Java tutorial
/* * Copyright (c) 2014 The APN-PROXY Project * * The APN-PROXY 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 com.xx_dev.apn.socks.test; import io.netty.buffer.Unpooled; import io.netty.channel.ChannelHandlerContext; import io.netty.channel.SimpleChannelInboundHandler; import io.netty.handler.codec.socks.SocksAddressType; import io.netty.handler.codec.socks.SocksAuthScheme; import io.netty.handler.codec.socks.SocksCmdRequest; import io.netty.handler.codec.socks.SocksCmdResponse; import io.netty.handler.codec.socks.SocksCmdResponseDecoder; import io.netty.handler.codec.socks.SocksCmdStatus; import io.netty.handler.codec.socks.SocksCmdType; import io.netty.handler.codec.socks.SocksInitRequest; import io.netty.handler.codec.socks.SocksResponse; import io.netty.util.CharsetUtil; import java.util.ArrayList; /** * @author xmx * @version $Id: com.xx_dev.apn.socks.test.SocksClientHandler 2015-02-28 15:41 (xmx) Exp $ */ public class SocksClientHandler extends SimpleChannelInboundHandler<SocksResponse> { @Override public void channelActive(ChannelHandlerContext ctx) throws Exception { super.channelActive(ctx); ctx.writeAndFlush(new SocksInitRequest(new ArrayList<SocksAuthScheme>(0))); } @Override protected void channelRead0(ChannelHandlerContext ctx, SocksResponse socksResponse) throws Exception { switch (socksResponse.responseType()) { case INIT: { ctx.pipeline().addAfter("log", "cmdResponseDecoder", new SocksCmdResponseDecoder()); ctx.write(new SocksCmdRequest(SocksCmdType.CONNECT, SocksAddressType.DOMAIN, "www.baidu.com", 80)); break; } case AUTH: ctx.pipeline().addAfter("log", "cmdResponseDecoder", new SocksCmdResponseDecoder()); ctx.write(new SocksCmdRequest(SocksCmdType.CONNECT, SocksAddressType.DOMAIN, "www.baidu.com", 80)); break; case CMD: SocksCmdResponse res = (SocksCmdResponse) socksResponse; if (res.cmdStatus() == SocksCmdStatus.SUCCESS) { ctx.pipeline().addLast(new SocksClientConnectHandler()); ctx.pipeline().remove(this); //ctx.fireChannelRead(socksResponse); String s = "GET / HTTP/1.1\r\nHOST: www.baidu.com\r\n\r\n"; ctx.writeAndFlush(Unpooled.copiedBuffer(s, CharsetUtil.UTF_8)); } else { ctx.close(); } break; case UNKNOWN: ctx.close(); break; } } @Override public void channelReadComplete(ChannelHandlerContext ctx) throws Exception { super.channelReadComplete(ctx); ctx.flush(); } }