I am attempting to create a web terminal that connects to a remote host and allows the running of normal terminal commands. I have it able to connect to the remote server and to my understanding stream.write(data) should be what triggers the command to be run on the remote server and return the output, however I get the input returned to the frontend instead.
term.html
<!doctype html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script src="/socket.io/socket.io.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
var socket = io.connect('http://localhost:8080', {query: 'host=IP_Address&port=22&username=user&password=password'});
// Display the resonse from the server
function add_content(str){
console.log(str);
$('div').append('<p>' + $('<div/>').text(str).html() + '</p>');
$(window).scrollTop($('body').height() - $(window).height() + 80);
}
// Backend -> Browser
socket.on('server_data', function(data) {
add_content(data);
});
// Disconnect message
socket.on('disconnect', function() {
add_content('\r\n*** Disconnected from backend***\r\n');
});
// Browser -> Backend
$(function(){
$('form').submit(function(e){
e.preventDefault();
var input = $('input');
socket.emit('client_data', 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>
> <input>
</form>
</body>
</html>
server.js
var app = require('http').createServer(handler)
var io = require('socket.io')(app);
var fs = require('fs');
var SSHClient = require('ssh2').Client;
var listener = app.listen(8080);
var current_directory = null;
function handler (req, res) {
fs.readFile(__dirname + '/term.html',
function (err, data) {
if (err) {
res.writeHead(500);
return res.end('Error loading term.html');
}
res.writeHead(200);
res.end(data);
});
}
io.on('connection', function(socket) {
var conn = new SSHClient();
conn.on('ready', function() {
socket.emit('server_data', '\r\n*** SSH CONNECTION ESTABLISHED ***\r\n');
conn.shell(function(err, stream) {
if (err)
return socket.emit('server_data', '\r\n*** SSH SHELL ERROR: ' + err.message + ' ***\r\n');
socket.on('client_data', function(data) {
stream.write(data);
});
stream.on('data', function(data) {
socket.emit('server_data', data.toString('binary'));
//console.log('STDOUT: ' + data);
}).stderr.on('data', function(data){
//console.log('STDERR: ' + data);
socket.emit('server_data', data.toString('binary'));
}).on('close', function() {
conn.end();
});
});
}).on('close', function() {
socket.emit('server_data', '\r\n*** SSH CONNECTION CLOSED ***\r\n');
}).on('error', function(err) {
socket.emit('server_data', '\r\n*** SSH CONNECTION ERROR: ' + err.message + ' ***\r\n');
}).connect({
host: socket.handshake.query.host,
port: socket.handshake.query.port,
username: socket.handshake.query.username,
password: socket.handshake.query.password
});
});
\nat the end (to simulate the pressing of the 'enter' key) of the input/command since you're using.shell(), which is an interactive shell. Try:stream.write(data + '\n')