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<?php |
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namespace Realshadow\RequestDeserializer\Http\Request; |
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use JMS\Serializer\EventDispatcher\Events; |
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use Mews\Purifier\Purifier; |
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use Realshadow\RequestDeserializer\Contracts\RequestInterface; |
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use Dingo\Api\Exception\ValidationHttpException; |
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use JMS\Serializer\EventDispatcher\EventSubscriberInterface; |
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use JMS\Serializer\EventDispatcher\PreDeserializeEvent; |
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use JsonSchema\Uri\UriRetriever; |
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use JsonSchema\Validator; |
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/** |
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* Handles request deserialization |
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* |
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* @package Realshadow\RequestDeserializer\Http\Request |
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* @author Lukáš Homza <[email protected]> |
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*/ |
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class RequestDeserializationHandler implements EventSubscriberInterface |
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{ |
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const NO_VALIDATE = 'no_validate'; |
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/** |
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* @var Validator $validator |
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*/ |
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private $validator; |
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/** |
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* @var Purifier $purifier |
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*/ |
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private $purifier; |
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/** |
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* Recursively converts object to array |
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* |
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* @param \stdClass $data |
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* |
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* @return array |
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*/ |
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private function pack(\stdClass $data) |
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{ |
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return json_decode(json_encode($data), true); |
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} |
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/** |
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* Recursively converts array to object |
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* |
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* @param array|\stdClass $data |
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* |
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* @return \stdClass |
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*/ |
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private function unpack($data) |
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{ |
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$data = json_decode(json_encode($data)); |
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return is_array($data) ? (object) $data : $data; |
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} |
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/** |
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* RequestDeserializationHandler constructor. |
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* |
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* @param Validator $validator |
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* @param Purifier $purifier |
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*/ |
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public function __construct(Validator $validator, Purifier $purifier) |
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{ |
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$this->validator = $validator; |
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$this->purifier = $purifier; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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['event' => Events::PRE_DESERIALIZE, 'method' => 'sanitize'], |
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['event' => Events::PRE_DESERIALIZE, 'method' => 'validate'], |
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]; |
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} |
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/** |
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* @param PreDeserializeEvent $event |
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* |
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* @return PreDeserializeEvent |
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*/ |
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public function sanitize(PreDeserializeEvent $event) |
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{ |
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$data = $this->purifier->clean($event->getData()); |
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if (is_array($data)) { |
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array_walk_recursive($data, function (&$value) { |
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$value = is_string($value) ? htmlspecialchars($value) : $value; |
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}); |
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} else { |
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$data = htmlspecialchars($data); |
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} |
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$event->setData($data); |
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return $event; |
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} |
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/** |
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* @param PreDeserializeEvent $event |
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* |
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* @return PreDeserializeEvent |
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* @throws \ReflectionException |
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* |
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* @throws \JsonSchema\Exception\ExceptionInterface |
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* @throws \Dingo\Api\Exception\ValidationHttpException |
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*/ |
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public function validate(PreDeserializeEvent $event) |
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{ |
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$shouldSkipValidation = $event->getContext() |
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->attributes |
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->get(static::NO_VALIDATE) |
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->getOrElse(false); |
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if ( ! $shouldSkipValidation) { |
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$entityClass = $event->getType()['name']; |
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/** @var RequestInterface $entity */ |
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$reflectionClass = new \ReflectionClass($entityClass); |
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if ( ! $reflectionClass->implementsInterface(RequestInterface::class)) { |
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return $event; |
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} |
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unset($reflectionClass); |
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$entity = app($entityClass); |
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$retriever = new UriRetriever(); |
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$schema = $retriever->retrieve('file://' . $entity->getSchema()); |
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$data = $event->getData(); |
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if ( ! $data) { |
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$data = new \stdClass; |
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} |
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$data = $this->unpack($data); |
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$this->validator->validate($data, $schema); |
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if ( ! $this->validator->isValid()) { |
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throw new ValidationHttpException($this->validator->getErrors()); |
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} |
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$event->setData( |
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$this->pack($data) |
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); |
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} |
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return $event; |
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} |
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} |
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realshadow /
request-deserializer
