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<?php |
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namespace App\EventSubscriber; |
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use Scheb\TwoFactorBundle\Security\Authentication\Token\TwoFactorToken; |
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use SchulIT\LightSamlIdpBundle\RequestStorage\RequestStorageInterface; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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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\HttpKernel\KernelEvents; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken; |
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use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface; |
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; |
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/** |
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* Listener which checks whether there is a SAMLRequest pending from before login. If so, the listener redirects to the |
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* SSO controller in order to send the SAMLResponse (and redirect the user to the requested service). |
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*/ |
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class HandleSamlRequestSubscriber implements EventSubscriberInterface { |
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private $urlGenerator; |
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private $tokenStorage; |
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private $samlRequestStorage; |
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public function __construct(TokenStorageInterface $tokenStorage, RequestStorageInterface $requestStorage, UrlGeneratorInterface $urlGenerator) { |
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$this->tokenStorage = $tokenStorage; |
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$this->samlRequestStorage = $requestStorage; |
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$this->urlGenerator = $urlGenerator; |
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} |
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public function onKernelRequest(GetResponseEvent $event) { |
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$request = $event->getRequest(); |
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$route = $request->get('_route'); |
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if(!$event->isMasterRequest()) { |
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// prevent loops |
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return; |
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} |
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/** @var TokenInterface|null $token */ |
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$token = $this->tokenStorage->getToken(); |
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if($token === null || !$token->isAuthenticated() || $token instanceof AnonymousToken || $token instanceof TwoFactorToken || $route === 'idp_saml') { |
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// prevent loops |
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return; |
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} |
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if($this->samlRequestStorage->has()) { |
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$response = new RedirectResponse($this->urlGenerator->generate('idp_saml')); |
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$event->setResponse($response); |
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} |
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} |
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/** |
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* @return array |
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*/ |
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public static function getSubscribedEvents() { |
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return [ |
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KernelEvents::REQUEST => [ |
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[ 'onKernelRequest', 0] |
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] |
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]; |
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} |
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} |