
| 134 std::move(attachment_store), *user_share, store_birthday, type, | |
| 135 this); | |
| 136 attachment_service_weak_ptr_factory_.reset( | |
| 137 new base::WeakPtrFactory<syncer::AttachmentService>( | |
| 138 attachment_service_.get())); | |
| 139 attachment_service_proxy_ = syncer::AttachmentServiceProxy( | |
| 140 base::ThreadTaskRunnerHandle::Get(), | |
| 141 attachment_service_weak_ptr_factory_->GetWeakPtr()); | |
| 142 UploadAllAttachmentsNotOnServer(); | |
| 143 } else { | |
| 144 attachment_service_proxy_ = syncer::AttachmentServiceProxy( | |
| 145 base::ThreadTaskRunnerHandle::Get(), | |
| 146 base::WeakPtr<syncer::AttachmentService>()); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 GenericChangeProcessor::~GenericChangeProcessor() { | |
| 151 DCHECK(CalledOnValidThread()); | |
| 152 } | |
| 153 | |
| 154 void GenericChangeProcessor::ApplyChangesFromSyncModel( | |
| 155 const syncer::BaseTransaction* trans, | |
| 156 int64_t model_version, | |
| 157 const syncer::ImmutableChangeRecordList& changes) { | |
| 158 DCHECK(CalledOnValidThread()); | |
| 159 DCHECK(syncer_changes_.empty()); | |
| 160 for (syncer::ChangeRecordList::const_iterator it = | |
| 161 changes.Get().begin(); it != changes.Get().end(); ++it) { | |
| 162 if (it->action == syncer::ChangeRecord::ACTION_DELETE) { | |
| 163 std::unique_ptr<sync_pb::EntitySpecifics> specifics; | |
| 164 if (it->specifics.has_password()) { | |
| 165 DCHECK(it->extra.get()); | |
| 166 specifics.reset(new sync_pb::EntitySpecifics(it->specifics)); | |
| 167 specifics->mutable_password()->mutable_client_only_encrypted_data()-> | |
| 168 CopyFrom(it->extra->unencrypted()); | |
| 169 } | |
| 170 const syncer::AttachmentIdList empty_list_of_attachment_ids; | |
| 171 syncer_changes_.push_back(syncer::SyncChange( | |
| 172 FROM_HERE, syncer::SyncChange::ACTION_DELETE, | |
| 173 syncer::SyncData::CreateRemoteData( | |
| 174 it->id, specifics ? *specifics : it->specifics, base::Time(), | |
| 175 empty_list_of_attachment_ids, attachment_service_proxy_))); | |
| 176 } else { | |
| 177 syncer::SyncChange::SyncChangeType action = | |
| 178 (it->action == syncer::ChangeRecord::ACTION_ADD) ? | |
| 179 syncer::SyncChange::ACTION_ADD : syncer::SyncChange::ACTION_UPDATE; | |
| 180 // Need to load specifics from node. | |
| 181 syncer::ReadNode read_node(trans); | |
| 182 if (read_node.InitByIdLookup(it->id) != syncer::BaseNode::INIT_OK) { | |
| 183 syncer::SyncError error( | |
| 184 FROM_HERE, | |
| 185 syncer::SyncError::DATATYPE_ERROR, | |
| 186 "Failed to look up data for received change with id " + | |
| 187 base::Int64ToString(it->id), | |
| 188 syncer::GetModelTypeFromSpecifics(it->specifics)); | |
| 189 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 190 return; | |
| 191 } | |
| 192 syncer_changes_.push_back(syncer::SyncChange( | |
| 193 FROM_HERE, action, | |
| 194 BuildRemoteSyncData(it->id, read_node, attachment_service_proxy_))); | |
| 195 } | |
| 196 } | |
| 197 } | |
| 198 | |
| 199 void GenericChangeProcessor::CommitChangesFromSyncModel() { | |
| 200 DCHECK(CalledOnValidThread()); | |
| 201 if (syncer_changes_.empty()) | |
| 202 return; | |
| 203 if (!local_service_.get()) { | |
| 204 syncer::ModelType type = syncer_changes_[0].sync_data().GetDataType(); | |
| 205 syncer::SyncError error(FROM_HERE, | |
| 206 syncer::SyncError::DATATYPE_ERROR, | |
| 207 "Local service destroyed.", | |
| 208 type); | |
| 209 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 210 return; | |
| 211 } | |
| 212 syncer::SyncError error = local_service_->ProcessSyncChanges(FROM_HERE, | |
| 213 syncer_changes_); | |
| 214 syncer_changes_.clear(); | |
| 215 if (error.IsSet()) | |
| 216 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 217 } | |
| 218 | |
| 219 syncer::SyncDataList GenericChangeProcessor::GetAllSyncData( | |
| 220 syncer::ModelType type) const { | |
| 221 DCHECK_EQ(type_, type); | |
| 222 // This is slow / memory intensive. Should be used sparingly by datatypes. | |
| 223 syncer::SyncDataList data; | |
| 224 GetAllSyncDataReturnError(&data); | |
| 225 return data; | |
| 226 } | |
| 227 | |
| 228 syncer::SyncError GenericChangeProcessor::UpdateDataTypeContext( | |
| 229 syncer::ModelType type, | |
| 230 syncer::SyncChangeProcessor::ContextRefreshStatus refresh_status, | |
| 231 const std::string& context) { | |
| 232 DCHECK(syncer::ProtocolTypes().Has(type)); | |
| 233 DCHECK_EQ(type_, type); | |
| 234 | |
| 235 if (context.size() > static_cast<size_t>(kContextSizeLimit)) { | |
| 236 return syncer::SyncError(FROM_HERE, | |
| 237 syncer::SyncError::DATATYPE_ERROR, | |
| 238 "Context size limit exceeded.", | |
| 239 type); | |
| 240 } | |
| 241 | |
| 242 syncer::WriteTransaction trans(FROM_HERE, share_handle()); | |
| 243 trans.SetDataTypeContext(type, refresh_status, context); | |
| 244 | |
| 245 // TODO(zea): plumb a pointer to the PSS or SyncManagerImpl here so we can | |
| 246 // trigger a datatype nudge if |refresh_status == REFRESH_NEEDED|. | |
| 247 | |
| 248 return syncer::SyncError(); | |
| 249 } | |
| 250 | |
| 251 void GenericChangeProcessor::OnAttachmentUploaded( | |
| 252 const syncer::AttachmentId& attachment_id) { | |
| 253 syncer::WriteTransaction trans(FROM_HERE, share_handle()); | |
| 254 trans.UpdateEntriesMarkAttachmentAsOnServer(attachment_id); | |
| 255 } | |
| 256 | |
| 257 syncer::SyncError GenericChangeProcessor::GetAllSyncDataReturnError( | |
| 258 syncer::SyncDataList* current_sync_data) const { | |
| 259 DCHECK(CalledOnValidThread()); | |
| 260 std::string type_name = syncer::ModelTypeToString(type_); | |
| 261 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 262 syncer::ReadNode root(&trans); | |
| 263 if (root.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK) { | |
| 264 syncer::SyncError error(FROM_HERE, | |
| 265 syncer::SyncError::DATATYPE_ERROR, | |
| 266 "Server did not create the top-level " + type_name + | |
| 267 " node. We might be running against an out-of-" | |
| 268 "date server.", | |
| 269 type_); | |
| 270 return error; | |
| 271 } | |
| 272 | |
| 273 // TODO(akalin): We'll have to do a tree traversal for bookmarks. | |
| 274 DCHECK_NE(type_, syncer::BOOKMARKS); | |
| 275 | |
| 276 std::vector<int64_t> child_ids; | |
| 277 root.GetChildIds(&child_ids); | |
| 278 | |
| 279 for (std::vector<int64_t>::iterator it = child_ids.begin(); | |
| 280 it != child_ids.end(); ++it) { | |
| 281 syncer::ReadNode sync_child_node(&trans); | |
| 282 if (sync_child_node.InitByIdLookup(*it) != | |
| 283 syncer::BaseNode::INIT_OK) { | |
| 284 syncer::SyncError error( | |
| 285 FROM_HERE, | |
| 286 syncer::SyncError::DATATYPE_ERROR, | |
| 287 "Failed to fetch child node for type " + type_name + ".", | |
| 288 type_); | |
| 289 return error; | |
| 290 } | |
| 291 current_sync_data->push_back(BuildRemoteSyncData( | |
| 292 sync_child_node.GetId(), sync_child_node, attachment_service_proxy_)); | |
| 293 } | |
| 294 return syncer::SyncError(); | |
| 295 } | |
| 296 | |
| 297 bool GenericChangeProcessor::GetDataTypeContext(std::string* context) const { | |
| 298 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 299 sync_pb::DataTypeContext context_proto; | |
| 300 trans.GetDataTypeContext(type_, &context_proto); | |
| 301 if (!context_proto.has_context()) | |
| 302 return false; | |
| 303 | |
| 304 DCHECK_EQ(type_, | |
| 305 syncer::GetModelTypeFromSpecificsFieldNumber( | |
| 306 context_proto.data_type_id())); | |
| 307 *context = context_proto.context(); | |
| 308 return true; | |
| 309 } | |
| 310 | |
| 311 int GenericChangeProcessor::GetSyncCount() { | |
| 312 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 313 syncer::ReadNode root(&trans); | |
| 314 if (root.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK) | |
| 315 return 0; | |
| 316 | |
| 317 // Subtract one to account for type's root node. | |
| 318 return root.GetTotalNodeCount() - 1; | |
| 319 } | |
| 320 | |
| 321 namespace { | |
| 322 | |
| 323 // WARNING: this code is sensitive to compiler optimizations. Be careful | |
| 324 // modifying any code around an OnSingleDataTypeUnrecoverableError call, else | |
| 325 // the compiler attempts to merge it with other calls, losing useful information | |
| 326 // in breakpad uploads. | |
| 327 syncer::SyncError LogLookupFailure( | |
| 328 syncer::BaseNode::InitByLookupResult lookup_result, | |
| 329 const tracked_objects::Location& from_here, | |
| 330 const std::string& error_prefix, | |
| 331 syncer::ModelType type, | |
| 332 syncer::DataTypeErrorHandler* error_handler) { | |
| 333 switch (lookup_result) { | |
| 334 case syncer::BaseNode::INIT_FAILED_ENTRY_NOT_GOOD: { | |
| 335 syncer::SyncError error; | |
| 336 error.Reset(from_here, | |
| 337 error_prefix + | |
| 338 "could not find entry matching the lookup criteria.", | |
| 339 type); | |
| 340 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 341 LOG(ERROR) << "Delete: Bad entry."; | |
| 342 return error; | |
| 343 } | |
| 344 case syncer::BaseNode::INIT_FAILED_ENTRY_IS_DEL: { | |
| 345 syncer::SyncError error; | |
| 346 error.Reset(from_here, error_prefix + "entry is already deleted.", type); | |
| 347 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 348 LOG(ERROR) << "Delete: Deleted entry."; | |
| 349 return error; | |
| 350 } | |
| 351 case syncer::BaseNode::INIT_FAILED_DECRYPT_IF_NECESSARY: { | |
| 352 syncer::SyncError error; | |
| 353 error.Reset(from_here, error_prefix + "unable to decrypt", type); | |
| 354 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 355 LOG(ERROR) << "Delete: Undecryptable entry."; | |
| 356 return error; | |
| 357 } | |
| 358 case syncer::BaseNode::INIT_FAILED_PRECONDITION: { | |
| 359 syncer::SyncError error; | |
| 360 error.Reset(from_here, | |
| 361 error_prefix + "a precondition was not met for calling init.", | |
| 362 type); | |
| 363 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 364 LOG(ERROR) << "Delete: Failed precondition."; | |
| 365 return error; | |
| 366 } | |
| 367 default: { | |
| 368 syncer::SyncError error; | |
| 369 // Should have listed all the possible error cases above. | |
| 370 error.Reset(from_here, error_prefix + "unknown error", type); | |
| 371 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 372 LOG(ERROR) << "Delete: Unknown error."; | |
| 373 return error; | |
| 374 } | |
| 375 } | |
| 376 } | |
| 377 | |
| 378 syncer::SyncError AttemptDelete(const syncer::SyncChange& change, | |
| 379 syncer::ModelType type, | |
| 380 const std::string& type_str, | |
| 381 syncer::WriteNode* node, | |
| 382 syncer::DataTypeErrorHandler* error_handler) { | |
| 383 DCHECK_EQ(change.change_type(), syncer::SyncChange::ACTION_DELETE); | |
| 384 if (change.sync_data().IsLocal()) { | |
| 385 const std::string& tag = syncer::SyncDataLocal(change.sync_data()).GetTag(); | |
| 386 if (tag.empty()) { | |
| 387 syncer::SyncError error( | |
| 388 FROM_HERE, | |
| 389 syncer::SyncError::DATATYPE_ERROR, | |
| 390 "Failed to delete " + type_str + " node. Local data, empty tag. " + | |
| 391 change.location().ToString(), | |
| 392 type); | |
| 393 error_handler->OnSingleDataTypeUnrecoverableError(error); | |
| 394 NOTREACHED(); | |
| 395 return error; | |
| 396 } | |
| 397 | |
| 398 syncer::BaseNode::InitByLookupResult result = | |
| 399 node->InitByClientTagLookup(change.sync_data().GetDataType(), tag); | |
| 400 if (result != syncer::BaseNode::INIT_OK) { | |
| 401 return LogLookupFailure( | |
| 402 result, FROM_HERE, | |
| 403 "Failed to delete " + type_str + " node. Local data. " + | |
| 404 change.location().ToString(), | |
| 405 type, error_handler); | |
| 406 } | |
| 407 } else { | |
| 408 syncer::BaseNode::InitByLookupResult result = node->InitByIdLookup( | |
| 409 syncer::SyncDataRemote(change.sync_data()).GetId()); | |
| 410 if (result != syncer::BaseNode::INIT_OK) { | |
| 411 return LogLookupFailure( | |
| 412 result, FROM_HERE, | |
| 413 "Failed to delete " + type_str + " node. Non-local data. " + | |
| 414 change.location().ToString(), | |
| 415 type, error_handler); | |
| 416 } | |
| 417 } | |
| 418 if (IsActOnceDataType(type)) | |
| 419 node->Drop(); | |
| 420 else | |
| 421 node->Tombstone(); | |
| 422 return syncer::SyncError(); | |
| 423 } | |
| 424 | |
| 425 } // namespace | |
| 426 | |
| 427 syncer::SyncError GenericChangeProcessor::ProcessSyncChanges( | |
| 428 const tracked_objects::Location& from_here, | |
| 429 const syncer::SyncChangeList& list_of_changes) { | |
| 430 DCHECK(CalledOnValidThread()); | |
| 431 | |
| 432 if (list_of_changes.empty()) { | |
| 433 // No work. Exit without entering WriteTransaction. | |
| 434 return syncer::SyncError(); | |
| 435 } | |
| 436 | |
| 437 // Keep track of brand new attachments so we can persist them on this device | |
| 438 // and upload them to the server. | |
| 439 syncer::AttachmentIdSet new_attachments; | |
| 440 | |
| 441 syncer::WriteTransaction trans(from_here, share_handle()); | |
| 442 | |
| 443 for (syncer::SyncChangeList::const_iterator iter = list_of_changes.begin(); | |
| 444 iter != list_of_changes.end(); | |
| 445 ++iter) { | |
| 446 const syncer::SyncChange& change = *iter; | |
| 447 DCHECK_EQ(change.sync_data().GetDataType(), type_); | |
| 448 std::string type_str = syncer::ModelTypeToString(type_); | |
| 449 syncer::WriteNode sync_node(&trans); | |
| 450 if (change.change_type() == syncer::SyncChange::ACTION_DELETE) { | |
| 451 syncer::SyncError error = | |
| 452 AttemptDelete(change, type_, type_str, &sync_node, error_handler()); | |
| 453 if (error.IsSet()) { | |
| 454 NOTREACHED(); | |
| 455 return error; | |
| 456 } | |
| 457 if (merge_result_.get()) { | |
| 458 merge_result_->set_num_items_deleted( | |
| 459 merge_result_->num_items_deleted() + 1); | |
| 460 } | |
| 461 } else if (change.change_type() == syncer::SyncChange::ACTION_ADD) { | |
| 462 syncer::SyncError error = HandleActionAdd( | |
| 463 change, type_str, trans, &sync_node, &new_attachments); | |
| 464 if (error.IsSet()) { | |
| 465 return error; | |
| 466 } | |
| 467 } else if (change.change_type() == syncer::SyncChange::ACTION_UPDATE) { | |
| 468 syncer::SyncError error = HandleActionUpdate( | |
| 469 change, type_str, trans, &sync_node, &new_attachments); | |
| 470 if (error.IsSet()) { | |
| 471 return error; | |
| 472 } | |
| 473 } else { | |
| 474 syncer::SyncError error( | |
| 475 FROM_HERE, | |
| 476 syncer::SyncError::DATATYPE_ERROR, | |
| 477 "Received unset SyncChange in the change processor, " + | |
| 478 change.location().ToString(), | |
| 479 type_); | |
| 480 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 481 NOTREACHED(); | |
| 482 LOG(ERROR) << "Unset sync change."; | |
| 483 return error; | |
| 484 } | |
| 485 } | |
| 486 | |
| 487 if (!new_attachments.empty()) { | |
| 488 // If datatype uses attachments it should have supplied attachment store | |
| 489 // which would initialize attachment_service_. Fail if it isn't so. | |
| 490 if (!attachment_service_.get()) { | |
| 491 syncer::SyncError error( | |
| 492 FROM_HERE, | |
| 493 syncer::SyncError::DATATYPE_ERROR, | |
| 494 "Datatype performs attachment operation without initializing " | |
| 495 "attachment store", | |
| 496 type_); | |
| 497 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 498 NOTREACHED(); | |
| 499 return error; | |
| 500 } | |
| 501 syncer::AttachmentIdList ids_to_upload; | |
| 502 ids_to_upload.reserve(new_attachments.size()); | |
| 503 std::copy(new_attachments.begin(), new_attachments.end(), | |
| 504 std::back_inserter(ids_to_upload)); | |
| 505 attachment_service_->UploadAttachments(ids_to_upload); | |
| 506 } | |
| 507 | |
| 508 return syncer::SyncError(); | |
| 509 } | |
| 510 | |
| 511 // WARNING: this code is sensitive to compiler optimizations. Be careful | |
| 512 // modifying any code around an OnSingleDataTypeUnrecoverableError call, else | |
| 513 // the compiler attempts to merge it with other calls, losing useful information | |
| 514 // in breakpad uploads. | |
| 515 syncer::SyncError GenericChangeProcessor::HandleActionAdd( | |
| 516 const syncer::SyncChange& change, | |
| 517 const std::string& type_str, | |
| 518 const syncer::WriteTransaction& trans, | |
| 519 syncer::WriteNode* sync_node, | |
| 520 syncer::AttachmentIdSet* new_attachments) { | |
| 521 // TODO(sync): Handle other types of creation (custom parents, folders, | |
| 522 // etc.). | |
| 523 const syncer::SyncDataLocal sync_data_local(change.sync_data()); | |
| 524 syncer::WriteNode::InitUniqueByCreationResult result = | |
| 525 sync_node->InitUniqueByCreation(sync_data_local.GetDataType(), | |
| 526 sync_data_local.GetTag()); | |
| 527 if (result != syncer::WriteNode::INIT_SUCCESS) { | |
| 528 std::string error_prefix = "Failed to create " + type_str + " node: " + | |
| 529 change.location().ToString() + ", "; | |
| 530 switch (result) { | |
| 531 case syncer::WriteNode::INIT_FAILED_EMPTY_TAG: { | |
| 532 syncer::SyncError error; | |
| 533 error.Reset(FROM_HERE, error_prefix + "empty tag", type_); | |
| 534 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 535 LOG(ERROR) << "Create: Empty tag."; | |
| 536 return error; | |
| 537 } | |
| 538 case syncer::WriteNode::INIT_FAILED_COULD_NOT_CREATE_ENTRY: { | |
| 539 syncer::SyncError error; | |
| 540 error.Reset(FROM_HERE, error_prefix + "failed to create entry", type_); | |
| 541 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 542 LOG(ERROR) << "Create: Could not create entry."; | |
| 543 return error; | |
| 544 } | |
| 545 case syncer::WriteNode::INIT_FAILED_SET_PREDECESSOR: { | |
| 546 syncer::SyncError error; | |
| 547 error.Reset( | |
| 548 FROM_HERE, error_prefix + "failed to set predecessor", type_); | |
| 549 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 550 LOG(ERROR) << "Create: Bad predecessor."; | |
| 551 return error; | |
| 552 } | |
| 553 case syncer::WriteNode::INIT_FAILED_DECRYPT_EXISTING_ENTRY: { | |
| 554 syncer::SyncError error; | |
| 555 error.Reset(FROM_HERE, error_prefix + "failed to decrypt", type_); | |
| 556 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 557 LOG(ERROR) << "Create: Failed to decrypt."; | |
| 558 return error; | |
| 559 } | |
| 560 default: { | |
| 561 syncer::SyncError error; | |
| 562 error.Reset(FROM_HERE, error_prefix + "unknown error", type_); | |
| 563 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 564 LOG(ERROR) << "Create: Unknown error."; | |
| 565 return error; | |
| 566 } | |
| 567 } | |
| 568 } | |
| 569 sync_node->SetTitle(change.sync_data().GetTitle()); | |
| 570 SetNodeSpecifics(sync_data_local.GetSpecifics(), sync_node); | |
| 571 | |
| 572 syncer::AttachmentIdList attachment_ids = sync_data_local.GetAttachmentIds(); | |
| 573 SetAttachmentMetadata(attachment_ids, sync_node); | |
| 574 | |
| 575 // Return any newly added attachments. | |
| 576 new_attachments->insert(attachment_ids.begin(), attachment_ids.end()); | |
| 577 if (merge_result_.get()) { | |
| 578 merge_result_->set_num_items_added(merge_result_->num_items_added() + 1); | |
| 579 } | |
| 580 return syncer::SyncError(); | |
| 581 } | |
| 582 // WARNING: this code is sensitive to compiler optimizations. Be careful | |
| 583 // modifying any code around an OnSingleDataTypeUnrecoverableError call, else | |
| 584 // the compiler attempts to merge it with other calls, losing useful information | |
| 585 // in breakpad uploads. | |
| 586 syncer::SyncError GenericChangeProcessor::HandleActionUpdate( | |
| 587 const syncer::SyncChange& change, | |
| 588 const std::string& type_str, | |
| 589 const syncer::WriteTransaction& trans, | |
| 590 syncer::WriteNode* sync_node, | |
| 591 syncer::AttachmentIdSet* new_attachments) { | |
| 592 const syncer::SyncDataLocal sync_data_local(change.sync_data()); | |
| 593 syncer::BaseNode::InitByLookupResult result = | |
| 594 sync_node->InitByClientTagLookup(sync_data_local.GetDataType(), | |
| 595 sync_data_local.GetTag()); | |
| 596 if (result != syncer::BaseNode::INIT_OK) { | |
| 597 std::string error_prefix = "Failed to load " + type_str + " node. " + | |
| 598 change.location().ToString() + ", "; | |
| 599 if (result == syncer::BaseNode::INIT_FAILED_PRECONDITION) { | |
| 600 syncer::SyncError error; | |
| 601 error.Reset(FROM_HERE, error_prefix + "empty tag", type_); | |
| 602 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 603 LOG(ERROR) << "Update: Empty tag."; | |
| 604 return error; | |
| 605 } else if (result == syncer::BaseNode::INIT_FAILED_ENTRY_NOT_GOOD) { | |
| 606 syncer::SyncError error; | |
| 607 error.Reset(FROM_HERE, error_prefix + "bad entry", type_); | |
| 608 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 609 LOG(ERROR) << "Update: bad entry."; | |
| 610 return error; | |
| 611 } else if (result == syncer::BaseNode::INIT_FAILED_ENTRY_IS_DEL) { | |
| 612 syncer::SyncError error; | |
| 613 error.Reset(FROM_HERE, error_prefix + "deleted entry", type_); | |
| 614 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 615 LOG(ERROR) << "Update: deleted entry."; | |
| 616 return error; | |
| 617 } else if (result == syncer::BaseNode::INIT_FAILED_DECRYPT_IF_NECESSARY) { | |
| 618 syncer::SyncError error; | |
| 619 error.Reset(FROM_HERE, error_prefix + "failed to decrypt", type_); | |
| 620 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 621 LOG(ERROR) << "Update: Failed to decrypt."; | |
| 622 return error; | |
| 623 } else { | |
| 624 NOTREACHED(); | |
| 625 syncer::SyncError error; | |
| 626 error.Reset(FROM_HERE, error_prefix + "unknown error", type_); | |
| 627 error_handler()->OnSingleDataTypeUnrecoverableError(error); | |
| 628 LOG(ERROR) << "Update: Unknown error."; | |
| 629 return error; | |
| 630 } | |
| 631 } | |
| 632 | |
| 633 sync_node->SetTitle(change.sync_data().GetTitle()); | |
| 634 SetNodeSpecifics(sync_data_local.GetSpecifics(), sync_node); | |
| 635 syncer::AttachmentIdList attachment_ids = sync_data_local.GetAttachmentIds(); | |
| 636 SetAttachmentMetadata(attachment_ids, sync_node); | |
| 637 | |
| 638 // Return any newly added attachments. | |
| 639 new_attachments->insert(attachment_ids.begin(), attachment_ids.end()); | |
| 640 | |
| 641 if (merge_result_.get()) { | |
| 642 merge_result_->set_num_items_modified(merge_result_->num_items_modified() + | |
| 643 1); | |
| 644 } | |
| 645 // TODO(sync): Support updating other parts of the sync node (title, | |
| 646 // successor, parent, etc.). | |
| 647 return syncer::SyncError(); | |
| 648 } | |
| 649 | |
| 650 bool GenericChangeProcessor::SyncModelHasUserCreatedNodes(bool* has_nodes) { | |
| 651 DCHECK(CalledOnValidThread()); | |
| 652 DCHECK(has_nodes); | |
| 653 std::string type_name = syncer::ModelTypeToString(type_); | |
| 654 std::string err_str = "Server did not create the top-level " + type_name + | |
| 655 " node. We might be running against an out-of-date server."; | |
| 656 *has_nodes = false; | |
| 657 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 658 syncer::ReadNode type_root_node(&trans); | |
| 659 if (type_root_node.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK) { | |
| 660 LOG(ERROR) << err_str; | |
| 661 return false; | |
| 662 } | |
| 663 | |
| 664 // The sync model has user created nodes if the type's root node has any | |
| 665 // children. | |
| 666 *has_nodes = type_root_node.HasChildren(); | |
| 667 return true; | |
| 668 } | |
| 669 | |
| 670 bool GenericChangeProcessor::CryptoReadyIfNecessary() { | |
| 671 DCHECK(CalledOnValidThread()); | |
| 672 // We only access the cryptographer while holding a transaction. | |
| 673 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 674 const syncer::ModelTypeSet encrypted_types = trans.GetEncryptedTypes(); | |
| 675 return !encrypted_types.Has(type_) || trans.GetCryptographer()->is_ready(); | |
| 676 } | |
| 677 | |
| 678 void GenericChangeProcessor::StartImpl() { | |
| 679 } | |
| 680 | |
| 681 syncer::UserShare* GenericChangeProcessor::share_handle() const { | |
| 682 DCHECK(CalledOnValidThread()); | |
| 683 return share_handle_; | |
| 684 } | |
| 685 | |
| 686 void GenericChangeProcessor::UploadAllAttachmentsNotOnServer() { | |
| 687 DCHECK(CalledOnValidThread()); | |
| 688 DCHECK(attachment_service_.get()); | |
| 689 syncer::AttachmentIdList ids; | |
| 690 { | |
| 691 syncer::ReadTransaction trans(FROM_HERE, share_handle()); | |
| 692 trans.GetAttachmentIdsToUpload(type_, &ids); | |
| 693 } | |
| 694 if (!ids.empty()) { | |
| 695 attachment_service_->UploadAttachments(ids); | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 std::unique_ptr<syncer::AttachmentService> | |
| 700 GenericChangeProcessor::GetAttachmentService() const { | |
| 701 return std::unique_ptr<syncer::AttachmentService>( | |
| 702 new syncer::AttachmentServiceProxy(attachment_service_proxy_)); | |
| 703 } | |
| 704 | |
| 705 } // namespace sync_driver | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2203673002:
[Sync] Move //components/sync_driver to //components/sync/driver. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@sd-a