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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Authentication\LoginCredentials;
use Exception;
use OC\Authentication\Exceptions\PasswordlessTokenException;
use OC\Authentication\Token\IProvider;
use OCP\Authentication\Exceptions\CredentialsUnavailableException;
use OCP\Authentication\Exceptions\InvalidTokenException;
use OCP\Authentication\LoginCredentials\ICredentials;
use OCP\Authentication\LoginCredentials\IStore;
use OCP\ISession;
use OCP\Security\ICrypto;
use OCP\Session\Exceptions\SessionNotAvailableException;
use OCP\Util;
use Psr\Log\LoggerInterface;
class Store implements IStore {
/** @var ISession */
private $session;
/** @var LoggerInterface */
private $logger;
/** @var IProvider|null */
private $tokenProvider;
public function __construct(
ISession $session,
LoggerInterface $logger,
private readonly ICrypto $crypto,
?IProvider $tokenProvider = null,
) {
$this->session = $session;
$this->logger = $logger;
$this->tokenProvider = $tokenProvider;
Util::connectHook('OC_User', 'post_login', $this, 'authenticate');
}
/**
* Hook listener on post login
*
* @param array $params
*/
public function authenticate(array $params) {
if ($params['password'] !== null) {
$params['password'] = $this->crypto->encrypt((string)$params['password']);
}
$this->session->set('login_credentials', json_encode($params));
}
/**
* Replace the session implementation
*
* @param ISession $session
*/
public function setSession(ISession $session) {
$this->session = $session;
}
/**
* @since 12
*
* @return ICredentials the login credentials of the current user
* @throws CredentialsUnavailableException
*/
public function getLoginCredentials(): ICredentials {
if ($this->tokenProvider === null) {
throw new CredentialsUnavailableException();
}
$trySession = false;
try {
$sessionId = $this->session->getId();
$token = $this->tokenProvider->getToken($sessionId);
$uid = $token->getUID();
$user = $token->getLoginName();
$password = $this->tokenProvider->getPassword($token, $sessionId);
return new Credentials($uid, $user, $password);
} catch (SessionNotAvailableException $ex) {
$this->logger->debug('could not get login credentials because session is unavailable', ['app' => 'core', 'exception' => $ex]);
} catch (InvalidTokenException $ex) {
$this->logger->debug('could not get login credentials because the token is invalid: ' . $ex->getMessage(), ['app' => 'core']);
$trySession = true;
} catch (PasswordlessTokenException $ex) {
$this->logger->debug('could not get login credentials because the token has no password', ['app' => 'core', 'exception' => $ex]);
$trySession = true;
}
if ($trySession && $this->session->exists('login_credentials')) {
/** @var array $creds */
$creds = json_decode($this->session->get('login_credentials'), true);
if ($creds['password'] !== null) {
try {
$creds['password'] = $this->crypto->decrypt($creds['password']);
} catch (Exception $e) {
//decryption failed, continue with old password as it is
}
}
return new Credentials(
$creds['uid'],
$creds['loginName'] ?? $this->session->get('loginname') ?? $creds['uid'], // Pre 20 didn't have a loginName property, hence fall back to the session value and then to the UID
$creds['password']
);
}
// If we reach this line, an exception was thrown.
throw new CredentialsUnavailableException();
}
}
|
