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<?php |
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/* |
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* This file is part of the Silverback API Component Bundle Project |
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* |
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* (c) Daniel West <[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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declare(strict_types=1); |
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namespace Silverback\ApiComponentBundle\Form\Handler; |
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use InvalidArgumentException; |
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use JsonException; |
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use Silverback\ApiComponentBundle\ApiComponentBundleEvents; |
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use Silverback\ApiComponentBundle\Dto\Form\FormView; |
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use Silverback\ApiComponentBundle\Entity\Component\Form; |
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use Silverback\ApiComponentBundle\Event\FormSuccessEvent; |
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use Silverback\ApiComponentBundle\Form\Factory\FormFactory; |
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use Symfony\Component\EventDispatcher\EventDispatcher; |
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use Symfony\Component\Form\FormInterface; |
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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\BadRequestHttpException; |
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use Symfony\Component\Serializer\SerializerInterface; |
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use function json_decode; |
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/** |
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* @author Daniel West <[email protected]> |
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*/ |
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class FormSubmitHandler |
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{ |
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private FormFactory $formFactory; |
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private EventDispatcher $eventDispatcher; |
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private SerializerInterface $serializer; |
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public function __construct(FormFactory $formFactory, EventDispatcher $eventDispatcher, SerializerInterface $serializer) |
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{ |
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$this->formFactory = $formFactory; |
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$this->eventDispatcher = $eventDispatcher; |
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$this->serializer = $serializer; |
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} |
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public function handle(Request $request, Form $formResource, string $_format): Response |
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{ |
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$builder = $this->formFactory->create($formResource); |
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$form = $builder->getForm(); |
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$formData = $this->deserializeFormData($form, $request->getContent()); |
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$isPatchRequest = Request::METHOD_PATCH === $request->getMethod(); |
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$form->submit($formData, !$isPatchRequest); |
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if ($isPatchRequest) { |
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return $this->handlePatch($formResource, $form, $_format, $formData); |
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} |
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return $this->handlePost($formResource, $form, $_format); |
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} |
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private function handlePatch(Form $formResource, FormInterface $form, string $_format, array $formData): Response |
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{ |
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$isFormViewValid = static function (FormView $formView): bool { |
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return $formView->getVars()['valid']; |
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}; |
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$dataCount = \count($formData); |
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if (1 === $dataCount) { |
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$formItem = $this->getChildFormByKey($form, $formData); |
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$formResource->form = $formView = new FormView($formItem); |
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return $this->getResponse($formResource, $_format, $isFormViewValid($formView)); |
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} |
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$formResources = []; |
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$valid = true; |
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foreach ($formData as $key => $value) { |
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$dataItem = clone $formResource; |
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$formItem = $this->getChildFormByKey($form, $formData[$key]); |
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$dataItem->form = $formView = new FormView($formItem); |
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$formResources[] = $dataItem; |
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if ($valid && !$isFormViewValid($formView)) { |
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$valid = false; |
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} |
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} |
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return $this->getResponse($formResources, $_format, $valid); |
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} |
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private function handlePost(Form $formResource, FormInterface $form, string $_format): Response |
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{ |
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$valid = $form->isValid(); |
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$formResource->form = new FormView($form); |
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$context = []; |
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if ($valid) { |
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$event = new FormSuccessEvent($formResource, $form); |
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$this->eventDispatcher->dispatch($event, ApiComponentBundleEvents::FORM_SUCCESS); |
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$context = $event->serializerContext; |
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} |
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return $this->getResponse($formResource, $_format, $valid, $context); |
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} |
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private function deserializeFormData(FormInterface $form, $content): array |
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{ |
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try { |
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$decoded = json_decode($content, true, 512, JSON_THROW_ON_ERROR | 0); |
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} catch (JsonException $exception) { |
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throw new InvalidArgumentException('json_decode error: ' . $exception->getMessage()); |
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} |
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if (!isset($decoded[$form->getName()])) { |
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throw new BadRequestHttpException(sprintf('Form object key could not be found. Expected: <b>%s</b>: { "input_name": "input_value" }', $form->getName())); |
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} |
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return $decoded[$form->getName()]; |
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} |
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private function getChildFormByKey(FormInterface $form, array $formData): FormInterface |
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{ |
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$child = $form->get($key = key($formData)); |
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while ($this->isSequentialStringsArray($formData = $formData[$key]) && $count = \count($formData)) { |
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if (1 === $count) { |
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$child = $child->get($key = key($formData)); |
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continue; |
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} |
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// front-end should submit empty objects for each item in a collection up to the one we are trying to validate |
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// so let us just get the last item to validate |
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// key should be numeric, if not it is probably first and second for repeated field. These should both be checked... |
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$key = ($count - 1); |
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if (!$child->has($key)) { |
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break; |
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} |
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$child = $child->get($key); |
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} |
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return $child; |
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} |
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private function isSequentialStringsArray($data): bool |
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{ |
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return \is_array($data) && !$this->isAssocArray($data) && $this->arrayIsStrings($data); |
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} |
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private function isAssocArray(array $arr): bool |
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{ |
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if ([] === $arr) { |
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return false; |
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} |
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return array_keys($arr) !== range(0, \count($arr) - 1); |
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} |
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private function arrayIsStrings(array $arr): bool |
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{ |
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foreach ($arr as $item) { |
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if (!\is_string($item)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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private function getResponse( |
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$data, |
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string $_format, |
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bool $valid, |
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array $context = [] |
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): Response { |
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$response = new Response(); |
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$response->setStatusCode($valid ? Response::HTTP_OK : Response::HTTP_BAD_REQUEST); |
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$response->setContent($this->serializer->serialize($data, $_format, $context)); |
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return $response; |
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} |
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} |
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components-web-app /
api-components-bundle
