routes.js

app.get('/*', function(req, res){
    var role = userRoles.public, username = '';
    if(req.user) {
        role = req.user.role;
        username = req.user.username;
    }

    res.cookie('user', JSON.stringify({
        'username': username,
        'role': role
    }));

    res.render('index');
});