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-<!DOCTYPE html>
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-<html lang="en" style="height:100%;">
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- <meta property="og:image" content="https://webvm.io/assets/reddit.png"/>
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- <head>
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- <meta charset="utf-8">
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- <meta name="viewport" content="width=1100, initial-scale=1.0">
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- <title>WebVM - Linux virtualization in WebAssembly</title>
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-
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- <meta name="description" content="Server-less virtual machine, networking included, running browser-side in HTML5/WebAssembly. Code in any programming language inside this Linux terminal.">
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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 virtualization in WebAssembly" />
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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:image" content="https://webvm.io/assets/social.png" />
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- <meta name="twitter:card" content="summary_large_image" />
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- <meta name="twitter:site" content="@leaningtech" />
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- <meta name="twitter:title" content="WebVM - Linux virtualization in WebAssembly" />
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- <meta name="twitter:description" content="Server-less virtual machine, networking included, running browser-side in HTML5/WebAssembly. Code in any programming language inside this Linux terminal.">
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- <meta name="twitter:image" content="https://webvm.io/assets/social.png" />
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-
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- <!-- Apple iOS web clip compatibility tags -->
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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.ico">
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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="https://cdnjs.cloudflare.com/ajax/libs/github-fork-ribbon-css/0.2.3/gh-fork-ribbon.min.css" />
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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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- <style>.github-fork-ribbon:before { background-color: #ea1e69; }</style>
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- <!-- Serviceworker script that adds the COI and CORS headers to the response headers in cases where the server does not support it. -->
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- <script src="serviceWorker.js"></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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- <script src="./xterm/xterm-addon-web-links.js"></script>
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- <script src="network.js"></script>
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- <script defer data-domain="webvm.io" src="https://plausible.leaningtech.com/js/script.js"></script>
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- </head>
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-
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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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- <a class="github-fork-ribbon right-bottom" href="https://github.com/leaningtech/webvm/" target="_blank" data-ribbon="Fork me on GitHub" title="Fork me on GitHub">Fork me on GitHub</a>
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- <div>
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- <div style="padding-top: 0.7em;padding-bottom: 0.7em;font-size: 0.3em; font-weight: 200;vertical-align:center;height: 120px;">
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- <div style="margin-left: 20px; height: 100%; display: flex; align-items: center; justify-content: space-between;">
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- <pre style="font-family: monospace; font-weight: 600; font-size: large; color: #ad7fa8;">
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-
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-__ __ _ __ ____ __
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-\ \ / /__| |_\ \ / / \/ |
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- \ \/\/ / -_) '_ \ V /| |\/| |
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- \_/\_/\___|_.__/\_/ |_| |_|
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- </pre>
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- <div style="height:100%;display: flex; flex-direction: column;justify-content: space-between;">
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- <div style="padding-top: 0.7em;font-size: 0.3em; font-weight: 200;vertical-align:center;height:50px;">
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- <div style="margin-right: 10px; margin-left: 20px; height: 100%; display: flex; align-items: center; justify-content: flex-end;gap: 50px;">
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- <div style="padding-top: 0.7em;font-size: 0.3em; font-weight: 200;vertical-align:center;">
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- <a href="https://leaningtech.com" style="text-decoration: none; height: 100%;" target="_blank">
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <span>Made with ❤️ by </span>
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- <img src="assets/leaningtech.png" height="40px" style="margin-left: 5px;">
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- </div>
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- </a>
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- </div>
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- </div>
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- </div>
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- <div style="padding-top: 0.7em;font-size: 0.3em; font-weight: 200;vertical-align:center;height:50px;">
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- <div style="margin-right: 10px; margin-left: 20px; height: 100%; display: flex; align-items: center; justify-content: flex-end;gap: 50px;">
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <span>CPU </span>
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- <span id="cpuactivity" style="margin-left: 7px;">🟢</span>
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- </div>
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <span>HDD </span>
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- <span id="hddactivity" style="margin-left: 7px;">🟢</span>
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- </div>
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- <a id="loginLink" style="user-select: text ;text-decoration: none; height: 100%;">
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <div style="position: relative;">
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- <span style="cursor: pointer" id="networkStatus">Connect via Tailscale </span>
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- <span style="cursor: pointer; position: absolute; right: 0px; visibility: hidden;" id="ipCopied">Copied! </span>
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- </div>
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- <img src="assets/tailscale.svg" height="35px" style="margin-left: 7px;">
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- </div>
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- </a>
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- <a href="https://discord.gg/yTNZgySKGa" style="text-decoration: none; height: 100%;" target="_blank">
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <span>Join Discord </span>
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- <img src="assets/discord-mark-blue.svg" height="35px" style="margin-left: 7px;">
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- </div>
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- </a>
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- <a href="https://github.com/leaningtech/webvm/issues" style="text-decoration: none; height: 100%;" target="_blank">
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- <div style="color: white; font-family: montserrat; font-weight: 400; font-size: large; height: 100%; display: flex; align-items: center;">
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- <span>GitHub Issues </span>
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- <img src="assets/github-mark-white.svg" height="35px" style="margin-left: 5px;">
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- </div>
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- </a>
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- </div>
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- </div>
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- </div>
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- </div>
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- </div>
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- </div>
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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: 5px; 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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-
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- </main>
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- <script>
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-
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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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- 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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- "| 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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- "| |",
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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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- "| |",
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- "| Your own WebVM with custom images via Dockerfile: |",
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- "| |",
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- "| " + underline + "https://leaningtech.com/mini-webvm-your-linux-box-from-dockerfile-via-wasm" + normal +" |",
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- "| |",
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- "| Join WebVM: The Hackathon (11-14 October 2024) |",
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- "| |",
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- "| " + underline + "https://cheerpx.io/hackathon" + normal + " |",
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- "| |",
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- "+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+",
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- "",
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- " Welcome to WebVM. 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 isCustom = window.location.hostname !== "webvm.io";
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- const isSecureContext = window.isSecureContext;
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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 uses SharedArrayBuffer, which is not available right now.",
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- "",
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- !isSecureContext && " - This page is not in a secure context. Serve over HTTPS or WSS.",
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- !isSecureContext && " " + underline + "https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts" + normal,
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- isCustom && " - The document is not cross-origin isolated.",
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- isCustom && " " + underline + "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer#security_requirements" + normal,
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- " - Your browser might not support SharedArrayBuffer.",
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- " Since 2022, all major browsers support this feature.",
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- " " + underline + "https://caniuse.com/sharedarraybuffer" + normal,
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- ].filter(Boolean);
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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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-
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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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-
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- term.write("\n\n");
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-
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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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-
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- var consoleDiv = document.getElementById("console");
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-
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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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- var linkAddon = new WebLinksAddon.WebLinksAddon();
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- term.loadAddon(linkAddon);
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- term.open(consoleDiv);
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- term.scrollToTop();
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-
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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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-
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- function hddCallback(state)
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- {
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- var h = document.getElementById("hddactivity");
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- if(state == "ready")
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- h.textContent = "\u{1F7E2}";
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- else
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- h.textContent = "\u{1F7E0}";
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- }
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- function cpuCallback(state)
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- {
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- var h = document.getElementById("cpuactivity");
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- if(state == "ready")
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- h.textContent = "\u{1F7E2}";
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- else
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- h.textContent = "\u{1F7E0}";
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- }
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-
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- //Actual CheerpX and bash specific logic
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- async function runBash()
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- {
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- // cmd, cwd, args and env are replaced by the Github actions workflow.
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- var cmd = CMD;
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- var args = ARGS;
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- var env = ENV;
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- var cwd = CWD;
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- var device_type = DEVICE_TYPE;
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- var image_url = IMAGE_URL;
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- // Reasonable defaults for local deployments
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- // var cmd = "/bin/bash";
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- // var args = ["--login"];
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- // var 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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- // var cwd = "/home/user";
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- // var device_type = "bytes";
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- // var image_url = "/your_local_image.ext2";
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- const structure = {
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- cmd: cmd,
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- args: args,
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- env: env,
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- cwd: cwd
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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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-
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- let networkInterface = setupNetworkInterface();
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-
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- async function runTest(cx)
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- {
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- var processCount = 0;
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- function handleProcessCreated()
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- {
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- processCount++;
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- plausible(`Process started: ${processCount}`);
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- if(processCount == 5)
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- {
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- // Make sure no further event is reported
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- cx.unregisterCallback("processCreated", handleProcessCreated);
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- }
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- }
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- cx.registerCallback("processCreated", handleProcessCreated);
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- cx.registerCallback("cpuActivity", cpuCallback);
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- cx.registerCallback("diskActivity", hddCallback);
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- registerNetworkLogin(cx, networkInterface);
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-
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- term.scrollToBottom();
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-
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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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-
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- cxReadFunc = cx.setCustomConsole(writeData, term.cols, term.rows);
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-
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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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-
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- var opts = {env:structure.env, cwd:structure.cwd, uid: 1000, gid: 1000};
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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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- // The device url and type are replaced by Github Actions.
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- var blockDevice;
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- switch (device_type)
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- {
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- case "cloud":
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- try
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- {
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- blockDevice = await CheerpX.CloudDevice.create(image_url);
|
|
|
- }
|
|
|
- catch(e)
|
|
|
- {
|
|
|
- // Report the failure and try again with plain HTTP
|
|
|
- var wssProtocol = "wss:";
|
|
|
- if(image_url.startsWith(wssProtocol))
|
|
|
- {
|
|
|
- // WebSocket protocol failed, try agin using plain HTTP
|
|
|
- plausible("WS Disk failure");
|
|
|
- image_url = "https:" + image_url.substr(wssProtocol.length);
|
|
|
- blockDevice = await CheerpX.CloudDevice.create(image_url);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- // No other recovery option
|
|
|
- throw e;
|
|
|
- }
|
|
|
- }
|
|
|
- break;
|
|
|
- case "bytes":
|
|
|
- try
|
|
|
- {
|
|
|
- blockDevice = await CheerpX.HttpBytesDevice.create(image_url);
|
|
|
- }
|
|
|
- catch(e)
|
|
|
- {
|
|
|
- printOnTerm.printError([e]);
|
|
|
- throw e;
|
|
|
- }
|
|
|
- break;
|
|
|
- case "github":
|
|
|
- blockDevice = await CheerpX.GitHubDevice.create(image_url);
|
|
|
- break;
|
|
|
- default:
|
|
|
- console.log("Unrecognized device type");
|
|
|
- return;
|
|
|
- }
|
|
|
- var overlayDevice = await CheerpX.OverlayDevice.create(blockDevice, await CheerpX.IDBDevice.create("block1"));
|
|
|
- var webDevice = await CheerpX.WebDevice.create("");
|
|
|
- var dataDevice = await CheerpX.DataDevice.create();
|
|
|
- CheerpX.Linux.create({mounts:[{type:"ext2",dev:overlayDevice,path:"/"},{type:"dir",dev:webDevice,path:"/app"},{type:"dir",dev:dataDevice,path:"/data"},{type:"devs",path:"/dev"},{type:"proc",path:"/proc"}], networkInterface: networkInterface}).then(runTest, failCallback);
|
|
|
- }
|
|
|
- function initialMessage()
|
|
|
- {
|
|
|
- printOnTerm.printMessage(printOnTerm.getAsciiText());
|
|
|
- console.log("Welcome. We appreciate curiosity, but be warned that keeping the DevTools open causes significant performance degradation and crashes.");
|
|
|
- }
|
|
|
- initialMessage();
|
|
|
- async function loadCX()
|
|
|
- {
|
|
|
- // Find the latest build
|
|
|
- var r = await fetch("https://cxrtnc.leaningtech.com/LATEST.txt");
|
|
|
- var url = await r.text();
|
|
|
- url = url.trim();
|
|
|
- var script = document.createElement('script');
|
|
|
- script.type = 'text/javascript';
|
|
|
- script.src = url;
|
|
|
- script.addEventListener("load", runBash, false);
|
|
|
- document.head.appendChild(script);
|
|
|
- }
|
|
|
- loadCX();
|
|
|
- </script>
|
|
|
- </body>
|
|
|
-</html>
|
|
|
-
|
Alessandro Pignotti