warden-googleapps

A Warden middleware for google apps. It needs a little work but definitely authenticates you just fine in Rack apps.

Example

Gemfile

source :gemcutter

gem 'haml',                '~>2.2.0'
gem 'warden-googleapps',    '=0.0.3'

group :development do
  gem 'shotgun'
end

app.rb

module DirectoryAdmin
  class App < Sinatra::Default
    disable :show_errors
    disable :show_exceptions

    use Warden::Manager do |manager|
      manager.default_strategies :google_apps
      manager.failure_app = BadAuthentication

      manager[:google_apps_domain]   = 'example.org'
      # manager[:google_apps_endpoint] = 'http://www.google.com/accounts/o8/id' # this is gmail
      # manager[:redirect_url]         = 'http://example.org/verify_url' # endpoint where google apps redirects to after successful authentication
    end

    helpers do
      def ensure_authenticated
        unless env['warden'].authenticate!
          throw(:warden)
        end
      end

      def user
        env['warden'].user
      end
    end

    get '/' do
      ensure_authenticated
      haml "%h2= 'Hello There, #{user.full_name}!'"
    end

    get '/logout' do
      env['warden'].logout
      haml "%h2= 'Peace!'"
    end
  end

  class BadAuthentication < Sinatra::Default
    get '/unauthenticated' do
      status 403
      haml "%h3= 'Unable to authenticate, sorry bud.'"
    end
  end
end

Enabling on GMail

It should just work, even for localhost.

Also checkout sinatra-auth-gmail.

Enabling on Google Apps for Domains

Be sure you have Federated Login using OpenID enabled under your Advanced Settings Tab

Developing

% gem install bundler
% bundle install
% bundle exec rake repackage