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<?php
namespace MediaWiki\Extension\AbuseFilter;
use MediaWiki\Extension\AbuseFilter\Consequences\ConsequencesRegistry;
use MediaWiki\Extension\AbuseFilter\Filter\ExistingFilter;
use MediaWiki\Extension\AbuseFilter\Special\SpecialAbuseFilter;
use MediaWiki\Extension\Notifications\Model\Event;
use MediaWiki\Title\Title;
/**
* Helper service for EmergencyWatcher to notify filter maintainers of throttled filters
* @todo DI not possible due to Echo
*/
class EchoNotifier {
public const SERVICE_NAME = 'AbuseFilterEchoNotifier';
public const EVENT_TYPE = 'throttled-filter';
/** @var FilterLookup */
private $filterLookup;
/** @var ConsequencesRegistry */
private $consequencesRegistry;
/** @var bool */
private $isEchoLoaded;
/**
* @param FilterLookup $filterLookup
* @param ConsequencesRegistry $consequencesRegistry
* @param bool $isEchoLoaded
*/
public function __construct(
FilterLookup $filterLookup,
ConsequencesRegistry $consequencesRegistry,
bool $isEchoLoaded
) {
$this->filterLookup = $filterLookup;
$this->consequencesRegistry = $consequencesRegistry;
$this->isEchoLoaded = $isEchoLoaded;
}
/**
* @param int $filter
* @return Title
*/
private function getTitleForFilter( int $filter ): Title {
return SpecialAbuseFilter::getTitleForSubpage( (string)$filter );
}
/**
* @param int $filter
* @return ExistingFilter
*/
private function getFilterObject( int $filter ): ExistingFilter {
return $this->filterLookup->getFilter( $filter, false );
}
/**
* @internal
* @param int $filter
* @return array
*/
public function getDataForEvent( int $filter ): array {
$filterObj = $this->getFilterObject( $filter );
$throttledActionNames = array_intersect(
$filterObj->getActionsNames(),
$this->consequencesRegistry->getDangerousActionNames()
);
return [
'type' => self::EVENT_TYPE,
'title' => $this->getTitleForFilter( $filter ),
'extra' => [
'user' => $filterObj->getUserID(),
'throttled-actions' => $throttledActionNames,
],
];
}
/**
* Send notification about a filter being throttled
*
* @param int $filter
* @return Event|false
*/
public function notifyForFilter( int $filter ) {
if ( $this->isEchoLoaded ) {
return Event::create( $this->getDataForEvent( $filter ) );
}
return false;
}
}