1/* 2 * Copyright (C) 2011 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 WebSocketHandshake_h 32#define WebSocketHandshake_h 33 34#if ENABLE(WEB_SOCKETS) 35 36#include "URL.h" 37#include "ResourceResponse.h" 38#include "WebSocketExtensionDispatcher.h" 39#include "WebSocketExtensionProcessor.h" 40#include <wtf/PassOwnPtr.h> 41#include <wtf/text/WTFString.h> 42 43namespace WebCore { 44 45class ResourceRequest; 46class ScriptExecutionContext; 47 48class WebSocketHandshake { 49 WTF_MAKE_NONCOPYABLE(WebSocketHandshake); WTF_MAKE_FAST_ALLOCATED; 50public: 51 enum Mode { 52 Incomplete, Normal, Failed, Connected 53 }; 54 WebSocketHandshake(const URL&, const String& protocol, ScriptExecutionContext*); 55 ~WebSocketHandshake(); 56 57 const URL& url() const; 58 void setURL(const URL&); 59 const String host() const; 60 61 const String& clientProtocol() const; 62 void setClientProtocol(const String&); 63 64 bool secure() const; 65 66 String clientOrigin() const; 67 String clientLocation() const; 68 69 CString clientHandshakeMessage() const; 70 ResourceRequest clientHandshakeRequest() const; 71 72 void reset(); 73 void clearScriptExecutionContext(); 74 75 int readServerHandshake(const char* header, size_t len); 76 Mode mode() const; 77 String failureReason() const; // Returns a string indicating the reason of failure if mode() == Failed. 78 79 String serverWebSocketProtocol() const; 80 String serverSetCookie() const; 81 String serverSetCookie2() const; 82 String serverUpgrade() const; 83 String serverConnection() const; 84 String serverWebSocketAccept() const; 85 String acceptedExtensions() const; 86 87 const ResourceResponse& serverHandshakeResponse() const; 88 89 void addExtensionProcessor(PassOwnPtr<WebSocketExtensionProcessor>); 90 91 static String getExpectedWebSocketAccept(const String& secWebSocketKey); 92 93private: 94 URL httpURLForAuthenticationAndCookies() const; 95 96 int readStatusLine(const char* header, size_t headerLength, int& statusCode, String& statusText); 97 98 // Reads all headers except for the two predefined ones. 99 const char* readHTTPHeaders(const char* start, const char* end); 100 void processHeaders(); 101 bool checkResponseHeaders(); 102 103 URL m_url; 104 String m_clientProtocol; 105 bool m_secure; 106 ScriptExecutionContext* m_context; 107 108 Mode m_mode; 109 110 ResourceResponse m_serverHandshakeResponse; 111 112 String m_failureReason; 113 114 String m_secWebSocketKey; 115 String m_expectedAccept; 116 117 WebSocketExtensionDispatcher m_extensionDispatcher; 118}; 119 120} // namespace WebCore 121 122#endif // ENABLE(WEB_SOCKETS) 123 124#endif // WebSocketHandshake_h 125