diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 3e41e2c91..37383712f 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -92,7 +92,13 @@ class MessagesController < ApplicationController
       @message.board = @board
       @message.safe_attributes = params[:message]
       if request.post?
-        @message.save_attachments(params[:attachments])
+        if @project
+          is_public = @project.is_public
+        elsif @course
+          is_public = @course.is_public
+        end
+        # 公开项目/课程上传的资源是公开的，私有项目上传的是私有的
+        @message.save_attachments_containers(params[:attachments], User.current, is_public)
         if @message.save
           # 更新kindeditor上传的图片资源所有者
           if params[:asset_id]
diff --git a/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb b/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
index f5b48544d..20bc0a7ad 100644
--- a/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
+++ b/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
@@ -172,6 +172,76 @@ module Redmine
           {:files => saved_attachments, :unsaved => unsaved_attachments}
         end
 
+        # 扩展方法,因为类型太多，为了不影响其它的
+        # 最终需要形成一个方法
+        def save_attachments_containers(attachments, author, is_public)
+          # 清除临时文件
+          if attachments
+            tempAttach = attachments[:dummy]
+            if  tempAttach && tempAttach[:file]
+              attachments.delete(:dummy)
+            end
+          end
+
+          if attachments.is_a?(Hash)
+            attachments = attachments.stringify_keys
+            attachments = attachments.to_a.sort {|a, b|
+              if a.first.to_i > 0 && b.first.to_i > 0
+                a.first.to_i <=> b.first.to_i
+              elsif a.first.to_i > 0
+                1
+              elsif b.first.to_i > 0
+                -1
+              else
+                a.first <=> b.first
+              end
+            }
+            attachments = attachments.map(&:last)
+          end
+          if attachments.is_a?(Array)
+            attachments.each do |attachment|
+              if attachment.is_a?(Hash)
+                a = nil
+                file = attachment['file']
+                token = attachment['token']
+                t = file && file.size > 0
+                if file && file.size > 0
+                  a = Attachment.create(:file => file, :author => author)
+                elsif token
+                  # 通过token值找到对应的attachment
+                  a = Attachment.find_by_token_only(token)
+                  if a
+                    a.filename = attachment['filename'] unless attachment['filename'].blank?
+                    a.content_type = attachment['content_type']
+                  end
+                end
+              end
+
+              if a && !attachment['is_public_checkbox']
+                # 考虑到更新操作，所以全部设置为公开，私有项目、课程是不能访问的
+                if is_public
+                  a.is_public = true
+                else
+                  a.is_public = false
+                end
+              elsif a && attachment['is_public_checkbox']
+                a.is_public = true
+              end
+              set_attachment_public(a) if a
+              next unless a
+              a.description = attachment['description'].to_s.strip
+              a.attachtype = @curattachment_type
+              if a.new_record?
+                unsaved_attachments << a
+              else
+                saved_attachments << a
+              end
+            end
+          end
+          {:files => saved_attachments, :unsaved => unsaved_attachments}
+        end
+
+
         def attach_saved_attachments
           saved_attachments.each do |attachment|
             self.attachments << attachment