diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 33d2e109..74424f31 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -75,6 +75,13 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  # saas平台认证权限
+  def saas_auth user=nil
+    logger.info("###################saas_auth:####{params}")
+    true
+  end
+
+
   def user_agent
     logger.info "HTTP_USER_AGENT #{request.env["HTTP_USER_AGENT"]}" 
   end
diff --git a/app/controllers/subjects_controller.rb b/app/controllers/subjects_controller.rb
index 3191899c..f3ea9a98 100644
--- a/app/controllers/subjects_controller.rb
+++ b/app/controllers/subjects_controller.rb
@@ -4,7 +4,7 @@ class SubjectsController < ApplicationController
   before_filter :require_login, :except => [:show]
   before_filter :check_authentication, :except => [:show]
   before_filter :find_subject, :except => [:index, :new, :create, :create_subject, :new_subject, :append_to_stage, :send_to_course]
-
+  before_filter :saas_auth, :only => [:index, :show]
   include ApplicationHelper
   include SubjectsHelper