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/*
 * Copyright 2012 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.socks;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ReplayingDecoder;

import java.util.List;

/**
 * Decodes {@link ByteBuf}s into {@link SocksAuthResponse}.
 * Before returning SocksResponse decoder removes itself from pipeline.
 */
public class SocksAuthResponseDecoder extends ReplayingDecoder {
    private static final String name = "SOCKS_AUTH_RESPONSE_DECODER";

    public static String getName() {
        return name;
    }

    private SocksSubnegotiationVersion version;
    private SocksAuthStatus authStatus;
    private SocksResponse msg = SocksCommonUtils.UNKNOWN_SOCKS_RESPONSE;

    public SocksAuthResponseDecoder() {
        super(State.CHECK_PROTOCOL_VERSION);
    }

    @Override
    protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List