cleanupTitles.php

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<?php
require_once( __DIR__ . '/cleanupTable.inc' );

class TitleCleanup extends TableCleanup {
        public function __construct() {
                parent::__construct();
                $this->mDescription = "Script to clean up broken, unparseable titles";
        }

        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 )
                {
                        return $this->progress( 0 );  // all is fine
                }

                if ( $row->page_namespace == NS_FILE && $this->fileExists( $row->page_title ) ) {
                        $this->output( "file $row->page_title needs cleanup, please run cleanupImages.php.\n" );
                        return $this->progress( 0 );
                } elseif ( is_null( $title ) ) {
                        $this->output( "page $row->page_id ($display) is illegal.\n" );
                        $this->moveIllegalPage( $row );
                        return $this->progress( 1 );
                } else {
                        $this->output( "page $row->page_id ($display) doesn't match self.\n" );
                        $this->moveInconsistentPage( $row, $title );
                        return $this->progress( 1 );
                }
        }

        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 = wfGetDB( DB_SLAVE );
                $row = $dbr->selectRow( 'image', array( 'img_name' ), array( 'img_name' => $name ), __METHOD__ );
                return $row !== false;
        }

        protected function moveIllegalPage( $row ) {
                $legal = 'A-Za-z0-9_/\\\\-';
                $legalized = preg_replace_callback( "!([^$legal])!",
                        array( &$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 = wfGetDB( DB_MASTER );
                        $dbw->update( 'page',
                                array( 'page_title' => $dest ),
                                array( 'page_id' => $row->page_id ),
                                __METHOD__ );
                }
        }

        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;

                        $clean = 'Broken/' . $prior;
                        $verified = Title::makeTitleSafe( $ns, $clean );
                        if ( $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 = wfGetDB( DB_MASTER );
                        $dbw->update( 'page',
                                array(
                                        'page_namespace' => $ns,
                                        'page_title' => $dest
                                ),
                                array( 'page_id' => $row->page_id ),
                                __METHOD__ );
                        LinkCache::singleton()->clear();
                }
        }
}

$maintClass = "TitleCleanup";
require_once( RUN_MAINTENANCE_IF_MAIN );