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<?php |
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declare(strict_types=1); |
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namespace EcPhp\CasBundle\Security; |
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use EcPhp\CasBundle\Security\Core\User\CasUserProviderInterface; |
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use EcPhp\CasLib\CasInterface; |
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use EcPhp\CasLib\Introspection\Contract\ServiceValidate; |
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use EcPhp\CasLib\Utils\Uri; |
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use InvalidArgumentException; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Symfony\Bridge\PsrHttpMessage\HttpMessageFactoryInterface; |
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use Symfony\Component\HttpFoundation\JsonResponse; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; |
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use Symfony\Component\Security\Core\Exception\AuthenticationException; |
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use Symfony\Component\Security\Core\User\UserInterface; |
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use Symfony\Component\Security\Core\User\UserProviderInterface; |
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use Symfony\Component\Security\Guard\AbstractGuardAuthenticator; |
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use Symfony\Component\Security\Http\Logout\LogoutSuccessHandlerInterface; |
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class CasGuardAuthenticator extends AbstractGuardAuthenticator implements LogoutSuccessHandlerInterface |
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{ |
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/** |
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* The ecphp/cas-lib library. |
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* |
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* @var \EcPhp\CasLib\CasInterface |
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*/ |
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private $cas; |
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/** |
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* @var \Symfony\Bridge\PsrHttpMessage\HttpMessageFactoryInterface |
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*/ |
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private $httpMessageFactory; |
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public function __construct( |
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CasInterface $cas, |
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HttpMessageFactoryInterface $httpMessageFactory |
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) { |
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$this->cas = $cas; |
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$this->httpMessageFactory = $httpMessageFactory; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function checkCredentials($credentials, UserInterface $user) |
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{ |
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try { |
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$introspect = $this->cas->detect($credentials); |
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} catch (InvalidArgumentException $exception) { |
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throw new AuthenticationException($exception->getMessage()); |
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} |
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if (false === ($introspect instanceof ServiceValidate)) { |
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throw new AuthenticationException( |
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'Failure in the returned response' |
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); |
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} |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCredentials(Request $request) |
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{ |
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$response = $this |
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->cas->withServerRequest($this->toPsr($request)) |
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->requestTicketValidation(); |
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if (null === $response) { |
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throw new AuthenticationException('Unable to authenticate the user with such service ticket.'); |
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} |
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return $response; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getUser($credentials, UserProviderInterface $userProvider) |
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{ |
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if (false === ($userProvider instanceof CasUserProviderInterface)) { |
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throw new AuthenticationException('Unable to load the user through the given User Provider.'); |
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} |
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try { |
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$user = $userProvider->loadUserByResponse($credentials); |
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} catch (AuthenticationException $exception) { |
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throw $exception; |
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} |
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return $user; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function onAuthenticationFailure(Request $request, AuthenticationException $exception) |
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{ |
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$uri = $this->toPsr($request)->getUri(); |
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if (true === Uri::hasParams($uri, 'ticket')) { |
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// Remove the ticket parameter. |
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$uri = Uri::removeParams( |
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$uri, |
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'ticket' |
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); |
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// Add the renew parameter to force login again. |
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$uri = Uri::withParam($uri, 'renew', 'true'); |
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return new RedirectResponse((string) $uri); |
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} |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey) |
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{ |
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return new RedirectResponse( |
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(string) Uri::removeParams( |
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$this->toPsr($request)->getUri(), |
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'ticket', |
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'renew' |
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) |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function onLogoutSuccess(Request $request) |
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{ |
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$response = $this |
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->cas |
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->logout(); |
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if (null === $response) { |
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throw new AuthenticationException('Unable to trigger the logout procedure'); |
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} |
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return new RedirectResponse( |
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$response |
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->getHeaderLine('location') |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function start(Request $request, ?AuthenticationException $authException = null) |
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{ |
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if (true === $request->isXmlHttpRequest()) { |
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return new JsonResponse( |
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['message' => 'Authentication required'], |
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Response::HTTP_UNAUTHORIZED |
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); |
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} |
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$response = $this |
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->cas |
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->login(); |
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if (null === $response) { |
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throw new AuthenticationException('Unable to trigger the login procedure'); |
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} |
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return new RedirectResponse( |
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$response |
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->getHeaderLine('location') |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function supports(Request $request) |
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{ |
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return $this |
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->cas |
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->withServerRequest($this->toPsr($request)) |
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->supportAuthentication(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function supportsRememberMe() |
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{ |
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return false; |
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} |
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/** |
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* Convert a Symfony request into a PSR Request. |
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* |
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* @param \Symfony\Component\HttpFoundation\Request $request |
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* The Symfony request. |
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* |
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* @return \Psr\Http\Message\ServerRequestInterface |
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* The PSR request. |
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*/ |
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private function toPsr(Request $request): ServerRequestInterface |
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{ |
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// As we cannot decorate the Symfony Request object, we convert it into |
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// a PSR Request so we can override the PSR HTTP Message factory if |
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// needed. |
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// See the reasons at https://github.com/ecphp/cas-lib/issues/5 |
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return $this->httpMessageFactory->createRequest($request); |
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} |
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} |
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ecphp /
cas-bundle
