moodle/lib/classes/task/file_temp_cleanup_task.php
Rod Norfor 75b70ab6cd MDL-45654 cron: fix non-empty directories deletion
Remove errors when attempting to delete non-empty directories when
child directories do not get removed since the mtime was updated when
files were removed from the child directory.
2014-05-21 17:15:30 +01:00

81 lines
2.6 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* A scheduled task.
*
* @package core
* @copyright 2013 onwards Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\task;
/**
* Simple task to delete temp files older than 1 week.
*/
class file_temp_cleanup_task extends scheduled_task {
/**
* Get a descriptive name for this task (shown to admins).
*
* @return string
*/
public function get_name() {
return get_string('tasktempfilecleanup', 'admin');
}
/**
* Do the job.
* Throw exceptions on errors (the job will be retried).
*/
public function execute() {
global $CFG;
$tmpdir = $CFG->tempdir;
// Default to last weeks time.
$time = strtotime('-1 week');
$dir = new \RecursiveDirectoryIterator($tmpdir);
// Show all child nodes prior to their parent.
$iter = new \RecursiveIteratorIterator($dir, \RecursiveIteratorIterator::CHILD_FIRST);
for ($iter->rewind(); $iter->valid(); $iter->next()) {
$node = $iter->getRealPath();
if (!is_readable($node)) {
continue;
}
// Check if file or directory is older than the given time.
if ($iter->getMTime() < $time) {
if ($iter->isDir() && !$iter->isDot()) {
// Don't attempt to delete the directory if it isn't empty.
if (!glob($node. DIRECTORY_SEPARATOR . '*')) {
if (@rmdir($node) === false) {
mtrace("Failed removing directory '$node'.");
}
}
}
if ($iter->isFile()) {
if (@unlink($node) === false) {
mtrace("Failed removing file '$node'.");
}
}
}
}
}
}