content: /*
   * Copyright (c) 2010-2019 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 com.alibaba.gaiax.studio.third.socket.java_websocket.extensions;
  
  import androidx.annotation.Keep;
  
  import com.alibaba.gaiax.studio.third.socket.java_websocket.exceptions.InvalidDataException;
  import com.alibaba.gaiax.studio.third.socket.java_websocket.exceptions.InvalidFrameException;
  import com.alibaba.gaiax.studio.third.socket.java_websocket.framing.Framedata;
  
  /**
   * Class which represents the normal websocket implementation specified by rfc6455.
   * <p>
   * This is a fallback and will always be available for a Draft_6455
   *
   * @since 1.3.5
   */
  @Keep
  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();
      }
  }
  