main.go

package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"net/http/fcgi"
	"os"
)

var (
	noupload = false
	user     string
	password string
	auth     string
	dir      = "."
	mode     = "http"
	index    string
	// VERSION application version
	VERSION string
)

func main() {
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
		flag.PrintDefaults()
	}
	address := flag.String("addr", "0.0.0.0:4000", "listen on this address")
	flag.BoolVar(&noupload, "noupload", noupload, "enable or disable uploads")
	flag.StringVar(&user, "user", user, "user for HTTP Basic authentication (-auth needs to be set)")
	flag.StringVar(&password, "password", password, "password for HTTP Basic authentication (-auth needs to be set)")
	flag.StringVar(&auth, "auth", auth, "comma-separated list of what will be protected by HTTP Basic authentication (index,download,upload)")
	flag.StringVar(&dir, "dir", dir, "directory for storing and serving files")
	flag.StringVar(&mode, "mode", mode, "run either standalone (http) or as FCGI application (fcgi)")
	flag.StringVar(&index, "index", index, "serve this file if it exists in the current directory instead of a listing")
	verbose := flag.Bool("v", false, "verbose output (no output at all by default)")
	version := flag.Bool("version", false, "show version and exit")
	flag.Parse()

	if *version {
		fmt.Println(VERSION)
		return
	}

	log.SetOutput(ioutil.Discard)
	if *verbose {
		log.SetOutput(os.Stdout)
		flag.VisitAll(func(f *flag.Flag) {
			log.Printf("SETTINGS: %s = %s", f.Name, f.Value)
		})
	}

	http.HandleFunc("/", handler)

	switch mode {
	case "http":
		log.Fatal(http.ListenAndServe(*address, nil))
	case "fcgi":
		log.Fatal(fcgi.Serve(nil, nil))
	default:
		log.Fatalf("Unknown mode '%s'!", mode)
	}
}