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1 /*
2  * libjingle
3  * Copyright 2004--2005, Google Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  *  1. Redistributions of source code must retain the above copyright notice,
9  *     this list of conditions and the following disclaimer.
10  *  2. Redistributions in binary form must reproduce the above copyright notice,
11  *     this list of conditions and the following disclaimer in the documentation
12  *     and/or other materials provided with the distribution.
13  *  3. The name of the author may not be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef TALK_XMPP_XMPPSOCKET_H_
29 #define TALK_XMPP_XMPPSOCKET_H_
30 
31 #include "talk/xmpp/asyncsocket.h"
32 #include "talk/xmpp/xmppengine.h"
33 #include "webrtc/base/asyncsocket.h"
34 #include "webrtc/base/bytebuffer.h"
35 #include "webrtc/base/sigslot.h"
36 
37 // The below define selects the SSLStreamAdapter implementation for
38 // SSL, as opposed to the SSLAdapter socket adapter.
39 // #define USE_SSLSTREAM
40 
41 namespace rtc {
42   class StreamInterface;
43   class SocketAddress;
44 };
45 extern rtc::AsyncSocket* cricket_socket_;
46 
47 namespace buzz {
48 
49 class XmppSocket : public buzz::AsyncSocket, public sigslot::has_slots<> {
50 public:
51   XmppSocket(buzz::TlsOptions tls);
52   ~XmppSocket();
53 
54   virtual buzz::AsyncSocket::State state();
55   virtual buzz::AsyncSocket::Error error();
56   virtual int GetError();
57 
58   virtual bool Connect(const rtc::SocketAddress& addr);
59   virtual bool Read(char * data, size_t len, size_t* len_read);
60   virtual bool Write(const char * data, size_t len);
61   virtual bool Close();
62   virtual bool StartTls(const std::string & domainname);
63 
64   sigslot::signal1<int> SignalCloseEvent;
65 
66 private:
67   void CreateCricketSocket(int family);
68 #ifndef USE_SSLSTREAM
69   void OnReadEvent(rtc::AsyncSocket * socket);
70   void OnWriteEvent(rtc::AsyncSocket * socket);
71   void OnConnectEvent(rtc::AsyncSocket * socket);
72   void OnCloseEvent(rtc::AsyncSocket * socket, int error);
73 #else  // USE_SSLSTREAM
74   void OnEvent(rtc::StreamInterface* stream, int events, int err);
75 #endif  // USE_SSLSTREAM
76 
77   rtc::AsyncSocket * cricket_socket_;
78 #ifdef USE_SSLSTREAM
79   rtc::StreamInterface *stream_;
80 #endif  // USE_SSLSTREAM
81   buzz::AsyncSocket::State state_;
82   rtc::ByteBuffer buffer_;
83   buzz::TlsOptions tls_;
84 };
85 
86 }  // namespace buzz
87 
88 #endif // TALK_XMPP_XMPPSOCKET_H_
89 
90