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// 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(count int) ([]os.FileInfo, error) {
// this disables directory listing
return nil, nil
}
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