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- <?php
- declare(strict_types=1);
- /**
- * @copyright 2018 Christoph Wurst <christoph@winzerhof-wurst.at>
- *
- * @author 2018 Christoph Wurst <christoph@winzerhof-wurst.at>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * 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
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- namespace OC\Authentication\TwoFactorAuth;
- use OCP\IConfig;
- use OCP\IGroupManager;
- use OCP\IUser;
- class MandatoryTwoFactor {
- /** @var IConfig */
- private $config;
- /** @var IGroupManager */
- private $groupManager;
- public function __construct(IConfig $config, IGroupManager $groupManager) {
- $this->config = $config;
- $this->groupManager = $groupManager;
- }
- /**
- * Get the state of enforced two-factor auth
- */
- public function getState(): EnforcementState {
- return new EnforcementState(
- $this->config->getSystemValue('twofactor_enforced', 'false') === 'true',
- $this->config->getSystemValue('twofactor_enforced_groups', []),
- $this->config->getSystemValue('twofactor_enforced_excluded_groups', [])
- );
- }
- /**
- * Set the state of enforced two-factor auth
- */
- public function setState(EnforcementState $state) {
- $this->config->setSystemValue('twofactor_enforced', $state->isEnforced() ? 'true' : 'false');
- $this->config->setSystemValue('twofactor_enforced_groups', $state->getEnforcedGroups());
- $this->config->setSystemValue('twofactor_enforced_excluded_groups', $state->getExcludedGroups());
- }
- /**
- * Check if two-factor auth is enforced for a specific user
- *
- * The admin(s) can enforce two-factor auth system-wide, for certain groups only
- * and also have the option to exclude users of certain groups. This method will
- * check their membership of those groups.
- *
- * @param IUser $user
- *
- * @return bool
- */
- public function isEnforcedFor(IUser $user): bool {
- $state = $this->getState();
- if (!$state->isEnforced()) {
- return false;
- }
- $uid = $user->getUID();
- /*
- * If there is a list of enforced groups, we only enforce 2FA for members of those groups.
- * For all the other users it is not enforced (overruling the excluded groups list).
- */
- if (!empty($state->getEnforcedGroups())) {
- foreach ($state->getEnforcedGroups() as $group) {
- if ($this->groupManager->isInGroup($uid, $group)) {
- return true;
- }
- }
- // Not a member of any of these groups -> no 2FA enforced
- return false;
- }
- /**
- * If the user is member of an excluded group, 2FA won't be enforced.
- */
- foreach ($state->getExcludedGroups() as $group) {
- if ($this->groupManager->isInGroup($uid, $group)) {
- return false;
- }
- }
- /**
- * No enforced groups configured and user not member of an excluded groups,
- * so 2FA is enforced.
- */
- return true;
- }
- }
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