InputValidator::validate() - Code Metrics - Inspection of "Feature/generator" - overblog/GraphQLBundle - Measure and Improve Code Quality continuously with Scrutinizer

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Pull Request — master (#682)

unknown

created 2020-06-26 13:51 UTC

InputValidator::validate() A

↳ Parent: InputValidator

Complexity

Conditions	3
Paths	2

Size

Total Lines	19
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	12
dl	0
loc	19
ccs	5
cts	5
cp	1
rs	9.8666
c	1
b	0
f	0
cc	3
nc	2
nop	2
crap	3

<?php

declare(strict_types=1);

namespace Overblog\GraphQLBundle\Validator;

use GraphQL\Type\Definition\InputObjectType;
use GraphQL\Type\Definition\ObjectType;
use GraphQL\Type\Definition\ResolveInfo;
use Overblog\GraphQLBundle\Definition\ArgumentInterface;
use Overblog\GraphQLBundle\Validator\Exception\ArgumentsValidationException;
use Overblog\GraphQLBundle\Validator\Mapping\MetadataFactory;
use Overblog\GraphQLBundle\Validator\Mapping\ObjectMetadata;
use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Constraints\GroupSequence;
use Symfony\Component\Validator\Constraints\Valid;
use Symfony\Component\Validator\ConstraintViolationListInterface;
use Symfony\Component\Validator\Mapping\ClassMetadataInterface;
use Symfony\Component\Validator\Mapping\GetterMetadata;
use Symfony\Component\Validator\Mapping\PropertyMetadata;
use Symfony\Component\Validator\Validator\ValidatorInterface;

class InputValidator
{
    private const TYPE_PROPERTY = 'property';
    private const TYPE_GETTER = 'getter';

    private array $resolverArgs;
    private array $propertiesMapping;
    private array $classMapping;
    private ValidatorInterface $validator;
    private MetadataFactory $metadataFactory;
    private ResolveInfo $info;
    private ValidatorFactory $validatorFactory;

    /** @var ClassMetadataInterface[] */
    private array $cachedMetadata = [];

    /**
     * InputValidator constructor.
     */
    public function __construct(
        array $resolverArgs,
        ?ValidatorInterface $validator,
        ValidatorFactory $factory,
        array $propertiesMapping = [],
        array $classMapping = []
    ) {
        if (null === $validator) {
            throw new ServiceNotFoundException(
                "The 'validator' service is not found. To use the 'InputValidator' you need to install the
                Symfony Validator Component first. See: 'https://symfony.com/doc/current/validation.html'"
            );
        }

        $this->resolverArgs = $this->mapResolverArgs(...$resolverArgs);
        $this->info = $this->resolverArgs['info'];
        $this->propertiesMapping = $propertiesMapping;
        $this->classMapping = $classMapping;
        $this->validator = $validator;
        $this->validatorFactory = $factory;
        $this->metadataFactory = new MetadataFactory();
    }

    /**
     * Converts a numeric array of resolver args to an associative one.
     *
     * @param mixed             $value
     * @param ArgumentInterface $args
     * @param mixed             $context
     * @param ResolveInfo       $info
     *
     * @return array
     */
    private function mapResolverArgs($value, ArgumentInterface $args, $context, ResolveInfo $info): array
    {
        return [
            'value' => $value,
            'args' => $args,
            'context' => $context,
            'info' => $info,
        ];
    }

    /**
     * @param string|array|null $groups
     * @param bool              $throw
     *
     * @return ConstraintViolationListInterface|null
     *
     * @throws ArgumentsValidationException
     */
    public function validate($groups = null, bool $throw = true): ?ConstraintViolationListInterface
    {
        $rootObject = new ValidationNode($this->info->parentType, $this->info->fieldName, null, $this->resolverArgs);

        $this->buildValidationTree(
            $rootObject,
            $this->propertiesMapping,
            $this->classMapping,
            $this->resolverArgs['args']->getArrayCopy()
        );

        $validator = $this->validatorFactory->createValidator($this->metadataFactory);

        $errors = $validator->validate($rootObject, null, $groups);

        if ($throw && $errors->count() > 0) {
            throw new ArgumentsValidationException($errors);
        } else {
            return $errors;
        }
    }

    /**
     * Creates a composition of ValidationNode objects from args
     * and simultaneously applies to them validation constraints.
     */
    protected function buildValidationTree(ValidationNode $rootObject, array $propertiesMapping, array $classMapping, array $args): ValidationNode
    {
        $metadata = new ObjectMetadata($rootObject);

        if (!empty($classMapping)) {
            $this->applyClassConstraints($metadata, $classMapping);
        }

        foreach ($propertiesMapping as $property => $params) {
            if (!empty($params['cascade']) && isset($args[$property])) {
                $options = $params['cascade'];
                $type = $options['referenceType'];

                if ($options['isCollection']) {
                    $rootObject->$property = $this->createCollectionNode($args[$property], $type, $rootObject);
                } else {
                    $rootObject->$property = $this->createObjectNode($args[$property], $type, $rootObject);
                }

                $valid = new Valid();

                if (!empty($options['groups'])) {
                    $valid->groups = $options['groups'];
                }

                $metadata->addPropertyConstraint($property, $valid);
            } else {
                $rootObject->$property = $args[$property] ?? null;
            }

            $this->restructureShortForm($params);

            foreach ($params ?? [] as $key => $value) {
                if (null === $value) {
                    continue;
                }

                switch ($key) {
                    case 'link':
                        [$fqcn, $property, $type] = $value;

                        if (!\in_array($fqcn, $this->cachedMetadata)) {
                            $this->cachedMetadata[$fqcn] = $this->validator->getMetadataFor($fqcn);
                        }

                        // Get metadata from the property and it's getters
                        $propertyMetadata = $this->cachedMetadata[$fqcn]->getPropertyMetadata($property);

                        foreach ($propertyMetadata as $memberMetadata) {
                            // Allow only constraints specified by the "link" matcher
                            if (self::TYPE_GETTER === $type) {
                                if (!$memberMetadata instanceof GetterMetadata) {
                                    continue;
                                }
                            } elseif (self::TYPE_PROPERTY === $type) {
                                if (!$memberMetadata instanceof PropertyMetadata) {
                                    continue;
                                }
                            }

                            $metadata->addPropertyConstraints($property, $memberMetadata->getConstraints());
                        }

                        break;
                    case 'constraints':
                        $metadata->addPropertyConstraints($property, $value);
                        break;
                    case 'cascade':
                        break;
                }
            }
        }

        $this->metadataFactory->addMetadata($metadata);

        return $rootObject;
    }

    /**
     * @param ObjectType|InputObjectType $type
     */
    private function createCollectionNode(array $values, $type, ValidationNode $parent): array
    {
        $collection = [];

        foreach ($values as $value) {
            $collection[] = $this->createObjectNode($value, $type, $parent);
        }

        return $collection;
    }

    /**
     * @param ObjectType|InputObjectType $type
     */
    private function createObjectNode(array $value, $type, ValidationNode $parent): ValidationNode
    {
        $classMapping = $type->config['validation'] ?? [];
        $propertiesMapping = [];

        foreach ($type->getFields() as $fieldName => $inputField) {
            $propertiesMapping[$fieldName] = $inputField->config['validation'];
        }

        return $this->buildValidationTree(
            new ValidationNode($type, null, $parent, $this->resolverArgs),
            $propertiesMapping,
            $classMapping,
            $value
        );
    }

    private function applyClassConstraints(ObjectMetadata $metadata, array $rules): void
    {
        $this->restructureShortForm($rules);

        foreach ($rules as $key => $value) {
            if (null === $value) {
                continue;
            }

            switch ($key) {
                case 'link':
                    $linkedMetadata = $this->validator->getMetadataFor($value);
                    $metadata->addConstraints($linkedMetadata->getConstraints());
                    break;
                case 'constraints':
                    foreach ($value as $constraint) {
                        if ($constraint instanceof Constraint) {
                            $metadata->addConstraint($constraint);
                        } elseif ($constraint instanceof GroupSequence) {
                            $metadata->setGroupSequence($constraint);
                        }
                    }
                    break;
            }
        }
    }

    /**
     * @param array $rules
     */
    private function restructureShortForm(array &$rules): void
    {
        if (isset($rules[0])) {
            $rules = ['constraints' => $rules];
        }
    }

    /**
     * @param string|array|null $groups
     *
     * @throws ArgumentsValidationException
     */
    public function __invoke($groups = null, bool $throw = true): ?ConstraintViolationListInterface
    {
        return $this->validate($groups, $throw);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Overblog\GraphQLBundle\Validator;
6
7		use GraphQL\Type\Definition\InputObjectType;
8		use GraphQL\Type\Definition\ObjectType;
9		use GraphQL\Type\Definition\ResolveInfo;
10		use Overblog\GraphQLBundle\Definition\ArgumentInterface;
11		use Overblog\GraphQLBundle\Validator\Exception\ArgumentsValidationException;
12		use Overblog\GraphQLBundle\Validator\Mapping\MetadataFactory;
13		use Overblog\GraphQLBundle\Validator\Mapping\ObjectMetadata;
14		use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
15		use Symfony\Component\Validator\Constraint;
16		use Symfony\Component\Validator\Constraints\GroupSequence;
17		use Symfony\Component\Validator\Constraints\Valid;
18		use Symfony\Component\Validator\ConstraintViolationListInterface;
19		use Symfony\Component\Validator\Mapping\ClassMetadataInterface;
20		use Symfony\Component\Validator\Mapping\GetterMetadata;
21		use Symfony\Component\Validator\Mapping\PropertyMetadata;
22		use Symfony\Component\Validator\Validator\ValidatorInterface;
23
24		class InputValidator
25		{
26		private const TYPE_PROPERTY = 'property';
27		private const TYPE_GETTER = 'getter';
28
29		private array $resolverArgs;
30		private array $propertiesMapping;
31		private array $classMapping;
32		private ValidatorInterface $validator;
33		private MetadataFactory $metadataFactory;
34		private ResolveInfo $info;
35		private ValidatorFactory $validatorFactory;
36
37		/** @var ClassMetadataInterface[] */
38		private array $cachedMetadata = [];
39
40		/**
41		* InputValidator constructor.
42		*/
43		public function __construct(
44		array $resolverArgs,
45		?ValidatorInterface $validator,
46		ValidatorFactory $factory,
47		array $propertiesMapping = [],
48		array $classMapping = []
49		) {
50		if (null === $validator) {
51		throw new ServiceNotFoundException(
52		"The 'validator' service is not found. To use the 'InputValidator' you need to install the
53		Symfony Validator Component first. See: 'https://symfony.com/doc/current/validation.html'"
54		);
55		}
56
57		$this->resolverArgs = $this->mapResolverArgs(...$resolverArgs);
58		$this->info = $this->resolverArgs['info'];
59		$this->propertiesMapping = $propertiesMapping;
60		$this->classMapping = $classMapping;
61		$this->validator = $validator;
62		$this->validatorFactory = $factory;
63		$this->metadataFactory = new MetadataFactory();
64		}
65
66		/**
67		* Converts a numeric array of resolver args to an associative one.
68		*
69		* @param mixed $value
70		* @param ArgumentInterface $args
71		* @param mixed $context
72	18	* @param ResolveInfo $info
73		*
74	18	* @return array
75	1	*/
76	1	private function mapResolverArgs($value, ArgumentInterface $args, $context, ResolveInfo $info): array
77		{
78		return [
79		'value' => $value,
80		'args' => $args,
81	17	'context' => $context,
82	17	'info' => $info,
83	17	];
84	17	}
85	17
86	17	/**
87	17	* @param string\|array\|null $groups
88		* @param bool $throw
89		*
90		* @return ConstraintViolationListInterface\|null
91		*
92		* @throws ArgumentsValidationException
93		*/
94		public function validate($groups = null, bool $throw = true): ?ConstraintViolationListInterface
95		{
96	17	$rootObject = new ValidationNode($this->info->parentType, $this->info->fieldName, null, $this->resolverArgs);
97
98		$this->buildValidationTree(
99	17	$rootObject,
100	17	$this->propertiesMapping,
101	17	$this->classMapping,
102	17	$this->resolverArgs['args']->getArrayCopy()
103		);
104
105		$validator = $this->validatorFactory->createValidator($this->metadataFactory);
106
107		$errors = $validator->validate($rootObject, null, $groups);
108
109		if ($throw && $errors->count() > 0) {
110		throw new ArgumentsValidationException($errors);
111		} else {
112		return $errors;
113		}
114	17	}
115
116	17	/**
117		* Creates a composition of ValidationNode objects from args
118	17	* and simultaneously applies to them validation constraints.
119		*/
120	17	protected function buildValidationTree(ValidationNode $rootObject, array $propertiesMapping, array $classMapping, array $args): ValidationNode
121		{
122	17	$metadata = new ObjectMetadata($rootObject);
123
124	17	if (!empty($classMapping)) {
125	6	$this->applyClassConstraints($metadata, $classMapping);
126		}
127	11
128		foreach ($propertiesMapping as $property => $params) {
129		if (!empty($params['cascade']) && isset($args[$property])) {
130		$options = $params['cascade'];
131		$type = $options['referenceType'];
132
133		if ($options['isCollection']) {
134		$rootObject->$property = $this->createCollectionNode($args[$property], $type, $rootObject);
135		} else {
136		$rootObject->$property = $this->createObjectNode($args[$property], $type, $rootObject);
137		}
138
139		$valid = new Valid();
140
141	17	if (!empty($options['groups'])) {
142		$valid->groups = $options['groups'];
143	17	}
144
145	17	$metadata->addPropertyConstraint($property, $valid);
146		} else {
147	17	$rootObject->$property = $args[$property] ?? null;
148	17	}
149	6
150	6	$this->restructureShortForm($params);
151
152	6	foreach ($params ?? [] as $key => $value) {
153	2	if (null === $value) {
154		continue;
155	6	}
156
157		switch ($key) {
158	6	case 'link':
159		[$fqcn, $property, $type] = $value;
160	6
161	4	if (!\in_array($fqcn, $this->cachedMetadata)) {
162		$this->cachedMetadata[$fqcn] = $this->validator->getMetadataFor($fqcn);
163		}
164	6
165		// Get metadata from the property and it's getters
166	17	$propertyMetadata = $this->cachedMetadata[$fqcn]->getPropertyMetadata($property);
167
168		foreach ($propertyMetadata as $memberMetadata) {
169	17	// Allow only constraints specified by the "link" matcher
170	17	if (self::TYPE_GETTER === $type) {
171	17	if (!$memberMetadata instanceof GetterMetadata) {
172		continue;
173		}
174	16	} elseif (self::TYPE_PROPERTY === $type) {
175	16	if (!$memberMetadata instanceof PropertyMetadata) {
176	2	continue;
177		}
178	2	}
179	2
180		$metadata->addPropertyConstraints($property, $memberMetadata->getConstraints());
181		}
182
183	2	break;
184		case 'constraints':
185	2	$metadata->addPropertyConstraints($property, $value);
186		break;
187	2	case 'cascade':
188	2	break;
189	2	}
190		}
191	2	}
192	2
193	2	$this->metadataFactory->addMetadata($metadata);
194
195		return $rootObject;
196		}
197	2
198		/**
199		* @param ObjectType\|InputObjectType $type
200	2	*/
201	14	private function createCollectionNode(array $values, $type, ValidationNode $parent): array
202	14	{
203	14	$collection = [];
204	6
205	6	foreach ($values as $value) {
206		$collection[] = $this->createObjectNode($value, $type, $parent);
207		}
208
209		return $collection;
210	17	}
211
212	17	/**
213		* @param ObjectType\|InputObjectType $type
214		*/
215		private function createObjectNode(array $value, $type, ValidationNode $parent): ValidationNode
216		{
217		$classMapping = $type->config['validation'] ?? [];
218		$propertiesMapping = [];
219
220		foreach ($type->getFields() as $fieldName => $inputField) {
221		$propertiesMapping[$fieldName] = $inputField->config['validation'];
222	2	}
223
224	2	return $this->buildValidationTree(
225		new ValidationNode($type, null, $parent, $this->resolverArgs),
226	2	$propertiesMapping,
227	2	$classMapping,
228		$value
229		);
230	2	}
231
232		private function applyClassConstraints(ObjectMetadata $metadata, array $rules): void
233		{
234		$this->restructureShortForm($rules);
235
236		foreach ($rules as $key => $value) {
237		if (null === $value) {
238		continue;
239		}
240	6
241		switch ($key) {
242		case 'link':
243	6	$linkedMetadata = $this->validator->getMetadataFor($value);
244		$metadata->addConstraints($linkedMetadata->getConstraints());
245		break;
246	6	case 'constraints':
247	6	foreach ($value as $constraint) {
248		if ($constraint instanceof Constraint) {
249		$metadata->addConstraint($constraint);
250	6	} elseif ($constraint instanceof GroupSequence) {
251		$metadata->setGroupSequence($constraint);
252		}
253		}
254		break;
255		}
256		}
257	17	}
258
259	17	/**
260	8	* @param array $rules
261	8	*/
262		private function restructureShortForm(array &$rules): void
263		{
264	8	if (isset($rules[0])) {
265	8	$rules = ['constraints' => $rules];
266	2	}
267	2	}
268	2
269	8	/**
270	8	* @param string\|array\|null $groups
271	8	*
272	2	* @throws ArgumentsValidationException
273	6	*/
274	6	public function __invoke($groups = null, bool $throw = true): ?ConstraintViolationListInterface
275		{
276		return $this->validate($groups, $throw);
277	8	}
278		}
279

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Pull Request — master (#682)

InputValidator::validate() A

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