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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * This file returns an array of available public keys for the LTI 1.3 tool.
  19   *
  20   * @package    enrol_lti
  21   * @copyright  2021 Jake Dallimore <jrhdallimore@gmail.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  use Packback\Lti1p3\JwksEndpoint;
  26  
  27  define('NO_DEBUG_DISPLAY', true);
  28  define('NO_MOODLE_COOKIES', true);
  29  
  30  require_once(__DIR__ . '/../../config.php');
  31  
  32  $privatekey = get_config('enrol_lti', 'lti_13_privatekey');
  33  $key = get_config('enrol_lti', 'lti_13_kid');
  34  $keyendpoint = JwksEndpoint::new([$key => $privatekey]);
  35  
  36  @header('Content-Type: application/json; charset=utf-8');
  37  $keyendpoint->outputJwks();