io.netty.handler.codec.socksx.v5.Socks5InitialResponseDecoder Maven / Gradle / Ivy
/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.handler.codec.socksx.v5;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.DecoderException;
import io.netty.handler.codec.DecoderResult;
import io.netty.handler.codec.ReplayingDecoder;
import io.netty.handler.codec.socksx.SocksVersion;
import io.netty.handler.codec.socksx.v5.Socks5InitialResponseDecoder.State;
import java.util.List;
/**
* Decodes a single {@link Socks5InitialResponse} from the inbound {@link ByteBuf}s.
* On successful decode, this decoder will forward the received data to the next handler, so that
* other handler can remove or replace this decoder later. On failed decode, this decoder will
* discard the received data, so that other handler closes the connection later.
*/
public class Socks5InitialResponseDecoder extends ReplayingDecoder {
enum State {
INIT,
SUCCESS,
FAILURE
}
public Socks5InitialResponseDecoder() {
super(State.INIT);
}
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List