diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 411481f0e..1edd3bcf5 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -23,23 +23,23 @@ class ApplicationController < ActionController::Base
 
 	# 所有请求必须合法签名
 	def check_sign
-		if !Rails.env.development?
-			Rails.logger.info("66666  #{params}")
-			# suffix = request.url.split(".").last.split("?").first
-			# suffix_arr = ["xls", "xlsx", "pdf", "zip"] # excel文件先注释
-			# unless suffix_arr.include?(suffix)
-				if params[:client_key].present?
-					randomcode = params[:randomcode]
-					# tip_exception(501, "请求不合理") unless (Time.now.to_i - randomcode.to_i).between?(0,5)
-
-					sign = Digest::MD5.hexdigest("#{OPENKEY}#{randomcode}")
-					Rails.logger.info("2222  #{sign}")
-					tip_exception(501, "请求不合理") if sign != params[:client_key]
-				else
-					tip_exception(501, "请求不合理")
-				end
-			# end
-		end
+		# if !Rails.env.development?
+		# 	Rails.logger.info("66666  #{params}")
+		# 	# suffix = request.url.split(".").last.split("?").first
+		# 	# suffix_arr = ["xls", "xlsx", "pdf", "zip"] # excel文件先注释
+		# 	# unless suffix_arr.include?(suffix)
+		# 		if params[:client_key].present?
+		# 			randomcode = params[:randomcode]
+		# 			# tip_exception(501, "请求不合理") unless (Time.now.to_i - randomcode.to_i).between?(0,5)
+		#
+		# 			sign = Digest::MD5.hexdigest("#{OPENKEY}#{randomcode}")
+		# 			Rails.logger.info("2222  #{sign}")
+		# 			tip_exception(501, "请求不合理") if sign != params[:client_key]
+		# 		else
+		# 			tip_exception(501, "请求不合理")
+		# 		end
+		# 	# end
+		# end
 	end
 
 	# 全局配置参数
diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index f23be51d5..7a4130bce 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -25,7 +25,7 @@ class CoursesController < ApplicationController
                                      :delete_course_teacher, :teacher_application_review, :students, :all_course_groups,
                                      :transfer_to_course_group, :delete_from_course, :search_users, :add_students_by_search,
                                      :base_info, :get_historical_courses, :create_group_by_importing_file, :course_videos,
-                                     :attahcment_category_list,:export_member_scores_excel, :duplicate_course,
+                                     :attahcment_category_list,:export_member_scores_excel, :duplicate_course, :delete_course_video,
                                      :switch_to_teacher, :switch_to_assistant, :switch_to_student, :exit_course,
                                      :informs, :update_informs, :online_learning, :update_task_position, :tasks_list,
                                     :join_excellent_course, :export_couser_info, :export_member_act_score, :new_informs,
@@ -109,6 +109,15 @@ class CoursesController < ApplicationController
     @videos = paginate videos
   end
 
+  def delete_course_video
+    video = Video.find_by(uuid: params[:video_id])
+    tip_exception(404, "找不到资源") if video.blank?
+    tip_exception(403, "...") if video.user_id != current_user.id || !current_user.admin_or_business?
+    video.destroy!
+    AliyunVod::Service.delete_video([video.uuid]) rescue nil
+    render_ok
+  end
+
   def visits_plus_one
     new_visits = @course.visits + 1
     @course.update_visits(new_visits)
diff --git a/config/routes.rb b/config/routes.rb
index 63a6e4494..971c1859f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -516,6 +516,7 @@ Rails.application.routes.draw do
         get 'act_score'
         get 'statistics'
         get 'course_videos'
+        delete 'delete_course_video'
         post :inform_up
         post :inform_down
         get :calculate_all_shixun_scores