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<?php |
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/** |
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* Copyright 2014 SURFnet bv |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace Surfnet\StepupBundle\Request; |
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use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter; |
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use Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterInterface; |
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use Surfnet\StepupBundle\Exception\BadJsonRequestException; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\Validator\Validator\ValidatorInterface; |
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/** |
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* ParamConverter that converts JSON objects with underscore notation mapped to snake-cased, public properties of |
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* classes that implement JsonConvertible. |
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* |
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* @see JsonConvertible |
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*/ |
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class JsonConvertibleParamConverter implements ParamConverterInterface |
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{ |
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/** |
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* @var ValidatorInterface |
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*/ |
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private $validator; |
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public function __construct(ValidatorInterface $validator) |
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{ |
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$this->validator = $validator; |
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} |
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public function apply(Request $request, ParamConverter $configuration) |
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{ |
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$name = $configuration->getName(); |
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$snakeCasedName = $this->camelCaseToSnakeCase($name); |
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$class = $configuration->getClass(); |
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$json = $request->getContent(); |
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$object = json_decode($json, true); |
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if (!isset($object[$snakeCasedName]) || !is_array($object[$snakeCasedName])) { |
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throw new BadJsonRequestException([sprintf("Missing parameter '%s'", $name)]); |
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} |
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$object = $object[$snakeCasedName]; |
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$convertedObject = new $class; |
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$errors = []; |
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foreach ($object as $key => $value) { |
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$properlyCasedKey = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $key)))); |
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if (!property_exists($convertedObject, $properlyCasedKey)) { |
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$errors[] = sprintf("Unknown property '%s.%s'", $snakeCasedName, $key); |
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continue; |
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} |
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$convertedObject->$properlyCasedKey = $value; |
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} |
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$violations = $this->validator->validate($convertedObject); |
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if (count($errors) + count($violations) > 0) { |
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throw BadJsonRequestException::createForViolationsAndErrors($violations, $name, $errors); |
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} |
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$request->attributes->set($name, $convertedObject); |
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} |
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public function supports(ParamConverter $configuration) |
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{ |
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$class = $configuration->getClass(); |
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if (!is_string($class)) { |
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return null; |
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} |
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return is_subclass_of($class, 'Surfnet\StepupBundle\Request\JsonConvertible'); |
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} |
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/** |
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* @param string $camelCase |
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* @return string |
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* @see \Symfony\Component\Serializer\NameConverter\CamelCaseToSnakeCaseNameConverter |
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*/ |
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private function camelCaseToSnakeCase($camelCase) |
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{ |
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$snakeCase = ''; |
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$len = strlen($camelCase); |
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for ($i = 0; $i < $len; $i++) { |
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if (ctype_upper($camelCase[$i])) { |
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$snakeCase .= '_'.strtolower($camelCase[$i]); |
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} else { |
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$snakeCase .= strtolower($camelCase[$i]); |
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} |
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} |
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return $snakeCase; |
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} |
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} |
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OpenConext /
Stepup-bundle
