26505b170a
Until now, we relied on setting MW_NO_SETUP which was a) hacky, b) irreversable, and c) likely to be forgotten if you didn't use one of the wrappers like runChild(). Instead, move the freaky magic to doMaintenance and have *it* check if it's in a specific call stack that indicates this is being run from the file scope and should be executed. Rename DO_MAINTENANCE to RUN_MAINTENANCE_IF_MAIN so it's nice and clear what magic happens behind the require_once().
297 lines
9.2 KiB
PHP
297 lines
9.2 KiB
PHP
<?php
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/**
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* Rebuild link tracking tables from scratch. This takes several
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* hours, 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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* @ingroup Maintenance
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* @todo Document
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*/
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require_once( dirname( __FILE__ ) . '/Maintenance.php' );
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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' => $obj->rc_this_oldid ) );
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$size = !is_null( $size ) ? intval( $size ) : 'NULL';
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$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 $wgGroupPermissions, $wgUseRCPatrol;
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$dbw = wfGetDB( DB_MASTER );
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list( $recentchanges, $usergroups, $user ) = $dbw->tableNamesN( 'recentchanges', 'user_groups', 'user' );
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$botgroups = $autopatrolgroups = array();
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foreach ( $wgGroupPermissions as $group => $rights ) {
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if ( isset( $rights['bot'] ) && $rights['bot'] ) {
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$botgroups[] = $dbw->addQuotes( $group );
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}
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if ( $wgUseRCPatrol && isset( $rights['autopatrol'] ) && $rights['autopatrol'] ) {
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$autopatrolgroups[] = $dbw->addQuotes( $group );
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}
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}
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# Flag our recent bot edits
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if ( !empty( $botgroups ) ) {
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$botwhere = implode( ',', $botgroups );
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$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 = implode( ',', $autopatrolgroups );
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$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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