/**
* Constructor for SAML 2 response messages.
*
* @param string $tagName The tag name of the root element.
* @param DOMElement|NULL $xml The input message.
*/
protected function __construct($tagName, DOMElement $xml = NULL)
{
parent::__construct($tagName, $xml);
$this->status = array('Code' => SAML2_Const::STATUS_SUCCESS, 'SubCode' => NULL, 'Message' => NULL);
if ($xml === NULL) {
return;
}
if ($xml->hasAttribute('InResponseTo')) {
$this->inResponseTo = $xml->getAttribute('InResponseTo');
}
$status = SAML2_Utils::xpQuery($xml, './saml_protocol:Status');
if (empty($status)) {
throw new Exception('Missing status code on response.');
}
$status = $status[0];
$statusCode = SAML2_Utils::xpQuery($status, './saml_protocol:StatusCode');
if (empty($statusCode)) {
throw new Exception('Missing status code in status element.');
}
$statusCode = $statusCode[0];
$this->status['Code'] = $statusCode->getAttribute('Value');
$subCode = SAML2_Utils::xpQuery($statusCode, './saml_protocol:StatusCode');
if (!empty($subCode)) {
$this->status['SubCode'] = $subCode[0]->getAttribute('Value');
}
$message = SAML2_Utils::xpQuery($status, './saml_protocol:StatusMessage');
if (!empty($message)) {
$this->status['Message'] = trim($message[0]->textContent);
}
}
