375 lines
11 KiB
PHP
375 lines
11 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2017, Sandro Lutz <sandro.lutz@temparus.ch>
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* @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Daniel Kesselberg <mail@danielkesselberg.de>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Weimann <mail@michael-weimann.eu>
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* @author Rayn0r <andrew@ilpss8.myfirewall.org>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\Core\Controller;
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use OC\AppFramework\Http\Request;
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use OC\Authentication\Login\Chain;
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use OC\Authentication\Login\LoginData;
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use OC\Authentication\WebAuthn\Manager as WebAuthnManager;
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use OC\Security\Bruteforce\Throttler;
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use OC\User\Session;
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use OC_App;
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use OC_Util;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\DataResponse;
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use OCP\AppFramework\Http\RedirectResponse;
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use OCP\AppFramework\Http\TemplateResponse;
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use OCP\Defaults;
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use OCP\IConfig;
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use OCP\IInitialStateService;
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use OCP\ILogger;
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use OCP\IRequest;
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use OCP\ISession;
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use OCP\IURLGenerator;
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use OCP\IUser;
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use OCP\IUserManager;
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use OCP\IUserSession;
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use OCP\Util;
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class LoginController extends Controller {
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public const LOGIN_MSG_INVALIDPASSWORD = 'invalidpassword';
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public const LOGIN_MSG_USERDISABLED = 'userdisabled';
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/** @var IUserManager */
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private $userManager;
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/** @var IConfig */
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private $config;
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/** @var ISession */
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private $session;
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/** @var IUserSession|Session */
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private $userSession;
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/** @var IURLGenerator */
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private $urlGenerator;
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/** @var ILogger */
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private $logger;
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/** @var Defaults */
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private $defaults;
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/** @var Throttler */
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private $throttler;
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/** @var Chain */
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private $loginChain;
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/** @var IInitialStateService */
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private $initialStateService;
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/** @var WebAuthnManager */
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private $webAuthnManager;
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public function __construct(?string $appName,
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IRequest $request,
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IUserManager $userManager,
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IConfig $config,
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ISession $session,
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IUserSession $userSession,
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IURLGenerator $urlGenerator,
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ILogger $logger,
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Defaults $defaults,
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Throttler $throttler,
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Chain $loginChain,
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IInitialStateService $initialStateService,
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WebAuthnManager $webAuthnManager) {
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parent::__construct($appName, $request);
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$this->userManager = $userManager;
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$this->config = $config;
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$this->session = $session;
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$this->userSession = $userSession;
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$this->urlGenerator = $urlGenerator;
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$this->logger = $logger;
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$this->defaults = $defaults;
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$this->throttler = $throttler;
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$this->loginChain = $loginChain;
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$this->initialStateService = $initialStateService;
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$this->webAuthnManager = $webAuthnManager;
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}
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/**
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* @NoAdminRequired
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* @UseSession
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*
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* @return RedirectResponse
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*/
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public function logout() {
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$loginToken = $this->request->getCookie('nc_token');
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if (!is_null($loginToken)) {
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$this->config->deleteUserValue($this->userSession->getUser()->getUID(), 'login_token', $loginToken);
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}
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$this->userSession->logout();
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$response = new RedirectResponse($this->urlGenerator->linkToRouteAbsolute(
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'core.login.showLoginForm',
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['clear' => true] // this param the the code in login.js may be removed when the "Clear-Site-Data" is working in the browsers
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));
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$this->session->set('clearingExecutionContexts', '1');
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$this->session->close();
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if (!$this->request->isUserAgent([Request::USER_AGENT_CHROME, Request::USER_AGENT_ANDROID_MOBILE_CHROME])) {
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$response->addHeader('Clear-Site-Data', '"cache", "storage"');
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}
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return $response;
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}
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/**
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* @PublicPage
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* @NoCSRFRequired
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* @UseSession
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*
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* @param string $user
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* @param string $redirect_url
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*
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* @return TemplateResponse|RedirectResponse
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*/
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public function showLoginForm(string $user = null, string $redirect_url = null): Http\Response {
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if ($this->userSession->isLoggedIn()) {
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return new RedirectResponse(OC_Util::getDefaultPageUrl());
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}
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$loginMessages = $this->session->get('loginMessages');
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if (is_array($loginMessages)) {
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list($errors, $messages) = $loginMessages;
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$this->initialStateService->provideInitialState('core', 'loginMessages', $messages);
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$this->initialStateService->provideInitialState('core', 'loginErrors', $errors);
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}
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$this->session->remove('loginMessages');
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if ($user !== null && $user !== '') {
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$this->initialStateService->provideInitialState('core', 'loginUsername', $user);
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} else {
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$this->initialStateService->provideInitialState('core', 'loginUsername', '');
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}
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$this->initialStateService->provideInitialState(
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'core',
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'loginAutocomplete',
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$this->config->getSystemValue('login_form_autocomplete', true) === true
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);
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if (!empty($redirect_url)) {
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$this->initialStateService->provideInitialState('core', 'loginRedirectUrl', $redirect_url);
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}
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$this->initialStateService->provideInitialState(
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'core',
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'loginThrottleDelay',
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$this->throttler->getDelay($this->request->getRemoteAddress())
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);
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$this->setPasswordResetInitialState($user);
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$this->initialStateService->provideInitialState('core', 'webauthn-available', $this->webAuthnManager->isWebAuthnAvailable());
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// OpenGraph Support: http://ogp.me/
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Util::addHeader('meta', ['property' => 'og:title', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
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Util::addHeader('meta', ['property' => 'og:description', 'content' => Util::sanitizeHTML($this->defaults->getSlogan())]);
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Util::addHeader('meta', ['property' => 'og:site_name', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
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Util::addHeader('meta', ['property' => 'og:url', 'content' => $this->urlGenerator->getAbsoluteURL('/')]);
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Util::addHeader('meta', ['property' => 'og:type', 'content' => 'website']);
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Util::addHeader('meta', ['property' => 'og:image', 'content' => $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('core', 'favicon-touch.png'))]);
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$parameters = [
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'alt_login' => OC_App::getAlternativeLogIns(),
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];
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return new TemplateResponse(
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$this->appName, 'login', $parameters, 'guest'
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);
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}
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/**
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* Sets the password reset state
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*
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* @param string $username
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*/
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private function setPasswordResetInitialState(?string $username): void {
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if ($username !== null && $username !== '') {
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$user = $this->userManager->get($username);
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} else {
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$user = null;
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}
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$passwordLink = $this->config->getSystemValue('lost_password_link', '');
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$this->initialStateService->provideInitialState(
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'core',
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'loginResetPasswordLink',
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$passwordLink
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);
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$this->initialStateService->provideInitialState(
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'core',
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'loginCanResetPassword',
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$this->canResetPassword($passwordLink, $user)
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);
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}
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/**
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* @param string|null $passwordLink
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* @param IUser|null $user
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*
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* Users may not change their passwords if:
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* - The account is disabled
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* - The backend doesn't support password resets
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* - The password reset function is disabled
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*
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* @return bool
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*/
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private function canResetPassword(?string $passwordLink, ?IUser $user): bool {
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if ($passwordLink === 'disabled') {
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return false;
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}
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if (!$passwordLink && $user !== null) {
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return $user->canChangePassword();
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}
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if ($user !== null && $user->isEnabled() === false) {
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return false;
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}
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return true;
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}
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private function generateRedirect(?string $redirectUrl): RedirectResponse {
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if ($redirectUrl !== null && $this->userSession->isLoggedIn()) {
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$location = $this->urlGenerator->getAbsoluteURL(urldecode($redirectUrl));
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// Deny the redirect if the URL contains a @
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// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
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if (strpos($location, '@') === false) {
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return new RedirectResponse($location);
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}
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}
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return new RedirectResponse(OC_Util::getDefaultPageUrl());
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}
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/**
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* @PublicPage
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* @UseSession
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* @NoCSRFRequired
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* @BruteForceProtection(action=login)
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*
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* @param string $user
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* @param string $password
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* @param string $redirect_url
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* @param string $timezone
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* @param string $timezone_offset
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*
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* @return RedirectResponse
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*/
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public function tryLogin(string $user,
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string $password,
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string $redirect_url = null,
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string $timezone = '',
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string $timezone_offset = ''): RedirectResponse {
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// If the user is already logged in and the CSRF check does not pass then
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// simply redirect the user to the correct page as required. This is the
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// case when an user has already logged-in, in another tab.
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if (!$this->request->passesCSRFCheck()) {
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return $this->generateRedirect($redirect_url);
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}
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$data = new LoginData(
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$this->request,
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trim($user),
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$password,
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$redirect_url,
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$timezone,
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$timezone_offset
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);
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$result = $this->loginChain->process($data);
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if (!$result->isSuccess()) {
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return $this->createLoginFailedResponse(
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$data->getUsername(),
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$user,
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$redirect_url,
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$result->getErrorMessage()
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);
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}
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if ($result->getRedirectUrl() !== null) {
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return new RedirectResponse($result->getRedirectUrl());
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}
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return $this->generateRedirect($redirect_url);
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}
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/**
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* Creates a login failed response.
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*
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* @param string $user
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* @param string $originalUser
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* @param string $redirect_url
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* @param string $loginMessage
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*
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* @return RedirectResponse
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*/
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private function createLoginFailedResponse(
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$user, $originalUser, $redirect_url, string $loginMessage) {
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// Read current user and append if possible we need to
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// return the unmodified user otherwise we will leak the login name
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$args = $user !== null ? ['user' => $originalUser] : [];
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if ($redirect_url !== null) {
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$args['redirect_url'] = $redirect_url;
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}
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$response = new RedirectResponse(
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$this->urlGenerator->linkToRoute('core.login.showLoginForm', $args)
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);
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$response->throttle(['user' => substr($user, 0, 64)]);
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$this->session->set('loginMessages', [
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[$loginMessage], []
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]);
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return $response;
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}
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/**
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* @NoAdminRequired
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* @UseSession
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* @BruteForceProtection(action=sudo)
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*
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* @param string $password
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*
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* @return DataResponse
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* @license GNU AGPL version 3 or any later version
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*
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*/
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public function confirmPassword($password) {
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$loginName = $this->userSession->getLoginName();
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$loginResult = $this->userManager->checkPassword($loginName, $password);
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if ($loginResult === false) {
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$response = new DataResponse([], Http::STATUS_FORBIDDEN);
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$response->throttle();
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return $response;
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}
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$confirmTimestamp = time();
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$this->session->set('last-password-confirm', $confirmTimestamp);
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return new DataResponse(['lastLogin' => $confirmTimestamp], Http::STATUS_OK);
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}
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}
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