cleaner.php

<?php
$maxAge=-1;// max age in seconds, scans older that this will be deleted; negative values disable cleaning
if(isset($_GET['file'])){
	if(is_numeric(strrpos($_GET['file'], "/")))
		$_GET['file']=substr($_GET['file'],strrpos($_GET['file'],"/")+1);
	$file=$_GET['file'];
	$file0=substr($file,0,strrpos($file,"."));
	echo '{"state":'.((@unlink("scans/thumb/Preview_$file0.jpg")&&@unlink("scans/file/Scan_$file"))?0:1).',"file":"'.$file.'"}';
}
else if($maxAge>-1){
	echo "<pre>\n";
	$loc=$_SERVER['DOCUMENT_ROOT'].str_replace('cleaner.php','scans/file',$_SERVER['SCRIPT_NAME']);
	$lst=scandir($loc);
	for($i=2,$max=count($lst);$i<$max;$i++){
		if($lst[$i]!='.'&&$lst[$i]!='..'){
			if(time()-filemtime("$loc/".$lst[$i])>$maxAge){
				//copy("$loc/".$lst[$i], '/path/to/archive/');// www-data require write acceess to the archive
				if(@unlink("$loc/".$lst[$i]))
					echo "Removed: $loc/".$lst[$i]."\n";
				$lst[$i]='Preview_'.substr($lst[$i],5,strrpos($lst[$i],'.')-5).'.jpg';
				if(@unlink("$loc/../thumb/".$lst[$i]))
					echo "Removed: $loc/../thumb/".$lst[$i]."\n";
			}
		}
	}
	echo "</pre>";
}
?>