http.py 文件源码

def get_auth_scheme(response):
    """Return authentication scheme and realm requested by server for 'Basic'
       or 'acsjwt' (DCOS acs auth) or 'oauthjwt' (DCOS acs oauth) type

    :param response: requests.response
    :type response: requests.Response
    :returns: auth_scheme, realm
    :rtype: (str, str)
    """

    if 'www-authenticate' in response.headers:
        auths = response.headers['www-authenticate'].split(',')
        scheme = next((auth_type.rstrip().lower() for auth_type in auths
                       if auth_type.rstrip().lower().startswith("basic") or
                       auth_type.rstrip().lower().startswith("acsjwt") or
                       auth_type.rstrip().lower().startswith("oauthjwt")),
                      None)
        if scheme:
            scheme_info = scheme.split("=")
            auth_scheme = scheme_info[0].split(" ")[0].lower()
            realm = scheme_info[-1].strip(' \'\"').lower()
            return auth_scheme, realm
        else:
            return None, None
    else:
        return None, None