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Differences Between: [Versions 400 and 401]

   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   * View for BigBlueButton interaction.
  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   */
  25  
  26  use core\notification;
  27  use mod_bigbluebuttonbn\instance;
  28  use mod_bigbluebuttonbn\local\exceptions\server_not_available_exception;
  29  use mod_bigbluebuttonbn\local\proxy\bigbluebutton_proxy;
  30  use mod_bigbluebuttonbn\logger;
  31  use mod_bigbluebuttonbn\meeting;
  32  use mod_bigbluebuttonbn\plugin;
  33  use mod_bigbluebuttonbn\recording;
  34  
  35  require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
  36  
  37  global $SESSION, $PAGE, $CFG, $DB, $USER, $OUTPUT;
  38  
  39  $action = required_param('action', PARAM_TEXT);
  40  $id = optional_param('id', 0, PARAM_INT);
  41  $bn = optional_param('bn', 0, PARAM_INT);
  42  $rid = optional_param('rid', '', PARAM_TEXT);
  43  $rtype = optional_param('rtype', 'presentation', PARAM_TEXT);
  44  $errors = optional_param('errors', '', PARAM_TEXT);
  45  $timeline = optional_param('timeline', 0, PARAM_INT);
  46  $index = optional_param('index', 0, PARAM_INT);
  47  $group = optional_param('group', -1, PARAM_INT);
  48  
  49  // Get the bbb instance from either the cmid (id), or the instanceid (bn).
  50  if ($id) {
  51      $instance = instance::get_from_cmid($id);
  52  } else {
  53      if ($bn) {
  54          $instance = instance::get_from_instanceid($bn);
  55      }
  56  }
  57  
  58  if (!$instance) {
  59      $courseid = optional_param('courseid', 1, PARAM_INT);
  60      \core\notification::error(get_string('general_error_not_found', 'mod_bigbluebuttonbn', $id));
  61      redirect(new moodle_url('/course/view.php', ['id' => $courseid]));
  62  }
  63  
  64  $cm = $instance->get_cm();
  65  $course = $instance->get_course();
  66  $bigbluebuttonbn = $instance->get_instance_data();
  67  $context = $instance->get_context();
  68  
  69  require_login($course, true, $cm);
  70  
  71  // Note : this uses the group optional_param as a value to decide which groupid.
  72  $groupid = groups_get_activity_group($cm, true) ?: null;
  73  if ($groupid) {
  74      $instance->set_group_id($groupid);
  75  }
  76  
  77  // Print the page header.
  78  $PAGE->set_context($context);
  79  $PAGE->set_url('/mod/bigbluebuttonbn/bbb_view.php', ['id' => $cm->id, 'bigbluebuttonbn' => $bigbluebuttonbn->id]);
  80  $PAGE->set_title(format_string($bigbluebuttonbn->name));
  81  $PAGE->set_cacheable(false);
  82  $PAGE->set_heading($course->fullname);
  83  $PAGE->blocks->show_only_fake_blocks();
  84  
  85  switch (strtolower($action)) {
  86      case 'logout':
  87          if (isset($errors) && $errors != '') {
  88              $errors = (array) json_decode(urldecode($errors));
  89              $msgerrors = '';
  90              foreach ($errors as $error) {
  91                  $msgerrors .= html_writer::tag('p', $error->{'message'}, ['class' => 'alert alert-danger']) . "\n";
  92              }
  93              throw new moodle_exception('view_error_bigbluebutton', 'bigbluebuttonbn',
  94                  $CFG->wwwroot . '/mod/bigbluebuttonbn/view.php?id=' . $id, $msgerrors, $errors);
  95          }
  96  
  97          if (empty($bigbluebuttonbn)) {
  98              echo get_string('view_message_tab_close', 'bigbluebuttonbn');
  99              die();
 100          }
 101          // Moodle event logger: Create an event for meeting left.
 102          logger::log_meeting_left_event($instance);
 103  
 104          // Update the cache.
 105          $meeting = new meeting($instance);
 106          $meeting->update_cache();
 107  
 108          // Check the origin page.
 109          $select = "userid = ? AND log = ?";
 110          $params = [
 111              'userid' => $USER->id,
 112              'log' => logger::EVENT_JOIN,
 113          ];
 114          $accesses = $DB->get_records_select('bigbluebuttonbn_logs', $select, $params, 'id ASC', 'id, meta', 1);
 115          $lastaccess = end($accesses);
 116          if (!empty($lastaccess->meta)) {
 117              $lastaccess = json_decode($lastaccess->meta);
 118              // If the user acceded from Timeline it should be redirected to the Dashboard.
 119              if (isset($lastaccess->origin) && $lastaccess->origin == logger::ORIGIN_TIMELINE) {
 120                  redirect($CFG->wwwroot . '/my/');
 121              }
 122          }
 123          break;
 124      case 'join':
 125          if (empty($bigbluebuttonbn)) {
 126              throw new moodle_exception('view_error_unable_join', 'bigbluebuttonbn');
 127              break;
 128          }
 129          // Check the origin page.
 130          $origin = logger::ORIGIN_BASE;
 131          if ($timeline) {
 132              $origin = logger::ORIGIN_TIMELINE;
 133          } else if ($index) {
 134              $origin = logger::ORIGIN_INDEX;
 135          }
 136  
 137          try {
 138              $url = meeting::join_meeting($instance, $origin);
 139              redirect($url);
 140          } catch (server_not_available_exception $e) {
 141              bigbluebutton_proxy::handle_server_not_available($instance);
 142          }
 143          // We should never reach this point.
 144          break;
 145  
 146      case 'play':
 147          $recording = recording::get_record(['id' => $rid]);
 148          if ($href = $recording->get_remote_playback_url($rtype)) {
 149              logger::log_recording_played_event($instance, $rid);
 150              redirect(urldecode($href));
 151          } else {
 152              notification::add(get_string('recordingurlnotfound', 'mod_bigbluebuttonbn'), notification::ERROR);
 153              redirect($instance->get_view_url());
 154          }
 155          // We should never reach this point.
 156          break;
 157  }
 158  // When we reach this point, we can close the tab or window where BBB was opened.
 159  echo $OUTPUT->header();
 160  // Behat does not like when we close the Windows as it is expecting to locate
 161  // on click part of the pages (bug with selenium raising an exception). So this is a workaround.
 162  if (!defined('BEHAT_SITE_RUNNING')) {
 163      $PAGE->requires->js_call_amd('mod_bigbluebuttonbn/rooms', 'setupWindowAutoClose');
 164  }
 165  echo $OUTPUT->footer();