263 lines
11 KiB
PHP
263 lines
11 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\Mapping\Loader;
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use Symfony\Component\Serializer\Attribute\Context;
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use Symfony\Component\Serializer\Attribute\DiscriminatorMap;
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use Symfony\Component\Serializer\Attribute\Groups;
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use Symfony\Component\Serializer\Attribute\Ignore;
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use Symfony\Component\Serializer\Attribute\MaxDepth;
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use Symfony\Component\Serializer\Attribute\SerializedName;
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use Symfony\Component\Serializer\Attribute\SerializedPath;
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use Symfony\Component\Serializer\Exception\MappingException;
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use Symfony\Component\Serializer\Mapping\AttributeMetadata;
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use Symfony\Component\Serializer\Mapping\AttributeMetadataInterface;
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use Symfony\Component\Serializer\Mapping\ClassDiscriminatorMapping;
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use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
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/**
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* Loader for PHP attributes.
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*
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* @author Kévin Dunglas <dunglas@gmail.com>
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* @author Alexander M. Turek <me@derrabus.de>
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* @author Alexandre Daubois <alex.daubois@gmail.com>
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*/
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class AttributeLoader implements LoaderInterface
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{
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use AccessorCollisionResolverTrait;
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private const KNOWN_ATTRIBUTES = [
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DiscriminatorMap::class,
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Groups::class,
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Ignore::class,
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MaxDepth::class,
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SerializedName::class,
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SerializedPath::class,
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Context::class,
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];
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/**
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* @param bool|null $allowAnyClass Null is allowed for BC with Symfony <= 6
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* @param array<class-string, class-string[]> $mappedClasses
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*/
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public function __construct(
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private ?bool $allowAnyClass = true,
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private array $mappedClasses = [],
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) {
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$this->allowAnyClass ??= true;
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}
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/**
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* @return class-string[]
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*/
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public function getMappedClasses(): array
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{
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return array_keys($this->mappedClasses);
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}
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public function loadClassMetadata(ClassMetadataInterface $classMetadata): bool
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{
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if (!$sourceClasses = $this->mappedClasses[$classMetadata->getName()] ??= $this->allowAnyClass ? [$classMetadata->getName()] : []) {
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return false;
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}
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$success = false;
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foreach ($sourceClasses as $sourceClass) {
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$reflectionClass = $classMetadata->getName() === $sourceClass ? $classMetadata->getReflectionClass() : new \ReflectionClass($sourceClass);
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$success = $this->doLoadClassMetadata($reflectionClass, $classMetadata) || $success;
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}
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return $success;
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}
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private function doLoadClassMetadata(\ReflectionClass $reflectionClass, ClassMetadataInterface $classMetadata): bool
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{
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$className = $reflectionClass->name;
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$loaded = false;
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$classGroups = [];
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$classContextAttribute = null;
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$attributesMetadata = $classMetadata->getAttributesMetadata();
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foreach ($this->loadAttributes($reflectionClass) as $attribute) {
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match (true) {
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$attribute instanceof DiscriminatorMap => $classMetadata->setClassDiscriminatorMapping(new ClassDiscriminatorMapping($attribute->typeProperty, $attribute->mapping, $attribute->defaultType)),
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$attribute instanceof Groups => $classGroups = $attribute->groups,
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$attribute instanceof Context => $classContextAttribute = $attribute,
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default => null,
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};
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}
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foreach ($reflectionClass->getProperties() as $property) {
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if (!isset($attributesMetadata[$property->name])) {
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$attributesMetadata[$property->name] = new AttributeMetadata($property->name);
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$classMetadata->addAttributeMetadata($attributesMetadata[$property->name]);
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}
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$attributeMetadata = $attributesMetadata[$property->name];
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if ($property->getDeclaringClass()->name === $className) {
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if ($classContextAttribute) {
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$this->setAttributeContextsForGroups($classContextAttribute, $attributeMetadata);
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}
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foreach ($classGroups as $group) {
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$attributeMetadata->addGroup($group);
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}
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foreach ($this->loadAttributes($property) as $attribute) {
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$loaded = true;
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if ($attribute instanceof Groups) {
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foreach ($attribute->groups as $group) {
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$attributeMetadata->addGroup($group);
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}
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continue;
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}
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match (true) {
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$attribute instanceof MaxDepth => $attributeMetadata->setMaxDepth($attribute->maxDepth),
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$attribute instanceof SerializedName => $attributeMetadata->setSerializedName($attribute->serializedName),
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$attribute instanceof SerializedPath => $attributeMetadata->setSerializedPath($attribute->serializedPath),
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$attribute instanceof Ignore => $attributeMetadata->setIgnore(true),
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$attribute instanceof Context => $this->setAttributeContextsForGroups($attribute, $attributeMetadata),
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default => null,
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};
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}
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}
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}
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foreach ($reflectionClass->getMethods() as $method) {
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if ($method->getDeclaringClass()->name !== $className) {
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continue;
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}
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$name = $method->name;
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if (0 === stripos($name, 'get') && $method->getNumberOfRequiredParameters()) {
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continue; /* matches the BC behavior in `Symfony\Component\Serializer\Normalizer\ObjectNormalizer::extractAttributes` */
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}
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$attributeName = $this->getAttributeNameFromAccessor($reflectionClass, $method, true);
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$accessorOrMutator = null !== $attributeName;
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$hasProperty = $this->hasPropertyForAccessor($method->getDeclaringClass(), $name);
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$attributeMetadata = null;
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if ($hasProperty || $accessorOrMutator) {
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if (null === $attributeName || 's' !== $name[0] && $hasProperty && $this->hasAttributeNameCollision($reflectionClass, $attributeName, $name)) {
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$attributeName = $name;
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}
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if (isset($attributesMetadata[$attributeName])) {
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$attributeMetadata = $attributesMetadata[$attributeName];
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} else {
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$attributesMetadata[$attributeName] = $attributeMetadata = new AttributeMetadata($attributeName);
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$classMetadata->addAttributeMetadata($attributeMetadata);
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}
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}
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foreach ($this->loadAttributes($method) as $attribute) {
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if ($attribute instanceof Groups) {
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if (!$attributeMetadata) {
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throw new MappingException(\sprintf('Groups on "%s::%s()" cannot be added. Groups can only be added on methods beginning with "get", "is", "has", "can" or "set".', $className, $method->name));
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}
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foreach ($attribute->groups as $group) {
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$attributeMetadata->addGroup($group);
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}
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} elseif ($attribute instanceof MaxDepth) {
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if (!$attributeMetadata) {
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throw new MappingException(\sprintf('MaxDepth on "%s::%s()" cannot be added. MaxDepth can only be added on methods beginning with "get", "is", "has", "can" or "set".', $className, $method->name));
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}
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$attributeMetadata->setMaxDepth($attribute->maxDepth);
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} elseif ($attribute instanceof SerializedName) {
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if (!$attributeMetadata) {
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throw new MappingException(\sprintf('SerializedName on "%s::%s()" cannot be added. SerializedName can only be added on methods beginning with "get", "is", "has", "can" or "set".', $className, $method->name));
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}
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$attributeMetadata->setSerializedName($attribute->serializedName);
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} elseif ($attribute instanceof SerializedPath) {
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if (!$attributeMetadata) {
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throw new MappingException(\sprintf('SerializedPath on "%s::%s()" cannot be added. SerializedPath can only be added on methods beginning with "get", "is", "has", "can" or "set".', $className, $method->name));
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}
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$attributeMetadata->setSerializedPath($attribute->serializedPath);
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} elseif ($attribute instanceof Ignore) {
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if ($attributeMetadata) {
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$attributeMetadata->setIgnore(true);
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}
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} elseif ($attribute instanceof Context) {
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if (!$attributeMetadata) {
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throw new MappingException(\sprintf('Context on "%s::%s()" cannot be added. Context can only be added on methods beginning with "get", "is", "has", "can" or "set".', $className, $method->name));
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}
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$this->setAttributeContextsForGroups($attribute, $attributeMetadata);
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}
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$loaded = true;
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}
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}
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return $loaded;
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}
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private function loadAttributes(\ReflectionMethod|\ReflectionClass|\ReflectionProperty $reflector): iterable
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{
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foreach ($reflector->getAttributes() as $attribute) {
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if ($this->isKnownAttribute($attribute->getName())) {
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try {
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yield $attribute->newInstance();
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} catch (\Error $e) {
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if (\Error::class !== $e::class) {
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throw $e;
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}
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$on = match (true) {
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$reflector instanceof \ReflectionClass => ' on class '.$reflector->name,
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$reflector instanceof \ReflectionMethod => \sprintf(' on "%s::%s()"', $reflector->getDeclaringClass()->name, $reflector->name),
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$reflector instanceof \ReflectionProperty => \sprintf(' on "%s::$%s"', $reflector->getDeclaringClass()->name, $reflector->name),
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default => '',
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};
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throw new MappingException(\sprintf('Could not instantiate attribute "%s"%s.', $attribute->getName(), $on), 0, $e);
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}
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}
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}
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}
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private function setAttributeContextsForGroups(Context $attribute, AttributeMetadataInterface $attributeMetadata): void
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{
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$context = $attribute->context;
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$groups = $attribute->groups;
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$normalizationContext = $attribute->normalizationContext;
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$denormalizationContext = $attribute->denormalizationContext;
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if ($normalizationContext || $context) {
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$attributeMetadata->setNormalizationContextForGroups($normalizationContext ?: $context, $groups);
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}
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if ($denormalizationContext || $context) {
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$attributeMetadata->setDenormalizationContextForGroups($denormalizationContext ?: $context, $groups);
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}
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}
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private function isKnownAttribute(string $attributeName): bool
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{
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foreach (self::KNOWN_ATTRIBUTES as $knownAttribute) {
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if (is_a($attributeName, $knownAttribute, true)) {
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return true;
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}
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}
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return false;
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}
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}
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