bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/connection-status/service.js
Paulo Lanzarin 3fbe4be441
refactor: adjust inline comment for packet loss metric usage
Adjust an inline comment in connection status' service about packet loss metric
usage.

Now it correctly states that the absolute counter SHOULD NOT be used for
alert triggers.
2024-08-29 15:53:03 -03:00

479 lines
14 KiB
JavaScript

import { defineMessages } from 'react-intl';
import { makeVar } from '@apollo/client';
import Auth from '/imports/ui/services/auth';
import Session from '/imports/ui/services/storage/in-memory';
import { notify } from '/imports/ui/services/notification';
import AudioService from '/imports/ui/components/audio/service';
import ScreenshareService from '/imports/ui/components/screenshare/service';
import VideoService from '/imports/ui/components/video-provider/service';
import connectionStatus from '../../core/graphql/singletons/connectionStatus';
const intlMessages = defineMessages({
saved: {
id: 'app.settings.save-notification.label',
description: 'Label shown in toast when data savings are saved',
},
notification: {
id: 'app.connection-status.notification',
description: 'Label shown in toast when connection loss is detected',
},
});
export const NETWORK_MONITORING_INTERVAL_MS = 2000;
export const lastLevel = makeVar();
let statsTimeout = null;
export const URL_REGEX = new RegExp(/^(http|https):\/\/[^ "]+$/);
export const getHelp = () => {
const STATS = window.meetingClientSettings.public.stats;
if (URL_REGEX.test(STATS.help)) return STATS.help;
return null;
};
export function getStatus(levels, value) {
const sortedLevels = Object.entries(levels)
.map((entry) => [entry[0], Number(entry[1])])
.sort((a, b) => a[1] - b[1]);
for (let i = 0; i < sortedLevels.length; i += 1) {
if (value < sortedLevels[i][1]) {
return i === 0 ? 'normal' : sortedLevels[i - 1][0];
}
if (i === sortedLevels.length - 1) {
return sortedLevels[i][0];
}
}
return sortedLevels[sortedLevels.length - 1][0];
}
export const getStats = () => {
const STATS = window.meetingClientSettings.public.stats;
return STATS.level[lastLevel()];
};
export const handleAudioStatsEvent = (event) => {
const { detail } = event;
if (detail) {
const { loss } = detail;
// The stat provided by this event is the *INBOUND* packet loss fraction
// calculated manually by using the packetsLost and packetsReceived metrics.
// It uses a 5 probe wide window - so roughly a 10 seconds period with a 2
// seconds interval between captures.
//
// This metric is DIFFERENT from the one used in the connection status modal
// (see the network data object in this file). The network data one is an
// absolute counter of INBOUND packets lost - and it *SHOULD NOT* be used to
// determine alert triggers
connectionStatus.setPacketLossStatus(
getStatus(window.meetingClientSettings.public.stats.loss, loss),
);
}
};
export const sortLevel = (a, b) => {
const RTT = window.meetingClientSettings.public.stats.rtt;
if (!a.lastUnstableStatus && !b.lastUnstableStatus) return 0;
if (!a.lastUnstableStatus) return 1;
if (!b.lastUnstableStatus) return -1;
const rttOfA = RTT[a.lastUnstableStatus];
const rttOfB = RTT[b.lastUnstableStatus];
return rttOfB - rttOfA;
};
export const sortOnline = (a, b) => {
if (!a.user.currentlyInMeeting && b.user.currentlyInMeeting) return 1;
if (a.user.currentlyInMeeting === b.user.currentlyInMeeting) return 0;
if (a.user.currentlyInMeeting && !b.user.currentlyInMeeting) return -1;
return 0;
};
export const isEnabled = () => window.meetingClientSettings.public.stats.enabled;
export const getNotified = () => {
const notified = Session.getItem('connectionStatusNotified');
// Since notified can be undefined we need a boolean verification
return notified === true;
};
export const notification = (level, intl) => {
const NOTIFICATION = window.meetingClientSettings.public.stats.notification;
if (!NOTIFICATION[level]) return null;
// Avoid toast spamming
const notified = getNotified();
if (notified) {
return null;
}
Session.setItem('connectionStatusNotified', true);
if (intl) notify(intl.formatMessage(intlMessages.notification), level, 'warning');
return null;
};
/**
* Calculates the jitter buffer average.
* For more information see:
* https://www.w3.org/TR/webrtc-stats/#dom-rtcinboundrtpstreamstats-jitterbufferdelay
* @param {Object} inboundRtpData The RTCInboundRtpStreamStats object retrieved
* in getStats() call.
* @returns The jitter buffer average in ms
*/
export const calculateJitterBufferAverage = (inboundRtpData) => {
if (!inboundRtpData) return 0;
const {
jitterBufferDelay,
jitterBufferEmittedCount,
} = inboundRtpData;
if (!jitterBufferDelay || !jitterBufferEmittedCount) return '--';
return Math.round((jitterBufferDelay / jitterBufferEmittedCount) * 1000);
};
/**
* Given the data returned from getStats(), returns an array containing all the
* the stats of the given type.
* For more information see:
* https://developer.mozilla.org/en-US/docs/Web/API/RTCStatsReport
* and
* https://developer.mozilla.org/en-US/docs/Web/API/RTCStatsType
* @param {Object} data - RTCStatsReport object returned from getStats() API
* @param {String} type - The string type corresponding to RTCStatsType object
* @returns {Array[Object]} An array containing all occurrences of the given
* type in the data Object.
*/
const getDataType = (data, type) => {
if (!data || typeof data !== 'object' || !type) return [];
return Object.values(data).filter((stat) => stat.type === type);
};
/**
* Returns a new Object containing extra parameters calculated from inbound
* data. The input data is also appended in the returned Object.
* @param {Object} currentData - The object returned from getStats / service's
* getNetworkData()
* @returns {Object} the currentData object with the extra inbound network
* added to it.
*/
export const addExtraInboundNetworkParameters = (data) => {
if (!data) return data;
const inboundRtpData = getDataType(data, 'inbound-rtp')[0];
if (!inboundRtpData) return data;
const extraParameters = {
jitterBufferAverage: calculateJitterBufferAverage(inboundRtpData),
packetsLost: inboundRtpData.packetsLost,
};
return Object.assign(inboundRtpData, extraParameters);
};
/**
* Retrieves the inbound and outbound data using WebRTC getStats API, for audio.
* @returns An Object with format (property:type) :
* {
* transportStats: Object,
* inbound-rtp: RTCInboundRtpStreamStats,
* outbound-rtp: RTCOutboundRtpStreamStats,
* }
* For more information see:
* https://www.w3.org/TR/webrtc-stats/#dom-rtcinboundrtpstreamstats
* and
* https://www.w3.org/TR/webrtc-stats/#dom-rtcoutboundrtpstreamstats
*/
export const getAudioData = async () => {
const data = await AudioService.getStats();
if (!data) return {};
addExtraInboundNetworkParameters(data);
return data;
};
/**
* Retrieves the inbound and outbound data using WebRTC getStats API, for video.
* The video stats contains the stats about all video peers (cameras) and
* for screenshare peer appended into one single object, containing the id
* of the peers with it's stats information.
* @returns An Object containing video data for all video peers and screenshare
* peer
*/
export const getVideoData = async () => {
const camerasData = await VideoService.getStats() || {};
const screenshareData = await ScreenshareService.getStats() || {};
return {
...camerasData,
...screenshareData,
};
};
/**
* Get the user, audio and video data from current active streams.
* For audio, this will get information about the mic/listen-only stream.
* @returns An Object containing all this data.
*/
export const getNetworkData = async () => {
const audio = await getAudioData();
const video = await getVideoData();
const user = {
time: new Date(),
username: Auth.username,
meeting_name: Auth.confname,
meeting_id: Auth.meetingID,
connection_id: Auth.connectionID,
user_id: Auth.userID,
extern_user_id: Auth.externUserID,
};
const fullData = {
user,
audio,
video,
};
return fullData;
};
/**
* Calculates both upload and download rates using data retrieved from getStats
* API. For upload (outbound-rtp) we use both bytesSent and timestamp fields.
* byteSent field contains the number of octets sent at the given timestamp,
* more information can be found in:
* https://www.w3.org/TR/webrtc-stats/#dom-rtcsentrtpstreamstats-bytessent
*
* timestamp is given in millisseconds, more information can be found in:
* https://www.w3.org/TR/webrtc-stats/#webidl-1049090475
* @param {Object} currentData - The object returned from getStats / service's
* getNetworkData()
* @param {Object} previousData - The same object as above, but representing
* a data collected in past (previous call of
* service's getNetworkData())
* @returns An object of numbers, containing both outbound (upload) and inbound
* (download) rates (kbps).
*/
export const calculateBitsPerSecond = (currentData, previousData) => {
const result = {
outbound: 0,
inbound: 0,
};
if (!currentData || !previousData) return result;
const currentOutboundData = getDataType(currentData, 'outbound-rtp')[0];
const currentInboundData = getDataType(currentData, 'inbound-rtp')[0];
const previousOutboundData = getDataType(previousData, 'outbound-rtp')[0];
const previousInboundData = getDataType(previousData, 'inbound-rtp')[0];
if (currentOutboundData && previousOutboundData) {
const {
bytesSent: outboundBytesSent,
timestamp: outboundTimestamp,
} = currentOutboundData;
let {
headerBytesSent: outboundHeaderBytesSent,
} = currentOutboundData;
if (!outboundHeaderBytesSent) outboundHeaderBytesSent = 0;
const {
bytesSent: previousOutboundBytesSent,
timestamp: previousOutboundTimestamp,
} = previousOutboundData;
let {
headerBytesSent: previousOutboundHeaderBytesSent,
} = previousOutboundData;
if (!previousOutboundHeaderBytesSent) previousOutboundHeaderBytesSent = 0;
const outboundBytesPerSecond = (outboundBytesSent + outboundHeaderBytesSent
- previousOutboundBytesSent - previousOutboundHeaderBytesSent)
/ (outboundTimestamp - previousOutboundTimestamp);
result.outbound = Math.round((outboundBytesPerSecond * 8 * 1000) / 1024);
}
if (currentInboundData && previousInboundData) {
const {
bytesReceived: inboundBytesReceived,
timestamp: inboundTimestamp,
} = currentInboundData;
let {
headerBytesReceived: inboundHeaderBytesReceived,
} = currentInboundData;
if (!inboundHeaderBytesReceived) inboundHeaderBytesReceived = 0;
const {
bytesReceived: previousInboundBytesReceived,
timestamp: previousInboundTimestamp,
} = previousInboundData;
let {
headerBytesReceived: previousInboundHeaderBytesReceived,
} = previousInboundData;
if (!previousInboundHeaderBytesReceived) {
previousInboundHeaderBytesReceived = 0;
}
const inboundBytesPerSecond = (inboundBytesReceived
+ inboundHeaderBytesReceived - previousInboundBytesReceived
- previousInboundHeaderBytesReceived) / (inboundTimestamp
- previousInboundTimestamp);
result.inbound = Math.round((inboundBytesPerSecond * 8 * 1000) / 1024);
}
return result;
};
/**
* Similar to calculateBitsPerSecond, but it receives stats from multiple
* peers. The total inbound/outbound is the sum of all peers.
* @param {Object} currentData - The Object returned from
* getStats / service's getNetworkData()
* @param {Object} previousData - The same object as above, but
* representing a data collected in past
* (previous call of service's getNetworkData())
*/
export const calculateBitsPerSecondFromMultipleData = (currentData, previousData) => {
const result = {
outbound: 0,
inbound: 0,
};
if (!currentData || !previousData) return result;
Object.keys(currentData).forEach((peerId) => {
if (previousData[peerId]) {
const {
outbound: peerOutbound,
inbound: peerInbound,
} = calculateBitsPerSecond(currentData[peerId], previousData[peerId]);
result.outbound += peerOutbound;
result.inbound += peerInbound;
}
});
return result;
};
const sortConnectionData = (connectionData) => connectionData.sort(sortLevel).sort(sortOnline);
/**
* Start monitoring the network data.
* @return {Promise} A Promise that resolves when process started.
*/
export async function startMonitoringNetwork() {
let previousData = await getNetworkData();
setInterval(async () => {
const data = await getNetworkData();
const {
outbound: audioCurrentUploadRate,
inbound: audioCurrentDownloadRate,
} = calculateBitsPerSecond(data.audio, previousData.audio);
const inboundRtp = getDataType(data.audio, 'inbound-rtp')[0];
const jitter = inboundRtp
? inboundRtp.jitterBufferAverage
: 0;
const packetsLost = inboundRtp
? inboundRtp.packetsLost
: 0;
const audio = {
audioCurrentUploadRate,
audioCurrentDownloadRate,
jitter,
packetsLost,
transportStats: data.audio.transportStats,
};
const {
outbound: videoCurrentUploadRate,
inbound: videoCurrentDownloadRate,
} = calculateBitsPerSecondFromMultipleData(data.video,
previousData.video);
const video = {
videoCurrentUploadRate,
videoCurrentDownloadRate,
};
const { user } = data;
const networkData = {
user,
audio,
video,
};
previousData = data;
connectionStatus.setNetworkData(networkData);
}, NETWORK_MONITORING_INTERVAL_MS);
}
export function getWorstStatus(statuses) {
const statusOrder = {
normal: 0,
warning: 1,
danger: 2,
critical: 3,
};
let worstStatus = 'normal';
// eslint-disable-next-line
for (let status of statuses) {
if (statusOrder[status] > statusOrder[worstStatus]) {
worstStatus = status;
}
}
return worstStatus;
}
export default {
getStats,
getHelp,
isEnabled,
notification,
getNetworkData,
calculateBitsPerSecond,
calculateBitsPerSecondFromMultipleData,
getDataType,
sortConnectionData,
startMonitoringNetwork,
getStatus,
getWorstStatus,
};