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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Serializer\Normalizer;
use Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException;
use Symfony\Component\PropertyAccess\PropertyAccess;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
use Symfony\Component\PropertyInfo\Extractor\ReflectionExtractor;
use Symfony\Component\PropertyInfo\PropertyInfoExtractorInterface;
use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
use Symfony\Component\PropertyInfo\PropertyWriteInfo;
use Symfony\Component\Serializer\Annotation\Ignore;
use Symfony\Component\Serializer\Exception\LogicException;
use Symfony\Component\Serializer\Mapping\AttributeMetadata;
use Symfony\Component\Serializer\Mapping\ClassDiscriminatorResolverInterface;
use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
/**
* Converts between objects and arrays using the PropertyAccess component.
*
* @author Kévin Dunglas <[email protected]>
*/
class ObjectNormalizer extends AbstractObjectNormalizer
{
private static $reflectionCache = [];
protected $propertyAccessor;
protected $propertyInfoExtractor;
private $writeInfoExtractor;
private $objectClassResolver;
public function __construct(?ClassMetadataFactoryInterface $classMetadataFactory = null, ?NameConverterInterface $nameConverter = null, ?PropertyAccessorInterface $propertyAccessor = null, ?PropertyTypeExtractorInterface $propertyTypeExtractor = null, ?ClassDiscriminatorResolverInterface $classDiscriminatorResolver = null, ?callable $objectClassResolver = null, array $defaultContext = [], ?PropertyInfoExtractorInterface $propertyInfoExtractor = null)
{
if (!class_exists(PropertyAccess::class)) {
throw new LogicException('The ObjectNormalizer class requires the "PropertyAccess" component. Install "symfony/property-access" to use it.');
}
parent::__construct($classMetadataFactory, $nameConverter, $propertyTypeExtractor, $classDiscriminatorResolver, $objectClassResolver, $defaultContext);
$this->propertyAccessor = $propertyAccessor ?: PropertyAccess::createPropertyAccessor();
$this->objectClassResolver = $objectClassResolver ?? function ($class) {
return \is_object($class) ? \get_class($class) : $class;
};
$this->propertyInfoExtractor = $propertyInfoExtractor ?: new ReflectionExtractor();
$this->writeInfoExtractor = new ReflectionExtractor();
}
/**
* {@inheritdoc}
*/
public function hasCacheableSupportsMethod(): bool
{
return __CLASS__ === static::class;
}
/**
* {@inheritdoc}
*/
protected function extractAttributes(object $object, ?string $format = null, array $context = [])
{
if (\stdClass::class === \get_class($object)) {
return array_keys((array) $object);
}
// If not using groups, detect manually
$attributes = [];
// methods
$class = ($this->objectClassResolver)($object);
$reflClass = new \ReflectionClass($class);
foreach ($reflClass->getMethods(\ReflectionMethod::IS_PUBLIC) as $reflMethod) {
if (
0 !== $reflMethod->getNumberOfRequiredParameters() ||
$reflMethod->isStatic() ||
$reflMethod->isConstructor() ||
$reflMethod->isDestructor()
) {
continue;
}
$name = $reflMethod->name;
$attributeName = null;
if (str_starts_with($name, 'get') || str_starts_with($name, 'has')) {
// getters and hassers
$attributeName = substr($name, 3);
if (!$reflClass->hasProperty($attributeName)) {
$attributeName = lcfirst($attributeName);
}
} elseif (str_starts_with($name, 'is')) {
// issers
$attributeName = substr($name, 2);
if (!$reflClass->hasProperty($attributeName)) {
$attributeName = lcfirst($attributeName);
}
}
if (null !== $attributeName && $this->isAllowedAttribute($object, $attributeName, $format, $context)) {
$attributes[$attributeName] = true;
}
}
// properties
foreach ($reflClass->getProperties() as $reflProperty) {
if (!$reflProperty->isPublic()) {
continue;
}
if ($reflProperty->isStatic() || !$this->isAllowedAttribute($object, $reflProperty->name, $format, $context)) {
continue;
}
$attributes[$reflProperty->name] = true;
}
return array_keys($attributes);
}
/**
* {@inheritdoc}
*/
protected function getAttributeValue(object $object, string $attribute, ?string $format = null, array $context = [])
{
$discriminatorProperty = null;
if (null !== $this->classDiscriminatorResolver && null !== $mapping = $this->classDiscriminatorResolver->getMappingForMappedObject($object)) {
$discriminatorProperty = $mapping->getTypeProperty();
}
return $attribute === $discriminatorProperty
? $this->classDiscriminatorResolver->getTypeForMappedObject($object)
: $this->propertyAccessor->getValue($object, $attribute);
}
/**
* {@inheritdoc}
*/
protected function setAttributeValue(object $object, string $attribute, $value, ?string $format = null, array $context = [])
{
try {
$this->propertyAccessor->setValue($object, $attribute, $value);
} catch (NoSuchPropertyException $exception) {
// Properties not found are ignored
}
}
/**
* {@inheritdoc}
*/
protected function getAllowedAttributes($classOrObject, array $context, bool $attributesAsString = false)
{
if (false === $allowedAttributes = parent::getAllowedAttributes($classOrObject, $context, $attributesAsString)) {
return false;
}
if (null !== $this->classDiscriminatorResolver) {
$class = \is_object($classOrObject) ? \get_class($classOrObject) : $classOrObject;
if (null !== $discriminatorMapping = $this->classDiscriminatorResolver->getMappingForMappedObject($classOrObject)) {
$allowedAttributes[] = $attributesAsString ? $discriminatorMapping->getTypeProperty() : new AttributeMetadata($discriminatorMapping->getTypeProperty());
}
if (null !== $discriminatorMapping = $this->classDiscriminatorResolver->getMappingForClass($class)) {
$attributes = [];
foreach ($discriminatorMapping->getTypesMapping() as $mappedClass) {
$attributes[] = parent::getAllowedAttributes($mappedClass, $context, $attributesAsString);
}
$allowedAttributes = array_merge($allowedAttributes, ...$attributes);
}
}
return $allowedAttributes;
}
protected function isAllowedAttribute($classOrObject, string $attribute, ?string $format = null, array $context = [])
{
if (!parent::isAllowedAttribute($classOrObject, $attribute, $format, $context)) {
return false;
}
$class = \is_object($classOrObject) ? \get_class($classOrObject) : $classOrObject;
if ($context['_read_attributes'] ?? true) {
return (\is_object($classOrObject) && $this->propertyAccessor->isReadable($classOrObject, $attribute)) || $this->propertyInfoExtractor->isReadable($class, $attribute) || $this->hasAttributeAccessorMethod($class, $attribute);
}
if (str_contains($attribute, '.')) {
return true;
}
if ($this->propertyInfoExtractor->isWritable($class, $attribute)) {
return true;
}
if (($writeInfo = $this->writeInfoExtractor->getWriteInfo($class, $attribute)) && PropertyWriteInfo::TYPE_NONE !== $writeInfo->getType()) {
return true;
}
return false;
}
private function hasAttributeAccessorMethod(string $class, string $attribute): bool
{
if (!isset(self::$reflectionCache[$class])) {
self::$reflectionCache[$class] = new \ReflectionClass($class);
}
$reflection = self::$reflectionCache[$class];
if (!$reflection->hasMethod($attribute)) {
return false;
}
$method = $reflection->getMethod($attribute);
return !$method->isStatic()
&& (\PHP_VERSION_ID < 80000 || !$method->getAttributes(Ignore::class))
&& !$method->getNumberOfRequiredParameters();
}
}