public function LinkTypeConstraintValidator::validate in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/link/src/Plugin/Validation/Constraint/LinkTypeConstraintValidator.php \Drupal\link\Plugin\Validation\Constraint\LinkTypeConstraintValidator::validate()

File

core/modules/link/src/Plugin/Validation/Constraint/LinkTypeConstraintValidator.php, line 17

Class

LinkTypeConstraintValidator

Constraint validator for links receiving data allowed by its settings.

Namespace

Drupal\link\Plugin\Validation\Constraint

Code

public function validate($value, Constraint $constraint) {
  if (isset($value)) {
    $uri_is_valid = TRUE;

    /** @var $link_item \Drupal\link\LinkItemInterface */
    $link_item = $value;
    $link_type = $link_item
      ->getFieldDefinition()
      ->getSetting('link_type');

    // Try to resolve the given URI to a URL. It may fail if it's schemeless.
    try {
      $url = $link_item
        ->getUrl();
    } catch (\InvalidArgumentException $e) {
      $uri_is_valid = FALSE;
    }

    // If the link field doesn't support both internal and external links,
    // check whether the URL (a resolved URI) is in fact violating either
    // restriction.
    if ($uri_is_valid && $link_type !== LinkItemInterface::LINK_GENERIC) {
      if (!($link_type & LinkItemInterface::LINK_EXTERNAL) && $url
        ->isExternal()) {
        $uri_is_valid = FALSE;
      }
      if (!($link_type & LinkItemInterface::LINK_INTERNAL) && !$url
        ->isExternal()) {
        $uri_is_valid = FALSE;
      }
    }
    if (!$uri_is_valid) {
      $this->context
        ->addViolation($constraint->message, [
        '@uri' => $link_item->uri,
      ]);
    }
  }
}