mirror of
https://github.com/nextcloud/server.git
synced 2026-10-03 16:58:44 +02:00
Jonas
0bbfe2e4d9
loginWithCookie() regenerated the session id before validating the remember-me cookie. With stale cookies (e.g. after the session token was invalidated by an OIDC backchannel logout) every request rotated the session and failed. Parallel requests then forked the same session, and the browser could end up with a copy lacking data stored during the login, such as user_oidc's OIDC state or the login flow v2 state token. Regenerate the session id only once the cookie has been validated. Signed-off-by: Jonas <jonas@freesources.org> Assisted-by: ClaudeCode:claude-opus-5.5
1117 lines
32 KiB
PHP
1117 lines
32 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OC\User;
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use OC;
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use OC\Authentication\Exceptions\PasswordlessTokenException;
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use OC\Authentication\Exceptions\PasswordLoginForbiddenException;
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use OC\Authentication\Token\IProvider;
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use OC\Authentication\Token\IToken;
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use OC\Authentication\Token\PublicKeyToken;
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use OC\Authentication\TwoFactorAuth\Manager as TwoFactorAuthManager;
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use OC\Hooks\Emitter;
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use OC\Hooks\PublicEmitter;
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use OC\Security\CSRF\CsrfTokenManager;
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use OC_User;
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use OC_Util;
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use OCA\DAV\Connector\Sabre\Auth;
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use OCP\AppFramework\Db\TTransactional;
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use OCP\AppFramework\Utility\ITimeFactory;
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use OCP\Authentication\Exceptions\ExpiredTokenException;
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use OCP\Authentication\Exceptions\InvalidTokenException;
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use OCP\EventDispatcher\GenericEvent;
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use OCP\EventDispatcher\IEventDispatcher;
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use OCP\Files\NotPermittedException;
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use OCP\IConfig;
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use OCP\IDBConnection;
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use OCP\IRequest;
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use OCP\ISession;
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use OCP\IUser;
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use OCP\IUserSession;
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use OCP\Lockdown\ILockdownManager;
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use OCP\Security\Bruteforce\IThrottler;
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use OCP\Security\ISecureRandom;
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use OCP\Server;
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use OCP\Session\Exceptions\SessionNotAvailableException;
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use OCP\User\Events\PostLoginEvent;
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use OCP\User\Events\UserFirstTimeLoggedInEvent;
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use OCP\Util;
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use Psr\Log\LoggerInterface;
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/**
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* Class Session
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*
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* Hooks available in scope \OC\User:
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* - preSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
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* - postSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
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* - preDelete(\OC\User\User $user)
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* - postDelete(\OC\User\User $user)
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* - preCreateUser(string $uid, string $password)
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* - postCreateUser(\OC\User\User $user)
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* - assignedUserId(string $uid)
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* - preUnassignedUserId(string $uid)
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* - postUnassignedUserId(string $uid)
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* - preLogin(string $user, string $password)
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* - postLogin(\OC\User\User $user, string $loginName, string $password, boolean $isTokenLogin)
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* - preRememberedLogin(string $uid)
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* - postRememberedLogin(\OC\User\User $user)
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* - logout()
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* - postLogout()
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*
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* @package OC\User
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*/
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class Session implements IUserSession, Emitter {
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use TTransactional;
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/** @var User $activeUser */
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protected $activeUser;
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public function __construct(
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private Manager $manager,
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private ISession $session,
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private ITimeFactory $timeFactory,
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private ?IProvider $tokenProvider,
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private IConfig $config,
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private ISecureRandom $random,
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private ILockdownManager $lockdownManager,
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private LoggerInterface $logger,
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private IEventDispatcher $dispatcher,
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) {
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}
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/**
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* @param IProvider $provider
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*/
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public function setTokenProvider(IProvider $provider) {
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$this->tokenProvider = $provider;
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}
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/**
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* @param string $scope
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* @param string $method
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* @param callable $callback
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*/
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public function listen($scope, $method, callable $callback) {
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$this->manager->listen($scope, $method, $callback);
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}
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/**
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* @param string $scope optional
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* @param string $method optional
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* @param callable $callback optional
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*/
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public function removeListener($scope = null, $method = null, ?callable $callback = null) {
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$this->manager->removeListener($scope, $method, $callback);
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}
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/**
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* get the manager object
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*
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* @return Manager|PublicEmitter
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*/
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public function getManager() {
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return $this->manager;
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}
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/**
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* get the session object
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*
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* @return ISession
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*/
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public function getSession() {
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return $this->session;
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}
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/**
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* set the session object
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*
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* @param ISession $session
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*/
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public function setSession(ISession $session) {
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if ($this->session instanceof ISession) {
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$this->session->close();
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}
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$this->session = $session;
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$this->activeUser = null;
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}
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/**
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* set the currently active user
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*
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* @param IUser|null $user
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*/
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public function setUser($user) {
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if (is_null($user)) {
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$this->session->remove('user_id');
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} else {
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$this->session->set('user_id', $user->getUID());
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}
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$this->activeUser = $user;
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}
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/**
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* Temporarily set the currently active user without persisting in the session
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*
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* @param IUser|null $user
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*/
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public function setVolatileActiveUser(?IUser $user): void {
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$this->activeUser = $user;
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}
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/**
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* get the current active user
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*
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* @return IUser|null Current user, otherwise null
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*/
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public function getUser() {
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// FIXME: This is a quick'n dirty work-around for the incognito mode as
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// described at https://github.com/owncloud/core/pull/12912#issuecomment-67391155
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if (OC_User::isIncognitoMode()) {
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return null;
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}
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if (is_null($this->activeUser)) {
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$uid = $this->session->get('user_id');
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if (is_null($uid)) {
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return null;
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}
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$this->activeUser = $this->manager->get($uid);
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if (is_null($this->activeUser)) {
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return null;
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}
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$this->validateSession();
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}
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return $this->activeUser;
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}
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/**
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* Validate whether the current session is valid
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*
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* - For token-authenticated clients, the token validity is checked
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* - For browsers, the session token validity is checked
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*/
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protected function validateSession() {
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$token = null;
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$appPassword = $this->session->get('app_password');
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if (is_null($appPassword)) {
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try {
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$token = $this->session->getId();
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} catch (SessionNotAvailableException $ex) {
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return;
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}
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} else {
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$token = $appPassword;
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}
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if (!$this->validateToken($token)) {
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// Session was invalidated
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$this->logout();
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}
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}
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/**
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* Checks whether the user is logged in
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*
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* @return bool if logged in
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*/
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public function isLoggedIn() {
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$user = $this->getUser();
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if (is_null($user)) {
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return false;
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}
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return $user->isEnabled();
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}
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/**
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* set the login name
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*
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* @param string|null $loginName for the logged in user
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*/
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public function setLoginName($loginName) {
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if (is_null($loginName)) {
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$this->session->remove('loginname');
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} else {
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$this->session->set('loginname', $loginName);
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}
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}
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/**
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* Get the login name of the current user
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*
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* @return ?string
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*/
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public function getLoginName() {
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if ($this->activeUser) {
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return $this->session->get('loginname');
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}
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$uid = $this->session->get('user_id');
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if ($uid) {
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$this->activeUser = $this->manager->get($uid);
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return $this->session->get('loginname');
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}
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return null;
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}
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/**
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* @return null|string
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*/
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public function getImpersonatingUserID(): ?string {
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return $this->session->get('oldUserId');
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}
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public function setImpersonatingUserID(bool $useCurrentUser = true): void {
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if ($useCurrentUser === false) {
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$this->session->remove('oldUserId');
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return;
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}
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$currentUser = $this->getUser();
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if ($currentUser === null) {
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throw new \OC\User\NoUserException();
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}
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$this->session->set('oldUserId', $currentUser->getUID());
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}
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/**
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* set the token id
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*
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* @param int|null $token that was used to log in
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*/
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protected function setToken($token) {
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if ($token === null) {
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$this->session->remove('token-id');
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} else {
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$this->session->set('token-id', $token);
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}
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}
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/**
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* try to log in with the provided credentials
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*
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* @param string $uid
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* @param string $password
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* @return boolean|null
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* @throws LoginException
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*/
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public function login($uid, $password) {
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$this->session->regenerateId();
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if ($this->validateToken($password, $uid)) {
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return $this->loginWithToken($password);
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}
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return $this->loginWithPassword($uid, $password);
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}
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/**
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* @param IUser $user
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* @param array $loginDetails
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* @param bool $regenerateSessionId
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* @return true returns true if login successful or an exception otherwise
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* @throws LoginException
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*/
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public function completeLogin(IUser $user, array $loginDetails, $regenerateSessionId = true) {
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if (!$user->isEnabled()) {
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// disabled users can not log in
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// injecting l10n does not work - there is a circular dependency between session and \OCP\L10N\IFactory
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$message = \OCP\Util::getL10N('lib')->t('Account disabled');
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throw new DisabledUserException($message);
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}
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if ($regenerateSessionId) {
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$this->session->regenerateId();
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$this->session->remove(Auth::DAV_AUTHENTICATED);
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}
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$this->setUser($user);
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$this->setLoginName($loginDetails['loginName']);
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$isToken = isset($loginDetails['token']) && $loginDetails['token'] instanceof IToken;
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if ($isToken) {
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$this->setToken($loginDetails['token']->getId());
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$this->lockdownManager->setToken($loginDetails['token']);
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$user->updateLastLoginTimestamp();
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$firstTimeLogin = false;
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} else {
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$this->setToken(null);
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$firstTimeLogin = $user->updateLastLoginTimestamp();
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}
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$this->dispatcher->dispatchTyped(new PostLoginEvent(
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$user,
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$loginDetails['loginName'],
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$loginDetails['password'],
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$isToken
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));
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$this->manager->emit('\OC\User', 'postLogin', [
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$user,
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$loginDetails['loginName'],
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$loginDetails['password'],
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$isToken,
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]);
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if ($this->isLoggedIn()) {
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$this->prepareUserLogin($firstTimeLogin, $regenerateSessionId);
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return true;
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}
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$message = \OCP\Util::getL10N('lib')->t('Login canceled by app');
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throw new LoginException($message);
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}
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/**
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* Tries to log in a client
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*
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* Checks token auth enforced
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* Checks 2FA enabled
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*
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* @param string $user
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* @param string $password
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* @param IRequest $request
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* @param IThrottler $throttler
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* @throws LoginException
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* @throws PasswordLoginForbiddenException
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* @return boolean
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*/
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public function logClientIn($user,
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$password,
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IRequest $request,
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IThrottler $throttler) {
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$remoteAddress = $request->getRemoteAddress();
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$currentDelay = $throttler->sleepDelayOrThrowOnMax($remoteAddress, 'login');
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if ($this->manager instanceof PublicEmitter) {
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$this->manager->emit('\OC\User', 'preLogin', [$user, $password]);
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}
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try {
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$dbToken = $this->getTokenFromPassword($password);
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$isTokenPassword = $dbToken !== null;
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if (($dbToken instanceof PublicKeyToken)
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&& !in_array($dbToken->getType(), [IToken::PERMANENT_TOKEN,IToken::ONETIME_TOKEN])
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) {
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// Refuse session tokens here, only app tokens and onetime tokens are handled
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return false;
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}
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} catch (ExpiredTokenException) {
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// Just return on an expired token no need to check further or record a failed login
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return false;
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}
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if (!$isTokenPassword && ($this->isTokenAuthEnforced() || $this->isTwoFactorEnforced($user))) {
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$this->handleLoginFailed($throttler, $currentDelay, $remoteAddress, $user, $password);
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throw new PasswordLoginForbiddenException();
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}
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// Try to login with this username and password
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if (!$this->login($user, $password)) {
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// Failed, maybe the user used their email address
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if (!filter_var($user, FILTER_VALIDATE_EMAIL)) {
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$this->handleLoginFailed($throttler, $currentDelay, $remoteAddress, $user, $password);
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return false;
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}
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if ($isTokenPassword) {
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$dbToken = $this->tokenProvider->getToken($password);
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$userFromToken = $this->manager->get($dbToken->getUID());
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$isValidEmailLogin = $userFromToken->getEMailAddress() === $user
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&& $this->validateTokenLoginName($userFromToken->getEMailAddress(), $dbToken);
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} else {
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$users = $this->manager->getByEmail($user);
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$isValidEmailLogin = (\count($users) === 1 && $this->login($users[0]->getUID(), $password));
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}
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if (!$isValidEmailLogin) {
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$this->handleLoginFailed($throttler, $currentDelay, $remoteAddress, $user, $password);
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return false;
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}
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}
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if ($isTokenPassword) {
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if ($dbToken instanceof PublicKeyToken && $dbToken->getType() === IToken::ONETIME_TOKEN) {
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$this->tokenProvider->invalidateTokenById($dbToken->getUID(), $dbToken->getId());
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if ($request->getPathInfo() !== '/core/getapppassword-onetime') {
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return false;
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}
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$this->session->set('one_time_token', $password);
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} else {
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$this->session->set('app_password', $password);
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}
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} else {
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$this->session->set('last-password-confirm', $this->timeFactory->getTime());
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if ($this->supportsCookies($request)) {
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// Password login, but cookies supported -> create (browser) session token
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$this->createSessionToken($request, $this->getUser()->getUID(), $user, $password);
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}
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}
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return true;
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}
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private function handleLoginFailed(IThrottler $throttler, int $currentDelay, string $remoteAddress, string $user, ?string $password) {
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$this->logger->warning("Login failed: '" . $user . "' (Remote IP: '" . $remoteAddress . "')", ['app' => 'core']);
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$throttler->registerAttempt('login', $remoteAddress, ['user' => $user]);
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$this->dispatcher->dispatchTyped(new OC\Authentication\Events\LoginFailed($user, $password));
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if ($currentDelay === 0) {
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$throttler->sleepDelayOrThrowOnMax($remoteAddress, 'login');
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}
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}
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protected function supportsCookies(IRequest $request) {
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if (!is_null($request->getCookie('cookie_test'))) {
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return true;
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}
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setcookie('cookie_test', 'test', $this->timeFactory->getTime() + 3600);
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return false;
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}
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private function isTokenAuthEnforced(): bool {
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return $this->config->getSystemValueBool('token_auth_enforced', false);
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}
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protected function isTwoFactorEnforced($username) {
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Util::emitHook(
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'\OCA\Files_Sharing\API\Server2Server',
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'preLoginNameUsedAsUserName',
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['uid' => &$username]
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);
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$user = $this->manager->get($username);
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if (is_null($user)) {
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$users = $this->manager->getByEmail($username);
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if (empty($users)) {
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return false;
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}
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if (count($users) !== 1) {
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return true;
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}
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$user = $users[0];
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}
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// DI not possible due to cyclic dependencies :'-/
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return OC::$server->get(TwoFactorAuthManager::class)->isTwoFactorAuthenticated($user);
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}
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|
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/**
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* Check if the given 'password' is actually a device token
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*
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* @throws ExpiredTokenException
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*/
|
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private function getTokenFromPassword(string $password): ?\OCP\Authentication\Token\IToken {
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try {
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return $this->tokenProvider->getToken($password);
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} catch (ExpiredTokenException $e) {
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throw $e;
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} catch (InvalidTokenException $ex) {
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$this->logger->debug('Token is not valid: ' . $ex->getMessage(), [
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'exception' => $ex,
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]);
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return null;
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}
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}
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|
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protected function prepareUserLogin($firstTimeLogin, $refreshCsrfToken = true) {
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if ($refreshCsrfToken) {
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// TODO: mock/inject/use non-static
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// Refresh the token
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\OC::$server->get(CsrfTokenManager::class)->refreshToken();
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}
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|
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if ($firstTimeLogin) {
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//we need to pass the user name, which may differ from login name
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$user = $this->getUser()->getUID();
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OC_Util::setupFS($user);
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|
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// TODO: lock necessary?
|
|
//trigger creation of user home and /files folder
|
|
$userFolder = \OC::$server->getUserFolder($user);
|
|
|
|
try {
|
|
// copy skeleton
|
|
\OC_Util::copySkeleton($user, $userFolder);
|
|
} catch (NotPermittedException $ex) {
|
|
// read only uses
|
|
}
|
|
|
|
// trigger any other initialization
|
|
\OC::$server->get(IEventDispatcher::class)->dispatch(IUser::class . '::firstLogin', new GenericEvent($this->getUser()));
|
|
\OC::$server->get(IEventDispatcher::class)->dispatchTyped(new UserFirstTimeLoggedInEvent($this->getUser()));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tries to login the user with HTTP Basic Authentication
|
|
*
|
|
* @todo do not allow basic auth if the user is 2FA enforced
|
|
* @param IRequest $request
|
|
* @param IThrottler $throttler
|
|
* @return boolean if the login was successful
|
|
*/
|
|
public function tryBasicAuthLogin(IRequest $request,
|
|
IThrottler $throttler) {
|
|
if (!empty($request->server['PHP_AUTH_USER']) && !empty($request->server['PHP_AUTH_PW'])) {
|
|
try {
|
|
if ($this->logClientIn($request->server['PHP_AUTH_USER'], $request->server['PHP_AUTH_PW'], $request, $throttler)) {
|
|
/**
|
|
* Add DAV authenticated. This should in an ideal world not be
|
|
* necessary but the iOS App reads cookies from anywhere instead
|
|
* only the DAV endpoint.
|
|
* This makes sure that the cookies will be valid for the whole scope
|
|
* @see https://github.com/owncloud/core/issues/22893
|
|
*/
|
|
$this->session->set(
|
|
Auth::DAV_AUTHENTICATED, $this->getUser()->getUID()
|
|
);
|
|
|
|
return true;
|
|
}
|
|
// If credentials were provided, they need to be valid, otherwise we do boom
|
|
throw new LoginException();
|
|
} catch (PasswordLoginForbiddenException $ex) {
|
|
// If credentials were provided, they need to be valid, otherwise we do boom
|
|
throw new LoginException(previous: $ex);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Log an user in via login name and password
|
|
*
|
|
* @param string $uid
|
|
* @param string $password
|
|
* @return boolean
|
|
* @throws LoginException if an app canceld the login process or the user is not enabled
|
|
*/
|
|
private function loginWithPassword($uid, $password) {
|
|
$user = $this->manager->checkPasswordNoLogging($uid, $password);
|
|
if ($user === false) {
|
|
// Password check failed
|
|
return false;
|
|
}
|
|
|
|
return $this->completeLogin($user, ['loginName' => $uid, 'password' => $password], false);
|
|
}
|
|
|
|
/**
|
|
* Log an user in with a given token (id)
|
|
*
|
|
* @param string $token
|
|
* @return boolean
|
|
* @throws LoginException if an app canceled the login process or the user is not enabled
|
|
*/
|
|
private function loginWithToken($token) {
|
|
try {
|
|
$dbToken = $this->tokenProvider->getToken($token);
|
|
} catch (InvalidTokenException $ex) {
|
|
return false;
|
|
}
|
|
$uid = $dbToken->getUID();
|
|
|
|
// When logging in with token, the password must be decrypted first before passing to login hook
|
|
$password = '';
|
|
try {
|
|
$password = $this->tokenProvider->getPassword($dbToken, $token);
|
|
} catch (PasswordlessTokenException $ex) {
|
|
// Ignore and use empty string instead
|
|
}
|
|
|
|
$this->manager->emit('\OC\User', 'preLogin', [$dbToken->getLoginName(), $password]);
|
|
|
|
$user = $this->manager->get($uid);
|
|
if (is_null($user)) {
|
|
// user does not exist
|
|
return false;
|
|
}
|
|
|
|
return $this->completeLogin(
|
|
$user,
|
|
[
|
|
'loginName' => $dbToken->getLoginName(),
|
|
'password' => $password,
|
|
'token' => $dbToken
|
|
],
|
|
false);
|
|
}
|
|
|
|
/**
|
|
* Create a new session token for the given user credentials
|
|
*/
|
|
public function createSessionToken(
|
|
IRequest $request,
|
|
string $uid,
|
|
string $loginName,
|
|
?string $password = null,
|
|
int $remember = IToken::DO_NOT_REMEMBER,
|
|
?int $expires = null,
|
|
): bool {
|
|
if (is_null($this->manager->get($uid))) {
|
|
// User does not exist
|
|
return false;
|
|
}
|
|
$name = isset($request->server['HTTP_USER_AGENT']) ? mb_convert_encoding($request->server['HTTP_USER_AGENT'], 'UTF-8', 'ISO-8859-1') : 'unknown browser';
|
|
try {
|
|
$sessionId = $this->session->getId();
|
|
$pwd = $this->getPassword($password);
|
|
// Make sure the current sessionId has no leftover tokens
|
|
$this->atomic(function () use ($sessionId, $uid, $loginName, $pwd, $name, $remember, $expires): void {
|
|
$this->tokenProvider->invalidateToken($sessionId);
|
|
$this->tokenProvider->generateToken($sessionId, $uid, $loginName, $pwd, $name, IToken::TEMPORARY_TOKEN, $remember, expires:$expires);
|
|
}, Server::get(IDBConnection::class));
|
|
return true;
|
|
} catch (SessionNotAvailableException $ex) {
|
|
// This can happen with OCC, where a memory session is used
|
|
// if a memory session is used, we shouldn't create a session token anyway
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if the given password is a token.
|
|
* If yes, the password is extracted from the token.
|
|
* If no, the same password is returned.
|
|
*
|
|
* @param string $password either the login password or a device token
|
|
* @return string|null the password or null if none was set in the token
|
|
*/
|
|
private function getPassword($password) {
|
|
if (is_null($password)) {
|
|
// This is surely no token ;-)
|
|
return null;
|
|
}
|
|
try {
|
|
$token = $this->tokenProvider->getToken($password);
|
|
try {
|
|
return $this->tokenProvider->getPassword($token, $password);
|
|
} catch (PasswordlessTokenException $ex) {
|
|
return null;
|
|
}
|
|
} catch (InvalidTokenException $ex) {
|
|
return $password;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param IToken $dbToken
|
|
* @param string $token
|
|
* @return boolean
|
|
*/
|
|
private function checkTokenCredentials(IToken $dbToken, $token) {
|
|
// Check whether login credentials are still valid and the user was not disabled
|
|
// This check is performed each 5 minutes
|
|
$lastCheck = $dbToken->getLastCheck() ? : 0;
|
|
$now = $this->timeFactory->getTime();
|
|
if ($lastCheck > ($now - 60 * 5)) {
|
|
// Checked performed recently, nothing to do now
|
|
return true;
|
|
}
|
|
|
|
try {
|
|
$pwd = $this->tokenProvider->getPassword($dbToken, $token);
|
|
} catch (InvalidTokenException $ex) {
|
|
// An invalid token password was used -> log user out
|
|
return false;
|
|
} catch (PasswordlessTokenException $ex) {
|
|
// Token has no password
|
|
|
|
if (!is_null($this->activeUser) && !$this->activeUser->isEnabled()) {
|
|
$this->tokenProvider->invalidateToken($token);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Invalidate token if the user is no longer active
|
|
if (!is_null($this->activeUser) && !$this->activeUser->isEnabled()) {
|
|
$this->tokenProvider->invalidateToken($token);
|
|
return false;
|
|
}
|
|
|
|
// If the token password is no longer valid mark it as such
|
|
if ($this->manager->checkPassword($dbToken->getLoginName(), $pwd) === false) {
|
|
$this->tokenProvider->markPasswordInvalid($dbToken, $token);
|
|
// User is logged out
|
|
return false;
|
|
}
|
|
|
|
$dbToken->setLastCheck($now);
|
|
if ($dbToken instanceof PublicKeyToken) {
|
|
$dbToken->setLastActivity($now);
|
|
}
|
|
$this->tokenProvider->updateToken($dbToken);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if the given token exists and performs password/user-enabled checks
|
|
*
|
|
* Invalidates the token if checks fail
|
|
*
|
|
* @param string $token
|
|
* @param string $user login name
|
|
* @return boolean
|
|
*/
|
|
private function validateToken($token, $user = null) {
|
|
try {
|
|
$dbToken = $this->tokenProvider->getToken($token);
|
|
} catch (InvalidTokenException $ex) {
|
|
$this->logger->debug('Session token is invalid because it does not exist', [
|
|
'app' => 'core',
|
|
'user' => $user,
|
|
'exception' => $ex,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
if (!is_null($user) && !$this->validateTokenLoginName($user, $dbToken)) {
|
|
return false;
|
|
}
|
|
|
|
if (!$this->checkTokenCredentials($dbToken, $token)) {
|
|
$this->logger->warning('Session token credentials are invalid', [
|
|
'app' => 'core',
|
|
'user' => $user,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
// Update token scope
|
|
$this->lockdownManager->setToken($dbToken);
|
|
|
|
$this->tokenProvider->updateTokenActivity($dbToken);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if login names match
|
|
*/
|
|
private function validateTokenLoginName(?string $loginName, IToken $token): bool {
|
|
if (mb_strtolower($token->getLoginName()) !== mb_strtolower($loginName ?? '')) {
|
|
// TODO: this makes it impossible to use different login names on browser and client
|
|
// e.g. login by e-mail 'user@example.com' on browser for generating the token will not
|
|
// allow to use the client token with the login name 'user'.
|
|
$this->logger->error('App token login name does not match', [
|
|
'tokenLoginName' => $token->getLoginName(),
|
|
'sessionLoginName' => $loginName,
|
|
'app' => 'core',
|
|
'user' => $token->getUID(),
|
|
]);
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Tries to login the user with auth token header
|
|
*
|
|
* @param IRequest $request
|
|
* @todo check remember me cookie
|
|
* @return boolean
|
|
*/
|
|
public function tryTokenLogin(IRequest $request) {
|
|
$authHeader = $request->getHeader('Authorization');
|
|
$tokenFromCookie = false;
|
|
if (str_starts_with($authHeader, 'Bearer ')) {
|
|
$token = substr($authHeader, 7);
|
|
} elseif ($request->getCookie($this->config->getSystemValueString('instanceid')) !== null) {
|
|
// No auth header, let's try session id, but only if this is an existing
|
|
// session and the request has a session cookie
|
|
try {
|
|
$token = $this->session->getId();
|
|
$tokenFromCookie = true;
|
|
} catch (SessionNotAvailableException $ex) {
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
try {
|
|
$dbToken = $this->tokenProvider->getToken($token);
|
|
} catch (InvalidTokenException $e) {
|
|
// Can't really happen but better safe than sorry
|
|
return false;
|
|
}
|
|
|
|
if ($dbToken instanceof PublicKeyToken && $dbToken->getType() === IToken::TEMPORARY_TOKEN && !$tokenFromCookie) {
|
|
// Session token but from Bearer header, not allowed
|
|
return false;
|
|
}
|
|
|
|
if (!$this->loginWithToken($token)) {
|
|
return false;
|
|
}
|
|
if (!$this->validateToken($token)) {
|
|
return false;
|
|
}
|
|
|
|
// Set the session variable so we know this is an app password
|
|
if ($dbToken instanceof PublicKeyToken && $dbToken->getType() === IToken::PERMANENT_TOKEN) {
|
|
$this->session->set('app_password', $token);
|
|
} elseif ($dbToken instanceof PublicKeyToken && $dbToken->getType() === IToken::ONETIME_TOKEN) {
|
|
$this->tokenProvider->invalidateTokenById($dbToken->getUID(), $dbToken->getId());
|
|
if ($request->getPathInfo() !== '/core/getapppassword-onetime') {
|
|
return false;
|
|
}
|
|
|
|
$this->session->set('one_time_token', $token);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* perform login using the magic cookie (remember login)
|
|
*
|
|
* @param string $uid the username
|
|
* @param string $currentToken
|
|
* @param string $oldSessionId
|
|
* @return bool
|
|
*/
|
|
public function loginWithCookie($uid, $currentToken, $oldSessionId) {
|
|
$this->manager->emit('\OC\User', 'preRememberedLogin', [$uid]);
|
|
$user = $this->manager->get($uid);
|
|
if (is_null($user)) {
|
|
// user does not exist
|
|
return false;
|
|
}
|
|
|
|
// get stored tokens
|
|
$tokens = $this->config->getUserKeys($uid, 'login_token');
|
|
// test cookies token against stored tokens
|
|
if (!in_array($currentToken, $tokens, true)) {
|
|
$this->logger->info('Tried to log in but could not verify token', [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
try {
|
|
$oldToken = $this->tokenProvider->getToken($oldSessionId);
|
|
} catch (InvalidTokenException $ex) {
|
|
$this->logger->error('Could not find the session token to renew', [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
'exception' => $ex,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
if ($oldToken->getUID() !== $user->getUID()) {
|
|
$this->logger->warning('Tried to renew a session token belonging to a different user', [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
// Only rotate the session once the cookie is known to be valid; failed attempts must not
|
|
// fork the session, as concurrent requests would otherwise lose its data.
|
|
$this->session->regenerateId();
|
|
|
|
// replace successfully used token with a new one
|
|
$this->config->deleteUserValue($uid, 'login_token', $currentToken);
|
|
$newToken = $this->random->generate(32);
|
|
$this->config->setUserValue($uid, 'login_token', $newToken, (string)$this->timeFactory->getTime());
|
|
$this->logger->debug('Remember-me token replaced', [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
]);
|
|
|
|
try {
|
|
$sessionId = $this->session->getId();
|
|
$token = $this->tokenProvider->renewSessionToken($oldSessionId, $sessionId);
|
|
$this->logger->debug('Session token replaced', [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
]);
|
|
} catch (SessionNotAvailableException $ex) {
|
|
$this->logger->critical('Could not renew session token for {uid} because the session is unavailable', [
|
|
'app' => 'core',
|
|
'uid' => $uid,
|
|
'user' => $uid,
|
|
]);
|
|
return false;
|
|
} catch (InvalidTokenException $ex) {
|
|
$this->logger->error('Renewing session token failed: ' . $ex->getMessage(), [
|
|
'app' => 'core',
|
|
'user' => $uid,
|
|
'exception' => $ex,
|
|
]);
|
|
return false;
|
|
}
|
|
|
|
$this->setMagicInCookie($user->getUID(), $newToken);
|
|
|
|
//login
|
|
$this->setUser($user);
|
|
$this->setLoginName($token->getLoginName());
|
|
$this->setToken($token->getId());
|
|
$this->lockdownManager->setToken($token);
|
|
$user->updateLastLoginTimestamp();
|
|
$password = null;
|
|
try {
|
|
$password = $this->tokenProvider->getPassword($token, $sessionId);
|
|
} catch (PasswordlessTokenException $ex) {
|
|
// Ignore
|
|
}
|
|
$this->manager->emit('\OC\User', 'postRememberedLogin', [$user, $password]);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param IUser $user
|
|
*/
|
|
public function createRememberMeToken(IUser $user) {
|
|
$token = $this->random->generate(32);
|
|
$this->config->setUserValue($user->getUID(), 'login_token', $token, (string)$this->timeFactory->getTime());
|
|
$this->setMagicInCookie($user->getUID(), $token);
|
|
}
|
|
|
|
/**
|
|
* logout the user from the session
|
|
*/
|
|
public function logout() {
|
|
$user = $this->getUser();
|
|
$this->manager->emit('\OC\User', 'logout', [$user]);
|
|
if ($user !== null) {
|
|
try {
|
|
$token = $this->session->getId();
|
|
$this->tokenProvider->invalidateToken($token);
|
|
$this->logger->debug('Session token invalidated before logout', [
|
|
'user' => $user->getUID(),
|
|
]);
|
|
} catch (SessionNotAvailableException $ex) {
|
|
}
|
|
}
|
|
$this->logger->debug('Logging out', [
|
|
'user' => $user === null ? null : $user->getUID(),
|
|
]);
|
|
$this->setUser(null);
|
|
$this->setLoginName(null);
|
|
$this->setToken(null);
|
|
$this->unsetMagicInCookie();
|
|
$this->session->clear();
|
|
$this->manager->emit('\OC\User', 'postLogout', [$user]);
|
|
}
|
|
|
|
/**
|
|
* Set cookie value to use in next page load
|
|
*
|
|
* @param string $username username to be set
|
|
* @param string $token
|
|
*/
|
|
public function setMagicInCookie($username, $token) {
|
|
$secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
|
|
$webRoot = \OC::$WEBROOT;
|
|
if ($webRoot === '') {
|
|
$webRoot = '/';
|
|
}
|
|
$domain = $this->config->getSystemValueString('cookie_domain');
|
|
|
|
$maxAge = $this->config->getSystemValueInt('remember_login_cookie_lifetime', 60 * 60 * 24 * 15);
|
|
\OC\Http\CookieHelper::setCookie(
|
|
'nc_username',
|
|
$username,
|
|
$maxAge,
|
|
$webRoot,
|
|
$domain,
|
|
$secureCookie,
|
|
true,
|
|
\OC\Http\CookieHelper::SAMESITE_LAX
|
|
);
|
|
\OC\Http\CookieHelper::setCookie(
|
|
'nc_token',
|
|
$token,
|
|
$maxAge,
|
|
$webRoot,
|
|
$domain,
|
|
$secureCookie,
|
|
true,
|
|
\OC\Http\CookieHelper::SAMESITE_LAX
|
|
);
|
|
try {
|
|
\OC\Http\CookieHelper::setCookie(
|
|
'nc_session_id',
|
|
$this->session->getId(),
|
|
$maxAge,
|
|
$webRoot,
|
|
$domain,
|
|
$secureCookie,
|
|
true,
|
|
\OC\Http\CookieHelper::SAMESITE_LAX
|
|
);
|
|
} catch (SessionNotAvailableException $ex) {
|
|
// ignore
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Point the remember-me cookie at the regenerated session id, so cookie
|
|
* login can still find the token that was renewed along with it.
|
|
*/
|
|
public function renewMagicSessionId(string $oldSessionId): void {
|
|
$request = Server::get(IRequest::class);
|
|
$username = $request->getCookie('nc_username');
|
|
$token = $request->getCookie('nc_token');
|
|
$sessionId = $request->getCookie('nc_session_id');
|
|
if ($username === null || $token === null || $sessionId !== $oldSessionId) {
|
|
return;
|
|
}
|
|
$this->setMagicInCookie($username, $token);
|
|
}
|
|
|
|
/**
|
|
* Remove cookie for "remember username"
|
|
*/
|
|
public function unsetMagicInCookie() {
|
|
//TODO: DI for cookies and IRequest
|
|
$secureCookie = OC::$server->getRequest()->getServerProtocol() === 'https';
|
|
$domain = $this->config->getSystemValueString('cookie_domain');
|
|
|
|
unset($_COOKIE['nc_username']); //TODO: DI
|
|
unset($_COOKIE['nc_token']);
|
|
unset($_COOKIE['nc_session_id']);
|
|
setcookie('nc_username', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT, $domain, $secureCookie, true);
|
|
setcookie('nc_token', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT, $domain, $secureCookie, true);
|
|
setcookie('nc_session_id', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT, $domain, $secureCookie, true);
|
|
// old cookies might be stored under /webroot/ instead of /webroot
|
|
// and Firefox doesn't like it!
|
|
setcookie('nc_username', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT . '/', $domain, $secureCookie, true);
|
|
setcookie('nc_token', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT . '/', $domain, $secureCookie, true);
|
|
setcookie('nc_session_id', '', $this->timeFactory->getTime() - 3600, OC::$WEBROOT . '/', $domain, $secureCookie, true);
|
|
}
|
|
|
|
/**
|
|
* Update password of the browser session token if there is one
|
|
*
|
|
* @param string $password
|
|
*/
|
|
public function updateSessionTokenPassword($password) {
|
|
try {
|
|
$sessionId = $this->session->getId();
|
|
$token = $this->tokenProvider->getToken($sessionId);
|
|
$this->tokenProvider->setPassword($token, $sessionId, $password);
|
|
} catch (SessionNotAvailableException $ex) {
|
|
// Nothing to do
|
|
} catch (InvalidTokenException $ex) {
|
|
// Nothing to do
|
|
}
|
|
}
|
|
|
|
public function updateTokens(string $uid, string $password) {
|
|
$this->tokenProvider->updatePasswords($uid, $password);
|
|
}
|
|
}
|