Facebook passport

gistfile1.txt

var passport            = require('passport'),
    FacebookStrategy    = require('passport-facebook').Strategy;



/**
 * This function handles passport verification
 * @param  {Object}   token       Token
 * @param  {Object}   tokenSecret Token secret
 * @param  {Object}   profile     Information regarding this user
 * @param  {Function} done        Callback to execute upon completion
 */
var verifyHandler = function (token, tokenSecret, profile, done) {
    process.nextTick(function(){ //handle on the next cycle
        console.log("Verifying...");
        Users.findOne({uid: profile.id}).done(function(err, user){
            if(user){                                   //If this is an already-valid user
                return done(null, user);                //We are finished!
            } 
            else{                                       //If this is not an already-valid user
                Users.create({
                    provider    : profile.provider,     //pass the provider
                    uid         : profile.id,           //pass the user id
                    name        : profile.displayName   //pass the display name
                }).done(function(err, user){
                    return done(err, user);             //Return eror
                });
            }
        });
    });
};

/**
 * This function serializes user data to send back to the suer
 * @param  {Object}   user User object
 * @param  {Function} done Callback
 */
passport.serializeUser(function(user, done){
    done(null, user.uid);
});

/**
 * This function deserializes the user data so that we can look up the user
 * @param  {String}   uid  The user's id
 * @param  {Function} done Callback
 */
passport.deserializeUser(function(uid, done){
    Users.findOne({uid: uid}).done(function(err, user){
        done(err, user)
    });
});


passport.use(new FacebookStrategy({
        clientID        : "xxxxxxxxxxxxxxxxxxxxxx",
        clientSecret    : "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        callbackURL     : "http://127.0.0.1:1337/auth/facebook/callback"
},verifyHandler));


module.exports.express = {
    customMiddleware: function(app){
        console.log("passport");
        app.use(passport.initialize());
        app.use(passport.session());
    }
};