/**
  * return an array with data for the session info element
  * @return array
  */
 public function getSessionInfo()
 {
     /**
      * @var Mage_Customer_Model_Session $session
      * @var Mage_Log_Model_Visitor $visitorLog
      */
     $session = $this->_getCustomerSession();
     $sessionId = $session->getEncryptedSessionId();
     $visitorLog = $this->_visitorLog->load($sessionId, 'session_id');
     return array('encrypted_session_id' => hash('sha256', $sessionId), 'last_login' => $this->_getLastLoginTime($session, $visitorLog), 'order_source' => $this->_getOrderSource(), 'rtc_transaction_response_code' => null, 'rtc_reason_codes' => null, 'time_on_file' => null, 'time_spent_on_site' => $this->_getTimeSpentOnSite($visitorLog));
 }