bigbluebutton-Github/bigbluebutton-html5/imports/api/external-videos/server/methods/initializeExternalVideo.js

import { Meteor } from 'meteor/meteor';
import { check } from 'meteor/check';
import Users from '/imports/api/users';
import Logger from '/imports/startup/server/logger';

const allowFromPresenter = (eventName, { userId }) => {
  const user = Users.findOne({ userId });
  const ret = user && user.presenter;

  Logger.debug('ExternalVideo Streamer auth userid:', userId, ' event: ', eventName, ' suc: ', ret);

  return ret || eventName === 'viewerJoined';
};

export default function initializeExternalVideo(credentials, options) {
  const { meetingId } = credentials;

  check(meetingId, String);

  const streamName = `external-videos-${meetingId}`;
  if (!Meteor.StreamerCentral.instances[streamName]) {
    const streamer = new Meteor.Streamer(streamName);
    streamer.allowRead('all');
    streamer.allowWrite('all');
    streamer.allowEmit(allowFromPresenter);
  } else {
    Logger.debug('External Video streamer is already created for ', streamName);
  }
}