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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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View Code Duplication |
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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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.