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<?php |
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namespace Surfnet\StepupGateway\SamlStepupProviderBundle\Service\Gateway; |
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use Exception; |
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use Psr\Log\LoggerInterface; |
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use Surfnet\SamlBundle\Http\PostBinding; |
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use Surfnet\SamlBundle\Monolog\SamlAuthenticationLogger; |
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use Surfnet\StepupGateway\GatewayBundle\Entity\ServiceProvider; |
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use Surfnet\StepupGateway\GatewayBundle\Exception\ResponseFailureException; |
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use Surfnet\StepupGateway\GatewayBundle\Saml\AssertionAdapter; |
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use Surfnet\StepupGateway\GatewayBundle\Saml\Exception\UnknownInResponseToException; |
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use Surfnet\StepupGateway\SamlStepupProviderBundle\Exception\InvalidSubjectException; |
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use Surfnet\StepupGateway\SamlStepupProviderBundle\Exception\SecondfactorVerfificationRequiredException; |
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use Surfnet\StepupGateway\SamlStepupProviderBundle\Provider\ConnectedServiceProviders; |
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use Surfnet\StepupGateway\SamlStepupProviderBundle\Provider\Provider; |
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use Surfnet\StepupGateway\SamlStepupProviderBundle\Saml\ProxyResponseFactory; |
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use Symfony\Component\HttpFoundation\Request; |
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/** |
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* @SuppressWarnings(PHPMD.CouplingBetweenObjects) |
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*/ |
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class ConsumeAssertionService |
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{ |
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/** @var LoggerInterface */ |
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private $logger; |
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/** @var SamlAuthenticationLogger */ |
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private $samlLogger; |
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/** @var PostBinding */ |
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private $postBinding; |
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/** @var ConnectedServiceProviders */ |
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private $connectedServiceProviders; |
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private $handledRequestId = null; |
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/** |
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* ConsumeAssertionService constructor. |
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* @param LoggerInterface $logger |
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* @param SamlAuthenticationLogger $samlLogger |
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* @param PostBinding $postBinding |
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* @param ConnectedServiceProviders $connectedServiceProviders |
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*/ |
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public function __construct( |
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LoggerInterface $logger, |
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SamlAuthenticationLogger $samlLogger, |
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PostBinding $postBinding, |
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ConnectedServiceProviders $connectedServiceProviders |
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) { |
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$this->logger = $logger; |
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$this->samlLogger = $samlLogger; |
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$this->postBinding = $postBinding; |
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$this->connectedServiceProviders = $connectedServiceProviders; |
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} |
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/** |
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* Process an assertion received from a remote GSSP application. |
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* |
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* There are two possible outcomes for a valid flow: |
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* |
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* 1. in case of registration: a SAMLResponse is returned |
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* 2. in case of verification: a SecondfactorVerfificationRequiredException exception is thrown |
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* |
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* @param Provider $provider |
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* @param Request $httpRequest |
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* @param ProxyResponseFactory $proxyResponseFactory |
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* @return \SAML2\Response |
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* @throws Exception |
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*/ |
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public function consumeAssertion(Provider $provider, Request $httpRequest, ProxyResponseFactory $proxyResponseFactory) |
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{ |
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$stateHandler = $provider->getStateHandler(); |
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$originalRequestId = $stateHandler->getRequestId(); |
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$this->handledRequestId = $originalRequestId; |
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$logger = $this->samlLogger->forAuthentication($originalRequestId); |
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$action = $stateHandler->hasSubject() ? 'Second Factor Verification' : 'Proxy Response'; |
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$logger->notice( |
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sprintf('Received SAMLResponse, attempting to process for %s', $action) |
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); |
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try { |
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$assertion = $this->postBinding->processResponse( |
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$httpRequest, |
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$provider->getRemoteIdentityProvider(), |
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$provider->getServiceProvider() |
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); |
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} catch (Exception $exception) { |
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$message = sprintf('Could not process received Response, error: "%s"', $exception->getMessage()); |
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$logger->error($message); |
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throw new ResponseFailureException($message); |
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} |
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$adaptedAssertion = new AssertionAdapter($assertion); |
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$expectedResponse = $stateHandler->getGatewayRequestId(); |
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if (!$adaptedAssertion->inResponseToMatches($expectedResponse)) { |
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throw new UnknownInResponseToException( |
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$adaptedAssertion->getInResponseTo(), |
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$expectedResponse |
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); |
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} |
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$authenticatedNameId = $assertion->getNameId(); |
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$isSubjectRequested = $stateHandler->hasSubject(); |
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if ($isSubjectRequested && ($stateHandler->getSubject() !== $authenticatedNameId->value)) { |
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$message = sprintf( |
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'Requested Subject NameID "%s" and Response NameID "%s" do not match', |
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$stateHandler->getSubject(), |
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$authenticatedNameId->value |
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); |
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$logger->critical($message); |
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throw new InvalidSubjectException($message); |
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} |
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$logger->notice('Successfully processed SAMLResponse'); |
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if ($stateHandler->secondFactorVerificationRequested()) { |
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$message = 'Second Factor verification was requested and was successful, forwarding to SecondFactor handling'; |
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$logger->notice($message); |
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throw new SecondfactorVerfificationRequiredException($message); |
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} |
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$targetServiceProvider = $this->getServiceProvider($stateHandler->getRequestServiceProvider()); |
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$response = $proxyResponseFactory->createProxyResponse( |
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$assertion, |
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$targetServiceProvider->determineAcsLocation( |
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$stateHandler->getRequestAssertionConsumerServiceUrl(), |
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$this->logger |
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) |
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); |
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$logger->notice(sprintf( |
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'Responding to request "%s" with response based on response from the remote IdP with response "%s"', |
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$stateHandler->getRequestId(), |
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$response->getId() |
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)); |
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return $response; |
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} |
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/** |
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* @param string $serviceProvider |
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* @return ServiceProvider |
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*/ |
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private function getServiceProvider($serviceProvider) |
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{ |
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return $this->connectedServiceProviders->getConfigurationOf($serviceProvider); |
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} |
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/** |
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* @return null|string |
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*/ |
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public function getReceivedRequestId() |
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{ |
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return $this->handledRequestId; |
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} |
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} |
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OpenConext /
Stepup-Gateway
