goserve.go

// Copyright (C) 2018 Robert A. Wallis, All Rights Reserved

// goserve is a very simple localhost:8000 static file server, for developing static sites.
//
// Usage: run `goserve` in a folder.  It's files will be available at http://localhost:8000/
package main

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

var g_bind = flag.String("bind", "localhost:8000", "server binding")
var g_corp = flag.String("corp", "same-site", "Cross-Origin-Resource-Policy \"same-site\" | \"cross-origin\"")

func main() {
	flag.Parse()
	var fileServer = http.FileServer(http.Dir("."))
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		log.Println(r.Method, r.RequestURI, r.RemoteAddr)
		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
		w.Header().Set("Cross-Origin-Resource-Policy", *g_corp)
		w.Header().Set("Cross-Origin-Opener-Policy", "same-origin")
		w.Header().Set("Cross-Origin-Embedder-Policy", "require-corp")
		fileServer.ServeHTTP(w, r)
	})
        fmt.Printf("Listening at http://%s\n", *g_bind)
	log.Fatal(http.ListenAndServe(*g_bind, nil))
}