Resize error [php:ERROR_PERM_DENIED] using FTP driver

[zzplab]

I'm using elFinder [2.1.29] with elFinderVolumeFTP.class. Viewing, uploading, deleting, moving, everything works ok. Except...
Except resize/crop/rotate: I get an error I can relate back to PHP > ERROR_PERM_DENIED in elFinder.class.
Is that a bug? Is resize not possible with FTP driver? Or error in my setup?
How to solve?
FTP is connecting to other accounts on the same server, example:
/account_dir/...
The .tmb images are kept 'locally' in the account where elFinder is active, example:
/elfinder/...

My setup > html/js:

<script type="text/javascript" charset="utf-8">
function getUrlParam(paramName) {
  var reParam = new RegExp('(?:[\?&]|&amp;)' + paramName + '=([^&]+)', 'i') ;
  var match = window.location.search.match(reParam) ;
  return (match && match.length > 1) ? match[1] : '' ;
}
   
$(function() {
var funcNum = getUrlParam('CKEditorFuncNum');
	var elf = $('#elfinder').elfinder({
	lang: 'nl',
	url : 'connector/images.php',
	height : "94%",
	validName: '/^[^\s]$/',
	onlyMimes: [
							'image/bmp'
							,'image/png'
							,'image/gif'
							,'image/jpeg'
							, 'image/svg+xml'
							],
	commands : [
'open', 'reload', 'home', 'up', 'back', 'forward', 'getfile', 'quicklook', 
'download', 'rm', 'duplicate', 'rename', 'mkdir', 'upload', 'copy',
'cut', 'paste', 'search', 'info', 'view',
'resize', 'sort'
],
	uiOptions : {
		toolbar : [
			['back', 'forward', 'up', 'home'],
			['mkdir'],
			['reload', 'sort', 'view'],
			['rm'],
			['copy', 'cut', 'paste'],
			['duplicate'],
			['open', 'download'],
			['getfile'],
			['info', 'quicklook'],
			['upload', 'rename', 'resize'],
			['search']
		],
		tree : {
			openRootOnLoad : true,
			syncTree : true
		},
		navbar : {
			minWidth : 120,
			maxWidth : 320
		}
	},
	loadTmbs : 160,
	showFiles: 480,
	requestMaxConn: 64,
	getFileCallback : function(file) {
	  window.opener.CKEDITOR.tools.callFunction(funcNum, file.url);
	  window.close();
	}
	}).elfinder('instance');
});
</script>

PHP>

require '/..PATH../elfinder/vendor/studio-42/elfinder/php/autoload.php';
elFinder::$netDrivers['ftp'] = 'FTP';

function access($attr, $path, $data, $volume) {
	return strpos(basename($path), '.') === 0
		? !($attr == 'read' || $attr == 'write')
		:  null; 
}

$elf_dir = 'account_dir';
define('t_root', '/..root_pathto.../elfinder/.tmb/'.$elf_dir);
define('t_url', 'https://example.com/elfinder/.tmb/'.$elf_dir);

if(!is_dir(t_root))
{
	mkdir(t_root);
}

$opts = array(
	'bind' => array(
		'mkdir.pre mkfile.pre rename.pre archive.pre' => array(
			'Plugin.Sanitizer.cmdPreprocess',
			'Plugin.Normalizer.cmdPreprocess'
		),
		'upload.presave' => array(
			'Plugin.Sanitizer.onUpLoadPreSave',
			'Plugin.Normalizer.onUpLoadPreSave',
			'Plugin.AutoResize.onUpLoadPreSave'
		)
	),
	'plugin' => array(
		'Sanitizer' => array(
			'enable' => true,
			'targets'  => array('\\','/',':','*','?','"','<','>','|','\'','@','#','$','(',')',',',';','_','%','&','^','=',' ','!','--'),
			'replace'  => '-'
		),
		'Normalizer' => array(
			'enable' 		=> true,
			'nfc'   		=> false,
			'nfkc'			=> false,
			'lowercase' => true
		),
		'AutoResize' => array(
			'enable'         => true,
			'maxWidth'       => 1600,
			'maxHeight'      => 1200,
			'quality'        => 95,
			'preserveExif'   => false,
			'targetType'     => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP
		)
	),

	'roots' => array(

		array(
	    'driver'        => 'FTP',
	    'host'          => 'localhost',
	    'user'          => $user,
	    'pass'          => $pass,
	    'port'          => 21,
	    'mode'          => 'passive',
	    'path'          => '/..pathto../images',
	    'URL'           => $uploadURL.'/images/',
			'tmbPath'     	=> t_root,
			'tmbURL'       	=> t_url,
			'tmpPath'       => t_root,
	    'alias'     		=> 'Afbeeldingen',
	    'owner'         => true,
	    'uploadAllow'   => array(
													'image/bmp'
													, 'image/png'
													, 'image/gif'
													, 'image/jpeg'
													, 'image/svg+xml'
													),
			'uploadDeny'    => array('all'),
			'uploadOrder'   => 'deny,allow',
			'uploadMaxSize' => '5M',
			'checkSubfolders' => -1,
			'locale' => 'nl_NL.utf8',
			'uploadMaxConn' => 8,
			'autoload' => true,
	    'accessControl' => 'access'
		),
	)
);

$connector = new elFinderConnector(new elFinder($opts));
$connector->run();

[zzplab]

[nao-pon]

@zzplab Is there same problem with the nightly build?

[zzplab]

Thanks :-) That works fine as expected, problem solved. Is the nightly build as it is now safe to use in production? When is next release date?

Other question:
In elFinderVolumeFTP.class.php I always need FTP + SSL on my server. I manually change ftp_connect to ftp_ssl_connect after updates. Is a pull request a good idea to add the option for SSL in the elFinder source?

[nao-pon]

2.1.30 release is scheduled for around the end of this month from a few days later. Adding the ftp_ssl_connect option is a good idea! Please send PR.

[zzplab]

2.1.30 > great. I'll stick to the nightly for now.
SSL ok.

[zzplab]

Thanks for the merge #2289