Internal API

lib/api.rb

@@ -19,5 +19,6 @@ module Gitlab
     mount Session
     mount MergeRequests
     mount Notes
+    mount Internal
   end
 end

lib/api/internal.rb

+module Gitlab
+  # Access API
+  class Internal < Grape::API
+
+    get "/allowed" do
+      user = User.find_by_username(params[:username])
+      project = Project.find_with_namespace(params[:project])
+      action = case params[:action]
+               when 'git-upload-pack'
+                 then :download_code
+               when 'git-receive-pack'
+                 then
+                 if project.protected_branch?(params[:ref])
+                   :push_code_to_protected_branches
+                 else
+                   :push_code
+                 end
+               end
+
+      user.can?(action, project)
+    end
+  end
+end
+