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<?php |
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declare(strict_types=1); |
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namespace Facile\OpenIDClient\Middleware; |
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use Facile\OpenIDClient\Authorization\AuthRequestInterface; |
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use function Facile\OpenIDClient\base64url_encode; |
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use Facile\OpenIDClient\Client\ClientInterface; |
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use Facile\OpenIDClient\Exception\LogicException; |
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use Facile\OpenIDClient\Exception\RuntimeException; |
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use Facile\OpenIDClient\Service\AuthorizationService; |
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use Facile\OpenIDClient\Session\AuthSessionInterface; |
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use Http\Discovery\Psr17FactoryDiscovery; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use function random_bytes; |
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class AuthRedirectHandler implements RequestHandlerInterface |
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{ |
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/** @var AuthorizationService */ |
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private $authorizationService; |
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/** @var ResponseFactoryInterface */ |
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private $responseFactory; |
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/** @var null|ClientInterface */ |
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private $client; |
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/** @var int */ |
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private $randomBytes; |
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public function __construct( |
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AuthorizationService $authorizationService, |
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?ResponseFactoryInterface $responseFactory = null, |
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?ClientInterface $client = null, |
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int $randomBytes = 32 |
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) { |
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$this->authorizationService = $authorizationService; |
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$this->responseFactory = $responseFactory ?? Psr17FactoryDiscovery::findResponseFactory(); |
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$this->client = $client; |
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$this->randomBytes = $randomBytes; |
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} |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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$authRequest = $request->getAttribute(AuthRequestInterface::class); |
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if (! $authRequest instanceof AuthRequestInterface) { |
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throw new RuntimeException('Unable to find a valid attribute for ' . AuthRequestInterface::class); |
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} |
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/** @var null|AuthSessionInterface $authSession */ |
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$authSession = $request->getAttribute(AuthSessionInterface::class); |
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if ($authSession instanceof AuthSessionInterface) { |
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$state = $authRequest->getState() ?? base64url_encode(random_bytes($this->randomBytes)); |
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$nonce = $authRequest->getNonce() ?? base64url_encode(random_bytes($this->randomBytes)); |
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$authSession->setState($state); |
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$authSession->setNonce($nonce); |
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$authRequest = $authRequest->withParams(['state' => $state]); |
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$authRequest = $authRequest->withParams(['nonce' => $nonce]); |
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} |
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$client = $this->client ?? $request->getAttribute(ClientInterface::class); |
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if (! $client instanceof ClientInterface) { |
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throw new LogicException('No OpenID client provided'); |
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} |
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$uri = $this->authorizationService->getAuthorizationUri($client, $authRequest->createParams()); |
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return $this->responseFactory->createResponse(302) |
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->withHeader('location', $uri); |
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} |
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} |
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facile-it /
php-openid-client
