68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
package http
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import (
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"net/http"
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"strings"
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"github.com/filebrowser/filebrowser/v2/files"
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)
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var withHashFile = func(fn handleFunc) handleFunc {
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return func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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link, err := d.store.Share.GetByHash(r.URL.Path)
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if err != nil {
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link, err = d.store.Share.GetByHash(ifPathWithName(r))
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if err != nil {
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return errToStatus(err), err
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}
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}
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user, err := d.store.Users.Get(d.server.Root, link.UserID)
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if err != nil {
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return errToStatus(err), err
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}
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d.user = user
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file, err := files.NewFileInfo(files.FileOptions{
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Fs: d.user.Fs,
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Path: link.Path,
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Modify: d.user.Perm.Modify,
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Expand: false,
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Checker: d,
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})
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if err != nil {
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return errToStatus(err), err
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}
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d.raw = file
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return fn(w, r, d)
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}
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}
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// ref to https://github.com/filebrowser/filebrowser/pull/727
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// `/api/public/dl/MEEuZK-v/file-name.txt` for old browsers to save file with correct name
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func ifPathWithName(r *http.Request) string {
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pathElements := strings.Split(r.URL.Path, "/")
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// prevent maliciously constructed parameters like `/api/public/dl/XZzCDnK2_not_exists_hash_name`
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// len(pathElements) will be 1, and golang will panic `runtime error: index out of range`
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if len(pathElements) < 2 { //nolint: mnd
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return r.URL.Path
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}
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id := pathElements[len(pathElements)-2]
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return id
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}
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var publicShareHandler = withHashFile(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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return renderJSON(w, r, d.raw)
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})
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var publicDlHandler = withHashFile(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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file := d.raw.(*files.FileInfo)
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if !file.IsDir {
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return rawFileHandler(w, r, file)
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}
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return rawDirHandler(w, r, d, file)
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})
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