add yupoo as a provider

oa-more/lib/omniauth/more.rb

@@ -4,5 +4,6 @@ module OmniAuth
   module Strategies
     autoload :WindowsLive, 'omniauth/strategies/windows_live'
     autoload :Flickr, 'omniauth/strategies/flickr'
+    autoload :Yupoo, 'omniauth/strategies/yupoo'
   end
 end

oa-more/lib/omniauth/strategies/yupoo.rb

@@ -0,0 +1,67 @@
+require 'omniauth/core'
+require 'digest/md5'
+require 'rest-client'
+require 'multi_json'
+
+module OmniAuth
+  module Strategies
+    class Yupoo
+      include OmniAuth::Strategy
+      attr_accessor :api_key, :secret_key, :options
+
+
+      class CallbackError < StandardError
+        attr_accessor :error, :error_reason
+        def initialize(error, error_reason)
+          self.error = error
+          self.error_reason = error_reason
+        end
+      end
+
+      def initialize(app, api_key, secret_key, options = {})
+        super(app, :yupoo)
+        @api_key = api_key
+        @secret_key = secret_key
+        @options = {:scope => 'read'}.merge(options)
+      end
+
+      protected
+
+      def request_phase
+        params = { :api_key => api_key, :perms => options[:scope] }
+        params[:api_sig] = yupoo_sign(params)
+        query_string = params.collect{ |key,value| "#{key}=#{Rack::Utils.escape(value)}" }.join('&')
+        redirect "http://www.yupoo.com/services/auth/?#{query_string}"
+      end
+
+      def callback_phase
+        params = { :api_key => api_key, :method => 'yupoo.auth.getToken', :frob => request.params['frob'], :format => 'json', :nojsoncallback => '1' }
+        params[:api_sig] = flickr_sign(params)
+
+        response = RestClient.get('http://www.yupoo.com/api/rest/', { :params => params })
+        auth = MultiJson.decode(response.to_s)
+        raise CallbackError.new(auth['code'],auth['message']) if auth['stat'] == 'fail'
+
+        @user = auth['auth']['user']
+        @access_token = auth['auth']['token']['_content']
+
+        super
+      rescue CallbackError => e
+        fail!(:invalid_response, e)
+      end
+
+      def auth_hash
+        OmniAuth::Utils.deep_merge(super, {
+          'uid' => @user['nsid'],
+          'credentials' => { 'token' => @access_token },
+          'user_info' => @user,
+          'extra' => { 'user_hash' => @user }
+        })
+      end
+
+      def yupoo_sign(params)
+        Digest::MD5.hexdigest(secret_key + params.sort{|a,b| a[0].to_s <=> b[0].to_s }.flatten.join)
+      end
+    end
+  end
+end