annotate vendor/symfony/validator/Constraints/EmailValidator.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 /*
Chris@0 4 * This file is part of the Symfony package.
Chris@0 5 *
Chris@0 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@0 7 *
Chris@0 8 * For the full copyright and license information, please view the LICENSE
Chris@0 9 * file that was distributed with this source code.
Chris@0 10 */
Chris@0 11
Chris@0 12 namespace Symfony\Component\Validator\Constraints;
Chris@0 13
Chris@0 14 use Egulias\EmailValidator\Validation\EmailValidation;
Chris@0 15 use Egulias\EmailValidator\Validation\NoRFCWarningsValidation;
Chris@0 16 use Symfony\Component\Validator\Constraint;
Chris@0 17 use Symfony\Component\Validator\ConstraintValidator;
Chris@0 18 use Symfony\Component\Validator\Exception\RuntimeException;
Chris@0 19 use Symfony\Component\Validator\Exception\UnexpectedTypeException;
Chris@0 20
Chris@0 21 /**
Chris@0 22 * @author Bernhard Schussek <bschussek@gmail.com>
Chris@0 23 */
Chris@0 24 class EmailValidator extends ConstraintValidator
Chris@0 25 {
Chris@0 26 private $isStrict;
Chris@0 27
Chris@14 28 /**
Chris@14 29 * @param bool $strict
Chris@14 30 */
Chris@0 31 public function __construct($strict = false)
Chris@0 32 {
Chris@0 33 $this->isStrict = $strict;
Chris@0 34 }
Chris@0 35
Chris@0 36 /**
Chris@0 37 * {@inheritdoc}
Chris@0 38 */
Chris@0 39 public function validate($value, Constraint $constraint)
Chris@0 40 {
Chris@0 41 if (!$constraint instanceof Email) {
Chris@0 42 throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Email');
Chris@0 43 }
Chris@0 44
Chris@0 45 if (null === $value || '' === $value) {
Chris@0 46 return;
Chris@0 47 }
Chris@0 48
Chris@17 49 if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
Chris@0 50 throw new UnexpectedTypeException($value, 'string');
Chris@0 51 }
Chris@0 52
Chris@0 53 $value = (string) $value;
Chris@0 54
Chris@0 55 if (null === $constraint->strict) {
Chris@0 56 $constraint->strict = $this->isStrict;
Chris@0 57 }
Chris@0 58
Chris@0 59 if ($constraint->strict) {
Chris@0 60 if (!class_exists('\Egulias\EmailValidator\EmailValidator')) {
Chris@0 61 throw new RuntimeException('Strict email validation requires egulias/email-validator ~1.2|~2.0');
Chris@0 62 }
Chris@0 63
Chris@0 64 $strictValidator = new \Egulias\EmailValidator\EmailValidator();
Chris@0 65
Chris@0 66 if (interface_exists(EmailValidation::class) && !$strictValidator->isValid($value, new NoRFCWarningsValidation())) {
Chris@0 67 $this->context->buildViolation($constraint->message)
Chris@0 68 ->setParameter('{{ value }}', $this->formatValue($value))
Chris@0 69 ->setCode(Email::INVALID_FORMAT_ERROR)
Chris@0 70 ->addViolation();
Chris@0 71
Chris@0 72 return;
Chris@0 73 } elseif (!interface_exists(EmailValidation::class) && !$strictValidator->isValid($value, false, true)) {
Chris@0 74 $this->context->buildViolation($constraint->message)
Chris@0 75 ->setParameter('{{ value }}', $this->formatValue($value))
Chris@0 76 ->setCode(Email::INVALID_FORMAT_ERROR)
Chris@0 77 ->addViolation();
Chris@0 78
Chris@0 79 return;
Chris@0 80 }
Chris@0 81 } elseif (!preg_match('/^.+\@\S+\.\S+$/', $value)) {
Chris@0 82 $this->context->buildViolation($constraint->message)
Chris@0 83 ->setParameter('{{ value }}', $this->formatValue($value))
Chris@0 84 ->setCode(Email::INVALID_FORMAT_ERROR)
Chris@0 85 ->addViolation();
Chris@0 86
Chris@0 87 return;
Chris@0 88 }
Chris@0 89
Chris@0 90 $host = (string) substr($value, strrpos($value, '@') + 1);
Chris@0 91
Chris@0 92 // Check for host DNS resource records
Chris@0 93 if ($constraint->checkMX) {
Chris@0 94 if (!$this->checkMX($host)) {
Chris@0 95 $this->context->buildViolation($constraint->message)
Chris@0 96 ->setParameter('{{ value }}', $this->formatValue($value))
Chris@0 97 ->setCode(Email::MX_CHECK_FAILED_ERROR)
Chris@0 98 ->addViolation();
Chris@0 99 }
Chris@0 100
Chris@0 101 return;
Chris@0 102 }
Chris@0 103
Chris@0 104 if ($constraint->checkHost && !$this->checkHost($host)) {
Chris@0 105 $this->context->buildViolation($constraint->message)
Chris@0 106 ->setParameter('{{ value }}', $this->formatValue($value))
Chris@0 107 ->setCode(Email::HOST_CHECK_FAILED_ERROR)
Chris@0 108 ->addViolation();
Chris@0 109 }
Chris@0 110 }
Chris@0 111
Chris@0 112 /**
Chris@0 113 * Check DNS Records for MX type.
Chris@0 114 *
Chris@0 115 * @param string $host Host
Chris@0 116 *
Chris@0 117 * @return bool
Chris@0 118 */
Chris@0 119 private function checkMX($host)
Chris@0 120 {
Chris@0 121 return '' !== $host && checkdnsrr($host, 'MX');
Chris@0 122 }
Chris@0 123
Chris@0 124 /**
Chris@0 125 * Check if one of MX, A or AAAA DNS RR exists.
Chris@0 126 *
Chris@0 127 * @param string $host Host
Chris@0 128 *
Chris@0 129 * @return bool
Chris@0 130 */
Chris@0 131 private function checkHost($host)
Chris@0 132 {
Chris@0 133 return '' !== $host && ($this->checkMX($host) || (checkdnsrr($host, 'A') || checkdnsrr($host, 'AAAA')));
Chris@0 134 }
Chris@0 135 }