initial commit
This commit is contained in:
Antoine Ouvrard
Vendored
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/* global ga */
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(function(ctx) {
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/**
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*
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*/
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function Analytics(options) {
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/* eslint-disable */
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if (!options.googleAnalyticsTrackingId) {
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console.log(
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'Failed to initialize Google Analytics handler, no tracking ID');
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return;
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}
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/**
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* Google Analytics
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* TODO: Keep this local, there's no need to add it to window.
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*/
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(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
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})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
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ga('create', options.googleAnalyticsTrackingId, 'auto');
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ga('send', 'pageview');
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/* eslint-enable */
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}
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/**
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* Extracts the integer to use for a Google Analytics event's value field
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* from a lib-jitsi-meet analytics event.
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* @param {Object} event - The lib-jitsi-meet analytics event.
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* @returns {Object} - The integer to use for the 'value' of a Google
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* Analytics event.
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* @private
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*/
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Analytics.prototype._extractAction = function(event) {
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// Page events have a single 'name' field.
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if (event.type === 'page') {
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return event.name;
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}
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// All other events have action, actionSubject, and source fields. All
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// three fields are required, and the often jitsi-meet and
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// lib-jitsi-meet use the same value when separate values are not
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// necessary (i.e. event.action == event.actionSubject).
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// Here we concatenate these three fields, but avoid adding the same
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// value twice, because it would only make the GA event's action harder
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// to read.
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let action = event.action;
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if (event.actionSubject && event.actionSubject !== event.action) {
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// Intentionally use string concatenation as analytics needs to
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// work on IE but this file does not go through babel. For some
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// reason disabling this globally for the file does not have an
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// effect.
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// eslint-disable-next-line prefer-template
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action = event.actionSubject + '.' + action;
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}
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if (event.source && event.source !== event.action
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&& event.source !== event.action) {
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// eslint-disable-next-line prefer-template
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action = event.source + '.' + action;
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}
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return action;
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};
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/**
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* Extracts the integer to use for a Google Analytics event's value field
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* from a lib-jitsi-meet analytics event.
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* @param {Object} event - The lib-jitsi-meet analytics event.
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* @returns {Object} - The integer to use for the 'value' of a Google
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* Analytics event, or NaN if the lib-jitsi-meet event doesn't contain a
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* suitable value.
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* @private
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*/
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Analytics.prototype._extractValue = function(event) {
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let value = event && event.attributes && event.attributes.value;
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// Try to extract an integer from the "value" attribute.
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value = Math.round(parseFloat(value));
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return value;
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};
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/**
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* Extracts the string to use for a Google Analytics event's label field
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* from a lib-jitsi-meet analytics event.
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* @param {Object} event - The lib-jitsi-meet analytics event.
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* @returns {string} - The string to use for the 'label' of a Google
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* Analytics event.
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* @private
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*/
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Analytics.prototype._extractLabel = function(event) {
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let label = '';
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// The label field is limited to 500B. We will concatenate all
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// attributes of the event, except the user agent because it may be
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// lengthy and is probably included from elsewhere.
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for (const property in event.attributes) {
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if (property !== 'permanent_user_agent'
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&& property !== 'permanent_callstats_name'
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&& event.attributes.hasOwnProperty(property)) {
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// eslint-disable-next-line prefer-template
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label += property + '=' + event.attributes[property] + '&';
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}
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}
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if (label.length > 0) {
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label = label.slice(0, -1);
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}
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return label;
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};
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/**
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* This is the entry point of the API. The function sends an event to
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* google analytics. The format of the event is described in
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* AnalyticsAdapter in lib-jitsi-meet.
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* @param {Object} event - the event in the format specified by
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* lib-jitsi-meet.
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*/
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Analytics.prototype.sendEvent = function(event) {
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if (!event || !ga) {
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return;
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}
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const ignoredEvents
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= [ 'e2e_rtt', 'rtp.stats', 'rtt.by.region', 'available.device',
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'stream.switch.delay', 'ice.state.changed', 'ice.duration' ];
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// Temporary removing some of the events that are too noisy.
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if (ignoredEvents.indexOf(event.action) !== -1) {
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return;
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}
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const gaEvent = {
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'eventCategory': 'jitsi-meet',
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'eventAction': this._extractAction(event),
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'eventLabel': this._extractLabel(event)
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};
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const value = this._extractValue(event);
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if (!isNaN(value)) {
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gaEvent.eventValue = value;
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}
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ga('send', 'event', gaEvent);
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};
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if (typeof ctx.JitsiMeetJS === 'undefined') {
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ctx.JitsiMeetJS = {};
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}
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if (typeof ctx.JitsiMeetJS.app === 'undefined') {
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ctx.JitsiMeetJS.app = {};
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}
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if (typeof ctx.JitsiMeetJS.app.analyticsHandlers === 'undefined') {
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ctx.JitsiMeetJS.app.analyticsHandlers = [];
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}
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ctx.JitsiMeetJS.app.analyticsHandlers.push(Analytics);
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})(window);
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/* eslint-enable prefer-template */
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Vendored
+2
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!function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="/libs/",n(n.s=0)}([function(e,t,n){"use strict";n.r(t);const r=(window.JitsiMeetJS||(window.JitsiMeetJS={}),window.JitsiMeetJS.app||(window.JitsiMeetJS.app={}),window.JitsiMeetJS.app);r.analyticsHandlers=r.analyticsHandlers||[],r.analyticsHandlers.push(class extends class{constructor(e={}){this._enabled=!1,this._whiteListedEvents=e.whiteListedEvents,this._blackListedEvents=[...e.blackListedEvents||[],"e2e_rtt","rtp.stats","rtt.by.region","available.device","stream.switch.delay","ice.state.changed","ice.duration","peer.conn.status.duration"]}_extractName(e){if("page"===e.type)return e.name;const{action:t,actionSubject:n,source:r}=e;let i=t;return n&&n!==t&&(i=`${n}.${t}`),r&&r!==t&&(i=`${r}.${i}`),i}_shouldIgnore(e){if(!e||!this._enabled)return!0;const t=this._extractName(e);return Array.isArray(this._whiteListedEvents)?-1===this._whiteListedEvents.indexOf(t):!!Array.isArray(this._blackListedEvents)&&-1!==this._blackListedEvents.indexOf(t)}}{constructor(e){if(super(e),this._userProperties={},!e.googleAnalyticsTrackingId)throw new Error("Failed to initialize Google Analytics handler, no tracking ID");this._enabled=!0,this._initGoogleAnalytics(e)}_initGoogleAnalytics(e){var t,n,r,i,a,s;t=window,n=document,r="script",i="ga",t.GoogleAnalyticsObject=i,t.ga=t.ga||function(){(t.ga.q=t.ga.q||[]).push(arguments)},t.ga.l=1*new Date,a=n.createElement(r),s=n.getElementsByTagName(r)[0],a.async=1,a.src="//www.google-analytics.com/analytics.js",s.parentNode.insertBefore(a,s),ga("create",e.googleAnalyticsTrackingId,"auto"),ga("send","pageview")}_extractValue(e){let t=e&&e.attributes&&e.attributes.value;return t=Math.round(parseFloat(t)),t}_extractLabel(e){const{attributes:t={}}=e,n=Object.keys(t).map(e=>`${e}=${t[e]}`);return n.push(this._userPropertiesString),n.join("&")}setUserProperties(e={}){if(!this._enabled)return;const t=["user_agent","callstats_name"];this._userPropertiesString=Object.keys(e).filter(e=>-1===t.indexOf(e)).map(t=>`permanent_${t}=${e[t]}`).join("&")}sendEvent(e){if(this._shouldIgnore(e))return;const t={eventCategory:"jitsi-meet",eventAction:this._extractName(e),eventLabel:this._extractLabel(e)},n=this._extractValue(e);isNaN(n)||(t.eventValue=n),ga("send","event",t)}})}]);
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//# sourceMappingURL=analytics-ga.min.map
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+225
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{
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"safari": [
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{"version": "10.2" },
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{
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"capabilities": {
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"audioIn": true,
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"audioOut": true,
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"videoIn": false,
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"videoOut": false,
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"screenSharing": false
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},
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"iframeCapabilities": {
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"isSupported": false
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}
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||||
}
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],
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"chrome":
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[
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{"version": "51" },
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{
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||||
"capabilities": {
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||||
"audioIn": true,
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"audioOut": true,
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"videoIn": true,
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"videoOut": true,
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"screenSharing": true
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}
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}
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],
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||||
"opera":
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||||
[
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{"version": "22" },
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||||
{
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||||
"capabilities": {
|
||||
"audioIn": true,
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||||
"audioOut": true,
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"videoIn": true,
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||||
"videoOut": true,
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"screenSharing": false
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||||
}
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||||
}
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||||
],
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||||
"firefox": [
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{"version": "52.4" },
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||||
{
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||||
"capabilities": {
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||||
"audioIn": true,
|
||||
"audioOut": true,
|
||||
"videoIn": true,
|
||||
"videoOut": true,
|
||||
"screenSharing": true
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||||
}
|
||||
}
|
||||
],
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||||
"edge": [
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||||
{
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||||
"capabilities": {
|
||||
"audioIn": true,
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"audioOut": true,
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||||
"videoIn": true,
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||||
"videoOut": true,
|
||||
"screenSharing": false
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||||
}
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||||
}
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||||
],
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||||
"nwjs": [
|
||||
{
|
||||
"capabilities": {
|
||||
"audioIn": true,
|
||||
"audioOut": true,
|
||||
"videoIn": true,
|
||||
"videoOut": true,
|
||||
"screenSharing": true
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||||
}
|
||||
}
|
||||
],
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||||
"electron": [
|
||||
{
|
||||
"capabilities": {
|
||||
"audioIn": true,
|
||||
"audioOut": true,
|
||||
"videoIn": true,
|
||||
"videoOut": true,
|
||||
"screenSharing": true
|
||||
}
|
||||
}
|
||||
],
|
||||
"react-native": [
|
||||
{
|
||||
"capabilities": {
|
||||
"audioIn": true,
|
||||
"audioOut": true,
|
||||
"videoIn": true,
|
||||
"videoOut": true,
|
||||
"screenSharing": false
|
||||
}
|
||||
}
|
||||
]
|
||||
}
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Vendored
+2
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!function(e){var t={};function r(n){if(t[n])return t[n].exports;var o=t[n]={i:n,l:!1,exports:{}};return e[n].call(o.exports,o,o.exports,r),o.l=!0,o.exports}r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)r.d(n,o,function(t){return e[t]}.bind(null,o));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="/libs/",r(r.s=0)}([function(e,t){}]);
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//# sourceMappingURL=close3.min.map
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@@ -0,0 +1 @@
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|
||||
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+41
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+2
@@ -0,0 +1,2 @@
|
||||
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||||
//# sourceMappingURL=do_external_connect.min.map
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||||
File diff suppressed because one or more lines are too long
Vendored
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File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
@@ -0,0 +1,67 @@
|
||||
/**
|
||||
* Requests the given webservice that will create the connection and will return
|
||||
* the necessary details(rid, sid and jid) to attach to this connection and
|
||||
* start using it. This script can be used for optimizing the connection startup
|
||||
* time. The function will send AJAX request to a webservice that should
|
||||
* create the bosh session much faster than the client because the webservice
|
||||
* can be started on the same machine as the XMPP serever.
|
||||
*
|
||||
* NOTE: It's vert important to execute this function as early as you can for
|
||||
* optimal results.
|
||||
*
|
||||
* @param webserviceUrl the url for the web service that is going to create the
|
||||
* connection.
|
||||
* @param successCallback callback function called with the result of the AJAX
|
||||
* request if the request was successfull. The callback will receive one
|
||||
* parameter which will be JS Object with properties - rid, sid and jid. This
|
||||
* result should be passed to JitsiConnection.attach method in order to use that
|
||||
* connection.
|
||||
* @param error_callback callback function called the AJAX request fail. This
|
||||
* callback is going to receive one parameter which is going to be JS error
|
||||
* object with a reason for failure in it.
|
||||
*/
|
||||
function createConnectionExternally( // eslint-disable-line no-unused-vars
|
||||
webserviceUrl,
|
||||
successCallback,
|
||||
error_callback) {
|
||||
if (!window.XMLHttpRequest) {
|
||||
error_callback(new Error('XMLHttpRequest is not supported!'));
|
||||
return;
|
||||
}
|
||||
|
||||
var HTTP_STATUS_OK = 200;
|
||||
|
||||
var xhttp = new XMLHttpRequest();
|
||||
|
||||
xhttp.onreadystatechange = function() {
|
||||
if (xhttp.readyState == xhttp.DONE) {
|
||||
var now = window.connectionTimes['external_connect.done']
|
||||
= window.performance.now();
|
||||
console.log('(TIME) external connect XHR done:\t', now);
|
||||
if (xhttp.status == HTTP_STATUS_OK) {
|
||||
try {
|
||||
var data = JSON.parse(xhttp.responseText);
|
||||
successCallback(data);
|
||||
} catch (e) {
|
||||
error_callback(e);
|
||||
}
|
||||
} else {
|
||||
error_callback(new Error('XMLHttpRequest error. Status: '
|
||||
+ xhttp.status + '. Error message: ' + xhttp.statusText));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
xhttp.open('GET', webserviceUrl, true);
|
||||
|
||||
// Fixes external connect for IE
|
||||
// The timeout property may be set only after calling the open() method
|
||||
// and before calling the send() method.
|
||||
xhttp.timeout = 3000;
|
||||
|
||||
window.connectionTimes = {};
|
||||
var now = window.connectionTimes['external_connect.sending']
|
||||
= window.performance.now();
|
||||
console.log('(TIME) Sending external connect XHR:\t', now);
|
||||
xhttp.send();
|
||||
}
|
||||
+2
@@ -0,0 +1,2 @@
|
||||
!function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="/libs/",n(n.s=0)}([function(e,t,n){"use strict";n.r(t);function r(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}self.FLAC_SCRIPT_LOCATION="/libs/",importScripts("/libs/libflac4-1.3.2.min.js");const i={0:"FLAC__STREAM_ENCODER_OK",1:"FLAC__STREAM_ENCODER_UNINITIALIZED",2:"FLAC__STREAM_ENCODER_OGG_ERROR",3:"FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR",4:"FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA",5:"FLAC__STREAM_ENCODER_CLIENT_ERROR",6:"FLAC__STREAM_ENCODER_IO_ERROR",7:"FLAC__STREAM_ENCODER_FRAMING_ERROR",8:"FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR"},o=Object.freeze({UNINTIALIZED:"uninitialized",WORKING:"working",FINISHED:"finished"});class a{constructor(e,t=16,n=4096){if(r(this,"_encoderId",0),r(this,"_flacBuffers",[]),r(this,"_flacLength",0),r(this,"_state",o.UNINTIALIZED),r(this,"_data",null),r(this,"_onMetadataAvailable",()=>{}),!Flac.isReady())throw new Error("libflac is not ready yet!");if(this._sampleRate=e,this._bitDepth=t,this._bufferSize=n,this._encoderId=Flac.init_libflac_encoder(this._sampleRate,1,this._bitDepth,5,0,!0,0),0===this._encoderId)throw new Error("Failed to create libflac encoder.");if(0!==Flac.init_encoder_stream(this._encoderId,this._onEncodedData.bind(this),this._onMetadataAvailable.bind(this)))throw new Error("Failed to initalise libflac encoder.");this._state=o.WORKING}encode(e){if(this._state!==o.WORKING)throw new Error("Encoder is not ready or has finished.");if(!Flac.isReady())throw new Error("Flac not ready");const t=e.length,n=new Int32Array(t),r=new DataView(n.buffer);let a=0;for(let n=0;n<t;n++)r.setInt32(a,32767*e[n],!0),a+=4;if(1!==Flac.FLAC__stream_encoder_process_interleaved(this._encoderId,n,n.length)){const e=Flac.FLAC__stream_encoder_get_state(this._encoderId);console.error("Error during encoding",i[e])}}finish(){if(this._state===o.WORKING){this._state=o.FINISHED;const e=Flac.FLAC__stream_encoder_finish(this._encoderId);console.log("Flac encoding finished: ",e),Flac.FLAC__stream_encoder_delete(this._encoderId),this._data=this._exportFlacBlob()}}getBlob(){return this._state===o.FINISHED?this._data:null}_exportFlacBlob(){const e=function(e,t){const n=new Uint8Array(t);let r=0;const i=e.length;for(let t=0;t<i;t++){const i=e[t];n.set(i,r),r+=i.length}return n}(this._flacBuffers,this._flacLength);return new Blob([e],{type:"audio/flac"})}_onEncodedData(e,t){this._flacBuffers.push(e),this._flacLength+=e.byteLength}}let s=null;self.onmessage=function(e){switch(e.data.command){case"MAIN_THREAD_INIT":{const t=e.data.config.bps,n=e.data.config.sampleRate;Flac.isReady()?(s=new a(n,t),self.postMessage({command:"WORKER_LIBFLAC_READY"})):Flac.onready=function(){setTimeout(()=>{s=new a(n,t),self.postMessage({command:"WORKER_LIBFLAC_READY"})},0)};break}case"MAIN_THREAD_NEW_DATA_ARRIVED":null===s?console.error("flacEncoderWorker received data when the encoder is not ready."):s.encode(e.data.buf);break;case"MAIN_THREAD_FINISH":if(null!==s){s.finish();const e=s.getBlob();self.postMessage({command:"WORKER_BLOB_READY",buf:e}),s=null}}}}]);
|
||||
//# sourceMappingURL=flacEncodeWorker.min.map
|
||||
File diff suppressed because one or more lines are too long
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|
||||
/******/ (function(modules) { // webpackBootstrap
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||||
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||||
/******/ var installedModules = {};
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||||
/******/ // The require function
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||||
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||||
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||||
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||||
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||||
/******/ var module = installedModules[moduleId] = {
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||||
/******/ i: moduleId,
|
||||
/******/ l: false,
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||||
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||||
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||||
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||||
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||||
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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||||
/******/
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
/******/
|
||||
/******/
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||||
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||||
/******/ __webpack_require__.m = modules;
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||||
/******/
|
||||
/******/ // expose the module cache
|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
/******/ // mode & 4: return value when already ns object
|
||||
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|
||||
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|
||||
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|
||||
/******/ if(mode & 8) return value;
|
||||
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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||||
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|
||||
/******/ __webpack_require__.r(ns);
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||||
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||||
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|
||||
/******/ return ns;
|
||||
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|
||||
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|
||||
/******/ // getDefaultExport function for compatibility with non-harmony modules
|
||||
/******/ __webpack_require__.n = function(module) {
|
||||
/******/ var getter = module && module.__esModule ?
|
||||
/******/ function getDefault() { return module['default']; } :
|
||||
/******/ function getModuleExports() { return module; };
|
||||
/******/ __webpack_require__.d(getter, 'a', getter);
|
||||
/******/ return getter;
|
||||
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|
||||
/******/
|
||||
/******/ // Object.prototype.hasOwnProperty.call
|
||||
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
|
||||
/******/
|
||||
/******/ // __webpack_public_path__
|
||||
/******/ __webpack_require__.p = "";
|
||||
/******/
|
||||
/******/
|
||||
/******/ // Load entry module and return exports
|
||||
/******/ return __webpack_require__(__webpack_require__.s = 0);
|
||||
/******/ })
|
||||
/************************************************************************/
|
||||
/******/ ([
|
||||
/* 0 */
|
||||
/***/ (function(module, __webpack_exports__, __webpack_require__) {
|
||||
|
||||
"use strict";
|
||||
// ESM COMPAT FLAG
|
||||
__webpack_require__.r(__webpack_exports__);
|
||||
|
||||
// CONCATENATED MODULE: ./modules/e2ee/crypto-utils.js
|
||||
/**
|
||||
* Derives a set of keys from the master key.
|
||||
* @param {CryptoKey} material - master key to derive from
|
||||
*
|
||||
* See https://tools.ietf.org/html/draft-omara-sframe-00#section-4.3.1
|
||||
*/
|
||||
async function deriveKeys(material) {
|
||||
const info = new ArrayBuffer();
|
||||
const textEncoder = new TextEncoder();
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/deriveKey#HKDF
|
||||
// https://developer.mozilla.org/en-US/docs/Web/API/HkdfParams
|
||||
const encryptionKey = await crypto.subtle.deriveKey({
|
||||
name: 'HKDF',
|
||||
salt: textEncoder.encode('JFrameEncryptionKey'),
|
||||
hash: 'SHA-256',
|
||||
info
|
||||
}, material, {
|
||||
name: 'AES-CTR',
|
||||
length: 128
|
||||
}, false, [ 'encrypt', 'decrypt' ]);
|
||||
const authenticationKey = await crypto.subtle.deriveKey({
|
||||
name: 'HKDF',
|
||||
salt: textEncoder.encode('JFrameAuthenticationKey'),
|
||||
hash: 'SHA-256',
|
||||
info
|
||||
}, material, {
|
||||
name: 'HMAC',
|
||||
hash: 'SHA-256'
|
||||
}, false, [ 'sign' ]);
|
||||
const saltKey = await crypto.subtle.deriveBits({
|
||||
name: 'HKDF',
|
||||
salt: textEncoder.encode('JFrameSaltKey'),
|
||||
hash: 'SHA-256',
|
||||
info
|
||||
}, material, 128);
|
||||
|
||||
return {
|
||||
material,
|
||||
encryptionKey,
|
||||
authenticationKey,
|
||||
saltKey
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Ratchets a key. See
|
||||
* https://tools.ietf.org/html/draft-omara-sframe-00#section-4.3.5.1
|
||||
* @param {CryptoKey} material - base key material
|
||||
* @returns {ArrayBuffer} - ratcheted key material
|
||||
*/
|
||||
async function ratchet(material) {
|
||||
const textEncoder = new TextEncoder();
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/deriveBits
|
||||
return crypto.subtle.deriveBits({
|
||||
name: 'HKDF',
|
||||
salt: textEncoder.encode('JFrameRatchetKey'),
|
||||
hash: 'SHA-256',
|
||||
info: new ArrayBuffer()
|
||||
}, material, 256);
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts a raw key into a WebCrypto key object with default options
|
||||
* suitable for our usage.
|
||||
* @param {ArrayBuffer} keyBytes - raw key
|
||||
* @param {Array} keyUsages - key usages, see importKey documentation
|
||||
* @returns {CryptoKey} - the WebCrypto key.
|
||||
*/
|
||||
async function importKey(keyBytes) {
|
||||
// https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/importKey
|
||||
return crypto.subtle.importKey('raw', keyBytes, 'HKDF', false, [ 'deriveBits', 'deriveKey' ]);
|
||||
}
|
||||
|
||||
// CONCATENATED MODULE: ./modules/e2ee/utils.js
|
||||
/**
|
||||
* Polyfill RTCEncoded(Audio|Video)Frame.getMetadata() (not available in M83, available M84+).
|
||||
* The polyfill can not be done on the prototype since its not exposed in workers. Instead,
|
||||
* it is done as another transformation to keep it separate.
|
||||
* TODO: remove when we decode to drop M83 support.
|
||||
*/
|
||||
function polyFillEncodedFrameMetadata(encodedFrame, controller) {
|
||||
if (!encodedFrame.getMetadata) {
|
||||
encodedFrame.getMetadata = function() {
|
||||
return {
|
||||
// TODO: provide a more complete polyfill based on additionalData for video.
|
||||
synchronizationSource: this.synchronizationSource,
|
||||
contributingSources: this.contributingSources
|
||||
};
|
||||
};
|
||||
}
|
||||
controller.enqueue(encodedFrame);
|
||||
}
|
||||
|
||||
/**
|
||||
* Compares two byteArrays for equality.
|
||||
*/
|
||||
function isArrayEqual(a1, a2) {
|
||||
if (a1.byteLength !== a2.byteLength) {
|
||||
return false;
|
||||
}
|
||||
for (let i = 0; i < a1.byteLength; i++) {
|
||||
if (a1[i] !== a2[i]) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// CONCATENATED MODULE: ./modules/e2ee/Context.js
|
||||
/* eslint-disable no-bitwise */
|
||||
/* global BigInt */
|
||||
|
||||
|
||||
|
||||
|
||||
// We use a ringbuffer of keys so we can change them and still decode packets that were
|
||||
// encrypted with an old key. We use a size of 16 which corresponds to the four bits
|
||||
// in the frame trailer.
|
||||
const keyRingSize = 16;
|
||||
|
||||
// We copy the first bytes of the VP8 payload unencrypted.
|
||||
// For keyframes this is 10 bytes, for non-keyframes (delta) 3. See
|
||||
// https://tools.ietf.org/html/rfc6386#section-9.1
|
||||
// This allows the bridge to continue detecting keyframes (only one byte needed in the JVB)
|
||||
// and is also a bit easier for the VP8 decoder (i.e. it generates funny garbage pictures
|
||||
// instead of being unable to decode).
|
||||
// This is a bit for show and we might want to reduce to 1 unconditionally in the final version.
|
||||
//
|
||||
// For audio (where frame.type is not set) we do not encrypt the opus TOC byte:
|
||||
// https://tools.ietf.org/html/rfc6716#section-3.1
|
||||
const unencryptedBytes = {
|
||||
key: 10,
|
||||
delta: 3,
|
||||
undefined: 1 // frame.type is not set on audio
|
||||
};
|
||||
|
||||
// Use truncated SHA-256 hashes, 80 bіts for video, 32 bits for audio.
|
||||
// This follows the same principles as DTLS-SRTP.
|
||||
const authenticationTagOptions = {
|
||||
name: 'HMAC',
|
||||
hash: 'SHA-256'
|
||||
};
|
||||
const digestLength = {
|
||||
key: 10,
|
||||
delta: 10,
|
||||
undefined: 4 // frame.type is not set on audio
|
||||
};
|
||||
|
||||
// Maximum number of forward ratchets to attempt when the authentication
|
||||
// tag on a remote packet does not match the current key.
|
||||
const ratchetWindow = 8;
|
||||
|
||||
/**
|
||||
* Per-participant context holding the cryptographic keys and
|
||||
* encode/decode functions
|
||||
*/
|
||||
class Context_Context {
|
||||
/**
|
||||
* @param {string} id - local muc resourcepart
|
||||
*/
|
||||
constructor(id) {
|
||||
// An array (ring) of keys that we use for sending and receiving.
|
||||
this._cryptoKeyRing = new Array(keyRingSize);
|
||||
|
||||
// A pointer to the currently used key.
|
||||
this._currentKeyIndex = -1;
|
||||
|
||||
// A per-sender counter that is used create the AES CTR.
|
||||
// Must be incremented on every frame that is sent, can be reset on
|
||||
// key changes.
|
||||
this._sendCount = BigInt(0); // eslint-disable-line new-cap
|
||||
|
||||
this._id = id;
|
||||
}
|
||||
|
||||
/**
|
||||
* Derives the different subkeys and starts using them for encryption or
|
||||
* decryption.
|
||||
* @param {Uint8Array|false} key bytes. Pass false to disable.
|
||||
* @param {Number} keyIndex
|
||||
*/
|
||||
async setKey(keyBytes, keyIndex) {
|
||||
let newKey;
|
||||
|
||||
if (keyBytes) {
|
||||
const material = await importKey(keyBytes);
|
||||
|
||||
newKey = await deriveKeys(material);
|
||||
} else {
|
||||
newKey = false;
|
||||
}
|
||||
this._currentKeyIndex = keyIndex % this._cryptoKeyRing.length;
|
||||
this._setKeys(newKey);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets a set of keys and resets the sendCount.
|
||||
* decryption.
|
||||
* @param {Object} keys set of keys.
|
||||
* @private
|
||||
*/
|
||||
_setKeys(keys) {
|
||||
this._cryptoKeyRing[this._currentKeyIndex] = keys;
|
||||
this._sendCount = BigInt(0); // eslint-disable-line new-cap
|
||||
}
|
||||
|
||||
/**
|
||||
* Function that will be injected in a stream and will encrypt the given encoded frames.
|
||||
*
|
||||
* @param {RTCEncodedVideoFrame|RTCEncodedAudioFrame} encodedFrame - Encoded video frame.
|
||||
* @param {TransformStreamDefaultController} controller - TransportStreamController.
|
||||
*
|
||||
* The packet format is a variant of
|
||||
* https://tools.ietf.org/html/draft-omara-sframe-00
|
||||
* using a trailer instead of a header. One of the design goals was to not require
|
||||
* changes to the SFU which for video requires not encrypting the keyframe bit of VP8
|
||||
* as SFUs need to detect a keyframe (framemarking or the generic frame descriptor will
|
||||
* solve this eventually). This also "hides" that a client is using E2EE a bit.
|
||||
*
|
||||
* Note that this operates on the full frame, i.e. for VP8 the data described in
|
||||
* https://tools.ietf.org/html/rfc6386#section-9.1
|
||||
*
|
||||
* The VP8 payload descriptor described in
|
||||
* https://tools.ietf.org/html/rfc7741#section-4.2
|
||||
* is part of the RTP packet and not part of the encoded frame and is therefore not
|
||||
* controllable by us. This is fine as the SFU keeps having access to it for routing.
|
||||
*/
|
||||
encodeFunction(encodedFrame, controller) {
|
||||
const keyIndex = this._currentKeyIndex;
|
||||
|
||||
if (this._cryptoKeyRing[keyIndex]) {
|
||||
this._sendCount++;
|
||||
|
||||
// Thіs is not encrypted and contains the VP8 payload descriptor or the Opus TOC byte.
|
||||
const frameHeader = new Uint8Array(encodedFrame.data, 0, unencryptedBytes[encodedFrame.type]);
|
||||
|
||||
// Construct frame trailer. Similar to the frame header described in
|
||||
// https://tools.ietf.org/html/draft-omara-sframe-00#section-4.2
|
||||
// but we put it at the end.
|
||||
// 0 1 2 3 4 5 6 7
|
||||
// ---------+---------------------------------+-+-+-+-+-+-+-+-+
|
||||
// payload | CTR... (length=LEN) |S|LEN |KID |
|
||||
// ---------+---------------------------------+-+-+-+-+-+-+-+-+
|
||||
const counter = new Uint8Array(16);
|
||||
const counterView = new DataView(counter.buffer);
|
||||
|
||||
// The counter is encoded as a variable-length field.
|
||||
counterView.setBigUint64(8, this._sendCount);
|
||||
let counterLength = 8;
|
||||
|
||||
for (let i = 8; i < counter.byteLength; i++ && counterLength--) {
|
||||
if (counterView.getUint8(i) !== 0) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
const frameTrailer = new Uint8Array(counterLength + 1);
|
||||
|
||||
frameTrailer.set(new Uint8Array(counter.buffer, counter.byteLength - counterLength));
|
||||
|
||||
// Since we never send a counter of 0 we send counterLength - 1 on the wire.
|
||||
// This is different from the sframe draft, increases the key space and lets us
|
||||
// ignore the case of a zero-length counter at the receiver.
|
||||
frameTrailer[frameTrailer.byteLength - 1] = keyIndex | ((counterLength - 1) << 4);
|
||||
|
||||
// XOR the counter with the saltKey to construct the AES CTR.
|
||||
const saltKey = new DataView(this._cryptoKeyRing[keyIndex].saltKey);
|
||||
|
||||
for (let i = 0; i < counter.byteLength; i++) {
|
||||
counterView.setUint8(i, counterView.getUint8(i) ^ saltKey.getUint8(i));
|
||||
}
|
||||
|
||||
return crypto.subtle.encrypt({
|
||||
name: 'AES-CTR',
|
||||
counter,
|
||||
length: 64
|
||||
}, this._cryptoKeyRing[keyIndex].encryptionKey, new Uint8Array(encodedFrame.data,
|
||||
unencryptedBytes[encodedFrame.type]))
|
||||
.then(cipherText => {
|
||||
const newData = new ArrayBuffer(frameHeader.byteLength + cipherText.byteLength
|
||||
+ digestLength[encodedFrame.type] + frameTrailer.byteLength);
|
||||
const newUint8 = new Uint8Array(newData);
|
||||
|
||||
newUint8.set(frameHeader); // copy first bytes.
|
||||
newUint8.set(new Uint8Array(cipherText), unencryptedBytes[encodedFrame.type]); // add ciphertext.
|
||||
// Leave some space for the authentication tag. This is filled with 0s initially, similar to
|
||||
// STUN message-integrity described in https://tools.ietf.org/html/rfc5389#section-15.4
|
||||
newUint8.set(frameTrailer, frameHeader.byteLength + cipherText.byteLength
|
||||
+ digestLength[encodedFrame.type]); // append trailer.
|
||||
|
||||
return crypto.subtle.sign(authenticationTagOptions, this._cryptoKeyRing[keyIndex].authenticationKey,
|
||||
new Uint8Array(newData)).then(authTag => {
|
||||
// Set the truncated authentication tag.
|
||||
newUint8.set(new Uint8Array(authTag, 0, digestLength[encodedFrame.type]),
|
||||
unencryptedBytes[encodedFrame.type] + cipherText.byteLength);
|
||||
encodedFrame.data = newData;
|
||||
|
||||
return controller.enqueue(encodedFrame);
|
||||
});
|
||||
}, e => {
|
||||
// TODO: surface this to the app.
|
||||
console.error(e);
|
||||
|
||||
// We are not enqueuing the frame here on purpose.
|
||||
});
|
||||
}
|
||||
|
||||
/* NOTE WELL:
|
||||
* This will send unencrypted data (only protected by DTLS transport encryption) when no key is configured.
|
||||
* This is ok for demo purposes but should not be done once this becomes more relied upon.
|
||||
*/
|
||||
controller.enqueue(encodedFrame);
|
||||
}
|
||||
|
||||
/**
|
||||
* Function that will be injected in a stream and will decrypt the given encoded frames.
|
||||
*
|
||||
* @param {RTCEncodedVideoFrame|RTCEncodedAudioFrame} encodedFrame - Encoded video frame.
|
||||
* @param {TransformStreamDefaultController} controller - TransportStreamController.
|
||||
*/
|
||||
async decodeFunction(encodedFrame, controller) {
|
||||
const data = new Uint8Array(encodedFrame.data);
|
||||
const keyIndex = data[encodedFrame.data.byteLength - 1] & 0xf; // lower four bits.
|
||||
|
||||
if (this._cryptoKeyRing[keyIndex]) {
|
||||
const counterLength = 1 + ((data[encodedFrame.data.byteLength - 1] >> 4) & 0x7);
|
||||
const frameHeader = new Uint8Array(encodedFrame.data, 0, unencryptedBytes[encodedFrame.type]);
|
||||
|
||||
// Extract the truncated authentication tag.
|
||||
const authTagOffset = encodedFrame.data.byteLength - (digestLength[encodedFrame.type]
|
||||
+ counterLength + 1);
|
||||
const authTag = encodedFrame.data.slice(authTagOffset, authTagOffset
|
||||
+ digestLength[encodedFrame.type]);
|
||||
|
||||
// Set authentication tag bytes to 0.
|
||||
const zeros = new Uint8Array(digestLength[encodedFrame.type]);
|
||||
|
||||
data.set(zeros, encodedFrame.data.byteLength - (digestLength[encodedFrame.type] + counterLength + 1));
|
||||
|
||||
// Do truncated hash comparison. If the hash does not match we might have to advance the
|
||||
// ratchet a limited number of times. See (even though the description there is odd)
|
||||
// https://tools.ietf.org/html/draft-omara-sframe-00#section-4.3.5.1
|
||||
let { authenticationKey, material } = this._cryptoKeyRing[keyIndex];
|
||||
let valid = false;
|
||||
let newKeys = null;
|
||||
|
||||
for (let distance = 0; distance < ratchetWindow; distance++) {
|
||||
const calculatedTag = await crypto.subtle.sign(authenticationTagOptions,
|
||||
authenticationKey, encodedFrame.data);
|
||||
|
||||
if (isArrayEqual(new Uint8Array(authTag),
|
||||
new Uint8Array(calculatedTag.slice(0, digestLength[encodedFrame.type])))) {
|
||||
valid = true;
|
||||
if (distance > 0) {
|
||||
this._setKeys(newKeys);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
// Attempt to ratchet and generate the next set of keys.
|
||||
material = await importKey(await ratchet(material));
|
||||
newKeys = await deriveKeys(material);
|
||||
authenticationKey = newKeys.authenticationKey;
|
||||
}
|
||||
|
||||
// Check whether we found a valid signature.
|
||||
if (!valid) {
|
||||
// TODO: return an error to the app.
|
||||
|
||||
console.error('Authentication tag mismatch');
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// Extract the counter.
|
||||
const counter = new Uint8Array(16);
|
||||
|
||||
counter.set(data.slice(encodedFrame.data.byteLength - (counterLength + 1),
|
||||
encodedFrame.data.byteLength - 1), 16 - counterLength);
|
||||
const counterView = new DataView(counter.buffer);
|
||||
|
||||
// XOR the counter with the saltKey to construct the AES CTR.
|
||||
const saltKey = new DataView(this._cryptoKeyRing[keyIndex].saltKey);
|
||||
|
||||
for (let i = 0; i < counter.byteLength; i++) {
|
||||
counterView.setUint8(i,
|
||||
counterView.getUint8(i) ^ saltKey.getUint8(i));
|
||||
}
|
||||
|
||||
return crypto.subtle.decrypt({
|
||||
name: 'AES-CTR',
|
||||
counter,
|
||||
length: 64
|
||||
}, this._cryptoKeyRing[keyIndex].encryptionKey, new Uint8Array(encodedFrame.data,
|
||||
unencryptedBytes[encodedFrame.type],
|
||||
encodedFrame.data.byteLength - (unencryptedBytes[encodedFrame.type]
|
||||
+ digestLength[encodedFrame.type] + counterLength + 1))
|
||||
).then(plainText => {
|
||||
const newData = new ArrayBuffer(unencryptedBytes[encodedFrame.type] + plainText.byteLength);
|
||||
const newUint8 = new Uint8Array(newData);
|
||||
|
||||
newUint8.set(frameHeader);
|
||||
newUint8.set(new Uint8Array(plainText), unencryptedBytes[encodedFrame.type]);
|
||||
encodedFrame.data = newData;
|
||||
|
||||
return controller.enqueue(encodedFrame);
|
||||
}, e => {
|
||||
console.error(e);
|
||||
|
||||
// TODO: notify the application about error status.
|
||||
// TODO: For video we need a better strategy since we do not want to based any
|
||||
// non-error frames on a garbage keyframe.
|
||||
if (encodedFrame.type === undefined) { // audio, replace with silence.
|
||||
const newData = new ArrayBuffer(3);
|
||||
const newUint8 = new Uint8Array(newData);
|
||||
|
||||
newUint8.set([ 0xd8, 0xff, 0xfe ]); // opus silence frame.
|
||||
encodedFrame.data = newData;
|
||||
controller.enqueue(encodedFrame);
|
||||
}
|
||||
});
|
||||
} else if (keyIndex >= this._cryptoKeyRing.length && this._cryptoKeyRing[this._currentKeyIndex]) {
|
||||
// If we are encrypting but don't have a key for the remote drop the frame.
|
||||
// This is a heuristic since we don't know whether a packet is encrypted,
|
||||
// do not have a checksum and do not have signaling for whether a remote participant does
|
||||
// encrypt or not.
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO: this just passes through to the decoder. Is that ok? If we don't know the key yet
|
||||
// we might want to buffer a bit but it is still unclear how to do that (and for how long etc).
|
||||
controller.enqueue(encodedFrame);
|
||||
}
|
||||
}
|
||||
|
||||
// CONCATENATED MODULE: ./modules/e2ee/Worker.js
|
||||
/* global TransformStream */
|
||||
/* eslint-disable no-bitwise */
|
||||
|
||||
// Worker for E2EE/Insertable streams.
|
||||
//
|
||||
|
||||
|
||||
|
||||
|
||||
const contexts = new Map(); // Map participant id => context
|
||||
|
||||
onmessage = async event => {
|
||||
const { operation } = event.data;
|
||||
|
||||
if (operation === 'encode') {
|
||||
const { readableStream, writableStream, participantId } = event.data;
|
||||
|
||||
if (!contexts.has(participantId)) {
|
||||
contexts.set(participantId, new Context_Context(participantId));
|
||||
}
|
||||
const context = contexts.get(participantId);
|
||||
const transformStream = new TransformStream({
|
||||
transform: context.encodeFunction.bind(context)
|
||||
});
|
||||
|
||||
readableStream
|
||||
.pipeThrough(new TransformStream({
|
||||
transform: polyFillEncodedFrameMetadata // M83 polyfill.
|
||||
}))
|
||||
.pipeThrough(transformStream)
|
||||
.pipeTo(writableStream);
|
||||
} else if (operation === 'decode') {
|
||||
const { readableStream, writableStream, participantId } = event.data;
|
||||
|
||||
if (!contexts.has(participantId)) {
|
||||
contexts.set(participantId, new Context_Context(participantId));
|
||||
}
|
||||
const context = contexts.get(participantId);
|
||||
const transformStream = new TransformStream({
|
||||
transform: context.decodeFunction.bind(context)
|
||||
});
|
||||
|
||||
readableStream
|
||||
.pipeThrough(new TransformStream({
|
||||
transform: polyFillEncodedFrameMetadata // M83 polyfill.
|
||||
}))
|
||||
.pipeThrough(transformStream)
|
||||
.pipeTo(writableStream);
|
||||
} else if (operation === 'setKey') {
|
||||
const { participantId, key, keyIndex } = event.data;
|
||||
|
||||
if (!contexts.has(participantId)) {
|
||||
contexts.set(participantId, new Context_Context(participantId));
|
||||
}
|
||||
const context = contexts.get(participantId);
|
||||
|
||||
if (key) {
|
||||
context.setKey(key, keyIndex);
|
||||
} else {
|
||||
context.setKey(false, keyIndex);
|
||||
}
|
||||
} else if (operation === 'cleanup') {
|
||||
const { participantId } = event.data;
|
||||
|
||||
contexts.delete(participantId);
|
||||
} else {
|
||||
console.error('e2ee worker', operation);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***/ })
|
||||
/******/ ]);
|
||||
+26
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
+18
File diff suppressed because one or more lines are too long
Executable
BIN
Binary file not shown.
Binary file not shown.
+2
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
Binary file not shown.
+42
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user