Redmine

Hey there,

I try to extend the repository controller with a new view action following this article:
http://theadmin.org/articles/how-to-modify-core-redmine-classes-from-a-plugin/

module RedmineGitolite
  module Patches
    module RepositoriesControllerPatch
      unloadable

      def self.included(base)
        base.send(:include, InstanceMethods)
      end

      module InstanceMethods
        def git_info
          @project = Project.find_by_identifier(params[:id])
          @repositories = @project.repositories
          @repository = @repositories.select{|r| r.identifier == params[:repository_id]}.first
          respond_to do |format|
            format.html # show.html.erb
          end
        end
      end
    end
  end
end

In frontend I get a 403 error when accessing the route for this new action.
production.log shows me:
Filter chain halted as :authorize rendered or redirected

So far ...
What is to do to authorize a user for this action?
Would be ok to allow all users with access to #show to view this page.