6 files changed, 31 insertions, 6 deletions
diff --git a/app/controllers/projects/application_controller.rb b/app/controllers/projects/application_controller.rb
index 657ee94cfd7..74150ad606b 100644
--- a/app/controllers/projects/application_controller.rb
+++ b/app/controllers/projects/application_controller.rb
@@ -68,7 +68,9 @@ class Projects::ApplicationController < ApplicationController
   end
 
   def require_non_empty_project
-    redirect_to namespace_project_path(@project.namespace, @project) if @project.empty_repo?
+    # Be sure to return status code 303 to avoid a double DELETE:
+    # http://api.rubyonrails.org/classes/ActionController/Redirecting.html
+    redirect_to namespace_project_path(@project.namespace, @project), status: 303 if @project.empty_repo?
   end
 
   def require_branch_head
diff --git a/app/controllers/projects/badges_controller.rb b/app/controllers/projects/badges_controller.rb
index 6d4d4360988..824aa41db51 100644
--- a/app/controllers/projects/badges_controller.rb
+++ b/app/controllers/projects/badges_controller.rb
@@ -1,5 +1,12 @@
 class Projects::BadgesController < Projects::ApplicationController
-  before_action :no_cache_headers
+  layout 'project_settings'
+  before_action :authorize_admin_project!, only: [:index]
+  before_action :no_cache_headers, except: [:index]
+
+  def index
+    @ref = params[:ref] || @project.default_branch || 'master'
+    @build_badge = Gitlab::Badge::Build.new(@project, @ref)
+  end
 
   def build
     badge = Gitlab::Badge::Build.new(project, params[:ref])
diff --git a/app/controllers/projects/branches_controller.rb b/app/controllers/projects/branches_controller.rb
index c0a53734921..d09e7375b67 100644
--- a/app/controllers/projects/branches_controller.rb
+++ b/app/controllers/projects/branches_controller.rb
@@ -48,7 +48,7 @@ class Projects::BranchesController < Projects::ApplicationController
     respond_to do |format|
       format.html do
         redirect_to namespace_project_branches_path(@project.namespace,
-                                                    @project)
+                                                    @project), status: 303
       end
       format.js { render status: status[:return_code] }
     end
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 49064f5d505..ae613f5e093 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -207,20 +207,20 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     #This is always source
     @source_project = @merge_request.nil? ? @project : @merge_request.source_project
     @commit = @repository.commit(params[:ref]) if params[:ref].present?
+    render layout: false
   end
 
   def branch_to
     @target_project = selected_target_project
     @commit = @target_project.commit(params[:ref]) if params[:ref].present?
+    render layout: false
   end
 
   def update_branches
     @target_project = selected_target_project
     @target_branches = @target_project.repository.branch_names
 
-    respond_to do |format|
-      format.js
-    end
+    render layout: false
   end
 
   def ci_status
diff --git a/app/controllers/projects/refs_controller.rb b/app/controllers/projects/refs_controller.rb
index 00df1c9c965..d79f16e6a5a 100644
--- a/app/controllers/projects/refs_controller.rb
+++ b/app/controllers/projects/refs_controller.rb
@@ -24,6 +24,8 @@ class Projects::RefsController < Projects::ApplicationController
             namespace_project_find_file_path(@project.namespace, @project, @id)
           when "graphs_commits"
             commits_namespace_project_graph_path(@project.namespace, @project, @id)
+          when "badges"
+            namespace_project_badges_path(@project.namespace, @project, ref: @id)
           else
             namespace_project_commits_path(@project.namespace, @project, @id)
           end
diff --git a/app/controllers/projects/wikis_controller.rb b/app/controllers/projects/wikis_controller.rb
index 02ceb8f4334..9f3a4a69721 100644
--- a/app/controllers/projects/wikis_controller.rb
+++ b/app/controllers/projects/wikis_controller.rb
@@ -88,6 +88,20 @@ class Projects::WikisController < Projects::ApplicationController
     )
   end
 
+  def markdown_preview
+    text = params[:text]
+
+    ext = Gitlab::ReferenceExtractor.new(@project, current_user, current_user)
+    ext.analyze(text)
+
+    render json: {
+      body: view_context.markdown(text, pipeline: :wiki, project_wiki: @project_wiki),
+      references: {
+        users: ext.users.map(&:username)
+      }
+    }
+  end
+
   def git_access
   end