Member RedChannelList (&$auth): Is there any reason why this is not inside RedDirectory class?
Member RedCollectionData ($file, &$auth): Is there any reason why this is not inside RedDirectory class? Seems only to be used there and we could simplify it a bit there.
Member RedDirectory::$ext_path: I think this is not used anywhere, we always strip '/cloud' and only use it in debug
Member RedDirectory::getDir (): add description of what this function does.
Member RedDirectory::setName ($name): handle duplicate directory name