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<?php |
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/** |
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* Copyright 2016 SURFnet bv |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace Surfnet\StepupGateway\SecondFactorOnlyBundle\Controller; |
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use Surfnet\StepupGateway\GatewayBundle\Container\ContainerController; |
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use Surfnet\StepupGateway\GatewayBundle\Exception\RequesterFailureException; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Adfs\Exception\InvalidAdfsRequestException; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Adfs\Exception\InvalidAdfsResponseException; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Exception\InvalidSecondFactorMethodException; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Service\Gateway\AdfsService; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Service\Gateway\LoginService; |
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use Surfnet\StepupGateway\SecondFactorOnlyBundle\Service\Gateway\RespondService; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpKernel\Exception\BadRequestHttpException; |
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use Symfony\Component\Routing\Attribute\Route; |
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/** |
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* Entry point for the Stepup SFO flow. |
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* |
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* See docs/GatewayState.md for a high-level diagram on how this controller |
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* interacts with outside actors and other parts of Stepup. |
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*/ |
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class SecondFactorOnlyController extends ContainerController |
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{ |
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/** |
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* Receive an AuthnRequest from a service provider. |
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* |
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* This action will forward the user using an internal redirect to the |
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* SecondFactorController to start the actual second factor verification. |
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* |
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* This action also detects if the request is made by ADFS, and tracks |
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* some additional information in the session of the user in order to send |
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* a non-standard response back to ADFS. |
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* |
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* @param Request $httpRequest |
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* @return Response |
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* @throws InvalidAdfsRequestException |
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*/ |
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#[Route( |
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path: '/second-factor-only/single-sign-on', |
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name: 'gateway_second_factor_only_identityprovider_sso', |
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methods: ['GET', 'POST'] |
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)] |
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public function sso(Request $httpRequest): Response |
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{ |
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$logger = $this->get('logger'); |
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if (!$this->getParameter('second_factor_only')) { |
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$logger->notice('Access to ssoAction denied, second_factor_only parameter set to false.'); |
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throw $this->createAccessDeniedException('Second Factor Only feature is disabled'); |
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} |
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$logger->notice('Received AuthnRequest on second-factor-only endpoint, started processing'); |
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$secondFactorLoginService = $this->getSecondFactorLoginService(); |
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// Handle binding |
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$originalRequest = $secondFactorLoginService->handleBinding($httpRequest); |
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// Transform ADFS request to Authn request if applicable |
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$logger = $this->get('surfnet_saml.logger')->forAuthentication($originalRequest->getRequestId()); |
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$httpRequest = $this->getSecondFactorAdfsService()->handleAdfsRequest($logger, $httpRequest, $originalRequest); |
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try { |
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$secondFactorLoginService->singleSignOn($httpRequest, $originalRequest); |
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} catch (RequesterFailureException $e) { |
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/** @var \Surfnet\StepupGateway\GatewayBundle\Service\ResponseRenderingService $responseRendering */ |
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$responseRendering = $this->get('second_factor_only.response_rendering'); |
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return $responseRendering->renderRequesterFailureResponse($this->getResponseContext(), $httpRequest); |
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} |
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$logger->notice('Forwarding to second factor controller for loa determination and handling'); |
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// Forward to the selectSecondFactorForVerificationSsoAction, |
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// this in turn will forward to the correct |
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// verification action (based on authentication type sso/sfo) |
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return $this->forward('Surfnet\StepupGateway\GatewayBundle\Controller\SecondFactorController::selectSecondFactorForVerificationSfo'); |
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} |
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/** |
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* Send a SAML response back to the service provider. |
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* |
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* Second factor verification handled by SecondFactorController is |
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* finished. The user was forwarded back to this action with an internal |
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* redirect. This method sends a AuthnResponse back to the service |
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* provider in response to the AuthnRequest received in ssoAction(). |
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* |
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* When responding to an ADFS authentication, the additional ADFS |
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* parameters (Context, AuthMethod) are added to the POST response data. |
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* In this case, the SAMLResponse parameter is prepended with an |
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* underscore. And finally the ACS location the SAMLResponse wil be sent |
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* to, is updated to use the ACS location set in the original AuthNRequest. |
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* |
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* @return Response |
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* @throws InvalidAdfsResponseException |
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*/ |
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public function respond(Request $request): Response |
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{ |
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$responseContext = $this->getResponseContext(); |
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$originalRequestId = $responseContext->getInResponseTo(); |
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$logger = $this->get('surfnet_saml.logger')->forAuthentication($originalRequestId); |
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$responseRendering = $this->get('second_factor_only.response_rendering'); |
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if (!$this->getParameter('second_factor_only')) { |
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$logger->notice(sprintf( |
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'Access to %s denied, second_factor_only parameter set to false.', |
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__METHOD__ |
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)); |
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throw $this->createAccessDeniedException('Second Factor Only feature disabled'); |
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} |
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try { |
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$response = $this->getSecondFactorRespondService()->respond($responseContext, $request); |
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} catch (InvalidSecondFactorMethodException $e) { |
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throw new BadRequestHttpException($e->getMessage()); |
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} |
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// Reset state |
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$this->getSecondFactorRespondService()->resetRespondState($responseContext); |
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// Check if ADFS response, if it is, we use the ADFS ACS twig template |
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$adfsParameters = $this->getSecondFactorAdfsService()->handleAdfsResponse($logger, $responseContext); |
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if (!is_null($adfsParameters)) { |
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// Handle Adfs response |
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$xmlResponse = $responseRendering->getResponseAsXML($response); |
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$httpResponse = $this->render( |
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'@SurfnetStepupGatewaySecondFactorOnly/adfs/consume_assertion.html.twig', |
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[ |
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'acu' => $responseContext->getDestinationForAdfs(), |
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'samlResponse' => $xmlResponse, |
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'adfs' => $adfsParameters, |
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] |
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); |
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} else { |
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// Render the regular SAML response, we do not return it yet, the SSO on 2FA handler will use it to store |
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// the SSO on 2FA cookie. |
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$httpResponse = $responseRendering->renderResponse($responseContext, $response, $request); |
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} |
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if ($response->isSuccess()) { |
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$ssoCookieService = $this->get('gateway.service.sso_2fa_cookie'); |
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$ssoCookieService->handleSsoOn2faCookieStorage($responseContext, $request, $httpResponse); |
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} |
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// We can now forget the selected second factor. |
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$responseContext->finalizeAuthentication(); |
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return $httpResponse; |
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} |
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/** |
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* @return \Surfnet\StepupGateway\GatewayBundle\Saml\ResponseContext |
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*/ |
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public function getResponseContext() |
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{ |
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return $this->get('second_factor_only.response_context'); |
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} |
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/** |
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* @return LoginService |
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*/ |
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public function getSecondFactorLoginService() |
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{ |
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return $this->get('second_factor_only.login_service'); |
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} |
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/** |
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* @return RespondService |
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*/ |
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public function getSecondFactorRespondService() |
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{ |
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return $this->get('second_factor_only.respond_service'); |
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} |
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/** |
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* @return AdfsService |
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*/ |
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public function getSecondFactorAdfsService() |
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{ |
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return $this->get('second_factor_only.adfs_service'); |
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} |
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} |
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OpenConext /
Stepup-Gateway
