Package io.netty.handler.codec.socksx.v5

Examples of io.netty.handler.codec.socksx.v5.Socks5CmdResponse

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        return authScheme;
    }

    private void sendConnectCommand(ChannelHandlerContext ctx) throws Exception {
        InetSocketAddress raddr = destinationAddress();
        Socks5AddressType addrType;
        String rhost;
        if (raddr.isUnresolved()) {
            addrType = Socks5AddressType.DOMAIN;
            rhost = raddr.getHostString();
        } else {
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            ctx.pipeline().addBefore("encoder", "decoder", new Socks5AuthRequestDecoder());
            ctx.write(new Socks5InitResponse(Socks5AuthScheme.AUTH_PASSWORD));
            return false;
        }

        Socks5AuthRequest req = (Socks5AuthRequest) msg;
        if (req.username().equals(username) && req.password().equals(password)) {
            ctx.pipeline().addBefore("encoder", "decoder", new Socks5CmdRequestDecoder());
            ctx.write(new Socks5AuthResponse(Socks5AuthStatus.SUCCESS));
            return true;
        }
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                break;
            case AUTH_PASSWORD:
                // In case of password authentication, send an authentication request.
                ctx.pipeline().addBefore(encoderName, decoderName, new Socks5AuthResponseDecoder());
                sendToProxyServer(
                        new Socks5AuthRequest(username != null? username : "", password != null? password : ""));
                break;
            default:
                // Should never reach here.
                throw new Error();
            }
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            ctx.write(new Socks5InitResponse(Socks5AuthScheme.NO_AUTH));
            return true;
        }

        if (msg instanceof Socks5InitRequest) {
            ctx.pipeline().addBefore("encoder", "decoder", new Socks5AuthRequestDecoder());
            ctx.write(new Socks5InitResponse(Socks5AuthScheme.AUTH_PASSWORD));
            return false;
        }

        Socks5AuthRequest req = (Socks5AuthRequest) msg;
        if (req.username().equals(username) && req.password().equals(password)) {
            ctx.pipeline().addBefore("encoder", "decoder", new Socks5CmdRequestDecoder());
            ctx.write(new Socks5AuthResponse(Socks5AuthStatus.SUCCESS));
            return true;
        }

        ctx.pipeline().addBefore("encoder", "decoder", new Socks5AuthRequestDecoder());
        ctx.write(new Socks5AuthResponse(Socks5AuthStatus.FAILURE));
        return false;
    }
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                        ctx.write(new Socks5InitResponse(Socks5AuthScheme.NO_AUTH));
                        break;
                    }
                    case AUTH:
                        ctx.pipeline().addFirst(new Socks5CmdRequestDecoder());
                        ctx.write(new Socks5AuthResponse(Socks5AuthStatus.SUCCESS));
                        break;
                    case CMD:
                        Socks5CmdRequest socks5CmdRequest = (Socks5CmdRequest) socksRequest;
                        if (socks5CmdRequest.cmdType() == Socks5CmdType.CONNECT) {
                            ctx.pipeline().addLast(new SocksServerConnectHandler());
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        }

        Socks5AuthRequest req = (Socks5AuthRequest) msg;
        if (req.username().equals(username) && req.password().equals(password)) {
            ctx.pipeline().addBefore("encoder", "decoder", new Socks5CmdRequestDecoder());
            ctx.write(new Socks5AuthResponse(Socks5AuthStatus.SUCCESS));
            return true;
        }

        ctx.pipeline().addBefore("encoder", "decoder", new Socks5AuthRequestDecoder());
        ctx.write(new Socks5AuthResponse(Socks5AuthStatus.FAILURE));
        return false;
    }
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            return false;
        }

        if (response instanceof Socks5AuthResponse) {
            // Received an authentication response from the server.
            Socks5AuthResponse res = (Socks5AuthResponse) response;
            if (res.authStatus() != Socks5AuthStatus.SUCCESS) {
                throw new ProxyConnectException(exceptionMessage("authStatus: " + res.authStatus()));
            }

            sendConnectCommand(ctx);
            return false;
        }

        // This should be the last message from the server.
        Socks5CmdResponse res = (Socks5CmdResponse) response;
        if (res.cmdStatus() != Socks5CmdStatus.SUCCESS) {
            throw new ProxyConnectException(exceptionMessage("cmdStatus: " + res.cmdStatus()));
        }

        return true;
    }
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            case NO_AUTH:
                sendConnectCommand(ctx);
                break;
            case AUTH_PASSWORD:
                // In case of password authentication, send an authentication request.
                ctx.pipeline().addBefore(encoderName, decoderName, new Socks5AuthResponseDecoder());
                sendToProxyServer(
                        new Socks5AuthRequest(username != null? username : "", password != null? password : ""));
                break;
            default:
                // Should never reach here.
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    @Override
    protected boolean handleResponse(ChannelHandlerContext ctx, Object response) throws Exception {
        if (response instanceof Socks5InitResponse) {
            Socks5InitResponse res = (Socks5InitResponse) response;
            Socks5AuthScheme authScheme = socksAuthScheme();

            if (res.authScheme() != Socks5AuthScheme.NO_AUTH && authScheme != res.authScheme()) {
                // Server did not allow unauthenticated access nor accept the requested authentication scheme.
                throw new ProxyConnectException(exceptionMessage("unexpected authScheme: " + res.authScheme()));
            }
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        return true;
    }

    private Socks5AuthScheme socksAuthScheme() {
        Socks5AuthScheme authScheme;
        if (username == null && password == null) {
            authScheme = Socks5AuthScheme.NO_AUTH;
        } else {
            authScheme = Socks5AuthScheme.AUTH_PASSWORD;
        }
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Related Classes of io.netty.handler.codec.socksx.v5.Socks5CmdResponse

  • io.netty.buffer.ByteBuf
  • io.netty.channel.embedded.EmbeddedChannel
  • io.netty.example.socksproxy.SocksServerConnectHandler
  • io.netty.example.socksproxy.SocksServerHandler
  • io.netty.handler.proxy.Socks5ProxyHandler
  • io.netty.handler.proxy.Socks5ProxyServer
  • io.netty.handler.proxy.Socks5ProxyServer$Socks5IntermediaryHandler
  • io.netty.handler.proxy.Socks5ProxyServer$Socks5TerminalHandler
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