diff options
Diffstat (limited to 'www/wiki/maintenance/cleanupSpam.php')
| -rw-r--r-- | www/wiki/maintenance/cleanupSpam.php | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/www/wiki/maintenance/cleanupSpam.php b/www/wiki/maintenance/cleanupSpam.php new file mode 100644 index 00000000..038b28ce --- /dev/null +++ b/www/wiki/maintenance/cleanupSpam.php @@ -0,0 +1,160 @@ +<?php +/** + * Cleanup all spam from a given hostname. + * + * 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 to cleanup all spam from a given hostname. + * + * @ingroup Maintenance + */ +class CleanupSpam extends Maintenance { + + public function __construct() { + parent::__construct(); + $this->addDescription( 'Cleanup all spam from a given hostname' ); + $this->addOption( 'all', 'Check all wikis in $wgLocalDatabases' ); + $this->addOption( 'delete', 'Delete pages containing only spam instead of blanking them' ); + $this->addArg( + 'hostname', + 'Hostname that was spamming, single * wildcard in the beginning allowed' + ); + } + + public function execute() { + global $IP, $wgLocalDatabases, $wgUser; + + $username = wfMessage( 'spambot_username' )->text(); + $wgUser = User::newSystemUser( $username ); + if ( !$wgUser ) { + $this->fatalError( "Invalid username specified in 'spambot_username' message: $username" ); + } + // Hack: Grant bot rights so we don't flood RecentChanges + $wgUser->addGroup( 'bot' ); + + $spec = $this->getArg(); + $like = LinkFilter::makeLikeArray( $spec ); + if ( !$like ) { + $this->fatalError( "Not a valid hostname specification: $spec" ); + } + + if ( $this->hasOption( 'all' ) ) { + // Clean up spam on all wikis + $this->output( "Finding spam on " . count( $wgLocalDatabases ) . " wikis\n" ); + $found = false; + foreach ( $wgLocalDatabases as $wikiID ) { + $dbr = $this->getDB( DB_REPLICA, [], $wikiID ); + + $count = $dbr->selectField( 'externallinks', 'COUNT(*)', + [ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ ); + if ( $count ) { + $found = true; + $cmd = wfShellWikiCmd( "$IP/maintenance/cleanupSpam.php", + [ '--wiki', $wikiID, $spec ] ); + passthru( "$cmd | sed 's/^/$wikiID: /'" ); + } + } + if ( $found ) { + $this->output( "All done\n" ); + } else { + $this->output( "None found\n" ); + } + } else { + // Clean up spam on this wiki + + $dbr = $this->getDB( DB_REPLICA ); + $res = $dbr->select( 'externallinks', [ 'DISTINCT el_from' ], + [ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ ); + $count = $dbr->numRows( $res ); + $this->output( "Found $count articles containing $spec\n" ); + foreach ( $res as $row ) { + $this->cleanupArticle( $row->el_from, $spec ); + } + if ( $count ) { + $this->output( "Done\n" ); + } + } + } + + private function cleanupArticle( $id, $domain ) { + $title = Title::newFromID( $id ); + if ( !$title ) { + $this->error( "Internal error: no page for ID $id" ); + + return; + } + + $this->output( $title->getPrefixedDBkey() . " ..." ); + $rev = Revision::newFromTitle( $title ); + $currentRevId = $rev->getId(); + + while ( $rev && ( $rev->isDeleted( Revision::DELETED_TEXT ) + || LinkFilter::matchEntry( $rev->getContent( Revision::RAW ), $domain ) ) + ) { + $rev = $rev->getPrevious(); + } + + if ( $rev && $rev->getId() == $currentRevId ) { + // The regex didn't match the current article text + // This happens e.g. when a link comes from a template rather than the page itself + $this->output( "False match\n" ); + } else { + $dbw = $this->getDB( DB_MASTER ); + $this->beginTransaction( $dbw, __METHOD__ ); + $page = WikiPage::factory( $title ); + if ( $rev ) { + // Revert to this revision + $content = $rev->getContent( Revision::RAW ); + + $this->output( "reverting\n" ); + $page->doEditContent( + $content, + wfMessage( 'spam_reverting', $domain )->inContentLanguage()->text(), + EDIT_UPDATE | EDIT_FORCE_BOT, + $rev->getId() + ); + } elseif ( $this->hasOption( 'delete' ) ) { + // Didn't find a non-spammy revision, blank the page + $this->output( "deleting\n" ); + $page->doDeleteArticle( + wfMessage( 'spam_deleting', $domain )->inContentLanguage()->text() + ); + } else { + // Didn't find a non-spammy revision, blank the page + $handler = ContentHandler::getForTitle( $title ); + $content = $handler->makeEmptyContent(); + + $this->output( "blanking\n" ); + $page->doEditContent( + $content, + wfMessage( 'spam_blanking', $domain )->inContentLanguage()->text(), + EDIT_UPDATE | EDIT_FORCE_BOT + ); + } + $this->commitTransaction( $dbw, __METHOD__ ); + } + } +} + +$maintClass = CleanupSpam::class; +require_once RUN_MAINTENANCE_IF_MAIN; |