akramsaouri/file-server.go

## file-server.go
package main

import (
	"html/template"
	"log"
	"net/http"
	"os"
	"path/filepath"
)

const tpl = `
<html>
	<head>
	<title> file server </title>
	</head>
	<body>
		<ul>
		{{range .}}
			<li> <a href="{{ . }}"> {{ . }} </a> </li>
		{{end}}
		</ul>
	</body>
</html>
`

func main() {
	sm := http.NewServeMux()
	t, err := template.New("root").Parse(tpl)
	if err != nil {
		log.Fatal(err)
	}
	err = filepath.Walk(".", func(p string, fi os.FileInfo, err error) error {
		pattern := "/"
		if p != "." {
			pattern = pattern + p
		}
		if fi.IsDir() {
			file, err := os.Open(p)
			if err != nil {
				return err
			}
			defer file.Close()
			names, err := file.Readdirnames(-1)
			if err != nil {
				return err
			}
			var hasIndex bool
			files := make([]string, len(names))
			for i, n := range names {
				if n == "index.html" {
					hasIndex = true
				}
				if p != "." {
					files[i] = p + "/" + n
				} else {
					files[i] = n
				}
			}
			if hasIndex {
				sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
					http.ServeFile(res, req, p)
				})
			} else {
				sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
					err = t.Execute(res, files)
					if err != nil {
						log.Fatal(err)
					}
				})
			}
		} else {
			sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
				http.ServeFile(res, req, p)
			})
		}
		return nil
	})
	if err != nil {
		log.Fatal(err)
	}
	http.ListenAndServe(":9000", sm)
}
	package main

	import (
	"html/template"
	"log"
	"net/http"
	"os"
	"path/filepath"
	)

	const tpl = `
	<html>
	<head>
	<title> file server </title>
	</head>
	<body>
	<ul>
	{{range .}}
	<li> <a href="{{ . }}"> {{ . }} </a> </li>
	{{end}}
	</ul>
	</body>
	</html>
	`

	func main() {
	sm := http.NewServeMux()
	t, err := template.New("root").Parse(tpl)
	if err != nil {
	log.Fatal(err)
	}
	err = filepath.Walk(".", func(p string, fi os.FileInfo, err error) error {
	pattern := "/"
	if p != "." {
	pattern = pattern + p
	}
	if fi.IsDir() {
	file, err := os.Open(p)
	if err != nil {
	return err
	}
	defer file.Close()
	names, err := file.Readdirnames(-1)
	if err != nil {
	return err
	}
	var hasIndex bool
	files := make([]string, len(names))
	for i, n := range names {
	if n == "index.html" {
	hasIndex = true
	}
	if p != "." {
	files[i] = p + "/" + n
	} else {
	files[i] = n
	}
	}
	if hasIndex {
	sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
	http.ServeFile(res, req, p)
	})
	} else {
	sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
	err = t.Execute(res, files)
	if err != nil {
	log.Fatal(err)
	}
	})
	}
	} else {
	sm.HandleFunc(pattern, func(res http.ResponseWriter, req *http.Request) {
	http.ServeFile(res, req, p)
	})
	}
	return nil
	})
	if err != nil {
	log.Fatal(err)
	}
	http.ListenAndServe(":9000", sm)
	}