65 lines
1.8 KiB
PHP
65 lines
1.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\PasswordHasher\Hasher;
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use Symfony\Component\PasswordHasher\PasswordHasherInterface;
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/**
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* Hashes passwords using the best available hasher.
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* Verifies them using a chain of hashers.
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*
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* /!\ Don't put a PlaintextPasswordHasher in the list as that'd mean a leaked hash
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* could be used to authenticate successfully without knowing the cleartext password.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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final class MigratingPasswordHasher implements PasswordHasherInterface
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{
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private $bestHasher;
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private $extraHashers;
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public function __construct(PasswordHasherInterface $bestHasher, PasswordHasherInterface ...$extraHashers)
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{
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$this->bestHasher = $bestHasher;
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$this->extraHashers = $extraHashers;
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}
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public function hash(string $plainPassword, string $salt = null): string
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{
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return $this->bestHasher->hash($plainPassword, $salt);
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}
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public function verify(string $hashedPassword, string $plainPassword, string $salt = null): bool
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{
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if ($this->bestHasher->verify($hashedPassword, $plainPassword, $salt)) {
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return true;
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}
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if (!$this->bestHasher->needsRehash($hashedPassword)) {
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return false;
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}
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foreach ($this->extraHashers as $hasher) {
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if ($hasher->verify($hashedPassword, $plainPassword, $salt)) {
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return true;
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}
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}
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return false;
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}
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public function needsRehash(string $hashedPassword): bool
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{
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return $this->bestHasher->needsRehash($hashedPassword);
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}
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}
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