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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "components/invalidation/sync_invalidation_listener.h" | |
6 | |
7 #include <vector> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/callback.h" | |
11 #include "base/compiler_specific.h" | |
12 #include "base/location.h" | |
13 #include "base/logging.h" | |
14 #include "base/single_thread_task_runner.h" | |
15 #include "base/thread_task_runner_handle.h" | |
16 #include "base/tracked_objects.h" | |
17 #include "components/invalidation/invalidation_util.h" | |
18 #include "components/invalidation/object_id_invalidation_map.h" | |
19 #include "components/invalidation/registration_manager.h" | |
20 #include "google/cacheinvalidation/include/invalidation-client.h" | |
21 #include "google/cacheinvalidation/include/types.h" | |
22 #include "jingle/notifier/listener/push_client.h" | |
23 | |
24 namespace { | |
25 | |
26 const char kApplicationName[] = "chrome-sync"; | |
27 | |
28 } // namespace | |
29 | |
30 namespace syncer { | |
31 | |
32 SyncInvalidationListener::Delegate::~Delegate() {} | |
33 | |
34 SyncInvalidationListener::SyncInvalidationListener( | |
35 scoped_ptr<SyncNetworkChannel> network_channel) | |
36 : sync_network_channel_(network_channel.Pass()), | |
37 sync_system_resources_(sync_network_channel_.get(), this), | |
38 delegate_(NULL), | |
39 ticl_state_(DEFAULT_INVALIDATION_ERROR), | |
40 push_client_state_(DEFAULT_INVALIDATION_ERROR), | |
41 weak_ptr_factory_(this) { | |
42 DCHECK(CalledOnValidThread()); | |
43 sync_network_channel_->AddObserver(this); | |
44 } | |
45 | |
46 SyncInvalidationListener::~SyncInvalidationListener() { | |
47 DCHECK(CalledOnValidThread()); | |
48 sync_network_channel_->RemoveObserver(this); | |
49 Stop(); | |
50 DCHECK(!delegate_); | |
51 } | |
52 | |
53 void SyncInvalidationListener::Start( | |
54 const CreateInvalidationClientCallback& create_invalidation_client_callback, | |
55 const std::string& client_id, | |
56 const std::string& client_info, | |
57 const std::string& invalidation_bootstrap_data, | |
58 const UnackedInvalidationsMap& initial_unacked_invalidations, | |
59 const base::WeakPtr<InvalidationStateTracker>& invalidation_state_tracker, | |
60 const scoped_refptr<base::SequencedTaskRunner>& | |
61 invalidation_state_tracker_task_runner, | |
62 Delegate* delegate) { | |
63 DCHECK(CalledOnValidThread()); | |
64 Stop(); | |
65 | |
66 sync_system_resources_.set_platform(client_info); | |
67 sync_system_resources_.Start(); | |
68 | |
69 // The Storage resource is implemented as a write-through cache. We populate | |
70 // it with the initial state on startup, so subsequent writes go to disk and | |
71 // update the in-memory cache, while reads just return the cached state. | |
72 sync_system_resources_.storage()->SetInitialState( | |
73 invalidation_bootstrap_data); | |
74 | |
75 unacked_invalidations_map_ = initial_unacked_invalidations; | |
76 invalidation_state_tracker_ = invalidation_state_tracker; | |
77 invalidation_state_tracker_task_runner_ = | |
78 invalidation_state_tracker_task_runner; | |
79 DCHECK(invalidation_state_tracker_task_runner_.get()); | |
80 | |
81 DCHECK(!delegate_); | |
82 DCHECK(delegate); | |
83 delegate_ = delegate; | |
84 | |
85 invalidation_client_.reset(create_invalidation_client_callback.Run( | |
86 &sync_system_resources_, | |
87 sync_network_channel_->GetInvalidationClientType(), | |
88 client_id, | |
89 kApplicationName, | |
90 this)); | |
91 invalidation_client_->Start(); | |
92 | |
93 registration_manager_.reset( | |
94 new RegistrationManager(invalidation_client_.get())); | |
95 } | |
96 | |
97 void SyncInvalidationListener::UpdateCredentials( | |
98 const std::string& email, const std::string& token) { | |
99 DCHECK(CalledOnValidThread()); | |
100 sync_network_channel_->UpdateCredentials(email, token); | |
101 } | |
102 | |
103 void SyncInvalidationListener::UpdateRegisteredIds(const ObjectIdSet& ids) { | |
104 DCHECK(CalledOnValidThread()); | |
105 registered_ids_ = ids; | |
106 // |ticl_state_| can go to INVALIDATIONS_ENABLED even without a | |
107 // working XMPP connection (as observed by us), so check it instead | |
108 // of GetState() (see http://crbug.com/139424). | |
109 if (ticl_state_ == INVALIDATIONS_ENABLED && registration_manager_) { | |
110 DoRegistrationUpdate(); | |
111 } | |
112 } | |
113 | |
114 void SyncInvalidationListener::Ready( | |
115 invalidation::InvalidationClient* client) { | |
116 DCHECK(CalledOnValidThread()); | |
117 DCHECK_EQ(client, invalidation_client_.get()); | |
118 ticl_state_ = INVALIDATIONS_ENABLED; | |
119 EmitStateChange(); | |
120 DoRegistrationUpdate(); | |
121 } | |
122 | |
123 void SyncInvalidationListener::Invalidate( | |
124 invalidation::InvalidationClient* client, | |
125 const invalidation::Invalidation& invalidation, | |
126 const invalidation::AckHandle& ack_handle) { | |
127 DCHECK(CalledOnValidThread()); | |
128 DCHECK_EQ(client, invalidation_client_.get()); | |
129 client->Acknowledge(ack_handle); | |
130 | |
131 const invalidation::ObjectId& id = invalidation.object_id(); | |
132 | |
133 std::string payload; | |
134 // payload() CHECK()'s has_payload(), so we must check it ourselves first. | |
135 if (invalidation.has_payload()) | |
136 payload = invalidation.payload(); | |
137 | |
138 DVLOG(2) << "Received invalidation with version " << invalidation.version() | |
139 << " for " << ObjectIdToString(id); | |
140 | |
141 ObjectIdInvalidationMap invalidations; | |
142 Invalidation inv = Invalidation::Init(id, invalidation.version(), payload); | |
143 inv.SetAckHandler(AsWeakPtr(), base::ThreadTaskRunnerHandle::Get()); | |
144 invalidations.Insert(inv); | |
145 | |
146 DispatchInvalidations(invalidations); | |
147 } | |
148 | |
149 void SyncInvalidationListener::InvalidateUnknownVersion( | |
150 invalidation::InvalidationClient* client, | |
151 const invalidation::ObjectId& object_id, | |
152 const invalidation::AckHandle& ack_handle) { | |
153 DCHECK(CalledOnValidThread()); | |
154 DCHECK_EQ(client, invalidation_client_.get()); | |
155 DVLOG(1) << "InvalidateUnknownVersion"; | |
156 client->Acknowledge(ack_handle); | |
157 | |
158 ObjectIdInvalidationMap invalidations; | |
159 Invalidation unknown_version = Invalidation::InitUnknownVersion(object_id); | |
160 unknown_version.SetAckHandler(AsWeakPtr(), | |
161 base::ThreadTaskRunnerHandle::Get()); | |
162 invalidations.Insert(unknown_version); | |
163 | |
164 DispatchInvalidations(invalidations); | |
165 } | |
166 | |
167 // This should behave as if we got an invalidation with version | |
168 // UNKNOWN_OBJECT_VERSION for all known data types. | |
169 void SyncInvalidationListener::InvalidateAll( | |
170 invalidation::InvalidationClient* client, | |
171 const invalidation::AckHandle& ack_handle) { | |
172 DCHECK(CalledOnValidThread()); | |
173 DCHECK_EQ(client, invalidation_client_.get()); | |
174 DVLOG(1) << "InvalidateAll"; | |
175 client->Acknowledge(ack_handle); | |
176 | |
177 ObjectIdInvalidationMap invalidations; | |
178 for (ObjectIdSet::iterator it = registered_ids_.begin(); | |
179 it != registered_ids_.end(); ++it) { | |
180 Invalidation unknown_version = Invalidation::InitUnknownVersion(*it); | |
181 unknown_version.SetAckHandler(AsWeakPtr(), | |
182 base::ThreadTaskRunnerHandle::Get()); | |
183 invalidations.Insert(unknown_version); | |
184 } | |
185 | |
186 DispatchInvalidations(invalidations); | |
187 } | |
188 | |
189 // If a handler is registered, emit right away. Otherwise, save it for later. | |
190 void SyncInvalidationListener::DispatchInvalidations( | |
191 const ObjectIdInvalidationMap& invalidations) { | |
192 DCHECK(CalledOnValidThread()); | |
193 | |
194 ObjectIdInvalidationMap to_save = invalidations; | |
195 ObjectIdInvalidationMap to_emit = | |
196 invalidations.GetSubsetWithObjectIds(registered_ids_); | |
197 | |
198 SaveInvalidations(to_save); | |
199 EmitSavedInvalidations(to_emit); | |
200 } | |
201 | |
202 void SyncInvalidationListener::SaveInvalidations( | |
203 const ObjectIdInvalidationMap& to_save) { | |
204 ObjectIdSet objects_to_save = to_save.GetObjectIds(); | |
205 for (ObjectIdSet::const_iterator it = objects_to_save.begin(); | |
206 it != objects_to_save.end(); ++it) { | |
207 UnackedInvalidationsMap::iterator lookup = | |
208 unacked_invalidations_map_.find(*it); | |
209 if (lookup == unacked_invalidations_map_.end()) { | |
210 lookup = unacked_invalidations_map_.insert( | |
211 std::make_pair(*it, UnackedInvalidationSet(*it))).first; | |
212 } | |
213 lookup->second.AddSet(to_save.ForObject(*it)); | |
214 } | |
215 | |
216 invalidation_state_tracker_task_runner_->PostTask( | |
217 FROM_HERE, | |
218 base::Bind(&InvalidationStateTracker::SetSavedInvalidations, | |
219 invalidation_state_tracker_, | |
220 unacked_invalidations_map_)); | |
221 } | |
222 | |
223 void SyncInvalidationListener::EmitSavedInvalidations( | |
224 const ObjectIdInvalidationMap& to_emit) { | |
225 DVLOG(2) << "Emitting invalidations: " << to_emit.ToString(); | |
226 delegate_->OnInvalidate(to_emit); | |
227 } | |
228 | |
229 void SyncInvalidationListener::InformRegistrationStatus( | |
230 invalidation::InvalidationClient* client, | |
231 const invalidation::ObjectId& object_id, | |
232 InvalidationListener::RegistrationState new_state) { | |
233 DCHECK(CalledOnValidThread()); | |
234 DCHECK_EQ(client, invalidation_client_.get()); | |
235 DVLOG(1) << "InformRegistrationStatus: " | |
236 << ObjectIdToString(object_id) << " " << new_state; | |
237 | |
238 if (new_state != InvalidationListener::REGISTERED) { | |
239 // Let |registration_manager_| handle the registration backoff policy. | |
240 registration_manager_->MarkRegistrationLost(object_id); | |
241 } | |
242 } | |
243 | |
244 void SyncInvalidationListener::InformRegistrationFailure( | |
245 invalidation::InvalidationClient* client, | |
246 const invalidation::ObjectId& object_id, | |
247 bool is_transient, | |
248 const std::string& error_message) { | |
249 DCHECK(CalledOnValidThread()); | |
250 DCHECK_EQ(client, invalidation_client_.get()); | |
251 DVLOG(1) << "InformRegistrationFailure: " | |
252 << ObjectIdToString(object_id) | |
253 << "is_transient=" << is_transient | |
254 << ", message=" << error_message; | |
255 | |
256 if (is_transient) { | |
257 // We don't care about |unknown_hint|; we let | |
258 // |registration_manager_| handle the registration backoff policy. | |
259 registration_manager_->MarkRegistrationLost(object_id); | |
260 } else { | |
261 // Non-transient failures require an action to resolve. This could happen | |
262 // because: | |
263 // - the server doesn't yet recognize the data type, which could happen for | |
264 // brand-new data types. | |
265 // - the user has changed his password and hasn't updated it yet locally. | |
266 // Either way, block future registration attempts for |object_id|. However, | |
267 // we don't forget any saved invalidation state since we may use it once the | |
268 // error is addressed. | |
269 registration_manager_->DisableId(object_id); | |
270 } | |
271 } | |
272 | |
273 void SyncInvalidationListener::ReissueRegistrations( | |
274 invalidation::InvalidationClient* client, | |
275 const std::string& prefix, | |
276 int prefix_length) { | |
277 DCHECK(CalledOnValidThread()); | |
278 DCHECK_EQ(client, invalidation_client_.get()); | |
279 DVLOG(1) << "AllRegistrationsLost"; | |
280 registration_manager_->MarkAllRegistrationsLost(); | |
281 } | |
282 | |
283 void SyncInvalidationListener::InformError( | |
284 invalidation::InvalidationClient* client, | |
285 const invalidation::ErrorInfo& error_info) { | |
286 DCHECK(CalledOnValidThread()); | |
287 DCHECK_EQ(client, invalidation_client_.get()); | |
288 LOG(ERROR) << "Ticl error " << error_info.error_reason() << ": " | |
289 << error_info.error_message() | |
290 << " (transient = " << error_info.is_transient() << ")"; | |
291 if (error_info.error_reason() == invalidation::ErrorReason::AUTH_FAILURE) { | |
292 ticl_state_ = INVALIDATION_CREDENTIALS_REJECTED; | |
293 } else { | |
294 ticl_state_ = TRANSIENT_INVALIDATION_ERROR; | |
295 } | |
296 EmitStateChange(); | |
297 } | |
298 | |
299 void SyncInvalidationListener::Acknowledge( | |
300 const invalidation::ObjectId& id, | |
301 const syncer::AckHandle& handle) { | |
302 UnackedInvalidationsMap::iterator lookup = | |
303 unacked_invalidations_map_.find(id); | |
304 if (lookup == unacked_invalidations_map_.end()) { | |
305 DLOG(WARNING) << "Received acknowledgement for untracked object ID"; | |
306 return; | |
307 } | |
308 lookup->second.Acknowledge(handle); | |
309 invalidation_state_tracker_task_runner_->PostTask( | |
310 FROM_HERE, | |
311 base::Bind(&InvalidationStateTracker::SetSavedInvalidations, | |
312 invalidation_state_tracker_, | |
313 unacked_invalidations_map_)); | |
314 } | |
315 | |
316 void SyncInvalidationListener::Drop( | |
317 const invalidation::ObjectId& id, | |
318 const syncer::AckHandle& handle) { | |
319 UnackedInvalidationsMap::iterator lookup = | |
320 unacked_invalidations_map_.find(id); | |
321 if (lookup == unacked_invalidations_map_.end()) { | |
322 DLOG(WARNING) << "Received drop for untracked object ID"; | |
323 return; | |
324 } | |
325 lookup->second.Drop(handle); | |
326 invalidation_state_tracker_task_runner_->PostTask( | |
327 FROM_HERE, | |
328 base::Bind(&InvalidationStateTracker::SetSavedInvalidations, | |
329 invalidation_state_tracker_, | |
330 unacked_invalidations_map_)); | |
331 } | |
332 | |
333 void SyncInvalidationListener::WriteState(const std::string& state) { | |
334 DCHECK(CalledOnValidThread()); | |
335 DVLOG(1) << "WriteState"; | |
336 invalidation_state_tracker_task_runner_->PostTask( | |
337 FROM_HERE, | |
338 base::Bind(&InvalidationStateTracker::SetBootstrapData, | |
339 invalidation_state_tracker_, | |
340 state)); | |
341 } | |
342 | |
343 void SyncInvalidationListener::DoRegistrationUpdate() { | |
344 DCHECK(CalledOnValidThread()); | |
345 const ObjectIdSet& unregistered_ids = | |
346 registration_manager_->UpdateRegisteredIds(registered_ids_); | |
347 for (ObjectIdSet::iterator it = unregistered_ids.begin(); | |
348 it != unregistered_ids.end(); ++it) { | |
349 unacked_invalidations_map_.erase(*it); | |
350 } | |
351 invalidation_state_tracker_task_runner_->PostTask( | |
352 FROM_HERE, | |
353 base::Bind(&InvalidationStateTracker::SetSavedInvalidations, | |
354 invalidation_state_tracker_, | |
355 unacked_invalidations_map_)); | |
356 | |
357 ObjectIdInvalidationMap object_id_invalidation_map; | |
358 for (UnackedInvalidationsMap::iterator map_it = | |
359 unacked_invalidations_map_.begin(); | |
360 map_it != unacked_invalidations_map_.end(); ++map_it) { | |
361 if (registered_ids_.find(map_it->first) == registered_ids_.end()) { | |
362 continue; | |
363 } | |
364 map_it->second.ExportInvalidations(AsWeakPtr(), | |
365 base::ThreadTaskRunnerHandle::Get(), | |
366 &object_id_invalidation_map); | |
367 } | |
368 | |
369 // There's no need to run these through DispatchInvalidations(); they've | |
370 // already been saved to storage (that's where we found them) so all we need | |
371 // to do now is emit them. | |
372 EmitSavedInvalidations(object_id_invalidation_map); | |
373 } | |
374 | |
375 void SyncInvalidationListener::RequestDetailedStatus( | |
376 base::Callback<void(const base::DictionaryValue&)> callback) const { | |
377 DCHECK(CalledOnValidThread()); | |
378 sync_network_channel_->RequestDetailedStatus(callback); | |
379 callback.Run(*CollectDebugData()); | |
380 } | |
381 | |
382 scoped_ptr<base::DictionaryValue> | |
383 SyncInvalidationListener::CollectDebugData() const { | |
384 scoped_ptr<base::DictionaryValue> return_value(new base::DictionaryValue()); | |
385 return_value->SetString( | |
386 "SyncInvalidationListener.PushClientState", | |
387 std::string(InvalidatorStateToString(push_client_state_))); | |
388 return_value->SetString("SyncInvalidationListener.TiclState", | |
389 std::string(InvalidatorStateToString(ticl_state_))); | |
390 scoped_ptr<base::DictionaryValue> unacked_map(new base::DictionaryValue()); | |
391 for (UnackedInvalidationsMap::const_iterator it = | |
392 unacked_invalidations_map_.begin(); | |
393 it != unacked_invalidations_map_.end(); | |
394 ++it) { | |
395 unacked_map->Set((it->first).name(), (it->second).ToValue().release()); | |
396 } | |
397 return_value->Set("SyncInvalidationListener.UnackedInvalidationsMap", | |
398 unacked_map.release()); | |
399 return return_value.Pass(); | |
400 } | |
401 | |
402 void SyncInvalidationListener::StopForTest() { | |
403 DCHECK(CalledOnValidThread()); | |
404 Stop(); | |
405 } | |
406 | |
407 void SyncInvalidationListener::Stop() { | |
408 DCHECK(CalledOnValidThread()); | |
409 if (!invalidation_client_) { | |
410 return; | |
411 } | |
412 | |
413 registration_manager_.reset(); | |
414 sync_system_resources_.Stop(); | |
415 invalidation_client_->Stop(); | |
416 | |
417 invalidation_client_.reset(); | |
418 delegate_ = NULL; | |
419 | |
420 ticl_state_ = DEFAULT_INVALIDATION_ERROR; | |
421 push_client_state_ = DEFAULT_INVALIDATION_ERROR; | |
422 } | |
423 | |
424 InvalidatorState SyncInvalidationListener::GetState() const { | |
425 DCHECK(CalledOnValidThread()); | |
426 if (ticl_state_ == INVALIDATION_CREDENTIALS_REJECTED || | |
427 push_client_state_ == INVALIDATION_CREDENTIALS_REJECTED) { | |
428 // If either the ticl or the push client rejected our credentials, | |
429 // return INVALIDATION_CREDENTIALS_REJECTED. | |
430 return INVALIDATION_CREDENTIALS_REJECTED; | |
431 } | |
432 if (ticl_state_ == INVALIDATIONS_ENABLED && | |
433 push_client_state_ == INVALIDATIONS_ENABLED) { | |
434 // If the ticl is ready and the push client notifications are | |
435 // enabled, return INVALIDATIONS_ENABLED. | |
436 return INVALIDATIONS_ENABLED; | |
437 } | |
438 // Otherwise, we have a transient error. | |
439 return TRANSIENT_INVALIDATION_ERROR; | |
440 } | |
441 | |
442 void SyncInvalidationListener::EmitStateChange() { | |
443 DCHECK(CalledOnValidThread()); | |
444 delegate_->OnInvalidatorStateChange(GetState()); | |
445 } | |
446 | |
447 base::WeakPtr<AckHandler> SyncInvalidationListener::AsWeakPtr() { | |
448 DCHECK(CalledOnValidThread()); | |
449 base::WeakPtr<AckHandler> weak_ptr = weak_ptr_factory_.GetWeakPtr(); | |
450 weak_ptr.get(); // Binds the pointer to this thread. | |
451 return weak_ptr; | |
452 } | |
453 | |
454 void SyncInvalidationListener::OnNetworkChannelStateChanged( | |
455 InvalidatorState invalidator_state) { | |
456 DCHECK(CalledOnValidThread()); | |
457 push_client_state_ = invalidator_state; | |
458 EmitStateChange(); | |
459 } | |
460 | |
461 } // namespace syncer | |
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