SOCKS4 proxy sample

SOCKS4 does not have authentication

If you are unfamiliar with the concepts please head to Concepts first.

package main

import (
	"context"
	"crypto/tls"
	"io"
	"log"
	"net"
	"time"

	"github.com/Z3NTL3/proxifier"
)

func main() {
	addr, err := proxifier.LookupHost("httpbin.org")
	if err != nil {
		log.Fatal(err)
	}

	target := proxifier.Context{
		Resolver: net.ParseIP(addr[0]),
		Port:     443,
	}

	proxy := proxifier.Context{
		Resolver: net.ParseIP("174.64.199.82"),
		Port:     4145,
	}

	client, err := proxifier.New(&proxifier.Socks4Client{},target, proxy)
	if err != nil {
		log.Fatal(err)
	}

	ctx, cancel := context.WithTimeout(context.Background(), time.Second*15)
	defer cancel()
	
	if err := proxifier.Connect(client, ctx); err != nil {
		log.Fatal(err)
	}

	defer client.Close()
	client.SetLinger(0)

	tlsConn := tls.Client(client, &tls.Config{
		InsecureSkipVerify: true,
	})

	if _, err := tlsConn.Write([]byte("GET /ip HTTP/1.1\r\nHost: httpbin.org\r\nConnection: close\r\n\r\n")); err != nil {
		log.Fatal(err)
	}

	data, err := io.ReadAll(tlsConn)
	if err != nil {
		log.Fatal(err)
	}

	log.Println(string(data))
}
/*
RESULT:

~\Documents\sockstests via 🐹 v1.22.2 took 6s
❯ go run .
2024/05/17 18:54:00 HTTP/1.1 200 OK
Date: Fri, 17 May 2024 16:54:00 GMT
Content-Type: application/json
Content-Length: 32
Connection: close
Server: gunicorn/19.9.0
Access-Control-Allow-Origin: *
Access-Control-Allow-Credentials: true

{
  "origin": "174.64.199.82"
}
*/