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<?php |
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/** |
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* Copyright 2014 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\StepupRa\RaBundle\Security\Authentication; |
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use Surfnet\SamlBundle\Entity\IdentityProvider; |
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use Surfnet\SamlBundle\Entity\ServiceProvider; |
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use Surfnet\SamlBundle\Http\PostBinding; |
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use Surfnet\SamlBundle\Http\RedirectBinding; |
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use Surfnet\SamlBundle\SAML2\AuthnRequestFactory; |
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use Surfnet\StepupBundle\Service\LoaResolutionService; |
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use Surfnet\StepupBundle\Value\Loa; |
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use Surfnet\StepupRa\RaBundle\Exception\LoaTooLowException; |
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use Surfnet\StepupRa\RaBundle\Exception\UnexpectedIssuerException; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\Security\Core\Exception\AuthenticationException; |
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/** |
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* @SuppressWarnings(PHPMD.CouplingBetweenObjects) |
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*/ |
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class SamlInteractionProvider |
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{ |
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/** |
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* @var \Surfnet\SamlBundle\Entity\ServiceProvider |
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*/ |
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private $serviceProvider; |
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/** |
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* @var \Surfnet\SamlBundle\Entity\IdentityProvider |
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*/ |
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private $identityProvider; |
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/** |
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* @var \Surfnet\SamlBundle\Http\RedirectBinding |
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*/ |
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private $redirectBinding; |
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/** |
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* @var \Surfnet\SamlBundle\Http\PostBinding |
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*/ |
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private $postBinding; |
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/** |
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* @var \Surfnet\StepupRa\RaBundle\Security\Authentication\SamlAuthenticationStateHandler |
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*/ |
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private $samlAuthenticationStateHandler; |
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/** |
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* @var \Surfnet\StepupBundle\Service\LoaResolutionService |
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*/ |
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private $loaResolutionService; |
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/** |
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* @var \Surfnet\StepupBundle\Value\Loa |
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*/ |
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private $requiredLoa; |
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public function __construct( |
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ServiceProvider $serviceProvider, |
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IdentityProvider $identityProvider, |
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RedirectBinding $redirectBinding, |
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PostBinding $postBinding, |
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SamlAuthenticationStateHandler $samlAuthenticationStateHandler, |
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LoaResolutionService $loaResolutionService, |
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Loa $requiredLoa |
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) { |
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$this->serviceProvider = $serviceProvider; |
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$this->identityProvider = $identityProvider; |
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$this->redirectBinding = $redirectBinding; |
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$this->postBinding = $postBinding; |
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$this->loaResolutionService = $loaResolutionService; |
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$this->requiredLoa = $requiredLoa; |
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$this->samlAuthenticationStateHandler = $samlAuthenticationStateHandler; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isSamlAuthenticationInitiated() |
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{ |
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return $this->samlAuthenticationStateHandler->hasRequestId(); |
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} |
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/** |
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* @return \Symfony\Component\HttpFoundation\RedirectResponse |
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*/ |
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public function initiateSamlRequest() |
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{ |
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$authnRequest = AuthnRequestFactory::createNewRequest( |
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$this->serviceProvider, |
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$this->identityProvider |
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); |
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$authnRequest->setAuthenticationContextClassRef((string) $this->requiredLoa); |
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$this->samlAuthenticationStateHandler->setRequestId($authnRequest->getRequestId()); |
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return $this->redirectBinding->createRedirectResponseFor($authnRequest); |
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} |
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/** |
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* @param Request $request |
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* @return \SAML2\Assertion |
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* @throws LoaTooLowException When required LoA is not met by response |
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* @throws AuthenticationException When response LoA cannot be resolved |
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* @throws UnexpectedIssuerException |
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*/ |
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public function processSamlResponse(Request $request) |
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{ |
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/** @var \SAML2\Assertion $assertion */ |
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$assertion = $this->postBinding->processResponse( |
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$request, |
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$this->identityProvider, |
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$this->serviceProvider |
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); |
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$this->samlAuthenticationStateHandler->clearRequestId(); |
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if ($assertion->getIssuer() !== $this->identityProvider->getEntityId()) { |
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throw new UnexpectedIssuerException(sprintf( |
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'Expected issuer to be configured remote IdP "%s", got "%s"', |
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$this->identityProvider->getEntityId(), |
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$assertion->getIssuer() |
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)); |
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} |
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$authnContextClassRef = $assertion->getAuthnContextClassRef(); |
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if (!$this->loaResolutionService->hasLoa($authnContextClassRef)) { |
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throw new AuthenticationException('Received SAML response with unresolvable LoA'); |
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} |
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if (!$this->loaResolutionService->getLoa($authnContextClassRef)->canSatisfyLoa($this->requiredLoa)) { |
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throw new LoaTooLowException( |
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sprintf( |
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"Gateway responded with LoA '%s', which is lower than required LoA '%s'", |
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$assertion->getAuthnContextClassRef(), |
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(string) $this->requiredLoa |
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) |
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); |
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} |
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return $assertion; |
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} |
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/** |
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* Resets the SAML flow. |
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*/ |
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public function reset() |
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{ |
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$this->samlAuthenticationStateHandler->clearRequestId(); |
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} |
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} |
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OpenConext /
Stepup-RA
This method has been deprecated. The supplier of the class has supplied an explanatory message.
The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.