<?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\Security\Core\Encoder;
use Symfony\Component\PasswordHasher\Hasher\CheckPasswordLengthTrait;
trigger_deprecation('symfony/security-core', '5.3', 'The "%s" class is deprecated, use "%s" instead.', BasePasswordEncoder::class, CheckPasswordLengthTrait::class);
/**
* BasePasswordEncoder is the base class for all password encoders.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @deprecated since Symfony 5.3, use CheckPasswordLengthTrait instead
*/
abstract class BasePasswordEncoder implements PasswordEncoderInterface
{
public const MAX_PASSWORD_LENGTH = 4096;
/**
* {@inheritdoc}
*/
public function needsRehash(string $encoded): bool
{
return false;
}
/**
* Demerges a merge password and salt string.
*
* @return array An array where the first element is the password and the second the salt
*/
protected function demergePasswordAndSalt(string $mergedPasswordSalt)
{
if (empty($mergedPasswordSalt)) {
return ['', ''];
}
$password = $mergedPasswordSalt;
$salt = '';
$saltBegins = strrpos($mergedPasswordSalt, '{');
if (false !== $saltBegins && $saltBegins + 1 < \strlen($mergedPasswordSalt)) {
$salt = substr($mergedPasswordSalt, $saltBegins + 1, -1);
$password = substr($mergedPasswordSalt, 0, $saltBegins);
}
return [$password, $salt];
}
/**
* Merges a password and a salt.
*
* @return string
*
* @throws \InvalidArgumentException
*/
protected function mergePasswordAndSalt(string $password, ?string $salt)
{
if (empty($salt)) {
return $password;
}
if (false !== strrpos($salt, '{') || false !== strrpos($salt, '}')) {
throw new \InvalidArgumentException('Cannot use { or } in salt.');
}
return $password.'{'.$salt.'}';
}
/**
* Compares two passwords.
*
* This method implements a constant-time algorithm to compare passwords to
* avoid (remote) timing attacks.
*
* @return bool
*/
protected function comparePasswords(string $password1, string $password2)
{
return hash_equals($password1, $password2);
}
/**
* Checks if the password is too long.
*
* @return bool
*/
protected function isPasswordTooLong(string $password)
{
return \strlen($password) > static::MAX_PASSWORD_LENGTH;
}
}