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<?php |
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declare(strict_types=1); |
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namespace Silverback\ApiComponentBundle\Serializer; |
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use Silverback\ApiComponentBundle\DataTransformer\DataTransformerInterface; |
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use Silverback\ApiComponentBundle\Entity\Content\AbstractContent; |
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use Silverback\ApiComponentBundle\Entity\RestrictedResourceInterface; |
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use Symfony\Component\Security\Core\Security; |
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use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface; |
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use Symfony\Component\Serializer\Normalizer\ContextAwareNormalizerInterface; |
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use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface; |
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use Symfony\Component\Serializer\Normalizer\NormalizerAwareTrait; |
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class ApiNormalizer implements ContextAwareNormalizerInterface, NormalizerAwareInterface, CacheableSupportsMethodInterface |
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{ |
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use NormalizerAwareTrait; |
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private const ALREADY_CALLED = 'API_COMPONENT_BUNDLE_NORMALIZER_ALREADY_CALLED'; |
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/** @var iterable|DataTransformerInterface[] */ |
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private $dataTransformers; |
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/** @var DataTransformerInterface[] */ |
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private $supportedTransformers = []; |
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private $security; |
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public function __construct(iterable $dataTransformers = [], Security $security) |
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{ |
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$this->dataTransformers = $dataTransformers; |
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$this->security = $security; |
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} |
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private function isRestrictedResource($data): ?RestrictedResourceInterface |
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{ |
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if ($data instanceof RestrictedResourceInterface && !$data instanceof AbstractContent) { |
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return $data; |
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} |
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return null; |
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} |
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public function supportsNormalization($data, $format = null, array $context = []): bool |
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{ |
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if (!is_object($data) || isset($context[self::ALREADY_CALLED])) { |
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return false; |
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} |
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if ($this->isRestrictedResource($data)) { |
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return true; |
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} |
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$this->supportedTransformers = []; |
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foreach ($this->dataTransformers as $transformer) { |
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if ($transformer->supportsTransformation($data)) { |
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$this->supportedTransformers[] = $transformer; |
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} |
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} |
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return !empty($this->supportedTransformers); |
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} |
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private function rolesVote(iterable $roles): bool |
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{ |
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$negativeRoles = []; |
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$positiveRoles = []; |
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foreach ($roles as $role) { |
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if (strpos($role, '!') === 0) { |
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$negativeRoles[] = substr($role, 1); |
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continue; |
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} |
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$positiveRoles[] = $role; |
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} |
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$positivePass = count($positiveRoles) && $this->security->isGranted($positiveRoles); |
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$negativePass = count($negativeRoles) && !$this->security->isGranted($negativeRoles); |
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return $positivePass || $negativePass; |
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} |
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public function normalize($object, $format = null, array $context = []) |
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{ |
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if ( |
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($restrictedResource = $this->isRestrictedResource($object)) && |
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($roles = $restrictedResource->getSecurityRoles()) !== null && |
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!$this->rolesVote($roles) |
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) { |
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return null; |
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} |
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foreach ($this->supportedTransformers as $transformer) { |
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$transformer->transform($object, $context); |
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} |
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$context[self::ALREADY_CALLED] = true; |
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return $this->normalizer->normalize($object, $format, $context); |
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} |
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public function hasCacheableSupportsMethod(): bool |
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{ |
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return false; |
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} |
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} |
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components-web-app /
api-components-bundle
