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<?php |
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namespace Dontdrinkandroot\RestBundle\Service; |
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use Doctrine\Common\Util\ClassUtils; |
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use Doctrine\DBAL\Types\Type; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Dontdrinkandroot\RestBundle\Metadata\Annotation\Method; |
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use Dontdrinkandroot\RestBundle\Metadata\Annotation\Right; |
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use Dontdrinkandroot\RestBundle\Metadata\PropertyMetadata; |
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use Metadata\MetadataFactory; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\PropertyAccess\PropertyAccessor; |
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use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface; |
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/** |
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* @author Philip Washington Sorst <[email protected]> |
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*/ |
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class RestRequestParser |
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{ |
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/** |
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* @var MetadataFactory |
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*/ |
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private $metadataFactory; |
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/** |
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* @var PropertyAccessor |
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*/ |
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private $propertyAccessor; |
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/** |
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* @var AuthorizationCheckerInterface|null |
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*/ |
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private $authorizationChecker; |
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/** |
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* @var EntityManagerInterface |
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*/ |
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private $entityManager; |
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public function __construct( |
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MetadataFactory $metadataFactory, |
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PropertyAccessor $propertyAccessor, |
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EntityManagerInterface $entityManager |
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) { |
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$this->metadataFactory = $metadataFactory; |
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$this->propertyAccessor = $propertyAccessor; |
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$this->entityManager = $entityManager; |
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} |
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/** |
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* @param Request $request |
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* @param string $entityClass |
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* @param object|null $entity |
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* |
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* @return object |
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*/ |
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public function parseEntity( |
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Request $request, |
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$entityClass, |
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$entity = null |
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) { |
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$method = $request->getMethod(); |
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$format = $request->getRequestFormat(); |
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if ('json' !== $format) { |
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throw new \RuntimeException(sprintf('Unsupported format "%s"', $format)); |
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} |
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$data = $this->getRequestContent($request); |
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if (null === $entity) { |
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$entity = new $entityClass; |
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} |
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$this->updateObject($entity, $method, $data); |
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return $entity; |
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} |
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/** |
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* @param Request $request |
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* |
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* @return array |
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*/ |
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protected function getRequestContent(Request $request) |
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{ |
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$content = $request->getContent(); |
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if ('' !== $content) { |
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return json_decode($content, true); |
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} |
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return $request->request->all(); |
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} |
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/** |
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* @param object $object Access by reference. |
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* @param string $method |
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* @param array $data |
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*/ |
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protected function updateObject( |
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&$object, |
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$method, |
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$data |
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) { |
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$classMetadata = $this->metadataFactory->getMetadataForClass(ClassUtils::getClass($object)); |
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foreach ($data as $key => $value) { |
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if (array_key_exists($key, $classMetadata->propertyMetadata)) { |
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/** @var PropertyMetadata $propertyMetadata */ |
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$propertyMetadata = $classMetadata->propertyMetadata[$key]; |
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if ($this->isUpdateable($object, $method, $propertyMetadata)) { |
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$this->updateProperty($object, $method, $propertyMetadata, $value); |
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} |
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} |
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} |
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} |
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/** |
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* @param object $object Access by reference. |
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* @param string $method |
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* @param PropertyMetadata $propertyMetadata |
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* @param mixed $value |
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*/ |
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protected function updateProperty( |
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&$object, |
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string $method, |
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PropertyMetadata $propertyMetadata, |
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$value |
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) { |
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$byReference = $this->isUpdateableByReference($propertyMetadata, $method); |
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if ($byReference) { |
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$this->updateByReference($object, $propertyMetadata, $value); |
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} elseif (array_key_exists($propertyMetadata->getType(), Type::getTypesMap())) { |
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$convertedValue = $this->convert($propertyMetadata->getType(), $value); |
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$this->propertyAccessor->setValue($object, $propertyMetadata->name, $convertedValue); |
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} else { |
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$this->updatePropertyObject($object, $method, $propertyMetadata, $value); |
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} |
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} |
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private function updateByReference(&$object, PropertyMetadata $propertyMetadata, $value) |
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{ |
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if (null === $value) { |
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$this->propertyAccessor->setValue($object, $propertyMetadata->name, null); |
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} else { |
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$type = $propertyMetadata->getType(); |
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$classMetadata = $this->entityManager->getClassMetadata($type); |
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$identifiers = $classMetadata->getIdentifier(); |
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$id = []; |
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foreach ($identifiers as $idName) { |
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$id[$idName] = $value[$idName]; |
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} |
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$reference = $this->entityManager->getReference($type, $id); |
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$this->propertyAccessor->setValue($object, $propertyMetadata->name, $reference); |
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} |
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} |
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protected function updatePropertyObject( |
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&$object, |
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string $method, |
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PropertyMetadata $propertyMetadata, |
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$value |
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) { |
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$propertyObject = $this->propertyAccessor->getValue($object, $propertyMetadata->name); |
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if (null === $propertyObject) { |
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$type = $propertyMetadata->getType(); |
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$propertyObject = new $type; |
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} |
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$this->updateObject($propertyObject, $method, $value); |
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$this->propertyAccessor->setValue($object, $propertyMetadata->name, $propertyObject); |
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} |
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/** |
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* @param string $method |
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* @param object $object |
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* @param PropertyMetadata $propertyMetadata |
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* |
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* @return bool |
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*/ |
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protected function isUpdateable( |
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$object, |
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string $method, |
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PropertyMetadata $propertyMetadata |
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): bool { |
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if ((Request::METHOD_PUT === $method || Request::METHOD_PATCH === $method) && $propertyMetadata->isPuttable()) { |
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return $this->isGranted($object, $propertyMetadata->getPuttable()->right); |
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} |
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if (Request:: METHOD_POST === $method && $propertyMetadata->isPostable()) { |
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return $this->isGranted($object, $propertyMetadata->getPostable()->right); |
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} |
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return false; |
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} |
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private function isGranted($object, ?Right $right): bool |
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{ |
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if (null === $right) { |
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return true; |
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} |
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/* If no Security is enabled always deny access */ |
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if (null === $this->authorizationChecker) { |
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return false; |
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} |
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$propertyPath = $right->propertyPath; |
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if (null === $propertyPath) { |
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return $this->authorizationChecker->isGranted($right->attributes); |
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} else { |
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$subject = $this->resolveSubject($object, $propertyPath); |
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return $this->authorizationChecker->isGranted($right->attributes, $subject); |
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} |
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} |
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private function resolveSubject($entity, $propertyPath) |
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{ |
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if ('this' === $propertyPath) { |
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return $entity; |
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} |
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return $this->propertyAccessor->getValue($entity, $propertyPath); |
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} |
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private function convert(?string $type, $value) |
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{ |
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if (null === $value) { |
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return $value; |
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} |
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switch ($type) { |
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case 'datetime': |
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case 'date': |
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case 'time': |
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return new \DateTime($value); |
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default: |
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return $value; |
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} |
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} |
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private function isUpdateableByReference(PropertyMetadata $propertyMetadata, string $method) |
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{ |
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if ( |
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Method::PUT === $method |
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&& null !== $propertyMetadata->getPuttable() && true === $propertyMetadata->getPuttable()->byReference |
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) { |
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return true; |
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} |
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if ( |
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Method::POST === $method |
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&& null !== $propertyMetadata->getPostable() && true === $propertyMetadata->getPostable()->byReference |
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) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* @param AuthorizationCheckerInterface $authorizationChecker |
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*/ |
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public function setAuthorizationChecker(AuthorizationCheckerInterface $authorizationChecker) |
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{ |
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$this->authorizationChecker = $authorizationChecker; |
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} |
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} |
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