List of usage examples for io.netty.handler.codec.socks SocksCmdRequest encodeAsByteBuf
@Override public void encodeAsByteBuf(ByteBuf byteBuf)
From source file:cc.agentx.client.net.nio.XConnectHandler.java
License:Apache License
@Override public void channelRead0(final ChannelHandlerContext ctx, final SocksCmdRequest request) throws Exception { boolean proxyMode = isAgentXNeeded(request.host()); log.info("\tClient -> Proxy \tTarget {}:{} [{}]", request.host(), request.port(), proxyMode ? "AGENTX" : "DIRECT"); Promise<Channel> promise = ctx.executor().newPromise(); promise.addListener(new FutureListener<Channel>() { @Override//from w ww . ja va 2s . c om public void operationComplete(final Future<Channel> future) throws Exception { final Channel outboundChannel = future.getNow(); if (future.isSuccess()) { ctx.channel().writeAndFlush(new SocksCmdResponse(SocksCmdStatus.SUCCESS, request.addressType())) .addListener(channelFuture -> { ByteBuf byteBuf = Unpooled.buffer(); request.encodeAsByteBuf(byteBuf); if (byteBuf.hasArray()) { byte[] xRequestBytes = new byte[byteBuf.readableBytes()]; byteBuf.getBytes(0, xRequestBytes); if (proxyMode) { // handshaking to remote proxy xRequestBytes = requestWrapper.wrap(xRequestBytes); outboundChannel.writeAndFlush(Unpooled.wrappedBuffer( exposeRequest ? xRequestBytes : wrapper.wrap(xRequestBytes))); } // task handover ReferenceCountUtil.retain(request); // auto-release? a trap? ctx.pipeline().remove(XConnectHandler.this); outboundChannel.pipeline().addLast(new XRelayHandler(ctx.channel(), proxyMode ? wrapper : rawWrapper, false)); ctx.pipeline().addLast(new XRelayHandler(outboundChannel, proxyMode ? wrapper : rawWrapper, true)); } }); } else { ctx.channel() .writeAndFlush(new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType())); if (ctx.channel().isActive()) { ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE); } } } }); String host = request.host(); int port = request.port(); if (host.equals(config.getConsoleDomain())) { host = "localhost"; port = config.getConsolePort(); } else if (proxyMode) { host = config.getServerHost(); port = config.getServerPort(); } // ping target bootstrap.group(ctx.channel().eventLoop()).channel(NioSocketChannel.class) .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000).option(ChannelOption.SO_KEEPALIVE, true) .handler(new XPingHandler(promise, System.currentTimeMillis())).connect(host, port) .addListener(new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture future) throws Exception { if (!future.isSuccess()) { ctx.channel().writeAndFlush( new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType())); if (ctx.channel().isActive()) { ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE); } } } }); }