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<?php |
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namespace App\Middleware; |
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use App\Support\Validation\ValidationException; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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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 ValidationMiddleware implements MiddlewareInterface |
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{ |
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private ResponseFactoryInterface $responseFactory; |
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public function __construct(ResponseFactoryInterface $responseFactory) |
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{ |
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$this->responseFactory = $responseFactory; |
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} |
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public function process( |
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ServerRequestInterface $request, |
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RequestHandlerInterface $handler |
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): ResponseInterface { |
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try { |
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return $handler->handle($request); |
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} catch (ValidationException $exception) { |
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$response = $this->responseFactory->createResponse(); |
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$data = $this->transform($exception); |
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$json = (string)json_encode($data, JSON_UNESCAPED_SLASHES | JSON_PARTIAL_OUTPUT_ON_ERROR); |
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$response->getBody()->write($json); |
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return $response |
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->withStatus(422) |
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->withHeader('Content-Type', 'application/json'); |
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} |
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} |
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private function transform(ValidationException $exception): array |
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{ |
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$error = [ |
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'message' => $exception->getMessage(), |
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]; |
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$errors = $exception->getErrors(); |
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if ($errors) { |
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$error['details'] = $this->addErrors([], $errors); |
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} |
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return ['error' => $error]; |
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} |
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private function addErrors(array $result, array $errors, string $path = ''): array |
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{ |
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foreach ($errors as $field => $error) { |
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$oldPath = $path; |
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$path .= ($path === '' ? '' : '.') . $field; |
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$result = $this->addSubErrors($result, $error, $path); |
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$path = $oldPath; |
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} |
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return $result; |
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} |
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private function addSubErrors(array $result, array $error, string $path = ''): array |
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{ |
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foreach ($error as $field2 => $errorMessage) { |
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if (is_array($errorMessage)) { |
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$result = $this->addErrors($result, [$field2 => $errorMessage], $path); |
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} else { |
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$result[] = [ |
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'message' => $errorMessage, |
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'field' => $path, |
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]; |
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} |
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} |
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return $result; |
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} |
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} |
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odan /
slim4-skeleton
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.