/**
* Extract the response element from the SOAP response.
*
* @param string $soapResponse The SOAP response.
* @return string The <saml1p:Response> element, as a string.
*/
private static function extractResponse($soapResponse)
{
assert('is_string($soapResponse)');
try {
$doc = SAML2_DOMDocumentFactory::fromString($soapResponse);
} catch (\Exception $e) {
throw new SimpleSAML_Error_Exception('Error parsing SAML 1 artifact response.');
}
$soapEnvelope = $doc->firstChild;
if (!SimpleSAML\Utils\XML::isDOMElementOfType($soapEnvelope, 'Envelope', 'http://schemas.xmlsoap.org/soap/envelope/')) {
throw new SimpleSAML_Error_Exception('Expected artifact response to contain a <soap:Envelope> element.');
}
$soapBody = SimpleSAML\Utils\XML::getDOMChildren($soapEnvelope, 'Body', 'http://schemas.xmlsoap.org/soap/envelope/');
if (count($soapBody) === 0) {
throw new SimpleSAML_Error_Exception('Couldn\'t find <soap:Body> in <soap:Envelope>.');
}
$soapBody = $soapBody[0];
$responseElement = SimpleSAML\Utils\XML::getDOMChildren($soapBody, 'Response', 'urn:oasis:names:tc:SAML:1.0:protocol');
if (count($responseElement) === 0) {
throw new SimpleSAML_Error_Exception('Couldn\'t find <saml1p:Response> in <soap:Body>.');
}
$responseElement = $responseElement[0];
/*
* Save the <saml1p:Response> element. Note that we need to import it
* into a new document, in order to preserve namespace declarations.
*/
$newDoc = SAML2_DOMDocumentFactory::create();
$newDoc->appendChild($newDoc->importNode($responseElement, TRUE));
$responseXML = $newDoc->saveXML();
return $responseXML;
}
/**
* This function locates the EntityDescriptor node in a DOMDocument. This node should
* be the first (and only) node in the document.
*
* This function will throw an exception if it is unable to locate the node.
*
* @param DOMDocument $doc The DOMDocument where we should find the EntityDescriptor node.
*
* @return SAML2_XML_md_EntityDescriptor The DOMEntity which represents the EntityDescriptor.
* @throws Exception If the document is empty or the first element is not an EntityDescriptor element.
*/
private static function findEntityDescriptor($doc)
{
assert('$doc instanceof DOMDocument');
// find the EntityDescriptor DOMElement. This should be the first (and only) child of the DOMDocument
$ed = $doc->documentElement;
if ($ed === null) {
throw new Exception('Failed to load SAML metadata from empty XML document.');
}
if (SimpleSAML\Utils\XML::isDOMElementOfType($ed, 'EntityDescriptor', '@md') === false) {
throw new Exception('Expected first element in the metadata document to be an EntityDescriptor element.');
}
return new SAML2_XML_md_EntityDescriptor($ed);
}
/**
* @deprecated This method will be removed in SSP 2.0. Please use SimpleSAML\Utils\XML::isDOMElementOfType() instead.
*/
public static function isDOMElementOfType(DOMNode $element, $name, $nsURI)
{
return SimpleSAML\Utils\XML::isDOMElementOfType($element, $name, $nsURI);
}
