mirror of
https://github.com/YunoHost-Apps/mediawiki_ynh.git
synced 2024-09-03 19:46:05 +02:00
295 lines
9 KiB
PHP
295 lines
9 KiB
PHP
<?php
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/**
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* Rebuild recent changes from scratch. This takes several hours,
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* depending on the database size and server configuration.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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* @todo Document
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*/
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Maintenance script that rebuilds recent changes from scratch.
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*
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* @ingroup Maintenance
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*/
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class RebuildRecentchanges extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->mDescription = "Rebuild recent changes";
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}
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public function execute() {
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$this->rebuildRecentChangesTablePass1();
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$this->rebuildRecentChangesTablePass2();
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$this->rebuildRecentChangesTablePass3();
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$this->rebuildRecentChangesTablePass4();
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$this->purgeFeeds();
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$this->output( "Done.\n" );
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}
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/**
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* Rebuild pass 1
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* DOCUMENT ME!
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*/
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private function rebuildRecentChangesTablePass1() {
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$dbw = wfGetDB( DB_MASTER );
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$dbw->delete( 'recentchanges', '*' );
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$this->output( "Loading from page and revision tables...\n" );
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global $wgRCMaxAge;
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$this->output( '$wgRCMaxAge=' . $wgRCMaxAge );
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$days = $wgRCMaxAge / 24 / 3600;
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if ( intval( $days ) == $days ) {
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$this->output( " (" . $days . " days)\n" );
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} else {
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$this->output( " (approx. " . intval( $days ) . " days)\n" );
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}
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$cutoff = time() - $wgRCMaxAge;
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$dbw->insertSelect( 'recentchanges', array( 'page', 'revision' ),
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array(
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'rc_timestamp' => 'rev_timestamp',
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'rc_cur_time' => 'rev_timestamp',
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'rc_user' => 'rev_user',
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'rc_user_text' => 'rev_user_text',
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'rc_namespace' => 'page_namespace',
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'rc_title' => 'page_title',
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'rc_comment' => 'rev_comment',
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'rc_minor' => 'rev_minor_edit',
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'rc_bot' => 0,
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'rc_new' => 'page_is_new',
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'rc_cur_id' => 'page_id',
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'rc_this_oldid' => 'rev_id',
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'rc_last_oldid' => 0, // is this ok?
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'rc_type' => $dbw->conditional( 'page_is_new != 0', RC_NEW, RC_EDIT ),
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'rc_deleted' => 'rev_deleted'
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), array(
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'rev_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
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'rev_page=page_id'
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), __METHOD__,
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array(), // INSERT options
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array( 'ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 5000 ) // SELECT options
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);
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}
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/**
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* Rebuild pass 2
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* DOCUMENT ME!
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*/
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private function rebuildRecentChangesTablePass2() {
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$dbw = wfGetDB( DB_MASTER );
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list( $recentchanges, $revision ) = $dbw->tableNamesN( 'recentchanges', 'revision' );
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$this->output( "Updating links and size differences...\n" );
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# Fill in the rc_last_oldid field, which points to the previous edit
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$sql = "SELECT rc_cur_id,rc_this_oldid,rc_timestamp FROM $recentchanges " .
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"ORDER BY rc_cur_id,rc_timestamp";
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$res = $dbw->query( $sql, DB_MASTER );
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$lastCurId = 0;
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$lastOldId = 0;
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foreach ( $res as $obj ) {
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$new = 0;
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if ( $obj->rc_cur_id != $lastCurId ) {
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# Switch! Look up the previous last edit, if any
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$lastCurId = intval( $obj->rc_cur_id );
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$emit = $obj->rc_timestamp;
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$sql2 = "SELECT rev_id,rev_len FROM $revision " .
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"WHERE rev_page={$lastCurId} " .
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"AND rev_timestamp<'{$emit}' ORDER BY rev_timestamp DESC";
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$sql2 = $dbw->limitResult( $sql2, 1, false );
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$res2 = $dbw->query( $sql2 );
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$row = $dbw->fetchObject( $res2 );
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if ( $row ) {
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$lastOldId = intval( $row->rev_id );
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# Grab the last text size if available
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$lastSize = !is_null( $row->rev_len ) ? intval( $row->rev_len ) : null;
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} else {
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# No previous edit
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$lastOldId = 0;
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$lastSize = null;
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$new = 1; // probably true
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}
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}
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if ( $lastCurId == 0 ) {
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$this->output( "Uhhh, something wrong? No curid\n" );
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} else {
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# Grab the entry's text size
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$size = $dbw->selectField( 'revision', 'rev_len', array( 'rev_id' => $obj->rc_this_oldid ) );
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$dbw->update( 'recentchanges',
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array(
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'rc_last_oldid' => $lastOldId,
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'rc_new' => $new,
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'rc_type' => $new,
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'rc_old_len' => $lastSize,
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'rc_new_len' => $size,
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), array(
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'rc_cur_id' => $lastCurId,
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'rc_this_oldid' => $obj->rc_this_oldid,
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),
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__METHOD__
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);
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$lastOldId = intval( $obj->rc_this_oldid );
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$lastSize = $size;
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}
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}
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}
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/**
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* Rebuild pass 3
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* DOCUMENT ME!
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*/
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private function rebuildRecentChangesTablePass3() {
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$dbw = wfGetDB( DB_MASTER );
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$this->output( "Loading from user, page, and logging tables...\n" );
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global $wgRCMaxAge, $wgLogTypes, $wgLogRestrictions;
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// Some logs don't go in RC. This should check for that
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$basicRCLogs = array_diff( $wgLogTypes, array_keys( $wgLogRestrictions ) );
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// Escape...blah blah
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$selectLogs = array();
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foreach ( $basicRCLogs as $logtype ) {
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$safetype = $dbw->strencode( $logtype );
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$selectLogs[] = "'$safetype'";
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}
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$cutoff = time() - $wgRCMaxAge;
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list( $logging, $page ) = $dbw->tableNamesN( 'logging', 'page' );
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$dbw->insertSelect( 'recentchanges', array( 'user', "$logging LEFT JOIN $page ON (log_namespace=page_namespace AND log_title=page_title)" ),
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array(
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'rc_timestamp' => 'log_timestamp',
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'rc_cur_time' => 'log_timestamp',
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'rc_user' => 'log_user',
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'rc_user_text' => 'user_name',
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'rc_namespace' => 'log_namespace',
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'rc_title' => 'log_title',
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'rc_comment' => 'log_comment',
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'rc_minor' => 0,
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'rc_bot' => 0,
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'rc_patrolled' => 1,
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'rc_new' => 0,
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'rc_this_oldid' => 0,
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'rc_last_oldid' => 0,
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'rc_type' => RC_LOG,
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'rc_cur_id' => $dbw->cascadingDeletes() ? 'page_id' : 'COALESCE(page_id, 0)',
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'rc_log_type' => 'log_type',
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'rc_log_action' => 'log_action',
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'rc_logid' => 'log_id',
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'rc_params' => 'log_params',
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'rc_deleted' => 'log_deleted'
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), array(
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'log_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
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'log_user=user_id',
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'log_type IN(' . implode( ',', $selectLogs ) . ')'
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), __METHOD__,
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array(), // INSERT options
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array( 'ORDER BY' => 'log_timestamp DESC', 'LIMIT' => 5000 ) // SELECT options
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);
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}
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/**
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* Rebuild pass 4
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* DOCUMENT ME!
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*/
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private function rebuildRecentChangesTablePass4() {
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global $wgUseRCPatrol;
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$dbw = wfGetDB( DB_MASTER );
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list( $recentchanges, $usergroups, $user ) = $dbw->tableNamesN( 'recentchanges', 'user_groups', 'user' );
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$botgroups = User::getGroupsWithPermission( 'bot' );
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$autopatrolgroups = $wgUseRCPatrol ? User::getGroupsWithPermission( 'autopatrol' ) : array();
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# Flag our recent bot edits
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if ( !empty( $botgroups ) ) {
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$botwhere = $dbw->makeList( $botgroups );
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$botusers = array();
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$this->output( "Flagging bot account edits...\n" );
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# Find all users that are bots
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$sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
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"WHERE ug_group IN($botwhere) AND user_id = ug_user";
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$res = $dbw->query( $sql, DB_MASTER );
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foreach ( $res as $obj ) {
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$botusers[] = $dbw->addQuotes( $obj->user_name );
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}
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# Fill in the rc_bot field
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if ( !empty( $botusers ) ) {
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$botwhere = implode( ',', $botusers );
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$sql2 = "UPDATE $recentchanges SET rc_bot=1 " .
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"WHERE rc_user_text IN($botwhere)";
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$dbw->query( $sql2 );
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}
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}
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global $wgMiserMode;
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# Flag our recent autopatrolled edits
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if ( !$wgMiserMode && !empty( $autopatrolgroups ) ) {
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$patrolwhere = $dbw->makeList( $autopatrolgroups );
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$patrolusers = array();
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$this->output( "Flagging auto-patrolled edits...\n" );
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# Find all users in RC with autopatrol rights
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$sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
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"WHERE ug_group IN($patrolwhere) AND user_id = ug_user";
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$res = $dbw->query( $sql, DB_MASTER );
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foreach ( $res as $obj ) {
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$patrolusers[] = $dbw->addQuotes( $obj->user_name );
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}
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# Fill in the rc_patrolled field
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if ( !empty( $patrolusers ) ) {
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$patrolwhere = implode( ',', $patrolusers );
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$sql2 = "UPDATE $recentchanges SET rc_patrolled=1 " .
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"WHERE rc_user_text IN($patrolwhere)";
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$dbw->query( $sql2 );
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}
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}
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}
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/**
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* Purge cached feeds in $messageMemc
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*/
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private function purgeFeeds() {
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global $wgFeedClasses, $messageMemc;
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$this->output( "Deleting feed timestamps.\n" );
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foreach ( $wgFeedClasses as $feed => $className ) {
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$messageMemc->delete( wfMemcKey( 'rcfeed', $feed, 'timestamp' ) ); # Good enough for now.
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}
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}
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}
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$maintClass = "RebuildRecentchanges";
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require_once RUN_MAINTENANCE_IF_MAIN;
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