maintenance/fetchText.php

   1 <?php
   2 /**
   3  * Communications protocol...
   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  * @ingroup Maintenance
  21  */
  22
  23 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  24
  25 class FetchText extends Maintenance {
  26         public function __construct() {
  27                 parent::__construct();
  28                 $this->mDescription = "Fetch the revision text from an old_id";
  29         }
  30
  31         public function execute() {
  32                 $db = wfGetDB( DB_SLAVE );
  33                 $stdin = $this->getStdin();
  34                 while ( !feof( $stdin ) ) {
  35                         $line = fgets( $stdin );
  36                         if ( $line === false ) {
  37                                 // We appear to have lost contact...
  38                                 break;
  39                         }
  40                         $textId = intval( $line );
  41                         $text = $this->doGetText( $db, $textId );
  42                         $this->output( strlen( $text ) . "\n" . $text );
  43                 }
  44         }
  45
  46         /**
  47          * May throw a database error if, say, the server dies during query.
  48          * @param $db Database object
  49          * @param $id int The old_id
  50          * @return String
  51          */
  52         private function doGetText( $db, $id ) {
  53                 $id = intval( $id );
  54                 $row = $db->selectRow( 'text',
  55                         array( 'old_text', 'old_flags' ),
  56                         array( 'old_id' => $id ),
  57                         'TextPassDumper::getText' );
  58                 $text = Revision::getRevisionText( $row );
  59                 if ( $text === false ) {
  60                         return false;
  61                 }
  62                 return $text;
  63         }
  64 }
  65
  66 $maintClass = "FetchText";
  67 require_once( DO_MAINTENANCE );