1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebSocketChannel_h 32 #define WebSocketChannel_h 33 34 #if ENABLE(WEB_SOCKETS) 35 36 #include "SocketStreamHandleClient.h" 37 #include "ThreadableWebSocketChannel.h" 38 #include "WebSocketHandshake.h" 39 #include <wtf/RefCounted.h> 40 41 namespace WebCore { 42 43 class ScriptExecutionContext; 44 class String; 45 class SocketStreamHandle; 46 class SocketStreamError; 47 class WebSocketChannelClient; 48 49 class WebSocketChannel : public RefCounted<WebSocketChannel>, public SocketStreamHandleClient, public ThreadableWebSocketChannel { 50 public: 51 static PassRefPtr<WebSocketChannel> create(ScriptExecutionContext* context, WebSocketChannelClient* client, const KURL& url, const String& protocol) { return adoptRef(new WebSocketChannel(context, client, url, protocol)); } 52 virtual ~WebSocketChannel(); 53 54 virtual void connect(); 55 virtual bool send(const String& message); 56 virtual unsigned long bufferedAmount() const; 57 virtual void close(); 58 virtual void disconnect(); // Will suppress didClose(). 59 60 virtual void didOpen(SocketStreamHandle*); 61 virtual void didClose(SocketStreamHandle*); 62 virtual void didReceiveData(SocketStreamHandle*, const char*, int); 63 virtual void didFail(SocketStreamHandle*, const SocketStreamError&); 64 virtual void didReceiveAuthenticationChallenge(SocketStreamHandle*, const AuthenticationChallenge&); 65 virtual void didCancelAuthenticationChallenge(SocketStreamHandle*, const AuthenticationChallenge&); 66 67 using RefCounted<WebSocketChannel>::ref; 68 using RefCounted<WebSocketChannel>::deref; 69 70 protected: 71 virtual void refThreadableWebSocketChannel() { ref(); } 72 virtual void derefThreadableWebSocketChannel() { deref(); } 73 74 private: 75 WebSocketChannel(ScriptExecutionContext*, WebSocketChannelClient*, const KURL&, const String& protocol); 76 77 bool appendToBuffer(const char* data, int len); 78 void skipBuffer(int len); 79 80 ScriptExecutionContext* m_context; 81 WebSocketChannelClient* m_client; 82 WebSocketHandshake m_handshake; 83 RefPtr<SocketStreamHandle> m_handle; 84 char* m_buffer; 85 int m_bufferSize; 86 }; 87 88 } // namespace WebCore 89 90 #endif // ENABLE(WEB_SOCKETS) 91 92 #endif // WebSocketChannel_h 93