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index.js
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index.js
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var express = require('express');
var http = require('http');
var bodyParser = require('body-parser');
var ejs = require('ejs');
var qs = require('querystring');
var path = require('path');
var session = require('express-session');
var cookieParser = require('cookie-parser');
var crypto = require('crypto');
var app = express();
var expressWs = require('express-ws')(app);
let arduino_switch = "OFF";
let arduinoSocket;
var urlencodedParser = bodyParser.urlencoded({ extended: false })
app.use(session({
key: 'user_sid',
secret: 'somerandonstuffs',
resave: true,
saveUninitialized: false,
}));
var sessionChecker = (req, res, next) => {
if (req.session.user) {
res.redirect('/');
} else {
next();
//res.redirect('/login');
}
};
var sessionCheckerHome = (req, res, next) => {
if (!req.session.user) {
res.redirect('/login');
} else {
next();
//res.redirect('/login');
}
};
app.get('/', sessionCheckerHome, function(req, res){
//arduinoSocket.send(arduino_switch);
res.sendFile('views/home.html' , { root : __dirname});
//res.sendFile('../views/home.html', {root: __dirname});
//res.sendFile('./views/home.html');
})
let username = "admin";
let password = "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8";
app.get('/login', sessionChecker, function(req, res){
res.sendFile('views/login.html', {root : __dirname});
})
app.post('/login',urlencodedParser,function(req, res){
let usr = req.body.name;
let passwd = req.body.password;
//console.log(passwd);
passwd = crypto.createHash('sha256').update(passwd).digest('hex');
console.log(passwd);
if(usr===username && passwd==password)
{
req.session.user = username;
res.redirect('/');
}
else
{
res.redirect('/login');
}
})
const activeConnections = [];
app.ws('/arduino', function(ws, req) {
arduinoSocket = ws;
ws.on('message', function(msg) {
console.log(msg);
if(msg[0]==='T' || msg[0]==='H')
{
activeConnections.forEach((socket)=>{
try{
socket.send(msg);
}catch(e){}
});
}
});
console.log('socket', req.testing);
});
//const activeConnections = [];
app.ws('/admin', function(ws, req) {
activeConnections.push(ws);
if(arduino_switch==="OFF")
ws.send("ON");
else if(arduino_switch==="ON")
ws.send("OFF");
ws.on('message', function(msg) {
arduino_switch = msg;
if(arduinoSocket)
{
arduinoSocket.send(msg);
}
console.log(arduino_switch);
console.log(`sending to ${activeConnections.length} connections`);
activeConnections.forEach((socket)=>{
try{
if(arduino_switch==="OFF")
socket.send("ON");
else if(arduino_switch==="ON")
socket.send("OFF");
}catch(e){}
});
});
console.log('socket', req.testing);
});
// let i = 0;
// var interval = setInterval(function() {
// activeConnections.forEach((socket)=>{
// try{
// socket.send(`T ${i}`);
// socket.send(`H ${i}`);
// }catch(e){}
// });
// i++;
// if(i>20)
// i=0;
// }, 2000);
var port = process.env.PORT || 8080;
app.listen(port);