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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\Action\ActionInterface; |
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use Daikon\Boot\Middleware\Action\ResponderInterface; |
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use Daikon\Boot\Middleware\Action\ValidatorInterface; |
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use Daikon\Boot\Middleware\ActionHandler; |
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use Daikon\Boot\Middleware\ResolvesDependency; |
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use Daikon\Boot\Middleware\RoutingHandler; |
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use Daikon\Interop\AssertionFailedException; |
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use Daikon\Interop\RuntimeException; |
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use Daikon\Security\Exception\AuthenticationException; |
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use Daikon\Security\Exception\AuthorizationException; |
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use Daikon\Security\Middleware\Action\SecureActionInterface; |
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use Exception; |
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use Fig\Http\Message\StatusCodeInterface; |
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use Middlewares\Utils\Factory; |
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use Psr\Container\ContainerInterface; |
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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 Psr\Log\LoggerInterface; |
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final class SecureActionHandler implements MiddlewareInterface, StatusCodeInterface |
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{ |
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use ResolvesDependency; |
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private ContainerInterface $container; |
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private LoggerInterface $logger; |
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public function __construct(ContainerInterface $container, LoggerInterface $logger) |
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{ |
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$this->container = $container; |
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$this->logger = $logger; |
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} |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$requestHandler = $request->getAttribute(RoutingHandler::ATTR_REQUEST_HANDLER); |
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return $requestHandler instanceof ActionInterface |
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? $this->executeAction($requestHandler, $request) |
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: $handler->handle($request); |
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} |
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private function executeAction(ActionInterface $action, ServerRequestInterface $request): ResponseInterface |
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{ |
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// Check action access first before running validation |
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if ($action instanceof SecureActionInterface) { |
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if (!$action->isAuthorized($request)) { |
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return Factory::createResponse(self::STATUS_FORBIDDEN); |
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} |
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} |
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$request = $action->registerValidator($request); |
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if ($validator = $this->getValidator($request)) { |
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$request = $validator($request); |
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} |
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if (!empty($request->getAttribute(ActionHandler::ATTR_ERRORS))) { |
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$request = $action->handleError( |
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$request->withAttribute( |
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ActionHandler::ATTR_STATUS_CODE, |
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$request->getAttribute(ActionHandler::ATTR_STATUS_CODE, self::STATUS_UNPROCESSABLE_ENTITY) |
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) |
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); |
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} else { |
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// Run secondary resource authorization after validation |
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if ($action instanceof SecureActionInterface) { |
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if (!$action->isAuthorized($request)) { |
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return Factory::createResponse(self::STATUS_FORBIDDEN); |
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} |
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} |
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try { |
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$request = $action($request); |
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} catch (Exception $error) { |
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$this->logger->error($error->getMessage(), ['exception' => $error]); |
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switch (true) { |
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case $error instanceof AssertionFailedException: |
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$statusCode = self::STATUS_UNPROCESSABLE_ENTITY; |
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break; |
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case $error instanceof AuthenticationException: |
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$statusCode = self::STATUS_UNAUTHORIZED; |
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break; |
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case $error instanceof AuthorizationException: |
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$statusCode = self::STATUS_FORBIDDEN; |
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break; |
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default: |
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$statusCode = self::STATUS_INTERNAL_SERVER_ERROR; |
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} |
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$request = $action->handleError( |
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$request |
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->withAttribute(ActionHandler::ATTR_STATUS_CODE, $statusCode) |
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->withAttribute(ActionHandler::ATTR_ERRORS, $error) |
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); |
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} |
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} |
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if (!$responder = $this->getResponder($request)) { |
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throw $error ?? new RuntimeException( |
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sprintf("Unable to determine responder for '%s'.", get_class($action)) |
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); |
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} |
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return $responder($request); |
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} |
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private function getValidator(ServerRequestInterface $request): ?callable |
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{ |
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return ($validator = $request->getAttribute(ActionHandler::ATTR_VALIDATOR)) |
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? $this->resolve($this->container, $validator, ValidatorInterface::class) |
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: null; |
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} |
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private function getResponder(ServerRequestInterface $request): ?callable |
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{ |
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return ($responder = $request->getAttribute(ActionHandler::ATTR_RESPONDER)) |
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? $this->resolve($this->container, $responder, ResponderInterface::class) |
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: null; |
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} |
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} |
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daikon-cqrs /
security-interop
