fbarc.py 文件源码

def load_keys(args):
    """
    Get the Facebook API keys. Order of precedence is command line,
    environment, config file.
    """
    config = {}
    input_app_id = None
    input_app_secret = None
    input_short_access_token = None
    if args.config:
        config = load_config(args)
        if not config:
            input_app_id, input_app_secret, input_short_access_token = input_keys(args)
            if not input_short_access_token:
                save_config(args, input_app_id, input_app_secret)

    app_id = args.app_id or os.environ.get('APP_ID') or config.get('app_id') or input_app_id
    app_secret = args.app_secret or os.environ.get('APP_SECRET') or config.get('app_secret') or input_app_secret
    short_access_token = args.access_token or os.environ.get('ACCESS_TOKEN') or input_short_access_token
    long_access_token = config.get('access_token')
    expires_at = None
    if 'expires_at' in config:
        expires_at = iso8601.parse_date(config['expires_at'])

    if not (app_id and app_secret):
        sys.exit('App id and secret are required.')
    return app_id, app_secret, short_access_token, long_access_token, expires_at