Run shell(bash, zsh, sh...) as a child process in node.js - node.js

Question

I'm making an online shell to access my computer from another computer or device. I can run any program, sending and receiving stdio data using socket.io. I run the programs using execFile() from child_process. The problem is that, when I try to run bash, sh, zsh, csh or any other shell it just doesn't work, no error message or anything. How can I run a shell as a child process in node.js(prefer using execFile, but it doesn't matter)? This is the code I'm using:
Server:
let fs = require("fs");
let socket = require("socket.io");
let express = require("express");
let stringio = require("#rauschma/stringio");
let childprocess = require("child_process");
let app = express();
app.use(express.static("public"));
let server = app.listen(3000);
console.log("Server running!");
let io = socket(server);
io.sockets.on("connection", connectionListener);
function connectionListener(socket) {
console.log("New client!");
let child = childprocess.execFile("bash", ["test.sh"], {
stdio: [process.stdin, process.stdout, process.stderr]
});
socket.on("stdin-packet", sendtochild);
function sendtochild(packet) {
child.stdin.write(packet.rawtext);
}
child.stdout.on('data', function(data) {
let packet = {
rawtext: data.toString()
};
socket.emit("stdout-packet", packet);
console.log("Packet sended!");
});
}
Client:
let socket = io.connect("localhost:3000");
function TerminalScreen(width, height) {
this.width = width;
this.height = height;
this.chars = "";
this.print = function(text) {
let isansi = false;
for (let i = 0; i < text.length; i++) {
if (text.charCodeAt(i) == 27) {
isansi = true;
} else if (text.charAt(i) == 'm' || text.charAt(i) == 'K' || text.charAt(i) == 'H' || text.charAt(i) == 'f' || text.charAt(i) == 'J') {
if (isansi) {
isansi = false;
} else {
this.chars += text.charAt(i);
}
} else if (!isansi) {
this.chars += text.charAt(i);
}
}
this.chars = this.chars.replace("\n", "<br>");
}
this.clear = function() {
this.chars = "";
}
this.update = function() {
document.getElementById("terminal-div").innerHTML = this.chars;
}
}
let screen = new TerminalScreen();
socket.on("stdout-packet", packetReceived);
function packetReceived(packet) {
screen.print(packet.rawtext);
screen.update();
}
document.onkeypress = function (e) {
e = e || window.event;
let packet = {
rawtext: String.fromCharCode(e.keyCode)
};
socket.emit("stdin-packet", packet);
};

Answer 1

Most likely, because bash detects it's not running in a pseudo terminal (pty), it assumes it is running non-interactively. You can either create a full pseudo terminal (which things like expect or ssh will do), or you may be able to force it with the -i flag.

Answer 2

Using the node-pty package works for me.