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