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   1  <?php
   2  // This file is part of Moodle - https://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 <https://www.gnu.org/licenses/>.
  16  
  17  namespace core_user;
  18  
  19  /**
  20   * Update public key against registered user device.
  21   *
  22   * @package     core
  23   * @copyright   Alex Morris <alex.morris@catalyst.net.nz>
  24   * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   * @since       Moodle 4.2
  26   */
  27  class devicekey {
  28      /**
  29       * Update the users public key for the specified device and app.
  30       *
  31       * @param string $uuid The device UUID.
  32       * @param string $appid The app id, usually something like com.moodle.moodlemobile.
  33       * @param string $publickey The app generated public key.
  34       * @return bool
  35       * @since Moodle 4.2
  36       */
  37      public static function update_device_public_key(string $uuid, string $appid, string $publickey): bool {
  38          global $DB, $USER;
  39  
  40          $params = [
  41              'uuid' => $uuid,
  42              'appid' => $appid,
  43              'userid' => $USER->id,
  44          ];
  45  
  46          if ($DB->record_exists('user_devices', $params)) {
  47              $DB->set_field('user_devices', 'publickey', $publickey, $params);
  48              return true;
  49          }
  50          return false;
  51      }
  52  }