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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Scheduled task to revoke expired factors
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*
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* @package factor_grace
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* @author Peter Burnett <peterburnett@catalyst-au.net>
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* @copyright Catalyst IT
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace factor_grace\task;
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/**
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* Scheduled task to revoke expired gracemode factors
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*/
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class revoke_expired_factors extends \core\task\scheduled_task {
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/**
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* Return the task's name as shown in admin screens.
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*
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* @return string
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*/
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public function get_name(): string {
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return get_string('revokeexpiredfactors', 'factor_grace');
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}
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/**
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* Execute the task.
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*
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* @return void
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*/
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public function execute(): void {
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mtrace('Starting to revoke expired Grace factors');
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$this->revoke_factors();
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}
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/**
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* Revokes all grace factors that have a valid timecreated and are outside the duration.
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*
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* @return void
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*/
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private function revoke_factors(): void {
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global $DB;
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// If config is not set, pull out.
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$duration = get_config('factor_grace', 'graceperiod');
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if (!$duration) {
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mtrace('Gracemode duration is not set. Exiting...');
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return;
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}
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$revoketime = time() - $duration;
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// Single query implementation.
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$sql = "UPDATE {tool_mfa}
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SET revoked = 1,
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timemodified = :timemodified
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WHERE timecreated < :revoketime
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AND factor = :factor";
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$DB->execute($sql, ['timemodified' => time(), 'revoketime' => $revoketime, 'factor' => 'grace']);
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mtrace('Finished revoking expired Grace factors');
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}
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}
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