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1 // Copyright (c) 2012 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 // Sync protocol for communication between sync client and server. | |
6 | |
7 // Update proto_value_conversions{.h,.cc,_unittest.cc} if you change | |
8 // any fields in this file. | |
9 | |
10 syntax = "proto2"; | |
11 | |
12 option optimize_for = LITE_RUNTIME; | |
13 option retain_unknown_fields = true; | |
14 | |
15 package sync_pb; | |
16 | |
17 import "app_list_specifics.proto"; | |
18 import "app_notification_specifics.proto"; | |
19 import "app_setting_specifics.proto"; | |
20 import "app_specifics.proto"; | |
21 import "arc_package_specifics.proto"; | |
22 import "article_specifics.proto"; | |
23 import "attachments.proto"; | |
24 import "autofill_specifics.proto"; | |
25 import "bookmark_specifics.proto"; | |
26 import "client_commands.proto"; | |
27 import "client_debug_info.proto"; | |
28 import "device_info_specifics.proto"; | |
29 import "dictionary_specifics.proto"; | |
30 import "encryption.proto"; | |
31 import "experiments_specifics.proto"; | |
32 import "extension_setting_specifics.proto"; | |
33 import "extension_specifics.proto"; | |
34 import "favicon_image_specifics.proto"; | |
35 import "favicon_tracking_specifics.proto"; | |
36 import "get_updates_caller_info.proto"; | |
37 import "history_delete_directive_specifics.proto"; | |
38 import "nigori_specifics.proto"; | |
39 import "managed_user_setting_specifics.proto"; | |
40 import "managed_user_shared_setting_specifics.proto"; | |
41 import "managed_user_specifics.proto"; | |
42 import "managed_user_whitelist_specifics.proto"; | |
43 import "password_specifics.proto"; | |
44 import "preference_specifics.proto"; | |
45 import "priority_preference_specifics.proto"; | |
46 import "search_engine_specifics.proto"; | |
47 import "session_specifics.proto"; | |
48 import "sync_enums.proto"; | |
49 import "synced_notification_app_info_specifics.proto"; | |
50 import "synced_notification_specifics.proto"; | |
51 import "theme_specifics.proto"; | |
52 import "typed_url_specifics.proto"; | |
53 import "unique_position.proto"; | |
54 import "wifi_credential_specifics.proto"; | |
55 | |
56 // Used for inspecting how long we spent performing operations in different | |
57 // backends. All times must be in millis. | |
58 message ProfilingData { | |
59 optional int64 meta_data_write_time = 1; | |
60 optional int64 file_data_write_time = 2; | |
61 optional int64 user_lookup_time = 3; | |
62 optional int64 meta_data_read_time = 4; | |
63 optional int64 file_data_read_time = 5; | |
64 optional int64 total_request_time = 6; | |
65 } | |
66 | |
67 message EntitySpecifics { | |
68 // If a datatype is encrypted, this field will contain the encrypted | |
69 // original EntitySpecifics. The extension for the datatype will continue | |
70 // to exist, but contain only the default values. | |
71 // Note that currently passwords employ their own legacy encryption scheme and | |
72 // do not use this field. | |
73 optional EncryptedData encrypted = 1; | |
74 | |
75 // To add new datatype-specific fields to the protocol, extend | |
76 // EntitySpecifics. First, pick a non-colliding tag number by | |
77 // picking a Cr-Commit-Position of one of your past commits | |
78 // to src.chromium.org. Then, in a different protocol buffer | |
79 // definition, define your message type, and add an optional field | |
80 // to the list below using the unique tag value you selected. | |
81 // | |
82 // optional MyDatatypeSpecifics my_datatype = 32222; | |
83 // | |
84 // where: | |
85 // - 32222 is the non-colliding tag number you picked earlier. | |
86 // - MyDatatypeSpecifics is the type (probably a message type defined | |
87 // in your new .proto file) that you want to associate with each | |
88 // object of the new datatype. | |
89 // - my_datatype is the field identifier you'll use to access the | |
90 // datatype specifics from the code. | |
91 // | |
92 // Server implementations are obligated to preserve the contents of | |
93 // EntitySpecifics when it contains unrecognized fields. In this | |
94 // way, it is possible to add new datatype fields without having | |
95 // to update the server. | |
96 // | |
97 // Note: The tag selection process is based on legacy versions of the | |
98 // protocol which used protobuf extensions. We have kept the process | |
99 // consistent as the old values cannot change. The 5+ digit nature of the | |
100 // tags also makes them recognizable (individually and collectively) from | |
101 // noise in logs and debugging contexts, and creating a divergent subset of | |
102 // tags would only make things a bit more confusing. | |
103 | |
104 optional AutofillSpecifics autofill = 31729; | |
105 optional BookmarkSpecifics bookmark = 32904; | |
106 optional PreferenceSpecifics preference = 37702; | |
107 optional TypedUrlSpecifics typed_url = 40781; | |
108 optional ThemeSpecifics theme = 41210; | |
109 optional AppNotification app_notification = 45184; | |
110 optional PasswordSpecifics password = 45873; | |
111 optional NigoriSpecifics nigori = 47745; | |
112 optional ExtensionSpecifics extension = 48119; | |
113 optional AppSpecifics app = 48364; | |
114 optional SessionSpecifics session = 50119; | |
115 optional AutofillProfileSpecifics autofill_profile = 63951; | |
116 optional SearchEngineSpecifics search_engine = 88610; | |
117 optional ExtensionSettingSpecifics extension_setting = 96159; | |
118 optional AppSettingSpecifics app_setting = 103656; | |
119 optional HistoryDeleteDirectiveSpecifics history_delete_directive = 150251; | |
120 optional SyncedNotificationSpecifics synced_notification = 153108; | |
121 optional SyncedNotificationAppInfoSpecifics synced_notification_app_info = 235
816; | |
122 optional DeviceInfoSpecifics device_info = 154522; | |
123 optional ExperimentsSpecifics experiments = 161496; | |
124 optional PriorityPreferenceSpecifics priority_preference = 163425; | |
125 optional DictionarySpecifics dictionary = 170540; | |
126 optional FaviconTrackingSpecifics favicon_tracking = 181534; | |
127 optional FaviconImageSpecifics favicon_image = 182019; | |
128 optional ManagedUserSettingSpecifics managed_user_setting = 186662; | |
129 optional ManagedUserSpecifics managed_user = 194582; | |
130 optional ManagedUserSharedSettingSpecifics managed_user_shared_setting = | |
131 202026; | |
132 optional ManagedUserWhitelistSpecifics managed_user_whitelist = 306060; | |
133 optional ArticleSpecifics article = 223759; | |
134 optional AppListSpecifics app_list = 229170; | |
135 optional WifiCredentialSpecifics wifi_credential = 218175; | |
136 optional AutofillWalletSpecifics autofill_wallet = 306270; | |
137 optional WalletMetadataSpecifics wallet_metadata = 330441; | |
138 optional ArcPackageSpecifics arc_package = 340906; | |
139 } | |
140 | |
141 message SyncEntity { | |
142 // This item's identifier. In a commit of a new item, this will be a | |
143 // client-generated ID. If the commit succeeds, the server will generate | |
144 // a globally unique ID and return it to the committing client in the | |
145 // CommitResponse.EntryResponse. In the context of a GetUpdatesResponse, | |
146 // |id_string| is always the server generated ID. The original | |
147 // client-generated ID is preserved in the |originator_client_id| field. | |
148 // Present in both GetUpdatesResponse and CommitMessage. | |
149 optional string id_string = 1; | |
150 | |
151 // An id referencing this item's parent in the hierarchy. In a | |
152 // CommitMessage, it is accepted for this to be a client-generated temporary | |
153 // ID if there was a new created item with that ID appearing earlier | |
154 // in the message. In all other situations, it is a server ID. | |
155 // Present in both GetUpdatesResponse and CommitMessage. | |
156 optional string parent_id_string = 2; | |
157 | |
158 // old_parent_id is only set in commits and indicates the old server | |
159 // parent(s) to remove. When omitted, the old parent is the same as | |
160 // the new. | |
161 // Present only in CommitMessage. | |
162 optional string old_parent_id = 3; | |
163 | |
164 // The version of this item -- a monotonically increasing value that is | |
165 // maintained by for each item. If zero in a CommitMessage, the server | |
166 // will interpret this entity as a newly-created item and generate a | |
167 // new server ID and an initial version number. If nonzero in a | |
168 // CommitMessage, this item is treated as an update to an existing item, and | |
169 // the server will use |id_string| to locate the item. Then, if the item's | |
170 // current version on the server does not match |version|, the commit will | |
171 // fail for that item. The server will not update it, and will return | |
172 // a result code of CONFLICT. In a GetUpdatesResponse, |version| is | |
173 // always positive and indentifies the revision of the item data being sent | |
174 // to the client. | |
175 // Present in both GetUpdatesResponse and CommitMessage. | |
176 required int64 version = 4; | |
177 | |
178 // Last modification time (in java time milliseconds) | |
179 // Present in both GetUpdatesResponse and CommitMessage. | |
180 optional int64 mtime = 5; | |
181 | |
182 // Creation time. | |
183 // Present in both GetUpdatesResponse and CommitMessage. | |
184 optional int64 ctime = 6; | |
185 | |
186 // The name of this item. | |
187 // Historical note: | |
188 // Since November 2010, this value is no different from non_unique_name. | |
189 // Before then, server implementations would maintain a unique-within-parent | |
190 // value separate from its base, "non-unique" value. Clients had not | |
191 // depended on the uniqueness of the property since November 2009; it was | |
192 // removed from Chromium by http://codereview.chromium.org/371029 . | |
193 // Present in both GetUpdatesResponse and CommitMessage. | |
194 required string name = 7; | |
195 | |
196 // The name of this item. Same as |name|. | |
197 // |non_unique_name| should take precedence over the |name| value if both | |
198 // are supplied. For efficiency, clients and servers should avoid setting | |
199 // this redundant value. | |
200 // Present in both GetUpdatesResponse and CommitMessage. | |
201 optional string non_unique_name = 8; | |
202 | |
203 // A value from a monotonically increasing sequence that indicates when | |
204 // this item was last updated on the server. This is now equivalent | |
205 // to version. This is now deprecated in favor of version. | |
206 // Present only in GetUpdatesResponse. | |
207 optional int64 sync_timestamp = 9; | |
208 | |
209 // If present, this tag identifies this item as being a uniquely | |
210 // instanced item. The server ensures that there is never more | |
211 // than one entity in a user's store with the same tag value. | |
212 // This value is used to identify and find e.g. the "Google Chrome" settings | |
213 // folder without relying on it existing at a particular path, or having | |
214 // a particular name, in the data store. | |
215 // | |
216 // This variant of the tag is created by the server, so clients can't create | |
217 // an item with a tag using this field. | |
218 // | |
219 // Use client_defined_unique_tag if you want to create one from the client. | |
220 // | |
221 // An item can't have both a client_defined_unique_tag and | |
222 // a server_defined_unique_tag. | |
223 // | |
224 // Present only in GetUpdatesResponse. | |
225 optional string server_defined_unique_tag = 10; | |
226 | |
227 // If this group is present, it implies that this SyncEntity corresponds to | |
228 // a bookmark or a bookmark folder. | |
229 // | |
230 // This group is deprecated; clients should use the bookmark EntitySpecifics | |
231 // protocol buffer extension instead. | |
232 optional group BookmarkData = 11 { | |
233 // We use a required field to differentiate between a bookmark and a | |
234 // bookmark folder. | |
235 // Present in both GetUpdatesMessage and CommitMessage. | |
236 required bool bookmark_folder = 12; | |
237 | |
238 // For bookmark objects, contains the bookmark's URL. | |
239 // Present in both GetUpdatesResponse and CommitMessage. | |
240 optional string bookmark_url = 13; | |
241 | |
242 // For bookmark objects, contains the bookmark's favicon. The favicon is | |
243 // represented as a 16X16 PNG image. | |
244 // Present in both GetUpdatesResponse and CommitMessage. | |
245 optional bytes bookmark_favicon = 14; | |
246 } | |
247 | |
248 // Supplies a numeric position for this item, relative to other items with the | |
249 // same parent. Deprecated in M26, though clients are still required to set | |
250 // it. | |
251 // | |
252 // Present in both GetUpdatesResponse and CommitMessage. | |
253 // | |
254 // At one point this was used as an alternative / supplement to | |
255 // the deprecated |insert_after_item_id|, but now it, too, has been | |
256 // deprecated. | |
257 // | |
258 // In order to maintain compatibility with older clients, newer clients should | |
259 // still set this field. Its value should be based on the first 8 bytes of | |
260 // this item's |unique_position|. | |
261 // | |
262 // Nerwer clients must also support the receipt of items that contain | |
263 // |position_in_parent| but no |unique_position|. They should locally convert | |
264 // the given int64 position to a UniquePosition. | |
265 // | |
266 // The conversion from int64 to UniquePosition is as follows: | |
267 // The int64 value will have its sign bit flipped then placed in big endian | |
268 // order as the first 8 bytes of the UniquePosition. The subsequent bytes of | |
269 // the UniquePosition will consist of the item's unique suffix. | |
270 // | |
271 // Conversion from UniquePosition to int64 reverses this process: the first 8 | |
272 // bytes of the position are to be interpreted as a big endian int64 value | |
273 // with its sign bit flipped. | |
274 optional int64 position_in_parent = 15; | |
275 | |
276 // Contains the ID of the element (under the same parent) after which this | |
277 // element resides. An empty string indicates that the element is the first | |
278 // element in the parent. This value is used during commits to specify | |
279 // a relative position for a position change. In the context of | |
280 // a GetUpdatesMessage, |position_in_parent| is used instead to | |
281 // communicate position. | |
282 // | |
283 // Present only in CommitMessage. | |
284 // | |
285 // This is deprecated. Clients are allowed to omit this as long as they | |
286 // include |position_in_parent| instead. | |
287 optional string insert_after_item_id = 16; | |
288 | |
289 // Arbitrary key/value pairs associated with this item. | |
290 // Present in both GetUpdatesResponse and CommitMessage. | |
291 // Deprecated. | |
292 // optional ExtendedAttributes extended_attributes = 17; | |
293 | |
294 // If true, indicates that this item has been (or should be) deleted. | |
295 // Present in both GetUpdatesResponse and CommitMessage. | |
296 optional bool deleted = 18 [default = false]; | |
297 | |
298 // A GUID that identifies the the sync client who initially committed | |
299 // this entity. This value corresponds to |cache_guid| in CommitMessage. | |
300 // This field, along with |originator_client_item_id|, can be used to | |
301 // reunite the original with its official committed version in the case | |
302 // where a client does not receive or process the commit response for | |
303 // some reason. | |
304 // | |
305 // Present only in GetUpdatesResponse. | |
306 // | |
307 // This field is also used in determining the unique identifier used in | |
308 // bookmarks' unique_position field. | |
309 optional string originator_cache_guid = 19; | |
310 | |
311 // The local item id of this entry from the client that initially | |
312 // committed this entity. Typically a negative integer. | |
313 // Present only in GetUpdatesResponse. | |
314 // | |
315 // This field is also used in determinging the unique identifier used in | |
316 // bookmarks' unique_position field. | |
317 optional string originator_client_item_id = 20; | |
318 | |
319 // Extensible container for datatype-specific data. | |
320 // This became available in version 23 of the protocol. | |
321 optional EntitySpecifics specifics = 21; | |
322 | |
323 // Indicate whether this is a folder or not. Available in version 23+. | |
324 optional bool folder = 22 [default = false]; | |
325 | |
326 // A client defined unique hash for this entity. | |
327 // Similar to server_defined_unique_tag. | |
328 // | |
329 // When initially committing an entity, a client can request that the entity | |
330 // is unique per that account. To do so, the client should specify a | |
331 // client_defined_unique_tag. At most one entity per tag value may exist. | |
332 // per account. The server will enforce uniqueness on this tag | |
333 // and fail attempts to create duplicates of this tag. | |
334 // Will be returned in any updates for this entity. | |
335 // | |
336 // The difference between server_defined_unique_tag and | |
337 // client_defined_unique_tag is the creator of the entity. Server defined | |
338 // tags are entities created by the server at account creation, | |
339 // while client defined tags are entities created by the client at any time. | |
340 // | |
341 // During GetUpdates, a sync entity update will come back with ONE of: | |
342 // a) Originator and cache id - If client committed the item as non "unique" | |
343 // b) Server tag - If server committed the item as unique | |
344 // c) Client tag - If client committed the item as unique | |
345 // | |
346 // May be present in CommitMessages for the initial creation of an entity. | |
347 // If present in Commit updates for the entity, it will be ignored. | |
348 // | |
349 // Available in version 24+. | |
350 // | |
351 // May be returned in GetUpdatesMessage and sent up in CommitMessage. | |
352 // | |
353 optional string client_defined_unique_tag = 23; | |
354 | |
355 // This positioning system had a relatively short life. It was made obsolete | |
356 // by |unique_position| before either the client or server made much of an | |
357 // attempt to support it. In fact, no client ever read or set this field. | |
358 // | |
359 // Deprecated in M26. | |
360 optional bytes ordinal_in_parent = 24; | |
361 | |
362 // This is the fourth attempt at positioning. | |
363 // | |
364 // This field is present in both GetUpdatesResponse and CommitMessage, if the | |
365 // item's type requires it and the client that wrote the item supports it (M26 | |
366 // or higher). Clients must also be prepared to handle updates from clients | |
367 // that do not set this field. See the comments on | |
368 // |server_position_in_parent| for more information on how this is handled. | |
369 // | |
370 // This field will not be set for items whose type ignores positioning. | |
371 // Clients should not attempt to read this field on the receipt of an item of | |
372 // a type that ignores positioning. | |
373 // | |
374 // Refer to its definition in unique_position.proto for more information about | |
375 // its internal representation. | |
376 optional UniquePosition unique_position = 25; | |
377 | |
378 // Attachment ids of attachments associated with this SyncEntity. | |
379 repeated AttachmentIdProto attachment_id = 26; | |
380 }; | |
381 | |
382 // This message contains diagnostic information used to correlate | |
383 // commit-related traffic with extensions-related mutations to the | |
384 // data models in chromium. It plays no functional role in | |
385 // processing this CommitMessage. | |
386 message ChromiumExtensionsActivity { | |
387 // The human-readable ID identifying the extension responsible | |
388 // for the traffic reported in this ChromiumExtensionsActivity. | |
389 optional string extension_id = 1; | |
390 | |
391 // How many times the extension successfully invoked a write | |
392 // operation through the bookmarks API since the last CommitMessage. | |
393 optional uint32 bookmark_writes_since_last_commit = 2; | |
394 }; | |
395 | |
396 // Client specific configuration information. | |
397 message ClientConfigParams { | |
398 // The set of data types this client has enabled. Note that this does not | |
399 // include proxy types, as they do not have protocol field numbers and are | |
400 // placeholder types that implicitly enable protocol types. | |
401 repeated int32 enabled_type_ids = 1; | |
402 | |
403 // Whether the PROXY_TABS proxy datatype is enabled on this client. | |
404 optional bool tabs_datatype_enabled = 2; | |
405 | |
406 // Whether the account(s) present in the content area's cookie jar match the | |
407 // chrome account. If multiple accounts are present in the cookie jar, a | |
408 // mismatch implies all of them are different from the chrome account. | |
409 optional bool cookie_jar_mismatch = 3; | |
410 }; | |
411 | |
412 message CommitMessage { | |
413 repeated SyncEntity entries = 1; | |
414 | |
415 // A GUID that identifies the committing sync client. This value will be | |
416 // returned as originator_cache_guid for any new items. | |
417 optional string cache_guid = 2; | |
418 | |
419 repeated ChromiumExtensionsActivity extensions_activity = 3; | |
420 | |
421 // The configuration of this client at commit time. Used by the server to | |
422 // make commit-time decisions about how to process datatypes that might | |
423 // involve server-side interaction, and e.g require explicit user intent for | |
424 // syncing a particular data type regardless of whether a commit for that | |
425 // datatype is currently being sent up. | |
426 optional ClientConfigParams config_params = 4; | |
427 | |
428 // Set of optional per-client datatype contexts. | |
429 repeated DataTypeContext client_contexts = 5; | |
430 }; | |
431 | |
432 // This message communicates additional per-type information related to | |
433 // requests with origin GU_TRIGGER. This message is not relevant when any | |
434 // other origin value is used. | |
435 // Introduced in M29. | |
436 message GetUpdateTriggers { | |
437 // An opaque-to-the-client string of bytes, received through a notification, | |
438 // that the server may interpret as a hint about the location of the latest | |
439 // version of the data for this type. | |
440 // | |
441 // Note that this will eventually replace the 'optional' field of the same | |
442 // name defined in the progress marker, but the client and server should | |
443 // support both until it's safe to deprecate the old one. | |
444 // | |
445 // This field was introduced in M29. | |
446 repeated string notification_hint = 1; | |
447 | |
448 // This flag is set if the client was forced to drop hints because the number | |
449 // of queued hints exceeded its limit. The oldest hints will be discarded | |
450 // first. Introduced in M29. | |
451 optional bool client_dropped_hints = 2; | |
452 | |
453 // This flag is set when the client suspects that its list of invalidation | |
454 // hints may be incomplete. This may be the case if: | |
455 // - The client is syncing for the first time. | |
456 // - The client has just restarted and it was unable to keep track of | |
457 // invalidations that were received prior to the restart. | |
458 // - The client's connection to the invalidation server is currently or | |
459 // was recently broken. | |
460 // | |
461 // It's difficult to provide more details here. This is implemented by | |
462 // setting the flag to false whenever anything that might adversely affect | |
463 // notifications happens (eg. a crash, restart on a platform that doesn't | |
464 // support invalidation ack-tracking, transient invalidation error) and is | |
465 // unset only after we've experienced one successful sync cycle while | |
466 // notifications were enabled. | |
467 // | |
468 // This flag was introduced in M29. | |
469 optional bool invalidations_out_of_sync = 3; | |
470 | |
471 // This counts the number of times the syncer has been asked to commit | |
472 // changes for this type since the last successful sync cycle. The number of | |
473 // nudges may not be related to the actual number of items modified. It | |
474 // often correlates with the number of user actions, but that's not always | |
475 // the case. | |
476 // Introduced in M29. | |
477 optional int64 local_modification_nudges = 4; | |
478 | |
479 // This counts the number of times the syncer has been explicitly asked to | |
480 // fetch updates for this type since the last successful sync cycle. These | |
481 // explicit refresh requests should be relatively rare on most platforms, and | |
482 // associated with user actions. For example, at the time of this writing | |
483 // the most common (only?) source of refresh requests is when a user opens | |
484 // the new tab page on a platform that does not support sessions | |
485 // invalidations. | |
486 // Introduced in M29. | |
487 optional int64 datatype_refresh_nudges = 5; | |
488 | |
489 // This flag is set if the invalidation server reports that it may have | |
490 // dropped some invalidations at some point. Introduced in M33. | |
491 optional bool server_dropped_hints = 6; | |
492 | |
493 // This flag is set if this GetUpdate request is due at least in part due | |
494 // to the fact that this type has not finished initial sync yet, and the | |
495 // client would like to initialize itself with the server data. | |
496 // | |
497 // Only some types support performing an initial sync as part of a normal | |
498 // GetUpdate request. Many types must be in configure mode when fetching | |
499 // initial sync data. | |
500 // | |
501 // Introduced in M38. | |
502 optional bool initial_sync_in_progress = 7; | |
503 | |
504 // This flag is set if this GetUpdate request is due to client receiving | |
505 // conflict response from server, so client needs to sync and then resolve | |
506 // conflict locally, and then commit again. | |
507 // | |
508 // Introduced in M42. | |
509 optional bool sync_for_resolve_conflict_in_progress = 8; | |
510 } | |
511 | |
512 message GarbageCollectionDirective { | |
513 enum Type { | |
514 UNKNOWN = 0; | |
515 VERSION_WATERMARK = 1; | |
516 AGE_WATERMARK = 2; | |
517 MAX_ITEM_COUNT = 3; | |
518 } | |
519 | |
520 optional Type type = 1 [default = UNKNOWN]; | |
521 | |
522 // This field specifies the watermark for the versions which should get | |
523 // garbage collected. The client should purge all sync entities with a | |
524 // version smaller than version_watermark locally. | |
525 optional int64 version_watermark = 2; | |
526 | |
527 // This field specifies the watermark in terms of age in days. The client | |
528 // should purge all sync entities which are older than this specific value | |
529 // based on last modified time. | |
530 optional int32 age_watermark_in_days = 3; | |
531 | |
532 // This field specifies the max number of items that the client should keep | |
533 // for a specific datatype. If the number of items exceeds this limit, the | |
534 // client should purge the extra sync entities based on the LRU rule. | |
535 optional int32 max_number_of_items = 4; | |
536 } | |
537 | |
538 message DataTypeProgressMarker { | |
539 // An integer identifying the data type whose progress is tracked by this | |
540 // marker. The legitimate values of this field correspond to the protobuf | |
541 // field numbers of all EntitySpecifics fields supported by the server. | |
542 // These values are externally declared in per-datatype .proto files. | |
543 optional int32 data_type_id = 1; | |
544 | |
545 // An opaque-to-the-client sequence of bytes that the server may interpret | |
546 // as an indicator of the client's knowledge state. If this is empty or | |
547 // omitted by the client, it indicates that the client is initiating a | |
548 // a first-time sync of this datatype. Otherwise, clients must supply a | |
549 // value previously returned by the server in an earlier GetUpdatesResponse. | |
550 // These values are not comparable or generable on the client. | |
551 // | |
552 // The opaque semantics of this field are to afford server implementations | |
553 // some flexibility in implementing progress tracking. For instance, | |
554 // a server implementation built on top of a distributed storage service -- | |
555 // or multiple heterogenous such services -- might need to supply a vector | |
556 // of totally ordered monotonic update timestamps, rather than a single | |
557 // monotonically increasing value. Other optimizations may also be | |
558 // possible if the server is allowed to embed arbitrary information in | |
559 // the progress token. | |
560 // | |
561 // Server implementations should keep the size of these tokens relatively | |
562 // small, on the order of tens of bytes, and they should remain small | |
563 // regardless of the number of items synchronized. (A possible bad server | |
564 // implementation would be for progress_token to contain a list of all the | |
565 // items ever sent to the client. Servers shouldn't do this.) | |
566 optional bytes token = 2; | |
567 | |
568 // Clients that previously downloaded updates synced using the timestamp based | |
569 // progress tracking mechanism, but which wish to switch over to the opaque | |
570 // token mechanism can set this field in a GetUpdatesMessage. The server | |
571 // will perform a get updates operation as normal from the indicated | |
572 // timestamp, and return only an opaque progress token. | |
573 optional int64 timestamp_token_for_migration = 3; | |
574 | |
575 // An opaque-to-the-client string of bytes, received through a notification, | |
576 // that the server may interpret as a hint about the location of the latest | |
577 // version of the data for this type. | |
578 // | |
579 // Deprecated in M29. We should use the repeated field version in the | |
580 // PerClientTypeState instead. | |
581 optional string notification_hint = 4; | |
582 | |
583 // This field will be included only in GetUpdates with origin GU_TRIGGER. | |
584 optional GetUpdateTriggers get_update_triggers = 5; | |
585 | |
586 // The garbage collection directive for this data type. The client should | |
587 // purge items locally based on this directive. Since this directive is | |
588 // designed to be sent from server only, the client should persist it locally | |
589 // as needed and avoid sending it to the server. | |
590 optional GarbageCollectionDirective gc_directive = 6; | |
591 } | |
592 | |
593 message GetUpdatesMessage { | |
594 // Indicates the client's current progress in downloading updates. A | |
595 // from_timestamp value of zero means that the client is requesting a first- | |
596 // time sync. After that point, clients should fill in this value with the | |
597 // value returned in the last-seen GetUpdatesResponse.new_timestamp. | |
598 // | |
599 // from_timestamp has been deprecated; clients should use | |
600 // |from_progress_marker| instead, which allows more flexibility. | |
601 optional int64 from_timestamp = 1; | |
602 | |
603 // Indicates the reason for the GetUpdatesMessage. | |
604 // Deprecated in M29. We should eventually rely on GetUpdatesOrigin instead. | |
605 // Newer clients will support both systems during the transition period. | |
606 optional GetUpdatesCallerInfo caller_info = 2; | |
607 | |
608 // Indicates whether related folders should be fetched. | |
609 optional bool fetch_folders = 3 [default = true]; | |
610 | |
611 // The presence of an individual EntitySpecifics field indicates that the | |
612 // client requests sync object types associated with that field. This | |
613 // determination depends only on the presence of the field, not its | |
614 // contents -- thus clients should send empty messages as the field value. | |
615 // For backwards compatibility only bookmark objects will be sent to the | |
616 // client should requested_types not be present. | |
617 // | |
618 // requested_types may contain multiple EntitySpecifics fields -- in this | |
619 // event, the server will return items of all the indicated types. | |
620 // | |
621 // requested_types has been deprecated; clients should use | |
622 // |from_progress_marker| instead, which allows more flexibility. | |
623 optional EntitySpecifics requested_types = 4; | |
624 | |
625 // Client-requested limit on the maximum number of updates to return at once. | |
626 // The server may opt to return fewer updates than this amount, but it should | |
627 // not return more. | |
628 optional int32 batch_size = 5; | |
629 | |
630 // Per-datatype progress marker. If present, the server will ignore | |
631 // the values of requested_types and from_timestamp, using this instead. | |
632 // | |
633 // With the exception of certain configuration or initial sync requests, the | |
634 // client should include one instance of this field for each enabled data | |
635 // type. | |
636 repeated DataTypeProgressMarker from_progress_marker = 6; | |
637 | |
638 // Indicates whether the response should be sent in chunks. This may be | |
639 // needed for devices with limited memory resources. If true, the response | |
640 // will include one or more ClientToServerResponses, with the frist one | |
641 // containing GetUpdatesMetadataResponse, and the remaining ones, if any, | |
642 // containing GetUpdatesStreamingResponse. These ClientToServerResponses are | |
643 // delimited by a length prefix, which is encoded as a varint. | |
644 optional bool streaming = 7 [default = false]; | |
645 | |
646 // Whether the client needs the server to provide an encryption key for this | |
647 // account. | |
648 // Note: this should typically only be set on the first GetUpdates a client | |
649 // requests. Clients are expected to persist the encryption key from then on. | |
650 // The allowed frequency for requesting encryption keys is much lower than | |
651 // other datatypes, so repeated usage will likely result in throttling. | |
652 optional bool need_encryption_key = 8 [default = false]; | |
653 | |
654 // Whether to create the mobile bookmarks folder if it's not | |
655 // already created. Should be set to true only by mobile clients. | |
656 optional bool create_mobile_bookmarks_folder = 1000 [default = false]; | |
657 | |
658 // This value is an updated version of the GetUpdatesCallerInfo's | |
659 // GetUpdatesSource. It describes the reason for the GetUpdate request. | |
660 // Introduced in M29. | |
661 optional SyncEnums.GetUpdatesOrigin get_updates_origin = 9; | |
662 | |
663 // Whether this GU also serves as a retry GU. Any GU that happens after | |
664 // retry timer timeout is a retry GU effectively. | |
665 optional bool is_retry = 10 [default = false]; | |
666 | |
667 // Set of optional per-client datatype contexts. | |
668 repeated DataTypeContext client_contexts = 11; | |
669 }; | |
670 | |
671 message AuthenticateMessage { | |
672 required string auth_token = 1; | |
673 }; | |
674 | |
675 // Message from a client asking the server to clear its data. | |
676 // | |
677 // A client makes a ClearServerData request when it transitions to passphrase | |
678 // encryption to ensure the server deletes any plaintext data that may have been | |
679 // synced previously. | |
680 message ClearServerDataMessage { | |
681 // No arguments needed as the store birthday and user identifier are part of | |
682 // an enclosing message. | |
683 }; | |
684 | |
685 // Response to a ClearServerData request. | |
686 message ClearServerDataResponse { | |
687 // No result fields necessary. Success/failure is indicated in | |
688 // ClientToServerResponse. | |
689 }; | |
690 | |
691 message DeprecatedMessage1 { | |
692 }; | |
693 | |
694 message DeprecatedMessage2 { | |
695 }; | |
696 | |
697 // The client must preserve, store, and resend the chip bag with | |
698 // every request. The server depends on the chip bag in order | |
699 // to precisely choreograph a client-server state machines. | |
700 // | |
701 // Because the client stores and sends this data on every request, | |
702 // the contents of the chip bag should be kept relatively small. | |
703 // | |
704 // If the server does not return a chip bag, the client must assume | |
705 // that there has been no change to the chip bag. The client must | |
706 // resend the bag of chips it had prior on the next request. | |
707 // | |
708 // The client must make the chip bag durable if and only if it | |
709 // processes the response from the server. | |
710 message ChipBag { | |
711 // Server chips are deliberately oqaque, allowing the server | |
712 // to encapsulate its state machine logic. | |
713 optional bytes server_chips = 1; | |
714 } | |
715 | |
716 // Information about the syncer's state. | |
717 message ClientStatus { | |
718 // Flag to indicate if the client has detected hierarchy conflcits. The flag | |
719 // is left unset if update application has not been attempted yet. | |
720 // | |
721 // The server should attempt to resolve any hierarchy conflicts when this flag | |
722 // is set. The client may not assume that any particular action will be | |
723 // taken. There is no guarantee the problem will be addressed in a reasonable | |
724 // amount of time. | |
725 optional bool hierarchy_conflict_detected = 1; | |
726 } | |
727 | |
728 // A single datatype's sync context. Allows the datatype to pass along | |
729 // datatype specific information with its own server backend. | |
730 message DataTypeContext { | |
731 // The type this context is associated with. | |
732 optional int32 data_type_id = 1; | |
733 // The context for the datatype. | |
734 optional bytes context = 2; | |
735 // The version of the context. | |
736 optional int64 version = 3; | |
737 } | |
738 | |
739 message ClientToServerMessage { | |
740 // |share| field is only used on the server for logging and can sometimes | |
741 // contain empty string. It is still useful for logging username when it can't | |
742 // be derived from access token in case of auth error. | |
743 required string share = 1; | |
744 | |
745 optional int32 protocol_version = 2 [default = 52]; | |
746 enum Contents { | |
747 COMMIT = 1; | |
748 GET_UPDATES = 2; | |
749 AUTHENTICATE = 3; | |
750 DEPRECATED_4 = 4; | |
751 CLEAR_SERVER_DATA = 5; | |
752 } | |
753 | |
754 // Each ClientToServerMessage contains one request defined by the | |
755 // message_contents. Each type has a corresponding message field that will be | |
756 // present iff the message is of that type. E.g. a commit message will have a | |
757 // message_contents of COMMIT and its commit field will be present. | |
758 required Contents message_contents = 3; | |
759 optional CommitMessage commit = 4; | |
760 optional GetUpdatesMessage get_updates = 5; | |
761 optional AuthenticateMessage authenticate = 6; | |
762 | |
763 optional DeprecatedMessage1 deprecated_field_9 = 9 [deprecated = true]; | |
764 | |
765 optional string store_birthday = 7; // Opaque store ID; if it changes, duck! | |
766 // The client sets this if it detects a sync issue. The server will tell it | |
767 // if it should perform a refresh. | |
768 optional bool sync_problem_detected = 8 [default = false]; | |
769 | |
770 // Client side state information for debugging purpose. | |
771 // This is only sent on the first getupdates of every sync cycle, | |
772 // as an optimization to save bandwidth. | |
773 optional DebugInfo debug_info = 10; | |
774 | |
775 // Per-client state for use by the server. Sent with every message sent to the | |
776 // server. | |
777 optional ChipBag bag_of_chips = 11; | |
778 | |
779 // Google API key. | |
780 optional string api_key = 12; | |
781 | |
782 // Client's self-reported state. | |
783 // The client should set this on every message sent to the server, though its | |
784 // member fields may often be unset. | |
785 optional ClientStatus client_status = 13; | |
786 | |
787 // The ID that our invalidation client used to identify itself to the server. | |
788 // Sending the ID here allows the server to not send notifications of our own | |
789 // changes to our invalidator. | |
790 optional string invalidator_client_id = 14; | |
791 | |
792 // Identifies this ClientToServerMessage as a clear server data request. This | |
793 // field is present when message_contents is CLEAR_SERVER_DATA. | |
794 optional ClearServerDataMessage clear_server_data = 15; | |
795 }; | |
796 | |
797 // This request allows the client to convert a specific crash identifier | |
798 // into more general information (e.g. hash of the crashing call stack) | |
799 // suitable for upload in an (authenticated) DebugInfo event. | |
800 message GetCrashInfoRequest { | |
801 // Id of the uploaded crash. | |
802 optional string crash_id = 1; | |
803 | |
804 // Time that the crash occurred. | |
805 optional int64 crash_time_millis = 2; | |
806 } | |
807 | |
808 // Proto to be written in its entirety to the debug info log. | |
809 message GetCrashInfoResponse { | |
810 // Hash of the crashing call stack. | |
811 optional string stack_id = 1; | |
812 | |
813 // Time of the crash, potentially rounded to remove | |
814 // significant bits. | |
815 optional int64 crash_time_millis = 2; | |
816 } | |
817 | |
818 message CommitResponse { | |
819 enum ResponseType { | |
820 SUCCESS = 1; | |
821 CONFLICT = 2; // You're out of date; update and check your data | |
822 // TODO(ncarter): What's the difference between RETRY and TRANSIENT_ERROR? | |
823 RETRY = 3; // Someone has a conflicting, non-expired session open | |
824 INVALID_MESSAGE = 4; // What the client sent was invalid, and trying again | |
825 // won't help. | |
826 OVER_QUOTA = 5; // This operation would put you, or you are, over quota | |
827 TRANSIENT_ERROR = 6; // Something went wrong; try again in a bit | |
828 } | |
829 repeated group EntryResponse = 1 { | |
830 required ResponseType response_type = 2; | |
831 | |
832 // Sync servers may also return a new ID for an existing item, indicating | |
833 // a new entry's been created to hold the data the client's sending up. | |
834 optional string id_string = 3; | |
835 | |
836 // should be filled if our parent was assigned a new ID. | |
837 optional string parent_id_string = 4; | |
838 | |
839 // This value is the same as the position_in_parent value returned within | |
840 // the SyncEntity message in GetUpdatesResponse. There was a time when the | |
841 // client would attempt to honor this position, but nowadays the server | |
842 // should ensure it is no different from the position_in_parent sent up in | |
843 // the commit request and the client should not read it. | |
844 optional int64 position_in_parent = 5; | |
845 | |
846 // The item's current version. | |
847 optional int64 version = 6; | |
848 | |
849 // Allows the server to move-aside an entry as it's being committed. | |
850 // This name is the same as the name field returned within the SyncEntity | |
851 // message in GetUpdatesResponse. | |
852 optional string name = 7; | |
853 | |
854 // This name is the same as the non_unique_name field returned within the | |
855 // SyncEntity message in GetUpdatesResponse. | |
856 optional string non_unique_name = 8; | |
857 | |
858 optional string error_message = 9; | |
859 | |
860 // Last modification time (in java time milliseconds). Allows the server | |
861 // to override the client-supplied mtime during a commit operation. | |
862 optional int64 mtime = 10; | |
863 } | |
864 }; | |
865 | |
866 message GetUpdatesResponse { | |
867 // New sync entries that the client should apply. | |
868 repeated SyncEntity entries = 1; | |
869 | |
870 // If there are more changes on the server that weren't processed during this | |
871 // GetUpdates request, the client should send another GetUpdates request and | |
872 // use new_timestamp as the from_timestamp value within GetUpdatesMessage. | |
873 // | |
874 // This field has been deprecated and will be returned only to clients | |
875 // that set the also-deprecated |from_timestamp| field in the update request. | |
876 // Clients should use |from_progress_marker| and |new_progress_marker| | |
877 // instead. | |
878 optional int64 new_timestamp = 2; | |
879 | |
880 // DEPRECATED FIELD - server does not set this anymore. | |
881 optional int64 deprecated_newest_timestamp = 3; | |
882 | |
883 // Approximate count of changes remaining - use this for UI feedback. | |
884 // If present and zero, this estimate is firm: the server has no changes | |
885 // after the current batch. | |
886 optional int64 changes_remaining = 4; | |
887 | |
888 // Opaque, per-datatype timestamp-like tokens. A client should use this | |
889 // field in lieu of new_timestamp, which is deprecated in newer versions | |
890 // of the protocol. Clients should retain and persist the values returned | |
891 // in this field, and present them back to the server to indicate the | |
892 // starting point for future update requests. | |
893 // | |
894 // This will be sent only if the client provided |from_progress_marker| | |
895 // in the update request. | |
896 // | |
897 // The server may provide a new progress marker even if this is the end of | |
898 // the batch, or if there were no new updates on the server; and the client | |
899 // must save these. If the server does not provide a |new_progress_marker| | |
900 // value for a particular datatype, when the request provided a | |
901 // |from_progress_marker| value for that datatype, the client should | |
902 // interpret this to mean "no change from the previous state" and retain its | |
903 // previous progress-marker value for that datatype. | |
904 // | |
905 // Progress markers in the context of a response will never have the | |
906 // |timestamp_token_for_migration| field set. | |
907 repeated DataTypeProgressMarker new_progress_marker = 5; | |
908 | |
909 // The current encryption keys associated with this account. Will be set if | |
910 // the GetUpdatesMessage in the request had need_encryption_key == true or | |
911 // the server has updated the set of encryption keys (e.g. due to a key | |
912 // rotation). | |
913 repeated bytes encryption_keys = 6; | |
914 | |
915 // Set of optional datatype contexts server mutations. | |
916 repeated DataTypeContext context_mutations = 7; | |
917 }; | |
918 | |
919 // The metadata response for GetUpdatesMessage. This response is sent when | |
920 // streaming is set to true in the request. It is prefixed with a length | |
921 // delimiter, which is encoded in varint. | |
922 message GetUpdatesMetadataResponse { | |
923 // Approximate count of changes remaining. Detailed comment is available in | |
924 // GetUpdatesResponse. | |
925 optional int64 changes_remaining = 1; | |
926 | |
927 // Opaque, per-datatype timestamp-like tokens. Detailed comment is available | |
928 // in GetUpdatesResponse. | |
929 repeated DataTypeProgressMarker new_progress_marker = 2; | |
930 }; | |
931 | |
932 // The streaming response message for GetUpdatesMessage. This message is sent | |
933 // when streaming is set to true in the request. There may be multiple | |
934 // GetUpdatesStreamingResponse messages in a response. This type of messages | |
935 // is preceded by GetUpdatesMetadataResponse. It is prefixed with a length | |
936 // delimiter, which is encoded in varint. | |
937 message GetUpdatesStreamingResponse { | |
938 // New sync entries that the client should apply. | |
939 repeated SyncEntity entries = 1; | |
940 }; | |
941 | |
942 // A user-identifying struct. For a given Google account the email and display | |
943 // name can change, but obfuscated_id should be constant. | |
944 // The obfuscated id is optional because at least one planned use of the proto | |
945 // (sharing) does not require it. | |
946 message UserIdentification { | |
947 required string email = 1; // the user's full primary email address. | |
948 optional string display_name = 2; // the user's display name. | |
949 optional string obfuscated_id = 3; // an obfuscated, opaque user id. | |
950 }; | |
951 | |
952 message AuthenticateResponse { | |
953 // Optional only for backward compatibility. | |
954 optional UserIdentification user = 1; | |
955 }; | |
956 | |
957 message ThrottleParameters { | |
958 // Deprecated. Remove this from the server side. | |
959 required int32 min_measure_payload_size = 1; | |
960 required double target_utilization = 2; | |
961 required double measure_interval_max = 3; | |
962 required double measure_interval_min = 4; | |
963 required double observation_window = 5; | |
964 }; | |
965 | |
966 message ClientToServerResponse { | |
967 optional CommitResponse commit = 1; | |
968 optional GetUpdatesResponse get_updates = 2; | |
969 optional AuthenticateResponse authenticate = 3; | |
970 | |
971 // Up until protocol_version 24, the default was SUCCESS which made it | |
972 // impossible to add new enum values since older clients would parse any | |
973 // out-of-range value as SUCCESS. Starting with 25, unless explicitly set, | |
974 // the error_code will be UNKNOWN so that clients know when they're | |
975 // out-of-date. Note also that when using protocol_version < 25, | |
976 // TRANSIENT_ERROR is not supported. Instead, the server sends back a HTTP | |
977 // 400 error code. This is deprecated now. | |
978 optional SyncEnums.ErrorType error_code = 4 [default = UNKNOWN]; | |
979 optional string error_message = 5; | |
980 | |
981 // Opaque store ID; if it changes, the contents of the client's cache | |
982 // is meaningless to this server. This happens most typically when | |
983 // you switch from one storage backend instance (say, a test instance) | |
984 // to another (say, the official instance). | |
985 optional string store_birthday = 6; | |
986 | |
987 optional ClientCommand client_command = 7; | |
988 optional ProfilingData profiling_data = 8; | |
989 optional DeprecatedMessage2 deprecated_field_9 = 9 [deprecated = true]; | |
990 optional GetUpdatesMetadataResponse stream_metadata = 10; | |
991 // If GetUpdatesStreamingResponse is contained in the ClientToServerResponse, | |
992 // none of the other fields (error_code and etc) will be set. | |
993 optional GetUpdatesStreamingResponse stream_data = 11; | |
994 | |
995 // The data types whose storage has been migrated. Present when the value of | |
996 // error_code is MIGRATION_DONE. | |
997 repeated int32 migrated_data_type_id = 12; | |
998 | |
999 message Error { | |
1000 optional SyncEnums.ErrorType error_type = 1 [default = UNKNOWN]; | |
1001 optional string error_description = 2; | |
1002 optional string url = 3; | |
1003 optional SyncEnums.Action action = 4 [default = UNKNOWN_ACTION]; | |
1004 | |
1005 // Currently meaningful if |error_type| is throttled or partial_failure. | |
1006 // In the throttled case, if this field is absent then the whole client | |
1007 // (all datatypes) is throttled. | |
1008 // In the partial_failure case, this field denotes partial failures. The | |
1009 // client should retry those datatypes with exponential backoff. | |
1010 repeated int32 error_data_type_ids = 5; | |
1011 } | |
1012 optional Error error = 13; | |
1013 | |
1014 // The new per-client state for this client. If set, should be persisted and | |
1015 // sent with any subsequent ClientToServerMessages. | |
1016 optional ChipBag new_bag_of_chips = 14; | |
1017 | |
1018 // Present if this ClientToServerResponse is in response to a ClearServerData | |
1019 // request. | |
1020 optional ClearServerDataResponse clear_server_data = 15; | |
1021 }; | |
1022 | |
1023 // A message to notify the server of certain sync events. Idempotent. Send these | |
1024 // to the /event endpoint. | |
1025 message EventRequest { | |
1026 optional SyncDisabledEvent sync_disabled = 1; | |
1027 }; | |
1028 | |
1029 message EventResponse { | |
1030 }; | |
1031 | |
1032 // A message indicating that the sync engine has been disabled on a client. | |
1033 message SyncDisabledEvent { | |
1034 // The GUID that identifies the sync client. | |
1035 optional string cache_guid = 1; | |
1036 | |
1037 // The store birthday that the client was using before disabling sync. | |
1038 optional string store_birthday = 2; | |
1039 }; | |
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