Package io.netty.handler.codec.socksx.v4

Examples of io.netty.handler.codec.socksx.v4.Socks4CmdRequestDecoder

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    @Override
    public void messageReceived(ChannelHandlerContext ctx, SocksRequest socksRequest) throws Exception {
        switch (socksRequest.protocolVersion()) {
            case SOCKS4a:
                Socks4CmdRequest socksV4CmdRequest = (Socks4CmdRequest) socksRequest;
                if (socksV4CmdRequest.cmdType() == Socks4CmdType.CONNECT) {
                    ctx.pipeline().addLast(new SocksServerConnectHandler());
                    ctx.pipeline().remove(this);
                    ctx.fireChannelRead(socksRequest);
                } else {
                    ctx.close();
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    private final Bootstrap b = new Bootstrap();

    @Override
    public void messageReceived(final ChannelHandlerContext ctx, final SocksRequest message) throws Exception {
        if (message instanceof Socks4CmdRequest) {
            final Socks4CmdRequest request = (Socks4CmdRequest) message;
            Promise<Channel> promise = ctx.executor().newPromise();
            promise.addListener(
                    new GenericFutureListener<Future<Channel>>() {
                        @Override
                        public void operationComplete(final Future<Channel> future) throws Exception {
                            final Channel outboundChannel = future.getNow();
                            if (future.isSuccess()) {
                                ctx.channel().writeAndFlush(new Socks4CmdResponse(Socks4CmdStatus.SUCCESS))
                                        .addListener(new ChannelFutureListener() {
                                            @Override
                                            public void operationComplete(ChannelFuture channelFuture) {
                                                ctx.pipeline().remove(SocksServerConnectHandler.this);
                                                outboundChannel.pipeline().addLast(new RelayHandler(ctx.channel()));
                                                ctx.pipeline().addLast(new RelayHandler(outboundChannel));
                                            }
                                        });
                            } else {
                                ctx.channel().writeAndFlush(
                                        new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED)
                                );
                                SocksServerUtils.closeOnFlush(ctx.channel());
                            }
                        }
                    });

            final Channel inboundChannel = ctx.channel();
            b.group(inboundChannel.eventLoop())
                    .channel(NioSocketChannel.class)
                    .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)
                    .option(ChannelOption.SO_KEEPALIVE, true)
                    .handler(new DirectClientHandler(promise));

            b.connect(request.host(), request.port()).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (future.isSuccess()) {
                        // Connection established use handler provided results
                    } else {
                        // Close the connection if the connection attempt has failed.
                        ctx.channel().writeAndFlush(
                                new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED)
                        );
                        SocksServerUtils.closeOnFlush(ctx.channel());
                    }
                }
            });
        } else if (message instanceof Socks5CmdRequest) {
            final Socks5CmdRequest request = (Socks5CmdRequest) message;
            Promise<Channel> promise = ctx.executor().newPromise();
            promise.addListener(
                    new GenericFutureListener<Future<Channel>>() {
                        @Override
                        public void operationComplete(final Future<Channel> future) throws Exception {
                            final Channel outboundChannel = future.getNow();
                            if (future.isSuccess()) {
                                ctx.channel().writeAndFlush(
                                        new Socks5CmdResponse(Socks5CmdStatus.SUCCESS, request.addressType())
                                ).addListener(new ChannelFutureListener() {
                                            @Override
                                            public void operationComplete(ChannelFuture channelFuture) {
                                                ctx.pipeline().remove(SocksServerConnectHandler.this);
                                                outboundChannel.pipeline().addLast(new RelayHandler(ctx.channel()));
                                                ctx.pipeline().addLast(new RelayHandler(outboundChannel));
                                            }
                                        }
                                );
                            } else {
                                ctx.channel().writeAndFlush(
                                        new Socks5CmdResponse(Socks5CmdStatus.FAILURE, request.addressType()));
                                SocksServerUtils.closeOnFlush(ctx.channel());
                            }
                        }
                    });

            final Channel inboundChannel = ctx.channel();
            b.group(inboundChannel.eventLoop())
                    .channel(NioSocketChannel.class)
                    .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)
                    .option(ChannelOption.SO_KEEPALIVE, true)
                    .handler(new DirectClientHandler(promise));

            b.connect(request.host(), request.port()).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (future.isSuccess()) {
                        // Connection established use handler provided results
                    } else {
                        // Close the connection if the connection attempt has failed.
                        ctx.channel().writeAndFlush(
                                new Socks5CmdResponse(Socks5CmdStatus.FAILURE, request.addressType()));
                        SocksServerUtils.closeOnFlush(ctx.channel());
                    }
                }
            });
        } else {
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        if (raddr.isUnresolved()) {
            rhost = raddr.getHostString();
        } else {
            rhost = raddr.getAddress().getHostAddress();
        }
        return new Socks4CmdRequest(
                username != null? username : "", Socks4CmdType.CONNECT, rhost, raddr.getPort());
    }
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        private SocketAddress intermediaryDestination;

        @Override
        protected boolean handleProxyProtocol(ChannelHandlerContext ctx, Object msg) throws Exception {
            Socks4CmdRequest req = (Socks4CmdRequest) msg;
            Socks4CmdResponse res;

            if (!authenticate(ctx, req)) {
                res = new Socks4CmdResponse(Socks4CmdStatus.IDENTD_AUTH_FAILURE);
            } else {
                res = new Socks4CmdResponse(Socks4CmdStatus.SUCCESS);
                intermediaryDestination = new InetSocketAddress(req.host(), req.port());
            }

            ctx.write(res);
            ctx.pipeline().remove(Socks4MessageEncoder.class);
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    }

    private final class Socks4TerminalHandler extends TerminalHandler {
        @Override
        protected boolean handleProxyProtocol(ChannelHandlerContext ctx, Object msg) throws Exception {
            Socks4CmdRequest req = (Socks4CmdRequest) msg;
            boolean authzSuccess = authenticate(ctx, req);

            Socks4CmdResponse res;
            boolean sendGreeting = false;
            if (!authzSuccess) {
                res = new Socks4CmdResponse(Socks4CmdStatus.IDENTD_AUTH_FAILURE);
            } else if (!req.host().equals(destination.getHostString()) ||
                       req.port() != destination.getPort()) {
                res = new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED);
            } else {
                res = new Socks4CmdResponse(Socks4CmdStatus.SUCCESS);
                sendGreeting = true;
            }
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    @Override
    protected void configure(SocketChannel ch) throws Exception {
        ChannelPipeline p = ch.pipeline();
        switch (testMode) {
        case INTERMEDIARY:
            p.addLast(new Socks4CmdRequestDecoder());
            p.addLast(Socks4MessageEncoder.INSTANCE);
            p.addLast(new Socks4IntermediaryHandler());
            break;
        case TERMINAL:
            p.addLast(new Socks4CmdRequestDecoder());
            p.addLast(Socks4MessageEncoder.INSTANCE);
            p.addLast(new Socks4TerminalHandler());
            break;
        case UNRESPONSIVE:
            p.addLast(UnresponsiveHandler.INSTANCE);
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                    new GenericFutureListener<Future<Channel>>() {
                        @Override
                        public void operationComplete(final Future<Channel> future) throws Exception {
                            final Channel outboundChannel = future.getNow();
                            if (future.isSuccess()) {
                                ctx.channel().writeAndFlush(new Socks4CmdResponse(Socks4CmdStatus.SUCCESS))
                                        .addListener(new ChannelFutureListener() {
                                            @Override
                                            public void operationComplete(ChannelFuture channelFuture) {
                                                ctx.pipeline().remove(SocksServerConnectHandler.this);
                                                outboundChannel.pipeline().addLast(new RelayHandler(ctx.channel()));
                                                ctx.pipeline().addLast(new RelayHandler(outboundChannel));
                                            }
                                        });
                            } else {
                                ctx.channel().writeAndFlush(
                                        new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED)
                                );
                                SocksServerUtils.closeOnFlush(ctx.channel());
                            }
                        }
                    });

            final Channel inboundChannel = ctx.channel();
            b.group(inboundChannel.eventLoop())
                    .channel(NioSocketChannel.class)
                    .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)
                    .option(ChannelOption.SO_KEEPALIVE, true)
                    .handler(new DirectClientHandler(promise));

            b.connect(request.host(), request.port()).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (future.isSuccess()) {
                        // Connection established use handler provided results
                    } else {
                        // Close the connection if the connection attempt has failed.
                        ctx.channel().writeAndFlush(
                                new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED)
                        );
                        SocksServerUtils.closeOnFlush(ctx.channel());
                    }
                }
            });
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                username != null? username : "", Socks4CmdType.CONNECT, rhost, raddr.getPort());
    }

    @Override
    protected boolean handleResponse(ChannelHandlerContext ctx, Object response) throws Exception {
        final Socks4CmdResponse res = (Socks4CmdResponse) response;
        final Socks4CmdStatus status = res.cmdStatus();
        if (status == Socks4CmdStatus.SUCCESS) {
            return true;
        }

        throw new ProxyConnectException(exceptionMessage("cmdStatus: " + status));
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        private SocketAddress intermediaryDestination;

        @Override
        protected boolean handleProxyProtocol(ChannelHandlerContext ctx, Object msg) throws Exception {
            Socks4CmdRequest req = (Socks4CmdRequest) msg;
            Socks4CmdResponse res;

            if (!authenticate(ctx, req)) {
                res = new Socks4CmdResponse(Socks4CmdStatus.IDENTD_AUTH_FAILURE);
            } else {
                res = new Socks4CmdResponse(Socks4CmdStatus.SUCCESS);
                intermediaryDestination = new InetSocketAddress(req.host(), req.port());
            }

            ctx.write(res);
            ctx.pipeline().remove(Socks4MessageEncoder.class);
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        @Override
        protected boolean handleProxyProtocol(ChannelHandlerContext ctx, Object msg) throws Exception {
            Socks4CmdRequest req = (Socks4CmdRequest) msg;
            boolean authzSuccess = authenticate(ctx, req);

            Socks4CmdResponse res;
            boolean sendGreeting = false;
            if (!authzSuccess) {
                res = new Socks4CmdResponse(Socks4CmdStatus.IDENTD_AUTH_FAILURE);
            } else if (!req.host().equals(destination.getHostString()) ||
                       req.port() != destination.getPort()) {
                res = new Socks4CmdResponse(Socks4CmdStatus.REJECTED_OR_FAILED);
            } else {
                res = new Socks4CmdResponse(Socks4CmdStatus.SUCCESS);
                sendGreeting = true;
            }

            ctx.write(res);
            ctx.pipeline().remove(Socks4MessageEncoder.class);
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Related Classes of io.netty.handler.codec.socksx.v4.Socks4CmdRequestDecoder

  • io.netty.buffer.ByteBuf
  • io.netty.channel.embedded.EmbeddedChannel
  • io.netty.example.socksproxy.SocksServerConnectHandler
  • io.netty.example.socksproxy.SocksServerHandler
  • io.netty.handler.proxy.Socks4ProxyHandler
  • io.netty.handler.proxy.Socks4ProxyServer
  • io.netty.handler.proxy.Socks4ProxyServer$Socks4IntermediaryHandler
  • io.netty.handler.proxy.Socks4ProxyServer$Socks4TerminalHandler
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