weekly release 2.9dev
[moodle.git] / lib / classes / task / file_temp_cleanup_task.php
CommitLineData
309ae892
DW
1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * A scheduled task.
19 *
20 * @package core
21 * @copyright 2013 onwards Martin Dougiamas http://dougiamas.com
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24namespace core\task;
25
26/**
27 * Simple task to delete temp files older than 1 week.
28 */
29class file_temp_cleanup_task extends scheduled_task {
30
31 /**
32 * Get a descriptive name for this task (shown to admins).
33 *
34 * @return string
35 */
36 public function get_name() {
37 return get_string('tasktempfilecleanup', 'admin');
38 }
39
40 /**
41 * Do the job.
42 * Throw exceptions on errors (the job will be retried).
43 */
44 public function execute() {
45 global $CFG;
46
47 $tmpdir = $CFG->tempdir;
48 // Default to last weeks time.
49 $time = strtotime('-1 week');
50
51 $dir = new \RecursiveDirectoryIterator($tmpdir);
52 // Show all child nodes prior to their parent.
53 $iter = new \RecursiveIteratorIterator($dir, \RecursiveIteratorIterator::CHILD_FIRST);
54
55 for ($iter->rewind(); $iter->valid(); $iter->next()) {
56 $node = $iter->getRealPath();
57 if (!is_readable($node)) {
58 continue;
59 }
60 // Check if file or directory is older than the given time.
61 if ($iter->getMTime() < $time) {
62 if ($iter->isDir() && !$iter->isDot()) {
75b70ab6
RN
63 // Don't attempt to delete the directory if it isn't empty.
64 if (!glob($node. DIRECTORY_SEPARATOR . '*')) {
65 if (@rmdir($node) === false) {
66 mtrace("Failed removing directory '$node'.");
67 }
309ae892
DW
68 }
69 }
70 if ($iter->isFile()) {
71 if (@unlink($node) === false) {
72 mtrace("Failed removing file '$node'.");
73 }
74 }
75 }
76 }
77
78 }
79
80}