<?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\EmailValidator as EguliasEmailValidator;
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\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
/**
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class EmailValidator extends ConstraintValidator
{
private const PATTERN_HTML5 = '/^[a-zA-Z0-9.!#$%&\'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$/';
private const PATTERN_LOOSE = '/^.+\@\S+\.\S+$/';
private const EMAIL_PATTERNS = [
Email::VALIDATION_MODE_LOOSE => self::PATTERN_LOOSE,
Email::VALIDATION_MODE_HTML5 => self::PATTERN_HTML5,
];
private $defaultMode;
public function __construct(string $defaultMode = Email::VALIDATION_MODE_LOOSE)
{
if (!\in_array($defaultMode, Email::$validationModes, true)) {
throw new \InvalidArgumentException('The "defaultMode" parameter value is not valid.');
}
$this->defaultMode = $defaultMode;
}
/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Email) {
throw new UnexpectedTypeException($constraint, Email::class);
}
if (null === $value || '' === $value) {
return;
}
if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
throw new UnexpectedValueException($value, 'string');
}
$value = (string) $value;
if ('' === $value) {
return;
}
if (null !== $constraint->normalizer) {
$value = ($constraint->normalizer)($value);
}
if (null === $constraint->mode) {
$constraint->mode = $this->defaultMode;
}
if (!\in_array($constraint->mode, Email::$validationModes, true)) {
throw new \InvalidArgumentException(sprintf('The "%s::$mode" parameter value is not valid.', get_debug_type($constraint)));
}
if (Email::VALIDATION_MODE_STRICT === $constraint->mode) {
$strictValidator = new EguliasEmailValidator();
if (interface_exists(EmailValidation::class) && !$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(self::EMAIL_PATTERNS[$constraint->mode], $value)) {
$this->context->buildViolation($constraint->message)
->setParameter('{{ value }}', $this->formatValue($value))
->setCode(Email::INVALID_FORMAT_ERROR)
->addViolation();
return;
}
}
}