]> scripts.mit.edu Git - autoinstalls/mediawiki.git/blobdiff - maintenance/rebuildrecentchanges.php
MediaWiki 1.17.1
[autoinstalls/mediawiki.git] / maintenance / rebuildrecentchanges.php
index 77816cf8b2c4c56d1a3e3873e53f2949d76ed829..5cacac657709f403b98b6946cb0c9ec843598f34 100644 (file)
  * Rebuild link tracking tables from scratch.  This takes several
  * hours, depending on the database size and server configuration.
  *
- * @todo document
- * @package MediaWiki
- * @subpackage Maintenance
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @ingroup Maintenance
+ * @todo Document
  */
 
-/** */
-require_once( "commandLine.inc" );
-require_once( "rebuildrecentchanges.inc" );
-$wgTitle = Title::newFromText( "Rebuild recent changes script" );
+require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+
+class RebuildRecentchanges extends Maintenance {
+       public function __construct() {
+               parent::__construct();
+               $this->mDescription = "Rebuild recent changes";
+       }
+
+       public function execute() {
+               $this->rebuildRecentChangesTablePass1();
+               $this->rebuildRecentChangesTablePass2();
+               $this->rebuildRecentChangesTablePass3();
+               $this->rebuildRecentChangesTablePass4();
+               $this->purgeFeeds();
+               $this->output( "Done.\n" );
+       }
+
+       /**
+        * Rebuild pass 1
+        * DOCUMENT ME!
+        */
+       private function rebuildRecentChangesTablePass1() {
+               $dbw = wfGetDB( DB_MASTER );
+
+               $dbw->delete( 'recentchanges', '*' );
+
+               $this->output( "Loading from page and revision tables...\n" );
+
+               global $wgRCMaxAge;
+
+               $this->output( '$wgRCMaxAge=' . $wgRCMaxAge );
+               $days = $wgRCMaxAge / 24 / 3600;
+               if ( intval( $days ) == $days ) {
+                               $this->output( " (" . $days . " days)\n" );
+               } else {
+                               $this->output( " (approx. " .  intval( $days ) . " days)\n" );
+               }
+
+               $cutoff = time() - $wgRCMaxAge;
+               $dbw->insertSelect( 'recentchanges', array( 'page', 'revision' ),
+                       array(
+                               'rc_timestamp'  => 'rev_timestamp',
+                               'rc_cur_time'   => 'rev_timestamp',
+                               'rc_user'       => 'rev_user',
+                               'rc_user_text'  => 'rev_user_text',
+                               'rc_namespace'  => 'page_namespace',
+                               'rc_title'      => 'page_title',
+                               'rc_comment'    => 'rev_comment',
+                               'rc_minor'      => 'rev_minor_edit',
+                               'rc_bot'        => 0,
+                               'rc_new'        => 'page_is_new',
+                               'rc_cur_id'     => 'page_id',
+                               'rc_this_oldid' => 'rev_id',
+                               'rc_last_oldid' => 0, // is this ok?
+                               'rc_type'       => $dbw->conditional( 'page_is_new != 0', RC_NEW, RC_EDIT ),
+                               'rc_deleted'    => 'rev_deleted'
+                       ), array(
+                               'rev_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
+                               'rev_page=page_id'
+                       ), __METHOD__,
+                       array(), // INSERT options
+                       array( 'ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 5000 ) // SELECT options
+               );
+       }
+
+       /**
+        * Rebuild pass 2
+        * DOCUMENT ME!
+        */
+       private function rebuildRecentChangesTablePass2() {
+               $dbw = wfGetDB( DB_MASTER );
+               list ( $recentchanges, $revision ) = $dbw->tableNamesN( 'recentchanges', 'revision' );
+
+               $this->output( "Updating links and size differences...\n" );
+
+               # Fill in the rc_last_oldid field, which points to the previous edit
+               $sql = "SELECT rc_cur_id,rc_this_oldid,rc_timestamp FROM $recentchanges " .
+                 "ORDER BY rc_cur_id,rc_timestamp";
+               $res = $dbw->query( $sql, DB_MASTER );
+
+               $lastCurId = 0;
+               $lastOldId = 0;
+               foreach ( $res as $obj ) {
+                       $new = 0;
+                       if ( $obj->rc_cur_id != $lastCurId ) {
+                               # Switch! Look up the previous last edit, if any
+                               $lastCurId = intval( $obj->rc_cur_id );
+                               $emit = $obj->rc_timestamp;
+                               $sql2 = "SELECT rev_id,rev_len FROM $revision " .
+                                       "WHERE rev_page={$lastCurId} " .
+                                       "AND rev_timestamp<'{$emit}' ORDER BY rev_timestamp DESC";
+                               $sql2 = $dbw->limitResult( $sql2, 1, false );
+                               $res2 = $dbw->query( $sql2 );
+                               $row = $dbw->fetchObject( $res2 );
+                               if ( $row ) {
+                                       $lastOldId = intval( $row->rev_id );
+                                       # Grab the last text size if available
+                                       $lastSize = !is_null( $row->rev_len ) ? intval( $row->rev_len ) : 'NULL';
+                               } else {
+                                       # No previous edit
+                                       $lastOldId = 0;
+                                       $lastSize = 'NULL';
+                                       $new = 1; // probably true
+                               }
+                       }
+                       if ( $lastCurId == 0 ) {
+                               $this->output( "Uhhh, something wrong? No curid\n" );
+                       } else {
+                               # Grab the entry's text size
+                               $size = $dbw->selectField( 'revision', 'rev_len', array( 'rev_id' => $obj->rc_this_oldid ) );
+
+                               $dbw->update( 'recentchanges',
+                                       array(
+                                               'rc_last_oldid' => $lastOldId,
+                                               'rc_new'        => $new,
+                                               'rc_type'       => $new,
+                                               'rc_old_len'    => $lastSize,
+                                               'rc_new_len'    => $size,
+                                       ), array(
+                                               'rc_cur_id'     => $lastCurId,
+                                               'rc_this_oldid' => $obj->rc_this_oldid,
+                                       ),
+                                       __METHOD__
+                               );
+
+                               $lastOldId = intval( $obj->rc_this_oldid );
+                               $lastSize = $size;
+                       }
+               }
+       }
+
+       /**
+        * Rebuild pass 3
+        * DOCUMENT ME!
+        */
+       private function rebuildRecentChangesTablePass3() {
+               $dbw = wfGetDB( DB_MASTER );
+
+               $this->output( "Loading from user, page, and logging tables...\n" );
+
+               global $wgRCMaxAge, $wgLogTypes, $wgLogRestrictions;
+               // Some logs don't go in RC. This should check for that
+               $basicRCLogs = array_diff( $wgLogTypes, array_keys( $wgLogRestrictions ) );
+
+               // Escape...blah blah
+               $selectLogs = array();
+               foreach ( $basicRCLogs as $logtype ) {
+                       $safetype = $dbw->strencode( $logtype );
+                       $selectLogs[] = "'$safetype'";
+               }
+
+               $cutoff = time() - $wgRCMaxAge;
+               list( $logging, $page ) = $dbw->tableNamesN( 'logging', 'page' );
+               $dbw->insertSelect( 'recentchanges', array( 'user', "$logging LEFT JOIN $page ON (log_namespace=page_namespace AND log_title=page_title)" ),
+                       array(
+                               'rc_timestamp'  => 'log_timestamp',
+                               'rc_cur_time'   => 'log_timestamp',
+                               'rc_user'       => 'log_user',
+                               'rc_user_text'  => 'user_name',
+                               'rc_namespace'  => 'log_namespace',
+                               'rc_title'      => 'log_title',
+                               'rc_comment'    => 'log_comment',
+                               'rc_minor'      => 0,
+                               'rc_bot'        => 0,
+                               'rc_patrolled'  => 1,
+                               'rc_new'        => 0,
+                               'rc_this_oldid' => 0,
+                               'rc_last_oldid' => 0,
+                               'rc_type'       => RC_LOG,
+                               'rc_cur_id'     => $dbw->cascadingDeletes() ? 'page_id' : 'COALESCE(page_id, 0)',
+                               'rc_log_type'   => 'log_type',
+                               'rc_log_action' => 'log_action',
+                               'rc_logid'      => 'log_id',
+                               'rc_params'     => 'log_params',
+                               'rc_deleted'    => 'log_deleted'
+                       ), array(
+                               'log_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
+                               'log_user=user_id',
+                               'log_type IN(' . implode( ',', $selectLogs ) . ')'
+                       ), __METHOD__,
+                       array(), // INSERT options
+                       array( 'ORDER BY' => 'log_timestamp DESC', 'LIMIT' => 5000 ) // SELECT options
+               );
+       }
+
+       /**
+        * Rebuild pass 4
+        * DOCUMENT ME!
+        */
+       private function rebuildRecentChangesTablePass4() {
+               global $wgGroupPermissions, $wgUseRCPatrol;
+
+               $dbw = wfGetDB( DB_MASTER );
+
+               list( $recentchanges, $usergroups, $user ) = $dbw->tableNamesN( 'recentchanges', 'user_groups', 'user' );
+
+               $botgroups = $autopatrolgroups = array();
+               foreach ( $wgGroupPermissions as $group => $rights ) {
+                       if ( isset( $rights['bot'] ) && $rights['bot'] ) {
+                               $botgroups[] = $dbw->addQuotes( $group );
+                       }
+                       if ( $wgUseRCPatrol && isset( $rights['autopatrol'] ) && $rights['autopatrol'] ) {
+                               $autopatrolgroups[] = $dbw->addQuotes( $group );
+                       }
+               }
+               # Flag our recent bot edits
+               if ( !empty( $botgroups ) ) {
+                       $botwhere = implode( ',', $botgroups );
+                       $botusers = array();
+
+                       $this->output( "Flagging bot account edits...\n" );
+
+                       # Find all users that are bots
+                       $sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
+                               "WHERE ug_group IN($botwhere) AND user_id = ug_user";
+                       $res = $dbw->query( $sql, DB_MASTER );
+
+                       foreach ( $res as $obj ) {
+                               $botusers[] = $dbw->addQuotes( $obj->user_name );
+                       }
+                       # Fill in the rc_bot field
+                       if ( !empty( $botusers ) ) {
+                               $botwhere = implode( ',', $botusers );
+                               $sql2 = "UPDATE $recentchanges SET rc_bot=1 " .
+                                       "WHERE rc_user_text IN($botwhere)";
+                               $dbw->query( $sql2 );
+                       }
+               }
+               global $wgMiserMode;
+               # Flag our recent autopatrolled edits
+               if ( !$wgMiserMode && !empty( $autopatrolgroups ) ) {
+                       $patrolwhere = implode( ',', $autopatrolgroups );
+                       $patrolusers = array();
+
+                       $this->output( "Flagging auto-patrolled edits...\n" );
+
+                       # Find all users in RC with autopatrol rights
+                       $sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
+                               "WHERE ug_group IN($patrolwhere) AND user_id = ug_user";
+                       $res = $dbw->query( $sql, DB_MASTER );
+
+                       foreach ( $res as $obj ) {
+                               $patrolusers[] = $dbw->addQuotes( $obj->user_name );
+                       }
+
+                       # Fill in the rc_patrolled field
+                       if ( !empty( $patrolusers ) ) {
+                               $patrolwhere = implode( ',', $patrolusers );
+                               $sql2 = "UPDATE $recentchanges SET rc_patrolled=1 " .
+                                       "WHERE rc_user_text IN($patrolwhere)";
+                               $dbw->query( $sql2 );
+                       }
+               }
+       }
+
+       /**
+        * Purge cached feeds in $messageMemc
+        */
+       private function purgeFeeds() {
+               global $wgFeedClasses, $messageMemc;
 
-$wgDBuser                      = $wgDBadminuser;
-$wgDBpassword          = $wgDBadminpassword;
+               $this->output( "Deleting feed timestamps.\n" );
 
-rebuildRecentChangesTablePass1();
-rebuildRecentChangesTablePass2();
+               foreach ( $wgFeedClasses as $feed => $className ) {
+                       $messageMemc->delete( wfMemcKey( 'rcfeed', $feed, 'timestamp' ) ); # Good enough for now.
+               }
+       }
 
-print "Done.\n";
-exit();
+}
 
-?>
+$maintClass = "RebuildRecentchanges";
+require_once( RUN_MAINTENANCE_IF_MAIN );