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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\StepupGateway\SecondFactorOnlyBundle\Saml; |
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use SAML2_Assertion; |
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use Surfnet\SamlBundle\Entity\IdentityProvider; |
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use Surfnet\SamlBundle\Entity\ServiceProvider; |
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use Surfnet\StepupGateway\GatewayBundle\Saml\AssertionSigningService; |
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use Surfnet\StepupGateway\GatewayBundle\Saml\Proxy\ProxyStateHandler; |
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/** |
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* @SuppressWarnings(PHPMD.CouplingBetweenObjects) |
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*/ |
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final class ResponseFactory |
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{ |
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/** |
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* @var \Surfnet\SamlBundle\Entity\IdentityProvider |
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*/ |
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private $hostedIdentityProvider; |
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/** |
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* @var \Surfnet\StepupGateway\GatewayBundle\Saml\Proxy\ProxyStateHandler |
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*/ |
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private $proxyStateHandler; |
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/** |
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* @var \DateTime |
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*/ |
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private $currentTime; |
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/** |
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* @var \Surfnet\StepupGateway\GatewayBundle\Saml\AssertionSigningService |
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*/ |
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private $assertionSigningService; |
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View Code Duplication |
public function __construct( |
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IdentityProvider $hostedIdentityProvider, |
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ProxyStateHandler $proxyStateHandler, |
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AssertionSigningService $assertionSigningService |
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) { |
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$this->hostedIdentityProvider = $hostedIdentityProvider; |
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$this->proxyStateHandler = $proxyStateHandler; |
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$this->assertionSigningService = $assertionSigningService; |
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$this->currentTime = new \DateTime('now', new \DateTimeZone('UTC')); |
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} |
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/** |
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* @param string $nameId |
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* @param ServiceProvider $targetServiceProvider |
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* @param string|null $authnContextClassRef |
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* @return \SAML2_Response |
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*/ |
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public function createSecondFactorOnlyResponse( |
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$nameId, |
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ServiceProvider $targetServiceProvider, |
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$authnContextClassRef |
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) { |
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$newAssertion = new SAML2_Assertion(); |
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$newAssertion->setNotBefore($this->currentTime->getTimestamp()); |
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$newAssertion->setNotOnOrAfter($this->getTimestamp('PT5M')); |
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$newAssertion->setIssuer($this->hostedIdentityProvider->getEntityId()); |
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$newAssertion->setIssueInstant($this->getTimestamp()); |
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$this->assertionSigningService->signAssertion($newAssertion); |
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$this->addSubjectConfirmationFor($newAssertion, $targetServiceProvider); |
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$newAssertion->setNameId([ |
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'Format' => \SAML2_Const::NAMEID_UNSPECIFIED, |
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'Value' => $nameId, |
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]); |
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$newAssertion->setValidAudiences([$this->proxyStateHandler->getRequestServiceProvider()]); |
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$this->addAuthenticationStatementTo($newAssertion, $authnContextClassRef); |
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return $this->createNewAuthnResponse($newAssertion, $targetServiceProvider); |
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} |
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/** |
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* @param SAML2_Assertion $newAssertion |
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* @param ServiceProvider $targetServiceProvider |
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*/ |
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View Code Duplication |
private function addSubjectConfirmationFor(SAML2_Assertion $newAssertion, ServiceProvider $targetServiceProvider) |
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{ |
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$confirmation = new \SAML2_XML_saml_SubjectConfirmation(); |
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$confirmation->Method = \SAML2_Const::CM_BEARER; |
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$confirmationData = new \SAML2_XML_saml_SubjectConfirmationData(); |
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$confirmationData->InResponseTo = $this->proxyStateHandler->getRequestId(); |
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$confirmationData->Recipient = $targetServiceProvider->getAssertionConsumerUrl(); |
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$confirmationData->NotOnOrAfter = $this->getTimestamp('PT8H'); |
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$confirmation->SubjectConfirmationData = $confirmationData; |
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$newAssertion->setSubjectConfirmation([$confirmation]); |
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} |
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/** |
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* @param SAML2_Assertion $assertion |
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* @param SAML2_Assertion $assertion |
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*/ |
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private function addAuthenticationStatementTo(SAML2_Assertion $assertion, $authnContextClassRef) |
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{ |
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$assertion->setAuthnInstant($this->getTimestamp()); |
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$assertion->setAuthnContextClassRef($authnContextClassRef); |
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$assertion->setAuthenticatingAuthority([$this->hostedIdentityProvider->getEntityId()]); |
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} |
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/** |
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* @param SAML2_Assertion $newAssertion |
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* @param ServiceProvider $targetServiceProvider |
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* @return \SAML2_Response |
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*/ |
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private function createNewAuthnResponse(SAML2_Assertion $newAssertion, ServiceProvider $targetServiceProvider) |
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{ |
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$response = new \SAML2_Response(); |
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$response->setAssertions([$newAssertion]); |
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$response->setIssuer($this->hostedIdentityProvider->getEntityId()); |
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$response->setIssueInstant($this->getTimestamp()); |
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$response->setDestination($targetServiceProvider->getAssertionConsumerUrl()); |
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$response->setInResponseTo($this->proxyStateHandler->getRequestId()); |
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return $response; |
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} |
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/** |
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* @param string $interval a \DateInterval compatible interval to skew the time with |
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* @return int |
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*/ |
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private function getTimestamp($interval = null) |
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{ |
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$time = clone $this->currentTime; |
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if ($interval) { |
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$time->add(new \DateInterval($interval)); |
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} |
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return $time->getTimestamp(); |
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} |
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} |
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OpenConext /
Stepup-Gateway
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.