ICGLabelServer/ICGLabelServer.js

var ws = require("nodejs-websocket");
var querystring   = require('querystring');
var url= require("url");
var exec = require('child_process').exec;

var WSserver = ws.createServer(function (conn) {
    console.log("New connection");
    console.log(conn);
    conn.on("text", function (str) {
        console.log("Received "+str);
        conn.sendText(str.toUpperCase()+"!!!");
	broadcast(WSserver, str);
    })
    conn.on("close", function (code, reason) {
        console.log("Connection closed")
    })
}).listen(8080);

function broadcast(server, msg) {
    server.connections.forEach(function (conn) {
        conn.sendText(msg)
    })
}

var http = require('http');
var HTMLserver = http.createServer(function(request, response) {
    console.log((new Date()) + ' Received request for ' + request.url);
    var myQuery= url.parse(request.url, true);
    console.log(myQuery);
    if(myQuery.query.command=="webReboot"){
       console.log("will try to reboot lighttpd");
        exec('systemctl stop lighttpd && systemctl start lighttpd', function(error, stdout, stderr) {
		if(error){
			console.error(`exec error: ${error}`);
			return;
		}
        });
    }
    if(request.method == 'POST') {
        processPost(request, response, function() {
            response.writeHead(200, "OK", {'Content-Type': 'text/plain'});
            response.end();
	    broadcast(WSserver, JSON.stringify(request.post));
       })
    } else {
	response.writeHead(404);
	response.end();
   }
});
HTMLserver.listen(8081, function() {
    console.log((new Date()) + ' HTMLServer is listening on port 8081');
});


function processPost(request, response, callback) {
    var queryData = "";
    if(typeof callback !== 'function') return null;
    if(request.method == 'POST') {
        request.on('data', function(data) {
            queryData += data;
            if(queryData.length > 1e6) {
                queryData = "";
                response.writeHead(413, {'Content-Type': 'text/plain'}).end();
                request.connection.destroy();
            }
        });
        request.on('end', function() {
            request.post = querystring.parse(queryData);
            callback();
        });
    } else {
        response.writeHead(405, {'Content-Type': 'text/plain'});
        response.end();
    }
}