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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Serializer\Normalizer;
- use Symfony\Component\Serializer\Exception\InvalidArgumentException;
- use Symfony\Component\Serializer\Exception\UnexpectedValueException;
- /**
- * Normalizes an instance of {@see \DateInterval} to an interval string.
- * Denormalizes an interval string to an instance of {@see \DateInterval}.
- *
- * @author Jérôme Parmentier <jerome@prmntr.me>
- */
- class DateIntervalNormalizer implements NormalizerInterface, DenormalizerInterface, CacheableSupportsMethodInterface
- {
- public const FORMAT_KEY = 'dateinterval_format';
- private $defaultContext = [
- self::FORMAT_KEY => '%rP%yY%mM%dDT%hH%iM%sS',
- ];
- public function __construct(array $defaultContext = [])
- {
- $this->defaultContext = array_merge($this->defaultContext, $defaultContext);
- }
- /**
- * {@inheritdoc}
- *
- * @throws InvalidArgumentException
- *
- * @return string
- */
- public function normalize($object, string $format = null, array $context = [])
- {
- if (!$object instanceof \DateInterval) {
- throw new InvalidArgumentException('The object must be an instance of "\DateInterval".');
- }
- return $object->format($context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY]);
- }
- /**
- * {@inheritdoc}
- */
- public function supportsNormalization($data, string $format = null)
- {
- return $data instanceof \DateInterval;
- }
- /**
- * {@inheritdoc}
- */
- public function hasCacheableSupportsMethod(): bool
- {
- return __CLASS__ === static::class;
- }
- /**
- * {@inheritdoc}
- *
- * @throws InvalidArgumentException
- * @throws UnexpectedValueException
- *
- * @return \DateInterval
- */
- public function denormalize($data, string $type, string $format = null, array $context = [])
- {
- if (!\is_string($data)) {
- throw new InvalidArgumentException(sprintf('Data expected to be a string, "%s" given.', get_debug_type($data)));
- }
- if (!$this->isISO8601($data)) {
- throw new UnexpectedValueException('Expected a valid ISO 8601 interval string.');
- }
- $dateIntervalFormat = $context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY];
- $signPattern = '';
- switch (substr($dateIntervalFormat, 0, 2)) {
- case '%R':
- $signPattern = '[-+]';
- $dateIntervalFormat = substr($dateIntervalFormat, 2);
- break;
- case '%r':
- $signPattern = '-?';
- $dateIntervalFormat = substr($dateIntervalFormat, 2);
- break;
- }
- $valuePattern = '/^'.$signPattern.preg_replace('/%([yYmMdDhHiIsSwW])(\w)/', '(?:(?P<$1>\d+)$2)?', preg_replace('/(T.*)$/', '($1)?', $dateIntervalFormat)).'$/';
- if (!preg_match($valuePattern, $data)) {
- throw new UnexpectedValueException(sprintf('Value "%s" contains intervals not accepted by format "%s".', $data, $dateIntervalFormat));
- }
- try {
- if ('-' === $data[0]) {
- $interval = new \DateInterval(substr($data, 1));
- $interval->invert = 1;
- return $interval;
- }
- if ('+' === $data[0]) {
- return new \DateInterval(substr($data, 1));
- }
- return new \DateInterval($data);
- } catch (\Exception $e) {
- throw new UnexpectedValueException($e->getMessage(), $e->getCode(), $e);
- }
- }
- /**
- * {@inheritdoc}
- */
- public function supportsDenormalization($data, string $type, string $format = null)
- {
- return \DateInterval::class === $type;
- }
- private function isISO8601(string $string): bool
- {
- return preg_match('/^[\-+]?P(?=\w*(?:\d|%\w))(?:\d+Y|%[yY]Y)?(?:\d+M|%[mM]M)?(?:(?:\d+D|%[dD]D)|(?:\d+W|%[wW]W))?(?:T(?:\d+H|[hH]H)?(?:\d+M|[iI]M)?(?:\d+S|[sS]S)?)?$/', $string);
- }
- }
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