Facebook Connect Auth Middleware

Facebook.coffee

http = require('http')
module.exports = (app) ->
  ensureLogin: (req, res, next) ->
    return res.end() unless req.session?
    if req.session.fbid?
      return next()
    
    req.authenticate ['facebook'], (error, authenticated) ->
      unless authenticated then return res.end()
      fbUser = req.getAuthDetails().user
      fbid  = req.session.fbid = fbUser.id
      name = fbUser.name
      email = fbUser.email
      
      max = 2
      avatar = Math.floor(Math.random()*(max + 1))
      avatar = avatar + 3 if fbUser.gender is 'female'
      
      # Hiding last name. Certainly doesn't add privacy for folks like me... -Kav
      name = "#{req.getAuthDetails().user.first_name} #{req.getAuthDetails().user.last_name[0]}."
      
      user = app.models.users.get(fbid)
      newUserMail(fbUser) unless user?
      
      user ?= app.models.users.create id: fbid, name: name, email: email, avatar:avatar 
      user.set online: true
      
      
      parsedUrl = require('url').parse(req.url)

      return res.redirect(parsedUrl.pathname) if request.url isnt parsedUrl.pathname 
      return next()