Passport.js remember me functionality - node.js

Question

https://github.com/jaredhanson/passport-remember-me
passport.use(new RememberMeStrategy(
function(token, done) {
Token.consume(token, function (err, user) {
if (err) { return done(err); }
if (!user) { return done(null, false); }
return done(null, user);
});
},
function(user, done) {
var token = utils.generateToken(64);
Token.save(token, { userId: user.id }, function(err) {
if (err) { return done(err); }
return done(null, token);
});
}
));
post
app.post('/login',
passport.authenticate('local', { failureRedirect: '/login', failureFlash: true }),
function(req, res, next) {
// issue a remember me cookie if the option was checked
if (!req.body.remember_me) { return next(); }
var token = utils.generateToken(64);
Token.save(token, { userId: req.user.id }, function(err) {
if (err) { return done(err); }
res.cookie('remember_me', token, { path: '/', httpOnly: true, maxAge: 604800000 }); // 7 days
return next();
});
},
function(req, res) {
res.redirect('/');
});
I'm trying to implement remember me feature (above) into my existing application but I couldn't make it. When I add RememberMeStrategy into my login.js, it throws
ReferenceError: RememberMeStrategy is not defined
error. What's missing here?
index.js
var rendering = require('../util/rendering');
var express = require('express');
var router = express.Router();
exports.home = function(req, res) {
res.render('index/index');
};
exports.userHome = function(req, res) {
res.render('index/user-home');
};
login.js
var crypto = require('crypto'),
passport = require('passport'),
passportRememberMe = require('passport-remember-me'),
passportLocal = require('passport-local'),
data = require('../models/auth')();
exports.registerPage = function (req, res) {
res.render('login/register', {username: req.flash('username')});
};
exports.registerPost = function (req, res) {
var vpw = req.body.vpw;
var pwu = req.body.pw;
var un = req.body.un;
req.flash('username', un);
if (vpw !== pwu) {
req.flash('error', 'Your passwords did not match.');
res.redirect('/register');
return;
}
req.checkBody('un', 'Please enter a valid email.').notEmpty().isEmail();
var errors = req.validationErrors();
if (errors) {
var msg = errors[0].msg;
req.flash('error', msg);
res.redirect('/register');
return;
}
var new_salt = Math.round((new Date().valueOf() * Math.random())) + '';
var pw = crypto.createHmac('sha1', new_salt).update(pwu).digest('hex');
var created = new Date().toISOString().slice(0, 19).replace('T', ' ');
new data.ApiUser({email: un, password: pw, salt: new_salt, created: created}).save().then(function (model) {
passport.authenticate('local')(req, res, function () {
res.redirect('/home');
})
}, function (err) {
req.flash('error', 'Unable to create account.');
res.redirect('/register');
});
};
exports.loginPage = function (req, res) {
res.render('login/index', {username: req.flash('username')});
};
exports.checkLogin = function (req, res, next) {
passport.authenticate('local', function (err, user, info) {
if (err || !user) {
req.flash('username', req.body.un);
req.flash('error', info.message);
return res.redirect('/login');
}
req.logIn(user, function (err) {
if (err) {
req.flash('error', info.message);
return res.redirect('/login');
}
req.flash('success', 'Welcome!');
return res.redirect('/home');
});
})(req, res, next);
};
exports.logout = function (req, res) {
req.logout();
req.flash('info', 'You are now logged out.');
res.redirect('/login');
};
routes.js
var rendering = require('./util/rendering'),
indexController = require('./controllers/index'),
loginController = require('./controllers/login');
module.exports = function (app, passport) {
// Home
app.get('/', indexController.home);
app.get('/home', ensureAuthenticated, indexController.userHome);
// Auth
app.get('/register', loginController.registerPage);
app.post('/register', loginController.registerPost);
app.get('/login', loginController.loginPage);
app.post('/login', loginController.checkLogin);
app.get('/logout', loginController.logout);
// 'rendering' can be used to format api calls (if you have an api)
// into either html or json depending on the 'Accept' request header
app.get('/apitest', function(req, res) {
rendering.render(req, res, {
'data': {
'test': {
'testsub': {
'str': 'testsub hello world'
},
'testsub2': 42
},
'test2': 'hello world'
}
});
})
// Auth Middleware
function ensureAuthenticated(req, res, next) {
if (req.isAuthenticated()) { return next(); }
res.redirect('/login');
}
}
server.js
var dbConfig;
try {
// Look for dev conf for local development
dbConfig = require('./config/db.dev.conf.js');
} catch(e) {
try {
// production conf?
dbConfig = require('./config/db.conf.js');
} catch(e) {
console.log('Startup failed. No db config file found.');
return false;
}
}
var knex = require('knex')({
client: 'mysql',
connection: dbConfig
}),
express = require('express'),
bodyParser = require('body-parser'),
cookieParser = require('cookie-parser'),
cookieSession = require('cookie-session'),
serveStatic = require('serve-static'),
expressValidator = require('express-validator'),
flash = require('connect-flash'),
swig = require('swig'),
passport = require('passport'),
passportRememberMe = require('passport-remember-me'),
passportLocal = require('passport-local'),
crypto = require('crypto'),
Bookshelf = require('bookshelf'),
messages = require('./util/messages');
var app = express();
Bookshelf.mysqlAuth = Bookshelf(knex);
app.use(cookieParser('halsisiHHh445JjO0'));
app.use(cookieSession({
keys: ['key1', 'key2']
}));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(expressValidator());
app.use(passport.initialize());
app.use(passport.session());
app.use(passport.authenticate('remember-me'));
app.use(flash());
app.use(serveStatic('./public'));
//app.use(express.favicon(__dirname + '/public/images/shortcut-icon.png'));
app.use(messages());
app.engine('html', swig.renderFile);
app.set('view engine', 'html');
app.set('views', __dirname + '/views');
require('./util/auth')(passport);
require('./routes')(app, passport);
app.listen(process.env.PORT || 3000);
console.log('Listening on port 3000');

Answer 1

That error is simply saying that you haven't defined the RememberMeStrategy function before calling it (you're using new but in Javascript that's just calling a function with a special variable called this). You need to require the module first, in this case:
var RememberMeStrategy = require('passport-remember-me').Strategy;

Answer 2

Just require it in the variable RememberMeStrategy
var RememberMeStrategy= require('passport-remember-me').Strategy;