fix regression in webdav file removal logic (#162)

pkg/webdav/handler.go

@@ -101,13 +101,18 @@ func (h *Handler) RemoveAll(ctx context.Context, name string) error {
 	if len(parts) >= 2 {
 		if utils.Contains(h.getParentItems(), parts[0]) {
 			torrentName := parts[1]
-			filename := filepath.Clean(path.Join(parts[2:]...))
-			if err := h.cache.RemoveFile(torrentName, filename); err != nil {
-				h.logger.Error().Err(err).Msgf("Failed to remove file %s from torrent %s", filename, torrentName)
-				return err
+			cached := h.cache.GetTorrentByName(torrentName)
+			if cached != nil && len(parts) >= 3 {
+				filename := filepath.Clean(path.Join(parts[2:]...))
+				if file, ok := cached.GetFile(filename); ok {
+					if err := h.cache.RemoveFile(cached.Id, file.Name); err != nil {
+						h.logger.Error().Err(err).Msgf("Failed to remove file %s from torrent %s", file.Name, torrentName)
+						return err
+					}
+					// If the file was successfully removed, we can return nil
+					return nil
+				}
 			}
-			// If the file was successfully removed, we can return nil
-			return nil
 		}
 	}