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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_INVALIDATION_IMPL_FCM_NETWORK_HANDLER_H_
#define COMPONENTS_INVALIDATION_IMPL_FCM_NETWORK_HANDLER_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/clock.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "base/values.h"
#include "components/gcm_driver/gcm_app_handler.h"
#include "components/gcm_driver/instance_id/instance_id.h"
#include "components/invalidation/impl/channels_states.h"
#include "components/invalidation/impl/fcm_sync_network_channel.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
namespace gcm {
class GCMDriver;
}
namespace instance_id {
class InstanceIDDriver;
}
namespace invalidation {
/*
* The class responsible for communication via GCM channel:
* - It retrieves the token required for the subscription
* and passes it by invoking token callback.
* - It receives the messages and passes them to the
* invalidation infrustructure, so they can be converted to the
* invalidations and consumed by listeners.
*/
class FCMNetworkHandler : public gcm::GCMAppHandler,
public FCMSyncNetworkChannel {
public:
FCMNetworkHandler(gcm::GCMDriver* gcm_driver,
instance_id::InstanceIDDriver* instance_id_driver,
const std::string& sender_id,
const std::string& app_id);
FCMNetworkHandler(const FCMNetworkHandler& other) = delete;
FCMNetworkHandler& operator=(const FCMNetworkHandler& other) = delete;
~FCMNetworkHandler() override;
// Just calls std::make_unique. For ease of base::Bind'ing.
static std::unique_ptr<FCMNetworkHandler> Create(
gcm::GCMDriver* gcm_driver,
instance_id::InstanceIDDriver* instance_id_driver,
const std::string& sender_id,
const std::string& app_id);
bool IsListening() const;
void UpdateChannelState(FcmChannelState state);
// FCMSyncNetworkChannel overrides.
void StartListening() override;
void StopListening() override;
// GCMAppHandler overrides.
void ShutdownHandler() override;
void OnStoreReset() override;
void OnMessage(const std::string& app_id,
const gcm::IncomingMessage& message) override;
void OnMessagesDeleted(const std::string& app_id) override;
void OnSendError(const std::string& app_id,
const gcm::GCMClient::SendErrorDetails& details) override;
void OnSendAcknowledged(const std::string& app_id,
const std::string& message_id) override;
void SetTokenValidationTimerForTesting(
std::unique_ptr<base::OneShotTimer> token_validation_timer);
private:
// Called when a subscription token is obtained from the GCM server.
void DidRetrieveToken(const std::string& subscription_token,
instance_id::InstanceID::Result result);
void ScheduleNextTokenValidation();
void StartTokenValidation();
void DidReceiveTokenForValidation(const std::string& new_token,
instance_id::InstanceID::Result result);
const raw_ptr<gcm::GCMDriver> gcm_driver_;
const raw_ptr<instance_id::InstanceIDDriver> instance_id_driver_;
FcmChannelState channel_state_ = FcmChannelState::NOT_STARTED;
std::string token_;
std::unique_ptr<base::OneShotTimer> token_validation_timer_;
const std::string sender_id_;
const std::string app_id_;
base::WeakPtrFactory<FCMNetworkHandler> weak_ptr_factory_{this};
};
} // namespace invalidation
#endif // COMPONENTS_INVALIDATION_IMPL_FCM_NETWORK_HANDLER_H_
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