<?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\Http\RememberMe;
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\User\UserInterface;
trigger_deprecation('symfony/security-http', '5.4', 'The "%s" class is deprecated, use "%s" instead.', TokenBasedRememberMeServices::class, SignatureRememberMeHandler::class);
/**
* Concrete implementation of the RememberMeServicesInterface providing
* remember-me capabilities without requiring a TokenProvider.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*
* @deprecated since Symfony 5.4, use {@see SignatureRememberMeHandler} instead
*/
class TokenBasedRememberMeServices extends AbstractRememberMeServices
{
/**
* {@inheritdoc}
*/
protected function processAutoLoginCookie(array $cookieParts, Request $request)
{
if (4 !== \count($cookieParts)) {
throw new AuthenticationException('The cookie is invalid.');
}
[$class, $userIdentifier, $expires, $hash] = $cookieParts;
if (false === $userIdentifier = base64_decode($userIdentifier, true)) {
throw new AuthenticationException('$userIdentifier contains a character from outside the base64 alphabet.');
}
try {
$userProvider = $this->getUserProvider($class);
// @deprecated since Symfony 5.3, change to $userProvider->loadUserByIdentifier() in 6.0
if (method_exists($userProvider, 'loadUserByIdentifier')) {
$user = $userProvider->loadUserByIdentifier($userIdentifier);
} else {
trigger_deprecation('symfony/security-core', '5.3', 'Not implementing method "loadUserByIdentifier()" in user provider "%s" is deprecated. This method will replace "loadUserByUsername()" in Symfony 6.0.', get_debug_type($userProvider));
$user = $userProvider->loadUserByUsername($userIdentifier);
}
} catch (\Exception $e) {
if (!$e instanceof AuthenticationException) {
$e = new AuthenticationException($e->getMessage(), $e->getCode(), $e);
}
throw $e;
}
if (!$user instanceof UserInterface) {
throw new \RuntimeException(sprintf('The UserProviderInterface implementation must return an instance of UserInterface, but returned "%s".', get_debug_type($user)));
}
if (true !== hash_equals($this->generateCookieHash($class, $userIdentifier, $expires, $user->getPassword()), $hash)) {
throw new AuthenticationException('The cookie\'s hash is invalid.');
}
if ($expires < time()) {
throw new AuthenticationException('The cookie has expired.');
}
return $user;
}
/**
* {@inheritdoc}
*/
protected function onLoginSuccess(Request $request, Response $response, TokenInterface $token)
{
$user = $token->getUser();
$expires = time() + $this->options['lifetime'];
// @deprecated since Symfony 5.3, change to $user->getUserIdentifier() in 6.0
$value = $this->generateCookieValue(\get_class($user), method_exists($user, 'getUserIdentifier') ? $user->getUserIdentifier() : $user->getUsername(), $expires, $user->getPassword());
$response->headers->setCookie(
new Cookie(
$this->options['name'],
$value,
$expires,
$this->options['path'],
$this->options['domain'],
$this->options['secure'] ?? $request->isSecure(),
$this->options['httponly'],
false,
$this->options['samesite']
)
);
}
/**
* Generates the cookie value.
*
* @param int $expires The Unix timestamp when the cookie expires
* @param string|null $password The encoded password
*
* @return string
*/
protected function generateCookieValue(string $class, string $userIdentifier, int $expires, ?string $password)
{
// $userIdentifier is encoded because it might contain COOKIE_DELIMITER,
// we assume other values don't
return $this->encodeCookie([
$class,
base64_encode($userIdentifier),
$expires,
$this->generateCookieHash($class, $userIdentifier, $expires, $password),
]);
}
/**
* Generates a hash for the cookie to ensure it is not being tampered with.
*
* @param int $expires The Unix timestamp when the cookie expires
* @param string|null $password The encoded password
*
* @return string
*/
protected function generateCookieHash(string $class, string $userIdentifier, int $expires, ?string $password)
{
return hash_hmac('sha256', $class.self::COOKIE_DELIMITER.$userIdentifier.self::COOKIE_DELIMITER.$expires.self::COOKIE_DELIMITER.$password, $this->getSecret());
}
}