static_files_handler.py 文件源码

def handle(self, match, environ, start_response):
    """Serves the file content matching the request.

    Args:
      match: The re.MatchObject containing the result of matching the URL
        against this handler's URL pattern.
      environ: An environ dict for the current request as defined in PEP-333.
      start_response: A function with semantics defined in PEP-333.

    Returns:
      An iterable over strings containing the body of the HTTP response.
    """
    relative_path = match.expand(self._url_map.static_files)
    if not self._is_relative_path_valid(relative_path):
      if self._url_map.require_matching_file:
        return None
      else:
        return self._not_found_404(environ, start_response)
    full_path = os.path.join(self._root_path, relative_path)
    return self._handle_path(full_path, environ, start_response)