--- /dev/null
+<?php
+/**
+ * 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
+ * of which the content is equal to the system default.
+ *
+ * @ingroup Maintenance
+ */
+class DeleteEqualMessages extends Maintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Deletes all pages in the MediaWiki namespace that are equal to the default message";
+ $this->addOption( 'delete', 'Actually delete the pages' );
+ $this->addOption( 'delete-talk', 'Don\'t leave orphaned talk pages behind' );
+ $this->addOption( 'lang-code', 'Check for subpages of this lang-code (default: root page against content language)', false, true );
+ }
+
+ public function execute() {
+ global $wgUser, $wgContLang;
+
+ $doDelete = $this->hasOption( 'delete' );
+ $doDeleteTalk = $this->hasOption( 'delete-talk' );
+ $forLangCode = $this->getOption( 'lang-code' );
+
+ if ( $forLangCode ) {
+ $langObj = Language::factory( $forLangCode );
+ $langCode = $langObj->getCode();
+ $nonContLang = true;
+ } else {
+ $langObj = $wgContLang;
+ $langCode = $wgContLang->getCode();
+ $nonContLang = false;
+ }
+
+ $this->output( "Checking for pages with default message..." );
+
+ /* Based on SpecialAllmessages::reallyDoQuery #filter=modified */
+
+ $messageNames = Language::getLocalisationCache()->getSubitemList( 'en', 'messages' );
+ // Normalise message names for NS_MEDIAWIKI page_title
+ $messageNames = array_map( array( $langObj, 'ucfirst' ), $messageNames );
+ // TODO: Do the below for each language code (e.g. delete /xxx subpage if equal to MessagesXxx)
+ // Right now it only takes care of the root override, which is enough since most wikis aren't multi-lang wikis.
+ $statuses = AllmessagesTablePager::getCustomisedStatuses( $messageNames, $langCode, $nonContLang );
+
+ $relevantPages = 0;
+ $equalPages = 0;
+ $equalPagesTalks = 0;
+ $results = array();
+ foreach ( $messageNames as $key ) {
+ $customised = isset( $statuses['pages'][$key] );
+ if ( $customised ) {
+ $actual = wfMessage( $key )->inLanguage( $langCode )->plain();
+ $default = wfMessage( $key )->inLanguage( $langCode )->useDatabase( false )->plain();
+
+ $relevantPages++;
+ if ( $actual === $default ) {
+ $hasTalk = isset( $statuses['talks'][$key] );
+ $results[] = array(
+ 'title' => $key,
+ 'hasTalk' => $hasTalk,
+ );
+ $equalPages++;
+ if ( $hasTalk ) {
+ $equalPagesTalks++;
+ }
+ }
+ }
+ }
+
+ if ( $equalPages === 0 ) {
+ // No more equal messages left
+ $this->output( "done.\n" );
+ return;
+ }
+
+ $this->output( "\n{$relevantPages} pages in the MediaWiki namespace override messages." );
+ $this->output( "\n{$equalPages} pages are equal to the default message ({$equalPagesTalks} talk pages).\n" );
+
+ if ( !$doDelete ) {
+ $this->output( "\nRun the script again with --delete to delete these pages" );
+ if ( $equalPagesTalks !== 0 ) {
+ $this->output( " (include --delete-talk to also delete the talk pages)" );
+ }
+ $this->output( "\n" );
+ return;
+ }
+
+ $user = User::newFromName( 'MediaWiki default' );
+ if ( !$user ) {
+ $this->error( "Invalid username", true );
+ }
+ $wgUser = $user;
+
+ // Hide deletions from RecentChanges
+ $user->addGroup( 'bot' );
+
+ // Handle deletion
+ $this->output( "\n...deleting equal messages (this may take a long time!)...", 'msg' );
+ $dbw = wfGetDB( DB_MASTER );
+ foreach ( $results as $result ) {
+ wfWaitForSlaves();
+ $dbw->ping();
+ $dbw->begin( __METHOD__ );
+ $title = Title::makeTitle( NS_MEDIAWIKI, $result['title'] );
+ $page = WikiPage::factory( $title );
+ $error = ''; // Passed by ref
+ $page->doDeleteArticle( 'No longer required', false, 0, false, $error, $user );
+ if ( $result['hasTalk'] && $doDeleteTalk ) {
+ $title = Title::makeTitle( NS_MEDIAWIKI_TALK, $result['title'] );
+ $page = WikiPage::factory( $title );
+ $error = ''; // Passed by ref
+ $page->doDeleteArticle( 'Orphaned talk page of no longer required message', false, 0, false, $error, $user );
+ }
+ $dbw->commit( __METHOD__ );
+ }
+ $this->output( "done!\n", 'msg' );
+ }
+}
+
+$maintClass = "DeleteEqualMessages";
+require_once( RUN_MAINTENANCE_IF_MAIN );