Golang 实现的 Let’s Encrypt 验证响应handler

简单的web 服务，响应Let’s Encrypt 域名所有者验证，不用 nginx 大器

package main

import (
	"flag"
	"log"
	"net/http"
)

func main() {
	var dir = flag.String("dir", ".", "folder")
	var port = flag.String("p", "80", "port")

	flag.Parse()

	log.Println("dir : ", *dir)
	log.Println("port : ", *port)

	staticHandler := http.StripPrefix("/.well-known/acme-challenge/", http.FileServer(http.Dir(*dir)))
	http.Handle("/.well-known/acme-challenge/", staticHandler)
	srv := &http.Server{Addr: ":" + *port}

	log.Fatal(srv.ListenAndServe())
}