Mercurial > hg > isophonics-drupal-site
view vendor/symfony/validator/Constraints/EmailValidator.php @ 13:5fb285c0d0e3
Update Drupal core to 8.4.7 via Composer. Security update; I *think* we've
been lucky to get away with this so far, as we don't support self-registration
which seems to be used by the so-called "drupalgeddon 2" attack that 8.4.5
was vulnerable to.
author | Chris Cannam |
---|---|
date | Mon, 23 Apr 2018 09:33:26 +0100 |
parents | 4c8ae668cc8c |
children | 1fec387a4317 |
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<?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 Egulias\EmailValidator\Validation\EmailValidation; use Egulias\EmailValidator\Validation\NoRFCWarningsValidation; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; use Symfony\Component\Validator\Exception\RuntimeException; use Symfony\Component\Validator\Exception\UnexpectedTypeException; /** * @author Bernhard Schussek <bschussek@gmail.com> */ class EmailValidator extends ConstraintValidator { /** * @var bool */ private $isStrict; public function __construct($strict = false) { $this->isStrict = $strict; } /** * {@inheritdoc} */ public function validate($value, Constraint $constraint) { if (!$constraint instanceof Email) { throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Email'); } if (null === $value || '' === $value) { return; } if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) { throw new UnexpectedTypeException($value, 'string'); } $value = (string) $value; if (null === $constraint->strict) { $constraint->strict = $this->isStrict; } if ($constraint->strict) { if (!class_exists('\Egulias\EmailValidator\EmailValidator')) { throw new RuntimeException('Strict email validation requires egulias/email-validator ~1.2|~2.0'); } $strictValidator = new \Egulias\EmailValidator\EmailValidator(); if (interface_exists(EmailValidation::class) && !$strictValidator->isValid($value, new NoRFCWarningsValidation())) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Email::INVALID_FORMAT_ERROR) ->addViolation(); return; } elseif (!interface_exists(EmailValidation::class) && !$strictValidator->isValid($value, false, true)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Email::INVALID_FORMAT_ERROR) ->addViolation(); return; } } elseif (!preg_match('/^.+\@\S+\.\S+$/', $value)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Email::INVALID_FORMAT_ERROR) ->addViolation(); return; } $host = (string) substr($value, strrpos($value, '@') + 1); // Check for host DNS resource records if ($constraint->checkMX) { if (!$this->checkMX($host)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Email::MX_CHECK_FAILED_ERROR) ->addViolation(); } return; } if ($constraint->checkHost && !$this->checkHost($host)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Email::HOST_CHECK_FAILED_ERROR) ->addViolation(); } } /** * Check DNS Records for MX type. * * @param string $host Host * * @return bool */ private function checkMX($host) { return '' !== $host && checkdnsrr($host, 'MX'); } /** * Check if one of MX, A or AAAA DNS RR exists. * * @param string $host Host * * @return bool */ private function checkHost($host) { return '' !== $host && ($this->checkMX($host) || (checkdnsrr($host, 'A') || checkdnsrr($host, 'AAAA'))); } }