maintenance/purgeList.php

   1 <?php
   2 /**
   3  * Send purge requests for listed pages to squid
   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 that sends purge requests for listed pages to squid.
  28  *
  29  * @ingroup Maintenance
  30  */
  31 class PurgeList extends Maintenance {
  32         public function __construct() {
  33                 parent::__construct();
  34                 $this->mDescription = "Send purge requests for listed pages to squid";
  35                 $this->addOption( 'purge', 'Whether to update page_touched.', false, false );
  36                 $this->addOption( 'namespace', 'Namespace number', false, true );
  37                 $this->addOption( 'all', 'Purge all pages', false, false );
  38                 $this->addOption( 'delay', 'Number of seconds to delay between each purge', false, true );
  39                 $this->addOption( 'verbose', 'Show more output', false, false, 'v' );
  40                 $this->setBatchSize( 100 );
  41         }
  42
  43         public function execute() {
  44                 if ( $this->hasOption( 'all' ) ) {
  45                         $this->purgeNamespace( false );
  46                 } elseif ( $this->hasOption( 'namespace' ) ) {
  47                         $this->purgeNamespace( intval( $this->getOption( 'namespace' ) ) );
  48                 } else {
  49                         $this->doPurge();
  50                 }
  51                 $this->output( "Done!\n" );
  52         }
  53
  54         /**
  55          * Purge URL coming from stdin
  56          */
  57         private function doPurge() {
  58                 $stdin = $this->getStdin();
  59                 $urls = array();
  60
  61                 while ( !feof( $stdin ) ) {
  62                         $page = trim( fgets( $stdin ) );
  63                         if ( preg_match( '%^https?://%', $page ) ) {
  64                                 $urls[] = $page;
  65                         } elseif ( $page !== '' ) {
  66                                 $title = Title::newFromText( $page );
  67                                 if ( $title ) {
  68                                         $url = $title->getInternalURL();
  69                                         $this->output( "$url\n" );
  70                                         $urls[] = $url;
  71                                         if ( $this->getOption( 'purge' ) ) {
  72                                                 $title->invalidateCache();
  73                                         }
  74                                 } else {
  75                                         $this->output( "(Invalid title '$page')\n" );
  76                                 }
  77                         }
  78                 }
  79                 $this->output( "Purging " . count( $urls ) . " urls\n" );
  80                 $this->sendPurgeRequest( $urls );
  81         }
  82
  83         /**
  84          * Purge a namespace or all pages
  85          *
  86          * @param int|bool $namespace
  87          */
  88         private function purgeNamespace( $namespace = false ) {
  89                 $dbr = wfGetDB( DB_SLAVE );
  90                 $startId = 0;
  91                 if ( $namespace === false ) {
  92                         $conds = array();
  93                 } else {
  94                         $conds = array( 'page_namespace' => $namespace );
  95                 }
  96                 while ( true ) {
  97                         $res = $dbr->select( 'page',
  98                                 array( 'page_id', 'page_namespace', 'page_title' ),
  99                                 $conds + array( 'page_id > ' . $dbr->addQuotes( $startId ) ),
 100                                 __METHOD__,
 101                                 array(
 102                                         'LIMIT' => $this->mBatchSize,
 103                                         'ORDER BY' => 'page_id'
 104
 105                                 )
 106                         );
 107                         if ( !$res->numRows() ) {
 108                                 break;
 109                         }
 110                         $urls = array();
 111                         foreach ( $res as $row ) {
 112                                 $title = Title::makeTitle( $row->page_namespace, $row->page_title );
 113                                 $url = $title->getInternalURL();
 114                                 $urls[] = $url;
 115                                 $startId = $row->page_id;
 116                         }
 117                         $this->sendPurgeRequest( $urls );
 118                 }
 119         }
 120
 121         /**
 122          * Helper to purge an array of $urls
 123          * @param array $urls List of URLS to purge from squids
 124          */
 125         private function sendPurgeRequest( $urls ) {
 126                 if ( $this->hasOption( 'delay' ) ) {
 127                         $delay = floatval( $this->getOption( 'delay' ) );
 128                         foreach ( $urls as $url ) {
 129                                 if ( $this->hasOption( 'verbose' ) ) {
 130                                         $this->output( $url . "\n" );
 131                                 }
 132                                 $u = new SquidUpdate( array( $url ) );
 133                                 $u->doUpdate();
 134                                 usleep( $delay * 1e6 );
 135                         }
 136                 } else {
 137                         if ( $this->hasOption( 'verbose' ) ) {
 138                                 $this->output( implode( "\n", $urls ) . "\n" );
 139                         }
 140                         $u = new SquidUpdate( $urls );
 141                         $u->doUpdate();
 142                 }
 143         }
 144 }
 145
 146 $maintClass = "PurgeList";
 147 require_once RUN_MAINTENANCE_IF_MAIN;