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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/security-interop project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\Security\Middleware; |
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use Daikon\Boot\Middleware\RoutingHandler; |
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use Daikon\Config\ConfigProviderInterface; |
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use Daikon\Interop\Assertion; |
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use Daikon\Security\Authentication\AuthenticatorInterface; |
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use Daikon\Security\Authentication\JwtAuthenticationServiceInterface; |
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use Daikon\Security\Exception\AuthenticationException; |
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use Daikon\Security\Middleware\Action\SecureActionInterface; |
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use Fig\Http\Message\StatusCodeInterface; |
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use Middlewares\Utils\Factory; |
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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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final class JwtAuthenticator implements MiddlewareInterface, StatusCodeInterface |
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{ |
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public const ATTR_AUTHENTICATOR = '_authenticator'; |
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private ConfigProviderInterface $config; |
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private JwtAuthenticationServiceInterface $authenticationService; |
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public function __construct( |
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ConfigProviderInterface $config, |
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JwtAuthenticationServiceInterface $authenticationService |
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) { |
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$this->config = $config; |
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$this->authenticationService = $authenticationService; |
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} |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$authConfig = $this->config->get('project.authentication', []); |
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Assertion::true( |
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is_a($authConfig['default_role'], AuthenticatorInterface::class, true), |
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sprintf("Authentication default role must implement '%s'.", AuthenticatorInterface::class) |
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); |
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$jwtAttribute = $authConfig['jwt']['attribute'] ?? JwtDecoder::DEFAULT_ATTR_JWT; |
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$xsrfAttribute = $authConfig['xsrf']['attribute'] ?? JwtDecoder::DEFAULT_ATTR_XSRF; |
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$jwt = $request->getAttribute($jwtAttribute); |
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$xsrfToken = $request->getAttribute($xsrfAttribute); |
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try { |
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if ($this->isSecure($request)) { |
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if (!$jwt) { |
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throw new AuthenticationException('Missing JWT.'); |
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} |
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if (!$xsrfToken) { |
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throw new AuthenticationException('Missing XSRF token.'); |
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} |
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} |
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if ($jwt) { |
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if (!$jwt->uid || !$jwt->jti) { |
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throw new AuthenticationException('Invalid JWT.'); |
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} |
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if ($jwt->xsrf !== $xsrfToken) { |
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throw new AuthenticationException('XSRF token does not match JWT.'); |
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} |
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/** @var AuthenticatorInterface $authenticator */ |
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$authenticator = $this->authenticationService->authenticateJWT($jwt->uid, $jwt->jti, $jwt->xsrf); |
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} |
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} catch (AuthenticationException $error) { |
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return Factory::createResponse(self::STATUS_UNAUTHORIZED); |
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} |
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return $handler->handle( |
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$request->withAttribute(self::ATTR_AUTHENTICATOR, $authenticator ?? new $authConfig['default_role']) |
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); |
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} |
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private function isSecure(ServerRequestInterface $request): bool |
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{ |
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$requestHandler = $request->getAttribute(RoutingHandler::ATTR_REQUEST_HANDLER); |
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return $requestHandler instanceof SecureActionInterface |
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? $requestHandler->isSecure() |
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: false; |
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} |
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} |
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daikon-cqrs /
security-interop
