mod/bigbluebuttonbn/bbb_broker.php

   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  * Intermediator for handling requests from the BigBlueButton server.
  19  *
  20  * @package   mod_bigbluebuttonbn
  21  * @copyright 2010 onwards, Blindside Networks Inc
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @author    Jesus Federico  (jesus [at] blindsidenetworks [dt] com)
  24  * @author    Darko Miletic  (darko.miletic [at] gmail [dt] com)
  25  */
  26
  27 // We should not have any require login or MOODLE_INTERNAL Check in this file.
  28 // phpcs:disable moodle.Files.MoodleInternal.MoodleInternalGlobalState,moodle.Files.RequireLogin.Missing
  29 require(__DIR__ . '/../../config.php');
  30
  31 use Firebase\JWT\Key;
  32 use mod_bigbluebuttonbn\broker;
  33 use mod_bigbluebuttonbn\instance;
  34 use mod_bigbluebuttonbn\local\config;
  35 use mod_bigbluebuttonbn\meeting;
  36
  37 global $PAGE, $USER, $CFG, $SESSION, $DB;
  38
  39 $params = $_REQUEST;
  40
  41 $broker = new broker();
  42 $error = $broker->validate_parameters($params);
  43 if (!empty($error)) {
  44     header('HTTP/1.0 400 Bad Request. ' . $error);
  45     return;
  46 }
  47
  48 $action = $params['action'];
  49
  50 $instance = instance::get_from_instanceid($params['bigbluebuttonbn']);
  51 if (empty($instance)) {
  52     header('HTTP/1.0 410 Gone. The activity may have been deleted');
  53     return;
  54 }
  55
  56 $PAGE->set_context($instance->get_context());
  57
  58 try {
  59     switch (strtolower($action)) {
  60         case 'recording_ready':
  61             broker::process_recording_ready($instance, $params);
  62             return;
  63         case 'meeting_events':
  64             // When meeting_events callback is implemented by BigBlueButton, Moodle receives a POST request
  65             // which is processed in the function using super globals.
  66             broker::process_meeting_events($instance);
  67             return;
  68     }
  69     header("HTTP/1.0 400 Bad request. The action '{$action}' does not exist");
  70 } catch (Exception $e) {
  71     header('HTTP/1.0 500 Internal Server Error. ' . $e->getMessage());
  72 }