1 files changed, 105 insertions, 0 deletions
diff --git a/www/wiki/maintenance/deleteDefaultMessages.php b/www/wiki/maintenance/deleteDefaultMessages.php
new file mode 100644
index 00000000..326073f1
--- /dev/null
+++ b/www/wiki/maintenance/deleteDefaultMessages.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * Deletes all pages in the MediaWiki namespace which were last edited by
+ * "MediaWiki default".
+ *
+ * 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
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script that deletes all pages in the MediaWiki namespace
+ * which were last edited by "MediaWiki default".
+ *
+ * @ingroup Maintenance
+ */
+class DeleteDefaultMessages extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addDescription( 'Deletes all pages in the MediaWiki namespace' .
+			' which were last edited by "MediaWiki default"' );
+		$this->addOption( 'dry-run', 'Perform a dry run, delete nothing' );
+	}
+
+	public function execute() {
+		global $wgUser;
+
+		$this->output( "Checking existence of old default messages..." );
+		$dbr = $this->getDB( DB_REPLICA );
+
+		$actorQuery = ActorMigration::newMigration()
+			->getWhere( $dbr, 'rev_user', User::newFromName( 'MediaWiki default' ) );
+		$res = $dbr->select(
+			[ 'page', 'revision' ] + $actorQuery['tables'],
+			[ 'page_namespace', 'page_title' ],
+			[
+				'page_namespace' => NS_MEDIAWIKI,
+				$actorQuery['conds'],
+			],
+			__METHOD__,
+			[],
+			[ 'revision' => [ 'JOIN', 'page_latest=rev_id' ] ] + $actorQuery['joins']
+		);
+
+		if ( $dbr->numRows( $res ) == 0 ) {
+			// No more messages left
+			$this->output( "done.\n" );
+			return;
+		}
+
+		$dryrun = $this->hasOption( 'dry-run' );
+		if ( $dryrun ) {
+			foreach ( $res as $row ) {
+				$title = Title::makeTitle( $row->page_namespace, $row->page_title );
+				$this->output( "\n* [[$title]]" );
+			}
+			$this->output( "\n\nRun again without --dry-run to delete these pages.\n" );
+			return;
+		}
+
+		// Deletions will be made by $user temporarly added to the bot group
+		// in order to hide it in RecentChanges.
+		$user = User::newFromName( 'MediaWiki default' );
+		if ( !$user ) {
+			$this->fatalError( "Invalid username" );
+		}
+		$user->addGroup( 'bot' );
+		$wgUser = $user;
+
+		// Handle deletion
+		$this->output( "\n...deleting old default messages (this may take a long time!)...", 'msg' );
+		$dbw = $this->getDB( DB_MASTER );
+
+		foreach ( $res as $row ) {
+			wfWaitForSlaves();
+			$dbw->ping();
+			$title = Title::makeTitle( $row->page_namespace, $row->page_title );
+			$page = WikiPage::factory( $title );
+			$error = ''; // Passed by ref
+			// FIXME: Deletion failures should be reported, not silently ignored.
+			$page->doDeleteArticle( 'No longer required', false, 0, true, $error, $user );
+		}
+
+		$this->output( "done!\n", 'msg' );
+	}
+}
+
+$maintClass = DeleteDefaultMessages::class;
+require_once RUN_MAINTENANCE_IF_MAIN;