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<?php |
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declare(strict_types=1); |
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namespace SlayerBirden\DataFlowServer\Authentication\Middleware; |
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use Doctrine\Common\Collections\Criteria; |
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use Doctrine\Common\Collections\Selectable; |
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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\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use SlayerBirden\DataFlowServer\Authentication\Entities\Token; |
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use SlayerBirden\DataFlowServer\Stdlib\ResponseFactory; |
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use Zend\Expressive\Router\RouteResult; |
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final class TokenMiddleware implements MiddlewareInterface |
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{ |
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const USER_PARAM = 'currentUser'; |
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/** |
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* @var Selectable |
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*/ |
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private $tokenRepository; |
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public function __construct(Selectable $tokenRepository) |
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{ |
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$this->tokenRepository = $tokenRepository; |
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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 $handler): ResponseInterface |
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{ |
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$authorization = $request->getHeader('Authorization'); |
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if (empty($authorization)) { |
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return (new ResponseFactory())('Empty Authorization header. Access denied.', 401); |
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} |
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$token = $this->getToken((string)reset($authorization)); |
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if (!$token || !$token->isActive() || ($token->getDue() < new \DateTime())) { |
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return (new ResponseFactory())('Token is absent or invalid. Access denied.', 401); |
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} |
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// check ACL |
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$routeResult = $request->getAttribute(RouteResult::class, false); |
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if (false === $routeResult) { |
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// Can not perform ACL check |
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return $handler->handle($request); |
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} |
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$routeName = $routeResult->getMatchedRouteName(); |
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foreach ($token->getGrants() as $grant) { |
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if ($grant->getResource() === $routeName) { |
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return $handler->handle($request->withAttribute(self::USER_PARAM, $token->getOwner())); |
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} |
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} |
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return (new ResponseFactory())('The permission to resource is not granted.', 403); |
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} |
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private function getToken(string $authorization): ?Token |
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{ |
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$token = str_replace('Bearer ', '', $authorization); |
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$tokens = $this->tokenRepository->matching( |
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Criteria::create()->where(Criteria::expr()->eq('token', $token)) |
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); |
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if ($tokens->count()) { |
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return $tokens->first(); |
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} |
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return null; |
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} |
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} |
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SlayerBirden /
dataflow-server
