diff --git a/http/resource.go b/http/resource.go
index 1b4e180e..12ba126f 100644
--- a/http/resource.go
+++ b/http/resource.go
@@ -195,7 +195,9 @@ func resourcePatchHandler(fileCache FileCache) handleFunc {
 		if dst == "/" || src == "/" {
 			return http.StatusForbidden, nil
 		}
-		if err = checkParent(src, dst); err != nil {
+
+		err = checkParent(src, dst)
+		if err != nil {
 			return http.StatusBadRequest, err
 		}
 
@@ -215,44 +217,8 @@ func resourcePatchHandler(fileCache FileCache) handleFunc {
 			return http.StatusForbidden, nil
 		}
 
-		file, err := files.NewFileInfo(files.FileOptions{
-			Fs:         d.user.Fs,
-			Path:       r.URL.Path,
-			Modify:     d.user.Perm.Modify,
-			Expand:     false,
-			ReadHeader: d.server.TypeDetectionByHeader,
-			Checker:    d,
-		})
-		if err != nil {
-			return errToStatus(err), err
-		}
-
 		err = d.RunHook(func() error {
-			switch action {
-			// TODO: use enum
-			case "copy":
-				if !d.user.Perm.Create {
-					return errors.ErrPermissionDenied
-				}
-
-				return fileutils.Copy(d.user.Fs, src, dst)
-			case "rename":
-				if !d.user.Perm.Rename {
-					return errors.ErrPermissionDenied
-				}
-				src = path.Clean("/" + src)
-				dst = path.Clean("/" + dst)
-
-				// delete thumbnails
-				err = delThumbs(r.Context(), fileCache, file)
-				if err != nil {
-					return err
-				}
-
-				return fileutils.MoveFile(d.user.Fs, src, dst)
-			default:
-				return fmt.Errorf("unsupported action %s: %w", action, errors.ErrInvalidRequestParams)
-			}
+			return patchAction(r.Context(), action, src, dst, d, fileCache)
 		}, action, src, dst, d.user)
 
 		return errToStatus(err), err
@@ -328,3 +294,43 @@ func delThumbs(ctx context.Context, fileCache FileCache, file *files.FileInfo) e
 
 	return nil
 }
+
+func patchAction(ctx context.Context, action, src, dst string, d *data, fileCache FileCache) error {
+	switch action {
+	// TODO: use enum
+	case "copy":
+		if !d.user.Perm.Create {
+			return errors.ErrPermissionDenied
+		}
+
+		return fileutils.Copy(d.user.Fs, src, dst)
+	case "rename":
+		if !d.user.Perm.Rename {
+			return errors.ErrPermissionDenied
+		}
+		src = path.Clean("/" + src)
+		dst = path.Clean("/" + dst)
+
+		file, err := files.NewFileInfo(files.FileOptions{
+			Fs:         d.user.Fs,
+			Path:       src,
+			Modify:     d.user.Perm.Modify,
+			Expand:     false,
+			ReadHeader: false,
+			Checker:    d,
+		})
+		if err != nil {
+			return err
+		}
+
+		// delete thumbnails
+		err = delThumbs(ctx, fileCache, file)
+		if err != nil {
+			return err
+		}
+
+		return fileutils.MoveFile(d.user.Fs, src, dst)
+	default:
+		return fmt.Errorf("unsupported action %s: %w", action, errors.ErrInvalidRequestParams)
+	}
+}