diff --git a/Gemfile b/Gemfile
index 859090feb..e454889f6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -49,6 +49,8 @@ gem 'rqrcode_png'
 
 gem 'acts-as-taggable-on', '~> 6.0'
 
+gem 'omniauth-cas'
+
 group :development, :test do
   gem 'rspec-rails', '~> 3.8'
 end
diff --git a/app/controllers/games_controller.rb b/app/controllers/games_controller.rb
index fcdd81953..4c9e7fc0e 100644
--- a/app/controllers/games_controller.rb
+++ b/app/controllers/games_controller.rb
@@ -524,11 +524,11 @@ class GamesController < ApplicationController
         else
           {updated_at: Time.now}
         end
-    logger.info("#############myshixuns_update: ##{myshixuns_update}")
+    #logger.info("#############myshixuns_update: ##{myshixuns_update}")
     @myshixun.update_attributes!(myshixuns_update)
     gitUrl = repo_ip_url @myshixun.repo_path
 
-    logger.info("#############giturl: ##{gitUrl}")
+    #logger.info("#############giturl: ##{gitUrl}")
     gitUrl = Base64.urlsafe_encode64(gitUrl)
 
     shixun_tomcat = edu_setting('cloud_bridge')
@@ -554,7 +554,7 @@ class GamesController < ApplicationController
       testSet << test_cases
     end
 
-    logger.info("##############testSet: #{testSet}")
+    #logger.info("##############testSet: #{testSet}")
 
     testCases = Base64.urlsafe_encode64(testSet.to_json) unless testSet.blank?
     # 评测类型： 0，1，2 用于webssh的评测， 3用于vnc
@@ -581,7 +581,7 @@ class GamesController < ApplicationController
     if secret_rep&.repo_name
       secretGitUrl = repo_ip_url secret_rep.repo_path
       br_params.merge!({secretGitUrl:  Base64.urlsafe_encode64(secretGitUrl), secretDir: secret_rep.secret_dir_path})
-      logger.info("#######br_params:#{br_params}")
+      #logger.info("#######br_params:#{br_params}")
     end
 
     # 中间层交互
@@ -700,10 +700,10 @@ class GamesController < ApplicationController
     resubmit_identifier = @game.resubmit_identifier
     # 如果没有超时并且正在评测中
     # 判断评测中的状态有两种：1、如果之前没有通关的，只需判断status为1即可；如果通过关，则判断game的resubmit_identifier是否更新
-    uid_logger("################game_status: #{@game.status}")
-    uid_logger("################params[:resubmit]: #{params[:resubmit]}")
-    uid_logger("################resubmit_identifier: #{resubmit_identifier}")
-    uid_logger("################time_out: #{params[:time_out]}")
+    #uid_logger("################game_status: #{@game.status}")
+    #uid_logger("################params[:resubmit]: #{params[:resubmit]}")
+    #uid_logger("################resubmit_identifier: #{resubmit_identifier}")
+    #uid_logger("################time_out: #{params[:time_out]}")
     sec_key = params[:sec_key]
     if (params[:time_out] == "false") && ((params[:resubmit].blank? && @game.status == 1) || (params[:resubmit].present? &&
         (params[:resubmit] != resubmit_identifier)))
@@ -762,7 +762,7 @@ class GamesController < ApplicationController
       end
     end
 
-    uid_logger("game is #{@game.id}, record id is #{e_record.try(:id)}, time is**** #{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
+    #uid_logger("game is #{@game.id}, record id is #{e_record.try(:id)}, time is**** #{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
     # 记录前端总耗时
     record_consume_time = e_record.try(:pod_execute)
     max_mem = e_record.try(:max_mem)
@@ -848,7 +848,7 @@ class GamesController < ApplicationController
     @allowed_hidden_testset = @identity < User::EDU_GAME_MANAGER || @game.test_sets_view #解锁的用户
 
     if max_query_index > 0
-      uid_logger("max_query_index is #{max_query_index} game id is #{@game.id}, challenge_id is #{challenge.id}")
+      #uid_logger("max_query_index is #{max_query_index} game id is #{@game.id}, challenge_id is #{challenge.id}")
       @qurey_test_sets = TestSet.find_by_sql("SELECT o.code, o.actual_output, o.out_put, o.result, o.test_set_position, o.ts_time, o.ts_mem,
                               o.query_index, t.is_public, t.input, t.output, o.compile_success FROM outputs o, games g, challenges c,
                               test_sets t where g.id=#{@game.id} and c.id=#{challenge.id} and o.query_index=#{max_query_index}
diff --git a/app/controllers/myshixuns_controller.rb b/app/controllers/myshixuns_controller.rb
index f4c73a6a4..893bf28d7 100644
--- a/app/controllers/myshixuns_controller.rb
+++ b/app/controllers/myshixuns_controller.rb
@@ -91,7 +91,7 @@ class MyshixunsController < ApplicationController
     ActiveRecord::Base.transaction do
       begin
         t1 = Time.now
-        uid_logger_dubug("@@@222222#{params[:jsonTestDetails]}")
+        #uid_logger_dubug("@@@222222#{params[:jsonTestDetails]}")
         jsonTestDetails = JSON.parse(params[:jsonTestDetails])
         timeCost = JSON.parse(params[:timeCost])
         brige_end_time = Time.parse(timeCost['evaluateEnd']) if timeCost['evaluateEnd'].present?
@@ -100,7 +100,7 @@ class MyshixunsController < ApplicationController
         game_id = jsonTestDetails['buildID']
         sec_key = jsonTestDetails['sec_key']
 
-        uid_logger_dubug("training_task_status start-#{game_id}-1#{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
+        #uid_logger_dubug("training_task_status start-#{game_id}-1#{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
         resubmit = jsonTestDetails['resubmit']
         outPut = tran_base64_decode64(jsonTestDetails['outPut'])
 
@@ -262,7 +262,7 @@ class MyshixunsController < ApplicationController
         @sec_key = generate_identifier(EvaluateRecord, 12)
         record = EvaluateRecord.create!(:user_id => current_user.id, :shixun_id => @myshixun.shixun_id, :game_id => game_id,
                                         :identifier => @sec_key, :exec_time => exec_time)
-        uid_logger_dubug("-- game build: file update #{@sec_key}, record id is #{record.id}, time is **** #{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
+        #uid_logger_dubug("-- game build: file update #{@sec_key}, record id is #{record.id}, time is **** #{Time.now.strftime("%Y-%m-%d %H:%M:%S.%L")}")
       end
       # 隐藏代码文件 和  VNC的都不需要走版本库
       vnc =  @myshixun.shixun&.vnc
@@ -277,8 +277,6 @@ class MyshixunsController < ApplicationController
             else
               params[:content]
             end
-        uid_logger_dubug("content_#{@myshixun.identifier}: #{content}")
-        uid_logger_dubug("###last_content_#{@myshixun.identifier}####{last_content}")
 
         if content != last_content
           @content_modified = 1
@@ -286,9 +284,6 @@ class MyshixunsController < ApplicationController
           author_name = current_user.real_name
           author_email = current_user.git_mail
           message = params[:evaluate] == 0 ? "System automatically submitted" : "User submitted"
-          uid_logger_dubug("112233#{author_name}")
-          uid_logger_dubug("112233#{author_email}")
-          uid_logger_dubug("daiao_debug_#{@myshixun.identifier}: #{@repo_path}: #{path}; #{message}; #{content}; ")
           @content = GitService.update_file(repo_path: @repo_path,
                                             file_path: path,
                                             message: message,
diff --git a/app/controllers/oauth/cas_controller.rb b/app/controllers/oauth/cas_controller.rb
new file mode 100644
index 000000000..d5abc8cbe
--- /dev/null
+++ b/app/controllers/oauth/cas_controller.rb
@@ -0,0 +1,13 @@
+class Oauth::CasController < Oauth::BaseController
+  def create
+    user, is_new_user = Oauth::CreateORFindCasUserService.call(current_user, auth_hash)
+    successful_authentication(user)
+
+    render_ok(new_user: is_new_user)
+  end
+
+
+   def auth_hash
+    JSON.parse(CGI.unescape(request.env['omniauth.auth'].extra.to_json))
+  end
+end
\ No newline at end of file
diff --git a/app/models/open_users/cas.rb b/app/models/open_users/cas.rb
new file mode 100644
index 000000000..301a197a0
--- /dev/null
+++ b/app/models/open_users/cas.rb
@@ -0,0 +1,9 @@
+class OpenUsers::Cas < OpenUser
+  def nickname
+    extra&.[]('nickname')
+  end
+
+  def en_type
+    'cas'
+  end
+end
\ No newline at end of file
diff --git a/app/services/oauth/create_or_find_cas_user_service.rb b/app/services/oauth/create_or_find_cas_user_service.rb
new file mode 100644
index 000000000..0b6715471
--- /dev/null
+++ b/app/services/oauth/create_or_find_cas_user_service.rb
@@ -0,0 +1,31 @@
+class Oauth::CreateORFindCasUserService < ApplicationService
+
+  def initialize(user, params)
+    @user   = user
+    @params = params
+  end
+
+  def call
+    return [@user, false] if @user
+
+    open_user = OpenUsers::Cas.find_or_initialize_by(uid: @params['user']) do |u|
+      u.extra = @params
+    end
+
+    return [open_user.user, false] if open_user.persisted?
+
+    @user = User.new(login: User.generate_login('C'), type: 'User', status: User::STATUS_ACTIVE, nickname: @params['comsys_name'], lastname: @params['comsys_name'])
+
+    ActiveRecord::Base.transaction do
+      @user.save!
+      @user.create_user_extension!
+
+      open_user.user = @user
+      open_user.save!
+
+      Rails.cache.write(open_user.can_bind_cache_key, 1, expires_in: 1.hours)
+    end
+
+    [@user, true]
+  end
+end
\ No newline at end of file
diff --git a/config/application.rb b/config/application.rb
index baa0011f2..31a94e7ed 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -29,6 +29,10 @@ module Educoderplus
     # job
     config.active_job.queue_adapter = :sidekiq
 
+    config.middleware.use OmniAuth::Builder do
+      provider :cas, url: 'https://urp.tfswufe.edu.cn/cas'
+    end
+
     config.middleware.insert_before 0, Rack::Cors do
       allow do
         origins '*'
diff --git a/config/routes.rb b/config/routes.rb
index 7592432dd..ba0827676 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -8,8 +8,8 @@ Rails.application.routes.draw do
   get 'attachments/download/:id/:filename', to: 'attachments#show'
   get 'auth/qq/callback', to: 'oauth/qq#create'
   get 'auth/failure', to: 'oauth/base#auth_failure'
+  get 'auth/cas/callback', to: 'oauth/cas#create'
 
-  
 
   resources :edu_settings
   scope '/api' do
@@ -26,7 +26,7 @@ Rails.application.routes.draw do
     put    'commons/unhidden',    to: 'commons#unhidden'
     delete 'commons/delete',      to: 'commons#delete'
 
-    resources :jupyters do 
+    resources :jupyters do
       collection do
         get :save_with_tpi
         get :save_with_tpm
@@ -42,7 +42,7 @@ Rails.application.routes.draw do
         post :import_with_tpm
       end
     end
-    
+
     resources :memos do
       member do
         post :sticky_or_cancel