I'm using gorilla mux for routing in my http server
https://github.com/gorilla/mux
This is my code for disable directory listing
type justFilesFilesystem struct {
fs http.FileSystem
// readDirBatchSize - configuration parameter for Readdir func
readDirBatchSize int
}
func (fs justFilesFilesystem) Open(name string) (http.File, error) {
f, err := fs.fs.Open(name)
if err != nil {
return nil, err
}
return neuteredStatFile{File: f, readDirBatchSize: fs.readDirBatchSize}, nil
}
type neuteredStatFile struct {
http.File
readDirBatchSize int
}
func (e neuteredStatFile) Stat() (os.FileInfo, error) {
s, err := e.File.Stat()
if err != nil {
return nil, err
}
if s.IsDir() {
LOOP:
for {
fl, err := e.File.Readdir(e.readDirBatchSize)
switch err {
case io.EOF:
break LOOP
case nil:
for _, f := range fl {
if f.Name() == "" {
return s, err
}
}
default:
return nil, err
}
}
return nil, os.ErrNotExist
}
return s, err
}
and this is my main func
mux := mux.NewRouter()
// This line why not work?
mux.NotFoundHandler = http.HandlerFunc(NotFound)
mux.HandleFunc("/index",HandleIndex)
fs := justFilesFilesystem{fs: http.Dir("assets"), readDirBatchSize: 0}
staticFileHandler := http.StripPrefix("", http.FileServer(fs))
mux.PathPrefix("").Handler(staticFileHandler).Methods("GET")
and finally my 404 handle func
func NotFound(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, "404")
}
The question is how to handle custom 404 page error if file not found and also disable directory listing in the same time.
