node-socks5-server's Introduction

node-socks5-server

Provides the socks5 package that implements a SOCKS5 server. SOCKS (Secure Sockets) is used to route traffic between a client and server through an intermediate proxy layer. This can be used to bypass firewalls or NATs.

Features

"No Auth" mode
User/Password authentication
Support for the CONNECT command
Support UDP
set localAddress interface
use specific DNS server

Usage for command

Install global

npm i -g node-socks5-server

Startup

node-socks5

Usage for package

Install in your project

npm i node-socks5-server

Require

Below is a simple example of usage. Go examples folder see more.

const socks5 = require('node-socks5-server');

const server = socks5.createServer();
server.listen(1080);

Test with curl

curl http://www.baidu.com/ --socks5 localhost:1080
curl http://www.baidu.com/ --socks5-hostname localhost:1080
curl http://www.baidu.com/ --socks5 user:password@localhost:1080

TODO

bind

Thanks

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node-socks5-server's Issues

UDP Support

Please implement UDP support, I could not ... :(

for inspiration
https://github.com/blinksocks/blinksocks

if (data[1] == 0x03) {
  console.log("UDP ASSOCIATE");
  this.reply(0x00, { address: "0.0.0.0", family: "IPv4", port: 1080});
  return this.socket.end();

var udp = require("dgram");
const udpServer = udp.createSocket("udp4");
udpServer.on("error", (err) => {
  console.log(`server error:\n${err.stack}`);
  udpServer.close();
});
udpServer.on("message", (msg, client_info) => {
  let dstHost = `${msg[4]}.${msg[5]}.${msg[6]}.${msg[7]}`;
  let dstPort = (msg[8] << 8) | msg[9];

  var client = udp.createSocket("udp4");
  let pos = 8;
  const data = msg.slice(pos + 2);
  client.send(data, dstPort, dstHost, (err) => {
    console.log("Data sent to HOST", dstHost, dstPort);
  });
  client.on("message", (msg, host_info) => {
    console.log("RESPONSE FROM HOST", client_info);
    udpServer.send(msg, client_info.port, client_info.host, function (error) {
      console.log("RESPONSE TO CLIENT");
      client.close();
    });
  });
});
udpServer.on("listening", () => {
  const address = udpServer.address();
  console.log(`UDP listening ${address.address}:${address.port}`);
});
udpServer.bind(1080);

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