103 lines
2.6 KiB
PHP
103 lines
2.6 KiB
PHP
<?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;
|
|
|
|
/**
|
|
* Validates whether a value is a valid IP address
|
|
*
|
|
* @author Bernhard Schussek <bernhard.schussek@symfony.com>
|
|
*/
|
|
class IpValidator extends ConstraintValidator
|
|
{
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
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;
|
|
$valid = false;
|
|
|
|
if ($constraint->version == Ip::V4 || $constraint->version == Ip::ALL) {
|
|
$valid = $this->isValidV4($value);
|
|
}
|
|
|
|
if ($constraint->version == Ip::V6 || $constraint->version == Ip::ALL) {
|
|
$valid = $valid || $this->isValidV6($value);
|
|
}
|
|
|
|
if (!$valid) {
|
|
$this->setMessage($constraint->message, array('{{ value }}' => $value));
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Validates that a value is a valid IPv4 address
|
|
*
|
|
* @param string $value
|
|
*/
|
|
protected function isValidV4($value)
|
|
{
|
|
if (!preg_match('/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $value, $matches)) {
|
|
return false;
|
|
}
|
|
|
|
for ($i = 1; $i <= 4; ++$i) {
|
|
if ($matches[$i] > 255) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Validates that a value is a valid IPv6 address
|
|
*
|
|
* @param string $value
|
|
*/
|
|
protected function isValidV6($value)
|
|
{
|
|
if (!preg_match('/^[0-9a-fA-F]{0,4}(:[0-9a-fA-F]{0,4}){1,5}((:[0-9a-fA-F]{0,4}){1,2}|:([\d\.]+))$/', $value, $matches)) {
|
|
return false;
|
|
}
|
|
|
|
// allow V4 addresses mapped to V6
|
|
if (isset($matches[4]) && !$this->isValidV4($matches[4])) {
|
|
return false;
|
|
}
|
|
|
|
// "::" is only allowed once per address
|
|
if (($offset = strpos($value, '::')) !== false) {
|
|
if (strpos($value, '::', $offset + 1) !== false) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
} |