1203 lines
43 KiB
JavaScript
1203 lines
43 KiB
JavaScript
// console.log("BareRTC!");
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// WebRTC configuration.
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const configuration = {
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iceServers: [{
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urls: 'stun:stun.l.google.com:19302'
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}]
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};
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const FileUploadMaxSize = 1024 * 1024 * 8; // 8 MB
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function setModalImage(url) {
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let $modalImg = document.querySelector("#modalImage"),
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$modal = document.querySelector("#photo-modal");
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$modalImg.src = url;
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$modal.classList.add("is-active");
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return false;
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}
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const app = Vue.createApp({
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delimiters: ['[[', ']]'],
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data() {
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return {
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// busy: false, // TODO: not used
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disconnect: false, // don't try to reconnect (e.g. kicked)
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windowFocused: true, // browser tab is active
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windowFocusedAt: new Date(),
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// Disconnect spamming: don't retry too many times.
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disconnectLimit: 8,
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disconnectCount: 0,
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// Website configuration provided by chat.html template.
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config: {
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channels: PublicChannels,
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website: WebsiteURL,
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permitNSFW: PermitNSFW,
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sounds: {
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available: SoundEffects,
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settings: DefaultSounds,
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ready: false,
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audioContext: null,
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audioTracks: {},
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}
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},
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// User JWT settings if available.
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jwt: {
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token: UserJWTToken,
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valid: UserJWTValid,
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claims: UserJWTClaims
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},
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channel: "lobby",
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username: "", //"test",
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autoLogin: false, // e.g. from JWT auth
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message: "",
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typingNotifDebounce: null,
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// WebSocket connection.
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ws: {
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conn: null,
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connected: false,
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},
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// Who List for the room.
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whoList: [],
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whoMap: {}, // map username to wholist entry
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// My video feed.
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webcam: {
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busy: false,
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active: false,
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elem: null, // <video id="localVideo"> element
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stream: null, // MediaStream object
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muted: false, // our outgoing mic is muted, not by default
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nsfw: false, // user has flagged their camera to be NSFW
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// Who all is watching me? map of users.
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watching: {},
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// Scaling setting for the videos drawer, so the user can
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// embiggen the webcam sizes so a suitable size.
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videoScale: "",
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videoScaleOptions: [
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[ "", "Default size" ],
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[ "x1", "50% larger videos" ],
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[ "x2", "2x larger videos" ],
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[ "x3", "3x larger videos" ],
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[ "x4", "4x larger videos (not recommended)" ],
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],
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},
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// WebRTC sessions with other users.
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WebRTC: {
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// Streams per username.
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streams: {},
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muted: {}, // muted bool per username
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// RTCPeerConnections per username.
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pc: {},
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},
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// Chat history.
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history: [],
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channels: {
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// There will be values here like:
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// "lobby": {
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// "history": [],
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// "updated": timestamp,
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// "unread": 4,
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// },
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// "@username": {
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// "history": [],
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// ...
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// }
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},
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historyScrollbox: null,
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DMs: {},
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// Responsive CSS controls for mobile.
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responsive: {
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leftDrawerOpen: false,
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rightDrawerOpen: false,
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nodes: {
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// DOM nodes for the CSS grid cells.
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$container: null,
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$left: null,
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$center: null,
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$right: null,
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}
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},
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loginModal: {
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visible: false,
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},
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settingsModal: {
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visible: false,
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},
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nsfwModalCast: {
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visible: false,
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},
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nsfwModalView: {
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visible: false,
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dontShowAgain: false,
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user: null, // staged User we wanted to open
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},
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}
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},
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mounted() {
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this.setupSounds();
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this.webcam.elem = document.querySelector("#localVideo");
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this.historyScrollbox = document.querySelector("#chatHistory");
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this.responsive.nodes = {
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$container: document.querySelector(".chat-container"),
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$left: document.querySelector(".left-column"),
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$center: document.querySelector(".chat-column"),
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$right: document.querySelector(".right-column"),
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};
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// Reset CSS overrides for responsive display on any window size change. In effect,
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// making the chat panel the current screen again on phone rotation.
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window.addEventListener("resize", () => {
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this.resetResponsiveCSS();
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});
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// Listen for window focus/unfocus events. Being on a different browser tab, for
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// sound effect alert purposes, counts as not being "in" that chat channel when
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// a message comes in.
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window.addEventListener("focus", () => {
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this.windowFocused = true;
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this.windowFocusedAt = new Date();
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});
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window.addEventListener("blur", () => {
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this.windowFocused = false;
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})
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for (let channel of this.config.channels) {
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this.initHistory(channel.ID);
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}
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this.ChatClient("Welcome to BareRTC!");
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// Auto login with JWT token?
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// TODO: JWT validation on the WebSocket as well.
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if (this.jwt.valid && this.jwt.claims.sub) {
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this.username = this.jwt.claims.sub;
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this.autoLogin = true;
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}
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// Scrub JWT token from query string parameters.
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history.pushState(null, "", location.href.split("?")[0]);
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// XX: always show login dialog to test if this helps iOS devices.
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// this.loginModal.visible = true;
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if (!this.username) {
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this.loginModal.visible = true;
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} else {
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this.signIn();
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}
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},
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watch: {
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"webcam.videoScale": () => {
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document.querySelectorAll(".video-feeds > .feed").forEach(node => {
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node.style.width = null;
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node.style.height = null;
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});
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},
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},
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computed: {
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chatHistory() {
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if (this.channels[this.channel] == undefined) {
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return [];
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}
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let history = this.channels[this.channel].history;
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// How channels work:
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// - Everything going to a public channel like "lobby" goes
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// into the "lobby" channel in the front-end
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// - Direct messages are different: they are all addressed
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// "to" the channel of the current @user, but they are
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// divided into DM threads based on the username.
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if (this.channel.indexOf("@") === 0) {
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// DM thread, divide them by sender.
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// let username = this.channel.substring(1);
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// return history.filter(v => {
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// return v.username === username;
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// });
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}
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return history;
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},
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channelName() {
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// Return a suitable channel title.
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if (this.channel.indexOf("@") === 0) {
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// A DM, return it directly as is.
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return this.channel;
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}
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// Find the friendly name from our config.
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for (let channel of this.config.channels) {
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if (channel.ID === this.channel) {
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return channel.Name;
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}
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}
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return this.channel;
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},
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isDM() {
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// Is the current channel a DM?
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return this.channel.indexOf("@") === 0;
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},
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},
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methods: {
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signIn() {
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this.loginModal.visible = false;
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this.dial();
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},
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/**
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* Chat API Methods (WebSocket packets sent/received)
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*/
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sendMessage() {
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if (!this.message) {
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return;
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}
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if (!this.ws.connected) {
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this.ChatClient("You are not connected to the server.");
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return;
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}
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// console.debug("Send message: %s", this.message);
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this.ws.conn.send(JSON.stringify({
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action: "message",
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channel: this.channel,
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message: this.message,
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}));
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this.message = "";
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},
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sendTypingNotification() {
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// TODO
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},
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// Sync the current user state (such as video broadcasting status) to
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// the backend, which will reload everybody's Who List.
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sendMe() {
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this.ws.conn.send(JSON.stringify({
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action: "me",
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videoActive: this.webcam.active,
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nsfw: this.webcam.nsfw,
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}));
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},
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onMe(msg) {
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// We have had settings pushed to us by the server, such as a change
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// in our choice of username.
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if (this.username != msg.username) {
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this.ChatServer(`Your username has been changed to ${msg.username}.`);
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this.username = msg.username;
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}
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// The server can set our webcam NSFW flag.
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if (this.webcam.nsfw != msg.nsfw) {
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this.webcam.nsfw = msg.nsfw;
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}
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// this.ChatClient(`User sync from backend: ${JSON.stringify(msg)}`);
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},
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// WhoList updates.
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onWho(msg) {
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this.whoList = msg.whoList;
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this.whoMap = {};
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// If we had a camera open with any of these and they have gone
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// off camera, close our side of the connection.
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for (let row of this.whoList) {
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this.whoMap[row.username] = row;
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if (this.WebRTC.streams[row.username] != undefined &&
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row.videoActive !== true) {
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this.closeVideo(row.username, "offerer");
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}
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}
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// Has the back-end server forgotten we are on video? This can
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// happen if we disconnect/reconnect while we were streaming.
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if (this.webcam.active && !this.whoMap[this.username]?.videoActive) {
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this.sendMe();
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}
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},
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// Send a video request to access a user's camera.
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sendOpen(username) {
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this.ws.conn.send(JSON.stringify({
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action: "open",
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username: username,
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}));
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},
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onOpen(msg) {
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// Response for the opener to begin WebRTC connection.
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const secret = msg.openSecret;
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// console.log("OPEN: connect to %s with secret %s", msg.username, secret);
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// this.ChatClient(`onOpen called for ${msg.username}.`);
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this.startWebRTC(msg.username, true);
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},
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onRing(msg) {
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// Message for the receiver to begin WebRTC connection.
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const secret = msg.openSecret;
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// console.log("RING: connection from %s with secret %s", msg.username, secret);
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this.ChatServer(`${msg.username} has opened your camera.`);
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this.startWebRTC(msg.username, false);
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},
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onUserExited(msg) {
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// A user has logged off the server. Clean up any WebRTC connections.
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this.closeVideo(msg.username);
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},
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// Handle messages sent in chat.
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onMessage(msg) {
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// Play sound effects if this is not the active channel or the window is not focused.
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if (msg.channel.indexOf("@") === 0) {
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if (msg.channel !== this.channel || !this.windowFocused) {
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this.playSound("DM");
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}
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} else if (msg.channel !== this.channel || !this.windowFocused) {
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this.playSound("Chat");
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}
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this.pushHistory({
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channel: msg.channel,
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username: msg.username,
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message: msg.message,
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});
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},
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// User logged in or out.
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onPresence(msg) {
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// TODO: make a dedicated leave event
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if (msg.message.indexOf("has exited the room!") > -1) {
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// Clean up data about this user.
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this.onUserExited(msg);
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this.playSound("Leave");
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} else {
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this.playSound("Enter");
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}
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// Push it to the history of all public channels.
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for (let channel of this.config.channels) {
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this.pushHistory({
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channel: channel.ID,
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action: msg.action,
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username: msg.username,
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message: msg.message,
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});
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}
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// Push also to any DM channels for this user.
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let channel = "@" + msg.username;
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if (this.channels[channel] != undefined) {
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this.pushHistory({
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channel: channel,
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action: msg.action,
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username: msg.username,
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message: msg.message,
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});
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}
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},
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// Dial the WebSocket connection.
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dial() {
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this.ChatClient("Establishing connection to server...");
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const proto = location.protocol === 'https:' ? 'wss' : 'ws';
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const conn = new WebSocket(`${proto}://${location.host}/ws`);
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conn.addEventListener("close", ev => {
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// Lost connection to server - scrub who list.
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this.onWho({whoList: []});
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this.ws.connected = false;
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this.ChatClient(`WebSocket Disconnected code: ${ev.code}, reason: ${ev.reason}`);
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this.disconnectCount++;
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if (this.disconnectCount > this.disconnectLimit) {
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this.ChatClient(`It seems there's a problem connecting to the server. Please try some other time. Note that iPhones and iPads currently have issues connecting to the chat room in general.`);
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return;
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}
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if (!this.disconnect) {
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if (ev.code !== 1001) {
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this.ChatClient("Reconnecting in 5s");
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setTimeout(this.dial, 5000);
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}
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}
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});
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conn.addEventListener("open", ev => {
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this.ws.connected = true;
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this.ChatClient("Websocket connected!");
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// Tell the server our username.
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this.ws.conn.send(JSON.stringify({
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action: "login",
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username: this.username,
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jwt: this.jwt.token,
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}));
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});
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conn.addEventListener("message", ev => {
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if (typeof ev.data !== "string") {
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console.error("unexpected message type", typeof ev.data);
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return;
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}
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let msg = JSON.parse(ev.data);
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try {
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// Cast timestamp to date.
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msg.at = new Date(msg.at);
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} catch(e) {
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console.error("Parsing timestamp '%s' on msg: %s", msg.at, e);
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}
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switch (msg.action) {
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case "who":
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this.onWho(msg);
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break;
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case "me":
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this.onMe(msg);
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break;
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case "message":
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this.onMessage(msg);
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break;
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case "presence":
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this.onPresence(msg);
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break;
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case "ring":
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this.onRing(msg);
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break;
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case "open":
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this.onOpen(msg);
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break;
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case "candidate":
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this.onCandidate(msg);
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break;
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case "sdp":
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this.onSDP(msg);
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break;
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case "watch":
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this.onWatch(msg);
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break;
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case "unwatch":
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this.onUnwatch(msg);
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break;
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case "error":
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this.pushHistory({
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channel: msg.channel,
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username: msg.username || 'Internal Server Error',
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message: msg.message,
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isChatServer: true,
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});
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break;
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case "disconnect":
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this.disconnect = true;
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break;
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case "ping":
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break;
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default:
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console.error("Unexpected action: %s", JSON.stringify(msg));
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}
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});
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this.ws.conn = conn;
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},
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/**
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* WebRTC concerns.
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*/
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// Start WebRTC with the other username.
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startWebRTC(username, isOfferer) {
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// this.ChatClient(`Begin WebRTC with ${username}.`);
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let pc = new RTCPeerConnection(configuration);
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// Store uni-directional PeerConnections:
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// - If we are reading video from the other (offerer)
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// - If we are sending video to the other (answerer)
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if (this.WebRTC.pc[username] == undefined) {
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this.WebRTC.pc[username] = {};
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}
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if (isOfferer) {
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this.WebRTC.pc[username].offerer = pc;
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} else {
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this.WebRTC.pc[username].answerer = pc;
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}
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// Keep a pointer to the current channel being established (for candidate/SDP).
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this.WebRTC.pc[username].connecting = pc;
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// Create a data channel so we have something to connect over even if
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// the local user is not broadcasting their own camera.
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let dataChannel = pc.createDataChannel("data");
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dataChannel.addEventListener("open", event => {
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// beginTransmission(dataChannel);
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})
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// 'onicecandidate' notifies us whenever an ICE agent needs to deliver a
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// message to the other peer through the signaling server.
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pc.onicecandidate = event => {
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if (event.candidate) {
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this.ws.conn.send(JSON.stringify({
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action: "candidate",
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username: username,
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candidate: JSON.stringify(event.candidate),
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}));
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}
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};
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// If the user is offerer let the 'negotiationneeded' event create the offer.
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if (isOfferer) {
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pc.onnegotiationneeded = () => {
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pc.createOffer().then(this.localDescCreated(pc, username)).catch(this.ChatClient);
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};
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}
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// When a remote stream arrives.
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pc.ontrack = event => {
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const stream = event.streams[0];
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// Do we already have it?
|
|
// this.ChatClient(`Received a video stream from ${username}.`);
|
|
if (this.WebRTC.streams[username] == undefined ||
|
|
this.WebRTC.streams[username].id !== stream.id) {
|
|
this.WebRTC.streams[username] = stream;
|
|
}
|
|
|
|
window.requestAnimationFrame(() => {
|
|
let $ref = document.getElementById(`videofeed-${username}`);
|
|
$ref.srcObject = stream;
|
|
});
|
|
|
|
// Inform them they are being watched.
|
|
this.sendWatch(username, true);
|
|
};
|
|
|
|
// If we were already broadcasting video, send our stream to
|
|
// the connecting user.
|
|
// TODO: currently both users need to have video on for the connection
|
|
// to succeed - if offerer doesn't addTrack it won't request a video channel
|
|
// and so the answerer (who has video) won't actually send its
|
|
if (!isOfferer && this.webcam.active) {
|
|
// this.ChatClient(`Sharing our video stream to ${username}.`);
|
|
let stream = this.webcam.stream;
|
|
stream.getTracks().forEach(track => {
|
|
pc.addTrack(track, stream)
|
|
});
|
|
}
|
|
|
|
// If we are the offerer, begin the connection.
|
|
if (isOfferer) {
|
|
pc.createOffer({
|
|
offerToReceiveVideo: true,
|
|
offerToReceiveAudio: true,
|
|
}).then(this.localDescCreated(pc, username)).catch(this.ChatClient);
|
|
}
|
|
},
|
|
|
|
// Common handler function for
|
|
localDescCreated(pc, username) {
|
|
return (desc) => {
|
|
// this.ChatClient(`setLocalDescription ${JSON.stringify(desc)}`);
|
|
pc.setLocalDescription(
|
|
new RTCSessionDescription(desc),
|
|
() => {
|
|
this.ws.conn.send(JSON.stringify({
|
|
action: "sdp",
|
|
username: username,
|
|
description: JSON.stringify(pc.localDescription),
|
|
}));
|
|
},
|
|
console.error,
|
|
)
|
|
};
|
|
},
|
|
|
|
// Handle inbound WebRTC signaling messages proxied by the websocket.
|
|
onCandidate(msg) {
|
|
if (this.WebRTC.pc[msg.username] == undefined || !this.WebRTC.pc[msg.username].connecting) {
|
|
return;
|
|
}
|
|
let pc = this.WebRTC.pc[msg.username].connecting;
|
|
|
|
// XX: WebRTC candidate/SDP messages JSON stringify their inner payload so that the
|
|
// Go back-end server won't re-order their json keys (Safari on Mac OS is very sensitive
|
|
// to the keys being re-ordered during the handshake, in ways that NO OTHER BROWSER cares
|
|
// about at all). Re-parse the JSON stringified object here.
|
|
let candidate = JSON.parse(msg.candidate);
|
|
|
|
// Add the new ICE candidate.
|
|
pc.addIceCandidate(
|
|
new RTCIceCandidate(
|
|
candidate,
|
|
() => { },
|
|
console.error,
|
|
)
|
|
);
|
|
},
|
|
onSDP(msg) {
|
|
if (this.WebRTC.pc[msg.username] == undefined || !this.WebRTC.pc[msg.username].connecting) {
|
|
return;
|
|
}
|
|
let pc = this.WebRTC.pc[msg.username].connecting;
|
|
|
|
// XX: WebRTC candidate/SDP messages JSON stringify their inner payload so that the
|
|
// Go back-end server won't re-order their json keys (Safari on Mac OS is very sensitive
|
|
// to the keys being re-ordered during the handshake, in ways that NO OTHER BROWSER cares
|
|
// about at all). Re-parse the JSON stringified object here.
|
|
let message = JSON.parse(msg.description);
|
|
|
|
// Add the new ICE candidate.
|
|
// this.ChatClient(`Received a Remote Description from ${msg.username}: ${JSON.stringify(msg.description)}.`);
|
|
pc.setRemoteDescription(new RTCSessionDescription(message), () => {
|
|
// When receiving an offer let's answer it.
|
|
if (pc.remoteDescription.type === 'offer') {
|
|
pc.createAnswer().then(this.localDescCreated(pc, msg.username)).catch(this.ChatClient);
|
|
}
|
|
}, console.error);
|
|
},
|
|
onWatch(msg) {
|
|
// The user has our video feed open now.
|
|
this.webcam.watching[msg.username] = true;
|
|
},
|
|
onUnwatch(msg) {
|
|
// The user has closed our video feed.
|
|
delete(this.webcam.watching[msg.username]);
|
|
},
|
|
sendWatch(username, watching) {
|
|
// Send the watch or unwatch message to backend.
|
|
this.ws.conn.send(JSON.stringify({
|
|
action: watching ? "watch" : "unwatch",
|
|
username: username,
|
|
}));
|
|
},
|
|
|
|
/**
|
|
* Front-end web app concerns.
|
|
*/
|
|
|
|
// Settings modal.
|
|
showSettings() {
|
|
this.settingsModal.visible = true;
|
|
},
|
|
hideSettings() {
|
|
this.settingsModal.visible = false;
|
|
},
|
|
|
|
// Set active chat room.
|
|
setChannel(channel) {
|
|
this.channel = typeof(channel) === "string" ? channel : channel.ID;
|
|
this.scrollHistory();
|
|
this.channels[this.channel].unread = 0;
|
|
|
|
// Responsive CSS: switch back to chat panel upon selecting a channel.
|
|
this.openChatPanel();
|
|
|
|
// Edit hyperlinks to open in a new window.
|
|
this.makeLinksExternal();
|
|
},
|
|
hasUnread(channel) {
|
|
if (this.channels[channel] == undefined) {
|
|
return 0;
|
|
}
|
|
return this.channels[channel].unread;
|
|
},
|
|
openDMs(user) {
|
|
let channel = "@" + user.username;
|
|
this.initHistory(channel);
|
|
this.setChannel(channel);
|
|
|
|
// Responsive CSS: switch back to chat panel upon opening a DM.
|
|
this.openChatPanel();
|
|
},
|
|
openProfile(user) {
|
|
let url = this.profileURLForUsername(user.username);
|
|
if (url) {
|
|
window.open(url);
|
|
}
|
|
},
|
|
avatarURL(user) {
|
|
// Resolve the avatar URL of this user.
|
|
if (user.avatar.match(/^https?:/i)) {
|
|
return user.avatar;
|
|
} else if (user.avatar.indexOf("/") === 0) {
|
|
return this.config.website.replace(/\/+$/, "") + user.avatar;
|
|
}
|
|
return "";
|
|
},
|
|
avatarForUsername(username) {
|
|
if (this.whoMap[username] != undefined && this.whoMap[username].avatar) {
|
|
return this.avatarURL(this.whoMap[username]);
|
|
}
|
|
return null;
|
|
},
|
|
profileURLForUsername(username) {
|
|
if (!username) return;
|
|
username = username.replace(/^@/, "");
|
|
if (this.whoMap[username] != undefined && this.whoMap[username].profileURL) {
|
|
let url = this.whoMap[username].profileURL;
|
|
if (url.match(/^https?:/i)) {
|
|
return url;
|
|
} else if (url.indexOf("/") === 0) {
|
|
// Subdirectory relative to our WebsiteURL
|
|
return this.config.website.replace(/\/+$/, "") + url;
|
|
} else {
|
|
this.ChatClient("Didn't know how to open profile URL: " + url);
|
|
}
|
|
return url;
|
|
}
|
|
return null;
|
|
},
|
|
leaveDM() {
|
|
// Validate we're in a DM currently.
|
|
if (this.channel.indexOf("@") !== 0) return;
|
|
|
|
if (!window.confirm(
|
|
"Do you want to close this chat thread? Your conversation history will " +
|
|
"be forgotten on your computer, but your chat partner may still have " +
|
|
"your chat thread open on their end."
|
|
)) {
|
|
return;
|
|
}
|
|
|
|
let channel = this.channel;
|
|
this.setChannel(this.config.channels[0].ID);
|
|
delete(this.channels[channel]);
|
|
},
|
|
|
|
activeChannels() {
|
|
// List of current channels, unread indicators etc.
|
|
let result = [];
|
|
for (let channel of this.config.channels) {
|
|
let data = {
|
|
ID: channel.ID,
|
|
Name: channel.Name,
|
|
};
|
|
if (this.channels[channel] != undefined) {
|
|
data.Unread = this.channels[channel].unread;
|
|
data.Updated = this.channels[channel].updated;
|
|
}
|
|
result.push(data);
|
|
}
|
|
return result;
|
|
},
|
|
activeDMs() {
|
|
// List your currently open DM threads, sorted by most recent.
|
|
let result = [];
|
|
for (let channel of Object.keys(this.channels)) {
|
|
// @mentions only
|
|
if (channel.indexOf("@") !== 0) {
|
|
continue;
|
|
}
|
|
|
|
result.push({
|
|
channel: channel,
|
|
name: channel.substring(1),
|
|
updated: this.channels[channel].updated,
|
|
unread: this.channels[channel].unread,
|
|
});
|
|
}
|
|
|
|
result.sort((a, b) => {
|
|
return a.updated < b.updated;
|
|
});
|
|
return result;
|
|
},
|
|
|
|
// Start broadcasting my webcam.
|
|
startVideo(force) {
|
|
if (this.webcam.busy) return;
|
|
|
|
// If we are running in PermitNSFW mode, show the user the modal.
|
|
if (this.config.permitNSFW && !force) {
|
|
this.nsfwModalCast.visible = true;
|
|
return;
|
|
}
|
|
|
|
this.webcam.busy = true;
|
|
navigator.mediaDevices.getUserMedia({
|
|
audio: true,
|
|
video: true,
|
|
}).then(stream => {
|
|
this.webcam.active = true;
|
|
this.webcam.elem.srcObject = stream;
|
|
this.webcam.stream = stream;
|
|
|
|
// Tell backend the camera is ready.
|
|
this.sendMe();
|
|
}).catch(err => {
|
|
this.ChatClient(`Webcam error: ${err}`);
|
|
}).finally(() => {
|
|
this.webcam.busy = false;
|
|
})
|
|
},
|
|
|
|
// Begin connecting to someone else's webcam.
|
|
openVideo(user, force) {
|
|
if (user.username === this.username) {
|
|
this.ChatClient("You can already see your own webcam.");
|
|
return;
|
|
}
|
|
|
|
// Is the target user NSFW? Go thru the modal.
|
|
let dontShowAgain = localStorage["skip-nsfw-modal"] == "true";
|
|
if (user.nsfw && !dontShowAgain && !force) {
|
|
this.nsfwModalView.user = user;
|
|
this.nsfwModalView.visible = true;
|
|
return;
|
|
}
|
|
if (this.nsfwModalView.dontShowAgain) {
|
|
// user doesn't want to see the modal again.
|
|
localStorage["skip-nsfw-modal"] = "true";
|
|
}
|
|
|
|
// Camera is already open? Then disconnect the connection.
|
|
if (this.WebRTC.pc[user.username] != undefined && this.WebRTC.pc[user.username].offerer != undefined) {
|
|
this.closeVideo(user.username, "offerer");
|
|
return;
|
|
}
|
|
|
|
this.sendOpen(user.username);
|
|
|
|
// Responsive CSS -> go to chat panel to see the camera
|
|
this.openChatPanel();
|
|
},
|
|
closeVideo(username, name) {
|
|
if (name === "offerer") {
|
|
// We are closing another user's video stream.
|
|
delete (this.WebRTC.streams[username]);
|
|
if (this.WebRTC.pc[username] != undefined && this.WebRTC.pc[username].offerer != undefined) {
|
|
this.WebRTC.pc[username].offerer.close();
|
|
delete (this.WebRTC.pc[username]);
|
|
}
|
|
|
|
// Inform backend we have closed it.
|
|
this.sendWatch(username, false);
|
|
return;
|
|
} else if (name === "answerer") {
|
|
// We have turned off our camera, kick off viewers.
|
|
if (this.WebRTC.pc[username] != undefined && this.WebRTC.pc[username].answerer != undefined) {
|
|
this.WebRTC.pc[username].answerer.close();
|
|
delete (this.WebRTC.pc[username]);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// A user has logged off the server. Clean up any WebRTC connections.
|
|
delete (this.WebRTC.streams[username]);
|
|
delete (this.webcam.watching[username]);
|
|
if (this.WebRTC.pc[username] != undefined) {
|
|
if (this.WebRTC.pc[username].offerer) {
|
|
this.WebRTC.pc[username].offerer.close();
|
|
}
|
|
if (this.WebRTC.pc[username].answerer) {
|
|
this.WebRTC.pc[username].answerer.close();
|
|
}
|
|
delete (this.WebRTC.pc[username]);
|
|
}
|
|
|
|
// Inform backend we have closed it.
|
|
this.sendWatch(username, false);
|
|
},
|
|
|
|
// Show who watches our video.
|
|
showViewers() {
|
|
// TODO: for now, ChatClient is our bro.
|
|
let users = Object.keys(this.webcam.watching);
|
|
if (users.length === 0) {
|
|
this.ChatClient("There is currently nobody viewing your camera.");
|
|
} else {
|
|
this.ChatClient("Your current webcam viewers are:<br><br>" + users.join(", "));
|
|
}
|
|
},
|
|
|
|
// Stop broadcasting.
|
|
stopVideo() {
|
|
this.webcam.elem.srcObject = null;
|
|
this.webcam.stream = null;
|
|
this.webcam.active = false;
|
|
|
|
// Close all WebRTC sessions.
|
|
for (username of Object.keys(this.WebRTC.pc)) {
|
|
this.closeVideo(username, "answerer");
|
|
}
|
|
|
|
// Tell backend our camera state.
|
|
this.sendMe();
|
|
},
|
|
|
|
// Mute my microphone if broadcasting.
|
|
muteMe() {
|
|
this.webcam.muted = !this.webcam.muted;
|
|
this.webcam.stream.getAudioTracks().forEach(track => {
|
|
track.enabled = !this.webcam.muted;
|
|
});
|
|
},
|
|
isMuted(username) {
|
|
return this.WebRTC.muted[username] === true;
|
|
},
|
|
muteVideo(username) {
|
|
this.WebRTC.muted[username] = !this.isMuted(username);
|
|
|
|
// Find the <video> tag to mute it.
|
|
let $ref = document.getElementById(`videofeed-${username}`);
|
|
if ($ref) {
|
|
$ref.muted = this.WebRTC.muted[username];
|
|
}
|
|
},
|
|
|
|
initHistory(channel) {
|
|
if (this.channels[channel] == undefined) {
|
|
this.channels[channel] = {
|
|
history: [],
|
|
updated: Date.now(),
|
|
unread: 0,
|
|
};
|
|
}
|
|
},
|
|
pushHistory({ channel, username, message, action = "message", isChatServer, isChatClient }) {
|
|
// Default channel = your current channel.
|
|
if (!channel) {
|
|
channel = this.channel;
|
|
}
|
|
|
|
// Initialize this channel's history?
|
|
this.initHistory(channel);
|
|
|
|
// Append the message.
|
|
this.channels[channel].updated = Date.now();
|
|
this.channels[channel].history.push({
|
|
action: action,
|
|
username: username,
|
|
message: message,
|
|
at: new Date(),
|
|
isChatServer,
|
|
isChatClient,
|
|
});
|
|
this.scrollHistory();
|
|
|
|
// Mark unread notifiers if this is not our channel.
|
|
if (this.channel !== channel) {
|
|
// Don't notify about presence broadcasts.
|
|
if (action !== "presence" && !isChatServer) {
|
|
this.channels[channel].unread++;
|
|
}
|
|
}
|
|
|
|
// Edit hyperlinks to open in a new window.
|
|
this.makeLinksExternal();
|
|
},
|
|
|
|
scrollHistory() {
|
|
window.requestAnimationFrame(() => {
|
|
this.historyScrollbox.scroll({
|
|
top: this.historyScrollbox.scrollHeight,
|
|
behavior: 'smooth',
|
|
});
|
|
});
|
|
|
|
},
|
|
|
|
// Responsive CSS controls for mobile. Notes for maintenance:
|
|
// - The chat.css has responsive CSS to hide the left/right panels
|
|
// and set the grid-template-columns for devices < 1024px width
|
|
// - These functions override w/ style tags to force the drawer to
|
|
// be visible and change the grid-template-columns.
|
|
// - On window resize (e.g. device rotation) or when closing one
|
|
// of the side drawers, we reset our CSS overrides to default so
|
|
// the main chat window reappears.
|
|
openChannelsPanel() {
|
|
// Open the left drawer
|
|
let $container = this.responsive.nodes.$container,
|
|
$drawer = this.responsive.nodes.$left;
|
|
|
|
$container.style.gridTemplateColumns = "1fr 0 0";
|
|
$drawer.style.display = "block";
|
|
},
|
|
openWhoPanel() {
|
|
// Open the right drawer
|
|
let $container = this.responsive.nodes.$container,
|
|
$drawer = this.responsive.nodes.$right;
|
|
|
|
$container.style.gridTemplateColumns = "0 0 1fr";
|
|
$drawer.style.display = "block";
|
|
},
|
|
openChatPanel() {
|
|
this.resetResponsiveCSS();
|
|
},
|
|
resetResponsiveCSS() {
|
|
let $container = this.responsive.nodes.$container,
|
|
$left = this.responsive.nodes.$left,
|
|
$right = this.responsive.nodes.$right;
|
|
|
|
$left.style.removeProperty("display");
|
|
$right.style.removeProperty("display");
|
|
$container.style.removeProperty("grid-template-columns");
|
|
},
|
|
|
|
// Send a chat message as ChatServer
|
|
ChatServer(message) {
|
|
this.pushHistory({
|
|
username: "ChatServer",
|
|
message: message,
|
|
isChatServer: true,
|
|
});
|
|
},
|
|
ChatClient(message) {
|
|
this.pushHistory({
|
|
username: "ChatClient",
|
|
message: message,
|
|
isChatClient: true,
|
|
});
|
|
},
|
|
|
|
// Format a datetime nicely for chat timestamp.
|
|
prettyDate(date) {
|
|
let hours = date.getHours(),
|
|
minutes = String(date.getMinutes()).padStart(2, '0'),
|
|
seconds = String(date.getSeconds()).padStart(2, '0'),
|
|
ampm = hours >= 11 ? "pm" : "am";
|
|
|
|
let hour = hours%12 || 12;
|
|
return `${(hour)}:${minutes}:${seconds} ${ampm}`;
|
|
},
|
|
|
|
/**
|
|
* Image sharing in chat
|
|
*/
|
|
|
|
// The image upload button handler.
|
|
uploadFile() {
|
|
let input = document.createElement('input');
|
|
input.type = 'file';
|
|
input.accept = 'image/*';
|
|
input.onchange = e => {
|
|
let file = e.target.files[0];
|
|
if (file.size > FileUploadMaxSize) {
|
|
this.ChatClient(`Please share an image smaller than ${FileUploadMaxSize / 1024 / 1024} MB in size!`);
|
|
return;
|
|
}
|
|
|
|
this.ChatClient(`<em>Uploading file to chat: ${file.name} - ${file.size} bytes, ${file.type} format.</em>`);
|
|
|
|
// Get image file data.
|
|
let reader = new FileReader();
|
|
let rawData = new ArrayBuffer();
|
|
reader.onload = e => {
|
|
rawData = e.target.result;
|
|
|
|
let fileByteArray = [],
|
|
u8array = new Uint8Array(rawData);
|
|
for (let i = 0; i < u8array.length; i++) {
|
|
fileByteArray.push(u8array[i]);
|
|
}
|
|
|
|
let msg = JSON.stringify({
|
|
action: "file",
|
|
channel: this.channel,
|
|
message: file.name,
|
|
bytes: fileByteArray, //btoa(fileByteArray),
|
|
});
|
|
|
|
// Send it to the chat server.
|
|
this.ws.conn.send(msg);
|
|
};
|
|
|
|
reader.readAsArrayBuffer(file);
|
|
};
|
|
input.click();
|
|
},
|
|
|
|
/**
|
|
* Sound effect concerns.
|
|
*/
|
|
|
|
setupSounds() {
|
|
try {
|
|
if (AudioContext) {
|
|
this.config.sounds.audioContext = new AudioContext();
|
|
} else {
|
|
this.config.sounds.audioContext = window.AudioContext || window.webkitAudioContext;
|
|
}
|
|
} catch {}
|
|
|
|
if (!this.config.sounds.audioContext) {
|
|
console.error("Couldn't set up AudioContext! No sound effects will be supported.");
|
|
return;
|
|
}
|
|
|
|
// Create <audio> elements for all the sounds.
|
|
for (let effect of this.config.sounds.available) {
|
|
if (!effect.filename) continue; // 'Quiet' has no audio
|
|
|
|
let elem = document.createElement("audio");
|
|
elem.autoplay = false;
|
|
elem.src = `/static/sfx/${effect.filename}`;
|
|
document.body.appendChild(elem);
|
|
|
|
let track = this.config.sounds.audioContext.createMediaElementSource(elem);
|
|
track.connect(this.config.sounds.audioContext.destination);
|
|
this.config.sounds.audioTracks[effect.name] = elem;
|
|
}
|
|
|
|
// Apply the user's saved preferences if any.
|
|
for (let setting of Object.keys(this.config.sounds.settings)) {
|
|
if (localStorage[`sound:${setting}`] != undefined) {
|
|
this.config.sounds.settings[setting] = localStorage[`sound:${setting}`];
|
|
}
|
|
}
|
|
},
|
|
|
|
playSound(event) {
|
|
let filename = this.config.sounds.settings[event];
|
|
// Do we have an audio track?
|
|
if (this.config.sounds.audioTracks[filename] != undefined) {
|
|
let track = this.config.sounds.audioTracks[filename];
|
|
track.play();
|
|
}
|
|
},
|
|
|
|
setSoundPref(event) {
|
|
this.playSound(event);
|
|
|
|
// Store the user's setting in localStorage.
|
|
localStorage[`sound:${event}`] = this.config.sounds.settings[event];
|
|
},
|
|
|
|
makeLinksExternal() {
|
|
window.requestAnimationFrame(() => {
|
|
let $history = document.querySelector("#chatHistory");
|
|
// Make all <a> links appearing in chat into external links.
|
|
($history.querySelectorAll("a") || []).forEach(node => {
|
|
let href = node.attributes.href,
|
|
target = node.attributes.target;
|
|
if (href == undefined || target != undefined) return;
|
|
node.target = "_blank";
|
|
});
|
|
})
|
|
},
|
|
}
|
|
});
|
|
|
|
app.mount("#BareRTC-App"); |