function testOne()
{
$doc = new \DOMDocument();
$doc->load(__DIR__ . '/../../../../../../../resources/sample/Response/response01.xml');
$xpath = new \DOMXPath($doc);
$xpath->registerNamespace('samlp', Protocol::SAML2);
$xpath->registerNamespace('ds', Protocol::NS_XMLDSIG);
$xpath->registerNamespace('a', Protocol::NS_ASSERTION);
$list = $xpath->query('/samlp:Response/a:Assertion/ds:Signature');
$this->assertEquals(1, $list->length);
/** @var $signatureNode \DOMElement */
$signatureNode = $list->item(0);
$signatureValidator = new SignatureXmlValidator();
$signatureValidator->loadFromXml($signatureNode);
$list = $xpath->query('./ds:KeyInfo/ds:X509Data/ds:X509Certificate', $signatureNode);
$this->assertEquals(1, $list->length);
/** @var $signatureNode \DOMElement */
$certificateDataNode = $list->item(0);
$certData = $certificateDataNode->textContent;
$certificate = new X509Certificate();
$certificate->setData($certData);
$key = KeyHelper::createPublicKey($certificate);
$ok = $signatureValidator->validate($key);
$this->assertTrue($ok);
}
private function verifySignature($xml)
{
$doc = new \DOMDocument();
$doc->loadXML($xml);
$xpath = new \DOMXPath($doc);
$xpath->registerNamespace('ds', Protocol::NS_XMLDSIG);
$list = $xpath->query('/root/ds:Signature');
$this->assertEquals(1, $list->length);
/** @var $signatureNode \DOMElement */
$signatureNode = $list->item(0);
$signatureValidator = new SignatureXmlValidator();
$signatureValidator->loadFromXml($signatureNode);
$certificate = new X509Certificate();
$certificate->loadFromFile(__DIR__ . '/../../../../../../../resources/sample/Certificate/saml.crt');
$key = KeyHelper::createPublicKey($certificate);
$ok = $signatureValidator->validate($key);
$this->assertTrue($ok);
}