nextcloud/core/Controller/LoginController.php

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<?php
/**
* @author Christoph Wurst <christoph@owncloud.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Core\Controller;
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use OC\Authentication\TwoFactorAuth\Manager;
use OC\User\Session;
use OC_App;
use OC_Util;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\AppFramework\Http\TemplateResponse;
use OCP\IConfig;
use OCP\IRequest;
use OCP\ISession;
use OCP\IURLGenerator;
use OCP\IUser;
use OCP\IUserManager;
class LoginController extends Controller {
/** @var IUserManager */
private $userManager;
/** @var IConfig */
private $config;
/** @var ISession */
private $session;
/** @var Session */
private $userSession;
/** @var IURLGenerator */
private $urlGenerator;
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/** @var Manager */
private $twoFactorManager;
/**
* @param string $appName
* @param IRequest $request
* @param IUserManager $userManager
* @param IConfig $config
* @param ISession $session
* @param Session $userSession
* @param IURLGenerator $urlGenerator
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* @param Manager $twoFactorManager
*/
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function __construct($appName, IRequest $request, IUserManager $userManager, IConfig $config, ISession $session,
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Session $userSession, IURLGenerator $urlGenerator, Manager $twoFactorManager) {
parent::__construct($appName, $request);
$this->userManager = $userManager;
$this->config = $config;
$this->session = $session;
$this->userSession = $userSession;
$this->urlGenerator = $urlGenerator;
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$this->twoFactorManager = $twoFactorManager;
}
/**
* @NoAdminRequired
* @UseSession
*
* @return RedirectResponse
*/
public function logout() {
$loginToken = $this->request->getCookie('oc_token');
if (!is_null($loginToken)) {
$this->config->deleteUserValue($this->userSession->getUser()->getUID(), 'login_token', $loginToken);
}
$this->userSession->logout();
return new RedirectResponse($this->urlGenerator->linkToRouteAbsolute('core.login.showLoginForm'));
}
/**
* @PublicPage
* @NoCSRFRequired
* @UseSession
*
* @param string $user
* @param string $redirect_url
* @param string $remember_login
*
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* @return TemplateResponse|RedirectResponse
*/
public function showLoginForm($user, $redirect_url, $remember_login) {
if ($this->userSession->isLoggedIn()) {
return new RedirectResponse(OC_Util::getDefaultPageUrl());
}
$parameters = array();
$loginMessages = $this->session->get('loginMessages');
$errors = [];
$messages = [];
if (is_array($loginMessages)) {
list($errors, $messages) = $loginMessages;
}
$this->session->remove('loginMessages');
foreach ($errors as $value) {
$parameters[$value] = true;
}
$parameters['messages'] = $messages;
if (!is_null($user) && $user !== '') {
$parameters['loginName'] = $user;
$parameters['user_autofocus'] = false;
} else {
$parameters['loginName'] = '';
$parameters['user_autofocus'] = true;
}
if (!empty($redirect_url)) {
$parameters['redirect_url'] = $redirect_url;
}
$parameters['canResetPassword'] = true;
$parameters['resetPasswordLink'] = $this->config->getSystemValue('lost_password_link', '');
if (!$parameters['resetPasswordLink']) {
if (!is_null($user) && $user !== '') {
$userObj = $this->userManager->get($user);
if ($userObj instanceof IUser) {
$parameters['canResetPassword'] = $userObj->canChangePassword();
}
}
}
$parameters['alt_login'] = OC_App::getAlternativeLogIns();
$parameters['rememberLoginAllowed'] = OC_Util::rememberLoginAllowed();
$parameters['rememberLoginState'] = !empty($remember_login) ? $remember_login : 0;
if (!is_null($user) && $user !== '') {
$parameters['loginName'] = $user;
$parameters['user_autofocus'] = false;
} else {
$parameters['loginName'] = '';
$parameters['user_autofocus'] = true;
}
return new TemplateResponse(
$this->appName, 'login', $parameters, 'guest'
);
}
/**
* @PublicPage
* @UseSession
*
* @param string $user
* @param string $password
* @param string $redirect_url
* @return RedirectResponse
*/
public function tryLogin($user, $password, $redirect_url) {
// TODO: Add all the insane error handling
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/* @var $loginResult IUser */
$loginResult = $this->userManager->checkPassword($user, $password);
if ($loginResult === false) {
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$users = $this->userManager->getByEmail($user);
// we only allow login by email if unique
if (count($users) === 1) {
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$user = $users[0]->getUID();
$loginResult = $this->userManager->checkPassword($user, $password);
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}
}
if ($loginResult === false) {
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$this->session->set('loginMessages', [
['invalidpassword']
]);
// Read current user and append if possible
$args = !is_null($user) ? ['user' => $user] : [];
return new RedirectResponse($this->urlGenerator->linkToRoute('core.login.showLoginForm', $args));
}
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// TODO: remove password checks from above and let the user session handle failures
// requires https://github.com/owncloud/core/pull/24616
$this->userSession->login($user, $password);
$this->userSession->createSessionToken($this->request, $loginResult->getUID(), $user, $password);
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if ($this->twoFactorManager->isTwoFactorAuthenticated($loginResult)) {
$this->twoFactorManager->prepareTwoFactorLogin($loginResult);
if (!is_null($redirect_url)) {
return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge', [
'redirect_url' => $redirect_url
]));
}
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return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge'));
}
if (!is_null($redirect_url) && $this->userSession->isLoggedIn()) {
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$location = $this->urlGenerator->getAbsoluteURL(urldecode($redirect_url));
// Deny the redirect if the URL contains a @
// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
if (strpos($location, '@') === false) {
return new RedirectResponse($location);
}
}
return new RedirectResponse($this->urlGenerator->linkToRoute('files.view.index'));
}
}