Develop Reference

How to handle Express Sessions?

I'm trying to deal with authentication sessions in Node.js, Express, Passport app.
I made lines of code to use express-session and it still can't auth even when I register new user.
Here is strategy.
// Local Strategy
passport.use(new LocalStrategy({ usernameField: 'email' }, function(username, password, done){
User.findOne({ 'email': username }, function(err, user){
if(err) throw err;
if(!user){
return done(null, false, {type: "danger", message: 'No user found'});
}
// Match Password
bcrypt.compare(password, user.password, function(err, isMatch){
if(err) throw err;
if(isMatch){
return done(null, user);
} else {
return done(null, false, {type: "danger", message: 'Wrong password'});
}
});
});
}));
Here are serializers.
passport.serializeUser(function(user, done) {
console.log(user.id);
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
console.log(user.id);
done(err, user);
});
});
Here is login and register route.
// Login page and form
router.get('/login', function(req, res) {
res.render('login');
});
router.post('/login', passport.authenticate('local',
{successRedirect: '/chat',
failureRedirect: '/login'}));
// Register page and form
router.get('/register', function(req, res) {
let errors = [];
res.render('register', { 'errors': '' });
});
router.post('/register', [
check('name').notEmpty().withMessage('Name field is empty'),
check('surname').notEmpty().withMessage('Surname field is empty'),
check('email').notEmpty().withMessage('E-mail is empty'),
check('password').notEmpty().withMessage('Password field is empty'),
check('password_confirm').notEmpty().withMessage('Password confirmation field is empty'),
check("password", "Passwords don't match")
.custom((value,{req}) => {
if (value !== req.body.password_confirm) {
throw new Error("Passwords don't match");
} else {
return value;
}
}),
], function(req, res) {
const { name, surname, email, password } = req.body;
let errors = validationResult(req);
console.log(errors.errors);
if(!errors){
res.render('register', { 'errors': errors.errors });
console.log('ebebe');
} else {
console.log('oooo');
let NewUser = new User ({
name, surname, email, password
});
bcrypt.genSalt(10, function(err, salt) {
bcrypt.hash(password, salt, function(err, hash) {
NewUser.password = hash;
NewUser.save();
});
});
res.redirect('/chat');
}
});
Here is protected route.
router.get('/chat', (req, res) => {
if(req.isAuthenticated()) {
res.send('definitely secure page');
console.log(req.user);
console.log(req.isAuthenticated());
} else {
res.send('ebebe');
console.log(req.user);
console.log(req.isAuthenticated());
}
});
How to make it work properly and what am I doing wrong?

Here is a way to do it. You can use something like jsonwebtoken in combination with express-session and write a middleware function to check if the token is valid and use it to protect the routes that you want to protect. Here are some snippets of code that I hope will help guide you in the right direction.
First you can write a function like this in your UserSchema so you can use it later to generate a jwt token when the user logs in
var jwt = require('jsonwebtoken');
UserSchema.methods.generateJWT = function() {
var today = new Date();
var exp = new Date(today);
exp.setDate(today.getDate() + 60);
return jwt.sign({
id: this._id,
username: this.username,
exp: parseInt(exp.getTime() / 1000),
}, secret);
};
then in the login route you can use it to generate a token.
router.post('/login', passport.authenticate('local',
failureRedirect: '/login'}), function(req, res) {
req.user.token = user.generateJWT();
req.session.token = req.user.token;
res.redirect('/dashboard')
});
and then you can write the middleware
function auth(req, res, next) {
//console.log(req.session.token)
if (req.session.token) {
const token = req.session.token
let decoded = jwt.verify(token, secret)
console.log(decoded)
User.findById(decoded.id, function(err, user) {
if (err || !user) {
return res.redirect('/')
}
//console.log(user)
res.locals.user = user
req.user = user
next()
})
} else {
return res.redirect('/')
}
}
and then you can protect your routes with it
router.get('/protected', auth, function(req, res) {
})

How to Pass Credentials to passport.authenticate?

I'm trying to secure an API endpoint on a node.js express app that uses passport.
This is my route:
router.post('/api/devices', authController.isAuthorized, catchErrors(deviceController.getDevicesAPI));
This is my authorization method:
exports.isAuthorized = (req, res, next) => {
passport.authenticate('local', {session: false}, (err, user, info) => {
if (err || !user) {
return res.json({ message: 'Something is not right ', err, info });
}
req.login(user, {session: false}, (err) => {
if (err) {
res.send(err);
}
next();
});
})(req, res);
};
From Postman or a separate local server, I get the response:
{
"message": "Something is not right ",
"err": null,
"info": {
"message": "Missing credentials"
}
}
This is the Postman configuration:
What am I missing?

How is your local strategy configured? It seems like a database query problem
As the sample in http://www.passportjs.org/docs/username-password/, please see my comments below
var passport = require('passport')
, LocalStrategy = require('passport-local').Strategy;
passport.use(new LocalStrategy(
function(username, password, done) { //<--- Here is where you pass the UN&PASS
User.findOne({ username: username }, function(err, user) { //<--- Here is the sample code that should find you a user
if (err) { return done(err); } //<--- Here could be where the response is coming from
if (!user) {
return done(null, false, { message: 'Incorrect username.' });
}
if (!user.validPassword(password)) {
return done(null, false, { message: 'Incorrect password.' });
}
return done(null, user); //<--- Here is the sample code that should let you return that user
});
}
));

I finally dug it out from here. User.authenticate() is the method I was looking for.
exports.isAuthorized = async (req, res, next) => {
const username = req.body.username;
const password = req.body.password;
const user = await User.findOne({ email: username });
if (!user) {
res.sendStatus(403);
return;
}
user.authenticate(password, function(err, result) {
if (result) {
next();
return;
}
res.sendStatus(403);
});
};

Passportjs: Cannot read property 'connection' of undefined at Strategy._verify

Using passportjs for authentication in my node.js application but getting the error above. This is my code below
app.js
passport.use(new LocalStrategy({usernameField: 'email'},function(email, password, res, done) {
res.locals.connection.query('SELECT id, password FROM users WHERE email = ?', [email], function(err, user) {
console.log(user);
if (err) {return done(err)};
if (user.length === 0) {
done(null, false);
};
const hash = user[0].password.toString();
console.log(hash);
bcrypt.compare(password, hash, function(err, res) {
if (res === true) {
return done(null, {user_id: user[0].id});
} else {
return done(null, false);
}
});
});
}
));
index.js
router.post('/', passport.authenticate('local', {
successRedirect: 'home',
failureRedirect: '/'
}));
What could be wrong with my code?

Error in sign up passport-local sign up routine

I'm building an app in Node, using Passport and local signup and sign in strategies. I just keep running into an issue. All the required modules etc. are there. The following sign in routine works fine:
passport.use('local-signin', new LocalStrategy({
usernameField : 'email',
passwordField : 'password',
passReqTodone : true
}, function(req, email, password, done) {
User.findOne({ 'local.email' : email }, function(err, user) {
if (err)
return done(err);
if (!user)
return done(null, false, req.flash('message', 'User not found.'));
if (!user.validPassword(password))
return done(null, false, req.flash('message', 'Wrong password.'));
return done(null, user);
});
}));
However, the following sign up routine does not:
passport.use('local-signup', new LocalStrategy({
usernameField : 'email',
passwordField : 'password',
passReqTodone : true
}, function(req, email, password, done) {
console.log("signing up")
User.findOne({ 'local.email' : email }, function(err, user) {
if (err) {
return done(err);
} else if (user) {
return done(null, false, req.flash('message', 'That email address is already registered.'));
} else {
var newUser = new User();
}
// save the user
newUser.save(function(err) {
if (err) {
console.log("Error saving new user profile: " + err);
} else {
return done(null, newUser, req.flash('message', 'User account created'));
}
});
});
}))
Both routines are called within routes.js:
// POST : SIGNUP
app.post('/signup', passport.authenticate('local-signup', {
successRedirect: '/',
failureRedirect: '/error',
failureFlash: true
}));
// POST : SIGNIN
app.post('/signin', passport.authenticate('local-signin', {
successRedirect: '/profile',
failureRedirect: '/',
failureFlash: true
}));
Any ideas where it might go wrong? As is, posting to /signup continuously results in a failureRedirect. My head is getting kinda sore from banging on the screen...

The only thing you need to change is:
if (!user.validPassword(password))
To
if (user.validPassword(password) === false)
I know, if (!user.validPassword(password)) is in examples on Passport.js official docs, but it is wrong.
I have just lost 2 hours of my life, figuring this out.

Use this code it will helps you to fix your problem
passport-authentication.js
var express=require('express');
var router = express.Router();
var passport = require('passport');
var User = require('../models/user');//user is schema
var Verify = require('./verify');//verify is a file where the user is verified
/* GET users listing. */
router.get('/', Verify.verifyOrdinaryUser,function(req, res, next) {
User.find({},function(err,user){
if(err) throw err;
res.json(user);
});
});
router.post('/register', function(req, res) {
User.register(new User({ username : req.body.username,Email:req.body.Email}),
req.body.password, function(err, user) {
if (err) {
return res.status(500).json({err: err});
}
if(req.body.firstname) {
user.firstname = req.body.firstname;
}
if(req.body.lastname) {
user.lastname = req.body.lastname;
}
user.save(function(err,user) {
passport.authenticate('local')(req, res, function () {
return res.status(200).json({status: 'Registration Successful!'});
});
});
});
});
router.post('/login', function(req, res, next) {
passport.authenticate('local', function(err, user, info) {
if (err) {
return next(err);
}
if (!user) {
return res.status(401).json({
err: info
});
}
req.logIn(user, function(err) {
if (err) {
return res.status(500).json({
err: 'Could not log in user'
});
}
var token = Verify.getToken(user);
res.status(200).json({
status: 'Login successful!',
success: true,
token: token
});
});
})(req,res,next);
});
router.get('/logout', function(req, res) {
req.logout();
res.status(200).json({
status: 'Bye!'
});
});
module.exports = router;
verify.js
var User = require('../models/user');
var jwt = require('jsonwebtoken'); // used to create, sign, and verify tokens
var config = require('../config.js');
exports.getToken = function (user) {
return jwt.sign(user, config.secretKey, {
expiresIn: 3600
});
};
exports.verifyOrdinaryUser = function (req, res, next) {
// check header or url parameters or post parameters for token
var token = req.body.token || req.query.token || req.headers['x-access-token'];
// decode token
if (token) {
// verifies secret and checks exp
jwt.verify(token, config.secretKey, function (err, decoded) {
if (err) {
var err = new Error('You are not authenticated!');
err.status = 401;
return next(err);
} else {
// if everything is good, save to request for use in other routes
req.decoded = decoded;
next();
}
});
} else {
// if there is no token
// return an error
var err = new Error('No token provided!');
err.status = 403;
return next(err);
}
};
hope this helps for you...

Sails + passport + Basic Authentication

in passport js, basic strategy, the following code sample provides a function for verifying the identity of a user.
passport.use(new BasicStrategy(
function(userid, password, done) {
User.findOne({ username: userid }, function (err, user) {
if (err) { return done(err); }
if (!user) { return done(null, false); }
if (!user.verifyPassword(password)) { return done(null, false); }
return done(null, user);
});
}
));
Question is where (which file) in a Sails application should this code be placed? I suppose same applies for a custom verification function?

create AuthController under controllers directory
then write code to make passport handle login process
login: function(req, res) {
passport.authenticate('local', function(err, user, info) {
if ((err) || (!user)) {
return res.send({
message: info.message,
user: user
});
}
req.logIn(user, function(err) {
if (err) res.send(err);
return res.send({
message: info.message,
user: user
});
});
})(req, res);
this line passport.authenticate('local' will read configuration from passport.js inside config.js which will be like this :-
passport.use(new LocalStrategy({
usernameField: 'email',
passwordField: 'password'
},
function(email, password, done) {
User.findOne({ email: email }, function (err, user) {
if (err) { return done(err); }
if (!user) {
return done(null, false, { message: 'Incorrect email.' });
}
bcrypt.compare(password, user.password, function (err, res) {
if (!res)
return done(null, false, {
message: 'Invalid Password'
});
var returnUser = {
email: user.email,
createdAt: user.createdAt,
id: user.id
};
return done(null, returnUser, {
message: 'Logged In Successfully'
});
});
});
add these line into route.js :- 'post /login': 'AuthController.login'