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Node.js + Socket.io + Bash. A collaborative terminal for your browser.
//
// This server will start a bash shell and expose it
// over socket.io to a browser. See ./term.html for the
// client side.
//
// You should probably:
//
// npm install socket.io
// curl -O https://github.com/LearnBoost/Socket.IO/raw/master/socket.io.min.js
//
// To get socket.io in the node_modules directory and
// the socket.io.min.js file needed for the client.
//
// To start the server:
//
// node server.js
//
// And then load up your term!
//
// open http://`hostname`:8080/term.html
//
// You can even share the url with a friend on your
// local network. Be sure they're a friend though :-)
//
var http = require('http'),
url = require('url'),
path = require('path'),
fs = require('fs'),
io = require('./node_modules/socket.io'),
sys = require('sys'),
util = require('util'),
spawn = require('child_process').spawn;
var sh = spawn('bash');
sh.stdout.on('data', function(data) {
listener.broadcast(data);
});
sh.stderr.on('data', function(data) {
listener.broadcast(data);
});
sh.on('exit', function (code) {
listener.broadcast('** Shell exited: '+code+' **');
});
server = http.createServer(function(request, response){
var uri = url.parse(request.url).pathname;
var filename = path.join(process.cwd(), uri);
path.exists(filename, function(exists) {
if (!exists) {
response.writeHead(404, {'Content-Type':'text/plain'});
response.end("Can''t find it...");
}
fs.readFile(filename, 'binary',function(err, file){
if (err) {
response.writeHead(500, {'Content-Type':'text/plain'});
response.end(err + "\n");
return;
}
response.writeHead(200);
response.write(file, 'binary');
response.end();
});
});
}
);
server.listen(8080);
var listener = io.listen(server);
listener.on('connection', function(client){
client.on('message', function(data){
sh.stdin.write(data+"\n");
listener.broadcast(new Buffer("> "+data));
});
});
<!doctype html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script src="socket.io.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
function add_content(str){
console.log(str);
$('div').append('<p>' + $('<div/>').text(str).html() + '</p>');
$(window).scrollTop($('body').height() - $(window).height() + 80);
}
var socket = new io.Socket(null, {rememberTransport: false, port: 8080});
socket.connect();
socket.addEvent('message', function(data) {
add_content($.map(data, function(e,i) {
return String.fromCharCode(e);
}).join(''));
});
$(function(){
$('form').submit(function(e){
var input = $('input');
socket.send(input.val());
input.val('');
return false;
});
$('input').focus();
});
</script>
<style type="text/css">
body, p, input {
font-family: fixed;
font-size: 13px;
border: none;
}
p { white-space: pre; }
p, form, input { margin:0; padding:0; }
input:focus { outline: none; border: none; }
</style>
</head>
<body>
<div></div>
<form>
&gt; <input>
</form>
</body>
</html>
@joshwentz

path.exists is now called fs.exists
server.js line 52

@joshwentz

each command sent through term.html results in: info - unhandled socket.io url
http://stackoverflow.com/questions/7069202/info-unhandled-socket-io-url suggested it's a socket.io API update, but haven't figured it out

any suggestions mixonic?

@ambrosechua

Anyway, a good piece of code.

@Thatkookooguy

All I get when I try to run node server.js is this error message:
events.js:72
throw er; // Unhandled 'error' event
^
Error: spawn ENOENT
at errnoException (child_process.js:1011:11)
at Process.ChildProcess._handle.onexit (child_process.js:802:34)

any idea what's not working right?
(followed the instructions in the comment of server.js

thanks!

@melvinroest
melvinroest commented Feb 15, 2017 edited

I refactored it with Express (in a quick and dirty way) and updated the method calls of socket-io.
See: https://github.com/melvinroest/browserbash

What's the license? Is it MIT? Then I can incorporate it as well :)

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