CODEWITHSUNDEEP
node.jscookies
Lion789
Lion789

Reputation: 4482

I don't know what I am doing wrong setting the cookie?

So I am using nodejs and mongodb and trying to set a cookie on one of the pages.

In the app.js file, it is pretty standard using this

var express = require('express')
  , app = express()
  , dbUserModel = require('./models/user')
  , db = require('./db')
  , pass = require('./config/passport')
  , passport = require('passport')
  , routes = require('./routes/index')
  , user = require('./routes/user')
  , path = require('path')
  , http = require('http')
  , connect = require('connect')
  , mongoose = require('mongoose')
  , mongoConnect = mongoose.connect('mongodb://localhost/test5');

// all environments

app.configure(function(){
    app.set('port', process.env.PORT || 3000);
    app.set('views', __dirname + '/views');
    app.set('view engine', 'jade');


    app.use(express.favicon());
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
  app.use(express.cookieParser('secret'));
  ///app.use(express.cookieSession());
  app.use(express.methodOverride());
    app.use(passport.initialize());
    app.use(passport.session());
    app.use(app.router);
    app.use(express.static(path.join(__dirname, 'public')));    
});
  app.get('/', routes.index)
  app.get('/register', user.register);
  app.post('/register', user.registerPost);
  app.get('/registerError', user.registerError);
  app.get('/registerThanks', user.registerThanks);
  app.get('/login', user.login);
  app.post('/login', user.loginPost);
  app.get('/loginError', user.loginError);
  app.get('/userProfile', user.userProfile);

http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
  console.log('Users: ' + db.collections.users);
});

Then I am calling my route file.

This is my code: 

exports.login = function(req, res) {
    res.render('login', {user: req.user, title: 'Weblio'});
};

exports.loginPost = function(req, res, next) {
    passport.authenticate('local', function(err, user, info) {
        if (err) { return next(err) }
        if (!user) { return res.redirect('loginError'); }
        req.logIn(user, function(err) {
            if (err) { return next(err); }
            return res.redirect('userProfile');
        });
  })(req, res, next);
};

exports.loginError = function (req, res) {
    res.render('loginError', {title: 'Weblio'});
};

exports.userProfile = function(req, res) {      
    res.render('userProfile', {user: req.user, title: 'Weblio'});
    res.cookie('name', 'test', { maxAge: 900000, httpOnly: true }); 

};

When I go to the userProfile page and in the console I type in document.cookie it shows an empty string as the result.

I also tried moving the res.cookie into the login post and it was not working...

Please help!

Upvotes: 0

Views: 1151

Answers (1)

gillyb
gillyb

Reputation: 8910

You can't modify cookies after sending the response headers to the client, regardless of the programming language you're using. When calling res.render() it sends the headers along with the actual view.

HTTP cookies are are part of the headers being sent to the client.

Try calling res.cookie() before your res.render() that sends the response to the client.

Also, when calling app.use(express.cookieParser('secret')); you are creating a 'signed' cookie, by giving the 'secret' parameter.
Thus, when changing the cookie, you must tell express that you are handling a signed cookie like this :
res.cookie('name', 'test', {maxAge: 900000, httpOnly: true, signed: true});

You can read more about cookies here : http://www.nczonline.net/blog/2009/05/05/http-cookies-explained/

Upvotes: 1

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