maintenance/fetchText.php

   1 <?php
   2 /**
   3  * Communications protocol...
   4  *
   5  * @file
   6  * @ingroup Maintenance
   7  */
   8
   9 require_once( "Maintenance.php" );
  10
  11 class FetchText extends Maintenance {
  12         public function __construct() {
  13                 parent::__construct();
  14                 $this->mDescription = "Fetch the revision text from an old_id";
  15         }
  16
  17         public function execute() {
  18                 $db = wfGetDB( DB_SLAVE );
  19                 $stdin = $this->getStdin();
  20                 while( !feof( $stdin ) ) {
  21                         $line = fgets( $stdin );
  22                         if( $line === false ) {
  23                                 // We appear to have lost contact...
  24                                 break;
  25                         }
  26                         $textId = intval( $line );
  27                         $text = $this->doGetText( $db, $textId );
  28                         $this->output( strlen( $text ) . "\n". $text );
  29                 }
  30         }
  31
  32         /**
  33          * May throw a database error if, say, the server dies during query.
  34          * @param $db Database object
  35          * @param $id int The old_id
  36          * @return String
  37          */
  38         private function doGetText( $db, $id ) {
  39                 $id = intval( $id );
  40                 $row = $db->selectRow( 'text',
  41                         array( 'old_text', 'old_flags' ),
  42                         array( 'old_id' => $id ),
  43                         'TextPassDumper::getText' );
  44                 $text = Revision::getRevisionText( $row );
  45                 if( $text === false ) {
  46                         return false;
  47                 }
  48                 return $text;
  49         }
  50 }
  51
  52 $maintClass = "FetchText";
  53 require_once( DO_MAINTENANCE );