maintenance/cleanupUploadStash.php

   1 <?php
   2 /**
   3  * Remove old or broken uploads from temporary uploaded file storage,
   4  * clean up associated database records
   5  *
   6  * Copyright © 2011, Wikimedia Foundation
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  * http://www.gnu.org/copyleft/gpl.html
  22  *
  23  * @file
  24  * @author Ian Baker <ibaker@wikimedia.org>
  25  * @ingroup Maintenance
  26  */
  27
  28 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  29
  30 class UploadStashCleanup extends Maintenance {
  31
  32         public function __construct() {
  33                 parent::__construct();
  34                 $this->mDescription = "Clean up abandoned files in temporary uploaded file stash";
  35         }
  36
  37         public function execute() {
  38                 $repo = RepoGroup::singleton()->getLocalRepo();
  39
  40                 $dbr = $repo->getSlaveDb();
  41
  42                 // how far back should this look for files to delete?
  43                 global $wgUploadStashMaxAge;
  44
  45                 $this->output( "Getting list of files to clean up...\n" );
  46                 $res = $dbr->select(
  47                         'uploadstash',
  48                         'us_key',
  49                         'us_timestamp < ' . $dbr->timestamp( time() - $wgUploadStashMaxAge ),
  50                         __METHOD__
  51                 );
  52
  53                 if( !is_object( $res ) || $res->numRows() == 0 ) {
  54                         $this->output( 'No files to cleanup!' );
  55                         // nothing to do.
  56                         return;
  57                 }
  58
  59                 // finish the read before starting writes.
  60                 $keys = array();
  61                 foreach($res as $row) {
  62                         array_push( $keys, $row->us_key );
  63                 }
  64
  65                 $this->output( 'Removing ' . count($keys) . " file(s)...\n" );
  66                 // this could be done some other, more direct/efficient way, but using
  67                 // UploadStash's own methods means it's less likely to fall accidentally
  68                 // out-of-date someday
  69                 $stash = new UploadStash( $repo );
  70
  71                 foreach( $keys as $key ) {
  72                         $stash->getFile( $key, true );
  73                         $stash->removeFileNoAuth( $key );
  74                 }
  75         }
  76 }
  77
  78 $maintClass = "UploadStashCleanup";
  79 require_once( RUN_MAINTENANCE_IF_MAIN );