1 files changed, 257 insertions, 0 deletions
diff --git a/core/controller/lostcontroller.php b/core/controller/lostcontroller.php
new file mode 100644
index 00000000000..0e0932b288b
--- /dev/null
+++ b/core/controller/lostcontroller.php
@@ -0,0 +1,257 @@
+<?php
+/**
+ * @author Bernhard Posselt <dev@bernhard-posselt.com>
+ * @author Björn Schießle <schiessle@owncloud.com>
+ * @author Lukas Reschke <lukas@owncloud.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Roeland Jago Douma <rullzer@owncloud.com>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Victor Dubiniuk <dubiniuk@owncloud.com>
+ *
+ * @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;
+
+use \OCP\AppFramework\Controller;
+use \OCP\AppFramework\Http\TemplateResponse;
+use OCP\AppFramework\Utility\ITimeFactory;
+use \OCP\IURLGenerator;
+use \OCP\IRequest;
+use \OCP\IL10N;
+use \OCP\IConfig;
+use OCP\IUserManager;
+use OCP\Mail\IMailer;
+use OCP\Security\ISecureRandom;
+use \OC_Defaults;
+use OCP\Security\StringUtils;
+
+/**
+ * Class LostController
+ *
+ * Successfully changing a password will emit the post_passwordReset hook.
+ *
+ * @package OC\Core\Controller
+ */
+class LostController extends Controller {
+
+	/** @var IURLGenerator */
+	protected $urlGenerator;
+	/** @var IUserManager */
+	protected $userManager;
+	// FIXME: Inject a non-static factory of OC_Defaults for better unit-testing
+	/** @var OC_Defaults */
+	protected $defaults;
+	/** @var IL10N */
+	protected $l10n;
+	/** @var string */
+	protected $from;
+	/** @var bool */
+	protected $isDataEncrypted;
+	/** @var IConfig */
+	protected $config;
+	/** @var ISecureRandom */
+	protected $secureRandom;
+	/** @var IMailer */
+	protected $mailer;
+	/** @var ITimeFactory */
+	protected $timeFactory;
+
+	/**
+	 * @param string $appName
+	 * @param IRequest $request
+	 * @param IURLGenerator $urlGenerator
+	 * @param IUserManager $userManager
+	 * @param OC_Defaults $defaults
+	 * @param IL10N $l10n
+	 * @param IConfig $config
+	 * @param ISecureRandom $secureRandom
+	 * @param string $from
+	 * @param string $isDataEncrypted
+	 * @param IMailer $mailer
+	 * @param ITimeFactory $timeFactory
+	 */
+	public function __construct($appName,
+								IRequest $request,
+								IURLGenerator $urlGenerator,
+								IUserManager $userManager,
+								OC_Defaults $defaults,
+								IL10N $l10n,
+								IConfig $config,
+								ISecureRandom $secureRandom,
+								$from,
+								$isDataEncrypted,
+								IMailer $mailer,
+								ITimeFactory $timeFactory) {
+		parent::__construct($appName, $request);
+		$this->urlGenerator = $urlGenerator;
+		$this->userManager = $userManager;
+		$this->defaults = $defaults;
+		$this->l10n = $l10n;
+		$this->secureRandom = $secureRandom;
+		$this->from = $from;
+		$this->isDataEncrypted = $isDataEncrypted;
+		$this->config = $config;
+		$this->mailer = $mailer;
+		$this->timeFactory = $timeFactory;
+	}
+
+	/**
+	 * Someone wants to reset their password:
+	 *
+	 * @PublicPage
+	 * @NoCSRFRequired
+	 *
+	 * @param string $token
+	 * @param string $userId
+	 * @return TemplateResponse
+	 */
+	public function resetform($token, $userId) {
+		return new TemplateResponse(
+			'core',
+			'lostpassword/resetpassword',
+			array(
+				'link' => $this->urlGenerator->linkToRouteAbsolute('core.lost.setPassword', array('userId' => $userId, 'token' => $token)),
+			),
+			'guest'
+		);
+	}
+
+	/**
+	 * @param $message
+	 * @param array $additional
+	 * @return array
+	 */
+	private function error($message, array $additional=array()) {
+		return array_merge(array('status' => 'error', 'msg' => $message), $additional);
+	}
+
+	/**
+	 * @return array
+	 */
+	private function success() {
+		return array('status'=>'success');
+	}
+
+	/**
+	 * @PublicPage
+	 *
+	 * @param string $user
+	 * @return array
+	 */
+	public function email($user){
+		// FIXME: use HTTP error codes
+		try {
+			$this->sendEmail($user);
+		} catch (\Exception $e){
+			return $this->error($e->getMessage());
+		}
+
+		return $this->success();
+	}
+
+	/**
+	 * @PublicPage
+	 * @param string $token
+	 * @param string $userId
+	 * @param string $password
+	 * @param boolean $proceed
+	 * @return array
+	 */
+	public function setPassword($token, $userId, $password, $proceed) {
+		if ($this->isDataEncrypted && !$proceed) {
+			return $this->error('', array('encryption' => true));
+		}
+
+		try {
+			$user = $this->userManager->get($userId);
+
+			$splittedToken = explode(':', $this->config->getUserValue($userId, 'owncloud', 'lostpassword', null));
+			if(count($splittedToken) !== 2) {
+				throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
+			}
+
+			if ($splittedToken[0] < ($this->timeFactory->getTime() - 60*60*12) ||
+				$user->getLastLogin() > $splittedToken[0]) {
+				throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is expired'));
+			}
+
+			if (!StringUtils::equals($splittedToken[1], $token)) {
+				throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
+			}
+
+			if (!$user->setPassword($password)) {
+				throw new \Exception();
+			}
+
+			\OC_Hook::emit('\OC\Core\LostPassword\Controller\LostController', 'post_passwordReset', array('uid' => $userId, 'password' => $password));
+
+			$this->config->deleteUserValue($userId, 'owncloud', 'lostpassword');
+			@\OC_User::unsetMagicInCookie();
+
+		} catch (\Exception $e){
+			return $this->error($e->getMessage());
+		}
+
+		return $this->success();
+	}
+
+	/**
+	 * @param string $user
+	 * @throws \Exception
+	 */
+	protected function sendEmail($user) {
+		if (!$this->userManager->userExists($user)) {
+			throw new \Exception($this->l10n->t('Couldn\'t send reset email. Please make sure your username is correct.'));
+		}
+
+		$userObject = $this->userManager->get($user);
+		$email = $userObject->getEMailAddress();
+
+		if (empty($email)) {
+			throw new \Exception(
+				$this->l10n->t('Could not send reset email because there is no email address for this username. Please contact your administrator.')
+			);
+		}
+
+		$token = $this->secureRandom->generate(21,
+			ISecureRandom::CHAR_DIGITS.
+			ISecureRandom::CHAR_LOWER.
+			ISecureRandom::CHAR_UPPER);
+		$this->config->setUserValue($user, 'owncloud', 'lostpassword', $this->timeFactory->getTime() .':'. $token);
+
+		$link = $this->urlGenerator->linkToRouteAbsolute('core.lost.resetform', array('userId' => $user, 'token' => $token));
+
+		$tmpl = new \OC_Template('core', 'lostpassword/email');
+		$tmpl->assign('link', $link);
+		$msg = $tmpl->fetchPage();
+
+		try {
+			$message = $this->mailer->createMessage();
+			$message->setTo([$email => $user]);
+			$message->setSubject($this->l10n->t('%s password reset', [$this->defaults->getName()]));
+			$message->setPlainBody($msg);
+			$message->setFrom([$this->from => $this->defaults->getName()]);
+			$this->mailer->send($message);
+		} catch (\Exception $e) {
+			throw new \Exception($this->l10n->t(
+				'Couldn\'t send reset email. Please contact your administrator.'
+			));
+		}
+	}
+
+}