Yahoo! OAuth strategy with spec

oa-oauth/lib/omniauth/oauth.rb

@@ -19,5 +19,6 @@ module OmniAuth
     autoload :SoundCloud,         'omniauth/strategies/sound_cloud'
     autoload :SmugMug,            'omniauth/strategies/smug_mug'
     autoload :Goodreads,          'omniauth/strategies/goodreads'
+    autoload :Yahoo,              'omniauth/strategies/yahoo'
   end
 end

oa-oauth/lib/omniauth/strategies/yahoo.rb

@@ -0,0 +1,55 @@
+require 'omniauth/oauth'
+require 'multi_json'
+
+module OmniAuth
+  module Strategies
+    # 
+    # Authenticate to Yahoo via OAuth and retrieve basic
+    # user information.
+    #
+    # Usage:
+    #
+    #    use OmniAuth::Strategies::Yahoo, 'consumerkey', 'consumersecret'
+    #
+    class Yahoo < OmniAuth::Strategies::OAuth
+      def initialize(app, consumer_key = nil, consumer_secret = nil, options = {}, &block)
+        client_options = {
+          :site => 'https://api.login.yahoo.com',
+          :request_token_path => '/oauth/v2/get_request_token',
+          :access_token_path => '/oauth/v2/get_token',
+          :authorize_path => "/oauth/v2/request_auth"
+        }
+
+        super(app, :yahoo, consumer_key, consumer_secret, client_options, options)
+      end
+      
+      def auth_hash
+        ui = user_info
+        OmniAuth::Utils.deep_merge(super, {
+          'uid' => ui['uid'],
+          'user_info' => ui,
+          'extra' => {'user_hash' => user_hash}
+        })
+      end
+      
+      def user_info
+        user_hash = self.user_hash
+        profile = user_hash['profile']
+        nickname = user_hash['profile']['nickname']
+        {
+          'uid' => profile['guid'],
+          'nickname' => profile['nickname'],
+          'name' => profile['givenName'] || nickname,
+          'image' => profile['image']['imageUrl'],
+          'description' => profile['message'],
+          'urls' => {'Profile' => profile['profileUrl'] }
+        }
+      end
+      
+      def user_hash
+        uid = @access_token.params['xoauth_yahoo_guid']
+        @user_hash ||= MultiJson.decode(@access_token.get("http://social.yahooapis.com/v1/user/#{uid}/profile?format=json").body)
+      end
+    end
+  end
+end

oa-oauth/spec/omniauth/strategies/yahoo_spec.rb

@@ -0,0 +1,5 @@
+require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')
+
+describe OmniAuth::Strategies::Yahoo do
+  it_should_behave_like 'an oauth strategy'
+end