| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_FTL_SIGNALING_CONNECTOR_H_ |
| #define REMOTING_HOST_FTL_SIGNALING_CONNECTOR_H_ |
| |
| #include "base/macros.h" |
| #include "base/sequence_checker.h" |
| #include "base/timer/timer.h" |
| #include "net/base/network_change_notifier.h" |
| #include "remoting/signaling/ftl_signal_strategy.h" |
| |
| namespace remoting { |
| |
| // FtlSignalingConnector listens for SignalStrategy status notifications |
| // and attempts to keep it connected when possible. When signaling is |
| // not connected it keeps trying to reconnect it until it is |
| // connected. It also monitors network state and reconnects signaling whenever |
| // connection type changes or IP address changes. |
| // TODO(yuweih): Revisit to see if DNS blackhole checking is necessary here. |
| class FtlSignalingConnector |
| : public SignalStrategy::Listener, |
| public net::NetworkChangeNotifier::NetworkChangeObserver { |
| public: |
| // |signal_strategy| must outlive |this|. |
| // The |auth_failed_callback| is called when authentication fails. The |
| // singaling connector will no longer try to reconnect after this callback is |
| // called. |
| FtlSignalingConnector(FtlSignalStrategy* signal_strategy, |
| base::OnceClosure auth_failed_callback); |
| ~FtlSignalingConnector() override; |
| |
| void Start(); |
| |
| // SignalStrategy::Listener interface. |
| void OnSignalStrategyStateChange(SignalStrategy::State state) override; |
| bool OnSignalStrategyIncomingStanza( |
| const jingle_xmpp::XmlElement* stanza) override; |
| |
| // NetworkChangeNotifier::NetworkChangeObserver interface. |
| void OnNetworkChanged( |
| net::NetworkChangeNotifier::ConnectionType type) override; |
| |
| private: |
| void TryReconnect(); |
| void DoReconnect(); |
| |
| FtlSignalStrategy* signal_strategy_; |
| base::OnceClosure auth_failed_callback_; |
| |
| base::OneShotTimer timer_; |
| |
| SEQUENCE_CHECKER(sequence_checker_); |
| |
| DISALLOW_COPY_AND_ASSIGN(FtlSignalingConnector); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_FTL_SIGNALING_CONNECTOR_H_ |