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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 #ifndef CHROME_BROWSER_SYNC_INTERNAL_API_SYNC_MANAGER_H_ | |
| 6 #define CHROME_BROWSER_SYNC_INTERNAL_API_SYNC_MANAGER_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/callback_forward.h" | |
| 13 #include "base/file_path.h" | |
| 14 #include "base/memory/ref_counted.h" | |
| 15 #include "base/task_runner.h" | |
| 16 #include "base/threading/thread_checker.h" | |
| 17 #include "base/time.h" | |
| 18 #include "chrome/browser/sync/internal_api/change_record.h" | |
| 19 #include "chrome/browser/sync/internal_api/configure_reason.h" | |
| 20 #include "sync/protocol/sync_protocol_error.h" | |
| 21 #include "sync/syncable/model_type.h" | |
| 22 #include "sync/util/report_unrecoverable_error_function.h" | |
| 23 #include "sync/util/unrecoverable_error_handler.h" | |
| 24 #include "sync/util/weak_handle.h" | |
| 25 | |
| 26 namespace browser_sync { | |
| 27 class Encryptor; | |
| 28 class ExtensionsActivityMonitor; | |
| 29 class JsBackend; | |
| 30 class JsEventHandler; | |
| 31 class ModelSafeWorkerRegistrar; | |
| 32 | |
| 33 namespace sessions { | |
| 34 struct SyncSessionSnapshot; | |
| 35 } // namespace sessions | |
| 36 } // namespace browser_sync | |
| 37 | |
| 38 namespace sync_notifier { | |
| 39 class SyncNotifier; | |
| 40 } // namespace sync_notifier | |
| 41 | |
| 42 namespace sync_pb { | |
| 43 class EncryptedData; | |
| 44 } // namespace sync_pb | |
| 45 | |
| 46 namespace sync_api { | |
| 47 | |
| 48 class BaseTransaction; | |
| 49 class HttpPostProviderFactory; | |
| 50 struct UserShare; | |
| 51 | |
| 52 // Used by SyncManager::OnConnectionStatusChange(). | |
| 53 enum ConnectionStatus { | |
| 54 CONNECTION_OK, | |
| 55 CONNECTION_AUTH_ERROR, | |
| 56 CONNECTION_SERVER_ERROR | |
| 57 }; | |
| 58 | |
| 59 // Reasons due to which browser_sync::Cryptographer might require a passphrase. | |
| 60 enum PassphraseRequiredReason { | |
| 61 REASON_PASSPHRASE_NOT_REQUIRED = 0, // Initial value. | |
| 62 REASON_ENCRYPTION = 1, // The cryptographer requires a | |
| 63 // passphrase for its first attempt at | |
| 64 // encryption. Happens only during | |
| 65 // migration or upgrade. | |
| 66 REASON_DECRYPTION = 2, // The cryptographer requires a | |
| 67 // passphrase for its first attempt at | |
| 68 // decryption. | |
| 69 }; | |
| 70 | |
| 71 | |
| 72 // Contains everything needed to talk to and identify a user account. | |
| 73 struct SyncCredentials { | |
| 74 std::string email; | |
| 75 std::string sync_token; | |
| 76 }; | |
| 77 | |
| 78 // SyncManager encapsulates syncable::Directory and serves as the parent of all | |
| 79 // other objects in the sync API. If multiple threads interact with the same | |
| 80 // local sync repository (i.e. the same sqlite database), they should share a | |
| 81 // single SyncManager instance. The caller should typically create one | |
| 82 // SyncManager for the lifetime of a user session. | |
| 83 // | |
| 84 // Unless stated otherwise, all methods of SyncManager should be called on the | |
| 85 // same thread. | |
| 86 class SyncManager { | |
| 87 public: | |
| 88 // SyncInternal contains the implementation of SyncManager, while abstracting | |
| 89 // internal types from clients of the interface. | |
| 90 class SyncInternal; | |
| 91 | |
| 92 // Status encapsulates detailed state about the internals of the SyncManager. | |
| 93 struct Status { | |
| 94 Status(); | |
| 95 ~Status(); | |
| 96 | |
| 97 bool notifications_enabled; // True only if subscribed for notifications. | |
| 98 | |
| 99 // Notifications counters updated by the actions in synapi. | |
| 100 int notifications_received; | |
| 101 | |
| 102 browser_sync::SyncProtocolError sync_protocol_error; | |
| 103 | |
| 104 // Number of unsynced items counted at the start of most recent sync cycle. | |
| 105 int unsynced_count; | |
| 106 | |
| 107 // Number of encryption conflicts counted during most recent sync cycle. | |
| 108 int encryption_conflicts; | |
| 109 | |
| 110 // Number of hierarchy conflicts counted during most recent sync cycle. | |
| 111 int hierarchy_conflicts; | |
| 112 | |
| 113 // Number of simple conflicts counted during most recent sync cycle. | |
| 114 int simple_conflicts; | |
| 115 | |
| 116 // Number of items the server refused to commit due to conflict during most | |
| 117 // recent sync cycle. | |
| 118 int server_conflicts; | |
| 119 | |
| 120 // Number of items successfully committed during most recent sync cycle. | |
| 121 int committed_count; | |
| 122 | |
| 123 bool syncing; | |
| 124 // True after a client has done a first sync. | |
| 125 bool initial_sync_ended; | |
| 126 | |
| 127 // Total updates available. If zero, nothing left to download. | |
| 128 int64 updates_available; | |
| 129 // Total updates received by the syncer since browser start. | |
| 130 int updates_received; | |
| 131 // Total updates received that are echoes of our own changes. | |
| 132 int reflected_updates_received; | |
| 133 | |
| 134 // Of updates_received, how many were tombstones. | |
| 135 int tombstone_updates_received; | |
| 136 | |
| 137 // Total number of overwrites due to conflict resolver since browser start. | |
| 138 int num_local_overwrites_total; | |
| 139 int num_server_overwrites_total; | |
| 140 | |
| 141 // Count of empty and non empty getupdates; | |
| 142 int nonempty_get_updates; | |
| 143 int empty_get_updates; | |
| 144 | |
| 145 // Count of sync cycles that successfully committed items; | |
| 146 int sync_cycles_with_commits; | |
| 147 int sync_cycles_without_commits; | |
| 148 | |
| 149 // Count of useless and useful syncs we perform. | |
| 150 int useless_sync_cycles; | |
| 151 int useful_sync_cycles; | |
| 152 | |
| 153 // Encryption related. | |
| 154 syncable::ModelTypeSet encrypted_types; | |
| 155 bool cryptographer_ready; | |
| 156 bool crypto_has_pending_keys; | |
| 157 | |
| 158 // The unique identifer for this client. | |
| 159 std::string unique_id; | |
| 160 }; | |
| 161 | |
| 162 // An interface the embedding application implements to be notified | |
| 163 // on change events. Note that these methods may be called on *any* | |
| 164 // thread. | |
| 165 class ChangeDelegate { | |
| 166 public: | |
| 167 // Notify the delegate that changes have been applied to the sync model. | |
| 168 // | |
| 169 // This will be invoked on the same thread as on which ApplyChanges was | |
| 170 // called. |changes| is an array of size |change_count|, and contains the | |
| 171 // ID of each individual item that was changed. |changes| exists only for | |
| 172 // the duration of the call. If items of multiple data types change at | |
| 173 // the same time, this method is invoked once per data type and |changes| | |
| 174 // is restricted to items of the ModelType indicated by |model_type|. | |
| 175 // Because the observer is passed a |trans|, the observer can assume a | |
| 176 // read lock on the sync model that will be released after the function | |
| 177 // returns. | |
| 178 // | |
| 179 // The SyncManager constructs |changes| in the following guaranteed order: | |
| 180 // | |
| 181 // 1. Deletions, from leaves up to parents. | |
| 182 // 2. Updates to existing items with synced parents & predecessors. | |
| 183 // 3. New items with synced parents & predecessors. | |
| 184 // 4. Items with parents & predecessors in |changes|. | |
| 185 // 5. Repeat #4 until all items are in |changes|. | |
| 186 // | |
| 187 // Thus, an implementation of OnChangesApplied should be able to | |
| 188 // process the change records in the order without having to worry about | |
| 189 // forward dependencies. But since deletions come before reparent | |
| 190 // operations, a delete may temporarily orphan a node that is | |
| 191 // updated later in the list. | |
| 192 virtual void OnChangesApplied( | |
| 193 syncable::ModelType model_type, | |
| 194 const BaseTransaction* trans, | |
| 195 const ImmutableChangeRecordList& changes) = 0; | |
| 196 | |
| 197 // OnChangesComplete gets called when the TransactionComplete event is | |
| 198 // posted (after OnChangesApplied finishes), after the transaction lock | |
| 199 // and the change channel mutex are released. | |
| 200 // | |
| 201 // The purpose of this function is to support processors that require | |
| 202 // split-transactions changes. For example, if a model processor wants to | |
| 203 // perform blocking I/O due to a change, it should calculate the changes | |
| 204 // while holding the transaction lock (from within OnChangesApplied), buffer | |
| 205 // those changes, let the transaction fall out of scope, and then commit | |
| 206 // those changes from within OnChangesComplete (postponing the blocking | |
| 207 // I/O to when it no longer holds any lock). | |
| 208 virtual void OnChangesComplete(syncable::ModelType model_type) = 0; | |
| 209 | |
| 210 protected: | |
| 211 virtual ~ChangeDelegate(); | |
| 212 }; | |
| 213 | |
| 214 // Like ChangeDelegate, except called only on the sync thread and | |
| 215 // not while a transaction is held. For objects that want to know | |
| 216 // when changes happen, but don't need to process them. | |
| 217 class ChangeObserver { | |
| 218 public: | |
| 219 // Ids referred to in |changes| may or may not be in the write | |
| 220 // transaction specified by |write_transaction_id|. If they're | |
| 221 // not, that means that the node didn't actually change, but we | |
| 222 // marked them as changed for some other reason (e.g., siblings of | |
| 223 // re-ordered nodes). | |
| 224 // | |
| 225 // TODO(sync, long-term): Ideally, ChangeDelegate/Observer would | |
| 226 // be passed a transformed version of EntryKernelMutation instead | |
| 227 // of a transaction that would have to be used to look up the | |
| 228 // changed nodes. That is, ChangeDelegate::OnChangesApplied() | |
| 229 // would still be called under the transaction, but all the needed | |
| 230 // data will be passed down. | |
| 231 // | |
| 232 // Even more ideally, we would have sync semantics such that we'd | |
| 233 // be able to apply changes without being under a transaction. | |
| 234 // But that's a ways off... | |
| 235 virtual void OnChangesApplied( | |
| 236 syncable::ModelType model_type, | |
| 237 int64 write_transaction_id, | |
| 238 const ImmutableChangeRecordList& changes) = 0; | |
| 239 | |
| 240 virtual void OnChangesComplete(syncable::ModelType model_type) = 0; | |
| 241 | |
| 242 protected: | |
| 243 virtual ~ChangeObserver(); | |
| 244 }; | |
| 245 | |
| 246 // An interface the embedding application implements to receive | |
| 247 // notifications from the SyncManager. Register an observer via | |
| 248 // SyncManager::AddObserver. All methods are called only on the | |
| 249 // sync thread. | |
| 250 class Observer { | |
| 251 public: | |
| 252 // A round-trip sync-cycle took place and the syncer has resolved any | |
| 253 // conflicts that may have arisen. | |
| 254 virtual void OnSyncCycleCompleted( | |
| 255 const browser_sync::sessions::SyncSessionSnapshot* snapshot) = 0; | |
| 256 | |
| 257 // Called when the status of the connection to the sync server has | |
| 258 // changed. | |
| 259 virtual void OnConnectionStatusChange(ConnectionStatus status) = 0; | |
| 260 | |
| 261 // Called when a new auth token is provided by the sync server. | |
| 262 virtual void OnUpdatedToken(const std::string& token) = 0; | |
| 263 | |
| 264 // Called when user interaction is required to obtain a valid passphrase. | |
| 265 // - If the passphrase is required for encryption, |reason| will be | |
| 266 // REASON_ENCRYPTION. | |
| 267 // - If the passphrase is required for the decryption of data that has | |
| 268 // already been encrypted, |reason| will be REASON_DECRYPTION. | |
| 269 // - If the passphrase is required because decryption failed, and a new | |
| 270 // passphrase is required, |reason| will be REASON_SET_PASSPHRASE_FAILED. | |
| 271 // | |
| 272 // |pending_keys| is a copy of the cryptographer's pending keys, that may be | |
| 273 // cached by the frontend for subsequent use by the UI. | |
| 274 virtual void OnPassphraseRequired( | |
| 275 PassphraseRequiredReason reason, | |
| 276 const sync_pb::EncryptedData& pending_keys) = 0; | |
| 277 | |
| 278 // Called when the passphrase provided by the user has been accepted and is | |
| 279 // now used to encrypt sync data. | |
| 280 virtual void OnPassphraseAccepted() = 0; | |
| 281 | |
| 282 // |bootstrap_token| is an opaque base64 encoded representation of the key | |
| 283 // generated by the current passphrase, and is provided to the observer for | |
| 284 // persistence purposes and use in a future initialization of sync (e.g. | |
| 285 // after restart). The boostrap token will always be derived from the most | |
| 286 // recent GAIA password (for accounts with implicit passphrases), even if | |
| 287 // the data is still encrypted with an older GAIA password. For accounts | |
| 288 // with explicit passphrases, it will be the most recently seen custom | |
| 289 // passphrase. | |
| 290 virtual void OnBootstrapTokenUpdated( | |
| 291 const std::string& bootstrap_token) = 0; | |
| 292 | |
| 293 // Called when initialization is complete to the point that SyncManager can | |
| 294 // process changes. This does not necessarily mean authentication succeeded | |
| 295 // or that the SyncManager is online. | |
| 296 // IMPORTANT: Creating any type of transaction before receiving this | |
| 297 // notification is illegal! | |
| 298 // WARNING: Calling methods on the SyncManager before receiving this | |
| 299 // message, unless otherwise specified, produces undefined behavior. | |
| 300 // | |
| 301 // |js_backend| is what about:sync interacts with. It can emit | |
| 302 // the following events: | |
| 303 | |
| 304 /** | |
| 305 * @param {{ enabled: boolean }} details A dictionary containing: | |
| 306 * - enabled: whether or not notifications are enabled. | |
| 307 */ | |
| 308 // function onNotificationStateChange(details); | |
| 309 | |
| 310 /** | |
| 311 * @param {{ changedTypes: Array.<string> }} details A dictionary | |
| 312 * containing: | |
| 313 * - changedTypes: a list of types (as strings) for which there | |
| 314 are new updates. | |
| 315 */ | |
| 316 // function onIncomingNotification(details); | |
| 317 | |
| 318 // Also, it responds to the following messages (all other messages | |
| 319 // are ignored): | |
| 320 | |
| 321 /** | |
| 322 * Gets the current notification state. | |
| 323 * | |
| 324 * @param {function(boolean)} callback Called with whether or not | |
| 325 * notifications are enabled. | |
| 326 */ | |
| 327 // function getNotificationState(callback); | |
| 328 | |
| 329 /** | |
| 330 * Gets details about the root node. | |
| 331 * | |
| 332 * @param {function(!Object)} callback Called with details about the | |
| 333 * root node. | |
| 334 */ | |
| 335 // TODO(akalin): Change this to getRootNodeId or eliminate it | |
| 336 // entirely. | |
| 337 // function getRootNodeDetails(callback); | |
| 338 | |
| 339 /** | |
| 340 * Gets summary information for a list of ids. | |
| 341 * | |
| 342 * @param {Array.<string>} idList List of 64-bit ids in decimal | |
| 343 * string form. | |
| 344 * @param {Array.<{id: string, title: string, isFolder: boolean}>} | |
| 345 * callback Called with summaries for the nodes in idList that | |
| 346 * exist. | |
| 347 */ | |
| 348 // function getNodeSummariesById(idList, callback); | |
| 349 | |
| 350 /** | |
| 351 * Gets detailed information for a list of ids. | |
| 352 * | |
| 353 * @param {Array.<string>} idList List of 64-bit ids in decimal | |
| 354 * string form. | |
| 355 * @param {Array.<!Object>} callback Called with detailed | |
| 356 * information for the nodes in idList that exist. | |
| 357 */ | |
| 358 // function getNodeDetailsById(idList, callback); | |
| 359 | |
| 360 /** | |
| 361 * Gets child ids for a given id. | |
| 362 * | |
| 363 * @param {string} id 64-bit id in decimal string form of the parent | |
| 364 * node. | |
| 365 * @param {Array.<string>} callback Called with the (possibly empty) | |
| 366 * list of child ids. | |
| 367 */ | |
| 368 // function getChildNodeIds(id); | |
| 369 | |
| 370 virtual void OnInitializationComplete( | |
| 371 const browser_sync::WeakHandle<browser_sync::JsBackend>& | |
| 372 js_backend, bool success) = 0; | |
| 373 | |
| 374 // We are no longer permitted to communicate with the server. Sync should | |
| 375 // be disabled and state cleaned up at once. This can happen for a number | |
| 376 // of reasons, e.g. swapping from a test instance to production, or a | |
| 377 // global stop syncing operation has wiped the store. | |
| 378 virtual void OnStopSyncingPermanently() = 0; | |
| 379 | |
| 380 // After a request to clear server data, these callbacks are invoked to | |
| 381 // indicate success or failure. | |
| 382 virtual void OnClearServerDataSucceeded() = 0; | |
| 383 virtual void OnClearServerDataFailed() = 0; | |
| 384 | |
| 385 // Called when the set of encrypted types or the encrypt | |
| 386 // everything flag has been changed. Note that encryption isn't | |
| 387 // complete until the OnEncryptionComplete() notification has been | |
| 388 // sent (see below). | |
| 389 // | |
| 390 // |encrypted_types| will always be a superset of | |
| 391 // Cryptographer::SensitiveTypes(). If |encrypt_everything| is | |
| 392 // true, |encrypted_types| will be the set of all known types. | |
| 393 // | |
| 394 // Until this function is called, observers can assume that the | |
| 395 // set of encrypted types is Cryptographer::SensitiveTypes() and | |
| 396 // that the encrypt everything flag is false. | |
| 397 // | |
| 398 // Called from within a transaction. | |
| 399 virtual void OnEncryptedTypesChanged( | |
| 400 syncable::ModelTypeSet encrypted_types, | |
| 401 bool encrypt_everything) = 0; | |
| 402 | |
| 403 // Called after we finish encrypting the current set of encrypted | |
| 404 // types. | |
| 405 // | |
| 406 // Called from within a transaction. | |
| 407 virtual void OnEncryptionComplete() = 0; | |
| 408 | |
| 409 virtual void OnActionableError( | |
| 410 const browser_sync::SyncProtocolError& sync_protocol_error) = 0; | |
| 411 | |
| 412 protected: | |
| 413 virtual ~Observer(); | |
| 414 }; | |
| 415 | |
| 416 enum TestingMode { | |
| 417 NON_TEST, | |
| 418 TEST_ON_DISK, | |
| 419 TEST_IN_MEMORY, | |
| 420 }; | |
| 421 | |
| 422 // Create an uninitialized SyncManager. Callers must Init() before using. | |
| 423 explicit SyncManager(const std::string& name); | |
| 424 virtual ~SyncManager(); | |
| 425 | |
| 426 // Initialize the sync manager. |database_location| specifies the path of | |
| 427 // the directory in which to locate a sqlite repository storing the syncer | |
| 428 // backend state. Initialization will open the database, or create it if it | |
| 429 // does not already exist. Returns false on failure. | |
| 430 // |event_handler| is the JsEventHandler used to propagate events to | |
| 431 // chrome://sync-internals. |event_handler| may be uninitialized. | |
| 432 // |sync_server_and_path| and |sync_server_port| represent the Chrome sync | |
| 433 // server to use, and |use_ssl| specifies whether to communicate securely; | |
| 434 // the default is false. | |
| 435 // |blocking_task_runner| is a TaskRunner to be used for tasks that | |
| 436 // may block on disk I/O. | |
| 437 // |post_factory| will be owned internally and used to create | |
| 438 // instances of an HttpPostProvider. | |
| 439 // |model_safe_worker| ownership is given to the SyncManager. | |
| 440 // |user_agent| is a 7-bit ASCII string suitable for use as the User-Agent | |
| 441 // HTTP header. Used internally when collecting stats to classify clients. | |
| 442 // |sync_notifier| is owned and used to listen for notifications. | |
| 443 // |report_unrecoverable_error_function| may be NULL. | |
| 444 bool Init(const FilePath& database_location, | |
| 445 const browser_sync::WeakHandle<browser_sync::JsEventHandler>& | |
| 446 event_handler, | |
| 447 const std::string& sync_server_and_path, | |
| 448 int sync_server_port, | |
| 449 bool use_ssl, | |
| 450 const scoped_refptr<base::TaskRunner>& blocking_task_runner, | |
| 451 HttpPostProviderFactory* post_factory, | |
| 452 browser_sync::ModelSafeWorkerRegistrar* registrar, | |
| 453 browser_sync::ExtensionsActivityMonitor* | |
| 454 extensions_activity_monitor, | |
| 455 ChangeDelegate* change_delegate, | |
| 456 const std::string& user_agent, | |
| 457 const SyncCredentials& credentials, | |
| 458 bool enable_sync_tabs_for_other_clients, | |
| 459 sync_notifier::SyncNotifier* sync_notifier, | |
| 460 const std::string& restored_key_for_bootstrapping, | |
| 461 TestingMode testing_mode, | |
| 462 browser_sync::Encryptor* encryptor, | |
| 463 browser_sync::UnrecoverableErrorHandler* | |
| 464 unrecoverable_error_handler, | |
| 465 browser_sync::ReportUnrecoverableErrorFunction | |
| 466 report_unrecoverable_error_function); | |
| 467 | |
| 468 // Throw an unrecoverable error from a transaction (mostly used for | |
| 469 // testing). | |
| 470 void ThrowUnrecoverableError(); | |
| 471 | |
| 472 // Check if the database has been populated with a full "initial" download of | |
| 473 // sync items for each data type currently present in the routing info. | |
| 474 // Prerequisite for calling this is that OnInitializationComplete has been | |
| 475 // called. May be called from any thread. | |
| 476 bool InitialSyncEndedForAllEnabledTypes(); | |
| 477 | |
| 478 // Update tokens that we're using in Sync. Email must stay the same. | |
| 479 void UpdateCredentials(const SyncCredentials& credentials); | |
| 480 | |
| 481 // Called when the user disables or enables a sync type. | |
| 482 void UpdateEnabledTypes(); | |
| 483 | |
| 484 // Conditionally sets the flag in the Nigori node which instructs other | |
| 485 // clients to start syncing tabs. | |
| 486 void MaybeSetSyncTabsInNigoriNode(syncable::ModelTypeSet enabled_types); | |
| 487 | |
| 488 // Put the syncer in normal mode ready to perform nudges and polls. | |
| 489 void StartSyncingNormally(); | |
| 490 | |
| 491 // Attempts to re-encrypt encrypted data types using the passphrase provided. | |
| 492 // Notifies observers of the result of the operation via OnPassphraseAccepted | |
| 493 // or OnPassphraseRequired, updates the nigori node, and does re-encryption as | |
| 494 // appropriate. If an explicit password has been set previously, we drop | |
| 495 // subsequent requests to set a passphrase. If the cryptographer has pending | |
| 496 // keys, and a new implicit passphrase is provided, we try decrypting the | |
| 497 // pending keys with it, and if that fails, we cache the passphrase for | |
| 498 // re-encryption once the pending keys are decrypted. | |
| 499 void SetEncryptionPassphrase(const std::string& passphrase, bool is_explicit); | |
| 500 | |
| 501 // Provides a passphrase for decrypting the user's existing sync data. | |
| 502 // Notifies observers of the result of the operation via OnPassphraseAccepted | |
| 503 // or OnPassphraseRequired, updates the nigori node, and does re-encryption as | |
| 504 // appropriate if there is a previously cached encryption passphrase. It is an | |
| 505 // error to call this when we don't have pending keys. | |
| 506 void SetDecryptionPassphrase(const std::string& passphrase); | |
| 507 | |
| 508 // Puts the SyncScheduler into a mode where no normal nudge or poll traffic | |
| 509 // will occur, but calls to RequestConfig will be supported. If |callback| | |
| 510 // is provided, it will be invoked (from the internal SyncScheduler) when | |
| 511 // the thread has changed to configuration mode. | |
| 512 void StartConfigurationMode(const base::Closure& callback); | |
| 513 | |
| 514 // Switches the mode of operation to CONFIGURATION_MODE and | |
| 515 // schedules a config task to fetch updates for |types|. | |
| 516 void RequestConfig(syncable::ModelTypeSet types, | |
| 517 sync_api::ConfigureReason reason); | |
| 518 | |
| 519 void RequestCleanupDisabledTypes(); | |
| 520 | |
| 521 // Request a clearing of all data on the server | |
| 522 void RequestClearServerData(); | |
| 523 | |
| 524 // Adds a listener to be notified of sync events. | |
| 525 // NOTE: It is OK (in fact, it's probably a good idea) to call this before | |
| 526 // having received OnInitializationCompleted. | |
| 527 void AddObserver(Observer* observer); | |
| 528 | |
| 529 // Remove the given observer. Make sure to call this if the | |
| 530 // Observer is being destroyed so the SyncManager doesn't | |
| 531 // potentially dereference garbage. | |
| 532 void RemoveObserver(Observer* observer); | |
| 533 | |
| 534 // Status-related getter. May be called on any thread. | |
| 535 Status GetDetailedStatus() const; | |
| 536 | |
| 537 // Whether or not the Nigori node is encrypted using an explicit passphrase. | |
| 538 // May be called on any thread. | |
| 539 bool IsUsingExplicitPassphrase(); | |
| 540 | |
| 541 // Call periodically from a database-safe thread to persist recent changes | |
| 542 // to the syncapi model. | |
| 543 void SaveChanges(); | |
| 544 | |
| 545 // Initiates shutdown of various components in the sync engine. Must be | |
| 546 // called from the main thread to allow preempting ongoing tasks on the sync | |
| 547 // loop (that may be blocked on I/O). The semantics of |callback| are the | |
| 548 // same as with StartConfigurationMode. If provided and a scheduler / sync | |
| 549 // loop exists, it will be invoked from the sync loop by the scheduler to | |
| 550 // notify that all work has been flushed + cancelled, and it is idle. | |
| 551 // If no scheduler exists, the callback is run immediately (from the loop | |
| 552 // this was created on, which is the sync loop), as sync is effectively | |
| 553 // stopped. | |
| 554 void StopSyncingForShutdown(const base::Closure& callback); | |
| 555 | |
| 556 // Issue a final SaveChanges, and close sqlite handles. | |
| 557 void ShutdownOnSyncThread(); | |
| 558 | |
| 559 // May be called from any thread. | |
| 560 UserShare* GetUserShare() const; | |
| 561 | |
| 562 // Inform the cryptographer of the most recent passphrase and set of | |
| 563 // encrypted types (from nigori node), then ensure all data that | |
| 564 // needs encryption is encrypted with the appropriate passphrase. | |
| 565 // | |
| 566 // May trigger OnPassphraseRequired(). Otherwise, it will trigger | |
| 567 // OnEncryptedTypesChanged() if necessary (see comments for | |
| 568 // OnEncryptedTypesChanged()), and then OnEncryptionComplete(). | |
| 569 // | |
| 570 // Also updates or adds device information to the nigori node. | |
| 571 // | |
| 572 // Note: opens a transaction, so must only be called after syncapi | |
| 573 // has been initialized. | |
| 574 void RefreshNigori(const std::string& chrome_version, | |
| 575 const base::Closure& done_callback); | |
| 576 | |
| 577 // Enable encryption of all sync data. Once enabled, it can never be | |
| 578 // disabled without clearing the server data. | |
| 579 // | |
| 580 // This will trigger OnEncryptedTypesChanged() if necessary (see | |
| 581 // comments for OnEncryptedTypesChanged()). It then may trigger | |
| 582 // OnPassphraseRequired(), but otherwise it will trigger | |
| 583 // OnEncryptionComplete(). | |
| 584 void EnableEncryptEverything(); | |
| 585 | |
| 586 // Returns true if we are currently encrypting all sync data. May | |
| 587 // be called on any thread. | |
| 588 bool EncryptEverythingEnabledForTest() const; | |
| 589 | |
| 590 // Gets the set of encrypted types from the cryptographer | |
| 591 // Note: opens a transaction. May be called from any thread. | |
| 592 syncable::ModelTypeSet GetEncryptedDataTypesForTest() const; | |
| 593 | |
| 594 // Reads the nigori node to determine if any experimental types should be | |
| 595 // enabled. | |
| 596 // Note: opens a transaction. May be called on any thread. | |
| 597 bool ReceivedExperimentalTypes(syncable::ModelTypeSet* to_add) const; | |
| 598 | |
| 599 // Uses a read-only transaction to determine if the directory being synced has | |
| 600 // any remaining unsynced items. May be called on any thread. | |
| 601 bool HasUnsyncedItems() const; | |
| 602 | |
| 603 // Functions used for testing. | |
| 604 | |
| 605 void TriggerOnNotificationStateChangeForTest( | |
| 606 bool notifications_enabled); | |
| 607 | |
| 608 void TriggerOnIncomingNotificationForTest( | |
| 609 syncable::ModelTypeSet model_types); | |
| 610 | |
| 611 static const int kDefaultNudgeDelayMilliseconds; | |
| 612 static const int kPreferencesNudgeDelayMilliseconds; | |
| 613 static const int kPiggybackNudgeDelay; | |
| 614 | |
| 615 static const FilePath::CharType kSyncDatabaseFilename[]; | |
| 616 | |
| 617 private: | |
| 618 FRIEND_TEST_ALL_PREFIXES(SyncManagerTest, NudgeDelayTest); | |
| 619 | |
| 620 // For unit tests. | |
| 621 base::TimeDelta GetNudgeDelayTimeDelta(const syncable::ModelType& model_type); | |
| 622 | |
| 623 base::ThreadChecker thread_checker_; | |
| 624 | |
| 625 // An opaque pointer to the nested private class. | |
| 626 SyncInternal* data_; | |
| 627 | |
| 628 DISALLOW_COPY_AND_ASSIGN(SyncManager); | |
| 629 }; | |
| 630 | |
| 631 bool InitialSyncEndedForTypes(syncable::ModelTypeSet types, UserShare* share); | |
| 632 | |
| 633 syncable::ModelTypeSet GetTypesWithEmptyProgressMarkerToken( | |
| 634 syncable::ModelTypeSet types, | |
| 635 sync_api::UserShare* share); | |
| 636 | |
| 637 const char* ConnectionStatusToString(ConnectionStatus status); | |
| 638 | |
| 639 // Returns the string representation of a PassphraseRequiredReason value. | |
| 640 const char* PassphraseRequiredReasonToString(PassphraseRequiredReason reason); | |
| 641 | |
| 642 } // namespace sync_api | |
| 643 | |
| 644 #endif // CHROME_BROWSER_SYNC_INTERNAL_API_SYNC_MANAGER_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 10147003:
[Sync] Move 'syncapi_core' and 'sync_unit_tests' targets to sync/ (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src