diff --git a/Gemfile b/Gemfile
index 660a7ff49..cd2607a4f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,7 @@ unless RUBY_PLATFORM =~ /w32/
   gem 'iconv'
 end
 
+gem 'grack', path:'./lib/grack'
 gem 'rest-client'
 gem "mysql2", "= 0.3.18"
 gem 'redis-rails'
diff --git a/config/configuration.yml b/config/configuration.yml
index 390754a87..4c786ad28 100644
--- a/config/configuration.yml
+++ b/config/configuration.yml
@@ -197,9 +197,12 @@ default:
   #max_concurrent_ajax_uploads: 2
   #pic_types: "bmp,jpeg,jpg,png,gif"
 
+  repository_root_path: '/Users/guange/repository'
+
 # specific configuration options for production environment
 # that overrides the default ones
 production:
+  repository_root_path: '/home/pdl/redmine-2.3.2-0/apache2/htdocs'
   cookie_domain: ".trustie.net"
   rmagick_font_path: /usr/share/fonts/ipa-mincho/ipam.ttf
   email_delivery:
diff --git a/config/routes.rb b/config/routes.rb
index b5a244345..16d8da882 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -28,6 +28,9 @@
 RedmineApp::Application.routes.draw do
   mount Mobile::API => '/api'
 
+  # Enable Grack support
+  mount Trustie::Grack.new, at: '/', constraints: lambda { |request| /[-\/\w\.]+\.git\//.match(request.path_info) }, via: [:get, :post]
+
   resources :homework_users
   resources :no_uses
   delete 'no_uses', :to => 'no_uses#delete'
diff --git a/lib/grack b/lib/grack
new file mode 160000
index 000000000..949be9116
--- /dev/null
+++ b/lib/grack
@@ -0,0 +1 @@
+Subproject commit 949be9116a76b50a6f86baf507dec4c4d7fb34c6
diff --git a/lib/trustie.rb b/lib/trustie.rb
index b6cec3c86..3636efd95 100644
--- a/lib/trustie.rb
+++ b/lib/trustie.rb
@@ -1,2 +1,3 @@
 require 'trustie/utils'
 require 'trustie/utils/image'
+require 'trustie/grack/grack'
diff --git a/lib/trustie/grack/auth.rb b/lib/trustie/grack/auth.rb
new file mode 100644
index 000000000..c27477be2
--- /dev/null
+++ b/lib/trustie/grack/auth.rb
@@ -0,0 +1,55 @@
+require 'rack/auth/basic'
+require 'rack/auth/abstract/handler'
+require 'rack/auth/abstract/request'
+
+module Grack
+  class Auth < Rack::Auth::Basic
+    def call(env)
+      @env = env
+      @request = Rack::Request.new(env)
+      @auth = Request.new(env)
+
+      if not @auth.provided?
+        unauthorized
+      elsif not @auth.basic?
+        bad_request
+      else
+        result = if (access = valid?(@auth) and access == true)
+          @env['REMOTE_USER'] = @auth.username
+          @app.call(env)
+        else
+          if access == '404'
+            render_not_found
+          elsif access == '403'
+            #render_no_access
+            unauthorized
+          else
+            unauthorized
+          end
+        end
+        result
+      end
+    end# method call
+
+
+    def render_not_found
+      [404, {"Content-Type" => "text/plain"}, ["Not Found"]]
+    end
+
+    def valid?(auth)
+      match = @request.path_info.match(/(\/.+\.git)\//)
+      if match 
+        rep = Repository.where("root_url like ?", "%#{match[1]}")
+        return "404" if rep.empty?
+        username, password = auth.credentials
+        user, last_login_on = User.try_to_login(username, password)
+        return '403' unless user
+        if user.member_of?(rep.first.project) || user.admin?
+          return true
+        end
+      end
+      false
+    end
+  end# class Auth
+end# module Grack
+
diff --git a/lib/trustie/grack/grack.rb b/lib/trustie/grack/grack.rb
new file mode 100644
index 000000000..1dc4bdc0d
--- /dev/null
+++ b/lib/trustie/grack/grack.rb
@@ -0,0 +1,18 @@
+require_relative 'auth'
+
+module Trustie
+  module Grack
+
+    def self.new
+      Rack::Builder.new do
+        use ::Grack::Auth
+        run ::Grack::Server.new(
+          project_root: Redmine::Configuration['repository_root_path'] || "/home/pdl/redmine-2.3.2-0/apache2/htdocs", 
+          upload_pack: true,
+          receive_pack:true
+        )
+      end
+    end
+
+  end
+end