1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
// Copyright 2015 The Chromium Authors
// 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::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();
void ApplyNetworkSettings(const NetworkSettings& settings);
// 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, raw_ptr<IceTransportChannel, CtnExperimental>>
ChannelsMap;
using PendingChannelCreatedCallbacks =
std::map<std::string, ChannelCreatedCallback>;
// 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 webrtc::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_;
// Pending channel creations to be executed after network settings are
// applied.
PendingChannelCreatedCallbacks pending_channel_created_callbacks_;
std::unique_ptr<NetworkSettings> network_settings_;
base::WeakPtrFactory<IceTransport> weak_factory_{this};
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_ICE_TRANSPORT_H_
|
