Add ping-pong message to html5 client

bigbluebutton-html5/imports/api/ping-pong/index.js

@@ -0,0 +1,5 @@
+import { Meteor } from 'meteor/meteor';
+
+const PingPong = new Mongo.Collection('ping-pong');
+
+export default PingPong;

bigbluebutton-html5/imports/api/ping-pong/server/index.js

@@ -0,0 +1,2 @@
+import './publishers';
+import './methods';

bigbluebutton-html5/imports/api/ping-pong/server/methods.js

@@ -0,0 +1,6 @@
+import { Meteor } from 'meteor/meteor';
+import ping from './methods/ping';
+
+Meteor.methods({
+  ping,
+});

bigbluebutton-html5/imports/api/ping-pong/server/methods/ping.js

@@ -0,0 +1,21 @@
+import { Meteor } from 'meteor/meteor';
+import { check } from 'meteor/check';
+import Users from '/imports/api/users';
+
+export default function ping(credentials) {
+  const { meetingId, requesterUserId, requesterToken } = credentials;
+
+  check(meetingId, String);
+  check(requesterUserId, String);
+  check(requesterToken, String);
+
+
+  return Users.upsert({
+    meetingId,
+    userId: requesterUserId,
+  }, {
+    $set: {
+      lastPing: Date.now(),
+    },
+  });
+}

bigbluebutton-html5/imports/api/ping-pong/server/publishers.js

@@ -0,0 +1,33 @@
+import { Meteor } from 'meteor/meteor';
+import Logger from '/imports/startup/server/logger';
+import _ from 'lodash';
+
+const COLLECTION_NAME = 'ping-pong';
+const POLL_INTERVAL = 5000;
+
+function pingPong(credentials) {
+  const { meetingId, requesterUserId } = credentials;
+  const id = _.uniqueId('pong-');
+  Logger.info(`Starting ping-pong publish for userId: ${requesterUserId}`);
+  const pongSender = (interval) => {
+    const payload = {
+      pong: {
+        message: 'pong',
+        time: Date.now(),
+        meetingId,
+      },
+    };
+    let fn = this.added.bind(this);
+    if (interval) fn = this.changed.bind(this);
+    fn(COLLECTION_NAME, id, payload);
+  };
+  pongSender();
+  this.ready();
+  const interval = Meteor.setInterval(() => pongSender(true), POLL_INTERVAL);
+
+  this.onStop(() => {
+    Meteor.clearInterval(interval);
+  });
+}
+
+Meteor.publish('ping-pong', pingPong);

bigbluebutton-html5/imports/api/users/server/handlers/validateAuthToken.js

@@ -1,7 +1,7 @@
 import { check } from 'meteor/check';
 import Logger from '/imports/startup/server/logger';
 import Users from '/imports/api/users';
-
+import setConnectionStatus from '/imports/api/users/server/modifiers/setConnectionStatus';
 import userJoin from '../methods/userJoin';
 
 const clearOtherSessions = (sessionUserId, current = false) => {
@@ -54,6 +54,7 @@ export default function handleValidateAuthToken({ body }, meetingId) {
       if (valid) {
         const sessionUserId = `${meetingId}-${userId}`;
         const currentConnectionId = User.connectionId ? User.connectionId : false;
+        setConnectionStatus(meetingId, userId);
         clearOtherSessions(sessionUserId, currentConnectionId);
       }
 

bigbluebutton-html5/imports/api/users/server/methods/userLeaving.js

@@ -3,6 +3,7 @@ import { check } from 'meteor/check';
 import RedisPubSub from '/imports/startup/server/redis';
 import Logger from '/imports/startup/server/logger';
 import Users from '/imports/api/users';
+import setConnectionStatus from '/imports/api/users/server/modifiers/setConnectionStatus';
 
 export default function userLeaving(credentials, userId, connectionId) {
   const REDIS_CONFIG = Meteor.settings.private.redis;
@@ -37,6 +38,6 @@ export default function userLeaving(credentials, userId, connectionId) {
   };
 
   Logger.info(`User '${userId}' is leaving meeting '${meetingId}'`);
-
+  setConnectionStatus(meetingId, userId, 'offline');
   return RedisPubSub.publishUserMessage(CHANNEL, EVENT_NAME, meetingId, requesterUserId, payload);
 }

bigbluebutton-html5/imports/api/users/server/publishers.js

@@ -70,6 +70,7 @@ function users(credentials, isModerator = false) {
   const options = {
     fields: {
       authToken: false,
+      lastPing: false,
     },
   };
 

bigbluebutton-html5/imports/startup/client/base.jsx

@@ -88,7 +88,6 @@ class Base extends Component {
       meteorIsConnected,
       subscriptionsReady,
     } = this.props;
-
     const {
       loading,
       meetingExisted,

bigbluebutton-html5/imports/startup/server/index.js

@@ -1,16 +1,17 @@
 import { Meteor } from 'meteor/meteor';
 import { WebAppInternals } from 'meteor/webapp';
 import Langmap from 'langmap';
-import Users from '/imports/api/users';
 import fs from 'fs';
+import Users from '/imports/api/users';
 import './settings';
 import { lookup as lookupUserAgent } from 'useragent';
 import Logger from './logger';
 import Redis from './redis';
 import setMinBrowserVersions from './minBrowserVersion';
+import userLeaving from '/imports/api/users/server/methods/userLeaving';
 
 const parse = Npm.require('url').parse;
-
+const INTERVAL_TIME = 10000;
 const AVAILABLE_LOCALES = fs.readdirSync('assets/app/locales');
 
 Meteor.startup(() => {
@@ -43,6 +44,28 @@ Meteor.startup(() => {
 
   setMinBrowserVersions();
 
+  Meteor.setInterval(() => {
+    const currentTime = Date.now();
+    Logger.info('Checking for inactive users');
+    const users = Users.find({
+      connectionStatus: 'online',
+      lastPing: {
+        $lt: (currentTime - INTERVAL_TIME), // get user who has not pinged in the last 10 seconds
+      },
+    }).fetch();
+    if (!users.length) return Logger.info('No inactive users');
+    Logger.info('Removing inactive users');
+    users.forEach((user) => {
+      const loginTimeSec = (currentTime - user.loginTime) / 1000;
+      const lastPingSec = (currentTime - user.lastPing) / 1000;
+      user.requesterUserId = user.userId;
+      return loginTimeSec >= 10
+      && lastPingSec >= 10
+      && userLeaving(user, user.userId, user.connectionId);
+    });
+    return Logger.info('All inactive user have been removed');
+  }, INTERVAL_TIME);
+
   Logger.warn(`SERVER STARTED.\nENV=${env},\nnodejs version=${process.version}\nCDN=${CDN_URL}\n`, APP_CONFIG);
 });
 

bigbluebutton-html5/imports/ui/components/app/component.jsx

@@ -18,6 +18,8 @@ import ChatAlertContainer from '../chat/alert/container';
 import BannerBarContainer from '/imports/ui/components/banner-bar/container';
 import WaitingNotifierContainer from '/imports/ui/components/waiting-users/alert/container';
 import LockNotifier from '/imports/ui/components/lock-viewers/notify/container';
+import PingPongContainer from '/imports/ui/components/ping-pong/container';
+
 import MediaService from '/imports/ui/components/media/service';
 import ManyWebcamsNotifier from '/imports/ui/components/video-provider/many-users-notify/container';
 import { styles } from './styles';
@@ -96,7 +98,6 @@ const isLayeredView = window.matchMedia(`(max-width: ${LAYERED_BREAKPOINT}px)`);
 class App extends Component {
   constructor() {
     super();
-
     this.state = {
       enableResize: !window.matchMedia(MOBILE_MEDIA).matches,
     };
@@ -344,6 +345,7 @@ class App extends Component {
         <ChatAlertContainer />
         <WaitingNotifierContainer />
         <LockNotifier />
+        <PingPongContainer />
         <ManyWebcamsNotifier />
         {customStyleUrl ? <link rel="stylesheet" type="text/css" href={customStyleUrl} /> : null}
         {customStyle ? <link rel="stylesheet" type="text/css" href={`data:text/css;charset=UTF-8,${encodeURIComponent(customStyle)}`} /> : null}

bigbluebutton-html5/imports/ui/components/ping-pong/container.jsx

@@ -0,0 +1,22 @@
+import React from 'react';
+import { withTracker } from 'meteor/react-meteor-data';
+import PingPong from '/imports/api/ping-pong';
+import { makeCall } from '/imports/ui/services/api';
+
+class PlaceHolderComponent extends React.Component {
+  shouldComponentUpdate() {
+    return false;
+  }
+
+  render() {
+    return null;
+  }
+}
+
+export default withTracker(() => {
+  PingPong.find({}).observe({
+    added: () => makeCall('ping'),
+    changed: () => makeCall('ping'),
+  });
+  return {};
+})(PlaceHolderComponent);

bigbluebutton-html5/imports/ui/components/subscriptions/component.jsx

@@ -16,7 +16,7 @@ const SUBSCRIPTIONS = [
   'users', 'meetings', 'polls', 'presentations', 'slides', 'captions',
   'voiceUsers', 'whiteboard-multi-user', 'screenshare', 'group-chat',
   'presentation-pods', 'users-settings', 'guestUser', 'users-infos', 'note',
-  'network-information',
+  'network-information', 'ping-pong',
 ];
 
 class Subscriptions extends React.Component {
@@ -41,6 +41,7 @@ export default withTracker(() => {
       subscriptionsReady: true,
     };
   }
+
   const subscriptionErrorHandler = {
     onError: (error) => {
       logger.error({ logCode: 'startup_client_subscription_error' }, error);

bigbluebutton-html5/server/main.js

@@ -24,6 +24,7 @@ import '/imports/api/users-infos/server';
 import '/imports/api/note/server';
 import '/imports/api/external-videos/server';
 import '/imports/api/guest-users/server';
+import '/imports/api/ping-pong/server';
 
 
 // Commons