private function getFederatedSignOnCerts()
  {
    $certs = null;
    if ($cache = $this->getCache()) {
      $cacheItem = $cache->getItem('federated_signon_certs_v3');
      $certs = $cacheItem->get();
    }


    if (!$certs) {
      $certs = $this->retrieveCertsFromLocation(
          self::FEDERATED_SIGNON_CERT_URL
      );

      if ($cache) {
        $cacheItem->expiresAt(new DateTime('+1 hour'));
        $cacheItem->set($certs);
        $cache->save($cacheItem);
      }
    }

    if (!isset($certs['keys'])) {
      throw new InvalidArgumentException(
          'federated sign-on certs expects "keys" to be set'
      );
    }

    return $certs['keys'];
  }
private function getFederatedSignOnCerts()
  {
    $certs = null;
    if ($cache = $this->getCache()) {
      $cacheItem = $cache->getItem('federated_signon_certs_v3');
      $certs = $cacheItem->get();
    }


    if (!$certs) {
      $certs = $this->retrieveCertsFromLocation(
          self::FEDERATED_SIGNON_CERT_URL
      );

      if ($cache) {
        $cacheItem->expiresAt(new DateTime('+1 hour'));
        $cacheItem->set($certs);
        $cache->save($cacheItem);
      }
    }

    if (!isset($certs['keys'])) {
      throw new InvalidArgumentException(
          'federated sign-on certs expects "keys" to be set'
      );
    }

    return $certs['keys'];
  }
private function getFederatedSignOnCerts ( ) { $ certs = null ; if ( $ cache = $ this -> getCache ( ) ) { $ cacheItem = $ cache -> getItem ( 'federated_signon_certs_v3' ) ; $ certs = $ cacheItem -> get ( ) ; } if ( ! $ certs ) { $ certs = $ this -> retrieveCertsFromLocation ( self :: FEDERATED_SIGNON_CERT_URL ) ; if ( $ cache ) { $ cacheItem -> expiresAt ( new DateTime ( '+1 hour' ) ) ; $ cacheItem -> set ( $ certs ) ; $ cache -> save ( $ cacheItem ) ; } } if ( ! isset ( $ certs [ 'keys' ] ) ) { throw new InvalidArgumentException ( 'federated sign-on certs expects "keys" to be set' ) ; } return $ certs [ 'keys' ] ; }
are PEM encoded certificates.
are PEM encoded certificates .