components/invalidation/impl/ticl_invalidation_service.h

   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 #ifndef COMPONENTS_INVALIDATION_IMPL_TICL_INVALIDATION_SERVICE_H_
   6 #define COMPONENTS_INVALIDATION_IMPL_TICL_INVALIDATION_SERVICE_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/macros.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/threading/non_thread_safe.h"
  15 #include "base/timer/timer.h"
  16 #include "base/values.h"
  17 #include "components/invalidation/impl/invalidation_logger.h"
  18 #include "components/invalidation/impl/invalidator_registrar.h"
  19 #include "components/invalidation/impl/ticl_settings_provider.h"
  20 #include "components/invalidation/public/invalidation_handler.h"
  21 #include "components/invalidation/public/invalidation_service.h"
  22 #include "components/keyed_service/core/keyed_service.h"
  23 #include "google_apis/gaia/identity_provider.h"
  24 #include "google_apis/gaia/oauth2_token_service.h"
  25 #include "net/base/backoff_entry.h"
  26
  27 namespace gcm {
  28 class GCMDriver;
  29 }
  30
  31 namespace net {
  32 class URLRequestContextGetter;
  33 }
  34
  35 namespace syncer {
  36 class InvalidationStateTracker;
  37 class Invalidator;
  38 }
  39
  40 namespace invalidation {
  41 class GCMInvalidationBridge;
  42
  43 // This InvalidationService wraps the C++ Invalidation Client (TICL) library.
  44 // It provides invalidations for desktop platforms (Win, Mac, Linux).
  45 class TiclInvalidationService : public base::NonThreadSafe,
  46                                 public InvalidationService,
  47                                 public OAuth2TokenService::Consumer,
  48                                 public OAuth2TokenService::Observer,
  49                                 public IdentityProvider::Observer,
  50                                 public TiclSettingsProvider::Observer,
  51                                 public syncer::InvalidationHandler {
  52  public:
  53   enum InvalidationNetworkChannel {
  54     PUSH_CLIENT_CHANNEL = 0,
  55     GCM_NETWORK_CHANNEL = 1,
  56
  57     // This enum is used in UMA_HISTOGRAM_ENUMERATION. Insert new values above
  58     // this line.
  59     NETWORK_CHANNELS_COUNT = 2
  60   };
  61
  62   TiclInvalidationService(
  63       const std::string& user_agent,
  64       scoped_ptr<IdentityProvider> identity_provider,
  65       scoped_ptr<TiclSettingsProvider> settings_provider,
  66       gcm::GCMDriver* gcm_driver,
  67       const scoped_refptr<net::URLRequestContextGetter>& request_context);
  68   ~TiclInvalidationService() override;
  69
  70   void Init(
  71       scoped_ptr<syncer::InvalidationStateTracker> invalidation_state_tracker);
  72
  73   // InvalidationService implementation.
  74   // It is an error to have registered handlers when the service is destroyed.
  75   void RegisterInvalidationHandler(
  76       syncer::InvalidationHandler* handler) override;
  77   bool UpdateRegisteredInvalidationIds(syncer::InvalidationHandler* handler,
  78                                        const syncer::ObjectIdSet& ids) override;
  79   void UnregisterInvalidationHandler(
  80       syncer::InvalidationHandler* handler) override;
  81   syncer::InvalidatorState GetInvalidatorState() const override;
  82   std::string GetInvalidatorClientId() const override;
  83   InvalidationLogger* GetInvalidationLogger() override;
  84   void RequestDetailedStatus(
  85       base::Callback<void(const base::DictionaryValue&)> caller) const override;
  86   IdentityProvider* GetIdentityProvider() override;
  87
  88   void RequestAccessToken();
  89
  90   // OAuth2TokenService::Consumer implementation
  91   void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
  92                          const std::string& access_token,
  93                          const base::Time& expiration_time) override;
  94   void OnGetTokenFailure(const OAuth2TokenService::Request* request,
  95                          const GoogleServiceAuthError& error) override;
  96
  97   // OAuth2TokenService::Observer implementation
  98   void OnRefreshTokenAvailable(const std::string& account_id) override;
  99   void OnRefreshTokenRevoked(const std::string& account_id) override;
 100
 101   // IdentityProvider::Observer implementation.
 102   void OnActiveAccountLogout() override;
 103
 104   // TiclSettingsProvider::Observer implementation.
 105   void OnUseGCMChannelChanged() override;
 106
 107   // syncer::InvalidationHandler implementation.
 108   void OnInvalidatorStateChange(syncer::InvalidatorState state) override;
 109   void OnIncomingInvalidation(
 110       const syncer::ObjectIdInvalidationMap& invalidation_map) override;
 111   std::string GetOwnerName() const override;
 112
 113  protected:
 114   // Initializes with an injected invalidator.
 115   void InitForTest(
 116       scoped_ptr<syncer::InvalidationStateTracker> invalidation_state_tracker,
 117       syncer::Invalidator* invalidator);
 118
 119  private:
 120   friend class TiclInvalidationServiceTestDelegate;
 121   friend class TiclProfileSettingsProviderTest;
 122
 123   bool IsReadyToStart();
 124   bool IsStarted() const;
 125
 126   void StartInvalidator(InvalidationNetworkChannel network_channel);
 127   void UpdateInvalidationNetworkChannel();
 128   void UpdateInvalidatorCredentials();
 129   void StopInvalidator();
 130
 131   const std::string user_agent_;
 132
 133   scoped_ptr<IdentityProvider> identity_provider_;
 134   scoped_ptr<TiclSettingsProvider> settings_provider_;
 135
 136   scoped_ptr<syncer::InvalidatorRegistrar> invalidator_registrar_;
 137   scoped_ptr<syncer::InvalidationStateTracker> invalidation_state_tracker_;
 138   scoped_ptr<syncer::Invalidator> invalidator_;
 139
 140   // TiclInvalidationService needs to remember access token in order to
 141   // invalidate it with OAuth2TokenService.
 142   std::string access_token_;
 143
 144   // TiclInvalidationService needs to hold reference to access_token_request_
 145   // for the duration of request in order to receive callbacks.
 146   scoped_ptr<OAuth2TokenService::Request> access_token_request_;
 147   base::OneShotTimer<TiclInvalidationService> request_access_token_retry_timer_;
 148   net::BackoffEntry request_access_token_backoff_;
 149
 150   InvalidationNetworkChannel network_channel_type_;
 151   gcm::GCMDriver* gcm_driver_;
 152   scoped_ptr<GCMInvalidationBridge> gcm_invalidation_bridge_;
 153   scoped_refptr<net::URLRequestContextGetter> request_context_;
 154
 155   // The invalidation logger object we use to record state changes
 156   // and invalidations.
 157   InvalidationLogger logger_;
 158
 159   // Keep a copy of the important parameters used in network channel creation
 160   // for debugging.
 161   base::DictionaryValue network_channel_options_;
 162
 163   DISALLOW_COPY_AND_ASSIGN(TiclInvalidationService);
 164 };
 165
 166 }  // namespace invalidation
 167
 168 #endif  // COMPONENTS_INVALIDATION_IMPL_TICL_INVALIDATION_SERVICE_H_