55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
package web
|
|
|
|
import (
|
|
"io"
|
|
"net/http"
|
|
"os"
|
|
)
|
|
|
|
// Credit: https://stackoverflow.com/questions/49589685/good-way-to-disable-directory-listing-with-http-fileserver-in-go
|
|
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() == "index.html" {
|
|
return s, err
|
|
}
|
|
}
|
|
default:
|
|
return nil, err
|
|
}
|
|
}
|
|
return nil, os.ErrNotExist
|
|
}
|
|
return s, err
|
|
}
|