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Multistream chat overlay/aggregate for Owncast and Sheepchat
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <!-- | |
| * Multi-stream chat aggregator for Owncast and Sheepchat. | |
| * Copyright (C) 2024 craftxbox | |
| * | |
| * This program is free software: you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation, either version 3 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| * Usage: | |
| * chatview.html/ | |
| * ?overlay = [true|false] (default: false) - Enable background transparency for use in OBS | |
| * &showLinks = [true|false] (default: false) - Show links in chat (else they will become [Link Removed]) | |
| * &corsProxy = [https://corsproxy.io/?] - CORS proxy to use for fetching images. | |
| * &owncastUri = <owncast.example.com> - Base URI of Owncast instance | |
| * &owncastToken = <token> - Owncast access token. See https://owncast.online/thirdparty/apis/. Only "User Chat Messages" scope is required. | |
| * &sheepUri = [127.0.0.1:49135] - Base URI of Sheepchat instance. You do not need to add this by default. | |
| * &sheepRoom = <g76561198091287090-aogokni5> - Sheepchat "room" to join. This is the part after the "#" in the chat widget URL. | |
| * Found on Settings -> Stream Output -> Widgets -> Chat Widget | |
| * &ircUri = [irc.example.com:6698] - Base URI of IRC server. Optional, will not connect by default. | |
| * The Server used MUST support Websockets in TEXT MODE. (very few do) | |
| * &ircChannel = <#channel> - IRC channel to join. Optional, will not connect by default. | |
| * | |
| * For any help with setup, reach me on discord: https://discord.gg/Mu33sKU2KC | |
| * Or on Mastodon: https://transfur.social/@craftxbox | |
| --> | |
| <head> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.5.0/socket.io.min.js" | |
| crossorigin="anonymous"></script> | |
| <script src="https://unpkg.com/validator@latest/validator.min.js"></script> | |
| <script src="https://unpkg.com/he@1.2.0/he.js"></script> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css"> | |
| <style> | |
| body { | |
| background-color: #222; | |
| color: #fff; | |
| } | |
| body.overlay { | |
| background-color: rgba(0, 0, 0, 0); | |
| margin: 0px auto; | |
| margin-left: 5px | |
| } | |
| .display-color-0 { | |
| color: #ff717b; | |
| } | |
| .display-color-1 { | |
| color: #f4e413; | |
| } | |
| .display-color-2 { | |
| color: #b99c45; | |
| } | |
| .display-color-3 { | |
| color: #58f40b; | |
| } | |
| .display-color-4 { | |
| color: #0bf4f4; | |
| } | |
| .display-color-5 { | |
| color: #16a8f7; | |
| } | |
| .display-color-6 { | |
| color: #9a92ff; | |
| } | |
| .display-color-7 { | |
| color: #ff53ff; | |
| } | |
| div#chat { | |
| width: calc(100vw - 10px); | |
| height: calc(100vh - 10px); | |
| background-color: #0000; | |
| color: #fff; | |
| padding: 10px; | |
| font-family: "Anonymous Pro"; | |
| font-size: 20px; | |
| overflow-x: wrap; | |
| overflow-y: scroll; | |
| overflow-wrap: break-word; | |
| } | |
| a { | |
| color: #fff; | |
| } | |
| ::-webkit-scrollbar { | |
| display: none; | |
| } | |
| p { | |
| background-color: #353535; | |
| border-radius: 6px; | |
| margin: 4px; | |
| padding: 5px; | |
| width: max-content; | |
| max-width: 95vw; | |
| white-space: break-spaces; | |
| } | |
| p.overlay { | |
| background-color: #2227; | |
| } | |
| .emoji { | |
| display: inline-block; | |
| position: relative; | |
| width: 25px; | |
| height: 25px; | |
| top: 5px; | |
| } | |
| .preview { | |
| max-width: 90%; | |
| max-height: 150px; | |
| display: block; | |
| border-radius: 10px; | |
| } | |
| .fa-twitch { | |
| color: #6441a5 | |
| } | |
| .fa-youtube { | |
| color: red | |
| } | |
| .fa-tower-broadcast { | |
| color: #64DD17 | |
| } | |
| .fa-computer { | |
| color: orange; | |
| } | |
| @keyframes fadeOut { | |
| from { | |
| opacity: 1; | |
| } | |
| to { | |
| opacity: 0; | |
| } | |
| } | |
| .removing { | |
| animation: fadeOut 0.25s ease-in-out; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="chat"> | |
| </div> | |
| </body> | |
| <script> | |
| let params = (new URL(document.location)).searchParams; | |
| let owncastUri = params.get("owncastUri") || "crxb.cc/stream"; | |
| let corsProxy = params.get("corsProxy") || "https://corsproxy.io/?"; | |
| let ircUri = params.get("ircUri") || null; | |
| let secure = window.location.protocol == "https:"; | |
| let overlay = false; | |
| if (params.get("overlay") == "true") { | |
| document.body.classList.add("overlay") | |
| overlay = true; | |
| } | |
| // (c) folo 2018 CC-BY-SA 4.0 https://stackoverflow.com/a/51121566/3934270 | |
| const isElementXPercentInViewport = function (el, percentVisible) { | |
| let | |
| rect = el.getBoundingClientRect(), | |
| windowHeight = (window.innerHeight || document.documentElement.clientHeight); | |
| return !( | |
| Math.floor(100 - (((rect.top >= 0 ? 0 : rect.top) / +-rect.height) * 100)) < percentVisible || | |
| Math.floor(100 - ((rect.bottom - windowHeight) / rect.height) * 100) < percentVisible | |
| ) | |
| }; | |
| //end copynotice | |
| // (c) jpfx1342 2022 CC-BY-SA 4.0 https://stackoverflow.com/a/70990824/3934270 | |
| // Easing function takes an number in range [0...1] | |
| // and returns an eased number in that same range. | |
| // See https://easings.net/ for more. | |
| function easeInOutSine(x) { return -(Math.cos(Math.PI * x) - 1) / 2; } | |
| // Simply scrolls the element from the top to the bottom. | |
| // `elem` is the element to scroll | |
| // `time` is the time in milliseconds to take. | |
| // `easing` is an optional easing function. | |
| function scrollToBottom(elem, time, easing, img = 0) { | |
| var startTime = null; | |
| var startScroll = elem.scrollTop; | |
| // You can change the following to scroll to a different position. | |
| var targetScroll = elem.scrollHeight - elem.clientHeight + (200 * img); | |
| var scrollDist = targetScroll - startScroll; | |
| easing = easing || (x => x); | |
| function scrollFunc(t) { | |
| if (startTime === null) startTime = t; | |
| var frac = (t - startTime) / time; | |
| if (frac > 1) frac = 1; | |
| elem.scrollTop = startScroll + Math.ceil(scrollDist * easing(frac)); | |
| if (frac < 0.99999) | |
| requestAnimationFrame(scrollFunc); | |
| } | |
| requestAnimationFrame(scrollFunc); | |
| } | |
| //end copynotice | |
| function append(html,id) { | |
| let el = document.createElement("p") | |
| if (overlay) el.classList.add("overlay") | |
| if (id) el.id = id | |
| if (params.get("showLinks") == "true") el.innerHTML = html | |
| else el.innerHTML = html.replaceAll(/<a .*<\/a>/ig, `<span style="font-size:14px;color:#999">[Link Removed]</span>`) | |
| let hasImg = false | |
| for (let i of html.match(/https?:\/\/\S+/gi) || []) { | |
| try { | |
| i = he.decode(i) | |
| i = i.replace(/"$/, "") | |
| if (validator.isURL(i, { protocols: ['http', 'https'], require_protocol: true })) { | |
| if(i.includes(owncastUri)) continue; | |
| const request = new XMLHttpRequest(); | |
| request.open("GET", (corsProxy) + he.encode(i), false); | |
| request.send(null); | |
| if (request.status === 200) { | |
| let contentType = request.getResponseHeader("Content-Type"); | |
| if (contentType.startsWith("image")) { | |
| hasImg = true | |
| let img = document.createElement("img") | |
| img.onload = function () { | |
| chat.scrollTo(0, chat.scrollHeight) | |
| } | |
| img.src = (corsProxy) + he.encode(i) | |
| img.classList.add("preview") | |
| el.appendChild(img) | |
| break; | |
| } | |
| } | |
| } | |
| } catch (e) { | |
| console.log(e) //but discard so it doesnt break processing | |
| } | |
| } | |
| chat.appendChild(el) | |
| scrollToBottom(chat, 250, easeInOutSine, hasImg) | |
| chat.scrollTo(0, chat.scrollHeight) | |
| for (let el of document.querySelectorAll("#chat p")) { | |
| if (!isElementXPercentInViewport(el, 50)) { | |
| el.classList.add("removing") | |
| setTimeout(() => { | |
| el.remove() | |
| chat.scrollTo(0, chat.scrollHeight) | |
| }, 250) | |
| } | |
| } | |
| } | |
| let exponentialBackoff = 0; | |
| let ircExponentialBackoff = 0; | |
| function connectOwncast() { | |
| let ws = new WebSocket((secure ? "wss://" : "ws://") + (owncastUri) + "/ws?accessToken=" + params.get("owncastToken")) | |
| ws.onopen = function (_) { | |
| exponentialBackoff = 0; | |
| ws.onmessage = function (e) { | |
| data = JSON.parse(e.data) | |
| switch(data.type){ | |
| case "CHAT": | |
| append(`<i class="fa-solid fa-tower-broadcast"></i> <span class="display-color-${data.user.displayColor}"><${data.user.displayName}></span> ${data.body.replace(/<p>(.*)<\/p>/, "$1").replaceAll("src=\"/", "src=\"https://crxb.cc/stream/")}\n`, data.id) | |
| break; | |
| case "NAME_CHANGE": | |
| append(`<i class="fa-solid fa-tower-broadcast"></i> <span class="display-color-${data.user.displayColor}">${data.oldName}</span> is now known as <span class="display-color-${data.user.displayColor}">${data.user.displayName}</span>\n`,data.id) | |
| case "VISIBILITY-UPDATE": | |
| if(!data.visible){ | |
| for(let id of data.ids){ | |
| document.getElementById(id).remove() | |
| } | |
| chat.scrollTo(0, chat.scrollHeight) | |
| } | |
| break; | |
| } | |
| } | |
| }; | |
| ws.onclose, ws.onerror = function (_) { | |
| setTimeout(function () { | |
| if (exponentialBackoff == 0) exponentialBackoff++; | |
| else exponentialBackoff *= 2; | |
| if (exponentialBackoff > 60) exponentialBackoff = 60; | |
| connectOwncast(); | |
| }, exponentialBackoff * 1000); | |
| }; | |
| } | |
| function connectIrc() { | |
| if (ircUri == null) return; | |
| let ws = new WebSocket((secure ? "wss://" : "ws://") + (ircUri), ['text.ircv3.net'] ) | |
| ws.onopen = function (_) { | |
| ircExponentialBackoff = 0; | |
| let ready = false; | |
| ws.send("NICK chatview-" + Math.random().toString(36).substring(2) + "\r\n") | |
| ws.onmessage = function (e) { | |
| data = e.data | |
| let uid = e.data.split(" ")[0] | |
| if(uid == "PING"){ | |
| ws.send("PONG " + data.split(" ")[1] + "\r\n") | |
| if(!ready) { | |
| ws.send("USER chatview 0 * :chatview\r\n") | |
| ws.send("JOIN " + params.get("ircChannel") + "\r\n") | |
| } | |
| ready = true; | |
| } | |
| let nickColor; | |
| if(uid.includes("!")){ | |
| nickColor = uid.split("!")[1].split("").reduce((a,b)=>a+b.charCodeAt(0),0) % 8 | |
| } | |
| let command = data.split(" ")[1] | |
| switch(command){ | |
| case "PRIVMSG": | |
| let nick = uid.split("!")[0].substring(1) | |
| console.log(data,data.split(":")) | |
| let message = data.split(":")[2] | |
| let channel = data.split(" ")[2] | |
| if(channel != params.get("ircChannel")) return; | |
| append(`<i class="fa-solid fa-computer"></i> <span class="display-color-${nickColor}"><${nick}></span> ${message}\n`) | |
| break; | |
| case "NICK": | |
| let oldNick = uid.split("!")[0].substring(1) | |
| let newNick = data.split(":")[2] | |
| append(`<i class="fa-solid fa-computer"></i> <span class="display-color-${nickColor}">${oldNick}</span> is now known as <span class="display-color-${nickColor}">${newNick}</span>\n`) | |
| break; | |
| } | |
| } | |
| }; | |
| ws.onclose, ws.onerror = function (_) { | |
| setTimeout(function () { | |
| if (ircExponentialBackoff == 0) ircExponentialBackoff++; | |
| else ircExponentialBackoff *= 4; | |
| if (ircExponentialBackoff > 60) ircExponentialBackoff = 60; | |
| connectIrc(); | |
| }, ircExponentialBackoff * 1000); | |
| }; | |
| } | |
| const socket = io(params.get("sheepUri") || "ws://127.0.0.1:49135", { | |
| forceNew: true, | |
| reconnect: true, | |
| secure: true, | |
| path: "/socket.io/", | |
| transports: ['polling', 'websocket'], | |
| upgrade: true, | |
| query: { | |
| session_id: Date.now(), | |
| device_type: "listener", | |
| os: "none", | |
| pc_name: "none", | |
| room: params.get("sheepRoom") | |
| } | |
| }); | |
| connectOwncast(); | |
| connectIrc(); | |
| socket.connect(); | |
| socket.on('connect', () => { | |
| socket.emit("message", { event: "join", data: {} }) | |
| }); | |
| socket.on('message', (data) => { | |
| let event = data.event | |
| data = data.data; | |
| switch (event) { | |
| case "joined": | |
| if (data.sender) { | |
| //socket.emit("message", { event: "fetch", data: {}, socket_select: data.sender, method: "history" }) | |
| } | |
| break; | |
| case "broadcast": | |
| if (data.broadcast_event != "message") return; | |
| append(`<i class="fa-brands fa-${data.type}"></i> <span style="color:${data.color}"><${data.nick}></span> ${data.text}\n`) | |
| break; | |
| } | |
| console.log(data) | |
| }); | |
| </script> | |
| </html> |
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