function __doRequest($request, $location, $saction, $version)
 {
     $doc = new DOMDocument('1.0');
     $doc->loadXML($request);
     $objWSSE = new WSSESoap($doc);
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     $objKey->loadKey(PRIVATE_KEY, TRUE);
     $options = array("insertBefore" => TRUE);
     $objWSSE->signSoapDoc($objKey, $options);
     $objWSSE->addIssuerSerial(CERT_FILE);
     $objKey = new XMLSecurityKey(XMLSecurityKey::AES256_CBC);
     $objKey->generateSessionKey();
     #está wea está rara, no pasa el wsdl y cambía el puerto o.O
     $location = "https://201.238.207.130:7200/WSWebpayTransaction/cxf/WSWebpayService?wsdl";
     #die($location);
     #die(CERT_FILE." ".PRIVATE_KEY);
     $retVal = parent::__doRequest($objWSSE->saveXML(), $location, $saction, $version);
     $doc = new DOMDocument();
     $doc->loadXML($retVal);
     return $doc->saveXML();
     /*
     if ($this->useSSL){ 
             $locationparts = parse_url($location); 
             $location = 'https://'; 
             if(isset($locationparts['host']))  $location .= $locationparts['host']; 
             if(isset($locationparts['port']))  $location .= ':'.$locationparts['port']; 
             if(isset($locationparts['path']))  $location .= $locationparts['path']; 
             if(isset($locationparts['query'])) $location .= '?'.$locationparts['query']; 
     }
     
     $doc = new DOMDocument('1.0'); 
     $doc->loadXML($request); 
     
     $objWSSE = new WSSESoap($doc); 
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1,array('type' => 'private')); 
     $objKey->loadKey(PRIVATE_KEY, TRUE);
     
     $options = array("insertBefore" => TRUE); 
     
     $objWSSE->signSoapDoc($objKey, $options); 
     $objWSSE->addIssuerSerial(CERT_FILE);
     
     $objKey = new XMLSecurityKey(XMLSecurityKey::AES256_CBC); 
     $objKey->generateSessionKey(); 
     
     $retVal = parent::__doRequest($objWSSE->saveXML(), $location, $saction, $version); 
     
     $doc = new DOMDocument(); 
     $doc->loadXML($retVal); 
     return $doc->saveXML(); 
     */
 }