0ct0pu5
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webvm


			
				
					
						
						
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    <title>WebVM - Linux virtualization in WebAssembly</title>

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__      __   _  __   ____  __
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				color + "                        \\ \\    / /__| |_\\ \\ / /  \\/  | " + normal,
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			var text = [
				"+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+",
				"|                                                                             |",
				"| WebVM is a server-less virtual Linux environment running fully client-side  |",
				"| in HTML5/WebAssembly.                                                       |",
				"|                                                                             |",
				"| WebVM is powered by the CheerpX virtualization engine, which enables safe,  |",
				"| sandboxed client-side execution of x86 binaries on any browser.             |",
				"|                                                                             |",
				"| CheerpX includes an x86-to-WebAssembly JIT compiler, a virtual block-based  |",
				"| file system, and a Linux syscall emulator.                                  |",
				"|                                                                             |",
				"| [NEW!] Your own WebVM with custom images via Dockerfile:                    |",
				"|                                                                             |",
				"| " + underline + "https://leaningtech.com/mini-webvm-your-linux-box-from-dockerfile-via-wasm" + normal +"  |",
				"|                                                                             |",
				"+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+",
				"",
				"   Welcome to WebVM. If unsure, try these examples:",
				"",
				"     python3 examples/python3/fibonacci.py ",
				"     gcc -o helloworld examples/c/helloworld.c && ./helloworld",
				"     objdump -d ./helloworld | less -M",
				"     vim examples/c/helloworld.c",
				"     curl --max-time 15 parrot.live  # requires networking",
				"",
				];
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				"  - Your browser might not support SharedArrayBuffer.",
				"    Since 2022, all major browsers support this feature.",
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				"",
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				"",
				"CheerpX internal error message is:",
				error_message,
				"",
				"",
				"CheerpX is expected to work with recent desktop versions of Chrome, Edge, Firefox and Safari",
				"",
				"",
				"Give it a try from a desktop version / another browser!",
				]

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	//xterm.js related logic
	var term = new Terminal({cursorBlink:true,convertEol:true, fontFamily:"monospace", fontWeight: 400, fontWeightBold: 700});
	var fitAddon = new FitAddon.FitAddon();
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	term.onData(readData);

	//Actual CheerpX and bash specific logic
	function runBash()
	{
		// cmd, cwd, args and env are replaced by the Github actions workflow.
		var cmd = CMD;
		var args = ARGS;
		var env = ENV;
		var cwd = CWD;
		// Reasonable defaults for local deployments
		// var cmd = "/bin/bash";
		// var args = ["--login"];
		// var env = ["HOME=/home/user", "TERM=xterm", "USER=user", "SHELL=/bin/bash", "EDITOR=vim", "LANG=en_US.UTF-8", "LC_ALL=C"];
		// var cwd = "/home/user";
		const structure = {
			cmd: cmd,
			args: args,
			env: env,
			cwd: cwd
		}
		if (typeof SharedArrayBuffer === "undefined")
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			printOnTerm.printError(printOnTerm.getSharedArrayBufferMissingMessage());
			return;
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		let networkInterface = setupNetworkInterface();

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			registerNetworkLogin(cx, networkInterface);

			term.scrollToBottom();

			async function cxLogAndRun(cheerpx, cmd, args, env)
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			consoleDiv.addEventListener("drop", preventDefaults, false);

			var opts = {env:structure.env, cwd:structure.cwd, uid: 1000, gid: 1000};
			while (true)
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			}
		}
		function failCallback(err)
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			printOnTerm.printError(printOnTerm.getErrorMessage(err));
		}
		function devCallback(state)
		{
			var h = document.getElementById("hddactivity");
			if(state == "ready")
				h.textContent = "\u{1F7E2}";
			else
				h.textContent = "\u{1F7E0}";
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		function cpuCallback(state)
		{
			var h = document.getElementById("cpuactivity");
			if(state == "ready")
				h.textContent = "\u{1F7E2}";
			else
				h.textContent = "\u{1F7E0}";
		}
		// The device url and type are replaced by Github Actions.
		CheerpXApp.create({devices:[{type:DEVICE_TYPE,url:IMAGE_URL,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: networkInterface, activityInterface: {cpu: cpuCallback, dev: devCallback}}).then(runTest, failCallback);
	}
	function initialMessage()
	{
		printOnTerm.printMessage(printOnTerm.getAsciiText());
		term.registerLinkMatcher(/https:\/\/leaningtech.com\/[a-z-]+/, function(mouseEvent, matchedString) {
			window.open(matchedString, "_blank")
		});
		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://cheerpxdemos.leaningtech.com/publicdeploy/LATEST.txt");
		var url = await r.text();
		url = url.trim();
		var script = document.createElement('script');
		script.type = 'text/javascript';
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		script.addEventListener("load", runBash, false);
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