1: <?php
 2: /**
 3:  * Login system task for performing periodical garbage collection.
 4:  *
 5:  * Copyright 2009-2012 Horde LLC (http://www.horde.org/)
 6:  *
 7:  * See the enclosed file COPYING for license information (GPL). If you
 8:  * did not receive this file, see http://www.horde.org/licenses/gpl.
 9:  *
10:  * @author   Michael Slusarz <slusarz@horde.org>
11:  * @category Horde
12:  * @license  http://www.horde.org/licenses/gpl GPL
13:  * @package  IMP
14:  */
15: class IMP_LoginTasks_SystemTask_GarbageCollection extends Horde_LoginTasks_SystemTask
16: {
17:     /**
18:      * The interval at which to run the task.
19:      *
20:      * @var integer
21:      */
22:     public $interval = Horde_LoginTasks::WEEKLY;
23: 
24:     /**
25:      * Perform all functions for this task.
26:      */
27:     public function execute()
28:     {
29:         /* Purge non-existent nav_poll entries. */
30:         $GLOBALS['injector']->getInstance('IMP_Imap_Tree')->prunePollList();
31: 
32:         /* Do garbage collection on sentmail entries. */
33:         $GLOBALS['injector']->getInstance('IMP_Sentmail')->gc();
34: 
35:         /* Do garbage collection on compose VFS data. */
36:         if ($GLOBALS['conf']['compose']['use_vfs']) {
37:             try {
38:                 $vfs = $GLOBALS['injector']->getInstance('Horde_Core_Factory_Vfs')->create();
39:                 Horde_Vfs_Gc::gc($vfs, IMP_Compose::VFS_ATTACH_PATH, 86400);
40:             } catch (Horde_Vfs_Exception $e) {}
41:         }
42: 
43:         /* Purge non-existent search sorts. */
44:         $imp_search = $GLOBALS['injector']->getInstance('IMP_Search');
45:         $update = false;
46:         $sortpref = @unserialize($GLOBALS['prefs']->getValue('sortpref'));
47: 
48:         foreach (array_keys($sortpref) as $key) {
49:             if ($imp_search->isSearchMbox($key) && !$imp_search[$key]) {
50:                 unset($sortpref[$key]);
51:                 $update = true;
52:             }
53:         }
54: 
55:         if ($update) {
56:             $GLOBALS['prefs']->setValue('sortpref', serialize($sortpref));
57:         }
58:     }
59: 
60: }
61: