vendor/symfony/validator/Validator/RecursiveContextualValidator.php line 112

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Validator;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Constraints\Composite;
use Symfony\Component\Validator\Constraints\Existence;
use Symfony\Component\Validator\Constraints\GroupSequence;
use Symfony\Component\Validator\Constraints\Valid;
use Symfony\Component\Validator\ConstraintValidatorFactoryInterface;
use Symfony\Component\Validator\ConstraintViolationListInterface;
use Symfony\Component\Validator\Context\ExecutionContext;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
use Symfony\Component\Validator\Exception\NoSuchMetadataException;
use Symfony\Component\Validator\Exception\RuntimeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
use Symfony\Component\Validator\Exception\UnsupportedMetadataException;
use Symfony\Component\Validator\Exception\ValidatorException;
use Symfony\Component\Validator\Mapping\CascadingStrategy;
use Symfony\Component\Validator\Mapping\ClassMetadataInterface;
use Symfony\Component\Validator\Mapping\Factory\MetadataFactoryInterface;
use Symfony\Component\Validator\Mapping\GenericMetadata;
use Symfony\Component\Validator\Mapping\GetterMetadata;
use Symfony\Component\Validator\Mapping\MetadataInterface;
use Symfony\Component\Validator\Mapping\PropertyMetadataInterface;
use Symfony\Component\Validator\Mapping\TraversalStrategy;
use Symfony\Component\Validator\ObjectInitializerInterface;
use Symfony\Component\Validator\Util\PropertyPath;
/**
* Recursive implementation of {@link ContextualValidatorInterface}.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class RecursiveContextualValidator implements ContextualValidatorInterface
{
private ExecutionContextInterface $context;
private string $defaultPropertyPath;
private array $defaultGroups;
private MetadataFactoryInterface $metadataFactory;
private ConstraintValidatorFactoryInterface $validatorFactory;
private array $objectInitializers;
/**
* Creates a validator for the given context.
*
* @param ObjectInitializerInterface[] $objectInitializers The object initializers
*/
public function __construct(ExecutionContextInterface $context, MetadataFactoryInterface $metadataFactory, ConstraintValidatorFactoryInterface $validatorFactory, array $objectInitializers = [])
{
$this->context = $context;
$this->defaultPropertyPath = $context->getPropertyPath();
$this->defaultGroups = [$context->getGroup() ?: Constraint::DEFAULT_GROUP];
$this->metadataFactory = $metadataFactory;
$this->validatorFactory = $validatorFactory;
$this->objectInitializers = $objectInitializers;
}
public function atPath(string $path): static
{
$this->defaultPropertyPath = $this->context->getPropertyPath($path);
return $this;
}
public function validate(mixed $value, Constraint|array $constraints = null, string|GroupSequence|array $groups = null): static
{
$groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
$previousValue = $this->context->getValue();
$previousObject = $this->context->getObject();
$previousMetadata = $this->context->getMetadata();
$previousPath = $this->context->getPropertyPath();
$previousGroup = $this->context->getGroup();
$previousConstraint = null;
if ($this->context instanceof ExecutionContext || method_exists($this->context, 'getConstraint')) {
$previousConstraint = $this->context->getConstraint();
}
// If explicit constraints are passed, validate the value against
// those constraints
if (null !== $constraints) {
// You can pass a single constraint or an array of constraints
// Make sure to deal with an array in the rest of the code
if (!\is_array($constraints)) {
$constraints = [$constraints];
}
$metadata = new GenericMetadata();
$metadata->addConstraints($constraints);
$this->validateGenericNode(
$value,
$previousObject,
\is_object($value) ? $this->generateCacheKey($value) : null,
$metadata,
$this->defaultPropertyPath,
$groups,
null,
TraversalStrategy::IMPLICIT,
$this->context
);
$this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
$this->context->setGroup($previousGroup);
if (null !== $previousConstraint) {
$this->context->setConstraint($previousConstraint);
}
return $this;
}
// If an object is passed without explicit constraints, validate that
// object against the constraints defined for the object's class
if (\is_object($value)) {
$this->validateObject(
$value,
$this->defaultPropertyPath,
$groups,
TraversalStrategy::IMPLICIT,
$this->context
);
$this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
$this->context->setGroup($previousGroup);
return $this;
}
// If an array is passed without explicit constraints, validate each
// object in the array
if (\is_array($value)) {
$this->validateEachObjectIn(
$value,
$this->defaultPropertyPath,
$groups,
$this->context
);
$this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
$this->context->setGroup($previousGroup);
return $this;
}
throw new RuntimeException(sprintf('Cannot validate values of type "%s" automatically. Please provide a constraint.', get_debug_type($value)));
}
public function validateProperty(object $object, string $propertyName, string|GroupSequence|array $groups = null): static
{
$classMetadata = $this->metadataFactory->getMetadataFor($object);
if (!$classMetadata instanceof ClassMetadataInterface) {
throw new ValidatorException(sprintf('The metadata factory should return instances of "\Symfony\Component\Validator\Mapping\ClassMetadataInterface", got: "%s".', get_debug_type($classMetadata)));
}
$propertyMetadatas = $classMetadata->getPropertyMetadata($propertyName);
$groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
$cacheKey = $this->generateCacheKey($object);
$propertyPath = PropertyPath::append($this->defaultPropertyPath, $propertyName);
$previousValue = $this->context->getValue();
$previousObject = $this->context->getObject();
$previousMetadata = $this->context->getMetadata();
$previousPath = $this->context->getPropertyPath();
$previousGroup = $this->context->getGroup();
foreach ($propertyMetadatas as $propertyMetadata) {
$propertyValue = $propertyMetadata->getPropertyValue($object);
$this->validateGenericNode(
$propertyValue,
$object,
$cacheKey.':'.$object::class.':'.$propertyName,
$propertyMetadata,
$propertyPath,
$groups,
null,
TraversalStrategy::IMPLICIT,
$this->context
);
}
$this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
$this->context->setGroup($previousGroup);
return $this;
}
public function validatePropertyValue(object|string $objectOrClass, string $propertyName, mixed $value, string|GroupSequence|array $groups = null): static
{
$classMetadata = $this->metadataFactory->getMetadataFor($objectOrClass);
if (!$classMetadata instanceof ClassMetadataInterface) {
throw new ValidatorException(sprintf('The metadata factory should return instances of "\Symfony\Component\Validator\Mapping\ClassMetadataInterface", got: "%s".', get_debug_type($classMetadata)));
}
$propertyMetadatas = $classMetadata->getPropertyMetadata($propertyName);
$groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
if (\is_object($objectOrClass)) {
$object = $objectOrClass;
$class = $object::class;
$cacheKey = $this->generateCacheKey($objectOrClass);
$propertyPath = PropertyPath::append($this->defaultPropertyPath, $propertyName);
} else {
// $objectOrClass contains a class name
$object = null;
$class = $objectOrClass;
$cacheKey = null;
$propertyPath = $this->defaultPropertyPath;
}
$previousValue = $this->context->getValue();
$previousObject = $this->context->getObject();
$previousMetadata = $this->context->getMetadata();
$previousPath = $this->context->getPropertyPath();
$previousGroup = $this->context->getGroup();
foreach ($propertyMetadatas as $propertyMetadata) {
$this->validateGenericNode(
$value,
$object,
$cacheKey.':'.$class.':'.$propertyName,
$propertyMetadata,
$propertyPath,
$groups,
null,
TraversalStrategy::IMPLICIT,
$this->context
);
}
$this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
$this->context->setGroup($previousGroup);
return $this;
}
public function getViolations(): ConstraintViolationListInterface
{
return $this->context->getViolations();
}
/**
* Normalizes the given group or list of groups to an array.
*
* @param string|GroupSequence|array<string|GroupSequence> $groups The groups to normalize
*
* @return array<string|GroupSequence>
*/
protected function normalizeGroups(string|GroupSequence|array $groups): array
{
if (\is_array($groups)) {
return $groups;
}
return [$groups];
}
/**
* Validates an object against the constraints defined for its class.
*
* If no metadata is available for the class, but the class is an instance
* of {@link \Traversable} and the selected traversal strategy allows
* traversal, the object will be iterated and each nested object will be
* validated instead.
*
* @throws NoSuchMetadataException If the object has no associated metadata
* and does not implement {@link \Traversable}
* or if traversal is disabled via the
* $traversalStrategy argument
* @throws UnsupportedMetadataException If the metadata returned by the
* metadata factory does not implement
* {@link ClassMetadataInterface}
*/
private function validateObject(object $object, string $propertyPath, array $groups, int $traversalStrategy, ExecutionContextInterface $context)
{
try {
$classMetadata = $this->metadataFactory->getMetadataFor($object);
if (!$classMetadata instanceof ClassMetadataInterface) {
throw new UnsupportedMetadataException(sprintf('The metadata factory should return instances of "Symfony\Component\Validator\Mapping\ClassMetadataInterface", got: "%s".', get_debug_type($classMetadata)));
}
$this->validateClassNode(
$object,
$this->generateCacheKey($object),
$classMetadata,
$propertyPath,
$groups,
null,
$traversalStrategy,
$context
);
} catch (NoSuchMetadataException $e) {
// Rethrow if not Traversable
if (!$object instanceof \Traversable) {
throw $e;
}
// Rethrow unless IMPLICIT or TRAVERSE
if (!($traversalStrategy & (TraversalStrategy::IMPLICIT | TraversalStrategy::TRAVERSE))) {
throw $e;
}
$this->validateEachObjectIn(
$object,
$propertyPath,
$groups,
$context
);
}
}
/**
* Validates each object in a collection against the constraints defined
* for their classes.
*
* Nested arrays are also iterated.
*/
private function validateEachObjectIn(iterable $collection, string $propertyPath, array $groups, ExecutionContextInterface $context)
{
foreach ($collection as $key => $value) {
if (\is_array($value)) {
// Also traverse nested arrays
$this->validateEachObjectIn(
$value,
$propertyPath.'['.$key.']',
$groups,
$context
);
continue;
}
// Scalar and null values in the collection are ignored
if (\is_object($value)) {
$this->validateObject(
$value,
$propertyPath.'['.$key.']',
$groups,
TraversalStrategy::IMPLICIT,
$context
);
}
}
}
/**
* Validates a class node.
*
* A class node is a combination of an object with a {@link ClassMetadataInterface}
* instance. Each class node (conceptually) has zero or more succeeding
* property nodes:
*
* (Article:class node)
* \
* ($title:property node)
*
* This method validates the passed objects against all constraints defined
* at class level. It furthermore triggers the validation of each of the
* class' properties against the constraints for that property.
*
* If the selected traversal strategy allows traversal, the object is
* iterated and each nested object is validated against its own constraints.
* The object is not traversed if traversal is disabled in the class
* metadata.
*
* If the passed groups contain the group "Default", the validator will
* check whether the "Default" group has been replaced by a group sequence
* in the class metadata. If this is the case, the group sequence is
* validated instead.
*
* @throws UnsupportedMetadataException If a property metadata does not
* implement {@link PropertyMetadataInterface}
* @throws ConstraintDefinitionException If traversal was enabled but the
* object does not implement
* {@link \Traversable}
*
* @see TraversalStrategy
*/
private function validateClassNode(object $object, ?string $cacheKey, ClassMetadataInterface $metadata, string $propertyPath, array $groups, ?array $cascadedGroups, int $traversalStrategy, ExecutionContextInterface $context)
{
$context->setNode($object, $object, $metadata, $propertyPath);
if (!$context->isObjectInitialized($cacheKey)) {
foreach ($this->objectInitializers as $initializer) {
$initializer->initialize($object);
}
$context->markObjectAsInitialized($cacheKey);
}
foreach ($groups as $key => $group) {
// If the "Default" group is replaced by a group sequence, remember
// to cascade the "Default" group when traversing the group
// sequence
$defaultOverridden = false;
// Use the object hash for group sequences
$groupHash = \is_object($group) ? $this->generateCacheKey($group, true) : $group;
if ($context->isGroupValidated($cacheKey, $groupHash)) {
// Skip this group when validating the properties and when
// traversing the object
unset($groups[$key]);
continue;
}
$context->markGroupAsValidated($cacheKey, $groupHash);
// Replace the "Default" group by the group sequence defined
// for the class, if applicable.
// This is done after checking the cache, so that
// spl_object_hash() isn't called for this sequence and
// "Default" is used instead in the cache. This is useful
// if the getters below return different group sequences in
// every call.
if (Constraint::DEFAULT_GROUP === $group) {
if ($metadata->hasGroupSequence()) {
// The group sequence is statically defined for the class
$group = $metadata->getGroupSequence();
$defaultOverridden = true;
} elseif ($metadata->isGroupSequenceProvider()) {
// The group sequence is dynamically obtained from the validated
// object
/* @var \Symfony\Component\Validator\GroupSequenceProviderInterface $object */
$group = $object->getGroupSequence();
$defaultOverridden = true;
if (!$group instanceof GroupSequence) {
$group = new GroupSequence($group);
}
}
}
// If the groups (=[<G1,G2>,G3,G4]) contain a group sequence
// (=<G1,G2>), then call validateClassNode() with each entry of the
// group sequence and abort if necessary (G1, G2)
if ($group instanceof GroupSequence) {
$this->stepThroughGroupSequence(
$object,
$object,
$cacheKey,
$metadata,
$propertyPath,
$traversalStrategy,
$group,
$defaultOverridden ? Constraint::DEFAULT_GROUP : null,
$context
);
// Skip the group sequence when validating properties, because
// stepThroughGroupSequence() already validates the properties
unset($groups[$key]);
continue;
}
$this->validateInGroup($object, $cacheKey, $metadata, $group, $context);
}
// If no more groups should be validated for the property nodes,
// we can safely quit
if (0 === \count($groups)) {
return;
}
// Validate all properties against their constraints
foreach ($metadata->getConstrainedProperties() as $propertyName) {
// If constraints are defined both on the getter of a property as
// well as on the property itself, then getPropertyMetadata()
// returns two metadata objects, not just one
foreach ($metadata->getPropertyMetadata($propertyName) as $propertyMetadata) {
if (!$propertyMetadata instanceof PropertyMetadataInterface) {
throw new UnsupportedMetadataException(sprintf('The property metadata instances should implement "Symfony\Component\Validator\Mapping\PropertyMetadataInterface", got: "%s".', get_debug_type($propertyMetadata)));
}
if ($propertyMetadata instanceof GetterMetadata) {
$propertyValue = new LazyProperty(static function () use ($propertyMetadata, $object) {
return $propertyMetadata->getPropertyValue($object);
});
} else {
$propertyValue = $propertyMetadata->getPropertyValue($object);
}
$this->validateGenericNode(
$propertyValue,
$object,
$cacheKey.':'.$object::class.':'.$propertyName,
$propertyMetadata,
PropertyPath::append($propertyPath, $propertyName),
$groups,
$cascadedGroups,
TraversalStrategy::IMPLICIT,
$context
);
}
}
// If no specific traversal strategy was requested when this method
// was called, use the traversal strategy of the class' metadata
if ($traversalStrategy & TraversalStrategy::IMPLICIT) {
$traversalStrategy = $metadata->getTraversalStrategy();
}
// Traverse only if IMPLICIT or TRAVERSE
if (!($traversalStrategy & (TraversalStrategy::IMPLICIT | TraversalStrategy::TRAVERSE))) {
return;
}
// If IMPLICIT, stop unless we deal with a Traversable
if ($traversalStrategy & TraversalStrategy::IMPLICIT && !$object instanceof \Traversable) {
return;
}
// If TRAVERSE, fail if we have no Traversable
if (!$object instanceof \Traversable) {
throw new ConstraintDefinitionException(sprintf('Traversal was enabled for "%s", but this class does not implement "\Traversable".', get_debug_type($object)));
}
$this->validateEachObjectIn(
$object,
$propertyPath,
$groups,
$context
);
}
/**
* Validates a node that is not a class node.
*
* Currently, two such node types exist:
*
* - property nodes, which consist of the value of an object's
* property together with a {@link PropertyMetadataInterface} instance
* - generic nodes, which consist of a value and some arbitrary
* constraints defined in a {@link MetadataInterface} container
*
* In both cases, the value is validated against all constraints defined
* in the passed metadata object. Then, if the value is an instance of
* {@link \Traversable} and the selected traversal strategy permits it,
* the value is traversed and each nested object validated against its own
* constraints. If the value is an array, it is traversed regardless of
* the given strategy.
*
* @see TraversalStrategy
*/
private function validateGenericNode(mixed $value, ?object $object, ?string $cacheKey, ?MetadataInterface $metadata, string $propertyPath, array $groups, ?array $cascadedGroups, int $traversalStrategy, ExecutionContextInterface $context)
{
$context->setNode($value, $object, $metadata, $propertyPath);
foreach ($groups as $key => $group) {
if ($group instanceof GroupSequence) {
$this->stepThroughGroupSequence(
$value,
$object,
$cacheKey,
$metadata,
$propertyPath,
$traversalStrategy,
$group,
null,
$context
);
// Skip the group sequence when cascading, as the cascading
// logic is already done in stepThroughGroupSequence()
unset($groups[$key]);
continue;
}
$this->validateInGroup($value, $cacheKey, $metadata, $group, $context);
}
if (0 === \count($groups)) {
return;
}
if (null === $value) {
return;
}
$cascadingStrategy = $metadata->getCascadingStrategy();
// Quit unless we cascade
if (!($cascadingStrategy & CascadingStrategy::CASCADE)) {
return;
}
// If no specific traversal strategy was requested when this method
// was called, use the traversal strategy of the node's metadata
if ($traversalStrategy & TraversalStrategy::IMPLICIT) {
$traversalStrategy = $metadata->getTraversalStrategy();
}
// The $cascadedGroups property is set, if the "Default" group is
// overridden by a group sequence
// See validateClassNode()
$cascadedGroups = null !== $cascadedGroups && \count($cascadedGroups) > 0 ? $cascadedGroups : $groups;
if ($value instanceof LazyProperty) {
$value = $value->getPropertyValue();
if (null === $value) {
return;
}
}
if (\is_array($value)) {
// Arrays are always traversed, independent of the specified
// traversal strategy
$this->validateEachObjectIn(
$value,
$propertyPath,
$cascadedGroups,
$context
);
return;
}
if (!\is_object($value)) {
throw new NoSuchMetadataException(sprintf('Cannot create metadata for non-objects. Got: "%s".', \gettype($value)));
}
$this->validateObject(
$value,
$propertyPath,
$cascadedGroups,
$traversalStrategy,
$context
);
// Currently, the traversal strategy can only be TRAVERSE for a
// generic node if the cascading strategy is CASCADE. Thus, traversable
// objects will always be handled within validateObject() and there's
// nothing more to do here.
// see GenericMetadata::addConstraint()
}
/**
* Sequentially validates a node's value in each group of a group sequence.
*
* If any of the constraints generates a violation, subsequent groups in the
* group sequence are skipped.
*/
private function stepThroughGroupSequence(mixed $value, ?object $object, ?string $cacheKey, ?MetadataInterface $metadata, string $propertyPath, int $traversalStrategy, GroupSequence $groupSequence, ?string $cascadedGroup, ExecutionContextInterface $context)
{
$violationCount = \count($context->getViolations());
$cascadedGroups = $cascadedGroup ? [$cascadedGroup] : null;
foreach ($groupSequence->groups as $groupInSequence) {
$groups = (array) $groupInSequence;
if ($metadata instanceof ClassMetadataInterface) {
$this->validateClassNode(
$value,
$cacheKey,
$metadata,
$propertyPath,
$groups,
$cascadedGroups,
$traversalStrategy,
$context
);
} else {
$this->validateGenericNode(
$value,
$object,
$cacheKey,
$metadata,
$propertyPath,
$groups,
$cascadedGroups,
$traversalStrategy,
$context
);
}
// Abort sequence validation if a violation was generated
if (\count($context->getViolations()) > $violationCount) {
break;
}
}
}
/**
* Validates a node's value against all constraints in the given group.
*/
private function validateInGroup(mixed $value, ?string $cacheKey, MetadataInterface $metadata, string $group, ExecutionContextInterface $context)
{
$context->setGroup($group);
foreach ($metadata->findConstraints($group) as $constraint) {
if ($constraint instanceof Existence) {
continue;
}
// Prevent duplicate validation of constraints, in the case
// that constraints belong to multiple validated groups
if (null !== $cacheKey) {
$constraintHash = $this->generateCacheKey($constraint, true);
// instanceof Valid: In case of using a Valid constraint with many groups
// it makes a reference object get validated by each group
if ($constraint instanceof Composite || $constraint instanceof Valid) {
$constraintHash .= $group;
}
if ($context->isConstraintValidated($cacheKey, $constraintHash)) {
continue;
}
$context->markConstraintAsValidated($cacheKey, $constraintHash);
}
$context->setConstraint($constraint);
$validator = $this->validatorFactory->getInstance($constraint);
$validator->initialize($context);
if ($value instanceof LazyProperty) {
$value = $value->getPropertyValue();
}
try {
$validator->validate($value, $constraint);
} catch (UnexpectedValueException $e) {
$context->buildViolation('This value should be of type {{ type }}.')
->setParameter('{{ type }}', $e->getExpectedType())
->addViolation();
}
}
}
private function generateCacheKey(object $object, bool $dependsOnPropertyPath = false): string
{
if ($this->context instanceof ExecutionContext) {
$cacheKey = $this->context->generateCacheKey($object);
} else {
$cacheKey = spl_object_hash($object);
}
if ($dependsOnPropertyPath) {
$cacheKey .= $this->context->getPropertyPath();
}
return $cacheKey;
}
}

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Last modified:: May 25, 2023 04:08
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