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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 #include "sync/notifier/invalidator_factory.h" | |
| 6 | |
| 7 #include <string> | |
| 8 | |
| 9 #include "base/base64.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "base/rand_util.h" | |
| 12 #include "jingle/notifier/listener/push_client.h" | |
| 13 #include "sync/notifier/invalidator.h" | |
| 14 #include "sync/notifier/non_blocking_invalidator.h" | |
| 15 #include "sync/notifier/p2p_invalidator.h" | |
| 16 | |
| 17 namespace syncer { | |
| 18 namespace { | |
| 19 | |
| 20 Invalidator* CreateDefaultInvalidator( | |
| 21 const notifier::NotifierOptions& notifier_options, | |
| 22 const std::string& invalidator_client_id, | |
| 23 const InvalidationStateMap& initial_invalidation_state_map, | |
| 24 const std::string& invalidation_bootstrap_data, | |
| 25 const WeakHandle<InvalidationStateTracker>& invalidation_state_tracker, | |
| 26 const std::string& client_info) { | |
| 27 if (notifier_options.notification_method == notifier::NOTIFICATION_P2P) { | |
| 28 // TODO(rlarocque): Ideally, the notification target would be | |
| 29 // NOTIFY_OTHERS. There's no good reason to notify ourselves of our own | |
| 30 // commits. We self-notify for now only because the integration tests rely | |
| 31 // on this behaviour. See crbug.com/97780. | |
| 32 return new P2PInvalidator( | |
| 33 notifier::PushClient::CreateDefault(notifier_options), | |
| 34 invalidator_client_id, | |
| 35 NOTIFY_ALL); | |
| 36 } | |
| 37 | |
| 38 return new NonBlockingInvalidator( | |
| 39 notifier_options, invalidator_client_id, initial_invalidation_state_map, | |
| 40 invalidation_bootstrap_data, invalidation_state_tracker, client_info); | |
| 41 } | |
| 42 | |
| 43 std::string GenerateInvalidatorClientId() { | |
| 44 // Generate a GUID with 128 bits worth of base64-encoded randomness. | |
| 45 // This format is similar to that of sync's cache_guid. | |
| 46 const int kGuidBytes = 128 / 8; | |
| 47 std::string guid; | |
| 48 base::Base64Encode(base::RandBytesAsString(kGuidBytes), &guid); | |
| 49 return guid; | |
| 50 } | |
| 51 | |
| 52 } // namespace | |
| 53 | |
| 54 // TODO(akalin): Remove the dependency on jingle if OS_ANDROID is defined. | |
| 55 InvalidatorFactory::InvalidatorFactory( | |
| 56 const notifier::NotifierOptions& notifier_options, | |
| 57 const std::string& client_info, | |
| 58 const base::WeakPtr<InvalidationStateTracker>& | |
| 59 invalidation_state_tracker) | |
| 60 : notifier_options_(notifier_options), | |
| 61 client_info_(client_info) { | |
| 62 if (!invalidation_state_tracker) { | |
| 63 return; | |
| 64 } | |
| 65 | |
| 66 // TODO(rlarocque): This is not the most obvious place for client ID | |
| 67 // generation code. We should try to find a better place for it when we | |
| 68 // refactor the invalidator into its own service. | |
| 69 if (invalidation_state_tracker->GetInvalidatorClientId().empty()) { | |
| 70 // This also clears any existing state. We can't reuse old invalidator | |
| 71 // state with the new ID anyway. | |
| 72 invalidation_state_tracker->SetInvalidatorClientId( | |
| 73 GenerateInvalidatorClientId()); | |
| 74 } | |
| 75 | |
| 76 initial_invalidation_state_map_ = | |
| 77 invalidation_state_tracker->GetAllInvalidationStates(); | |
| 78 invalidator_client_id_ = | |
| 79 invalidation_state_tracker->GetInvalidatorClientId(); | |
| 80 invalidation_bootstrap_data_ = invalidation_state_tracker->GetBootstrapData(); | |
| 81 invalidation_state_tracker_ = WeakHandle<InvalidationStateTracker>( | |
| 82 invalidation_state_tracker); | |
| 83 } | |
| 84 | |
| 85 InvalidatorFactory::~InvalidatorFactory() { | |
| 86 } | |
| 87 | |
| 88 Invalidator* InvalidatorFactory::CreateInvalidator() { | |
| 89 #if defined(OS_ANDROID) | |
| 90 // Android uses AndroidInvalidatorBridge instead. See SyncManager | |
| 91 // initialization code in SyncBackendHost for more information. | |
| 92 return NULL; | |
| 93 #else | |
| 94 return CreateDefaultInvalidator(notifier_options_, | |
| 95 invalidator_client_id_, | |
| 96 initial_invalidation_state_map_, | |
| 97 invalidation_bootstrap_data_, | |
| 98 invalidation_state_tracker_, | |
| 99 client_info_); | |
| 100 #endif | |
| 101 } | |
| 102 | |
| 103 std::string InvalidatorFactory::GetInvalidatorClientId() const { | |
| 104 return invalidator_client_id_; | |
| 105 } | |
| 106 | |
| 107 } // namespace syncer | |
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