kuznetsovandrey76/home.hbs

## home.hbs
<input type="hidden" name="act" id="act" value="login">
<input type="text" name="login" id="login" value="" placeholder="login">
<input type="password" name="pass" id="pass" value="" placeholder="password">
<input type="submit" id="submit" value="Send">
    <input type="submit" id="vk" value="vk">
<script>
$(document).ready(function() {
	$('#vk').click(function() {
		window.location = '/auth/vk'
	});
	$('#submit').click(function() {
        var login = $('#login').val(),
            pass = $('#pass').val();

		$.ajax({
		  url: "/login",
		  method: "post",
		  data: {login: login, pass: pass},
		  beforeSend: function(jqXHR, settings) {
                window.location = '/login'
		  },
		  success: function(data, textStatus, jqXHR){
		    // console.log(data);
		  }
		});
	});
});
</script>

## login.hbs
<div>
	login: {{login}}, password: {{pass}}
</div>
<script>
	var login = '{{login}}',
	    pass = '{{pass}}';

    document.cookie = "login=" + login;
    document.cookie = "pass=" + pass;
</script>

## main.hbs
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
	{{{body}}}
</body>
</html>

## package.json
{
  "name": "learn",
  "version": "1.0.0",
  "description": "server login",
  "main": "server.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node server.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "*",
    "express-handlebars": "*",
    "crypto": "*",
    "passport": "*",
    "passport-vkontakte": "*",
    "cookie-parser": "*",
    "express-session": "*"
  }
}

## server.js
var express = require('express'),
	crypto = require('crypto'),
	bodyParser = require('body-parser'),
	hbs  = require('express-handlebars'),
	passport  = require('passport'),
	authVK  = require('passport-vkontakte').Strategy,
	users = require('./users'),
	app = express();

app.engine('hbs', hbs({extname: 'hbs', defaultLayout: 'main', layoutsDir: './views/layouts/'}));
app.set('views', './views');
app.set('view engine', 'hbs');

app.use(require('cookie-parser')());
app.use(require('express-session')({secret:'keyboard cat', resave: true, saveUninitialized: true}));
app.use(require('body-parser').urlencoded({extended: true}));
app.use(passport.initialize());
app.use(passport.session());

passport.use(new authVK(
  {
    clientID:     6498230,
    clientSecret: 'Pn7rFqL7sPoY1kbgQyGL',
    callbackURL:  "http://localhost:3000/auth/vkontakte/callback"
  },
  function myVerifyCallbackFn(accessToken, refreshToken, profile, done) {
  		var user = {
            nickname: profile.username,   // kuznetsovandrey76
            username: profile.displayName // Andrey Kuznetsov
  		}

  		// Объект записывается в req
  		return done(null, user);
    }
));

passport.serializeUser(function (user, done) {
    done(null, JSON.stringify(user));
});

passport.deserializeUser(function (data, done) {
    try {
        done(null, JSON.parse(data));
    } catch (e) {
        done(err)
    }
});

app.get('/auth/vkontakte/callback',
  passport.authenticate('vkontakte', { failureRedirect: '/login' }),
  function (req, res) {
    // Successful authentication, redirect login.
    res.render('login', {login: req.user.nickname});
});

app.get('/', function (req, res) {
  res.render('home');
});

var info = {
	login: "",
	pass: "",
	toString: function() {
		return this.login + "=" + this.pass;
	}
};

app.post('/login', function(req, res) {
	info.login = req.body.login;
	info.pass = req.body.pass;

	// crypto
	// var secret = 'salt',
	// info.pass = crypto.createHmac('sha256', secret)
	                   // .update(req.body.pass)
	                   // .digest('hex');
});

app.get('/login', function (req, res) {
	var current_time = new Date().toString().slice(4, 24),
		check_name = users.indexOf(info.toString());

	if(check_name != -1) {
		// Вывод в логи
		console.log("login:" + info.login + " sign in " + current_time);
		res.render('login', {login: info.login, pass: info.pass});
	} else {
		console.log('ERR');
		res.redirect('/');
	}
});

app.listen(3000, function () {
  console.log('Express запущен на http://localhost:3000');
});

## users.js
var users = [
	"login=pass",
	"andrey=123"
];

module.exports = users;
	<input type="hidden" name="act" id="act" value="login">
	<input type="text" name="login" id="login" value="" placeholder="login">
	<input type="password" name="pass" id="pass" value="" placeholder="password">
	<input type="submit" id="submit" value="Send">
	<input type="submit" id="vk" value="vk">
	<script>
	$(document).ready(function() {
	$('#vk').click(function() {
	window.location = '/auth/vk'
	});
	$('#submit').click(function() {
	var login = $('#login').val(),
	pass = $('#pass').val();

	$.ajax({
	url: "/login",
	method: "post",
	data: {login: login, pass: pass},
	beforeSend: function(jqXHR, settings) {
	window.location = '/login'
	},
	success: function(data, textStatus, jqXHR){
	// console.log(data);
	}
	});
	});
	});
	</script>
	<div>
	login: {{login}}, password: {{pass}}
	</div>
	<script>
	var login = '{{login}}',
	pass = '{{pass}}';

	document.cookie = "login=" + login;
	document.cookie = "pass=" + pass;
	</script>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
	</head>
	<body>
	{{{body}}}
	</body>
	</html>
	{
	"name": "learn",
	"version": "1.0.0",
	"description": "server login",
	"main": "server.js",
	"scripts": {
	"test": "echo \"Error: no test specified\" && exit 1",
	"start": "node server.js"
	},
	"author": "",
	"license": "ISC",
	"dependencies": {
	"express": "*",
	"express-handlebars": "*",
	"crypto": "*",
	"passport": "*",
	"passport-vkontakte": "*",
	"cookie-parser": "*",
	"express-session": "*"
	}
	}
	var express = require('express'),
	crypto = require('crypto'),
	bodyParser = require('body-parser'),
	hbs = require('express-handlebars'),
	passport = require('passport'),
	authVK = require('passport-vkontakte').Strategy,
	users = require('./users'),
	app = express();

	app.engine('hbs', hbs({extname: 'hbs', defaultLayout: 'main', layoutsDir: './views/layouts/'}));
	app.set('views', './views');
	app.set('view engine', 'hbs');

	app.use(require('cookie-parser')());
	app.use(require('express-session')({secret:'keyboard cat', resave: true, saveUninitialized: true}));
	app.use(require('body-parser').urlencoded({extended: true}));
	app.use(passport.initialize());
	app.use(passport.session());

	passport.use(new authVK(
	{
	clientID: 6498230,
	clientSecret: 'Pn7rFqL7sPoY1kbgQyGL',
	callbackURL: "http://localhost:3000/auth/vkontakte/callback"
	},
	function myVerifyCallbackFn(accessToken, refreshToken, profile, done) {
	var user = {
	nickname: profile.username, // kuznetsovandrey76
	username: profile.displayName // Andrey Kuznetsov
	}

	// Объект записывается в req
	return done(null, user);
	}
	));

	passport.serializeUser(function (user, done) {
	done(null, JSON.stringify(user));
	});

	passport.deserializeUser(function (data, done) {
	try {
	done(null, JSON.parse(data));
	} catch (e) {
	done(err)
	}
	});

	app.get('/auth/vkontakte/callback',
	passport.authenticate('vkontakte', { failureRedirect: '/login' }),
	function (req, res) {
	// Successful authentication, redirect login.
	res.render('login', {login: req.user.nickname});
	});

	app.get('/', function (req, res) {
	res.render('home');
	});

	var info = {
	login: "",
	pass: "",
	toString: function() {
	return this.login + "=" + this.pass;
	}
	};

	app.post('/login', function(req, res) {
	info.login = req.body.login;
	info.pass = req.body.pass;

	// crypto
	// var secret = 'salt',
	// info.pass = crypto.createHmac('sha256', secret)
	// .update(req.body.pass)
	// .digest('hex');
	});

	app.get('/login', function (req, res) {
	var current_time = new Date().toString().slice(4, 24),
	check_name = users.indexOf(info.toString());

	if(check_name != -1) {
	// Вывод в логи
	console.log("login:" + info.login + " sign in " + current_time);
	res.render('login', {login: info.login, pass: info.pass});
	} else {
	console.log('ERR');
	res.redirect('/');
	}
	});

	app.listen(3000, function () {
	console.log('Express запущен на http://localhost:3000');
	});
	var users = [
	"login=pass",
	"andrey=123"
	];

	module.exports = users;