sessions-time.js

//@ts-check

const express = require('express');
const session = require('express-session');

const app = express();

const MAX_AGE = 5000;

// Use the session middleware
app.use(session({ secret: 'keyboard cat', cookie: { maxAge: MAX_AGE }}));

app.use(function(req, res, next){
    console.log('every request', 22222);
    next();
});


/*

on any request
  if (logged in) {
      // if session expired
    if (session.cookie.maxAge > new Date()) {
        redirect to login
    } else {
        // update session coockie
        session.cookie.maxAge = MAX_AGE;
    }

    if ( Doesn't have MVPAccess ) {
        redirect to login
    }

  } esle {
    redirect to login
  }

*/

// Access the session as req.session
app.get('/', function(req, res, next) {
    // if logged in
  if (req.session.views) {
    req.session.views++
    res.setHeader('Content-Type', 'text/html')
    res.write('<p>views: ' + req.session.views + '</p>')
    res.write('<p>expires in: ' + (req.session.cookie.maxAge / 1000) + 's</p>');
    res.write(`<form action="api/change" method="post">
    <input type="text" name="data" value="mydata" />
    <button type="submit">Change coockie age</button>
  </form>`);
    console.log(req.session.cookie);
    next();
    // res.end()

    // if logged out
  } else {
    req.session.views = 1;
    res.redirect('/.sso/login');
    // res.end('welcome to the session demo. refresh!')
  }
}, function(req, res, next) {
    res.write('<p>Added by middleware</p>');
    res.end();
});

app.get('/.sso/login', function(req, res, next) {
    res.send('Redirected to Login <a href="/">LOGIN</a>');
});

app.get('/.sso/logout', function(req, res, next) {
    res.send('Redirected to Logout <script>setTimeout(() => { window.location.href = "/.sso/login"}, 3000)</script>');
});

app.post('/api/change', function(req, res, next) {
    // console.log('req body is: ',);
    req.session.cookie.maxAge = 5000;
    res.redirect('/');
});


app.get('/app', function (req, res) {
  res.send('Hello World!');
});

app.listen(3000);