utils.py 文件源码

def refresh_user_token(user_social):
    """
    Utility function to refresh the access token if is (almost) expired

    Args:
        user_social (UserSocialAuth): a user social auth instance
    """
    try:
        last_update = datetime.fromtimestamp(user_social.extra_data.get('updated_at'), tz=pytz.UTC)
        expires_in = timedelta(seconds=user_social.extra_data.get('expires_in'))
    except TypeError:
        _send_refresh_request(user_social)
        return
    # small error margin of 5 minutes to be safe
    error_margin = timedelta(minutes=5)
    if now_in_utc() - last_update >= expires_in - error_margin:
        _send_refresh_request(user_social)