import jwt


def generate_jwt(username):
    # https://www.jianshu.com/p/03ad32c1586c
    headers = {
        "alg": "HS256",
        "typ": "JWT"
    }
    salt = "acvv"
    payload = {
        "name": username
    }
    token = jwt.encode(payload=payload, key=salt, algorithm='HS256', headers=headers).decode('utf-8')
    return jwt


def check_jwt(cookie_jwt):
    salt = "acvv"
    info = jwt.decode(cookie_jwt, salt, True, algorithm='HS256')
    return info['name']