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Doorkeeper is an OAuth 2 provider for Rails.

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README.md

Doorkeeper - awesome oauth provider for your Rails app.

Build Status Dependency Status

Doorkeeper is a gem that makes it easy to introduce OAuth 2 provider functionality to your application.

The gem is under constant development. It is based in the version 22 of the OAuth specification and it still does not support all OAuth features.

For more information about the supported features, check out the related page in the wiki. For more information about OAuth 2 go to OAuth 2 Specs (Draft).

Requirements

Ruby

  • 1.8.7, 1.9.2, 1.9.3 or rubinius

Rails

  • 3.1.x or 3.2.x

ORM

  • ActiveRecord or Mongoid

Installation

Put this in your Gemfile:

gem 'doorkeeper', '~> 0.4.2'

Run the installation generator with:

rails generate doorkeeper:install

This will install the doorkeeper initializer into config/initializers/doorkeeper.rb.

Configuration

Active Record

By default doorkeeper is configured to use active record, so to start you have to generate the migration tables:

rails generate doorkeeper:migration

Don't forget to run the migration with:

rake db:migrate

Mongoid

If you want to use Mongoid, you have to set the orm configuration:

Doorkeeper.configure do
  orm :mongoid
end

Note: Make sure you create indexes for doorkeeper models. You can do this either by running db:mongoid:create_indexes or by adding autocreate_indexes: true to your config/mongoid.yml

Routes

The installation script will also automatically add the Doorkeeper routes into your app, like this:

Rails.application.routes.draw do
  use_doorkeeper
  # your routes
end

This will mount following routes:

GET       /oauth/authorize
POST      /oauth/authorize
DELETE    /oauth/authorize
POST      /oauth/token
resources /oauth/applications

For more information on how to customize routes, check out this page on the wiki.

Authenticating

You need to configure Doorkeeper in order to provide resource_owner model and authentication block initializers/doorkeeper.rb

Doorkeeper.configure do
  resource_owner_authenticator do |routes|
    current_user || redirect_to(routes.login_url) # returns nil if current_user is not logged in
  end
end

This block runs into the context of your Rails application, and it has access to current_user method, for example.

If you use devise, you may want to use warden to authenticate the block:

resource_owner_authenticator do |routes|
  current_user || warden.authenticate!(:scope => :user)
end

If you are not using devise, you may want to check other ways of authentication here.

Protecting resources with OAuth (a.k.a your API endpoint)

To protect your API with OAuth, doorkeeper only requires you to call doorkeeper_for helper, specifying the actions you want to protect.

For example, if you have a products controller under api/v1, you can require the OAuth authentication with:

class Api::V1::ProductsController < Api::V1::ApiController
  doorkeeper_for :all                     # Require access token for all actions
  doorkeeper_for :all, :except => :index  # All actions except index
  doorkeeper_for :index, :show            # Only for index and show action

  # your actions
end

You don't need to setup any before filter, doorkeeper_for will handle that for you.

You can pass if or unless blocks that would specify when doorkeeper has to guard the access.

class Api::V1::ProductsController < Api::V1::ApiController
  doorkeeper_for :all, :if => lambda { request.xhr? }
end

Access Token Scopes

You can also require the access token to have specific scopes in certain actions:

First configure the scopes in initializers/doorkeeper.rb

Doorkeeper.configure do
  default_scopes :public # if no scope was requested, this will be the default
  optional_scopes :admin, :write
end

The in your controllers:

class Api::V1::ProductsController < Api::V1::ApiController
  doorkeeper_for :index, :show,    :scopes => [:public]
  doorkeeper_for :update, :create, :scopes => [:admin, :write]
end

For a more detailed explanation about scopes usage, check out the related page in the wiki.

Authenticated resource owner

If you want to return data based on the current resource owner, in other words, the access token owner, you may want to define a method in your controller that returns the resource owner instance:

class Api::V1::CredentialsController < Api::V1::ApiController
  doorkeeper_for :all
  respond_to     :json

  # GET /me.json
  def me
    respond_with current_resource_owner
  end

  private

  # Find the user that owns the access token
  def current_resource_owner
    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
  end
end

In this example, we're returning the credentials (me.json) of the access token owner.

Upgrading

If you want to upgrade doorkeeper to a new version, check out the upgrading notes and take a look at the changelog.

Other resources

Wiki

You can find everything about doorkeeper in our wiki here.

Live demo

Check out this live demo hosted on heroku. For more demos check out the wiki.

Screencast

Check out this screencast from railscasts.com: #353 OAuth with Doorkeeper

Client applications

After you set up the provider, you may want to create a client application to test the integration. Check out these client examples in our wiki or follow this tutorial here.

Contributing/Development

Want to contribute and don't know where to start? Check out features we're missing, create example apps, integrate the gem with your app and let us know!

Also, check out our contributing guidelines page.

Supported ruby versions

All supported ruby versions are listed here.

Additional information

Maintainers

Contributors

Thanks to all our awesome contributors!

License

MIT License. Copyright 2011 Applicake. http://applicake.com

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