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<?php |
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namespace Digia\GraphQL\SchemaValidator\Rule; |
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use Digia\GraphQL\Error\InvariantException; |
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use Digia\GraphQL\Error\ValidationException; |
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use Digia\GraphQL\Language\Node\DirectiveNode; |
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use Digia\GraphQL\Language\Node\NodeAwareInterface; |
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use Digia\GraphQL\Type\Definition\Directive; |
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use Digia\GraphQL\Type\Definition\DirectiveInterface; |
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use Digia\GraphQL\Util\NameValidator; |
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use function Digia\GraphQL\Type\isInputType; |
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class DirectivesRule extends AbstractRule |
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{ |
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/** |
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* @var NameValidator |
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*/ |
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protected $nameValidator; |
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/** |
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* DirectivesRule constructor. |
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* @param NameValidator $nameValidator |
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*/ |
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public function __construct(NameValidator $nameValidator) |
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{ |
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$this->nameValidator = $nameValidator; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function evaluate(): void |
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{ |
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$directives = $this->context->getSchema()->getDirectives(); |
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foreach ($directives as $directive) { |
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if (!($directive instanceof DirectiveInterface)) { |
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$this->context->reportError( |
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new ValidationException( |
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\sprintf( |
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'Expected directive but got: %s.', |
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$directive instanceof NodeAwareInterface ? $directive->getAstNode() : $directive |
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) |
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) |
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); |
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return; |
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} |
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// Ensure they are named correctly. |
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$this->validateName($directive); |
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// TODO: Ensure proper locations. |
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// Ensure the arguments are valid. |
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$argumentNames = []; |
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foreach ($directive->getArguments() as $argument) { |
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$argumentName = $argument->getName(); |
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// Ensure they are named correctly. |
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$this->validateName($argument); |
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// Ensure they are unique per directive. |
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if (isset($argumentNames[$argumentName])) { |
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$this->context->reportError( |
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new ValidationException( |
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\sprintf( |
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'Argument @%s(%s:) can only be defined once.', |
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$directive->getName(), |
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$argumentName |
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), |
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$this->getAllDirectiveArgumentNodes($directive, $argumentName) |
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) |
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); |
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continue; |
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} |
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$argumentNames[$argumentName] = true; |
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// Ensure the type is an input type. |
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if (!isInputType($argument->getType())) { |
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$this->context->reportError( |
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new ValidationException( |
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\sprintf( |
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'The type of @%s(%s:) must be Input Type but got: %s.', |
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$directive->getName(), |
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$argumentName, |
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(string)$argument->getType() |
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), |
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$this->getAllDirectiveArgumentNodes($directive, $argumentName) |
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) |
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); |
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} |
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} |
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} |
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} |
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/** |
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* @param Directive $directive |
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* @param string $argumentName |
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* @return array |
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*/ |
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protected function getAllDirectiveArgumentNodes(Directive $directive, string $argumentName) |
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{ |
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$nodes = []; |
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/** @var DirectiveNode $directiveNode */ |
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$directiveNode = $directive->getAstNode(); |
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if (null !== $directiveNode) { |
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foreach ($directiveNode->getArguments() as $node) { |
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if ($node->getNameValue() === $argumentName) { |
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$nodes[] = $node; |
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} |
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} |
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} |
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return $nodes; |
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} |
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/** |
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* @param mixed $node |
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* @throws InvariantException |
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*/ |
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protected function validateName($node): void |
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{ |
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// Ensure names are valid, however introspection types opt out. |
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$error = $this->nameValidator->isValidNameError($node->getName(), $node); |
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if (null !== $error) { |
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$this->context->reportError($error); |
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} |
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} |
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} |
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digiaonline /
graphql-php
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