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<?php |
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namespace Overblog\GraphQLBundle\Definition\ConfigProcessor; |
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use GraphQL\Type\Definition\ResolveInfo; |
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use Overblog\GraphQLBundle\Definition\LazyConfig; |
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use Overblog\GraphQLBundle\Error\UserWarning; |
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use Overblog\GraphQLBundle\Resolver\AccessResolver; |
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final class AclConfigProcessor implements ConfigProcessorInterface |
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{ |
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/** @var AccessResolver */ |
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private $accessResolver; |
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/** @var callable */ |
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private $defaultResolver; |
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public function __construct(AccessResolver $accessResolver, callable $defaultResolver) |
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{ |
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$this->accessResolver = $accessResolver; |
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$this->defaultResolver = $defaultResolver; |
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} |
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public static function acl(array $fields, AccessResolver $accessResolver, callable $defaultResolver) |
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{ |
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$deniedAccess = static function () { |
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throw new UserWarning('Access denied to this field.'); |
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}; |
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foreach ($fields as &$field) { |
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if (isset($field['access']) && true !== $field['access']) { |
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$accessChecker = $field['access']; |
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if (false === $accessChecker) { |
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$field['resolve'] = $deniedAccess; |
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} elseif (\is_callable($accessChecker)) { |
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$field['resolve'] = function ($value, $args, $context, ResolveInfo $info) use ($field, $accessChecker, $accessResolver, $defaultResolver) { |
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$resolverCallback = self::findFieldResolver($field, $info, $defaultResolver); |
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return $accessResolver->resolve($accessChecker, $resolverCallback, [$value, $args, $context, $info], $field['useStrictAccess']); |
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}; |
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} |
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} |
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} |
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return $fields; |
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} |
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public function process(LazyConfig $lazyConfig) |
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{ |
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$lazyConfig->addPostLoader(function ($config) { |
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if (isset($config['fields']) && \is_callable($config['fields'])) { |
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$config['fields'] = function () use ($config) { |
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$fields = $config['fields'](); |
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return static::acl($fields, $this->accessResolver, $this->defaultResolver); |
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}; |
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} |
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return $config; |
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}); |
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return $lazyConfig; |
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} |
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/** |
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* @param array $field |
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* @param ResolveInfo $info |
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* @param callable $defaultResolver |
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* |
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* @return callable |
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*/ |
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private static function findFieldResolver(array $field, ResolveInfo $info, callable $defaultResolver) |
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{ |
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if (isset($field['resolve'])) { |
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$resolver = $field['resolve']; |
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} elseif (isset($info->parentType->config['resolveField'])) { |
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$resolver = $info->parentType->config['resolveField']; |
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} else { |
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$resolver = $defaultResolver; |
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} |
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return $resolver; |
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} |
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} |
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overblog /
GraphQLBundle
