io.netty.handler.codec.socksx.v4.Socks4CommandType Java Examples

The following examples show how to use io.netty.handler.codec.socksx.v4.Socks4CommandType. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: ProxyToServerConnection.java From PowerTunnel with MIT License

6 votes

@Override
protected Future<?> execute() {
    InetSocketAddress destinationAddress;
    try {
        destinationAddress = addressFor(serverHostAndPort, proxyServer);
    } catch (UnknownHostException e) {
        return channel.newFailedFuture(e);
    }

    DefaultSocks4CommandRequest connectRequest = new DefaultSocks4CommandRequest(
            Socks4CommandType.CONNECT, destinationAddress.getHostString(), destinationAddress.getPort());

    addFirstOrReplaceHandler(SOCKS_ENCODER_NAME, Socks4ClientEncoder.INSTANCE);
    addFirstOrReplaceHandler(SOCKS_DECODER_NAME, new Socks4ClientDecoder());
    return writeToChannel(connectRequest);
}

Example #2

Source File: Socks4ProxyHandler.java From netty-4.1.22 with Apache License 2.0

5 votes

@Override
protected Object newInitialMessage(ChannelHandlerContext ctx) throws Exception {
    InetSocketAddress raddr = destinationAddress();
    String rhost;
    if (raddr.isUnresolved()) {
        rhost = raddr.getHostString();
    } else {
        rhost = raddr.getAddress().getHostAddress();
    }
    return new DefaultSocks4CommandRequest(
            Socks4CommandType.CONNECT, rhost, raddr.getPort(), username != null? username : "");
}

Example #3

Source File: Socks4ProxyServer.java From netty-4.1.22 with Apache License 2.0

5 votes

private boolean authenticate(ChannelHandlerContext ctx, Socks4CommandRequest req) {
    assertThat(req.type(), is(Socks4CommandType.CONNECT));

    if (testMode != TestMode.INTERMEDIARY) {
        ctx.pipeline().addBefore(ctx.name(), "lineDecoder", new LineBasedFrameDecoder(64, false, true));
    }

    boolean authzSuccess;
    if (username != null) {
        authzSuccess = username.equals(req.userId());
    } else {
        authzSuccess = true;
    }
    return authzSuccess;
}

Example #4

Source File: SocksProxyHandler.java From nitmproxy with MIT License

5 votes

@Override
protected void channelRead0(ChannelHandlerContext ctx, SocksMessage socksMessage)
        throws Exception {
    switch (socksMessage.version()) {
    case SOCKS4a:
        Socks4CommandRequest socksV4CmdRequest = (Socks4CommandRequest) socksMessage;
        if (socksV4CmdRequest.type() == Socks4CommandType.CONNECT) {
            onSocksSuccess(ctx, socksV4CmdRequest);
        } else {
            ctx.close();
        }
        break;
    case SOCKS5:
        if (socksMessage instanceof Socks5InitialRequest) {
            ctx.pipeline().addFirst(addChannelHandler(new Socks5CommandRequestDecoder()));
            ctx.writeAndFlush(new DefaultSocks5InitialResponse(Socks5AuthMethod.NO_AUTH));
        } else if (socksMessage instanceof Socks5PasswordAuthRequest) {
            ctx.pipeline().addFirst(addChannelHandler(new Socks5CommandRequestDecoder()));
            ctx.writeAndFlush(new DefaultSocks5PasswordAuthResponse(Socks5PasswordAuthStatus.SUCCESS));
        } else if (socksMessage instanceof Socks5CommandRequest) {
            Socks5CommandRequest socks5CmdRequest = (Socks5CommandRequest) socksMessage;
            if (socks5CmdRequest.type() == Socks5CommandType.CONNECT) {
                onSocksSuccess(ctx, socks5CmdRequest);
            } else {
                ctx.close();
            }
        } else {
            ctx.close();
        }
        break;
    case UNKNOWN:
        ctx.close();
        break;
    }
}

Example #5

Source File: SocksServerHandler.java From netty-4.1.22 with Apache License 2.0

4 votes

@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;
    }
}