text: from .app_settings import settings
  
  
  def is_equal_or_sub_url(request_url, checked_url):
      """Stupidly simple method to check for URLs equality"""
      if request_url == checked_url:
          return True
  
      request_url = request_url.rstrip('/')
      checked_url = checked_url.rstrip('/')
      return request_url.startswith(checked_url)
  
  
  def is_white_listed_url(url):
      """Checks if the URL is whitelisted for non-redirect."""
      if url == '/':
          # Homepage is not whitelisted.
          return False
  
      white_listed_urls = settings.redirect_white_list()
      if settings.expired_redirect_url():
          white_listed_urls.append(settings.expired_redirect_url())
  
      for white_listed_url in white_listed_urls:
          if is_equal_or_sub_url(request_url=url, checked_url=white_listed_url):
              return True
  
      return False
  