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<?php |
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declare(strict_types=1); |
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namespace Damax\Bundle\ApiAuthBundle\DependencyInjection; |
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use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition; |
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use Symfony\Component\Config\Definition\Builder\TreeBuilder; |
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use Symfony\Component\Config\Definition\ConfigurationInterface; |
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class Configuration implements ConfigurationInterface |
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{ |
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const SIGNER_SYMMETRIC = 'symmetric'; |
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const SIGNER_ASYMMETRIC = 'asymmetric'; |
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private const SYMMETRIC_ALGOS = ['HS256', 'HS384', 'HS512']; |
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private const ASYMMETRIC_ALGOS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512']; |
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public function getConfigTreeBuilder(): TreeBuilder |
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{ |
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$treeBuilder = new TreeBuilder(); |
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/** @var ArrayNodeDefinition $rootNode */ |
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$rootNode = $treeBuilder->root('damax_api_auth'); |
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$rootNode |
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->addDefaultsIfNotSet() |
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->children() |
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->append($this->apiKeyNode('api_key')) |
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->append($this->jwtNode('jwt')) |
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->append($this->exceptionsNode('format_exceptions')) |
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->end() |
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; |
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return $treeBuilder; |
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} |
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private function apiKeyNode(string $name): ArrayNodeDefinition |
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{ |
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return (new ArrayNodeDefinition($name)) |
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->canBeEnabled() |
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->beforeNormalization() |
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->ifTrue(function (array $config): bool { |
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return !isset($config['tokens']); |
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}) |
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->then(function (array $config): array { |
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$enabled = $config['enabled']; |
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unset($config['enabled']); |
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return ['enabled' => $enabled, 'tokens' => $config]; |
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}) |
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->end() |
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->children() |
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->arrayNode('tokens') |
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->useAttributeAsKey(true) |
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->requiresAtLeastOneElement() |
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->prototype('scalar')->isRequired()->end() |
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->end() |
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->append($this->extractorsNode('extractors', [ |
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[ |
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'type' => 'header', |
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'name' => 'Authorization', |
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'prefix' => 'Token', |
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], |
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])) |
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->end() |
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; |
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} |
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private function jwtNode(string $name): ArrayNodeDefinition |
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{ |
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return (new ArrayNodeDefinition($name)) |
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->beforeNormalization() |
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->ifString() |
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->then(function (string $config): array { |
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return ['signer' => $config]; |
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}) |
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->end() |
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->canBeEnabled() |
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->children() |
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->append($this->extractorsNode('extractors', [ |
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[ |
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'type' => 'header', |
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'name' => 'Authorization', |
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'prefix' => 'Bearer', |
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], |
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])) |
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->scalarNode('identity_claim') |
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->cannotBeEmpty() |
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->end() |
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->arrayNode('builder') |
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->addDefaultsIfNotSet() |
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->children() |
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->scalarNode('issuer') |
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->cannotBeEmpty() |
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->end() |
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->scalarNode('audience') |
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->cannotBeEmpty() |
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->end() |
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->integerNode('ttl') |
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->defaultValue(3600) |
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->end() |
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->end() |
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->end() |
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->arrayNode('parser') |
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->children() |
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->arrayNode('issuers') |
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->requiresAtLeastOneElement() |
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->prototype('scalar') |
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->isRequired() |
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->end() |
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->end() |
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->scalarNode('audience') |
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->cannotBeEmpty() |
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->end() |
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->end() |
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->end() |
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->arrayNode('signer') |
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->isRequired() |
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->beforeNormalization() |
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->ifString() |
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->then(function (string $config): array { |
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return ['signing_key' => $config]; |
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}) |
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->end() |
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->beforeNormalization() |
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->ifTrue(function (?array $config): bool { |
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$type = $config['type'] ?? self::SIGNER_SYMMETRIC; |
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return self::SIGNER_ASYMMETRIC === $type; |
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}) |
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->then(function (array $config): array { |
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if (isset($config['signing_key'])) { |
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$config['signing_key'] = 'file://' . $config['signing_key']; |
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} |
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if (isset($config['verification_key'])) { |
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$config['verification_key'] = 'file://' . $config['verification_key']; |
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} |
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if (!isset($config['algorithm'])) { |
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$config['algorithm'] = self::ASYMMETRIC_ALGOS[0]; |
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} |
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return $config; |
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}) |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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return self::SIGNER_ASYMMETRIC === $config['type'] && empty($config['verification_key']); |
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}) |
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->thenInvalid('Verification key must be specified for "asymmetric" signer.') |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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return self::SIGNER_SYMMETRIC === $config['type'] && !in_array($config['algorithm'], self::SYMMETRIC_ALGOS); |
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}) |
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->thenInvalid('HMAC algorithm must be specified for "symmetric" signer.') |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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return self::SIGNER_ASYMMETRIC === $config['type'] && !in_array($config['algorithm'], self::ASYMMETRIC_ALGOS); |
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}) |
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->thenInvalid('RSA or ECDSA algorithm must be specified for "asymmetric" signer.') |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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if (self::SIGNER_SYMMETRIC === $config['type']) { |
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return false; |
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} |
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return !is_readable($config['signing_key']) || !is_readable($config['verification_key']); |
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}) |
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->thenInvalid('Signing and/or verification key is not readable.') |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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return self::SIGNER_SYMMETRIC === $config['type'] && !empty($config['verification_key']); |
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}) |
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->thenInvalid('Verification key must no be specified for "symmetric" signer.') |
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->end() |
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->validate() |
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->ifTrue(function (array $config): bool { |
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return self::SIGNER_SYMMETRIC === $config['type'] && !empty($config['passphrase']); |
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}) |
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->thenInvalid('Passphrase must not be specified for "symmetric" signer.') |
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->end() |
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->children() |
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->enumNode('type') |
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->values(['symmetric', 'asymmetric']) |
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->defaultValue('symmetric') |
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->end() |
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->enumNode('algorithm') |
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->values(array_merge(self::SYMMETRIC_ALGOS, self::ASYMMETRIC_ALGOS)) |
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->defaultValue(self::SYMMETRIC_ALGOS[0]) |
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->end() |
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->scalarNode('signing_key') |
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->isRequired() |
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->end() |
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->scalarNode('verification_key') |
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->cannotBeEmpty() |
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->end() |
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->scalarNode('passphrase') |
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->cannotBeEmpty() |
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->defaultValue('') |
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->end() |
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->end() |
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->end() |
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->end() |
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; |
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} |
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private function exceptionsNode(string $name): ArrayNodeDefinition |
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{ |
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return (new ArrayNodeDefinition($name)) |
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->canBeEnabled() |
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->beforeNormalization() |
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->ifString() |
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->then(function (string $config): array { |
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return ['enabled' => true, 'base_url' => $config]; |
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}) |
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->end() |
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->children() |
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->scalarNode('base_url') |
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->defaultValue('/') |
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->end() |
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->end() |
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; |
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} |
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private function extractorsNode(string $name, array $defaults): ArrayNodeDefinition |
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{ |
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return (new ArrayNodeDefinition($name)) |
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->prototype('array') |
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->children() |
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->enumNode('type') |
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->isRequired() |
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->values(['header', 'query', 'cookie']) |
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->end() |
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->scalarNode('name') |
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->isRequired() |
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->end() |
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->scalarNode('prefix') |
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->cannotBeEmpty() |
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->end() |
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->end() |
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->end() |
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->defaultValue($defaults) |
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; |
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} |
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} |
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lakiboy /
damax-api-auth-bundle
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