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<?php |
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/******************************************************************************* |
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* This file is part of the GraphQL Bundle package. |
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* |
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* (c) YnloUltratech <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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******************************************************************************/ |
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namespace Ynlo\GraphQLBundle\Controller; |
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use GraphQL\Error\Debug; |
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use GraphQL\GraphQL; |
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use GraphQL\Validator\DocumentValidator; |
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use GraphQL\Validator\Rules; |
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use Psr\Log\LoggerInterface; |
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use Symfony\Component\HttpFoundation\JsonResponse; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpKernel\Exception\HttpException; |
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use Ynlo\GraphQLBundle\Schema\SchemaCompiler; |
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class GraphQLEndpointController |
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{ |
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private $compiler; |
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private $debug; |
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private $logger; |
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public function __construct(SchemaCompiler $compiler, bool $debug, LoggerInterface $logger = null) |
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{ |
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$this->compiler = $compiler; |
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$this->debug = $debug; |
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$this->logger = $logger; |
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} |
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public function __invoke(Request $request): JsonResponse |
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{ |
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if (!$this->debug && $request->getMethod() !== Request::METHOD_POST) { |
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throw new HttpException(Response::HTTP_BAD_REQUEST, 'The method should be POST to talk with GraphQL API'); |
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} |
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$input = json_decode($request->getContent(), true); |
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$query = $input['query']; |
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$context = null; |
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$variableValues = $input['variables'] ?? null; |
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$operationName = $input['operationName'] ?? null; |
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// this will override global validation rules for this request |
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$validationRules = $this->getValidationRules($query); |
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try { |
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$schema = $this->compiler->compile(); |
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$schema->assertValid(); |
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$result = GraphQL::executeQuery($schema, $query, null, $context, $variableValues, $operationName, null, $validationRules); |
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$debug = false; |
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if ($this->debug) { |
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$debug = Debug::INCLUDE_DEBUG_MESSAGE | Debug::INCLUDE_TRACE; |
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} |
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$output = $result->toArray($debug); |
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$statusCode = Response::HTTP_OK; |
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if (isset($output['errors'])) { |
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$statusCode = Response::HTTP_BAD_REQUEST; |
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} |
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} catch (\Exception $e) { |
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if (null !== $this->logger) { |
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$this->logger->error($e->getMessage(), $e->getTrace()); |
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} |
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$statusCode = Response::HTTP_INTERNAL_SERVER_ERROR; |
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$output['errors']['message'] = $e->getMessage(); |
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$output['errors']['category'] = 'internal'; |
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if ($this->debug) { |
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$output['errors']['trace'] = $e->getTraceAsString(); |
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} |
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} |
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return JsonResponse::create($output, $statusCode); |
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} |
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public function addGlobalValidationRules(array $validationRules): void |
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{ |
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$rules = []; |
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if (!empty($validationRules['query_complexity'])) { |
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$rules[] = new Rules\QueryComplexity($validationRules['query_complexity']); |
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} |
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if (!empty($validationRules['query_depth'])) { |
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$rules[] = new Rules\QueryDepth($validationRules['query_depth']); |
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} |
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if (!empty($validationRules['disable_introspection'])) { |
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$rules[] = new Rules\DisableIntrospection(); |
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} |
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array_map([DocumentValidator::class, 'addRule'], $rules); |
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} |
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private function getValidationRules(string $query): ?array |
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{ |
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$rules = []; |
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// disable query complexity limit for introspection query |
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if (0 === strpos($query, 'query IntrospectionQuery {') && null !== DocumentValidator::getRule('QueryComplexity')) { |
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$rules[] = new Rules\QueryComplexity(Rules\QueryComplexity::DISABLED); |
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} |
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if (!$rules) { |
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return null; |
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} |
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return array_merge(GraphQL::getStandardValidationRules(), $rules); |
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} |
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} |
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ynloultratech /
graphql-bundle
