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- <?php
- /**
- * This script initiates a videoconference session, calling the BigBlueButton API
- * @package chamilo.plugin.bigbluebutton
- */
- /**
- * Initialization
- */
- require_once '../../main/inc/global.inc.php';
- require_once 'bbb.lib.php';
- //The script receives the course_code (cidReq), which allows it to get the corresponding data
- $cid = api_get_real_course_id();
- $ccode = api_get_course_id();
- // initialize conference settings from course settings
- $meeting_name = api_get_course_setting('big_blue_button_meeting_name',$ccode);
- if (empty($meeting_name) or $meeting_name==-1) { $meeting_name = $ccode; }
- $meeting_att_pw = api_get_course_setting('big_blue_button_meeting_attendee_pw',$ccode);
- if (empty($meeting_att_pw) or $meeting_att_pw==-1) { $meeting_att_pw = $ccode; }
- $meeting_mod_pw = api_get_course_setting('big_blue_button_meeting_moderator_pw',$ccode);
- if (empty($meeting_mod_pw) or $meeting_mod_pw==-1) { $meeting_mod_pw = $ccode.'mod'; }
- $meeting_wel_ms = api_get_course_setting('big_blue_button_meeting_welcome_message',$ccode);
- if (empty($meeting_wel_ms) or $meeting_wel_ms==-1) { $meeting_wel_ms = ''; }
- // initialize video server settings from global settings
- $settings = api_get_settings('Extra','list',api_get_current_access_url_id());
- $bbb_settings = array();
- foreach ($settings as $setting) {
- if (substr($setting['variable'],0,4)==='bbb_') {
- $bbb_settings[$setting['variable']] = $setting['selected_value'];
- }
- }
- $bbb_plugin = $bbb_settings['bbb_plugin'] === 'true';
- $bbb_host = $bbb_settings['bbb_plugin_host'];
- $bbb_salt = $bbb_settings['bbb_plugin_salt'];
- if (!$bbb_plugin) {
- //the BigBlueButton plugin is not enabled (strangely), return to course homepage
- header('location: '.api_get_path(WEB_COURSE_PATH).'/'.$ccode);
- }
- $teacher = api_is_course_admin() || api_is_coach() || api_is_platform_admin();
- $user_info = api_get_user_info(api_get_user_id());
- $full_user_name = api_get_person_name($user_info['firstname'],$user_info['lastname']);
- $user_id = api_get_user_id();
- $is_running = wc_isMeetingRunning($bbb_host,$bbb_salt,$meeting_name);
- if ($is_running == 'true') {
- // The conference is running, everything is fine, join
- header('location: '.wc_joinMeetingURL($bbb_host,$bbb_salt,$full_user_name,$meeting_name,($teacher?$meeting_mod_pw:$meeting_att_pw),$user_id));
- exit;
- } else { //$is_running = false or 'false'
- // The conference room does not seem to be running...
- // First, try harder and ignore the "running" status
- $meetings = wc_getRunningMeetings($bbb_host,$bbb_salt);
- $found = false;
- foreach ($meetings as $meeting) {
- //Try to find our meeting room in the list...
- if ($meeting['meetingID'] == $meeting_name) {
- $meeting_info = wc_getMeetingInfo($bbb_host,$bbb_salt,$meeting_name,$meeting_mod_pw);
- error_log('Found passive meeting created '.($meeting_info['createTime']).' seconds ago with '.count($meeting_info['attendees']).' attendees - joining as '.($teacher?'teacher':'student'));
- //if the user is a teacher, or if there are already attendees in
- // the conference room, then allow joining it
- if ($teacher or count($meeting_info['attendees'])>0) {
- header('location: '.wc_joinMeetingURL($bbb_host,$bbb_salt,$full_user_name,$meeting_name,($teacher?$meeting_mod_pw:$meeting_att_pw),$user_id));
- exit;
- }
- }
- }
- // That conference room is really not running or it has no
- // accompanying moderator subscribed
- if ($teacher) {
- // The user is a teacher, so he has the right to create the
- // room, so create it and join it
- wc_createMeeting($bbb_host,$bbb_salt,$meeting_name,$meeting_name,$meeting_att_pw,$meeting_mod_pw,$meeting_wel_ms,api_get_path(WEB_COURSE_PATH).'/'.$ccode);
- header('location: '.wc_joinMeetingURL($bbb_host,$bbb_salt,$full_user_name,$meeting_name,($teacher?$meeting_mod_pw:$meeting_att_pw),$user_id));
- exit;
- } else {
- // There is no conference room for this course and the user
- // is a mere student, so he cannot start a conference room by
- // himself: a teacher has to launch it first
- header('location: '.api_get_path(WEB_COURSE_PATH).'/'.$ccode);
- exit;
- }
- }
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