public function EmailValidator::validate

Checks if the passed value is valid.

@api

Parameters

mixed $value The value that should be validated:

Constraint $constraint The constraint for the validation:

Overrides ConstraintValidatorInterface::validate

File

drupal/core/vendor/symfony/validator/Symfony/Component/Validator/Constraints/EmailValidator.php, line 28

Class

EmailValidator

@author Bernhard Schussek <bschussek@gmail.com>

Namespace

Code

public function validate($value, Constraint $constraint) {
  if (null === $value || '' === $value) {
    return;
  }
  if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
    throw new UnexpectedTypeException($value, 'string');
  }
  $value = (string) $value;
  $valid = filter_var($value, FILTER_VALIDATE_EMAIL);
  if ($valid) {
    $host = substr($value, strpos($value, '@') + 1);
    if (version_compare(PHP_VERSION, '5.3.3', '<') && strpos($host, '.') === false) {

      // Likely not a FQDN, bug in PHP FILTER_VALIDATE_EMAIL prior to PHP 5.3.3
      $valid = false;
    }

    // Check for host DNS resource records
    if ($valid && $constraint->checkMX) {
      $valid = $this
        ->checkMX($host);
    }
    elseif ($valid && $constraint->checkHost) {
      $valid = $this
        ->checkHost($host);
    }
  }
  if (!$valid) {
    $this->context
      ->addViolation($constraint->message, array(
      '{{ value }}' => $value,
    ));
  }
}