Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/user/src/EventSubscriber/UserRequestSubscriber.php

@@ -0,0 +1,75 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\user\EventSubscriber\UserRequestSubscriber.
+ */
+
+namespace Drupal\user\EventSubscriber;
+
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\Site\Settings;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpKernel\Event\PostResponseEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+/**
+ * Updates the current user's last access time.
+ */
+class UserRequestSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The current account.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  protected $account;
+
+  /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * Constructs a new UserRequestSubscriber.
+   *
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The current user.
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   */
+  public function __construct(AccountInterface $account, EntityManagerInterface $entity_manager) {
+    $this->account = $account;
+    $this->entityManager = $entity_manager;
+  }
+
+  /**
+   * Updates the current user's last access time.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\PostResponseEvent $event
+   *   The event to process.
+   */
+  public function onKernelTerminate(PostResponseEvent $event) {
+    if ($this->account->isAuthenticated() && REQUEST_TIME - $this->account->getLastAccessedTime() > Settings::get('session_write_interval', 180)) {
+      // Do that no more than once per 180 seconds.
+      /** @var \Drupal\user\UserStorageInterface $storage */
+      $storage = $this->entityManager->getStorage('user');
+      $storage->updateLastAccessTimestamp($this->account, REQUEST_TIME);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    // Should go before other subscribers start to write their caches. Notably
+    // before \Drupal\Core\EventSubscriber\KernelDestructionSubscriber to
+    // prevent instantiation of destructed services.
+    $events[KernelEvents::TERMINATE][] = ['onKernelTerminate', 300];
+    return $events;
+  }
+
+}