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<?php |
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namespace BenTools\MercurePHP\Hub; |
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use BenTools\MercurePHP\Controller\AbstractController; |
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use BenTools\MercurePHP\Exception\Http\HttpException; |
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use BenTools\MercurePHP\Exception\Http\NotFoundHttpException; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Ramsey\Uuid\Uuid; |
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use React\Http\Message\Response; |
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use React\Promise\PromiseInterface; |
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use function React\Promise\resolve; |
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final class RequestHandler |
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{ |
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private const CLIENT_NAMESPACE = '530344d8-a802-11ea-bb37-0242ac130002'; |
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private array $controllers; |
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public function __construct(array $controllers) |
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{ |
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$this->controllers = (fn(AbstractController ...$controllers) => $controllers)(...$controllers); |
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} |
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public function handle(ServerRequestInterface $request): PromiseInterface |
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{ |
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try { |
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$request = $this->withClientId($request); |
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$handle = $this->getController($request); |
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return $handle($request); |
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} catch (HttpException $e) { |
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return resolve( |
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new Response( |
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$e->getStatusCode(), |
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['Content-Type' => 'text/plain'], |
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$e->getMessage(), |
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) |
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); |
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} |
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} |
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private function getController(ServerRequestInterface $request): AbstractController |
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{ |
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foreach ($this->controllers as $controller) { |
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if (!$controller->matchRequest($request)) { |
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continue; |
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} |
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return $controller; |
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} |
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throw new NotFoundHttpException('Not found.'); |
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} |
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private function withClientId(ServerRequestInterface $request): ServerRequestInterface |
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{ |
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if (null === $request->getAttribute('clientId')) { |
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$serverParams = $request->getServerParams(); |
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$clientId = Uuid::uuid5( |
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self::CLIENT_NAMESPACE, |
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($serverParams['REMOTE_ADDR'] ?? '') . ':' . ($serverParams['REMOTE_PORT'] ?? '') |
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); |
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$request = $request->withAttribute('clientId', $clientId); |
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} |
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return $request; |
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} |
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} |
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