socks5 搭建代理服务

1.项目地址

GitHub - oov/socks5: This is an implementation of the SOCKS v5 server in the Go programming language.

2.安装go环境

3.go换源

go env -w GO111MODULE=auto
go env -w GOPROXY=https://goproxy.cn,direct

4.安装依赖、socks5包

go get -u github.com/oov/socks5

5.运行以下代码

go run main.go

package main

import (
	"github.com/oov/socks5"
	"log"
)

func main() {
	srv := socks5.New()
	srv.AuthUsernamePasswordCallback = func(c *socks5.Conn, username, password []byte) error {
		/*账号密码验证*/
		user := string(username)
		passwd := string(password)
		if !((user == "guest" && passwd == "test1234") || (user == "root" && passwd == "test1234")) {
			return socks5.ErrAuthenticationFailed
		}

		log.Printf("Welcome %v!", user)
		c.Data = user
		return nil
	}

	/*代理黑名单*/
	srv.HandleConnectFunc(func(c *socks5.Conn, host string) (newHost string, err error) {
		if host == "example.com:80" {
			return host, socks5.ErrConnectionNotAllowedByRuleset
		}
		if user, ok := c.Data.(string); ok {
			log.Printf("%v connecting to %v", user, host)
		}
		return host, nil
	})
	srv.HandleCloseFunc(func(c *socks5.Conn) {
		if user, ok := c.Data.(string); ok {
			log.Printf("Goodbye %v!", user)
		}
	})

	/*监听8070端口*/
	srv.ListenAndServe(":8070")
}

6.测试代理

7.编译成独立的可执行程序

go build main.go