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