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<?php
namespace Drupal\user;
use Drupal\user\Event\UserEvents;
use Drupal\user\Event\UserFloodEvent;
use Drupal\Core\Flood\FloodInterface;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpFoundation\RequestStack;
/**
* User Flood Control service.
*
* @see: \Drupal\Core\Flood\DatabaseBackend
*/
class UserFloodControl implements UserFloodControlInterface {
/**
* The decorated flood service.
*
* @var \Drupal\Core\Flood\FloodInterface
*/
protected $flood;
/**
* Event dispatcher.
*
* @var \Symfony\Contracts\EventDispatcher\EventDispatcherInterface
*/
protected $eventDispatcher;
/**
* The request stack.
*
* @var \Symfony\Component\HttpFoundation\RequestStack
*/
protected $requestStack;
/**
* Construct the UserFloodControl.
*
* @param \Drupal\Core\Flood\FloodInterface $flood
* The flood service.
* @param \Symfony\Contracts\EventDispatcher\EventDispatcherInterface $event_dispatcher
* The event dispatcher service.
* @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
* The request stack used to retrieve the current request.
*/
public function __construct(FloodInterface $flood, EventDispatcherInterface $event_dispatcher, RequestStack $request_stack) {
$this->flood = $flood;
$this->eventDispatcher = $event_dispatcher;
$this->requestStack = $request_stack;
}
/**
* {@inheritdoc}
*/
public function isAllowed($name, $threshold, $window = 3600, $identifier = NULL) {
if ($this->flood->isAllowed($name, $threshold, $window, $identifier)) {
return TRUE;
}
// Register flood control blocked login event.
$event_map['user.failed_login_ip'] = UserEvents::FLOOD_BLOCKED_IP;
$event_map['user.failed_login_user'] = UserEvents::FLOOD_BLOCKED_USER;
$event_map['user.http_login'] = UserEvents::FLOOD_BLOCKED_USER;
if (isset($event_map[$name])) {
if (empty($identifier)) {
$identifier = $this->requestStack->getCurrentRequest()->getClientIp();
}
$event = new UserFloodEvent($name, $threshold, $window, $identifier);
$this->eventDispatcher->dispatch($event, $event_map[$name]);
}
return FALSE;
}
/**
* {@inheritdoc}
*/
public function register($name, $window = 3600, $identifier = NULL) {
return $this->flood->register($name, $window, $identifier);
}
/**
* {@inheritdoc}
*/
public function clear($name, $identifier = NULL) {
return $this->flood->clear($name, $identifier);
}
/**
* {@inheritdoc}
*/
public function garbageCollection() {
return $this->flood->garbageCollection();
}
}
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