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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\link\Plugin\Validation\Constraint\LinkExternalProtocolsConstraintValidator. | |
| */ | |
| namespace Drupal\link\Plugin\Validation\Constraint; | |
| use Drupal\Component\Utility\UrlHelper; | |
| use Symfony\Component\Validator\Constraint; | |
| use Symfony\Component\Validator\ConstraintValidatorInterface; | |
| use Symfony\Component\Validator\ExecutionContextInterface; | |
| /** | |
| * Validates the LinkExternalProtocols constraint. | |
| */ | |
| class LinkExternalProtocolsConstraintValidator 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 $e) { | |
| return; | |
| } | |
| // Disallow external URLs using untrusted protocols. | |
| if ($url->isExternal() && !in_array(parse_url($url->getUri(), PHP_URL_SCHEME), UrlHelper::getAllowedProtocols())) { | |
| $this->context->addViolation($constraint->message, array('@uri' => $value->uri)); | |
| } | |
| } | |
| } | |
| } |