oauth2_server.module

<?php

/**
 * Implements hook_cron().
 */
function oauth2_server_cron() {
  // Delete expired tokens.
  $query = \Drupal::entityQuery('oauth2_server_token');
  $query->condition('expires', 0, '<>');
  $query->condition('expires', REQUEST_TIME, '<=');
  $result = $query->execute();
  if ($result) {
    // @todo, is there a method to delete without loading?
    $tokens = \Drupal::entityManager()->getStorage('oauth2_server_token')->loadMultiple(array_keys($result));
    \Drupal::entityManager()->getStorage('oauth2_server_token')->delete($tokens);
  }

  // Regenerate the keys once a day. Follows Google's practice described in
  // https://developers.google.com/accounts/docs/OAuth2Login#validatinganidtoken
  $needs_keys = \Drupal\oauth2_server\Utility::siteNeedsKeys();
  // No need to do anything if hook_cron() is invoked from simpletest.
  if ($needs_keys) {
    $last_generated = \Drupal::state()->get('oauth2_server.last_generated', 0);
    // Check if the keys were last generated more than 23h30min ago.
    if (REQUEST_TIME - $last_generated > 84600) {
      $keys = \Drupal\oauth2_server\Utility::generateKeys();
      \Drupal::state()->set('oauth2_server.keys', $keys);
      \Drupal::state()->set('oauth2_server.last_generated', REQUEST_TIME);
    }
  }
}