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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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declare(strict_types=1); |
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namespace Spiral\Router; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Spiral\Core\CoreInterface; |
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use Spiral\Core\Exception\ControllerException; |
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use Spiral\Core\ScopeInterface; |
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use Spiral\Http\Exception\ClientException; |
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use Spiral\Http\Exception\ClientException\BadRequestException; |
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use Spiral\Http\Exception\ClientException\ForbiddenException; |
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use Spiral\Http\Exception\ClientException\NotFoundException; |
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use Spiral\Http\Exception\ClientException\UnauthorizedException; |
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use Spiral\Http\Stream\GeneratorStream; |
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use Spiral\Http\Traits\JsonTrait; |
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use Spiral\Router\Exception\HandlerException; |
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final class CoreHandler implements RequestHandlerInterface |
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{ |
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use JsonTrait; |
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private CoreInterface $core; |
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private ScopeInterface $scope; |
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private ?string $controller = null; |
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private ?string $action = null; |
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private ?bool $verbActions = null; |
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private ?array $parameters = null; |
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private ResponseFactoryInterface $responseFactory; |
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public function __construct( |
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CoreInterface $core, |
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ScopeInterface $scope, |
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ResponseFactoryInterface $responseFactory |
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) { |
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$this->core = $core; |
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$this->scope = $scope; |
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$this->responseFactory = $responseFactory; |
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} |
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/** |
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* @param string|null $action |
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*/ |
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public function withContext(string $controller, string $action, array $parameters): CoreHandler |
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{ |
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$handler = clone $this; |
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$handler->controller = $controller; |
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$handler->action = $action; |
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$handler->parameters = $parameters; |
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return $handler; |
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} |
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/** |
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* Disable or enable HTTP prefix for actions. |
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*/ |
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public function withVerbActions(bool $verbActions): CoreHandler |
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{ |
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$handler = clone $this; |
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$handler->verbActions = $verbActions; |
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return $handler; |
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} |
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/** |
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* @inheritdoc |
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* |
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* @psalm-suppress UnusedVariable |
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* @throws \Throwable |
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*/ |
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public function handle(Request $request): Response |
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{ |
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if ($this->controller === null) { |
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throw new HandlerException('Controller and action pair is not set'); |
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} |
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$outputLevel = ob_get_level(); |
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ob_start(); |
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$output = $result = null; |
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$response = $this->responseFactory->createResponse(200); |
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try { |
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// run the core withing PSR-7 Request/Response scope |
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$result = $this->scope->runScope( |
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[ |
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Request::class => $request, |
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Response::class => $response, |
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], |
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fn () => $this->core->callAction( |
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$this->controller, |
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$this->getAction($request), |
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$this->parameters |
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) |
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); |
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} catch (ControllerException $e) { |
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ob_get_clean(); |
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throw $this->mapException($e); |
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} catch (\Throwable $e) { |
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ob_get_clean(); |
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throw $e; |
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} finally { |
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while (ob_get_level() > $outputLevel + 1) { |
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$output = ob_get_clean() . $output; |
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} |
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} |
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return $this->wrapResponse( |
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$response, |
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$result, |
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ob_get_clean() . $output |
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); |
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} |
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private function getAction(Request $request): string |
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{ |
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if ($this->verbActions) { |
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return strtolower($request->getMethod()) . ucfirst($this->action); |
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} |
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return $this->action; |
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} |
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/** |
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* Convert endpoint result into valid response. |
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* |
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* @param Response $response Initial pipeline response. |
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* @param mixed $result Generated endpoint output. |
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* @param string $output Buffer output. |
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*/ |
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private function wrapResponse(Response $response, $result = null, string $output = ''): Response |
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{ |
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if ($result instanceof Response) { |
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if ($output !== '' && $result->getBody()->isWritable()) { |
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$result->getBody()->write($output); |
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} |
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return $result; |
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} |
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if ($result instanceof \Generator) { |
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return $response->withBody(new GeneratorStream($result)); |
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} |
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if (\is_array($result) || $result instanceof \JsonSerializable) { |
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$response = $this->writeJson($response, $result); |
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} else { |
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$response->getBody()->write((string)$result); |
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} |
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//Always glue buffered output |
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$response->getBody()->write($output); |
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return $response; |
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} |
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/** |
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* Converts core specific ControllerException into HTTP ClientException. |
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*/ |
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private function mapException(ControllerException $exception): ClientException |
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{ |
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switch ($exception->getCode()) { |
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case ControllerException::BAD_ACTION: |
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case ControllerException::NOT_FOUND: |
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return new NotFoundException($exception->getMessage()); |
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case ControllerException::FORBIDDEN: |
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return new ForbiddenException($exception->getMessage()); |
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case ControllerException::UNAUTHORIZED: |
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return new UnauthorizedException($exception->getMessage()); |
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default: |
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return new BadRequestException($exception->getMessage()); |
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} |
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} |
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} |
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spiral /
framework
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