public function validate(SAML2_Response $response, SAML2_Response_Validation_Result $result)
{
$destination = $response->getDestination();
if (!$this->expectedDestination->equals(new SAML2_Configuration_Destination($destination))) {
$result->addError(sprintf('Destination in response "%s" does not match the expected destination "%s"', $destination, $this->expectedDestination));
}
}
/**
* @param SAML2_Response $response
* @param SimpleSAML_Configuration $idpConfig
*/
private function addSigns(SAML2_Response $response, SimpleSAML_Configuration $idpConfig)
{
$assertions = $response->getAssertions();
$className = EngineBlock_ApplicationSingleton::getInstance()->getDiContainer()->getMessageUtilClassName();
// Special case the 'normal' message verification class name so we have IDE support.
if ($className === 'sspmod_saml_Message') {
sspmod_saml_Message::addSign($idpConfig, SimpleSAML_Configuration::loadFromArray(array()), $assertions[0]);
return;
}
$className::addSign($idpConfig, SimpleSAML_Configuration::loadFromArray(array()), $assertions[0]);
}
public function setUp()
{
$this->request = new EngineBlock_Saml2_AuthnRequestAnnotationDecorator(new SAML2_AuthnRequest());
$assertion = new SAML2_Assertion();
$assertion->setAttributes(array());
$response = new SAML2_Response();
$response->setAssertions(array($assertion));
$response = new EngineBlock_Saml2_ResponseAnnotationDecorator($response);
$response->setIntendedNameId('urn:collab:person:example.edu:mock1');
$this->response = $response;
$this->serviceProvider = new ServiceProvider('http://sp.example.edu');
$this->collabPersonId = 'urn:collab:person:example.edu:mock1';
$this->resolver = new EngineBlock_Test_Saml2_NameIdResolverMock();
}
/**
* @test
* @group signature
*/
public function signed_message_with_valid_signature_is_validated_correctly()
{
$pattern = SAML2_Utilities_Certificate::CERTIFICATE_PATTERN;
preg_match($pattern, SAML2_CertificatesMock::PUBLIC_KEY_PEM, $matches);
$config = new SAML2_Configuration_IdentityProvider(array('certificateData' => $matches[1]));
$validator = new SAML2_Signature_PublicKeyValidator(new SAML2_SimpleTestLogger(), new SAML2_Certificate_KeyLoader());
$doc = SAML2_DOMDocumentFactory::fromFile(__DIR__ . '/response.xml');
$response = new SAML2_Response($doc->firstChild);
$response->setSignatureKey(SAML2_CertificatesMock::getPrivateKey());
$response->setCertificates(array(SAML2_CertificatesMock::PUBLIC_KEY_PEM));
// convert to signed response
$response = new SAML2_Response($response->toSignedXML());
$this->assertTrue($validator->canValidate($response, $config), 'Cannot validate the element');
$this->assertTrue($validator->hasValidSignature($response, $config), 'The signature is not valid');
}
public function testMarshalling()
{
$response = new SAML2_Response();
$response->setStatus(array('Code' => 'OurStatusCode', 'SubCode' => 'OurSubStatusCode', 'Message' => 'OurMessageText'));
$responseElement = $response->toUnsignedXML();
$statusElements = SAML2_Utils::xpQuery($responseElement, './saml_protocol:Status');
$this->assertCount(1, $statusElements);
$statusCodeElements = SAML2_Utils::xpQuery($statusElements[0], './saml_protocol:StatusCode');
$this->assertCount(1, $statusCodeElements);
$this->assertEquals('OurStatusCode', $statusCodeElements[0]->getAttribute("Value"));
$nestedStatusCodeElements = SAML2_Utils::xpQuery($statusCodeElements[0], './saml_protocol:StatusCode');
$this->assertCount(1, $nestedStatusCodeElements);
$this->assertEquals('OurSubStatusCode', $nestedStatusCodeElements[0]->getAttribute("Value"));
$statusMessageElements = SAML2_Utils::xpQuery($statusElements[0], './saml_protocol:StatusMessage');
$this->assertCount(1, $statusMessageElements);
$this->assertEquals('OurMessageText', $statusMessageElements[0]->textContent);
}
/**
* @test
* @group signature
*/
public function signed_message_with_valid_signature_is_validated_correctly()
{
$pattern = SAML2_Utilities_Certificate::CERTIFICATE_PATTERN;
preg_match($pattern, SAML2_CertificatesMock::PUBLIC_KEY_PEM, $matches);
$certdata = SAML2_Certificate_X509::createFromCertificateData($matches[1]);
$fingerprint = $certdata->getFingerprint();
$fingerprint_retry = $certdata->getFingerprint();
$this->assertTrue($fingerprint->equals($fingerprint_retry), 'Cached fingerprint does not match original');
$config = new SAML2_Configuration_IdentityProvider(array('certificateFingerprints' => array($fingerprint->getRaw())));
$validator = new SAML2_Signature_FingerprintValidator(new SAML2_SimpleTestLogger(), new SAML2_Certificate_FingerprintLoader());
$doc = SAML2_DOMDocumentFactory::fromFile(__DIR__ . '/response.xml');
$response = new SAML2_Response($doc->firstChild);
$response->setSignatureKey(SAML2_CertificatesMock::getPrivateKey());
$response->setCertificates(array(SAML2_CertificatesMock::PUBLIC_KEY_PEM));
// convert to signed response
$response = new SAML2_Response($response->toSignedXML());
$this->assertTrue($validator->canValidate($response, $config), 'Cannot validate the element');
$this->assertTrue($validator->hasValidSignature($response, $config), 'The signature is not valid');
}
/**
* @param string $samlMessageXml
* @param string $class
* @return SAML_Message
*/
public function deserialize($samlMessageXml, $class)
{
$elementName = $this->getElementForClass($class);
$document = new DOMDocument();
$document->loadXML($samlMessageXml);
$messageDomElement = $document->getElementsByTagNameNs('urn:oasis:names:tc:SAML:2.0:protocol', $elementName)->item(0);
if ($class === 'SAML2_AuthnRequest') {
return SAML2_AuthnRequest::fromXML($messageDomElement);
} else {
if ($class === 'SAML2_Response') {
return SAML2_Response::fromXML($messageDomElement);
}
}
throw new EngineBlock_Exception('Unknown message type for deserialization?');
}
/**
* @return EngineBlock_Corto_Module_Bindings
*/
private function mockBindingsModule()
{
$spRequest = new SAML2_AuthnRequest();
$spRequest->setId('SPREQUEST');
$spRequest->setIssuer('testSp');
$spRequest = new EngineBlock_Saml2_AuthnRequestAnnotationDecorator($spRequest);
$ebRequest = new SAML2_AuthnRequest();
$ebRequest->setId('EBREQUEST');
$ebRequest = new EngineBlock_Saml2_AuthnRequestAnnotationDecorator($ebRequest);
$dummyLog = new Psr\Log\NullLogger();
$authnRequestRepository = new EngineBlock_Saml2_AuthnRequestSessionRepository($dummyLog);
$authnRequestRepository->store($spRequest);
$authnRequestRepository->store($ebRequest);
$authnRequestRepository->link($ebRequest, $spRequest);
$assertion = new SAML2_Assertion();
$assertion->setAttributes(array('urn:org:openconext:corto:internal:sp-entity-id' => array('testSp'), 'urn:mace:dir:attribute-def:cn' => array(null)));
$responseFixture = new SAML2_Response();
$responseFixture->setInResponseTo('EBREQUEST');
$responseFixture->setAssertions(array($assertion));
$responseFixture = new EngineBlock_Saml2_ResponseAnnotationDecorator($responseFixture);
$responseFixture->setOriginalIssuer('testIdP');
// Mock bindings module
/** @var EngineBlock_Corto_Module_Bindings $bindingsModuleMock */
$bindingsModuleMock = Phake::mock('EngineBlock_Corto_Module_Bindings');
Phake::when($bindingsModuleMock)->receiveResponse()->thenReturn($responseFixture);
return $bindingsModuleMock;
}
}
/* Filter which attribute values we should return. */
$returnAttributes[$name] = array_intersect($values, $attributes[$name]);
}
}
/* $returnAttributes contains the attributes we should return. Send them. */
$assertion = new SAML2_Assertion();
$assertion->setIssuer($idpEntityId);
$assertion->setNameId($query->getNameId());
$assertion->setNotBefore(time());
$assertion->setNotOnOrAfter(time() + 5 * 60);
$assertion->setValidAudiences(array($spEntityId));
$assertion->setAttributes($returnAttributes);
$assertion->setAttributeNameFormat($attributeNameFormat);
$sc = new SAML2_XML_saml_SubjectConfirmation();
$sc->Method = SAML2_Const::CM_BEARER;
$sc->SubjectConfirmationData = new SAML2_XML_saml_SubjectConfirmationData();
$sc->SubjectConfirmationData->NotOnOrAfter = time() + 5 * 60;
$sc->SubjectConfirmationData->Recipient = $endpoint;
$sc->SubjectConfirmationData->InResponseTo = $query->getId();
$assertion->setSubjectConfirmation(array($sc));
sspmod_saml_Message::addSign($idpMetadata, $spMetadata, $assertion);
$response = new SAML2_Response();
$response->setRelayState($query->getRelayState());
$response->setDestination($endpoint);
$response->setIssuer($idpEntityId);
$response->setInResponseTo($query->getId());
$response->setAssertions(array($assertion));
sspmod_saml_Message::addSign($idpMetadata, $spMetadata, $response);
$binding = new SAML2_HTTPPost();
$binding->send($response);
/**
* Process a response message.
*
* If the response is an error response, we will throw a sspmod_saml2_Error
* exception with the error.
*
* @param SimpleSAML_Configuration $spMetadata The metadata of the service provider.
* @param SimpleSAML_Configuration $idpMetadata The metadata of the identity provider.
* @param SAML2_Response $response The response.
* @return SAML2_Assertion The assertion in the response, if it is valid.
*/
public static function processResponse(SimpleSAML_Configuration $spMetadata, SimpleSAML_Configuration $idpMetadata, SAML2_Response $response)
{
if (!$response->isSuccess()) {
throw self::getResponseError($response);
}
/*
* When we get this far, the response itself is valid.
* We only need to check signatures and conditions of the response.
*/
$assertion = $response->getAssertions();
if (empty($assertion)) {
throw new SimpleSAML_Error_Exception('No assertions found in response from IdP.');
} elseif (count($assertion) > 1) {
throw new SimpleSAML_Error_Exception('More than one assertion found in response from IdP.');
}
$assertion = $assertion[0];
$assertion = self::decryptAssertion($idpMetadata, $spMetadata, $assertion);
if (!self::checkSign($idpMetadata, $assertion)) {
if (!self::checkSign($idpMetadata, $response)) {
throw new SimpleSAML_Error_Exception('Neither the assertion nor the response was signed.');
}
}
/* At least one valid signature found. */
/* Make sure that some fields in the assertion matches the same fields in the message. */
$asrtInResponseTo = $assertion->getInResponseTo();
$msgInResponseTo = $response->getInResponseTo();
if ($asrtInResponseTo !== NULL && $msgInResponseTo !== NULL) {
if ($asrtInResponseTo !== $msgInResponseTo) {
throw new SimpleSAML_Error_Exception('InResponseTo in assertion did not match InResponseTo in message.');
}
}
$asrtDestination = $assertion->getDestination();
$msgDestination = $response->getDestination();
if ($asrtDestination !== NULL && $msgDestination !== NULL) {
if ($asrtDestination !== $msgDestination) {
throw new SimpleSAML_Error_Exception('Destination in assertion did not match Destination in message.');
}
}
/* Check various properties of the assertion. */
$notBefore = $assertion->getNotBefore();
if ($notBefore > time() + 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that is valid in the future. Check clock synchronization on IdP and SP.');
}
$notOnOrAfter = $assertion->getNotOnOrAfter();
if ($notOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that has expired. Check clock synchronization on IdP and SP.');
}
$sessionNotOnOrAfter = $assertion->getSessionNotOnOrAfter();
if ($sessionNotOnOrAfter !== NULL && $sessionNotOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion with a session that has expired. Check clock synchronization on IdP and SP.');
}
$destination = $assertion->getDestination();
$currentURL = SimpleSAML_Utilities::selfURLNoQuery();
if ($destination !== $currentURL) {
throw new Exception('Recipient in assertion doesn\'t match the current URL. Recipient is "' . $destination . '", current URL is "' . $currentURL . '".');
}
$validAudiences = $assertion->getValidAudiences();
if ($validAudiences !== NULL) {
$spEntityId = $spMetadata->getString('entityid');
if (!in_array($spEntityId, $validAudiences, TRUE)) {
$candidates = '[' . implode('], [', $validAudiences) . ']';
throw new SimpleSAML_Error_Exception('This SP [' . $spEntityId . '] is not a valid audience for the assertion. Candidates were: ' . $candidates);
}
}
/* As far as we can tell, the assertion is valid. */
/* Maybe we need to base64 decode the attributes in the assertion? */
if ($idpMetadata->getBoolean('base64attributes', FALSE)) {
$attributes = $assertion->getAttributes();
$newAttributes = array();
foreach ($attributes as $name => $values) {
$newAttributes[$name] = array();
foreach ($values as $value) {
foreach (explode('_', $value) as $v) {
$newAttributes[$name][] = base64_decode($v);
}
}
}
$assertion->setAttributes($newAttributes);
}
/* Decrypt the NameID element if it is encrypted. */
if ($assertion->isNameIdEncrypted()) {
try {
$key = self::getDecryptionKey($idpMetadata, $spMetadata);
} catch (Exception $e) {
throw new SimpleSAML_Error_Exception('Error decrypting NameID: ' . $e->getMessage());
}
$assertion->decryptNameId($key);
}
return $assertion;
}
/**
* Determines if a Response carries an encrypted assertion.
*
* @param SAML2_Response $sspResponse
* @return bool
*/
private function hasEncryptedAssertion(SAML2_Response $sspResponse)
{
$hasEncryptedAssertion = false;
foreach ($sspResponse->getAssertions() as $assertion) {
if ($assertion instanceof SAML2_EncryptedAssertion) {
$hasEncryptedAssertion = true;
break;
}
}
return $hasEncryptedAssertion;
}
private function buildResponse($returnAttributes)
{
/* SubjectConfirmation */
$sc = new SAML2_XML_saml_SubjectConfirmation();
$sc->Method = SAML2_Const::CM_BEARER;
$sc->SubjectConfirmationData = new SAML2_XML_saml_SubjectConfirmationData();
$sc->SubjectConfirmationData->NotBefore = time();
$sc->SubjectConfirmationData->NotOnOrAfter = time() + $this->config->getInteger('validFor');
$sc->SubjectConfirmationData->InResponseTo = $this->query->getId();
$assertion = new SAML2_Assertion();
$assertion->setSubjectConfirmation(array($sc));
$assertion->setIssuer($this->aaEntityId);
$assertion->setNameId($this->query->getNameId());
$assertion->setNotBefore(time());
$assertion->setNotOnOrAfter(time() + $this->config->getInteger('validFor'));
$assertion->setValidAudiences(array($this->spEntityId));
$assertion->setAttributes($returnAttributes);
$assertion->setAttributeNameFormat($this->attributeNameFormat);
if ($this->signAssertion) {
sspmod_saml_Message::addSign($this->aaMetadata, $this->spMetadata, $assertion);
}
/* The Response */
$response = new SAML2_Response();
$response->setRelayState($this->query->getRelayState());
$response->setIssuer($this->aaEntityId);
$response->setInResponseTo($this->query->getId());
$response->setAssertions(array($assertion));
if ($this->signResponse) {
sspmod_saml_Message::addSign($this->aaMetadata, $this->spMetadata, $response);
}
return $response;
}
private static function combine_response(array $values, \SAML2_Response $response = NULL)
{
if (!isset($response)) {
$response = new \SAML2_Response();
}
$presented_assertions = $response->getAssertions();
$assertion = empty($presented_assertions) ? new \SAML2_Assertion() : $presented_assertions[0];
if (self::original_spid_isset($values)) {
$response->setInResponseTo($values['InResponseTo']);
}
if (array_key_exists('ResponseID', $values)) {
$response->setId($values['ResponseID']);
}
if (array_key_exists('AssertionID', $values)) {
$assertion->setId($values['AssertionID']);
}
if (array_key_exists('Issuer', $values)) {
$response->setIssuer($values['Issuer']);
$assertion->setIssuer($values['Issuer']);
}
if (array_key_exists('NameID', $values)) {
$assertion->setNameId(self::build_name_id($values['NameID']));
}
$not_on_or_after_time = time();
if (array_key_exists('AllowedTimeDelta', $values)) {
$not_on_or_after_time += $values['AllowedTimeDelta'];
$assertion->setNotBefore(time() - $values['AllowedTimeDelta']);
$assertion->setNotOnOrAfter($not_on_or_after_time);
} else {
$not_on_or_after_time += DEFAULT_RESPONSE_TIME_DELTA;
}
if (array_key_exists('Audience', $values)) {
$assertion->setValidAudiences(array($values['Audience']));
}
if (array_key_exists('Attributes', $values)) {
$assertion->setAttributes($values['Attributes']);
}
$assertion->setAuthnInstant(time());
if (array_key_exists('AuthnContextClassRef', $values)) {
$assertion->setAuthnContextClassRef($values['AuthnContextClassRef']);
}
if (array_key_exists('SessionIndex', $values)) {
$assertion->setSessionIndex($values['SessionIndex']);
}
if (self::original_spid_isset($values) || array_key_exists('Destination', $values)) {
$original_confirmations = $assertion->getSubjectConfirmation();
$confirmation = NULL;
if (empty($original_confirmations)) {
$confirmation = new \SAML2_XML_saml_SubjectConfirmation();
$confirmation->Method = SAML_CONFIGURATION_METHOD;
} else {
$confirmation = $original_confirmations[0];
}
$original_data = $confirmation->SubjectConfirmationData;
$data = NULL;
if (empty($original_data)) {
$data = new \SAML2_XML_saml_SubjectConfirmationData();
$data->NotOnOrAfter = $not_on_or_after_time;
} else {
$data = $original_data;
if (empty($data->NotOnOrAfter)) {
$data->NotOnOrAfter = $not_on_or_after_time;
}
}
if (array_key_exists('Destination', $values)) {
$data->Recipient = $values['Destination'];
}
if (self::original_spid_isset($values)) {
$data->InResponseTo = $values['InResponseTo'];
}
$confirmation->SubjectConfirmationData = $data;
$assertion->setSubjectConfirmation(array($confirmation));
}
if (array_key_exists('Destination', $values)) {
$response->setDestination($values['Destination']);
}
if (self::need_sign($values)) {
if (array_key_exists('SHA256KeyFile', $values)) {
$ekey = new \XMLSecurityKey(\XMLSecurityKey::RSA_SHA256, array('type' => 'private'));
$ekey->loadKey($values['SHA256KeyFile'], true);
if (self::need_sign_attributes($values)) {
$assertion->setSignatureKey($ekey);
}
if (self::need_sign_message($values)) {
$response->setSignatureKey($ekey);
}
}
if (array_key_exists('SHA256CertFile', $values)) {
$certifictaes = array(file_get_contents($values['SHA256CertFile']));
if (self::need_sign_attributes($values)) {
$assertion->setCertificates($certifictaes);
}
if (self::need_sign_message($values)) {
$response->setCertificates($certifictaes);
}
}
}
$response->setAssertions(array($assertion));
return $response;
}
/**
* @return SAML2_Response
*/
private function getSignedResponseWithSignedAssertion()
{
$doc = new DOMDocument();
$doc->load(__DIR__ . '/response.xml');
$response = new SAML2_Response($doc->firstChild);
$response->setSignatureKey(SAML2_CertificatesMock::getPrivateKey());
$response->setCertificates(array(SAML2_CertificatesMock::PUBLIC_KEY_PEM));
$assertions = $response->getAssertions();
$assertion = $assertions[0];
$assertion->setSignatureKey(SAML2_CertificatesMock::getPrivateKey());
$assertion->setCertificates(array(SAML2_CertificatesMock::PUBLIC_KEY_PEM));
return new SAML2_Response($response->toSignedXML());
}
/**
* @return SAML2_Assertion[]|SAML2_EncryptedAssertion[]
*/
public function getAssertions()
{
return $this->sspMessage->getAssertions();
}
/**
* Process an assertion in a response.
*
* Will throw an exception if it is invalid.
*
* @param SimpleSAML_Configuration $spMetadata The metadata of the service provider.
* @param SimpleSAML_Configuration $idpMetadata The metadata of the identity provider.
* @param SAML2_Response $response The response containing the assertion.
* @param SAML2_Assertion|SAML2_EncryptedAssertion $assertion The assertion.
* @param bool $responseSigned Whether the response is signed.
* @return SAML2_Assertion The assertion, if it is valid.
*/
private static function processAssertion(SimpleSAML_Configuration $spMetadata, SimpleSAML_Configuration $idpMetadata, SAML2_Response $response, $assertion, $responseSigned)
{
assert('$assertion instanceof SAML2_Assertion || $assertion instanceof SAML2_EncryptedAssertion');
assert('is_bool($responseSigned)');
$assertion = self::decryptAssertion($idpMetadata, $spMetadata, $assertion);
if (!self::checkSign($idpMetadata, $assertion)) {
if (!$responseSigned) {
throw new SimpleSAML_Error_Exception('Neither the assertion nor the response was signed.');
}
}
/* At least one valid signature found. */
$currentURL = \SimpleSAML\Utils\HTTP::getSelfURLNoQuery();
/* Check various properties of the assertion. */
$notBefore = $assertion->getNotBefore();
if ($notBefore !== NULL && $notBefore > time() + 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that is valid in the future. Check clock synchronization on IdP and SP.');
}
$notOnOrAfter = $assertion->getNotOnOrAfter();
if ($notOnOrAfter !== NULL && $notOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that has expired. Check clock synchronization on IdP and SP.');
}
$sessionNotOnOrAfter = $assertion->getSessionNotOnOrAfter();
if ($sessionNotOnOrAfter !== NULL && $sessionNotOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion with a session that has expired. Check clock synchronization on IdP and SP.');
}
$validAudiences = $assertion->getValidAudiences();
if ($validAudiences !== NULL) {
$spEntityId = $spMetadata->getString('entityid');
if (!in_array($spEntityId, $validAudiences, TRUE)) {
$candidates = '[' . implode('], [', $validAudiences) . ']';
throw new SimpleSAML_Error_Exception('This SP [' . $spEntityId . '] is not a valid audience for the assertion. Candidates were: ' . $candidates);
}
}
$found = FALSE;
$lastError = 'No SubjectConfirmation element in Subject.';
$validSCMethods = array(SAML2_Const::CM_BEARER, SAML2_Const::CM_HOK, SAML2_Const::CM_VOUCHES);
foreach ($assertion->getSubjectConfirmation() as $sc) {
if (!in_array($sc->Method, $validSCMethods)) {
$lastError = 'Invalid Method on SubjectConfirmation: ' . var_export($sc->Method, TRUE);
continue;
}
/* Is SSO with HoK enabled? IdP remote metadata overwrites SP metadata configuration. */
$hok = $idpMetadata->getBoolean('saml20.hok.assertion', NULL);
if ($hok === NULL) {
$hok = $spMetadata->getBoolean('saml20.hok.assertion', FALSE);
}
if ($sc->Method === SAML2_Const::CM_BEARER && $hok) {
$lastError = 'Bearer SubjectConfirmation received, but Holder-of-Key SubjectConfirmation needed';
continue;
}
if ($sc->Method === SAML2_Const::CM_HOK && !$hok) {
$lastError = 'Holder-of-Key SubjectConfirmation received, but the Holder-of-Key profile is not enabled.';
continue;
}
$scd = $sc->SubjectConfirmationData;
if ($sc->Method === SAML2_Const::CM_HOK) {
/* Check HoK Assertion */
if (\SimpleSAML\Utils\HTTP::isHTTPS() === FALSE) {
$lastError = 'No HTTPS connection, but required for Holder-of-Key SSO';
continue;
}
if (isset($_SERVER['SSL_CLIENT_CERT']) && empty($_SERVER['SSL_CLIENT_CERT'])) {
$lastError = 'No client certificate provided during TLS Handshake with SP';
continue;
}
/* Extract certificate data (if this is a certificate). */
$clientCert = $_SERVER['SSL_CLIENT_CERT'];
$pattern = '/^-----BEGIN CERTIFICATE-----([^-]*)^-----END CERTIFICATE-----/m';
if (!preg_match($pattern, $clientCert, $matches)) {
$lastError = 'Error while looking for client certificate during TLS handshake with SP, the client certificate does not ' . 'have the expected structure';
continue;
}
/* We have a valid client certificate from the browser. */
$clientCert = str_replace(array("\r", "\n", " "), '', $matches[1]);
foreach ($scd->info as $thing) {
if ($thing instanceof SAML2_XML_ds_KeyInfo) {
$keyInfo[] = $thing;
}
}
if (count($keyInfo) != 1) {
$lastError = 'Error validating Holder-of-Key assertion: Only one <ds:KeyInfo> element in <SubjectConfirmationData> allowed';
continue;
}
foreach ($keyInfo[0]->info as $thing) {
if ($thing instanceof SAML2_XML_ds_X509Data) {
$x509data[] = $thing;
}
}
if (count($x509data) != 1) {
$lastError = 'Error validating Holder-of-Key assertion: Only one <ds:X509Data> element in <ds:KeyInfo> within <SubjectConfirmationData> allowed';
continue;
}
foreach ($x509data[0]->data as $thing) {
if ($thing instanceof SAML2_XML_ds_X509Certificate) {
$x509cert[] = $thing;
}
}
if (count($x509cert) != 1) {
$lastError = 'Error validating Holder-of-Key assertion: Only one <ds:X509Certificate> element in <ds:X509Data> within <SubjectConfirmationData> allowed';
continue;
}
$HoKCertificate = $x509cert[0]->certificate;
if ($HoKCertificate !== $clientCert) {
$lastError = 'Provided client certificate does not match the certificate bound to the Holder-of-Key assertion';
continue;
}
}
if ($scd->NotBefore && $scd->NotBefore > time() + 60) {
$lastError = 'NotBefore in SubjectConfirmationData is in the future: ' . $scd->NotBefore;
continue;
}
if ($scd->NotOnOrAfter && $scd->NotOnOrAfter <= time() - 60) {
$lastError = 'NotOnOrAfter in SubjectConfirmationData is in the past: ' . $scd->NotOnOrAfter;
continue;
}
if ($scd->Recipient !== NULL && $scd->Recipient !== $currentURL) {
$lastError = 'Recipient in SubjectConfirmationData does not match the current URL. Recipient is ' . var_export($scd->Recipient, TRUE) . ', current URL is ' . var_export($currentURL, TRUE) . '.';
continue;
}
if ($scd->InResponseTo !== NULL && $response->getInResponseTo() !== NULL && $scd->InResponseTo !== $response->getInResponseTo()) {
$lastError = 'InResponseTo in SubjectConfirmationData does not match the Response. Response has ' . var_export($response->getInResponseTo(), TRUE) . ', SubjectConfirmationData has ' . var_export($scd->InResponseTo, TRUE) . '.';
continue;
}
$found = TRUE;
break;
}
if (!$found) {
throw new SimpleSAML_Error_Exception('Error validating SubjectConfirmation in Assertion: ' . $lastError);
}
/* As far as we can tell, the assertion is valid. */
/* Maybe we need to base64 decode the attributes in the assertion? */
if ($idpMetadata->getBoolean('base64attributes', FALSE)) {
$attributes = $assertion->getAttributes();
$newAttributes = array();
foreach ($attributes as $name => $values) {
$newAttributes[$name] = array();
foreach ($values as $value) {
foreach (explode('_', $value) as $v) {
$newAttributes[$name][] = base64_decode($v);
}
}
}
$assertion->setAttributes($newAttributes);
}
/* Decrypt the NameID element if it is encrypted. */
if ($assertion->isNameIdEncrypted()) {
try {
$keys = self::getDecryptionKeys($idpMetadata, $spMetadata);
} catch (Exception $e) {
throw new SimpleSAML_Error_Exception('Error decrypting NameID: ' . $e->getMessage());
}
$blacklist = self::getBlacklistedAlgorithms($idpMetadata, $spMetadata);
$lastException = NULL;
foreach ($keys as $i => $key) {
try {
$assertion->decryptNameId($key, $blacklist);
SimpleSAML_Logger::debug('Decryption with key #' . $i . ' succeeded.');
$lastException = NULL;
break;
} catch (Exception $e) {
SimpleSAML_Logger::debug('Decryption with key #' . $i . ' failed with exception: ' . $e->getMessage());
$lastException = $e;
}
}
if ($lastException !== NULL) {
throw $lastException;
}
}
return $assertion;
}
/**
* @param SAML2_Response $response
*
* @return SAML2_Assertion[]
*/
private function processAssertions(SAML2_Response $response)
{
$assertions = $response->getAssertions();
if (empty($assertions)) {
throw new SAML2_Response_Exception_NoAssertionsFoundException('No assertions found in response from IdP.');
}
if (!$this->responseIsSigned) {
foreach ($assertions as $assertion) {
if (!$assertion->getWasSignedAtConstruction()) {
throw new SAML2_Response_Exception_UnsignedResponseException('Both the response and the assertion it containes are not signed.');
}
}
}
return $this->assertionProcessor->processAssertions($assertions);
}
private function mockGlobals()
{
$_POST['ID'] = 'test';
$_POST['consent'] = 'yes';
$assertion = new SAML2_Assertion();
$assertion->setAttributes(array('urn:mace:dir:attribute-def:mail' => '*****@*****.**'));
$spRequest = new SAML2_AuthnRequest();
$spRequest->setId('SPREQUEST');
$spRequest->setIssuer('https://sp.example.edu');
$spRequest = new EngineBlock_Saml2_AuthnRequestAnnotationDecorator($spRequest);
$ebRequest = new SAML2_AuthnRequest();
$ebRequest->setId('EBREQUEST');
$ebRequest = new EngineBlock_Saml2_AuthnRequestAnnotationDecorator($ebRequest);
$dummySessionLog = new Psr\Log\NullLogger();
$authnRequestRepository = new EngineBlock_Saml2_AuthnRequestSessionRepository($dummySessionLog);
$authnRequestRepository->store($spRequest);
$authnRequestRepository->store($ebRequest);
$authnRequestRepository->link($ebRequest, $spRequest);
$sspResponse = new SAML2_Response();
$sspResponse->setInResponseTo('EBREQUEST');
$sspResponse->setAssertions(array($assertion));
$_SESSION['consent']['test']['response'] = new EngineBlock_Saml2_ResponseAnnotationDecorator($sspResponse);
}
protected function _createBaseResponse(EngineBlock_Saml2_AuthnRequestAnnotationDecorator $request)
{
if ($request->getVoContext() && $request->isVoContextExplicit()) {
$this->setVirtualOrganisationContext($request->getVoContext());
}
if ($keyId = $request->getKeyId()) {
$this->setKeyId($keyId);
}
$requestWasUnsolicited = $request->isUnsolicited();
$response = new SAML2_Response();
/** @var SAML2_AuthnRequest $request */
$response->setRelayState($request->getRelayState());
$response->setId($this->getNewId(IdFrame::ID_USAGE_SAML2_RESPONSE));
$response->setIssueInstant(time());
if (!$requestWasUnsolicited) {
$response->setInResponseTo($request->getId());
}
$response->setDestination($request->getIssuer());
$response->setIssuer($this->getUrl('idpMetadataService', $request->getIssuer(), $request));
$acs = $this->getRequestAssertionConsumer($request);
$response->setDestination($acs->location);
$response->setStatus(array('Code' => SAML2_Const::STATUS_SUCCESS));
$response = new EngineBlock_Saml2_ResponseAnnotationDecorator($response);
$response->setDeliverByBinding($acs->binding);
return $response;
}
public function validate(SAML2_Response $response, SAML2_Response_Validation_Result $result)
{
if (!$response->isSuccess()) {
$result->addError($this->buildMessage($response->getStatus()));
}
}
/**
* Process an assertion in a response.
*
* Will throw an exception if it is invalid.
*
* @param SimpleSAML_Configuration $spMetadata The metadata of the service provider.
* @param SimpleSAML_Configuration $idpMetadata The metadata of the identity provider.
* @param SAML2_Response $response The response containing the assertion.
* @param SAML2_Assertion|SAML2_EncryptedAssertion $assertion The assertion.
* @param bool $responseSigned Whether the response is signed.
* @return SAML2_Assertion The assertion, if it is valid.
*/
private static function processAssertion(SimpleSAML_Configuration $spMetadata, SimpleSAML_Configuration $idpMetadata, SAML2_Response $response, $assertion, $responseSigned)
{
assert('$assertion instanceof SAML2_Assertion || $assertion instanceof SAML2_EncryptedAssertion');
assert('is_bool($responseSigned)');
$assertion = self::decryptAssertion($idpMetadata, $spMetadata, $assertion);
if (!self::checkSign($idpMetadata, $assertion)) {
if (!$responseSigned) {
throw new SimpleSAML_Error_Exception('Neither the assertion nor the response was signed.');
}
}
/* At least one valid signature found. */
$currentURL = SimpleSAML_Utilities::selfURLNoQuery();
/* Check various properties of the assertion. */
$notBefore = $assertion->getNotBefore();
if ($notBefore > time() + 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that is valid in the future. Check clock synchronization on IdP and SP.');
}
$notOnOrAfter = $assertion->getNotOnOrAfter();
if ($notOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion that has expired. Check clock synchronization on IdP and SP.');
}
$sessionNotOnOrAfter = $assertion->getSessionNotOnOrAfter();
if ($sessionNotOnOrAfter !== NULL && $sessionNotOnOrAfter <= time() - 60) {
throw new SimpleSAML_Error_Exception('Received an assertion with a session that has expired. Check clock synchronization on IdP and SP.');
}
$validAudiences = $assertion->getValidAudiences();
if ($validAudiences !== NULL) {
$spEntityId = $spMetadata->getString('entityid');
if (!in_array($spEntityId, $validAudiences, TRUE)) {
$candidates = '[' . implode('], [', $validAudiences) . ']';
throw new SimpleSAML_Error_Exception('This SP [' . $spEntityId . '] is not a valid audience for the assertion. Candidates were: ' . $candidates);
}
}
$found = FALSE;
$lastError = 'No SubjectConfirmation element in Subject.';
foreach ($assertion->getSubjectConfirmation() as $sc) {
if ($sc->Method !== SAML2_Const::CM_BEARER) {
$lastError = 'Invalid Method on SubjectConfirmation: ' . var_export($sc->Method, TRUE);
continue;
}
$scd = $sc->SubjectConfirmationData;
if ($scd->NotBefore && $scd->NotBefore > time() + 60) {
$lastError = 'NotBefore in SubjectConfirmationData is in the future: ' . $scd->NotBefore;
continue;
}
if ($scd->NotOnOrAfter && $scd->NotOnOrAfter <= time() - 60) {
$lastError = 'NotOnOrAfter in SubjectConfirmationData is in the past: ' . $scd->NotOnOrAfter;
continue;
}
if ($scd->Recipient !== NULL && $scd->Recipient !== $currentURL) {
$lastError = 'Recipient in SubjectConfirmationData does not match the current URL. Recipient is ' . var_export($scd->Recipient, TRUE) . ', current URL is ' . var_export($currentURL, TRUE) . '.';
continue;
}
if ($scd->InResponseTo !== NULL && $response->getInResponseTo() !== NULL && $scd->InResponseTo !== $response->getInResponseTo()) {
$lastError = 'InResponseTo in SubjectConfirmationData does not match the Response. Response has ' . var_export($response->getInResponseTo(), TRUE) . ', SubjectConfirmationData has ' . var_export($scd->InResponseTo, TRUE) . '.';
continue;
}
$found = TRUE;
break;
}
if (!$found) {
throw new SimpleSAML_Error_Exception('Error validating SubjectConfirmation in Assertion: ' . $lastError);
}
/* As far as we can tell, the assertion is valid. */
/* Maybe we need to base64 decode the attributes in the assertion? */
if ($idpMetadata->getBoolean('base64attributes', FALSE)) {
$attributes = $assertion->getAttributes();
$newAttributes = array();
foreach ($attributes as $name => $values) {
$newAttributes[$name] = array();
foreach ($values as $value) {
foreach (explode('_', $value) as $v) {
$newAttributes[$name][] = base64_decode($v);
}
}
}
$assertion->setAttributes($newAttributes);
}
/* Decrypt the NameID element if it is encrypted. */
if ($assertion->isNameIdEncrypted()) {
try {
$keys = self::getDecryptionKeys($idpMetadata, $spMetadata);
} catch (Exception $e) {
throw new SimpleSAML_Error_Exception('Error decrypting NameID: ' . $e->getMessage());
}
$lastException = NULL;
foreach ($keys as $i => $key) {
try {
$assertion->decryptNameId($key);
SimpleSAML_Logger::debug('Decryption with key #' . $i . ' succeeded.');
$lastException = NULL;
break;
} catch (Exception $e) {
SimpleSAML_Logger::debug('Decryption with key #' . $i . ' failed with exception: ' . $e->getMessage());
$lastException = $e;
}
}
if ($lastException !== NULL) {
throw $lastException;
}
}
return $assertion;
}
/**
* Build a authentication response based on information in the metadata.
*
* @param SimpleSAML_Configuration $idpMetadata The metadata of the IdP.
* @param SimpleSAML_Configuration $spMetadata The metadata of the SP.
* @param string $consumerURL The Destination URL of the response.
*/
private static function buildResponse(SimpleSAML_Configuration $idpMetadata, SimpleSAML_Configuration $spMetadata, $consumerURL)
{
$signResponse = $spMetadata->getBoolean('saml20.sign.response', NULL);
if ($signResponse === NULL) {
$signResponse = $idpMetadata->getBoolean('saml20.sign.response', TRUE);
}
$r = new SAML2_Response();
$r->setIssuer($idpMetadata->getString('entityid'));
$r->setDestination($consumerURL);
if ($signResponse) {
sspmod_saml_Message::addSign($idpMetadata, $spMetadata, $r);
}
return $r;
}
public function testLoop()
{
$fixtureResponseDom = new DOMDocument();
$fixtureResponseDom->loadXML(<<<XML
<samlp:Response xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
ID="s2a0da3504aff978b0f8c80f6a62c713c4a2f64c5b"
InResponseTo="_bec424fa5103428909a30ff1e31168327f79474984"
Version="2.0"
IssueInstant="2007-12-10T11:39:48Z"
Destination="http://moodle.bridge.feide.no/simplesaml/saml2/sp/AssertionConsumerService.php">
<saml:Issuer>max.feide.no</saml:Issuer>
<samlp:Extensions>
<myns:AttributeList xmlns:myns="urn:mynamespace">
<myns:Attribute name="UserName" value=""/>
</myns:AttributeList>
</samlp:Extensions>
<samlp:Status>
<samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/>
</samlp:Status>
<saml:Assertion xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
Version="2.0"
ID="s2b7afe8e21a0910d027dfbc94ec4b862e1fbbd9ab"
IssueInstant="2007-12-10T11:39:48Z">
<saml:Issuer>max.feide.no</saml:Issuer>
<saml:Subject>
<saml:NameID NameQualifier="max.feide.no" SPNameQualifier="urn:mace:feide.no:services:no.feide.moodle" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent">UB/WJAaKAPrSHbqlbcKWu7JktcKY</saml:NameID>
<saml:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer">
<saml:SubjectConfirmationData NotOnOrAfter="2007-12-10T19:39:48Z" InResponseTo="_bec424fa5103428909a30ff1e31168327f79474984" Recipient="http://moodle.bridge.feide.no/simplesaml/saml2/sp/AssertionConsumerService.php"/>
</saml:SubjectConfirmation>
</saml:Subject>
<saml:Conditions NotBefore="2007-12-10T11:29:48Z" NotOnOrAfter="2007-12-10T19:39:48Z">
<saml:AudienceRestriction>
<saml:Audience>urn:mace:feide.no:services:no.feide.moodle</saml:Audience>
</saml:AudienceRestriction>
</saml:Conditions>
<saml:AuthnStatement AuthnInstant="2007-12-10T11:39:48Z" SessionIndex="s259fad9cad0cf7d2b3b68f42b17d0cfa6668e0201">
<saml:AuthnContext>
<saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Password</saml:AuthnContextClassRef>
</saml:AuthnContext>
</saml:AuthnStatement>
<saml:AttributeStatement>
<saml:Attribute Name="givenName">
<saml:AttributeValue xsi:type="xs:string">RkVJREUgVGVzdCBVc2VyIChnaXZlbk5hbWUpIMO4w6bDpcOYw4bDhQ==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="eduPersonPrincipalName">
<saml:AttributeValue xsi:type="xs:string">dGVzdEBmZWlkZS5ubw==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="o">
<saml:AttributeValue xsi:type="xs:string">VU5JTkVUVA==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="ou">
<saml:AttributeValue xsi:type="xs:string">VU5JTkVUVA==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="eduPersonOrgDN">
<saml:AttributeValue xsi:type="xs:string">ZGM9dW5pbmV0dCxkYz1ubw==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="eduPersonPrimaryAffiliation">
<saml:AttributeValue xsi:type="xs:string">c3R1ZGVudA==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="mail">
<saml:AttributeValue xsi:type="xs:string">bW9yaWEtc3VwcG9ydEB1bmluZXR0Lm5v</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="preferredLanguage">
<saml:AttributeValue xsi:type="xs:string">bm8=</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="eduPersonOrgUnitDN">
<saml:AttributeValue xsi:type="xs:string">b3U9dW5pbmV0dCxvdT1vcmdhbml6YXRpb24sZGM9dW5pbmV0dCxkYz1ubw==</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="sn">
<saml:AttributeValue xsi:type="xs:string">RkVJREUgVGVzdCBVc2VyIChzbikgw7jDpsOlw5jDhsOF</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="cn">
<saml:AttributeValue xsi:type="xs:string">RkVJREUgVGVzdCBVc2VyIChjbikgw7jDpsOlw5jDhsOF</saml:AttributeValue>
</saml:Attribute>
<saml:Attribute Name="eduPersonAffiliation">
<saml:AttributeValue xsi:type="xs:string">ZW1wbG95ZWU=_c3RhZmY=_c3R1ZGVudA==</saml:AttributeValue>
</saml:Attribute>
</saml:AttributeStatement>
</saml:Assertion>
</samlp:Response>
XML
);
$request = new SAML2_Response($fixtureResponseDom->firstChild);
$requestXml = $requestDocument = $request->toUnsignedXML()->ownerDocument->C14N();
$fixtureXml = $fixtureResponseDom->C14N();
$this->assertXmlStringEqualsXmlString($fixtureXml, $requestXml, 'Response after Unmarshalling and re-marshalling remains the same');
}
