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- // Copyright 2015 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_PROTOCOL_ICE_TRANSPORT_H_
- #define REMOTING_PROTOCOL_ICE_TRANSPORT_H_
- #include <list>
- #include <map>
- #include "base/memory/raw_ptr.h"
- #include "base/memory/weak_ptr.h"
- #include "base/timer/timer.h"
- #include "remoting/protocol/datagram_channel_factory.h"
- #include "remoting/protocol/ice_transport_channel.h"
- #include "remoting/protocol/jingle_messages.h"
- #include "remoting/protocol/transport.h"
- namespace remoting {
- namespace protocol {
- class ChannelMultiplexer;
- class PseudoTcpChannelFactory;
- class SecureChannelFactory;
- class MessageChannelFactory;
- class IceTransport : public Transport,
- public IceTransportChannel::Delegate,
- public DatagramChannelFactory {
- public:
- class EventHandler {
- public:
- // Called when transport route changes.
- virtual void OnIceTransportRouteChange(const std::string& channel_name,
- const TransportRoute& route) = 0;
- // Called when there is an error connecting the session.
- virtual void OnIceTransportError(ErrorCode error) = 0;
- };
- // |transport_context| must outlive the session.
- IceTransport(scoped_refptr<TransportContext> transport_context,
- EventHandler* event_handler);
- IceTransport(const IceTransport&) = delete;
- IceTransport& operator=(const IceTransport&) = delete;
- ~IceTransport() override;
- MessageChannelFactory* GetChannelFactory();
- MessageChannelFactory* GetMultiplexedChannelFactory();
- // Transport interface.
- void Start(Authenticator* authenticator,
- SendTransportInfoCallback send_transport_info_callback) override;
- bool ProcessTransportInfo(jingle_xmpp::XmlElement* transport_info) override;
- private:
- typedef std::map<std::string, IceTransportChannel*> ChannelsMap;
- // DatagramChannelFactory interface.
- void CreateChannel(const std::string& name,
- ChannelCreatedCallback callback) override;
- void CancelChannelCreation(const std::string& name) override;
- // Passes transport info to a new |channel| in case it was received before the
- // channel was created.
- void AddPendingRemoteTransportInfo(IceTransportChannel* channel);
- // IceTransportChannel::Delegate interface.
- void OnChannelIceCredentials(IceTransportChannel* transport,
- const std::string& ufrag,
- const std::string& password) override;
- void OnChannelCandidate(IceTransportChannel* transport,
- const cricket::Candidate& candidate) override;
- void OnChannelRouteChange(IceTransportChannel* transport,
- const TransportRoute& route) override;
- void OnChannelFailed(IceTransportChannel* transport) override;
- void OnChannelDeleted(IceTransportChannel* transport) override;
- // Creates empty |pending_transport_info_message_| and schedules timer for
- // SentTransportInfo() to sent the message later.
- void EnsurePendingTransportInfoMessage();
- // Sends transport-info message with candidates from |pending_candidates_|.
- void SendTransportInfo();
- // Callback passed to StreamMessageChannelFactoryAdapter to handle read/write
- // errors on the data channels.
- void OnChannelError(int error);
- scoped_refptr<TransportContext> transport_context_;
- raw_ptr<EventHandler> event_handler_;
- SendTransportInfoCallback send_transport_info_callback_;
- ChannelsMap channels_;
- std::unique_ptr<PseudoTcpChannelFactory> pseudotcp_channel_factory_;
- std::unique_ptr<SecureChannelFactory> secure_channel_factory_;
- std::unique_ptr<MessageChannelFactory> message_channel_factory_;
- std::unique_ptr<ChannelMultiplexer> channel_multiplexer_;
- std::unique_ptr<MessageChannelFactory> mux_channel_factory_;
- // Pending remote transport info received before the local channels were
- // created.
- std::list<IceTransportInfo::IceCredentials> pending_remote_ice_credentials_;
- std::list<IceTransportInfo::NamedCandidate> pending_remote_candidates_;
- std::unique_ptr<IceTransportInfo> pending_transport_info_message_;
- base::OneShotTimer transport_info_timer_;
- base::WeakPtrFactory<IceTransport> weak_factory_{this};
- };
- } // namespace protocol
- } // namespace remoting
- #endif // REMOTING_PROTOCOL_ICE_TRANSPORT_H_
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