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<?php declare(strict_types=1); |
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/** |
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* It's free open-source software released under the MIT License. |
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* |
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* @author Anatoly Fenric <[email protected]> |
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* @copyright Copyright (c) 2018, Anatoly Fenric |
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* @license https://github.com/sunrise-php/http-router/blob/master/LICENSE |
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* @link https://github.com/sunrise-php/http-router |
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*/ |
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namespace Sunrise\Http\Router\Middleware; |
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/** |
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* Import classes |
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*/ |
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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 Sunrise\Http\Router\Exception\UndecodablePayloadException; |
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/** |
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* Import functions |
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*/ |
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use function json_decode; |
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use function json_last_error; |
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use function json_last_error_msg; |
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use function rtrim; |
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use function strpos; |
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use function substr; |
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/** |
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* Import constants |
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*/ |
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use const JSON_BIGINT_AS_STRING; |
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use const JSON_ERROR_NONE; |
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/** |
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* JsonPayloadDecodingMiddleware |
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* |
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* @since 2.15.0 |
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*/ |
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class JsonPayloadDecodingMiddleware implements MiddlewareInterface |
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{ |
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/** |
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* JSON Media Type |
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* |
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* @var string |
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* |
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* @link https://datatracker.ietf.org/doc/html/rfc4627 |
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*/ |
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private const JSON_MEDIA_TYPE = 'application/json'; |
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/** |
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* JSON decoding options |
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* |
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* @var int |
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* |
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* @link https://www.php.net/manual/ru/json.constants.php |
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*/ |
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protected const JSON_DECODING_OPTIONS = JSON_BIGINT_AS_STRING; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler) : ResponseInterface |
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{ |
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if (!$this->isSupportedRequest($request)) { |
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return $handler->handle($request); |
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} |
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$parsedBody = $this->decodeRequestJsonPayload($request); |
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return $handler->handle($request->withParsedBody($parsedBody)); |
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} |
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/** |
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* Checks if the given request is supported |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return bool |
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*/ |
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private function isSupportedRequest(ServerRequestInterface $request) : bool |
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{ |
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return self::JSON_MEDIA_TYPE === $this->getRequestMediaType($request); |
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} |
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/** |
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* Gets Media Type from the given request |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return string|null |
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* |
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* @link https://tools.ietf.org/html/rfc7231#section-3.1.1.1 |
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*/ |
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private function getRequestMediaType(ServerRequestInterface $request) : ?string |
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{ |
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if (!$request->hasHeader('Content-Type')) { |
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return null; |
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} |
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// type "/" subtype *( OWS ";" OWS parameter ) |
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$mediaType = $request->getHeaderLine('Content-Type'); |
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$semicolonPosition = strpos($mediaType, ';'); |
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if (false === $semicolonPosition) { |
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return $mediaType; |
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} |
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return rtrim(substr($mediaType, 0, $semicolonPosition)); |
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} |
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/** |
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* Tries to decode the given request's JSON payload |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return mixed |
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* |
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* @throws UndecodablePayloadException |
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* If the request's payload cannot be decoded. |
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*/ |
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private function decodeRequestJsonPayload(ServerRequestInterface $request) |
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{ |
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json_decode(''); |
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$result = json_decode($request->getBody()->__toString(), true, 512, static::JSON_DECODING_OPTIONS); |
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if (JSON_ERROR_NONE === json_last_error()) { |
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return $result; |
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} |
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1 |
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throw new UndecodablePayloadException(sprintf('Invalid Payload: %s', json_last_error_msg())); |
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} |
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} |
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sunrise-php /
http-router
