old-roraccounting/app/controllers/static_controller.rb

class StaticController < ActionController::API
  include ActionView::Layouts
  include BasicAuth

  def frontend_index_html
    if params[:path].present?
      send_file params[:path]
    else
      render file: 'protected_public/index.html'
    end
  end

  def frontend_static
    full_path = "protected_public/#{params[:path]}.#{params[:format]}"
    send_file full_path
  rescue ActionController::MissingFile
    render file: 'protected_public/index.html'
  end
end