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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2018 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace OAuth2Framework\Component\IssuerDiscoveryEndpoint; |
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use Http\Message\ResponseFactory; |
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use OAuth2Framework\Component\IssuerDiscoveryEndpoint\IdentifierResolver\IdentifierResolverManager; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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class IssuerDiscoveryEndpoint implements MiddlewareInterface |
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{ |
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private const REL_NAME = 'http://openid.net/specs/connect/1.0/issuer'; |
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/** |
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* @var ResourceRepository |
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*/ |
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private $resourceManager; |
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/** |
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* @var ResponseFactory |
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*/ |
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private $responseFactory; |
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/** |
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* @var IdentifierResolverManager |
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*/ |
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private $identifierResolverManager; |
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/** |
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* @var string |
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*/ |
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private $domain; |
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/** |
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* @var int |
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*/ |
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private $port; |
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/** |
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* IssuerDiscoveryEndpoint constructor. |
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* |
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* @param ResourceRepository $resourceManager |
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* @param ResponseFactory $responseFactory |
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* @param IdentifierResolverManager $identifierResolverManager |
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* @param string $domain |
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* @param int $port |
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*/ |
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public function __construct(ResourceRepository $resourceManager, ResponseFactory $responseFactory, IdentifierResolverManager $identifierResolverManager, string $domain, int $port) |
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{ |
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$this->resourceManager = $resourceManager; |
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$this->responseFactory = $responseFactory; |
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$this->identifierResolverManager = $identifierResolverManager; |
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$this->domain = $domain; |
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$this->port = $port; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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try { |
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$this->checkRel($request); |
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$resourceName = $this->getResourceName($request); |
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$resourceId = $this->getResourceId($resourceName); |
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$resource = $this->resourceManager->find($resourceId); |
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if (null === $resource) { |
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throw new \InvalidArgumentException(sprintf('The resource identified with "%s" does not exist or is not supported by this server.', $resourceName), 400); |
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} |
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$data = $this->getResourceData($resourceName, $resource); |
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$response = $this->responseFactory->createResponse(200); |
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$headers = [ |
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'Content-Type' => 'application/jrd+json; charset=UTF-8', |
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]; |
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$response->getBody()->write(json_encode($data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)); |
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} catch (\InvalidArgumentException $e) { |
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$response = $this->responseFactory->createResponse($e->getCode()); |
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$headers = [ |
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'Content-Type' => 'application/json; charset=UTF-8', |
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]; |
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$response->getBody()->write(json_encode(['error' => 'invalid_request', 'error_description' => $e->getMessage()], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)); |
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} |
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$headers['Cache-Control'] = 'no-cache, no-store, max-age=0, must-revalidate, private'; |
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$headers['Pragma'] = 'no-cache'; |
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foreach ($headers as $k => $v) { |
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$response = $response->withHeader($k, $v); |
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} |
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return $response; |
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} |
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/** |
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* @param string $resourceName |
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* @param ResourceObject $resource |
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* |
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* @return array |
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*/ |
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private function getResourceData(string $resourceName, ResourceObject $resource): array |
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{ |
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return [ |
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'subject' => $resourceName, |
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'links' => [ |
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[ |
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'rel' => self::REL_NAME, |
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'href' => $resource->getIssuer(), |
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], |
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], |
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]; |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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private function checkRel(ServerRequestInterface $request) |
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{ |
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$query_params = $request->getQueryParams() ?? []; |
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if (!array_key_exists('rel', $query_params)) { |
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throw new \InvalidArgumentException('The parameter "rel" is mandatory.', 400); |
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} |
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if (self::REL_NAME !== $query_params['rel']) { |
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throw new \InvalidArgumentException('Unsupported "rel" parameter value.', 400); |
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} |
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} |
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/** |
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* @param string $resourceName |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return ResourceId |
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*/ |
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private function getResourceId(string $resourceName): ResourceId |
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{ |
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try { |
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$identifier = $this->identifierResolverManager->resolve($resourceName); |
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} catch (\Exception $e) { |
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throw new \InvalidArgumentException(sprintf('The resource identified with "%s" does not exist or is not supported by this server.', $resourceName), 400, $e); |
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} |
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if ($this->domain !== $identifier->getDomain()) { |
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throw new \InvalidArgumentException(sprintf('The resource identified with "%s" does not exist or is not supported by this server.', $resourceName), 400); |
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} |
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if ($identifier->getPort() !== null && $this->port !== $identifier->getPort()) { |
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throw new \InvalidArgumentException(sprintf('The resource identified with "%s" does not exist or is not supported by this server.', $resourceName), 400); |
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} |
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return ResourceId::create($identifier->getUsername()); |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return string |
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*/ |
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private function getResourceName(ServerRequestInterface $request): string |
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{ |
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$query_params = $request->getQueryParams() ?? []; |
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if (!array_key_exists('resource', $query_params)) { |
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throw new \InvalidArgumentException('The parameter "resource" is mandatory.', 400); |
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} |
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return $query_params['resource']; |
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} |
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} |
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OAuth2-Framework /
oauth2-framework
