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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\link\Plugin\Validation\Constraint\LinkNotExistingInternalConstraintValidator. | |
| */ | |
| namespace Drupal\link\Plugin\Validation\Constraint; | |
| use Symfony\Component\Routing\Exception\InvalidParameterException; | |
| use Symfony\Component\Routing\Exception\MissingMandatoryParametersException; | |
| use Symfony\Component\Routing\Exception\RouteNotFoundException; | |
| use Symfony\Component\Validator\Constraint; | |
| use Symfony\Component\Validator\ConstraintValidatorInterface; | |
| use Symfony\Component\Validator\ExecutionContextInterface; | |
| /** | |
| * Validates the LinkNotExistingInternal constraint. | |
| */ | |
| class LinkNotExistingInternalConstraintValidator implements ConstraintValidatorInterface { | |
| /** | |
| * Stores the validator's state during validation. | |
| * | |
| * @var \Symfony\Component\Validator\ExecutionContextInterface | |
| */ | |
| protected $context; | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function initialize(ExecutionContextInterface $context) { | |
| $this->context = $context; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function validate($value, Constraint $constraint) { | |
| if (isset($value)) { | |
| try { | |
| /** @var \Drupal\Core\Url $url */ | |
| $url = $value->getUrl(); | |
| } | |
| // If the URL is malformed this constraint cannot check further. | |
| catch (\InvalidArgumentException $e) { | |
| return; | |
| } | |
| if ($url->isRouted()) { | |
| $allowed = TRUE; | |
| try { | |
| $url->toString(); | |
| } | |
| // The following exceptions are all possible during URL generation, and | |
| // should be considered as disallowed URLs. | |
| catch (RouteNotFoundException $e) { | |
| $allowed = FALSE; | |
| } | |
| catch (InvalidParameterException $e) { | |
| $allowed = FALSE; | |
| } | |
| catch (MissingMandatoryParametersException $e) { | |
| $allowed = FALSE; | |
| } | |
| if (!$allowed) { | |
| $this->context->addViolation($constraint->message, array('@uri' => $value->uri)); | |
| } | |
| } | |
| } | |
| } | |
| } |