Derby.js Authentication

NOTE: Please use the 0.5 branch if you're using Derby/Racer 0.5

Provides authentication middleware (using Passport) for use in your Derby projects.

Please use the example directory as boilerplate for setting up your own project, but the basics are outlined here.

###Step 1

###
Setup a hash of strategies you'll use - strategy objects and their configurations
Note, API keys should be stored as environment variables (eg, process.env.FACEBOOK_KEY) or you can use nconf to store
them in config.json, which we're doing here
###
auth = require("derby-auth")
strategies =
  facebook:
    strategy: require("passport-facebook").Strategy
    conf:
      clientID: conf.get('fb:appId')
      clientSecret: conf.get('fb:appSecret')

###Step 1.5

###
Optional parameters passed into auth.middleware(). Most of these will get sane defaults, so it's not entirely necessary
to pass in this object - but I want to show you here to give you a feel. @see derby-auth/middeware.coffee for options
###
options =
  passport:
    failureRedirect: '/'
    successRedirect: '/'
  site:
    domain: 'http://localhost:3000'
    name: 'My Site'
    email: '[email protected]'
  smtp:
    service: 'Gmail'
    user: '[email protected]'
    pass: 'abc'

###Step 2

###
Initialize the store. This will add utility accessControl functions (see store.coffee for more details), as well
as the basic specific accessControl for the `auth` collection, which you can use as boilerplate for your own `users`
collection or what have you. The reason we need `mongo` & `strategies` is to run db.ensureIndexes() on first run,
and we may need in the future to access sensitive auth properties due to missing mongo projections feature
in Racer 0.5 (@see http://goo.gl/mloKO)
###
auth.store(store, mongo, strategies)

###Step 3 Make sure your express app is using sessions & body-parsing

expressApp
    ...
    .use(express.cookieParser())
    .use(express.session({
        secret: conf.get('SESSION_SECRET')
        store: new MongoStore({url: mongoUrl, safe: true})
    }))
    .use(express.bodyParser())
    .use(express.methodOverride())

Use derby-auth's mounted middleware

    ...
    # derbyAuth.middleware is inserted after modelMiddleware and before the app router to pass server accessible data to a model
    # Pass in {store} (sets up accessControl & queries), {strategies} (see above), and options
    .use(auth.middleware(strategies, options))
    ...

###Step 4 (optional, recommended) If you want drop-in Login and Register forms, including form validation, use the <derby-auth:login /> and <derby-auth:register /> components. To enable these, you'll need this in your /src/app/index.coffee file:

   app.use require("derby-auth/components/index.coffee")

NOTE: the components require jQuery in your app (window.$ must exist). See example/server/index.coffee's store.on('bundle') for an example.

See the example for more details, as well as login / registration forms, sign-in buttons, etc.

Why not EveryAuth?

This project was originally implemented with Everyauth (see branch), but had some issues:

1. Every provider had to be implemented individually in code. Passport has an abstraction layer, which is what allows us to pass in Strategy + conf objects in server/index.js for every provider we want enabled.
2. Password authentication posed technical difficulties. See the Google Group discussion

The derby-examples/auth folder, written by the creators of Derby, uses Everyauth - so if you can't get derby-auth working, you may want to give that a shot. Note, it doesn't yet implement username / password authentication.