/**
* Get and encrypt token from session store.
*
* @return null|string
*/
protected function getSessionToken()
{
$token = null;
if ($session = $this->app->__get('session')) {
$token = $session->token();
}
if ($encrypter = $this->app->__get('encrypter')) {
$token = $encrypter->encrypt($token);
}
return $token;
}
