Making SOCKS5 proxies with User Authentication work with Chrome

[Bolado]

Rod Version: v0.84.3

The code to demonstrate your question

httpClient := http.Client{}
var proxyStr string
var auth string
var dialer proxy.Dialer
if len(proxySorted) > 2 {
	auth := proxy.Auth{
		User:     proxySorted[2],
		Password: proxySorted[3],
	}
	dialer, _ = proxy.SOCKS5("tcp", proxySorted[0]+":"+proxySorted[1], &auth, proxy.Direct)
} else {
	dialer, _ = proxy.SOCKS5("tcp", proxySorted[0]+":"+proxySorted[1], nil, proxy.Direct)
}

  transport := &http.Transport{
  Dial: dialer.Dial,
}

httpClient.Transport = transport

While we can just use the above code to set auth for SOCKS proxies on the http.Client{}, we don't have a direct solution for doing that on Chrome, being able to use only SOCKS without user authentication with ease, I have been searching for a solution to be able to create a middleware type of proxy server, that way it would serve, and when I connected to the port, it connects to the remote SOCKS5 proxy and solves the auth for me, but no luck so far to find a solution, goproxy seems to only support HTTP/S type of proxies. Got the idea by a yad comment on a similar issue ( #62 ).

Thanks for your attention!

[Bolado]

I was able to do it, was at my face the whole time, I thought goproxy only supported HTTP proxies, but no... here is the code block I used:

func createProxyMiddleman(protocol string, remoteProxy []string) (port int, err error) {
	switch protocol {
	case "http":
		portProxy, _ := freeport.GetFreePort()
		middleProxy := goproxy.NewProxyHttpServer()
		middleProxy.Tr.Proxy = func(req *http.Request) (*url.URL, error) {
			return url.Parse("http://" + remoteProxy[0] + ":" + remoteProxy[1])
		}
		middleProxy.Logger = httpLogger()
		connectReqHandler := func(req *http.Request) {
			SetBasicAuth(remoteProxy[2], remoteProxy[3], req)
		}
		middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("http://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

		middleProxy.OnRequest().Do(goproxy.FuncReqHandler(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
			SetBasicAuth(username, password, req)
			return req, nil
		}))
		go http.ListenAndServe("localhost:"+strconv.Itoa(portProxy), middleProxy)
		return portProxy, nil
	case "socks":

		var dialer proxy.Dialer

		auth := proxy.Auth{
			User:     remoteProxy[2],
			Password: remoteProxy[3],
		}
		dialer, _ = proxy.SOCKS5("tcp", remoteProxy[0]+":"+remoteProxy[1], &auth, proxy.Direct)

		transport := &http.Transport{
			Dial: dialer.Dial,
		}
		portProxy, _ := freeport.GetFreePort()
		middleProxy := goproxy.NewProxyHttpServer()
		middleProxy.Tr = transport
		middleProxy.Logger = httpLogger()
		connectReqHandler := func(req *http.Request) {
			SetBasicAuth(remoteProxy[2], remoteProxy[3], req)
		}
		middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("socks://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

		middleProxy.OnRequest().Do(goproxy.FuncReqHandler(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
			SetBasicAuth(username, password, req)
			return req, nil
		}))

		go http.ListenAndServe("localhost:"+strconv.Itoa(portProxy), middleProxy)
		return portProxy, nil
	}
	return 0, fmt.Errorf("proxy type invalid")
}

Hope it helps somebody ☺
And thanks yad for everything you do with rod !

[ysmood]

Nice job 👍

[allanpk716]

need change

middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("socks://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

to

dialContextOld := func(network, address string) (net.Conn, error) { return dialer.Dial(network, address) } middleProxy.ConnectDial = dialContextOld

because NewConnectDialToProxyWithHandler not support socks:// protocol

[cplasfwst]

我能够做到这一点，一直在我面前，我以为 goproxy 只支持 HTTP 代理，但不......这是我使用的代码块：

func createProxyMiddleman(protocol string, remoteProxy []string) (port int, err error) {
	switch protocol {
	case "http":
		portProxy, _ := freeport.GetFreePort()
		middleProxy := goproxy.NewProxyHttpServer()
		middleProxy.Tr.Proxy = func(req *http.Request) (*url.URL, error) {
			return url.Parse("http://" + remoteProxy[0] + ":" + remoteProxy[1])
		}
		middleProxy.Logger = httpLogger()
		connectReqHandler := func(req *http.Request) {
			SetBasicAuth(remoteProxy[2], remoteProxy[3], req)
		}
		middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("http://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

		middleProxy.OnRequest().Do(goproxy.FuncReqHandler(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
			SetBasicAuth(username, password, req)
			return req, nil
		}))
		go http.ListenAndServe("localhost:"+strconv.Itoa(portProxy), middleProxy)
		return portProxy, nil
	case "socks":

		var dialer proxy.Dialer

		auth := proxy.Auth{
			User:     remoteProxy[2],
			Password: remoteProxy[3],
		}
		dialer, _ = proxy.SOCKS5("tcp", remoteProxy[0]+":"+remoteProxy[1], &auth, proxy.Direct)

		transport := &http.Transport{
			Dial: dialer.Dial,
		}
		portProxy, _ := freeport.GetFreePort()
		middleProxy := goproxy.NewProxyHttpServer()
		middleProxy.Tr = transport
		middleProxy.Logger = httpLogger()
		connectReqHandler := func(req *http.Request) {
			SetBasicAuth(remoteProxy[2], remoteProxy[3], req)
		}
		middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("socks://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

		middleProxy.OnRequest().Do(goproxy.FuncReqHandler(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
			SetBasicAuth(username, password, req)
			return req, nil
		}))

		go http.ListenAndServe("localhost:"+strconv.Itoa(portProxy), middleProxy)
		return portProxy, nil
	}
	return 0, fmt.Errorf("proxy type invalid")
}

希望它对某人有帮助 ☺ 感谢您使用 rod 所做的一切！

Can I ask for a complete example? I don't understand, or what packages need to be imported?

[cplasfwst]

需要改变

middleProxy.ConnectDial = middleProxy.NewConnectDialToProxyWithHandler("socks://"+remoteProxy[0]+":"+remoteProxy[1], connectReqHandler)

到

dialContextOld := func(network, address string) (net.Conn, error) { return dialer.Dial(network, address) } middleProxy.ConnectDial = dialContextOld

因为NewConnectDialToProxyWithHandler不支持socks://协议

Could you please guide me as to which third-party library is goproxy in this method? or URL