| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.pulsar.socks5; |
| |
| import io.netty.bootstrap.ServerBootstrap; |
| import io.netty.channel.ChannelFuture; |
| import io.netty.channel.ChannelInitializer; |
| import io.netty.channel.ChannelOption; |
| import io.netty.channel.EventLoopGroup; |
| import io.netty.channel.nio.NioEventLoopGroup; |
| import io.netty.channel.socket.SocketChannel; |
| import io.netty.channel.socket.nio.NioServerSocketChannel; |
| import io.netty.handler.codec.socksx.v5.Socks5CommandRequestDecoder; |
| import io.netty.handler.codec.socksx.v5.Socks5InitialRequestDecoder; |
| import io.netty.handler.codec.socksx.v5.Socks5PasswordAuthRequestDecoder; |
| import io.netty.handler.codec.socksx.v5.Socks5ServerEncoder; |
| import io.netty.handler.timeout.IdleStateHandler; |
| import lombok.Getter; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.pulsar.socks5.config.Socks5Config; |
| import org.apache.pulsar.socks5.handler.CommandRequestHandler; |
| import org.apache.pulsar.socks5.handler.IdleHandler; |
| import org.apache.pulsar.socks5.handler.InitialRequestHandler; |
| import org.apache.pulsar.socks5.handler.PasswordAuthRequestHandler; |
| |
| @Slf4j |
| public class Socks5Server { |
| |
| @Getter |
| private EventLoopGroup boss = new NioEventLoopGroup(); |
| private EventLoopGroup worker = new NioEventLoopGroup(); |
| |
| private final Socks5Config socks5Config; |
| |
| public Socks5Server(Socks5Config socks5Config) { |
| this.socks5Config = socks5Config; |
| } |
| |
| public void start() throws Exception { |
| ServerBootstrap bootstrap = new ServerBootstrap(); |
| bootstrap.group(boss, worker) |
| .channel(NioServerSocketChannel.class) |
| .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000) |
| .childHandler(new ChannelInitializer<SocketChannel>() { |
| @Override |
| protected void initChannel(SocketChannel ch) throws Exception { |
| ch.pipeline().addLast(new IdleStateHandler(90, 90, 0)); |
| ch.pipeline().addLast(new IdleHandler()); |
| ch.pipeline().addLast(Socks5ServerEncoder.DEFAULT); |
| ch.pipeline().addLast(new Socks5InitialRequestDecoder()); |
| ch.pipeline().addLast(new InitialRequestHandler(socks5Config)); |
| if (socks5Config.isEnableAuth()) { |
| ch.pipeline().addLast(new Socks5PasswordAuthRequestDecoder()); |
| ch.pipeline().addLast(new PasswordAuthRequestHandler()); |
| } |
| ch.pipeline().addLast(new Socks5CommandRequestDecoder()); |
| ch.pipeline().addLast(new CommandRequestHandler(Socks5Server.this)); |
| } |
| }); |
| ChannelFuture future = bootstrap.bind(socks5Config.getPort()).sync(); |
| if (log.isInfoEnabled()) { |
| log.info("bind port : {}", socks5Config.getPort()); |
| } |
| future.channel().closeFuture().sync(); |
| } |
| |
| public void shutdown() { |
| boss.shutdownGracefully(); |
| worker.shutdownGracefully(); |
| } |
| |
| } |