The simpler media website CMS
When defining the album folder class option to "external" with the correct full path $conf['album_folder'], the zip file generated by printDownloadAlbumZipURL contains all the files structure but with 0 bytes. It looks like it cannot access to original files. Permissions are all OK (www-data + ).
I do not find any logs about this error.
Is it a bug or a feature request ;-) ? Any ideas?