maintenance/checkUsernames.php

   1 <?php
   2 /**
   3  * Check that database usernames are actually valid.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Maintenance
  22  */
  23
  24 require_once __DIR__ . '/Maintenance.php';
  25
  26 /**
  27  * Maintenance script to check that database usernames are actually valid.
  28  *
  29  * An existing usernames can become invalid if User::isValidUserName()
  30  * is altered or if we change the $wgMaxNameChars
  31  *
  32  * @ingroup Maintenance
  33  */
  34 class CheckUsernames extends Maintenance {
  35
  36         public function __construct() {
  37                 parent::__construct();
  38                 $this->mDescription = "Verify that database usernames are actually valid";
  39                 $this->setBatchSize( 1000 );
  40         }
  41
  42         function execute() {
  43                 $dbr = wfGetDB( DB_SLAVE );
  44
  45                 $maxUserId = 0;
  46                 do {
  47                         $res = $dbr->select( 'user',
  48                                 array( 'user_id', 'user_name' ),
  49                                 array( 'user_id > ' . $maxUserId ),
  50                                 __METHOD__,
  51                                 array(
  52                                         'ORDER BY' => 'user_id',
  53                                         'LIMIT' => $this->mBatchSize,
  54                                 )
  55                         );
  56
  57                         foreach ( $res as $row ) {
  58                                 if ( !User::isValidUserName( $row->user_name ) ) {
  59                                         $this->error( sprintf( "%s: %6d: '%s'\n", wfWikiID(), $row->user_id, $row->user_name ) );
  60                                         wfDebugLog( 'checkUsernames', $row->user_name );
  61                                 }
  62                         }
  63                         $maxUserId = $row->user_id;
  64                 } while ( $res->numRows() );
  65         }
  66 }
  67
  68 $maintClass = "CheckUsernames";
  69 require_once RUN_MAINTENANCE_IF_MAIN;