308 lines
9 KiB
PHP
308 lines
9 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julius Haertl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Victor Dubiniuk <dubiniuk@owncloud.com>
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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 OCA\Encryption\Exceptions\PrivateKeyMissingException;
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use \OCP\AppFramework\Controller;
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use \OCP\AppFramework\Http\TemplateResponse;
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use OCP\AppFramework\Utility\ITimeFactory;
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use OCP\Encryption\IManager;
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use \OCP\IURLGenerator;
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use \OCP\IRequest;
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use \OCP\IL10N;
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use \OCP\IConfig;
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use OCP\IUserManager;
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use OCP\Mail\IMailer;
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use OCP\Security\ICrypto;
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use OCP\Security\ISecureRandom;
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/**
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* Class LostController
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*
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* Successfully changing a password will emit the post_passwordReset hook.
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*
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* @package OC\Core\Controller
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*/
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class LostController extends Controller {
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/** @var IURLGenerator */
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protected $urlGenerator;
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/** @var IUserManager */
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protected $userManager;
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/** @var \OC_Defaults */
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protected $defaults;
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/** @var IL10N */
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protected $l10n;
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/** @var string */
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protected $from;
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/** @var IManager */
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protected $encryptionManager;
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/** @var IConfig */
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protected $config;
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/** @var ISecureRandom */
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protected $secureRandom;
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/** @var IMailer */
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protected $mailer;
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/** @var ITimeFactory */
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protected $timeFactory;
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/** @var ICrypto */
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protected $crypto;
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/**
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* @param string $appName
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* @param IRequest $request
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* @param IURLGenerator $urlGenerator
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* @param IUserManager $userManager
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* @param \OC_Defaults $defaults
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* @param IL10N $l10n
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* @param IConfig $config
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* @param ISecureRandom $secureRandom
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* @param string $defaultMailAddress
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* @param IManager $encryptionManager
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* @param IMailer $mailer
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* @param ITimeFactory $timeFactory
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* @param ICrypto $crypto
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*/
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public function __construct($appName,
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IRequest $request,
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IURLGenerator $urlGenerator,
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IUserManager $userManager,
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\OC_Defaults $defaults,
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IL10N $l10n,
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IConfig $config,
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ISecureRandom $secureRandom,
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$defaultMailAddress,
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IManager $encryptionManager,
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IMailer $mailer,
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ITimeFactory $timeFactory,
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ICrypto $crypto) {
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parent::__construct($appName, $request);
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$this->urlGenerator = $urlGenerator;
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$this->userManager = $userManager;
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$this->defaults = $defaults;
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$this->l10n = $l10n;
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$this->secureRandom = $secureRandom;
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$this->from = $defaultMailAddress;
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$this->encryptionManager = $encryptionManager;
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$this->config = $config;
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$this->mailer = $mailer;
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$this->timeFactory = $timeFactory;
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$this->crypto = $crypto;
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}
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/**
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* Someone wants to reset their password:
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*
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* @PublicPage
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* @NoCSRFRequired
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*
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* @param string $token
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* @param string $userId
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* @return TemplateResponse
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*/
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public function resetform($token, $userId) {
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try {
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$this->checkPasswordResetToken($token, $userId);
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} catch (\Exception $e) {
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return new TemplateResponse(
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'core', 'error', [
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"errors" => array(array("error" => $e->getMessage()))
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],
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'guest'
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);
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}
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return new TemplateResponse(
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'core',
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'lostpassword/resetpassword',
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array(
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'link' => $this->urlGenerator->linkToRouteAbsolute('core.lost.setPassword', array('userId' => $userId, 'token' => $token)),
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),
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'guest'
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);
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}
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/**
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* @param string $token
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* @param string $userId
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* @throws \Exception
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*/
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protected function checkPasswordResetToken($token, $userId) {
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$user = $this->userManager->get($userId);
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if($user === null) {
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throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
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}
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try {
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$encryptedToken = $this->config->getUserValue($userId, 'core', 'lostpassword', null);
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$mailAddress = !is_null($user->getEMailAddress()) ? $user->getEMailAddress() : '';
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$decryptedToken = $this->crypto->decrypt($encryptedToken, $mailAddress.$this->config->getSystemValue('secret'));
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} catch (\Exception $e) {
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throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
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}
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$splittedToken = explode(':', $decryptedToken);
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if(count($splittedToken) !== 2) {
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throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
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}
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if ($splittedToken[0] < ($this->timeFactory->getTime() - 60*60*12) ||
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$user->getLastLogin() > $splittedToken[0]) {
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throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is expired'));
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}
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if (!hash_equals($splittedToken[1], $token)) {
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throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
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}
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}
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/**
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* @param $message
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* @param array $additional
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* @return array
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*/
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private function error($message, array $additional=array()) {
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return array_merge(array('status' => 'error', 'msg' => $message), $additional);
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}
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/**
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* @return array
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*/
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private function success() {
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return array('status'=>'success');
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}
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/**
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* @PublicPage
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* @BruteForceProtection passwordResetEmail
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*
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* @param string $user
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* @return array
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*/
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public function email($user){
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// FIXME: use HTTP error codes
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try {
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$this->sendEmail($user);
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} catch (\Exception $e){
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return $this->error($e->getMessage());
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}
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return $this->success();
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}
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/**
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* @PublicPage
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* @param string $token
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* @param string $userId
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* @param string $password
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* @param boolean $proceed
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* @return array
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*/
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public function setPassword($token, $userId, $password, $proceed) {
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if ($this->encryptionManager->isEnabled() && !$proceed) {
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return $this->error('', array('encryption' => true));
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}
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try {
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$this->checkPasswordResetToken($token, $userId);
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$user = $this->userManager->get($userId);
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\OC_Hook::emit('\OC\Core\LostPassword\Controller\LostController', 'pre_passwordReset', array('uid' => $userId, 'password' => $password));
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if (!$user->setPassword($password)) {
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throw new \Exception();
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}
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\OC_Hook::emit('\OC\Core\LostPassword\Controller\LostController', 'post_passwordReset', array('uid' => $userId, 'password' => $password));
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$this->config->deleteUserValue($userId, 'core', 'lostpassword');
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@\OC_User::unsetMagicInCookie();
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} catch (\Exception $e){
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return $this->error($e->getMessage());
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}
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return $this->success();
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}
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/**
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* @param string $user
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* @throws \Exception
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*/
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protected function sendEmail($user) {
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if (!$this->userManager->userExists($user)) {
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throw new \Exception($this->l10n->t('Couldn\'t send reset email. Please make sure your username is correct.'));
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}
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$userObject = $this->userManager->get($user);
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$email = $userObject->getEMailAddress();
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if (empty($email)) {
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throw new \Exception(
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$this->l10n->t('Could not send reset email because there is no email address for this username. Please contact your administrator.')
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);
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}
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// Generate the token. It is stored encrypted in the database with the
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// secret being the users' email address appended with the system secret.
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// This makes the token automatically invalidate once the user changes
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// their email address.
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$token = $this->secureRandom->generate(
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21,
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ISecureRandom::CHAR_DIGITS.
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ISecureRandom::CHAR_LOWER.
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ISecureRandom::CHAR_UPPER
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);
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$tokenValue = $this->timeFactory->getTime() .':'. $token;
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$mailAddress = !is_null($userObject->getEMailAddress()) ? $userObject->getEMailAddress() : '';
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$encryptedValue = $this->crypto->encrypt($tokenValue, $mailAddress.$this->config->getSystemValue('secret'));
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$this->config->setUserValue($user, 'core', 'lostpassword', $encryptedValue);
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$link = $this->urlGenerator->linkToRouteAbsolute('core.lost.resetform', array('userId' => $user, 'token' => $token));
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$tmpl = new \OC_Template('core', 'lostpassword/email');
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$tmpl->assign('link', $link);
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$msg = $tmpl->fetchPage();
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try {
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$message = $this->mailer->createMessage();
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$message->setTo([$email => $user]);
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$message->setSubject($this->l10n->t('%s password reset', [$this->defaults->getName()]));
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$message->setPlainBody($msg);
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$message->setFrom([$this->from => $this->defaults->getName()]);
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$this->mailer->send($message);
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} catch (\Exception $e) {
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throw new \Exception($this->l10n->t(
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'Couldn\'t send reset email. Please contact your administrator.'
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));
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}
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}
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}
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