/* * Copyright (c) 2010-2020 Nathan Rajlich * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ package org.java_websocket.extensions; import org.java_websocket.exceptions.InvalidDataException; import org.java_websocket.exceptions.InvalidFrameException; import org.java_websocket.framing.Framedata; /** * Class which represents the normal websocket implementation specified by rfc6455. *
* This is a fallback and will always be available for a Draft_6455 * * @since 1.3.5 */ public class DefaultExtension implements IExtension { @Override public void decodeFrame(Framedata inputFrame) throws InvalidDataException { //Nothing to do here } @Override public void encodeFrame(Framedata inputFrame) { //Nothing to do here } @Override public boolean acceptProvidedExtensionAsServer(String inputExtension) { return true; } @Override public boolean acceptProvidedExtensionAsClient(String inputExtension) { return true; } @Override public void isFrameValid(Framedata inputFrame) throws InvalidDataException { if (inputFrame.isRSV1() || inputFrame.isRSV2() || inputFrame.isRSV3()) { throw new InvalidFrameException( "bad rsv RSV1: " + inputFrame.isRSV1() + " RSV2: " + inputFrame.isRSV2() + " RSV3: " + inputFrame.isRSV3()); } } @Override public String getProvidedExtensionAsClient() { return ""; } @Override public String getProvidedExtensionAsServer() { return ""; } @Override public IExtension copyInstance() { return new DefaultExtension(); } public void reset() { //Nothing to do here. No internal stats. } @Override public String toString() { return getClass().getSimpleName(); } @Override public int hashCode() { return getClass().hashCode(); } @Override public boolean equals(Object o) { return this == o || o != null && getClass() == o.getClass(); } }