text: from django.conf import settings
  from django.contrib.staticfiles import utils
  from django.contrib.staticfiles.views import serve
  from django.core.handlers.wsgi import WSGIHandler, get_path_info
  from django.utils.six.moves.urllib.parse import urlparse
  from django.utils.six.moves.urllib.request import url2pathname
  
  
  class StaticFilesHandler(WSGIHandler):
      """
      WSGI middleware that intercepts calls to the static files directory, as
      defined by the STATIC_URL setting, and serves those files.
      """
      # May be used to differentiate between handler types (e.g. in a
      # request_finished signal)
      handles_files = True
  
      def __init__(self, application):
          self.application = application
          self.base_url = urlparse(self.get_base_url())
          super(StaticFilesHandler, self).__init__()
  
      def get_base_url(self):
          utils.check_settings()
          return settings.STATIC_URL
  
      def _should_handle(self, path):
          """
          Checks if the path should be handled. Ignores the path if:
  
          * the host is provided as part of the base_url
          * the request's path isn't under the media path (or equal)
          """
          return path.startswith(self.base_url[2]) and not self.base_url[1]
  
      def file_path(self, url):
          """
          Returns the relative path to the media file on disk for the given URL.
          """
          relative_url = url[len(self.base_url[2]):]
          return url2pathname(relative_url)
  
      def serve(self, request):
          """
          Actually serves the request path.
          """
          return serve(request, self.file_path(request.path), insecure=True)
  
      def get_response(self, request):
          from django.http import Http404
  
          if self._should_handle(request.path):
              try:
                  return self.serve(request)
              except Http404 as e:
                  if settings.DEBUG:
                      from django.views import debug
                      return debug.technical_404_response(request, e)
          return super(StaticFilesHandler, self).get_response(request)
  
      def __call__(self, environ, start_response):
          if not self._should_handle(get_path_info(environ)):
              return self.application(environ, start_response)
          return super(StaticFilesHandler, self).__call__(environ, start_response)
  