373 lines
14 KiB
HTML
373 lines
14 KiB
HTML
<!DOCTYPE html>
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<html lang="en" style="height:100%;">
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<head>
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<meta charset="utf-8">
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<title>WebVM - server-less Linux virtual machine for the browser</title>
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<meta name="description" content="WebVM - a server-less Linux virtual machine with networking, running browser-side in HTML5/WebAssembly.">
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<meta name="keywords" content="WebVM, Virtual Machine, CheerpX, x86 virtualization, WebAssembly, Tailscale, JIT">
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<meta property="og:title" content="WebVM - Linux virtual machine on the browser" />
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<meta property="og:type" content="website" />
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<meta property="og:site_name" content="WebVM"/>
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<meta property="og:url" content="/">
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<meta property="og:image" content="https://webvm.io/assets/webvm_preview.png" />
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<meta name="twitter:card" content="summary" />
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<meta name="twitter:site" content="@leaningtech" />
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<meta name="twitter:title" content="WebVM" />
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<meta name="twitter:description" content="WebVM - a server-less Linux virtual machine with networking, running browser-side in HTML5/WebAssembly.">
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<meta name="twitter:image" content="https://webvm.io/assets/webvm_preview.png" />
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<!-- Apple iOS web clip compatibility tags -->
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="application-name" content="WebVM" />
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<meta name="apple-mobile-web-app-title" content="WebVM" />
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-status-bar-style" content="black" />
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<link rel="shortcut icon" href="./tower_logo.png">
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<link rel="preconnect" href="https://fonts.googleapis.com">
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
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<link rel="stylesheet" id="us-fonts-css" href="https://fonts.googleapis.com/css?family=Montserrat%3A300%2C400%2C500%2C600%2C700&display=swap&ver=6.0.2" media="all">
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<link rel="stylesheet" href="./xterm/xterm.css" />
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<link rel="stylesheet" href="./scrollbar.css" />
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<script>
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window.networkInterface = {};
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</script>
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<script type="module">
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import { State } from "/tun/tailscale_tun.js";
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import { autoConf } from "/tun/tailscale_tun_auto.js";
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let resolveLogin = null;
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let loginPromise = new Promise((f,r) => {
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resolveLogin = f;
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});
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const loginUrlCb = (url) => {
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const a = document.getElementById("loginLink");
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a.href = url;
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a.target = "_blank";
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const status = document.getElementById("networkStatus");
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status.innerHTML = "Tailscale Login";
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resolveLogin(url);
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};
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const stateUpdateCb = (state) => {
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switch(state)
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{
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case State.NeedsLogin:
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{
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break;
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}
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case State.Running:
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{
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const a = document.getElementById("loginLink");
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a.href = "https://login.tailscale.com/admin/machines";
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break;
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}
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case State.Starting:
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{
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break;
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}
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case State.Stopped:
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{
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break;
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}
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case State.NoState:
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{
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break;
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}
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}
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};
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const netmapUpdateCb = (map) => {
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const ip = map.self.addresses[0];
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const status = document.getElementById("networkStatus");
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status.innerHTML = "IP: "+ip;
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};
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const { listen, connect, bind, up } = await autoConf({
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loginUrlCb,
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stateUpdateCb,
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netmapUpdateCb,
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});
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window.networkInterface.bind = bind;
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window.networkInterface.connect = connect;
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window.networkInterface.listen = listen;
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window.startTailscaleAndGetLogin = async () => {
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const a = document.getElementById("loginLink");
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a.onclick = null;
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const status = document.getElementById("networkStatus");
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status.innerHTML = "Downloading network code...";
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const w = window.open("login.html", "_blank");
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await up();
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w.document.body.innerHTML = "Starting login...";
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status.innerHTML = "Starting login...";
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const url = await loginPromise;
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w.location.href = url;
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};
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</script>
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<script src="./xterm/xterm.js"></script>
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<script src="./xterm/xterm-addon-fit.js"></script>
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</head>
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<body style="margin:0;height:100%;background:black;color:white;overflow:hidden; display:flex; flex-direction: column; justify-content: space-between; height: 100%;">
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<!-- Google tag (gtag.js) -->
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<script async src="https://www.googletagmanager.com/gtag/js?id=G-818T3Y0PEY"></script>
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<script>
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window.dataLayer = window.dataLayer || [];
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function gtag(){dataLayer.push(arguments);}
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gtag('js', new Date());
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gtag('config', 'G-818T3Y0PEY');
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</script>
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<header style="flex-grow:0; flex-srink: 0;height:80px; width: 100%; margin: 2px 0 2px 0;">
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<div style="display: flex; flex-direction: row; justify-content: space-between; width: 100%;">
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<div style="display: flex; flex-direction: row;">
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<a href="https://leaningtech.com/" target="_blank">
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<img src="./assets/leaningtech.png" style="margin-left: 10px; height: 60px; margin-top: 10px;">
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</a>
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</div>
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<div style="display: flex; flex-direction: row; justify-content: space-before;">
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<li style=" margin-right: 50px; height: 100%; display: flex; align-items: center;">
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<a href="https://discord.leaningtech.com" target="_blank" style="text-decoration: none">
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<div style="color: white; font-family: montserrat; font-weight: 700; font-size: large;">Discord</div>
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</a>
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</li>
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<li style=" margin-right: 50px; height: 100%; display: flex; align-items: center;">
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<a href="https://github.com/leaningtech/webvm" target="_blank" style="text-decoration: none" >
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<div style="color: white; font-family: montserrat; font-weight: 700; font-size: large;">Github</div>
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</a>
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</li>
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<li style=" margin-right: 50px; height: 100%; display: flex; align-items: center;">
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<a id="loginLink" href="#" onclick="startTailscaleAndGetLogin()" style="text-decoration: none">
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<div id="networkStatus" style="color: white; font-family: montserrat; font-weight: 700; font-size: large;">Tailscale Login</div>
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</a>
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</li>
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</div>
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</div>
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</header>
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<div style="flex-grow:0; flex-shrink: 0; height:1px; width: 100%; background-color: white;">
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</div>
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<main style="display: flex; flex-direction: row; justify-content: space-between; margin:0; height:100%;">
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<div style="flex-grow:1; height:100%;display:inline-block;margin:0;" class="scrollbar" id="console">
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</div>
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</main>
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<script>
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//Utility namespace to group all functionality related to printing (both error and non error) messages
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const color= "\x1b[1;35m";
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const bold= "\x1b[1;37m";
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const underline= "\x1b[94;4m";
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const normal= "\x1b[0m";
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var printOnTerm = {
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getAsciiTitle: function ()
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{
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var title = [
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color + " __ __ _ __ ____ __ " + normal,
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color + " \\ \\ / /__| |_\\ \\ / / \\/ | " + normal,
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color + " \\ \\/\\/ / -_) '_ \\ V /| |\\/| | " + normal,
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color + " \\_/\\_/\\___|_.__/\\_/ |_| |_| " + normal,
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];
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return title;
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},
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getAsciiText: function ()
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{
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var text = [
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"+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+",
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"| |",
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"| WebVM is a server-less virtual Linux environment running fully client-side |",
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"| in HTML5/WebAssembly. |",
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"| |",
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"| In this demo, it runs an unmodified Debian distribution including many |",
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"| native tools and development toolchains. |",
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"| WebVM is powered by the CheerpX virtualization engine, which enables safe, |",
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"| sandboxed client-side execution of x86 binaries on any browser. |",
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"| CheerpX includes an x86-to-WebAssembly JIT compiler, a virtual block-based |",
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"| file system, and a Linux syscall emulator. |",
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"| For more information, see " + underline + "https://medium.com/p/40a60170b361" + normal + " |",
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"| |",
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"| [NEW!] WebVM now supports full TCP and UDP networking via Tailscale, click |",
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"| on Tailscale Login to enable it. |",
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"| Announcement article: <link> |",
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"| |",
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"+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+",
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"",
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" Welcome to WebVM (build CX_VERSION). If unsure, try these examples:",
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"",
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" python3 examples/python3/fibonacci.py ",
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" gcc -o helloworld examples/c/helloworld.c && ./helloworld",
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" objdump -d ./helloworld | less -M",
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" vim examples/c/helloworld.c",
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" curl --max-time 15 parrot.live # requires networking",
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"",
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];
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return text;
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},
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getSharedArrayBufferMissingMessage: function ()
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{
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const text = [
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"",
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"",
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color + "CheerpX could not start" + normal,
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"",
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"CheerpX depends on JavaScript's SharedArrayBuffer, that your browser",
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" does not support.",
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"",
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"SharedArrayBuffer is currently enabled by default on recent",
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" versions of Chrome, Edge, Firefox and Safari.",
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"",
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"",
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"Give it a try from another browser!",
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]
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return text;
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},
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getErrorMessage: function (error_message)
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{
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const text = [
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"",
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"",
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color + "CheerpX could not start" + normal,
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"",
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"CheerpX internal error message is:",
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error_message,
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"",
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"",
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"CheerpX is expected to work with recent desktop versions of Chrome, Edge, Firefox and Safari",
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"",
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"",
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"Give it a try from a desktop version / another browser!",
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]
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return text;
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},
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printMessage: function (text) {
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for (var i=0; i<text.length; i++)
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{
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term.write(text[i]);
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term.write('\n');
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}
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},
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printError: function (message)
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{
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this.printMessage(message);
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term.write("\n\n");
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function writeCustom(something)
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{
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term.write(something);
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}
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},
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};
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var consoleDiv = document.getElementById("console");
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//xterm.js related logic
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var term = new Terminal({cursorBlink:true,convertEol:true, fontFamily:"monospace", fontWeight: 400, fontWeightBold: 700});
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var fitAddon = new FitAddon.FitAddon();
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term.loadAddon(fitAddon);
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term.open(consoleDiv);
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term.scrollToTop();
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fitAddon.fit();
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window.addEventListener("resize", function(ev){fitAddon.fit();}, false);
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term.focus();
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var cxReadFunc = null;
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function writeData(buf)
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{
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term.write(new Uint8Array(buf));
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}
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function readData(str)
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{
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if(cxReadFunc == null)
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return;
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for(var i=0;i<str.length;i++)
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cxReadFunc(str.charCodeAt(i));
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}
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term.onData(readData);
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//Actual CheerpX and bash specific logic
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function runBash()
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{
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const structure = {
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name: "bash",
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cmd: "/bin/bash",
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args: ["--login"],
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env: ["HOME=/home/user", "TERM=xterm", "USER=user", "SHELL=/bin/bash", "EDITOR=vim", "LANG=en_US.UTF-8", "LC_ALL=C"],
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expectedPrompt: ">",
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versionOpt: "--version",
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comment_line: "#",
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description_line: "The original Bourne Again SHell",
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}
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if (typeof SharedArrayBuffer === "undefined")
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{
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printOnTerm.printError(printOnTerm.getSharedArrayBufferMissingMessage());
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return;
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}
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async function runTest(cx)
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{
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term.scrollToBottom();
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async function cxLogAndRun(cheerpx, cmd, args, env)
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{
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await cheerpx.run(cmd, args, env);
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printOnTerm.printMessage(" ");
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}
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cxReadFunc = cx.setCustomConsole(writeData, term.cols, term.rows);
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function preventDefaults (e) {
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e.preventDefault()
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e.stopPropagation()
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}
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consoleDiv.addEventListener("dragover", preventDefaults, false);
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consoleDiv.addEventListener("dragenter", preventDefaults, false);
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consoleDiv.addEventListener("dragleave", preventDefaults, false);
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consoleDiv.addEventListener("drop", preventDefaults, false);
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var opts = {env:structure.env, cwd:"/home/user"};
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while (true)
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{
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await cxLogAndRun(cx, structure.cmd, structure.args, opts);
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}
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}
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function failCallback(err)
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{
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printOnTerm.printError(printOnTerm.getErrorMessage(err));
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}
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CheerpXApp.create({devices:[{type:"block",url:"https://disks.leaningtech.com/webvm_20221004.ext2",name:"block1"}],mounts:[{type:"ext2",dev:"block1",path:"/"},{type:"cheerpOS",dev:"/app",path:"/app"},{type:"cheerpOS",dev:"/str",path:"/data"},{type:"devs",dev:"",path:"/dev"}], networkInterface}).then(runTest, failCallback);
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}
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function initialMessage()
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{
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printOnTerm.printMessage(printOnTerm.getAsciiTitle());
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printOnTerm.printMessage(["\n"]);
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printOnTerm.printMessage(printOnTerm.getAsciiText());
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term.registerLinkMatcher(/https:\/\/medium\.com\/p\/40a60170b361/, function(mouseEvent, matchedString) {
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window.open(matchedString, "_blank")
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});
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term.registerLinkMatcher(/https:\/\/github.com\/leaningtech\/webvm/, function(mouseEvent, matchedString) {
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window.open(matchedString, "_blank")
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});
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term.registerLinkMatcher(/https:\/\/discord.leaningtech.com/, function(mouseEvent, matchedString) {
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window.open(matchedString, "_blank")
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});
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console.log("Welcome. We appreciate curiosity, but be warned that keeping the DevTools open causes significant performance degradation and crashes.");
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}
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initialMessage();
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var script = document.createElement('script');
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script.type = 'text/javascript';
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var cxFile = "https://cheerpxdemos.leaningtech.com/publicdeploy/CX_VERSION/cx.js";
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script.src = cxFile;
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script.addEventListener("load", runBash, false);
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document.head.appendChild(script);
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</script>
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</body>
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</html>
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