cdn2proxy

README

go-cdn2proxy

Proxy your traffic through content delivery network (CDN) using WebSocket

What does it do?

• Use this as a library in your project : go get -v -u github.com/jm33-m0/go-cdn2proxy
• It forwards your traffic through WebSocket, which can be implemented behind most CDNs
• Anything that supports SOCKS5 proxy can use go-cdn2proxy

I wrote this for emp3r0r

Example

Server

package main

import (
    "log"

    cdn2proxy "github.com/jm33-m0/go-cdn2proxy"
)

func main() {
    err := cdn2proxy.StartServer("9000", "127.0.0.1:8000", "ws", os.Stderr)
    // `ws` is the path to your websocket server
    if err != nil {
        log.Fatal(err)
    }
}

Client

package main

import (
    "log"

    cdn2proxy "github.com/jm33-m0/go-cdn2proxy"
)

func main() {
    err := cdn2proxy.StartProxy("127.0.0.1:10888", "wss://example.com/ws", "socks5://127.0.0.1:1080", "https://9.9.9.9/dns-query")
    // here `/ws` must match the one set in `StartServer`
    if err != nil {
        log.Fatal(err)
    }
}

Many thanks to

Minimal SOCKS5 Proxy Omplementation in Golang

Documentation

Index

• Variables
• func Socks5Auth(client net.Conn) (err error)
• func StartProxy(addr, wsurl, proxy, doh string) error
• func StartServer(port, destAddr, wspath string, logOutput io.Writer) (err error)

Variables

var (
	DestAddr = "127.0.0.1:8000"
)

var Logger = log.New(os.Stderr, "cdn2proxy: ", log.Ldate|log.Ltime|log.Lmicroseconds|log.Lshortfile)

use this logger

Functions

func Socks5Auth

func Socks5Auth(client net.Conn) (err error)

func StartProxy

func StartProxy(addr, wsurl, proxy, doh string) error

StartProxy on client side, start a socks5 proxy url: websocket server. eg: wss://example.com/path/to/ws use wss instead of ws since your reverse proxy (nginx, Cloudflare) should be using TLS addr: local proxy address, used as agent's outgoing proxy proxy: proxy for websocket connection, if you cannot directly connect to ws server, use this eg. socks5://127.0.0.1:1080 doh: DNS over HTTPS server, eg. https://9.9.9.9/dns-query, prevent DNS leaks

func StartServer

func StartServer(port, destAddr, wspath string, logOutput io.Writer) (err error)

StartServer start websocket server port: listen on 127.0.0.1:port destAddr: send everything here, we only want a single purpose proxy wspath: access this path to reach ws service, eg. /ws if you use go-cdn2proxy along with other HTTP server, prevent multiple `/`