Untitled

suckittrees.com/artikel-529/aplikasi-perpustakaan-berbasis-web.html

https://www.codexpedia.com/node-js/a-very-basic-session-auth-in-node-js-with-express-js/
https://hackernoon.com/object-oriented-routing-in-nodejs-and-express-71cb1baed9f0
https://www.codexpedia.com/node-js/a-very-basic-session-auth-in-node-js-with-express-js/
https://pastebin.com/3KjjBcN1
https://pastebin.com/vd7Zs5id
https://codeshack.io/basic-login-system-nodejs-express-mysql/


<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>Login Form Tutorial</title>
		<style>
		.login-form {
			width: 300px;
			margin: 0 auto;
			font-family: Tahoma, Geneva, sans-serif;
		}
		.login-form h1 {
			text-align: center;
			color: #4d4d4d;
			font-size: 24px;
			padding: 20px 0 20px 0;
		}
		.login-form input[type="password"],
		.login-form input[type="text"] {
			width: 100%;
			padding: 15px;
			border: 1px solid #dddddd;
			margin-bottom: 15px;
			box-sizing:border-box;
		}
		.login-form input[type="submit"] {
			width: 100%;
			padding: 15px;
			background-color: #535b63;
			border: 0;
			box-sizing: border-box;
			cursor: pointer;
			font-weight: bold;
			color: #ffffff;
		}
		</style>
	</head>
	<body>
		<div class="login-form">
			<h1>Login Form</h1>
			<form action="auth" method="POST">
				<input type="text" name="username" placeholder="Username" required>
				<input type="password" name="password" placeholder="Password" required>
				<input type="submit">
			</form>
		</div>
	</body>
</html>


var mysql = require('mysql');
var express = require('express');
var session = require('express-session');
var bodyParser = require('body-parser');
var path = require('path');

var connection = mysql.createConnection({
	host     : 'localhost',
	user     : 'root',
	password : '',
	database : 'phplogin'
});

var app = express();
app.use(session({
	secret: 'secret',
	resave: true,
	saveUninitialized: true
}));
app.use(bodyParser.urlencoded({extended : true}));
app.use(bodyParser.json());

app.get('/', function(request, response) {
	response.sendFile(path.join(__dirname + '/login.html'));
});

app.post('/auth', function(request, response) {
	var username = request.body.username;
	var password = request.body.password;
	if (username && password) {
		connection.query('SELECT * FROM accounts WHERE username = ? AND password = ?', [username, password], function(error, results, fields) {
			if (results.length > 0) {
				request.session.loggedin = true;
				request.session.username = username;
				response.redirect('/home');
			} else {
				response.send('Incorrect Username and/or Password!');
			}
			response.end();
		});
	} else {
		response.send('Please enter Username and Password!');
		response.end();
	}
});

app.get('/home', function(request, response) {
	if (request.session.loggedin) {
		response.send('Welcome back, ' + request.session.username + '!');
	} else {
		response.send('Please login to view this page!');
	}
	response.end();
});

app.listen(3000);