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<?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->mDescription = "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 $wgLocalDatabases, $wgUser;
$username = wfMessage( 'spambot_username' )->text();
$wgUser = User::newFromName( $username );
if ( !$wgUser ) {
$this->error( "Invalid username specified in 'spambot_username' message: $username", true );
}
// Create the user if necessary
if ( !$wgUser->getId() ) {
$wgUser->addToDatabase();
}
$spec = $this->getArg();
$like = LinkFilter::makeLikeArray( $spec );
if ( !$like ) {
$this->error( "Not a valid hostname specification: $spec", true );
}
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 = wfGetDB( DB_SLAVE, array(), $wikiID );
$count = $dbr->selectField( 'externallinks', 'COUNT(*)',
array( 'el_index' . $dbr->buildLike( $like ) ), __METHOD__ );
if ( $count ) {
$found = true;
passthru( "php cleanupSpam.php --wiki='$wikiID' $spec | sed 's/^/$wikiID: /'" );
}
}
if ( $found ) {
$this->output( "All done\n" );
} else {
$this->output( "None found\n" );
}
} else {
// Clean up spam on this wiki
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( 'externallinks', array( 'DISTINCT el_from' ),
array( '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 = wfGetDB( DB_MASTER );
$dbw->begin( __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, $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() );
}
$dbw->commit( __METHOD__ );
}
}
}
$maintClass = "CleanupSpam";
require_once RUN_MAINTENANCE_IF_MAIN;
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