'Parse the provider authentication policy arguments into the
internal state of this object
@param args: unqualified provider authentication policy
arguments
@param strict: Whether to raise an exception when bad data is
encountered
@returns: None. The data is parsed into the internal fields of
this object.'

def parseExtensionArgs(self, args, is_openid1, strict=False):

    policies_str = args.get('auth_policies')
    if policies_str:
        auth_policies = policies_str.split('    ')
    elif strict:
        raise ValueError('Missing    auth_policies')
    else:
        auth_policies = []
    if ((len(auth_policies) > 1) and strict and (AUTH_NONE in auth_policies)):
        raise ValueError(('Got    some    auth    policies,    as    well    as    the    special    "none"    URI:    %r' % (auth_policies,)))
    if ('none' in auth_policies):
        msg = '"none"    used    as    a    policy    URI    (see    PAPE    draft    <    5)'
        if strict:
            raise ValueError(msg)
        else:
            warnings.warn(msg, stacklevel=2)
    auth_policies = [u for u in auth_policies if (u not in ['none', AUTH_NONE])]
    self.auth_policies = auth_policies
    for (key, val) in args.iteritems():
        if key.startswith('auth_level.'):
            alias = key[11:]
            if alias.startswith('ns.'):
                continue
            try:
                uri = args[('auth_level.ns.%s' % (alias,))]
            except KeyError:
                if is_openid1:
                    uri = self._default_auth_level_aliases.get(alias)
                else:
                    uri = None
            if (uri is None):
                if strict:
                    raise ValueError(('Undefined    auth    level    alias:    %r' % (alias,)))
            else:
                self.setAuthLevel(uri, val, alias)
    auth_time = args.get('auth_time')
    if auth_time:
        if TIME_VALIDATOR.match(auth_time):
            self.auth_time = auth_time
        elif strict:
            raise ValueError('auth_time    must    be    in    RFC3339    format')
