/protected/extensions/doctrine/vendors/Symfony/Component/Validator/Constraints/EmailValidator.php
PHP | 80 lines | 37 code | 13 blank | 30 comment | 11 complexity | 434465387e0e3e2a33c6e95fe83c73e5 MD5 | raw file
Possible License(s): BSD-2-Clause, LGPL-2.1, BSD-3-Clause
- <?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\Validator\Constraints;
- use Symfony\Component\Validator\Constraint;
- use Symfony\Component\Validator\ConstraintValidator;
- use Symfony\Component\Validator\Exception\UnexpectedTypeException;
- /**
- * @api
- */
- class EmailValidator extends ConstraintValidator
- {
- /**
- * Checks if the passed value is valid.
- *
- * @param mixed $value The value that should be validated
- * @param Constraint $constraint The constraint for the validation
- *
- * @return Boolean Whether or not the value is valid
- *
- * @api
- */
- public function isValid($value, Constraint $constraint)
- {
- if (null === $value || '' === $value) {
- return true;
- }
- if (!is_scalar($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
- $valid = false;
- }
- // Check MX records
- if ($valid && $constraint->checkMX) {
- $valid = $this->checkMX($host);
- }
- }
- if (!$valid) {
- $this->setMessage($constraint->message, array('{{ value }}' => $value));
- return false;
- }
- return true;
- }
- /**
- * Check DNS Records for MX type.
- *
- * @param string $host Host name
- *
- * @return Boolean
- */
- private function checkMX($host)
- {
- return checkdnsrr($host, 'MX');
- }
- }