204 lines
7.6 KiB
PHP
204 lines
7.6 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Serializer\Normalizer;
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use Symfony\Component\PropertyAccess\Exception\UninitializedPropertyException;
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use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
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use Symfony\Component\Serializer\Mapping\ClassDiscriminatorResolverInterface;
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use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
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use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
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/**
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* Converts between objects and arrays by mapping properties.
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*
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* The normalization process looks for all the object's properties (public and private).
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* The result is a map from property names to property values. Property values
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* are normalized through the serializer.
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*
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* The denormalization first looks at the constructor of the given class to see
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* if any of the parameters have the same name as one of the properties. The
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* constructor is then called with all parameters or an exception is thrown if
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* any required parameters were not present as properties. Then the denormalizer
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* walks through the given map of property names to property values to see if a
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* property with the corresponding name exists. If found, the property gets the value.
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*
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* @author Matthieu Napoli <matthieu@mnapoli.fr>
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* @author Kévin Dunglas <dunglas@gmail.com>
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*/
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final class PropertyNormalizer extends AbstractObjectNormalizer
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{
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public const NORMALIZE_PUBLIC = 1;
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public const NORMALIZE_PROTECTED = 2;
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public const NORMALIZE_PRIVATE = 4;
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/**
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* Flag to control whether fields should be output based on visibility.
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*/
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public const NORMALIZE_VISIBILITY = 'normalize_visibility';
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public function __construct(?ClassMetadataFactoryInterface $classMetadataFactory = null, ?NameConverterInterface $nameConverter = null, ?PropertyTypeExtractorInterface $propertyTypeExtractor = null, ?ClassDiscriminatorResolverInterface $classDiscriminatorResolver = null, ?callable $objectClassResolver = null, array $defaultContext = [])
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{
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parent::__construct($classMetadataFactory, $nameConverter, $propertyTypeExtractor, $classDiscriminatorResolver, $objectClassResolver, $defaultContext);
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if (!isset($this->defaultContext[self::NORMALIZE_VISIBILITY])) {
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$this->defaultContext[self::NORMALIZE_VISIBILITY] = self::NORMALIZE_PUBLIC | self::NORMALIZE_PROTECTED | self::NORMALIZE_PRIVATE;
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}
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}
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public function getSupportedTypes(?string $format): array
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{
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return ['object' => true];
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}
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public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
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{
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return parent::supportsNormalization($data, $format) && $this->supports($data::class);
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}
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public function supportsDenormalization(mixed $data, string $type, ?string $format = null, array $context = []): bool
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{
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return parent::supportsDenormalization($data, $type, $format) && $this->supports($type);
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}
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/**
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* Checks if the given class has any non-static property.
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*/
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private function supports(string $class): bool
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{
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if ($this->classDiscriminatorResolver?->getMappingForClass($class)) {
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return true;
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}
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$class = new \ReflectionClass($class);
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// We look for at least one non-static property
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do {
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foreach ($class->getProperties() as $property) {
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if (!$property->isStatic()) {
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return true;
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}
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}
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} while ($class = $class->getParentClass());
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return false;
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}
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protected function isAllowedAttribute(object|string $classOrObject, string $attribute, ?string $format = null, array $context = []): bool
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{
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if (!parent::isAllowedAttribute($classOrObject, $attribute, $format, $context)) {
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return false;
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}
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try {
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$reflectionProperty = $this->getReflectionProperty($classOrObject, $attribute);
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} catch (\ReflectionException) {
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return false;
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}
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if ($reflectionProperty->isStatic()) {
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return false;
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}
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$normalizeVisibility = $context[self::NORMALIZE_VISIBILITY] ?? $this->defaultContext[self::NORMALIZE_VISIBILITY];
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if ((self::NORMALIZE_PUBLIC & $normalizeVisibility) && $reflectionProperty->isPublic()) {
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return true;
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}
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if ((self::NORMALIZE_PROTECTED & $normalizeVisibility) && $reflectionProperty->isProtected()) {
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return true;
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}
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if ((self::NORMALIZE_PRIVATE & $normalizeVisibility) && $reflectionProperty->isPrivate()) {
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return true;
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}
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return false;
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}
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protected function extractAttributes(object $object, ?string $format = null, array $context = []): array
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{
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$reflectionObject = new \ReflectionObject($object);
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$attributes = [];
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do {
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foreach ($reflectionObject->getProperties() as $property) {
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if (!$this->isAllowedAttribute($reflectionObject->getName(), $property->name, $format, $context)) {
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continue;
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}
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$attributes[] = $property->name;
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}
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} while ($reflectionObject = $reflectionObject->getParentClass());
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return array_unique($attributes);
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}
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protected function getAttributeValue(object $object, string $attribute, ?string $format = null, array $context = []): mixed
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{
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try {
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$reflectionProperty = $this->getReflectionProperty($object, $attribute);
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} catch (\ReflectionException) {
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return null;
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}
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if ($reflectionProperty->hasType()) {
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return $reflectionProperty->getValue($object);
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}
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if (!method_exists($object, '__get') && !isset($object->$attribute)) {
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$propertyValues = (array) $object;
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if (($reflectionProperty->isPublic() && !\array_key_exists($reflectionProperty->name, $propertyValues))
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|| ($reflectionProperty->isProtected() && !\array_key_exists("\0*\0{$reflectionProperty->name}", $propertyValues))
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|| ($reflectionProperty->isPrivate() && !\array_key_exists("\0{$reflectionProperty->class}\0{$reflectionProperty->name}", $propertyValues))
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) {
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throw new UninitializedPropertyException(sprintf('The property "%s::$%s" is not initialized.', $object::class, $reflectionProperty->name));
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}
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}
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return $reflectionProperty->getValue($object);
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}
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protected function setAttributeValue(object $object, string $attribute, mixed $value, ?string $format = null, array $context = []): void
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{
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try {
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$reflectionProperty = $this->getReflectionProperty($object, $attribute);
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} catch (\ReflectionException) {
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return;
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}
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if ($reflectionProperty->isStatic()) {
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return;
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}
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$reflectionProperty->setValue($object, $value);
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}
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/**
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* @throws \ReflectionException
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*/
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private function getReflectionProperty(string|object $classOrObject, string $attribute): \ReflectionProperty
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{
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$reflectionClass = new \ReflectionClass($classOrObject);
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while (true) {
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try {
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return $reflectionClass->getProperty($attribute);
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} catch (\ReflectionException $e) {
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if (!$reflectionClass = $reflectionClass->getParentClass()) {
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throw $e;
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}
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}
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}
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}
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}
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