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   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;