1/* 2 * Copyright (C) 2012 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 WebSocketExtensionDispatcher_h 32#define WebSocketExtensionDispatcher_h 33 34#if ENABLE(WEB_SOCKETS) 35 36#include "WebSocketExtensionProcessor.h" 37#include <wtf/OwnPtr.h> 38#include <wtf/PassOwnPtr.h> 39#include <wtf/Vector.h> 40#include <wtf/text/StringBuilder.h> 41#include <wtf/text/WTFString.h> 42 43namespace WebCore { 44 45class WebSocketExtensionDispatcher { 46public: 47 WebSocketExtensionDispatcher() { } 48 49 void reset(); 50 void addProcessor(PassOwnPtr<WebSocketExtensionProcessor>); 51 const String createHeaderValue() const; 52 53 bool processHeaderValue(const String&); 54 String acceptedExtensions() const; 55 String failureReason() const; 56 57private: 58 void appendAcceptedExtension(const String& extensionToken, HashMap<String, String>& extensionParameters); 59 void fail(const String& reason); 60 61 Vector<OwnPtr<WebSocketExtensionProcessor>> m_processors; 62 StringBuilder m_acceptedExtensionsBuilder; 63 String m_failureReason; 64}; 65 66} 67 68#endif // ENABLE(WEB_SOCKETS) 69 70#endif // WebSocketExtensionDispatcher_h 71