com.proxy.ProxyServer.java Source code

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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 com.proxy;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

/**
 * Created by jerry on 2016/8/19.
 */
public final class ProxyServer {

    public static final int LOCAL_PORT = Integer.parseInt(System.getProperty("localPort", "8088"));
    public static final String REMOTE_HOST = System.getProperty("remoteHost", "beta-api.qoo-app.com");
    public static final int REMOTE_PORT = Integer.parseInt(System.getProperty("remotePort", "80"));

    public void start(final String remoteHost, final int remotePort) throws InterruptedException {
        System.err.println("Proxying *:" + LOCAL_PORT + " to " + REMOTE_HOST + ':' + REMOTE_PORT + " ...");

        // Configure the bootstrap.
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    .handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new ProxyChannelInit(remoteHost, remotePort))
                    .childOption(ChannelOption.AUTO_READ, false).bind(LOCAL_PORT).sync().channel().closeFuture()
                    .sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception {
        ExceptRequest.except(new Request().method("get").uri("/v6/welcomes"))
                .response("40000004 You can't found me").submit();
        new ProxyServer().start(REMOTE_HOST, REMOTE_PORT);
    }
}