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<?php |
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namespace Psr7Middlewares\Middleware; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr7Middlewares\Transformers; |
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use Psr7Middlewares\Utils; |
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/** |
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* Middleware to parse the body. |
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*/ |
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class Payload |
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{ |
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use Utils\ResolverTrait; |
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/** @var mixed[] */ |
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private $options; |
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/** |
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* @var bool Whether or not Middleware\Payload has precedence over existing parsed bodies. |
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*/ |
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private $overrideExistingParsedBody = false; |
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/** |
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* Payload constructor. |
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* |
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* @param mixed[] $options |
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*/ |
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public function __construct(array $options = []) |
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{ |
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$this->options = $options; |
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} |
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/** |
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* If the Request object already has a parsedBody, normally Payload will skip parsing. This is not always |
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* desirable behavior. Calling this setter allows you to override this behavior. |
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*/ |
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public function overrideExistingParsedBody() |
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{ |
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$this->overrideExistingParsedBody = true; |
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} |
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/** |
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* Execute the middleware. |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @param callable $next |
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* |
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* @return ResponseInterface |
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*/ |
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public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) |
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{ |
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$parsableMethods = ['POST', 'PUT', 'PATCH', 'DELETE', 'COPY', 'LOCK', 'UNLOCK']; |
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if ( |
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($this->overrideExistingParsedBody || !$request->getParsedBody()) && |
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in_array($request->getMethod(), $parsableMethods, true) |
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) { |
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$resolver = $this->resolver ?: new Transformers\BodyParser($this->options); |
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$transformer = $resolver->resolve(trim($request->getHeaderLine('Content-Type'))); |
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if ($transformer) { |
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try { |
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$request = $request->withParsedBody($transformer($request->getBody())); |
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} catch (\Exception $exception) { |
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return $response->withStatus(400); |
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} |
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} |
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} |
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return $next($request, $response); |
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} |
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} |
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oscarotero /
psr7-middlewares
