Contents

require 'omniauth/strategies/oauth2'

module OmniAuth
  module Strategies
    class Facebook < OmniAuth::Strategies::OAuth2
      option :client_options, {
        :site => 'https://graph.facebook.com',
        :token_url => '/oauth/access_token'
      }

      option :token_params, {
        :parse => :query
      }

      option :access_token_options, {
        :header_format => 'OAuth %s',
        :param_name => 'access_token'
      }
      
      uid { raw_info['id'] }
      
      info do
        prune!({
          'nickname' => raw_info['username'],
          'email' => raw_info['email'],
          'name' => raw_info['name'],
          'first_name' => raw_info['first_name'],
          'last_name' => raw_info['last_name'],
          'image' => "http://graph.facebook.com/#{uid}/picture?type=square",
          'description' => raw_info['bio'],
          'urls' => {
            'Facebook' => raw_info['link'],
            'Website' => raw_info['website']
          },
          'location' => (raw_info['location'] || {})['name']
        })
      end
      
      credentials do
        prune!({
          'expires' => access_token.expires?,
          'expires_at' => access_token.expires_at
        })
      end
      
      extra do
        prune!({
          'raw_info' => raw_info
        })
      end
      
      def raw_info
        @raw_info ||= access_token.get('/me').parsed
      end

      def build_access_token
        super.tap do |token|
          token.options.merge!(access_token_options)
        end
      end

      def access_token_options
        options.access_token_options.inject({}) { |h,(k,v)| h[k.to_sym] = v; h }
      end
      
      private
      
      def prune!(hash)
        hash.delete_if do |_, value| 
          prune!(value) if value.is_a?(Hash)
          value.nil? || (value.respond_to?(:empty?) && value.empty?)
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
omniauth-facebook-1.0.0.rc1	lib/omniauth/strategies/facebook.rb