46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
// Copyright 2017 Manu Martinez-Almeida. All rights reserved.
|
|
// Use of this source code is governed by a MIT style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package gin
|
|
|
|
import (
|
|
"net/http"
|
|
"os"
|
|
)
|
|
|
|
type onlyFilesFS struct {
|
|
fs http.FileSystem
|
|
}
|
|
|
|
type neuteredReaddirFile struct {
|
|
http.File
|
|
}
|
|
|
|
// Dir returns a http.FileSystem that can be used by http.FileServer(). It is used internally
|
|
// in router.Static().
|
|
// if listDirectory == true, then it works the same as http.Dir() otherwise it returns
|
|
// a filesystem that prevents http.FileServer() to list the directory files.
|
|
func Dir(root string, listDirectory bool) http.FileSystem {
|
|
fs := http.Dir(root)
|
|
if listDirectory {
|
|
return fs
|
|
}
|
|
return &onlyFilesFS{fs}
|
|
}
|
|
|
|
// Open conforms to http.Filesystem.
|
|
func (fs onlyFilesFS) Open(name string) (http.File, error) {
|
|
f, err := fs.fs.Open(name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return neuteredReaddirFile{f}, nil
|
|
}
|
|
|
|
// Readdir overrides the http.File default implementation.
|
|
func (f neuteredReaddirFile) Readdir(_ int) ([]os.FileInfo, error) {
|
|
// this disables directory listing
|
|
return nil, nil
|
|
}
|