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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\StepupSelfService\SelfServiceBundle\Security\Authentication\Handler; |
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use Surfnet\SamlBundle\Monolog\SamlAuthenticationLogger; |
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use Surfnet\SamlBundle\SAML2\Response\Assertion\InResponseTo; |
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use Surfnet\StepupSelfService\SelfServiceBundle\Security\Authentication\AuthenticatedSessionStateHandler; |
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use Surfnet\StepupSelfService\SelfServiceBundle\Security\Authentication\SamlAuthenticationStateHandler; |
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use Surfnet\StepupSelfService\SelfServiceBundle\Security\Authentication\SamlInteractionProvider; |
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use Surfnet\StepupSelfService\SelfServiceBundle\Security\Authentication\Token\SamlToken; |
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use Symfony\Bundle\FrameworkBundle\Templating\EngineInterface; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpKernel\Event\GetResponseEvent; |
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use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface; |
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use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface; |
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use Symfony\Component\Security\Core\Exception\AuthenticationException; |
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/** |
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* @SuppressWarnings(PHPMD.CouplingBetweenObjects) SamlResponse parsing, validation authentication and error handling |
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* requires quite a few classes as it is fairly complex. |
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*/ |
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class ProcessSamlAuthenticationHandler implements AuthenticationHandler |
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{ |
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/** |
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* @var AuthenticationHandler |
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*/ |
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private $nextHandler; |
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/** |
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* @var TokenStorageInterface |
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*/ |
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private $tokenStorage; |
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/** |
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* @var SamlInteractionProvider |
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*/ |
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private $samlInteractionProvider; |
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/** |
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* @var SamlAuthenticationStateHandler |
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*/ |
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private $authenticationStateHandler; |
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/** |
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* @var AuthenticatedSessionStateHandler |
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*/ |
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private $authenticatedSession; |
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/** |
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* @var AuthenticationManagerInterface |
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*/ |
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private $authenticationManager; |
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/** |
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* @var SamlAuthenticationLogger |
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*/ |
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private $authenticationLogger; |
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/** |
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* @var EngineInterface |
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*/ |
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private $templating; |
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public function __construct( |
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TokenStorageInterface $tokenStorage, |
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SamlInteractionProvider $samlInteractionProvider, |
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SamlAuthenticationStateHandler $authenticationStateHandler, |
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AuthenticatedSessionStateHandler $authenticatedSession, |
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AuthenticationManagerInterface $authenticationManager, |
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SamlAuthenticationLogger $authenticationLogger, |
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EngineInterface $templating |
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) { |
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$this->tokenStorage = $tokenStorage; |
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$this->samlInteractionProvider = $samlInteractionProvider; |
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$this->authenticationStateHandler = $authenticationStateHandler; |
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$this->authenticatedSession = $authenticatedSession; |
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$this->authenticationManager = $authenticationManager; |
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$this->authenticationLogger = $authenticationLogger; |
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$this->templating = $templating; |
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} |
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public function process(GetResponseEvent $event) |
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{ |
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if ($this->tokenStorage->getToken() === null |
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&& $this->samlInteractionProvider->isSamlAuthenticationInitiated() |
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) { |
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$expectedInResponseTo = $this->authenticationStateHandler->getRequestId(); |
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$logger = $this->authenticationLogger->forAuthentication($expectedInResponseTo); |
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$logger->notice('No authenticated user and AuthnRequest pending, attempting to process SamlResponse'); |
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$assertion = $this->samlInteractionProvider->processSamlResponse($event->getRequest()); |
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if (!InResponseTo::assertEquals($assertion, $expectedInResponseTo)) { |
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throw new AuthenticationException('Unknown or unexpected InResponseTo in SAMLResponse'); |
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} |
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$logger->notice('Successfully processed SAMLResponse, attempting to authenticate'); |
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$token = new SamlToken(); |
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$token->assertion = $assertion; |
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$authToken = $this->authenticationManager->authenticate($token); |
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$this->authenticatedSession->logAuthenticationMoment(); |
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$this->tokenStorage->setToken($authToken); |
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// migrate the session to prevent session hijacking |
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$this->authenticatedSession->migrate(); |
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$event->setResponse(new RedirectResponse($this->authenticatedSession->getCurrentRequestUri())); |
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$logger->notice('Authentication succeeded, redirecting to original location'); |
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return; |
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} |
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if ($this->nextHandler) { |
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$this->nextHandler->process($event); |
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} |
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} |
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public function setNext(AuthenticationHandler $handler) |
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{ |
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$this->nextHandler = $handler; |
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} |
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} |
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OpenConext /
Stepup-SelfService
