Examples with Socks4CommandRequest io.netty.handler.codec.socksx.v4.Socks4CommandRequest used on opensource projects

Example 1 with Socks4CommandRequest

use of io.netty.handler.codec.socksx.v4.Socks4CommandRequest in project netty by netty.

the class SocksServerHandler method channelRead0.

@Override
public void channelRead0(ChannelHandlerContext ctx, SocksMessage socksRequest) throws Exception {
    switch(socksRequest.version()) {
        case SOCKS4a:
            Socks4CommandRequest socksV4CmdRequest = (Socks4CommandRequest) socksRequest;
            if (socksV4CmdRequest.type() == Socks4CommandType.CONNECT) {
                ctx.pipeline().addLast(new SocksServerConnectHandler());
                ctx.pipeline().remove(this);
                ctx.fireChannelRead(socksRequest);
            } else {
                ctx.close();
            }
            break;
        case SOCKS5:
            if (socksRequest instanceof Socks5InitialRequest) {
                // auth support example
                //ctx.pipeline().addFirst(new Socks5PasswordAuthRequestDecoder());
                //ctx.write(new DefaultSocks5AuthMethodResponse(Socks5AuthMethod.PASSWORD));
                ctx.pipeline().addFirst(new Socks5CommandRequestDecoder());
                ctx.write(new DefaultSocks5InitialResponse(Socks5AuthMethod.NO_AUTH));
            } else if (socksRequest instanceof Socks5PasswordAuthRequest) {
                ctx.pipeline().addFirst(new Socks5CommandRequestDecoder());
                ctx.write(new DefaultSocks5PasswordAuthResponse(Socks5PasswordAuthStatus.SUCCESS));
            } else if (socksRequest instanceof Socks5CommandRequest) {
                Socks5CommandRequest socks5CmdRequest = (Socks5CommandRequest) socksRequest;
                if (socks5CmdRequest.type() == Socks5CommandType.CONNECT) {
                    ctx.pipeline().addLast(new SocksServerConnectHandler());
                    ctx.pipeline().remove(this);
                    ctx.fireChannelRead(socksRequest);
                } else {
                    ctx.close();
                }
            } else {
                ctx.close();
            }
            break;
        case UNKNOWN:
            ctx.close();
            break;
    }
}

Example 2 with Socks4CommandRequest

use of io.netty.handler.codec.socksx.v4.Socks4CommandRequest in project netty by netty.

the class SocksServerConnectHandler method channelRead0.

@Override
public void channelRead0(final ChannelHandlerContext ctx, final SocksMessage message) throws Exception {
    if (message instanceof Socks4CommandRequest) {
        final Socks4CommandRequest request = (Socks4CommandRequest) message;
        Promise<Channel> promise = ctx.executor().newPromise();
        promise.addListener(new FutureListener<Channel>() {

            @Override
            public void operationComplete(final Future<Channel> future) throws Exception {
                final Channel outboundChannel = future.getNow();
                if (future.isSuccess()) {
                    ChannelFuture responseFuture = ctx.channel().writeAndFlush(new DefaultSocks4CommandResponse(Socks4CommandStatus.SUCCESS));
                    responseFuture.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 DefaultSocks4CommandResponse(Socks4CommandStatus.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.dstAddr(), request.dstPort()).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 DefaultSocks4CommandResponse(Socks4CommandStatus.REJECTED_OR_FAILED));
                    SocksServerUtils.closeOnFlush(ctx.channel());
                }
            }
        });
    } else if (message instanceof Socks5CommandRequest) {
        final Socks5CommandRequest request = (Socks5CommandRequest) message;
        Promise<Channel> promise = ctx.executor().newPromise();
        promise.addListener(new FutureListener<Channel>() {

            @Override
            public void operationComplete(final Future<Channel> future) throws Exception {
                final Channel outboundChannel = future.getNow();
                if (future.isSuccess()) {
                    ChannelFuture responseFuture = ctx.channel().writeAndFlush(new DefaultSocks5CommandResponse(Socks5CommandStatus.SUCCESS, request.dstAddrType(), request.dstAddr(), request.dstPort()));
                    responseFuture.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 DefaultSocks5CommandResponse(Socks5CommandStatus.FAILURE, request.dstAddrType()));
                    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.dstAddr(), request.dstPort()).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 DefaultSocks5CommandResponse(Socks5CommandStatus.FAILURE, request.dstAddrType()));
                    SocksServerUtils.closeOnFlush(ctx.channel());
                }
            }
        });
    } else {
        ctx.close();
    }
}