Socks4ProxyServer.java — netty Source File

Source Code

/*
 * 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:
 *
 *   https://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.proxy;

import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LineBasedFrameDecoder;
import io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse;
import io.netty.handler.codec.socksx.v4.Socks4CommandRequest;
import io.netty.handler.codec.socksx.v4.Socks4CommandResponse;
import io.netty.handler.codec.socksx.v4.Socks4CommandStatus;
import io.netty.handler.codec.socksx.v4.Socks4CommandType;
import io.netty.handler.codec.socksx.v4.Socks4ServerDecoder;
import io.netty.handler.codec.socksx.v4.Socks4ServerEncoder;
import io.netty.util.CharsetUtil;
import io.netty.util.internal.SocketUtils;

import java.net.InetSocketAddress;
import java.net.SocketAddress;

import static org.junit.jupiter.api.Assertions.assertEquals;

final class Socks4ProxyServer extends ProxyServer {

    Socks4ProxyServer(boolean useSsl, TestMode testMode, InetSocketAddress destination) {
        super(useSsl, testMode, destination);
    }

    Socks4ProxyServer(boolean useSsl, TestMode testMode, InetSocketAddress destination, String username) {
        super(useSsl, testMode, destination, username, null);
    }

    @Override
    protected void configure(SocketChannel ch) throws Exception {
        ChannelPipeline p = ch.pipeline();
        switch (testMode) {
        case INTERMEDIARY:
            p.addLast(new Socks4ServerDecoder());
            p.addLast(Socks4ServerEncoder.INSTANCE);
            p.addLast(new Socks4IntermediaryHandler());
            break;
        case TERMINAL:
            p.addLast(new Socks4ServerDecoder());
            p.addLast(Socks4ServerEncoder.INSTANCE);
// ... (86 more lines)