taskqueue.py 文件源码

def _parse_relative_url(relative_url):
  """Parses a relative URL and splits it into its path and query string.

  Args:
    relative_url: The relative URL, starting with a '/'.

  Returns:
    Tuple (path, query) where:
      path: The path in the relative URL.
      query: The query string in the URL without the '?' character.

  Raises:
    _RelativeUrlError if the relative_url is invalid for whatever reason.
  """
  if not relative_url:
    raise _RelativeUrlError('Relative URL is empty')
  (scheme, netloc, path, query, fragment) = urlparse.urlsplit(relative_url)
  if scheme or netloc:
    raise _RelativeUrlError('Relative URL may not have a scheme or location')
  if fragment:
    raise _RelativeUrlError('Relative URL may not specify a fragment')
  if not path or path[0] != '/':
    raise _RelativeUrlError('Relative URL path must start with "/"')
  return path, query