/**
* @return string
*/
public function getClientIp()
{
$clientIp = $this->_request->getClientIp();
if (strpos($clientIp, ',') !== false) {
// more than one ip given (due to proxy) -> normalize ip
list($firstIp, ) = explode(',', (string) $clientIp, 2);
$clientIp = trim($firstIp);
}
return $clientIp;
}