1 files changed, 99 insertions, 0 deletions
diff --git a/www/wiki/maintenance/cleanupWatchlist.php b/www/wiki/maintenance/cleanupWatchlist.php
new file mode 100644
index 00000000..64d39dd6
--- /dev/null
+++ b/www/wiki/maintenance/cleanupWatchlist.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * Remove broken, unparseable titles in the watchlist table.
+ *
+ * Usage: php cleanupWatchlist.php [--fix]
+ * Options:
+ *   --fix  Actually remove entries; without will only report.
+ *
+ * Copyright © 2005,2006 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 remove broken, unparseable titles in the watchlist table.
+ *
+ * @ingroup Maintenance
+ */
+class WatchlistCleanup extends TableCleanup {
+	protected $defaultParams = [
+		'table' => 'watchlist',
+		'index' => [ 'wl_user', 'wl_namespace', 'wl_title' ],
+		'conds' => [],
+		'callback' => 'processRow'
+	];
+
+	public function __construct() {
+		parent::__construct();
+		$this->addDescription( 'Script to remove broken, unparseable titles in the Watchlist' );
+		$this->addOption( 'fix', 'Actually remove entries; without will only report.' );
+	}
+
+	function execute() {
+		if ( !$this->hasOption( 'fix' ) ) {
+			$this->output( "Dry run only: use --fix to enable updates\n" );
+		}
+		parent::execute();
+	}
+
+	protected function processRow( $row ) {
+		global $wgContLang;
+		$current = Title::makeTitle( $row->wl_namespace, $row->wl_title );
+		$display = $current->getPrefixedText();
+		$verified = $wgContLang->normalize( $display );
+		$title = Title::newFromText( $verified );
+
+		if ( $row->wl_user == 0 || is_null( $title ) || !$title->equals( $current ) ) {
+			$this->output( "invalid watch by {$row->wl_user} for "
+				. "({$row->wl_namespace}, \"{$row->wl_title}\")\n" );
+			$updated = $this->removeWatch( $row );
+			$this->progress( $updated );
+
+			return;
+		}
+		$this->progress( 0 );
+	}
+
+	private function removeWatch( $row ) {
+		if ( !$this->dryrun && $this->hasOption( 'fix' ) ) {
+			$dbw = $this->getDB( DB_MASTER );
+			$dbw->delete(
+				'watchlist', [
+				'wl_user' => $row->wl_user,
+				'wl_namespace' => $row->wl_namespace,
+				'wl_title' => $row->wl_title ],
+				__METHOD__
+			);
+
+			$this->output( "- removed\n" );
+
+			return 1;
+		} else {
+			return 0;
+		}
+	}
+}
+
+$maintClass = WatchlistCleanup::class;
+require_once RUN_MAINTENANCE_IF_MAIN;