def _assert_tag_value_is_url()

in tools/yaml_parser.py [0:0]

• 12 lines of code
• 5 McCabe index (conditional complexity)

  def _assert_tag_value_is_url(self, tag_value: str) -> None:
    """Checks that `tag_value` is a valid URL as specified by the config.

    Args:
      tag_value: String that should be checked for being an allowed URL.

    Raises:
      ValueError:
        - if `tag_value` is not a valid URL.
        - if `tag_value` is not an HTTPS URL.
        - if the config specifies a `required_domain` but the domain of
          `tag_value` is unequal to that required domain.
    """
    try:
      result = urllib.parse.urlparse(tag_value)
    except ValueError:
      raise ValueError(f"{tag_value} is no valid URL.")
    if result.scheme != _HTTPS_SCHEME:
      raise ValueError(f"{tag_value} is not an HTTPS URL.")
    if (self._url_tag_config.required_domain is not None and
        self._url_tag_config.required_domain != result.netloc):
      raise ValueError("URL must lead to domain "
                       f"{self._url_tag_config.required_domain} but is "
                       f"{result.netloc}.")