1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
|
// 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.
#include "components/sync_driver/generic_change_processor.h"
#include "base/location.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/thread_task_runner_handle.h"
#include "components/sync_driver/sync_api_component_factory.h"
#include "sync/api/sync_change.h"
#include "sync/api/sync_error.h"
#include "sync/api/syncable_service.h"
#include "sync/internal_api/public/base_node.h"
#include "sync/internal_api/public/change_record.h"
#include "sync/internal_api/public/read_node.h"
#include "sync/internal_api/public/read_transaction.h"
#include "sync/internal_api/public/util/unrecoverable_error_handler.h"
#include "sync/internal_api/public/write_node.h"
#include "sync/internal_api/public/write_transaction.h"
#include "sync/syncable/entry.h" // TODO(tim): Bug 123674.
namespace sync_driver {
namespace {
const int kContextSizeLimit = 1024; // Datatype context size limit.
void SetNodeSpecifics(const sync_pb::EntitySpecifics& entity_specifics,
syncer::WriteNode* write_node) {
if (syncer::GetModelTypeFromSpecifics(entity_specifics) ==
syncer::PASSWORDS) {
write_node->SetPasswordSpecifics(
entity_specifics.password().client_only_encrypted_data());
} else {
write_node->SetEntitySpecifics(entity_specifics);
}
}
// Helper function to convert AttachmentId to AttachmentMetadataRecord.
sync_pb::AttachmentMetadataRecord AttachmentIdToRecord(
const syncer::AttachmentId& attachment_id) {
sync_pb::AttachmentMetadataRecord record;
*record.mutable_id() = attachment_id.GetProto();
return record;
}
// Replace |write_nodes|'s attachment ids with |attachment_ids|.
void SetAttachmentMetadata(const syncer::AttachmentIdList& attachment_ids,
syncer::WriteNode* write_node) {
DCHECK(write_node);
sync_pb::AttachmentMetadata attachment_metadata;
std::transform(
attachment_ids.begin(),
attachment_ids.end(),
RepeatedFieldBackInserter(attachment_metadata.mutable_record()),
AttachmentIdToRecord);
write_node->SetAttachmentMetadata(attachment_metadata);
}
syncer::SyncData BuildRemoteSyncData(
int64 sync_id,
const syncer::BaseNode& read_node,
const syncer::AttachmentServiceProxy& attachment_service_proxy) {
const syncer::AttachmentIdList& attachment_ids = read_node.GetAttachmentIds();
// Use the specifics of non-password datatypes directly (encryption has
// already been handled).
if (read_node.GetModelType() != syncer::PASSWORDS) {
return syncer::SyncData::CreateRemoteData(sync_id,
read_node.GetEntitySpecifics(),
read_node.GetModificationTime(),
attachment_ids,
attachment_service_proxy);
}
// Passwords must be accessed differently, to account for their encryption,
// and stored into a temporary EntitySpecifics.
sync_pb::EntitySpecifics password_holder;
password_holder.mutable_password()->mutable_client_only_encrypted_data()->
CopyFrom(read_node.GetPasswordSpecifics());
return syncer::SyncData::CreateRemoteData(sync_id,
password_holder,
read_node.GetModificationTime(),
attachment_ids,
attachment_service_proxy);
}
} // namespace
GenericChangeProcessor::GenericChangeProcessor(
syncer::ModelType type,
DataTypeErrorHandler* error_handler,
const base::WeakPtr<syncer::SyncableService>& local_service,
const base::WeakPtr<syncer::SyncMergeResult>& merge_result,
syncer::UserShare* user_share,
SyncApiComponentFactory* sync_factory,
scoped_ptr<syncer::AttachmentStoreForSync> attachment_store)
: ChangeProcessor(error_handler),
type_(type),
local_service_(local_service),
merge_result_(merge_result),
share_handle_(user_share),
weak_ptr_factory_(this) {
DCHECK(CalledOnValidThread());
DCHECK_NE(type_, syncer::UNSPECIFIED);
if (attachment_store) {
std::string store_birthday;
{
syncer::ReadTransaction trans(FROM_HERE, share_handle());
store_birthday = trans.GetStoreBirthday();
}
attachment_service_ = sync_factory->CreateAttachmentService(
attachment_store.Pass(), *user_share, store_birthday, type, this);
attachment_service_weak_ptr_factory_.reset(
new base::WeakPtrFactory<syncer::AttachmentService>(
attachment_service_.get()));
attachment_service_proxy_ = syncer::AttachmentServiceProxy(
base::ThreadTaskRunnerHandle::Get(),
attachment_service_weak_ptr_factory_->GetWeakPtr());
UploadAllAttachmentsNotOnServer();
} else {
attachment_service_proxy_ = syncer::AttachmentServiceProxy(
base::ThreadTaskRunnerHandle::Get(),
base::WeakPtr<syncer::AttachmentService>());
}
}
GenericChangeProcessor::~GenericChangeProcessor() {
DCHECK(CalledOnValidThread());
}
void GenericChangeProcessor::ApplyChangesFromSyncModel(
const syncer::BaseTransaction* trans,
int64 model_version,
const syncer::ImmutableChangeRecordList& changes) {
DCHECK(CalledOnValidThread());
DCHECK(syncer_changes_.empty());
for (syncer::ChangeRecordList::const_iterator it =
changes.Get().begin(); it != changes.Get().end(); ++it) {
if (it->action == syncer::ChangeRecord::ACTION_DELETE) {
scoped_ptr<sync_pb::EntitySpecifics> specifics;
if (it->specifics.has_password()) {
DCHECK(it->extra.get());
specifics.reset(new sync_pb::EntitySpecifics(it->specifics));
specifics->mutable_password()->mutable_client_only_encrypted_data()->
CopyFrom(it->extra->unencrypted());
}
const syncer::AttachmentIdList empty_list_of_attachment_ids;
syncer_changes_.push_back(syncer::SyncChange(
FROM_HERE, syncer::SyncChange::ACTION_DELETE,
syncer::SyncData::CreateRemoteData(
it->id, specifics ? *specifics : it->specifics, base::Time(),
empty_list_of_attachment_ids, attachment_service_proxy_)));
} else {
syncer::SyncChange::SyncChangeType action =
(it->action == syncer::ChangeRecord::ACTION_ADD) ?
syncer::SyncChange::ACTION_ADD : syncer::SyncChange::ACTION_UPDATE;
// Need to load specifics from node.
syncer::ReadNode read_node(trans);
if (read_node.InitByIdLookup(it->id) != syncer::BaseNode::INIT_OK) {
syncer::SyncError error(
FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Failed to look up data for received change with id " +
base::Int64ToString(it->id),
syncer::GetModelTypeFromSpecifics(it->specifics));
error_handler()->OnSingleDataTypeUnrecoverableError(error);
return;
}
syncer_changes_.push_back(syncer::SyncChange(
FROM_HERE, action,
BuildRemoteSyncData(it->id, read_node, attachment_service_proxy_)));
}
}
}
void GenericChangeProcessor::CommitChangesFromSyncModel() {
DCHECK(CalledOnValidThread());
if (syncer_changes_.empty())
return;
if (!local_service_.get()) {
syncer::ModelType type = syncer_changes_[0].sync_data().GetDataType();
syncer::SyncError error(FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Local service destroyed.",
type);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
return;
}
syncer::SyncError error = local_service_->ProcessSyncChanges(FROM_HERE,
syncer_changes_);
syncer_changes_.clear();
if (error.IsSet())
error_handler()->OnSingleDataTypeUnrecoverableError(error);
}
syncer::SyncDataList GenericChangeProcessor::GetAllSyncData(
syncer::ModelType type) const {
DCHECK_EQ(type_, type);
// This is slow / memory intensive. Should be used sparingly by datatypes.
syncer::SyncDataList data;
GetAllSyncDataReturnError(&data);
return data;
}
syncer::SyncError GenericChangeProcessor::UpdateDataTypeContext(
syncer::ModelType type,
syncer::SyncChangeProcessor::ContextRefreshStatus refresh_status,
const std::string& context) {
DCHECK(syncer::ProtocolTypes().Has(type));
DCHECK_EQ(type_, type);
if (context.size() > static_cast<size_t>(kContextSizeLimit)) {
return syncer::SyncError(FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Context size limit exceeded.",
type);
}
syncer::WriteTransaction trans(FROM_HERE, share_handle());
trans.SetDataTypeContext(type, refresh_status, context);
// TODO(zea): plumb a pointer to the PSS or SyncManagerImpl here so we can
// trigger a datatype nudge if |refresh_status == REFRESH_NEEDED|.
return syncer::SyncError();
}
void GenericChangeProcessor::OnAttachmentUploaded(
const syncer::AttachmentId& attachment_id) {
syncer::WriteTransaction trans(FROM_HERE, share_handle());
trans.UpdateEntriesMarkAttachmentAsOnServer(attachment_id);
}
syncer::SyncError GenericChangeProcessor::GetAllSyncDataReturnError(
syncer::SyncDataList* current_sync_data) const {
DCHECK(CalledOnValidThread());
std::string type_name = syncer::ModelTypeToString(type_);
syncer::ReadTransaction trans(FROM_HERE, share_handle());
syncer::ReadNode root(&trans);
if (root.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK) {
syncer::SyncError error(FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Server did not create the top-level " + type_name +
" node. We might be running against an out-of-"
"date server.",
type_);
return error;
}
// TODO(akalin): We'll have to do a tree traversal for bookmarks.
DCHECK_NE(type_, syncer::BOOKMARKS);
std::vector<int64> child_ids;
root.GetChildIds(&child_ids);
for (std::vector<int64>::iterator it = child_ids.begin();
it != child_ids.end(); ++it) {
syncer::ReadNode sync_child_node(&trans);
if (sync_child_node.InitByIdLookup(*it) !=
syncer::BaseNode::INIT_OK) {
syncer::SyncError error(
FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Failed to fetch child node for type " + type_name + ".",
type_);
return error;
}
current_sync_data->push_back(BuildRemoteSyncData(
sync_child_node.GetId(), sync_child_node, attachment_service_proxy_));
}
return syncer::SyncError();
}
bool GenericChangeProcessor::GetDataTypeContext(std::string* context) const {
syncer::ReadTransaction trans(FROM_HERE, share_handle());
sync_pb::DataTypeContext context_proto;
trans.GetDataTypeContext(type_, &context_proto);
if (!context_proto.has_context())
return false;
DCHECK_EQ(type_,
syncer::GetModelTypeFromSpecificsFieldNumber(
context_proto.data_type_id()));
*context = context_proto.context();
return true;
}
int GenericChangeProcessor::GetSyncCount() {
syncer::ReadTransaction trans(FROM_HERE, share_handle());
syncer::ReadNode root(&trans);
if (root.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK)
return 0;
// Subtract one to account for type's root node.
return root.GetTotalNodeCount() - 1;
}
namespace {
// WARNING: this code is sensitive to compiler optimizations. Be careful
// modifying any code around an OnSingleDataTypeUnrecoverableError call, else
// the compiler attempts to merge it with other calls, losing useful information
// in breakpad uploads.
syncer::SyncError LogLookupFailure(
syncer::BaseNode::InitByLookupResult lookup_result,
const tracked_objects::Location& from_here,
const std::string& error_prefix,
syncer::ModelType type,
DataTypeErrorHandler* error_handler) {
switch (lookup_result) {
case syncer::BaseNode::INIT_FAILED_ENTRY_NOT_GOOD: {
syncer::SyncError error;
error.Reset(from_here,
error_prefix +
"could not find entry matching the lookup criteria.",
type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Delete: Bad entry.";
return error;
}
case syncer::BaseNode::INIT_FAILED_ENTRY_IS_DEL: {
syncer::SyncError error;
error.Reset(from_here, error_prefix + "entry is already deleted.", type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Delete: Deleted entry.";
return error;
}
case syncer::BaseNode::INIT_FAILED_DECRYPT_IF_NECESSARY: {
syncer::SyncError error;
error.Reset(from_here, error_prefix + "unable to decrypt", type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Delete: Undecryptable entry.";
return error;
}
case syncer::BaseNode::INIT_FAILED_PRECONDITION: {
syncer::SyncError error;
error.Reset(from_here,
error_prefix + "a precondition was not met for calling init.",
type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Delete: Failed precondition.";
return error;
}
default: {
syncer::SyncError error;
// Should have listed all the possible error cases above.
error.Reset(from_here, error_prefix + "unknown error", type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Delete: Unknown error.";
return error;
}
}
}
syncer::SyncError AttemptDelete(const syncer::SyncChange& change,
syncer::ModelType type,
const std::string& type_str,
syncer::WriteNode* node,
DataTypeErrorHandler* error_handler) {
DCHECK_EQ(change.change_type(), syncer::SyncChange::ACTION_DELETE);
if (change.sync_data().IsLocal()) {
const std::string& tag = syncer::SyncDataLocal(change.sync_data()).GetTag();
if (tag.empty()) {
syncer::SyncError error(
FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Failed to delete " + type_str + " node. Local data, empty tag. " +
change.location().ToString(),
type);
error_handler->OnSingleDataTypeUnrecoverableError(error);
NOTREACHED();
return error;
}
syncer::BaseNode::InitByLookupResult result =
node->InitByClientTagLookup(change.sync_data().GetDataType(), tag);
if (result != syncer::BaseNode::INIT_OK) {
return LogLookupFailure(
result, FROM_HERE,
"Failed to delete " + type_str + " node. Local data. " +
change.location().ToString(),
type, error_handler);
}
} else {
syncer::BaseNode::InitByLookupResult result = node->InitByIdLookup(
syncer::SyncDataRemote(change.sync_data()).GetId());
if (result != syncer::BaseNode::INIT_OK) {
return LogLookupFailure(
result, FROM_HERE,
"Failed to delete " + type_str + " node. Non-local data. " +
change.location().ToString(),
type, error_handler);
}
}
if (IsActOnceDataType(type))
node->Drop();
else
node->Tombstone();
return syncer::SyncError();
}
} // namespace
syncer::SyncError GenericChangeProcessor::ProcessSyncChanges(
const tracked_objects::Location& from_here,
const syncer::SyncChangeList& list_of_changes) {
DCHECK(CalledOnValidThread());
// Keep track of brand new attachments so we can persist them on this device
// and upload them to the server.
syncer::AttachmentIdSet new_attachments;
syncer::WriteTransaction trans(from_here, share_handle());
for (syncer::SyncChangeList::const_iterator iter = list_of_changes.begin();
iter != list_of_changes.end();
++iter) {
const syncer::SyncChange& change = *iter;
DCHECK_EQ(change.sync_data().GetDataType(), type_);
std::string type_str = syncer::ModelTypeToString(type_);
syncer::WriteNode sync_node(&trans);
if (change.change_type() == syncer::SyncChange::ACTION_DELETE) {
syncer::SyncError error =
AttemptDelete(change, type_, type_str, &sync_node, error_handler());
if (error.IsSet()) {
NOTREACHED();
return error;
}
if (merge_result_.get()) {
merge_result_->set_num_items_deleted(
merge_result_->num_items_deleted() + 1);
}
} else if (change.change_type() == syncer::SyncChange::ACTION_ADD) {
syncer::SyncError error = HandleActionAdd(
change, type_str, trans, &sync_node, &new_attachments);
if (error.IsSet()) {
return error;
}
} else if (change.change_type() == syncer::SyncChange::ACTION_UPDATE) {
syncer::SyncError error = HandleActionUpdate(
change, type_str, trans, &sync_node, &new_attachments);
if (error.IsSet()) {
return error;
}
} else {
syncer::SyncError error(
FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Received unset SyncChange in the change processor, " +
change.location().ToString(),
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
NOTREACHED();
LOG(ERROR) << "Unset sync change.";
return error;
}
}
if (!new_attachments.empty()) {
// If datatype uses attachments it should have supplied attachment store
// which would initialize attachment_service_. Fail if it isn't so.
if (!attachment_service_.get()) {
syncer::SyncError error(
FROM_HERE,
syncer::SyncError::DATATYPE_ERROR,
"Datatype performs attachment operation without initializing "
"attachment store",
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
NOTREACHED();
return error;
}
syncer::AttachmentIdList ids_to_upload;
ids_to_upload.reserve(new_attachments.size());
std::copy(new_attachments.begin(), new_attachments.end(),
std::back_inserter(ids_to_upload));
attachment_service_->UploadAttachments(ids_to_upload);
}
return syncer::SyncError();
}
// WARNING: this code is sensitive to compiler optimizations. Be careful
// modifying any code around an OnSingleDataTypeUnrecoverableError call, else
// the compiler attempts to merge it with other calls, losing useful information
// in breakpad uploads.
syncer::SyncError GenericChangeProcessor::HandleActionAdd(
const syncer::SyncChange& change,
const std::string& type_str,
const syncer::WriteTransaction& trans,
syncer::WriteNode* sync_node,
syncer::AttachmentIdSet* new_attachments) {
// TODO(sync): Handle other types of creation (custom parents, folders,
// etc.).
const syncer::SyncDataLocal sync_data_local(change.sync_data());
syncer::WriteNode::InitUniqueByCreationResult result =
sync_node->InitUniqueByCreation(sync_data_local.GetDataType(),
sync_data_local.GetTag());
if (result != syncer::WriteNode::INIT_SUCCESS) {
std::string error_prefix = "Failed to create " + type_str + " node: " +
change.location().ToString() + ", ";
switch (result) {
case syncer::WriteNode::INIT_FAILED_EMPTY_TAG: {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "empty tag", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Create: Empty tag.";
return error;
}
case syncer::WriteNode::INIT_FAILED_COULD_NOT_CREATE_ENTRY: {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "failed to create entry", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Create: Could not create entry.";
return error;
}
case syncer::WriteNode::INIT_FAILED_SET_PREDECESSOR: {
syncer::SyncError error;
error.Reset(
FROM_HERE, error_prefix + "failed to set predecessor", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Create: Bad predecessor.";
return error;
}
default: {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "unknown error", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Create: Unknown error.";
return error;
}
}
}
sync_node->SetTitle(change.sync_data().GetTitle());
SetNodeSpecifics(sync_data_local.GetSpecifics(), sync_node);
syncer::AttachmentIdList attachment_ids = sync_data_local.GetAttachmentIds();
SetAttachmentMetadata(attachment_ids, sync_node);
// Return any newly added attachments.
new_attachments->insert(attachment_ids.begin(), attachment_ids.end());
if (merge_result_.get()) {
merge_result_->set_num_items_added(merge_result_->num_items_added() + 1);
}
return syncer::SyncError();
}
// WARNING: this code is sensitive to compiler optimizations. Be careful
// modifying any code around an OnSingleDataTypeUnrecoverableError call, else
// the compiler attempts to merge it with other calls, losing useful information
// in breakpad uploads.
syncer::SyncError GenericChangeProcessor::HandleActionUpdate(
const syncer::SyncChange& change,
const std::string& type_str,
const syncer::WriteTransaction& trans,
syncer::WriteNode* sync_node,
syncer::AttachmentIdSet* new_attachments) {
const syncer::SyncDataLocal sync_data_local(change.sync_data());
syncer::BaseNode::InitByLookupResult result =
sync_node->InitByClientTagLookup(sync_data_local.GetDataType(),
sync_data_local.GetTag());
if (result != syncer::BaseNode::INIT_OK) {
std::string error_prefix = "Failed to load " + type_str + " node. " +
change.location().ToString() + ", ";
if (result == syncer::BaseNode::INIT_FAILED_PRECONDITION) {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "empty tag", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: Empty tag.";
return error;
} else if (result == syncer::BaseNode::INIT_FAILED_ENTRY_NOT_GOOD) {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "bad entry", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: bad entry.";
return error;
} else if (result == syncer::BaseNode::INIT_FAILED_ENTRY_IS_DEL) {
syncer::SyncError error;
error.Reset(FROM_HERE, error_prefix + "deleted entry", type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: deleted entry.";
return error;
} else {
syncer::Cryptographer* crypto = trans.GetCryptographer();
syncer::ModelTypeSet encrypted_types(trans.GetEncryptedTypes());
const sync_pb::EntitySpecifics& specifics =
sync_node->GetEntry()->GetSpecifics();
CHECK(specifics.has_encrypted());
const bool can_decrypt = crypto->CanDecrypt(specifics.encrypted());
const bool agreement = encrypted_types.Has(type_);
if (!agreement && !can_decrypt) {
syncer::SyncError error;
error.Reset(FROM_HERE,
"Failed to load encrypted entry, missing key and "
"nigori mismatch for " +
type_str + ".",
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: encr case 1.";
return error;
} else if (agreement && can_decrypt) {
syncer::SyncError error;
error.Reset(FROM_HERE,
"Failed to load encrypted entry, we have the key "
"and the nigori matches (?!) for " +
type_str + ".",
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: encr case 2.";
return error;
} else if (agreement) {
syncer::SyncError error;
error.Reset(FROM_HERE,
"Failed to load encrypted entry, missing key and "
"the nigori matches for " +
type_str + ".",
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: encr case 3.";
return error;
} else {
syncer::SyncError error;
error.Reset(FROM_HERE,
"Failed to load encrypted entry, we have the key"
"(?!) and nigori mismatch for " +
type_str + ".",
type_);
error_handler()->OnSingleDataTypeUnrecoverableError(error);
LOG(ERROR) << "Update: encr case 4.";
return error;
}
}
}
sync_node->SetTitle(change.sync_data().GetTitle());
SetNodeSpecifics(sync_data_local.GetSpecifics(), sync_node);
syncer::AttachmentIdList attachment_ids = sync_data_local.GetAttachmentIds();
SetAttachmentMetadata(attachment_ids, sync_node);
// Return any newly added attachments.
new_attachments->insert(attachment_ids.begin(), attachment_ids.end());
if (merge_result_.get()) {
merge_result_->set_num_items_modified(merge_result_->num_items_modified() +
1);
}
// TODO(sync): Support updating other parts of the sync node (title,
// successor, parent, etc.).
return syncer::SyncError();
}
bool GenericChangeProcessor::SyncModelHasUserCreatedNodes(bool* has_nodes) {
DCHECK(CalledOnValidThread());
DCHECK(has_nodes);
std::string type_name = syncer::ModelTypeToString(type_);
std::string err_str = "Server did not create the top-level " + type_name +
" node. We might be running against an out-of-date server.";
*has_nodes = false;
syncer::ReadTransaction trans(FROM_HERE, share_handle());
syncer::ReadNode type_root_node(&trans);
if (type_root_node.InitTypeRoot(type_) != syncer::BaseNode::INIT_OK) {
LOG(ERROR) << err_str;
return false;
}
// The sync model has user created nodes if the type's root node has any
// children.
*has_nodes = type_root_node.HasChildren();
return true;
}
bool GenericChangeProcessor::CryptoReadyIfNecessary() {
DCHECK(CalledOnValidThread());
// We only access the cryptographer while holding a transaction.
syncer::ReadTransaction trans(FROM_HERE, share_handle());
const syncer::ModelTypeSet encrypted_types = trans.GetEncryptedTypes();
return !encrypted_types.Has(type_) || trans.GetCryptographer()->is_ready();
}
void GenericChangeProcessor::StartImpl() {
}
syncer::UserShare* GenericChangeProcessor::share_handle() const {
DCHECK(CalledOnValidThread());
return share_handle_;
}
void GenericChangeProcessor::UploadAllAttachmentsNotOnServer() {
DCHECK(CalledOnValidThread());
DCHECK(attachment_service_.get());
syncer::AttachmentIdList ids;
{
syncer::ReadTransaction trans(FROM_HERE, share_handle());
trans.GetAttachmentIdsToUpload(type_, &ids);
}
if (!ids.empty()) {
attachment_service_->UploadAttachments(ids);
}
}
scoped_ptr<syncer::AttachmentService>
GenericChangeProcessor::GetAttachmentService() const {
return scoped_ptr<syncer::AttachmentService>(
new syncer::AttachmentServiceProxy(attachment_service_proxy_));
}
} // namespace sync_driver
|