212 lines
6.0 KiB
PHP
212 lines
6.0 KiB
PHP
<?php
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/**
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* Cleanup all spam from a given hostname.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Permissions\Authority;
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use MediaWiki\Revision\RevisionRecord;
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use MediaWiki\Revision\SlotRecord;
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Maintenance script to cleanup all spam from a given hostname.
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*
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* @ingroup Maintenance
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*/
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class CleanupSpam extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Cleanup all spam from a given hostname' );
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$this->addOption( 'all', 'Check all wikis in $wgLocalDatabases' );
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$this->addOption( 'delete', 'Delete pages containing only spam instead of blanking them' );
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$this->addArg(
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'hostname',
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'Hostname that was spamming, single * wildcard in the beginning allowed'
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);
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}
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public function execute() {
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global $IP, $wgLocalDatabases;
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$username = wfMessage( 'spambot_username' )->text();
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$user = User::newSystemUser( $username );
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if ( !$user ) {
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$this->fatalError( "Invalid username specified in 'spambot_username' message: $username" );
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}
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// Hack: Grant bot rights so we don't flood RecentChanges
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MediaWikiServices::getInstance()->getUserGroupManager()->addUserToGroup( $user, 'bot' );
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StubGlobalUser::setUser( $user );
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$spec = $this->getArg( 0 );
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$protConds = [];
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foreach ( [ 'http://', 'https://' ] as $prot ) {
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$conds = LinkFilter::getQueryConditions( $spec, [ 'protocol' => $prot ] );
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if ( !$conds ) {
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$this->fatalError( "Not a valid hostname specification: $spec" );
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}
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$protConds[$prot] = $conds;
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}
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if ( $this->hasOption( 'all' ) ) {
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// Clean up spam on all wikis
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$this->output( "Finding spam on " . count( $wgLocalDatabases ) . " wikis\n" );
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$found = false;
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foreach ( $wgLocalDatabases as $wikiId ) {
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/** @var Database $dbr */
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$dbr = $this->getDB( DB_REPLICA, [], $wikiId );
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foreach ( $protConds as $conds ) {
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$count = $dbr->selectField(
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'externallinks',
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'COUNT(*)',
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$conds,
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__METHOD__
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);
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if ( $count ) {
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$found = true;
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$cmd = wfShellWikiCmd(
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"$IP/maintenance/cleanupSpam.php",
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[ '--wiki', $wikiId, $spec ]
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);
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passthru( "$cmd | sed 's/^/$wikiId: /'" );
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}
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}
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}
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if ( $found ) {
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$this->output( "All done\n" );
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} else {
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$this->output( "None found\n" );
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}
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} else {
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// Clean up spam on this wiki
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$count = 0;
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/** @var Database $dbr */
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$dbr = $this->getDB( DB_REPLICA );
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foreach ( $protConds as $prot => $conds ) {
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$res = $dbr->select(
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'externallinks',
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[ 'DISTINCT el_from' ],
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$conds,
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__METHOD__
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);
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$count = $dbr->numRows( $res );
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$this->output( "Found $count articles containing $spec\n" );
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foreach ( $res as $row ) {
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$this->cleanupArticle(
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$row->el_from,
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$spec,
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$prot,
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$user
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);
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}
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}
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if ( $count ) {
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$this->output( "Done\n" );
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}
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}
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}
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/**
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* @param int $id
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* @param string $domain
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* @param string $protocol
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* @param Authority $performer
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* @throws MWException
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*/
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private function cleanupArticle( $id, $domain, $protocol, Authority $performer ) {
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$title = Title::newFromID( $id );
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if ( !$title ) {
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$this->error( "Internal error: no page for ID $id" );
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return;
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}
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$this->output( $title->getPrefixedDBkey() . " ..." );
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$services = MediaWikiServices::getInstance();
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$revLookup = $services->getRevisionLookup();
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$rev = $revLookup->getRevisionByTitle( $title );
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$currentRevId = $rev->getId();
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while ( $rev && ( $rev->isDeleted( RevisionRecord::DELETED_TEXT ) ||
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LinkFilter::matchEntry(
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$rev->getContent( SlotRecord::MAIN, RevisionRecord::RAW ),
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$domain,
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$protocol
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) )
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) {
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$rev = $revLookup->getPreviousRevision( $rev );
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}
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if ( $rev && $rev->getId() == $currentRevId ) {
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// The regex didn't match the current article text
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// This happens e.g. when a link comes from a template rather than the page itself
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$this->output( "False match\n" );
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} else {
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$dbw = $this->getDB( DB_PRIMARY );
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$this->beginTransaction( $dbw, __METHOD__ );
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$page = $services->getWikiPageFactory()->newFromTitle( $title );
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if ( $rev ) {
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// Revert to this revision
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$content = $rev->getContent( SlotRecord::MAIN, RevisionRecord::RAW );
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$this->output( "reverting\n" );
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$page->doUserEditContent(
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$content,
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$performer,
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wfMessage( 'spam_reverting', $domain )->inContentLanguage()->text(),
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EDIT_UPDATE | EDIT_FORCE_BOT,
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$rev->getId()
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);
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} elseif ( $this->hasOption( 'delete' ) ) {
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// Didn't find a non-spammy revision, blank the page
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$this->output( "deleting\n" );
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$page->doDeleteArticleReal(
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wfMessage( 'spam_deleting', $domain )->inContentLanguage()->text(),
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$performer->getUser()
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);
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} else {
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// Didn't find a non-spammy revision, blank the page
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$handler = $services->getContentHandlerFactory()
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->getContentHandler( $title->getContentModel() );
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$content = $handler->makeEmptyContent();
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$this->output( "blanking\n" );
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$page->doUserEditContent(
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$content,
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$performer,
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wfMessage( 'spam_blanking', $domain )->inContentLanguage()->text(),
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EDIT_UPDATE | EDIT_FORCE_BOT
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);
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}
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$this->commitTransaction( $dbw, __METHOD__ );
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}
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}
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}
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$maintClass = CleanupSpam::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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