Files
kimai2/src/Ldap/LdapAuthenticationProvider.php

122 lines
4.4 KiB
PHP

<?php
/*
* This file is part of the Kimai time-tracking app.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace App\Ldap;
use App\Configuration\LdapConfiguration;
use App\Entity\User;
use Symfony\Component\Security\Core\Authentication\Provider\UserAuthenticationProvider;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Component\Security\Core\Exception\AuthenticationServiceException;
use Symfony\Component\Security\Core\Exception\BadCredentialsException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
use Symfony\Component\Security\Core\User\UserCheckerInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\UserProviderInterface;
/**
* Inspired by https://github.com/Maks3w/FR3DLdapBundle @ MIT License
*/
class LdapAuthenticationProvider extends UserAuthenticationProvider
{
/**
* @var UserProviderInterface
*/
private $userProvider;
/**
* @var LdapManager
*/
private $ldapManager;
/**
* @var LdapConfiguration
*/
private $config;
public function __construct(UserCheckerInterface $userChecker, $providerKey, UserProviderInterface $userProvider, LdapManager $ldapManager, LdapConfiguration $config, $hideUserNotFoundExceptions = true)
{
parent::__construct($userChecker, $providerKey, $hideUserNotFoundExceptions);
$this->ldapManager = $ldapManager;
$this->config = $config;
$this->userProvider = $userProvider;
}
protected function retrieveUser($username, UsernamePasswordToken $token)
{
$user = $token->getUser();
if ($user instanceof UserInterface) {
return $user;
}
try {
// this will always query the FOSUserBundle first...
// only first-time logins from LDAP user (not yet existing in local user database)
// will actually hit the LdapUserProvider
$user = $this->userProvider->loadUserByUsername($username);
// do not update the user here from LDAP, as we don't know if the user can be authenticated
} catch (UsernameNotFoundException $notFound) {
throw $notFound;
} catch (\Exception $repositoryProblem) {
$e = new AuthenticationServiceException($repositoryProblem->getMessage(), (int) $repositoryProblem->getCode(), $repositoryProblem);
$e->setToken($token);
throw $e;
}
return $user;
}
/**
* The updateUser() call should theoretically happen in retrieveUser() but that would require an additional
* $this->ldapManager->bind($user, $token->getCredentials())
* to check if the user is still valid.
*
* Symfony calls retrieveUser() before checkAuthentication()
* and we should not used ldap->search() before ldap->bind()
*
* @param UserInterface $user
* @param UsernamePasswordToken $token
* @throws LdapDriverException
*/
protected function checkAuthentication(UserInterface $user, UsernamePasswordToken $token)
{
$currentUser = $token->getUser();
$presentedPassword = $token->getCredentials();
if ($currentUser instanceof UserInterface) {
if ('' === $presentedPassword) {
throw new BadCredentialsException(
'The password in the token is empty. Check `erase_credentials` in your `security.yaml`'
);
}
if (!$this->ldapManager->bind($currentUser, $presentedPassword)) {
throw new BadCredentialsException('The credentials were changed from another session.');
}
} else {
if ('' === $presentedPassword) {
throw new BadCredentialsException('The presented password cannot be empty.');
}
if (!$this->ldapManager->bind($user, $presentedPassword)) {
throw new BadCredentialsException('The presented password is invalid.');
}
}
if ($user instanceof User && null !== $user->getPreferenceValue('ldap.dn')) {
try {
$this->ldapManager->updateUser($user);
} catch (LdapDriverException $ex) {
throw new BadCredentialsException('Fetching user data/roles failed, probably DN is expired.');
}
}
}
}