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1 /* | 1 /* |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_BASE_PROXYSERVER_H_ | 11 #ifndef WEBRTC_BASE_PROXYSERVER_H_ |
12 #define WEBRTC_BASE_PROXYSERVER_H_ | 12 #define WEBRTC_BASE_PROXYSERVER_H_ |
13 | 13 |
14 #include <list> | |
15 #include <memory> | |
16 #include "webrtc/base/asyncsocket.h" | |
17 #include "webrtc/base/constructormagic.h" | |
18 #include "webrtc/base/socketadapters.h" | |
19 #include "webrtc/base/socketaddress.h" | |
20 #include "webrtc/base/stream.h" | |
21 | 14 |
22 namespace rtc { | 15 // This header is deprecated and is just left here temporarily during |
23 | 16 // refactoring. See https://bugs.webrtc.org/7634 for more details. |
24 class SocketFactory; | 17 #include "webrtc/rtc_base/proxyserver.h" |
25 | |
26 // ProxyServer is a base class that allows for easy construction of proxy | |
27 // servers. With its helper class ProxyBinding, it contains all the necessary | |
28 // logic for receiving and bridging connections. The specific client-server | |
29 // proxy protocol is implemented by an instance of the AsyncProxyServerSocket | |
30 // class; children of ProxyServer implement WrapSocket appropriately to return | |
31 // the correct protocol handler. | |
32 | |
33 class ProxyBinding : public sigslot::has_slots<> { | |
34 public: | |
35 ProxyBinding(AsyncProxyServerSocket* in_socket, AsyncSocket* out_socket); | |
36 ~ProxyBinding() override; | |
37 sigslot::signal1<ProxyBinding*> SignalDestroyed; | |
38 | |
39 private: | |
40 void OnConnectRequest(AsyncProxyServerSocket* socket, | |
41 const SocketAddress& addr); | |
42 void OnInternalRead(AsyncSocket* socket); | |
43 void OnInternalWrite(AsyncSocket* socket); | |
44 void OnInternalClose(AsyncSocket* socket, int err); | |
45 void OnExternalConnect(AsyncSocket* socket); | |
46 void OnExternalRead(AsyncSocket* socket); | |
47 void OnExternalWrite(AsyncSocket* socket); | |
48 void OnExternalClose(AsyncSocket* socket, int err); | |
49 | |
50 static void Read(AsyncSocket* socket, FifoBuffer* buffer); | |
51 static void Write(AsyncSocket* socket, FifoBuffer* buffer); | |
52 void Destroy(); | |
53 | |
54 static const int kBufferSize = 4096; | |
55 std::unique_ptr<AsyncProxyServerSocket> int_socket_; | |
56 std::unique_ptr<AsyncSocket> ext_socket_; | |
57 bool connected_; | |
58 FifoBuffer out_buffer_; | |
59 FifoBuffer in_buffer_; | |
60 RTC_DISALLOW_COPY_AND_ASSIGN(ProxyBinding); | |
61 }; | |
62 | |
63 class ProxyServer : public sigslot::has_slots<> { | |
64 public: | |
65 ProxyServer(SocketFactory* int_factory, const SocketAddress& int_addr, | |
66 SocketFactory* ext_factory, const SocketAddress& ext_ip); | |
67 ~ProxyServer() override; | |
68 | |
69 // Returns the address to which the proxy server is bound | |
70 SocketAddress GetServerAddress(); | |
71 | |
72 protected: | |
73 void OnAcceptEvent(AsyncSocket* socket); | |
74 virtual AsyncProxyServerSocket* WrapSocket(AsyncSocket* socket) = 0; | |
75 void OnBindingDestroyed(ProxyBinding* binding); | |
76 | |
77 private: | |
78 typedef std::list<ProxyBinding*> BindingList; | |
79 SocketFactory* ext_factory_; | |
80 SocketAddress ext_ip_; | |
81 std::unique_ptr<AsyncSocket> server_socket_; | |
82 BindingList bindings_; | |
83 RTC_DISALLOW_COPY_AND_ASSIGN(ProxyServer); | |
84 }; | |
85 | |
86 // SocksProxyServer is a simple extension of ProxyServer to implement SOCKS. | |
87 class SocksProxyServer : public ProxyServer { | |
88 public: | |
89 SocksProxyServer(SocketFactory* int_factory, const SocketAddress& int_addr, | |
90 SocketFactory* ext_factory, const SocketAddress& ext_ip) | |
91 : ProxyServer(int_factory, int_addr, ext_factory, ext_ip) { | |
92 } | |
93 protected: | |
94 AsyncProxyServerSocket* WrapSocket(AsyncSocket* socket) override; | |
95 RTC_DISALLOW_COPY_AND_ASSIGN(SocksProxyServer); | |
96 }; | |
97 | |
98 } // namespace rtc | |
99 | 18 |
100 #endif // WEBRTC_BASE_PROXYSERVER_H_ | 19 #endif // WEBRTC_BASE_PROXYSERVER_H_ |
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