115 lines
3.3 KiB
PHP
115 lines
3.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright 2018 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author 2018 Christoph Wurst <christoph@winzerhof-wurst.at>
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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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