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<?php
/**
* Clean up broken, unparseable titles.
*
* Copyright © 2005 Brion Vibber <brion@pobox.com>
* https://www.mediawiki.org/
*
* 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
*
* @file
* @author Brion Vibber <brion at pobox.com>
* @ingroup Maintenance
*/
require_once __DIR__ . '/cleanupTable.inc';
/**
* Maintenance script to clean up broken, unparseable titles.
*
* @ingroup Maintenance
*/
class TitleCleanup extends TableCleanup {
public function __construct() {
parent::__construct();
$this->addDescription( 'Script to clean up broken, unparseable titles' );
}
/**
* @param object $row
*/
protected function processRow( $row ) {
global $wgContLang;
$display = Title::makeName( $row->page_namespace, $row->page_title );
$verified = $wgContLang->normalize( $display );
$title = Title::newFromText( $verified );
if ( !is_null( $title )
&& $title->canExist()
&& $title->getNamespace() == $row->page_namespace
&& $title->getDBkey() === $row->page_title
) {
$this->progress( 0 ); // all is fine
return;
}
if ( $row->page_namespace == NS_FILE && $this->fileExists( $row->page_title ) ) {
$this->output( "file $row->page_title needs cleanup, please run cleanupImages.php.\n" );
$this->progress( 0 );
} elseif ( is_null( $title ) ) {
$this->output( "page $row->page_id ($display) is illegal.\n" );
$this->moveIllegalPage( $row );
$this->progress( 1 );
} else {
$this->output( "page $row->page_id ($display) doesn't match self.\n" );
$this->moveInconsistentPage( $row, $title );
$this->progress( 1 );
}
}
/**
* @param string $name
* @return bool
*/
protected function fileExists( $name ) {
// XXX: Doesn't actually check for file existence, just presence of image record.
// This is reasonable, since cleanupImages.php only iterates over the image table.
$dbr = $this->getDB( DB_SLAVE );
$row = $dbr->selectRow( 'image', [ 'img_name' ], [ 'img_name' => $name ], __METHOD__ );
return $row !== false;
}
/**
* @param object $row
*/
protected function moveIllegalPage( $row ) {
$legal = 'A-Za-z0-9_/\\\\-';
$legalized = preg_replace_callback( "!([^$legal])!",
[ $this, 'hexChar' ],
$row->page_title );
if ( $legalized == '.' ) {
$legalized = '(dot)';
}
if ( $legalized == '_' ) {
$legalized = '(space)';
}
$legalized = 'Broken/' . $legalized;
$title = Title::newFromText( $legalized );
if ( is_null( $title ) ) {
$clean = 'Broken/id:' . $row->page_id;
$this->output( "Couldn't legalize; form '$legalized' still invalid; using '$clean'\n" );
$title = Title::newFromText( $clean );
} elseif ( $title->exists() ) {
$clean = 'Broken/id:' . $row->page_id;
$this->output( "Legalized for '$legalized' exists; using '$clean'\n" );
$title = Title::newFromText( $clean );
}
$dest = $title->getDBkey();
if ( $this->dryrun ) {
$this->output( "DRY RUN: would rename $row->page_id ($row->page_namespace," .
"'$row->page_title') to ($row->page_namespace,'$dest')\n" );
} else {
$this->output( "renaming $row->page_id ($row->page_namespace," .
"'$row->page_title') to ($row->page_namespace,'$dest')\n" );
$dbw = $this->getDB( DB_MASTER );
$dbw->update( 'page',
[ 'page_title' => $dest ],
[ 'page_id' => $row->page_id ],
__METHOD__ );
}
}
/**
* @param object $row
* @param Title $title
*/
protected function moveInconsistentPage( $row, $title ) {
if ( $title->exists() || $title->getInterwiki() || !$title->canExist() ) {
if ( $title->getInterwiki() || !$title->canExist() ) {
$prior = $title->getPrefixedDBkey();
} else {
$prior = $title->getDBkey();
}
# Old cleanupTitles could move articles there. See bug 23147.
$ns = $row->page_namespace;
if ( $ns < 0 ) {
$ns = 0;
}
# Namespace which no longer exists. Put the page in the main namespace
# since we don't have any idea of the old namespace name. See bug 68501.
if ( !MWNamespace::exists( $ns ) ) {
$ns = 0;
}
$clean = 'Broken/' . $prior;
$verified = Title::makeTitleSafe( $ns, $clean );
if ( !$verified || $verified->exists() ) {
$blah = "Broken/id:" . $row->page_id;
$this->output( "Couldn't legalize; form '$clean' exists; using '$blah'\n" );
$verified = Title::makeTitleSafe( $ns, $blah );
}
$title = $verified;
}
if ( is_null( $title ) ) {
$this->error( "Something awry; empty title.", true );
}
$ns = $title->getNamespace();
$dest = $title->getDBkey();
if ( $this->dryrun ) {
$this->output( "DRY RUN: would rename $row->page_id ($row->page_namespace," .
"'$row->page_title') to ($ns,'$dest')\n" );
} else {
$this->output( "renaming $row->page_id ($row->page_namespace," .
"'$row->page_title') to ($ns,'$dest')\n" );
$dbw = $this->getDB( DB_MASTER );
$dbw->update( 'page',
[
'page_namespace' => $ns,
'page_title' => $dest
],
[ 'page_id' => $row->page_id ],
__METHOD__ );
LinkCache::singleton()->clear();
}
}
}
$maintClass = "TitleCleanup";
require_once RUN_MAINTENANCE_IF_MAIN;