b2fbf435a7158a02c8199015e0c8a8a794c02f56,src/python/pants/auth/basic_auth.py,BasicAuth,authenticate,#BasicAuth#Any#Any#Any#,36

Before Change

      auth = None  // requests will use the netrc creds.
    response = requests.get(url, auth=auth)
    if response.status_code != requests.codes.ok:
      raise BasicAuthException("Failed to auth against {}. Status code {}.".format(
        response, response.status_code))
    cookies.update(response.cookies)

After Change

    url = provider_config.get("url")
    if not url:
      raise BasicAuthException("No url found in config for provider {}.".format(provider))
    if not self.get_options().allow_insecure_urls and not url.startswith("https://"):
      raise BasicAuthException("Auth url for provider {} is not secure: {}.".format(provider, url))

    if creds:
      auth = requests.auth.HTTPBasicAuth(creds.username, creds.password)
    else:
      auth = None  // requests will use the netrc creds.
    response = requests.get(url, auth=auth)

    if response.status_code != requests.codes.ok:
      if response.status_code == requests.codes.unauthorized:
        parsed = www_authenticate.parse(response.headers.get("WWW-Authenticate", ""))
        if "Basic" in parsed:
          raise Challenged(url, response.status_code, response.reason, parsed["Basic"]["realm"])
      raise BasicAuthException(url, response.status_code, response.reason)

Instances