add OCC command to enable/disable 2FA for a user

core/Command/TwoFactorAuth/Disable.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * @author Christoph Wurst <christoph@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\Command\TwoFactorAuth;
+
+use OC\Authentication\TwoFactorAuth\Manager;
+use OC\User\Manager as UserManager;
+use OC\Core\Command\Base;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Disable extends Base {
+
+	/** @var Manager */
+	private $manager;
+
+	/** @var UserManager */
+	private $userManager;
+
+	public function __construct(Manager $manager, UserManager $userManager) {
+		parent::__construct('twofactorauth:disable');
+		$this->manager = $manager;
+		$this->userManager = $userManager;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this->setName('twofactorauth:disable');
+		$this->setDescription('Disable two-factor authentication for a user');
+		$this->addArgument('uid', InputArgument::REQUIRED);
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$uid = $input->getArgument('uid');
+		$user = $this->userManager->get($uid);
+		if (is_null($user)) {
+			$output->writeln("<error>Invalid UID</error>");
+			return;
+		}
+		$this->manager->disableTwoFactorAuthentication($user);
+		$output->writeln("Two-factor authentication disabled for user $uid");
+	}
+
+}

core/Command/TwoFactorAuth/Enable.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * @author Christoph Wurst <christoph@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\Command\TwoFactorAuth;
+
+use OC\Authentication\TwoFactorAuth\Manager;
+use OC\User\Manager as UserManager;
+use OC\Core\Command\Base;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Enable extends Base {
+
+	/** @var Manager */
+	private $manager;
+
+	/** @var UserManager */
+	private $userManager;
+
+	public function __construct(Manager $manager, UserManager $userManager) {
+		parent::__construct('twofactorauth:enable');
+		$this->manager = $manager;
+		$this->userManager = $userManager;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this->setName('twofactorauth:enable');
+		$this->setDescription('Enable two-factor authentication for a user');
+		$this->addArgument('uid', InputArgument::REQUIRED);
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$uid = $input->getArgument('uid');
+		$user = $this->userManager->get($uid);
+		if (is_null($user)) {
+			$output->writeln("<error>Invalid UID</error>");
+			return;
+		}
+		$this->manager->enableTwoFactorAuthentication($user);
+		$output->writeln("Two-factor authentication enabled for user $uid");
+	}
+
+}

core/Middleware/TwoFactorMiddleware.php

@@ -82,6 +82,10 @@ class TwoFactorMiddleware extends Middleware {
 
 			if ($this->twoFactorManager->isTwoFactorAuthenticated($user)) {
 				$this->checkTwoFactor($controller, $methodName);
+			} else if ($controller instanceof TwoFactorChallengeController) {
+				// Allow access to the two-factor controllers only if two-factor authentication
+				// is in progress.
+				throw new UserAlreadyLoggedInException();
 			}
 		}
 		// TODO: dont check/enforce 2FA if a auth token is used

core/register_command.php

@@ -58,6 +58,13 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
 	$application->add(new OC\Core\Command\App\GetPath());
 	$application->add(new OC\Core\Command\App\ListApps(\OC::$server->getAppManager()));
 	
+	$application->add(new OC\Core\Command\TwoFactorAuth\Enable(
+		\OC::$server->getTwoFactorAuthManager(), \OC::$server->getUserManager()
+	));
+	$application->add(new OC\Core\Command\TwoFactorAuth\Disable(
+		\OC::$server->getTwoFactorAuthManager(), \OC::$server->getUserManager()
+	));
+
 	$application->add(new OC\Core\Command\Background\Cron(\OC::$server->getConfig()));
 	$application->add(new OC\Core\Command\Background\WebCron(\OC::$server->getConfig()));
 	$application->add(new OC\Core\Command\Background\Ajax(\OC::$server->getConfig()));

lib/private/Authentication/TwoFactorAuth/Manager.php

@@ -26,6 +26,7 @@ use OC;
 use OC\App\AppManager;
 use OCP\AppFramework\QueryException;
 use OCP\Authentication\TwoFactorAuth\IProvider;
+use OCP\IConfig;
 use OCP\ISession;
 use OCP\IUser;
 
@@ -39,13 +40,18 @@ class Manager {
 	/** @var ISession */
 	private $session;
 
+	/** @var IConfig */
+	private $config;
+
 	/**
 	 * @param AppManager $appManager
 	 * @param ISession $session
+	 * @param IConfig $config
 	 */
-	public function __construct(AppManager $appManager, ISession $session) {
+	public function __construct(AppManager $appManager, ISession $session, IConfig $config) {
 		$this->appManager = $appManager;
 		$this->session = $session;
+		$this->config = $config;
 	}
 
 	/**
@@ -55,7 +61,26 @@ class Manager {
 	 * @return boolean
 	 */
 	public function isTwoFactorAuthenticated(IUser $user) {
-		return count($this->getProviders($user)) > 0;
+		$twoFactorEnabled = ((int) $this->config->getUserValue($user->getUID(), 'core', 'two_factor_auth_disabled', 0)) === 0;
+		return $twoFactorEnabled && count($this->getProviders($user)) > 0;
+	}
+
+	/**
+	 * Disable 2FA checks for the given user
+	 *
+	 * @param IUser $user
+	 */
+	public function disableTwoFactorAuthentication(IUser $user) {
+		$this->config->setUserValue($user->getUID(), 'core', 'two_factor_auth_disabled', 1);
+	}
+
+	/**
+	 * Enable all 2FA checks for the given user
+	 *
+	 * @param IUser $user
+	 */
+	public function enableTwoFactorAuthentication(IUser $user) {
+		$this->config->deleteUserValue($user->getUID(), 'core', 'two_factor_auth_disabled');
 	}
 
 	/**

lib/private/Server.php

@@ -277,7 +277,7 @@ class Server extends ServerContainer implements IServerContainer {
 		});
 
 		$this->registerService('\OC\Authentication\TwoFactorAuth\Manager', function (Server $c) {
-			return new \OC\Authentication\TwoFactorAuth\Manager($c->getAppManager(), $c->getSession());
+			return new \OC\Authentication\TwoFactorAuth\Manager($c->getAppManager(), $c->getSession(), $c->getConfig());
 		});
 
 		$this->registerService('NavigationManager', function ($c) {