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/src/Hal/Serializer/ItemNormalizer.php

<?php

/*
 * This file is part of the API Platform project.
 *
 * (c) Kévin Dunglas <dunglas@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace ApiPlatform\Hal\Serializer;

use ApiPlatform\Metadata\IriConverterInterface;
use ApiPlatform\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
use ApiPlatform\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
use ApiPlatform\Metadata\Resource\Factory\ResourceMetadataCollectionFactoryInterface;
use ApiPlatform\Metadata\ResourceAccessCheckerInterface;
use ApiPlatform\Metadata\ResourceClassResolverInterface;
use ApiPlatform\Metadata\UrlGeneratorInterface;
use ApiPlatform\Metadata\Util\ClassInfoTrait;
use ApiPlatform\Serializer\AbstractItemNormalizer;
use ApiPlatform\Serializer\CacheKeyTrait;
use ApiPlatform\Serializer\ContextTrait;
use ApiPlatform\Serializer\TagCollectorInterface;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
use Symfony\Component\Serializer\Exception\CircularReferenceException;
use Symfony\Component\Serializer\Exception\LogicException;
use Symfony\Component\Serializer\Exception\UnexpectedValueException;
use Symfony\Component\Serializer\Mapping\AttributeMetadataInterface;
use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;

/**
 * Converts between objects and array including HAL metadata.
 *
 * @author Kévin Dunglas <dunglas@gmail.com>
 */
final class ItemNormalizer extends AbstractItemNormalizer
{
    use CacheKeyTrait;
    use ClassInfoTrait;
    use ContextTrait;

    public const FORMAT = 'jsonhal';

    protected const HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS = 'hal_circular_reference_limit_counters';

    private array $componentsCache = [];
    private array $attributesMetadataCache = [];

    public function __construct(PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, IriConverterInterface $iriConverter, ResourceClassResolverInterface $resourceClassResolver, ?PropertyAccessorInterface $propertyAccessor = null, ?NameConverterInterface $nameConverter = null, ?ClassMetadataFactoryInterface $classMetadataFactory = null, array $defaultContext = [], ?ResourceMetadataCollectionFactoryInterface $resourceMetadataCollectionFactory = null, ?ResourceAccessCheckerInterface $resourceAccessChecker = null, ?TagCollectorInterface $tagCollector = null)
    {
        $defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER] = function ($object): ?array {
            $iri = $this->iriConverter->getIriFromResource($object);
            if (null === $iri) {
                return null;
            }

            return ['_links' => ['self' => ['href' => $iri]]];
        };

        parent::__construct($propertyNameCollectionFactory, $propertyMetadataFactory, $iriConverter, $resourceClassResolver, $propertyAccessor, $nameConverter, $classMetadataFactory, $defaultContext, $resourceMetadataCollectionFactory, $resourceAccessChecker, $tagCollector);
    }

    /**
     * {@inheritdoc}
     */
    public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
    {
        return self::FORMAT === $format && parent::supportsNormalization($data, $format, $context);
    }

    public function getSupportedTypes($format): array
    {
        return self::FORMAT === $format ? parent::getSupportedTypes($format) : [];
    }

    /**
     * {@inheritdoc}
     */
    public function normalize(mixed $object, ?string $format = null, array $context = []): array|string|int|float|bool|\ArrayObject|null
    {
        $resourceClass = $this->getObjectClass($object);
        if ($this->getOutputClass($context)) {
            return parent::normalize($object, $format, $context);
        }

        $previousResourceClass = $context['resource_class'] ?? null;
        if ($this->resourceClassResolver->isResourceClass($resourceClass) && (null === $previousResourceClass || $this->resourceClassResolver->isResourceClass($previousResourceClass))) {
            $resourceClass = $this->resourceClassResolver->getResourceClass($object, $previousResourceClass);
        }

        $context = $this->initContext($resourceClass, $context);

        $iri = $context['iri'] ??= $this->iriConverter->getIriFromResource($object, UrlGeneratorInterface::ABS_PATH, $context['operation'] ?? null, $context);
        $context['object'] = $object;
        $context['format'] = $format;
        $context['api_normalize'] = true;

        if (!isset($context['cache_key'])) {
            $context['cache_key'] = $this->getCacheKey($format, $context);
        }

        $data = parent::normalize($object, $format, $context);

        if (!\is_array($data)) {
            return $data;
        }

        $metadata = [
            '_links' => [
                'self' => [
                    'href' => $iri,
                ],
            ],
        ];
        $components = $this->getComponents($object, $format, $context);
        $metadata = $this->populateRelation($metadata, $object, $format, $context, $components, 'links');
        $metadata = $this->populateRelation($metadata, $object, $format, $context, $components, 'embedded');

        return $metadata + $data;
    }

    /**
     * {@inheritdoc}
     */
    public function supportsDenormalization(mixed $data, string $type, ?string $format = null, array $context = []): bool
    {
        // prevent the use of lower priority normalizers (e.g. serializer.normalizer.object) for this format
        return self::FORMAT === $format;
    }

    /**
     * {@inheritdoc}
     *
     * @throws LogicException
     */
    public function denormalize(mixed $data, string $type, ?string $format = null, array $context = []): never
    {
        throw new LogicException(\sprintf('%s is a read-only format.', self::FORMAT));
    }

    /**
     * {@inheritdoc}
     */
    protected function getAttributes($object, $format = null, array $context = []): array
    {
        return $this->getComponents($object, $format, $context)['states'];
    }

    /**
     * Gets HAL components of the resource: states, links and embedded.
     */
    private function getComponents(object $object, ?string $format, array $context): array
    {
        $cacheKey = $this->getObjectClass($object).'-'.$context['cache_key'];

        if (isset($this->componentsCache[$cacheKey])) {
            return $this->componentsCache[$cacheKey];
        }

        $attributes = parent::getAttributes($object, $format, $context);
        $options = $this->getFactoryOptions($context);

        $components = [
            'states' => [],
            'links' => [],
            'embedded' => [],
        ];

        foreach ($attributes as $attribute) {
            $propertyMetadata = $this->propertyMetadataFactory->create($context['resource_class'], $attribute, $options);

            $types = $propertyMetadata->getBuiltinTypes() ?? [];

            // prevent declaring $attribute as attribute if it's already declared as relationship
            $isRelationship = false;

            foreach ($types as $type) {
                $isOne = $isMany = false;

                if (null !== $type) {
                    if ($type->isCollection()) {
                        $valueType = $type->getCollectionValueTypes()[0] ?? null;
                        $isMany = null !== $valueType && ($className = $valueType->getClassName()) && $this->resourceClassResolver->isResourceClass($className);
                    } else {
                        $className = $type->getClassName();
                        $isOne = $className && $this->resourceClassResolver->isResourceClass($className);
                    }
                }

                if (!$isOne && !$isMany) {
                    // don't declare it as an attribute too quick: maybe the next type is a valid resource
                    continue;
                }

                $relation = ['name' => $attribute, 'cardinality' => $isOne ? 'one' : 'many', 'iri' => null, 'operation' => null];

                // if we specify the uriTemplate, generates its value for link definition
                // @see ApiPlatform\Serializer\AbstractItemNormalizer:getAttributeValue logic for intentional duplicate content
                if (($className ?? false) && $uriTemplate = $propertyMetadata->getUriTemplate()) {
                    $childContext = $this->createChildContext($context, $attribute, $format);
                    unset($childContext['iri'], $childContext['uri_variables'], $childContext['resource_class'], $childContext['operation'], $childContext['operation_name']);

                    $operation = $this->resourceMetadataCollectionFactory->create($className)->getOperation(
                        operationName: $uriTemplate,
                        httpOperation: true
                    );

                    $relation['iri'] = $this->iriConverter->getIriFromResource($object, UrlGeneratorInterface::ABS_PATH, $operation, $childContext);
                    $relation['operation'] = $operation;
                    $cacheKey = null;
                }

                if ($propertyMetadata->isReadableLink()) {
                    $components['embedded'][] = $relation;
                }

                $components['links'][] = $relation;
                $isRelationship = true;
            }

            // if all types are not relationships, declare it as an attribute
            if (!$isRelationship) {
                $components['states'][] = $attribute;
            }
        }

        if ($cacheKey && false !== $context['cache_key']) {
            $this->componentsCache[$cacheKey] = $components;
        }

        return $components;
    }

    /**
     * Populates _links and _embedded keys.
     */
    private function populateRelation(array $data, object $object, ?string $format, array $context, array $components, string $type): array
    {
        $class = $this->getObjectClass($object);

        if ($this->isHalCircularReference($object, $context)) {
            return $this->handleHalCircularReference($object, $format, $context);
        }

        $attributesMetadata = \array_key_exists($class, $this->attributesMetadataCache) ?
            $this->attributesMetadataCache[$class] :
            $this->attributesMetadataCache[$class] = $this->classMetadataFactory ? $this->classMetadataFactory->getMetadataFor($class)->getAttributesMetadata() : null;

        $key = '_'.$type;
        foreach ($components[$type] as $relation) {
            if (null !== $attributesMetadata && $this->isMaxDepthReached($attributesMetadata, $class, $relation['name'], $context)) {
                continue;
            }

            $relationName = $relation['name'];
            if ($this->nameConverter) {
                $relationName = $this->nameConverter->normalize($relationName, $class, $format, $context);
            }

            // if we specify the uriTemplate, then the link takes the uriTemplate defined.
            if ('links' === $type && $iri = $relation['iri']) {
                $data[$key][$relationName]['href'] = $iri;
                continue;
            }

            $childContext = $this->createChildContext($context, $relationName, $format);
            unset($childContext['iri'], $childContext['uri_variables'], $childContext['operation'], $childContext['operation_name']);

            if ($operation = $relation['operation']) {
                $childContext['operation'] = $operation;
                $childContext['operation_name'] = $operation->getName();
            }

            $attributeValue = $this->getAttributeValue($object, $relation['name'], $format, $childContext);

            if (empty($attributeValue)) {
                continue;
            }

            if ('one' === $relation['cardinality']) {
                if ('links' === $type) {
                    $data[$key][$relationName]['href'] = $this->getRelationIri($attributeValue);
                    continue;
                }

                $data[$key][$relationName] = $attributeValue;
                continue;
            }

            // many
            $data[$key][$relationName] = [];
            foreach ($attributeValue as $rel) {
                if ('links' === $type) {
                    $rel = ['href' => $this->getRelationIri($rel)];
                }

                $data[$key][$relationName][] = $rel;
            }
        }

        return $data;
    }

    /**
     * Gets the IRI of the given relation.
     *
     * @throws UnexpectedValueException
     */
    private function getRelationIri(mixed $rel): string
    {
        if (!(\is_array($rel) || \is_string($rel))) {
            throw new UnexpectedValueException('Expected relation to be an IRI or array');
        }

        return \is_string($rel) ? $rel : $rel['_links']['self']['href'];
    }

    /**
     * Is the max depth reached for the given attribute?
     *
     * @param AttributeMetadataInterface[] $attributesMetadata
     */
    private function isMaxDepthReached(array $attributesMetadata, string $class, string $attribute, array &$context): bool
    {
        if (
            !($context[self::ENABLE_MAX_DEPTH] ?? false)
            || !isset($attributesMetadata[$attribute])
            || null === $maxDepth = $attributesMetadata[$attribute]->getMaxDepth()
        ) {
            return false;
        }

        $key = \sprintf(self::DEPTH_KEY_PATTERN, $class, $attribute);
        if (!isset($context[$key])) {
            $context[$key] = 1;

            return false;
        }

        if ($context[$key] === $maxDepth) {
            return true;
        }

        ++$context[$key];

        return false;
    }

    /**
     * Detects if the configured circular reference limit is reached.
     *
     * @throws CircularReferenceException
     */
    protected function isHalCircularReference(object $object, array &$context): bool
    {
        $objectHash = spl_object_hash($object);

        $circularReferenceLimit = $context[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT];
        if (isset($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash])) {
            if ($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash] >= $circularReferenceLimit) {
                unset($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash]);

                return true;
            }

            ++$context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash];
        } else {
            $context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash] = 1;
        }

        return false;
    }

    /**
     * Handles a circular reference.
     *
     * If a circular reference handler is set, it will be called. Otherwise, a
     * {@class CircularReferenceException} will be thrown.
     *
     * @final
     *
     * @throws CircularReferenceException
     */
    protected function handleHalCircularReference(object $object, ?string $format = null, array $context = []): mixed
    {
        $circularReferenceHandler = $context[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER];
        if ($circularReferenceHandler) {
            return $circularReferenceHandler($object, $format, $context);
        }

        throw new CircularReferenceException(\sprintf('A circular reference has been detected when serializing the object of class "%s" (configured limit: %d).', get_debug_type($object), $context[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT]));
    }
}

1	<?php
2
3	/*
4	* This file is part of the API Platform project.
5	*
6	* (c) Kévin Dunglas <dunglas@gmail.com>
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	declare(strict_types=1);
13
14	namespace ApiPlatform\Hal\Serializer;
15
16	use ApiPlatform\Metadata\IriConverterInterface;
17	use ApiPlatform\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
18	use ApiPlatform\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
19	use ApiPlatform\Metadata\Resource\Factory\ResourceMetadataCollectionFactoryInterface;
20	use ApiPlatform\Metadata\ResourceAccessCheckerInterface;
21	use ApiPlatform\Metadata\ResourceClassResolverInterface;
22	use ApiPlatform\Metadata\UrlGeneratorInterface;
23	use ApiPlatform\Metadata\Util\ClassInfoTrait;
24	use ApiPlatform\Serializer\AbstractItemNormalizer;
25	use ApiPlatform\Serializer\CacheKeyTrait;
26	use ApiPlatform\Serializer\ContextTrait;
27	use ApiPlatform\Serializer\TagCollectorInterface;
28	use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
29	use Symfony\Component\Serializer\Exception\CircularReferenceException;
30	use Symfony\Component\Serializer\Exception\LogicException;
31	use Symfony\Component\Serializer\Exception\UnexpectedValueException;
32	use Symfony\Component\Serializer\Mapping\AttributeMetadataInterface;
33	use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
34	use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
35	use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;
36
37	/**
38	* Converts between objects and array including HAL metadata.
39	*
40	* @author Kévin Dunglas <dunglas@gmail.com>
41	*/
42	final class ItemNormalizer extends AbstractItemNormalizer
43	{
44	use CacheKeyTrait;
45	use ClassInfoTrait;
46	use ContextTrait;
47
48	public const FORMAT = 'jsonhal';
49
50	protected const HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS = 'hal_circular_reference_limit_counters';
51
52	private array $componentsCache = [];
53	private array $attributesMetadataCache = [];
54
55	public function __construct(PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, IriConverterInterface $iriConverter, ResourceClassResolverInterface $resourceClassResolver, ?PropertyAccessorInterface $propertyAccessor = null, ?NameConverterInterface $nameConverter = null, ?ClassMetadataFactoryInterface $classMetadataFactory = null, array $defaultContext = [], ?ResourceMetadataCollectionFactoryInterface $resourceMetadataCollectionFactory = null, ?ResourceAccessCheckerInterface $resourceAccessChecker = null, ?TagCollectorInterface $tagCollector = null)
56	{
57	$defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER] = function ($object): ?array {	1,126✔
58	$iri = $this->iriConverter->getIriFromResource($object);	×
59	if (null === $iri) {	×
60	return null;	×
61	}
62
63	return ['_links' => ['self' => ['href' => $iri]]];	×
64	};	1,126✔
65
66	parent::__construct($propertyNameCollectionFactory, $propertyMetadataFactory, $iriConverter, $resourceClassResolver, $propertyAccessor, $nameConverter, $classMetadataFactory, $defaultContext, $resourceMetadataCollectionFactory, $resourceAccessChecker, $tagCollector);	1,126✔
67	}
68
69	/**
70	* {@inheritdoc}
71	*/
72	public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
73	{
74	return self::FORMAT === $format && parent::supportsNormalization($data, $format, $context);	83✔
75	}
76
77	public function getSupportedTypes($format): array
78	{
79	return self::FORMAT === $format ? parent::getSupportedTypes($format) : [];	987✔
80	}
81
82	/**
83	* {@inheritdoc}
84	*/
85	public function normalize(mixed $object, ?string $format = null, array $context = []): array\|string\|int\|float\|bool\|\ArrayObject\|null
86	{
87	$resourceClass = $this->getObjectClass($object);	88✔
88	if ($this->getOutputClass($context)) {	88✔
89	return parent::normalize($object, $format, $context);	5✔
90	}
91
92	$previousResourceClass = $context['resource_class'] ?? null;	88✔
93	if ($this->resourceClassResolver->isResourceClass($resourceClass) && (null === $previousResourceClass \|\| $this->resourceClassResolver->isResourceClass($previousResourceClass))) {	88✔
94	$resourceClass = $this->resourceClassResolver->getResourceClass($object, $previousResourceClass);	83✔
95	}
96
97	$context = $this->initContext($resourceClass, $context);	88✔
98
99	$iri = $context['iri'] ??= $this->iriConverter->getIriFromResource($object, UrlGeneratorInterface::ABS_PATH, $context['operation'] ?? null, $context);	88✔
100	$context['object'] = $object;	88✔
101	$context['format'] = $format;	88✔
102	$context['api_normalize'] = true;	88✔
103
104	if (!isset($context['cache_key'])) {	88✔
105	$context['cache_key'] = $this->getCacheKey($format, $context);	88✔
106	}
107
108	$data = parent::normalize($object, $format, $context);	88✔
109
110	if (!\is_array($data)) {	88✔
111	return $data;	×
112	}
113
114	$metadata = [	88✔
115	'_links' => [	88✔
116	'self' => [	88✔
117	'href' => $iri,	88✔
118	],	88✔
119	],	88✔
120	];	88✔
121	$components = $this->getComponents($object, $format, $context);	88✔
122	$metadata = $this->populateRelation($metadata, $object, $format, $context, $components, 'links');	88✔
123	$metadata = $this->populateRelation($metadata, $object, $format, $context, $components, 'embedded');	85✔
124
125	return $metadata + $data;	85✔
126	}
127
128	/**
129	* {@inheritdoc}
130	*/
131	public function supportsDenormalization(mixed $data, string $type, ?string $format = null, array $context = []): bool
132	{
133	// prevent the use of lower priority normalizers (e.g. serializer.normalizer.object) for this format
134	return self::FORMAT === $format;	3✔
135	}
136
137	/**
138	* {@inheritdoc}
139	*
140	* @throws LogicException
141	*/
142	public function denormalize(mixed $data, string $type, ?string $format = null, array $context = []): never
143	{
144	throw new LogicException(\sprintf('%s is a read-only format.', self::FORMAT));	3✔
145	}
146
147	/**
148	* {@inheritdoc}
149	*/
150	protected function getAttributes($object, $format = null, array $context = []): array
151	{
152	return $this->getComponents($object, $format, $context)['states'];	88✔
153	}
154
155	/**
156	* Gets HAL components of the resource: states, links and embedded.
157	*/
158	private function getComponents(object $object, ?string $format, array $context): array
159	{
160	$cacheKey = $this->getObjectClass($object).'-'.$context['cache_key'];	88✔
161
162	if (isset($this->componentsCache[$cacheKey])) {	88✔
163	return $this->componentsCache[$cacheKey];	85✔
164	}
165
166	$attributes = parent::getAttributes($object, $format, $context);	88✔
167	$options = $this->getFactoryOptions($context);	88✔
168
169	$components = [	88✔
170	'states' => [],	88✔
171	'links' => [],	88✔
172	'embedded' => [],	88✔
173	];	88✔
174
175	foreach ($attributes as $attribute) {	88✔
176	$propertyMetadata = $this->propertyMetadataFactory->create($context['resource_class'], $attribute, $options);	85✔
177
178	$types = $propertyMetadata->getBuiltinTypes() ?? [];	85✔
179
180	// prevent declaring $attribute as attribute if it's already declared as relationship
181	$isRelationship = false;	85✔
182
183	foreach ($types as $type) {	85✔
184	$isOne = $isMany = false;	83✔
185
186	if (null !== $type) {	83✔
187	if ($type->isCollection()) {	83✔
188	$valueType = $type->getCollectionValueTypes()[0] ?? null;	23✔
189	$isMany = null !== $valueType && ($className = $valueType->getClassName()) && $this->resourceClassResolver->isResourceClass($className);	23✔
190	} else {
191	$className = $type->getClassName();	83✔
192	$isOne = $className && $this->resourceClassResolver->isResourceClass($className);	83✔
193	}
194	}
195
196	if (!$isOne && !$isMany) {	83✔
197	// don't declare it as an attribute too quick: maybe the next type is a valid resource
198	continue;	83✔
199	}
200
201	$relation = ['name' => $attribute, 'cardinality' => $isOne ? 'one' : 'many', 'iri' => null, 'operation' => null];	42✔
202
203	// if we specify the uriTemplate, generates its value for link definition
204	// @see ApiPlatform\Serializer\AbstractItemNormalizer:getAttributeValue logic for intentional duplicate content
205	if (($className ?? false) && $uriTemplate = $propertyMetadata->getUriTemplate()) {	42✔
UNCOV 206	$childContext = $this->createChildContext($context, $attribute, $format);	1✔
UNCOV 207	unset($childContext['iri'], $childContext['uri_variables'], $childContext['resource_class'], $childContext['operation'], $childContext['operation_name']);	1✔
208
UNCOV 209	$operation = $this->resourceMetadataCollectionFactory->create($className)->getOperation(	1✔
UNCOV 210	operationName: $uriTemplate,	1✔
UNCOV 211	httpOperation: true	1✔
UNCOV 212	);	1✔
213
UNCOV 214	$relation['iri'] = $this->iriConverter->getIriFromResource($object, UrlGeneratorInterface::ABS_PATH, $operation, $childContext);	1✔
UNCOV 215	$relation['operation'] = $operation;	1✔
UNCOV 216	$cacheKey = null;	1✔
217	}
218
219	if ($propertyMetadata->isReadableLink()) {	42✔
220	$components['embedded'][] = $relation;	14✔
221	}
222
223	$components['links'][] = $relation;	42✔
224	$isRelationship = true;	42✔
225	}
226
227	// if all types are not relationships, declare it as an attribute
228	if (!$isRelationship) {	85✔
229	$components['states'][] = $attribute;	85✔
230	}
231	}
232
233	if ($cacheKey && false !== $context['cache_key']) {	88✔
234	$this->componentsCache[$cacheKey] = $components;	85✔
235	}
236
237	return $components;	88✔
238	}
239
240	/**
241	* Populates _links and _embedded keys.
242	*/
243	private function populateRelation(array $data, object $object, ?string $format, array $context, array $components, string $type): array
244	{
245	$class = $this->getObjectClass($object);	88✔
246
247	if ($this->isHalCircularReference($object, $context)) {	88✔
248	return $this->handleHalCircularReference($object, $format, $context);	×
249	}
250
251	$attributesMetadata = \array_key_exists($class, $this->attributesMetadataCache) ?	88✔
252	$this->attributesMetadataCache[$class] :	85✔
253	$this->attributesMetadataCache[$class] = $this->classMetadataFactory ? $this->classMetadataFactory->getMetadataFor($class)->getAttributesMetadata() : null;	88✔
254
255	$key = '_'.$type;	88✔
256	foreach ($components[$type] as $relation) {	88✔
257	if (null !== $attributesMetadata && $this->isMaxDepthReached($attributesMetadata, $class, $relation['name'], $context)) {	42✔
258	continue;	6✔
259	}
260
261	$relationName = $relation['name'];	42✔
262	if ($this->nameConverter) {	42✔
263	$relationName = $this->nameConverter->normalize($relationName, $class, $format, $context);	39✔
264	}
265
266	// if we specify the uriTemplate, then the link takes the uriTemplate defined.
267	if ('links' === $type && $iri = $relation['iri']) {	42✔
UNCOV 268	$data[$key][$relationName]['href'] = $iri;	1✔
UNCOV 269	continue;	1✔
270	}
271
272	$childContext = $this->createChildContext($context, $relationName, $format);	42✔
273	unset($childContext['iri'], $childContext['uri_variables'], $childContext['operation'], $childContext['operation_name']);	42✔
274
275	if ($operation = $relation['operation']) {	42✔
UNCOV 276	$childContext['operation'] = $operation;	1✔
UNCOV 277	$childContext['operation_name'] = $operation->getName();	1✔
278	}
279
280	$attributeValue = $this->getAttributeValue($object, $relation['name'], $format, $childContext);	42✔
281
282	if (empty($attributeValue)) {	39✔
283	continue;	22✔
284	}
285
286	if ('one' === $relation['cardinality']) {	28✔
287	if ('links' === $type) {	25✔
288	$data[$key][$relationName]['href'] = $this->getRelationIri($attributeValue);	24✔
289	continue;	24✔
290	}
291
292	$data[$key][$relationName] = $attributeValue;	10✔
293	continue;	10✔
294	}
295
296	// many
UNCOV 297	$data[$key][$relationName] = [];	8✔
UNCOV 298	foreach ($attributeValue as $rel) {	8✔
UNCOV 299	if ('links' === $type) {	8✔
UNCOV 300	$rel = ['href' => $this->getRelationIri($rel)];	7✔
301	}
302
UNCOV 303	$data[$key][$relationName][] = $rel;	8✔
304	}
305	}
306
307	return $data;	85✔
308	}
309
310	/**
311	* Gets the IRI of the given relation.
312	*
313	* @throws UnexpectedValueException
314	*/
315	private function getRelationIri(mixed $rel): string
316	{
317	if (!(\is_array($rel) \|\| \is_string($rel))) {	27✔
318	throw new UnexpectedValueException('Expected relation to be an IRI or array');	×
319	}
320
321	return \is_string($rel) ? $rel : $rel['_links']['self']['href'];	27✔
322	}
323
324	/**
325	* Is the max depth reached for the given attribute?
326	*
327	* @param AttributeMetadataInterface[] $attributesMetadata
328	*/
329	private function isMaxDepthReached(array $attributesMetadata, string $class, string $attribute, array &$context): bool
330	{
331	if (
332	!($context[self::ENABLE_MAX_DEPTH] ?? false)	36✔
333	\|\| !isset($attributesMetadata[$attribute])	36✔
334	\|\| null === $maxDepth = $attributesMetadata[$attribute]->getMaxDepth()	36✔
335	) {
336	return false;	33✔
337	}
338
339	$key = \sprintf(self::DEPTH_KEY_PATTERN, $class, $attribute);	6✔
340	if (!isset($context[$key])) {	6✔
341	$context[$key] = 1;	6✔
342
343	return false;	6✔
344	}
345
346	if ($context[$key] === $maxDepth) {	6✔
347	return true;	6✔
348	}
349
350	++$context[$key];	×
351
352	return false;	×
353	}
354
355	/**
356	* Detects if the configured circular reference limit is reached.
357	*
358	* @throws CircularReferenceException
359	*/
360	protected function isHalCircularReference(object $object, array &$context): bool
361	{
362	$objectHash = spl_object_hash($object);	88✔
363
364	$circularReferenceLimit = $context[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT];	88✔
365	if (isset($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash])) {	88✔
366	if ($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash] >= $circularReferenceLimit) {	×
367	unset($context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash]);	×
368
369	return true;	×
370	}
371
372	++$context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash];	×
373	} else {
374	$context[self::HAL_CIRCULAR_REFERENCE_LIMIT_COUNTERS][$objectHash] = 1;	88✔
375	}
376
377	return false;	88✔
378	}
379
380	/**
381	* Handles a circular reference.
382	*
383	* If a circular reference handler is set, it will be called. Otherwise, a
384	* {@class CircularReferenceException} will be thrown.
385	*
386	* @final
387	*
388	* @throws CircularReferenceException
389	*/
390	protected function handleHalCircularReference(object $object, ?string $format = null, array $context = []): mixed
391	{
392	$circularReferenceHandler = $context[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_HANDLER];	×
393	if ($circularReferenceHandler) {	×
394	return $circularReferenceHandler($object, $format, $context);	×
395	}
396
397	throw new CircularReferenceException(\sprintf('A circular reference has been detected when serializing the object of class "%s" (configured limit: %d).', get_debug_type($object), $context[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT] ?? $this->defaultContext[AbstractNormalizer::CIRCULAR_REFERENCE_LIMIT]));	×
398	}
399	}

api-platform / core / 14246153067

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