Function sign_jwt_bearer_assertion

authlib/oauth2/rfc7523/assertion.py:9–47

(
    key,
    issuer,
    audience,
    subject=None,
    issued_at=None,
    expires_at=None,
    claims=None,
    header=None,
    **kwargs,
)

def sign_jwt_bearer_assertion(
    key,
    issuer,
    audience,
    subject=None,
    issued_at=None,
    expires_at=None,
    claims=None,
    header=None,
    **kwargs,
):
    if header is None:
        header = {}
    alg = kwargs.pop("alg", None)
    if alg:
        header["alg"] = alg
    if "alg" not in header:
        raise ValueError("Missing 'alg' in header")

    payload = {"iss": issuer, "aud": audience}

    # subject is not required in Google service
    if subject:
        payload["sub"] = subject

    if not issued_at:
        issued_at = int(time.time())

    expires_in = kwargs.pop("expires_in", 3600)
    if expires_at is None:
        expires_at = issued_at + expires_in

    payload["iat"] = issued_at
    payload["exp"] = expires_at

    if claims:
        payload.update(claims)

    return jwt.encode(header, payload, import_any_key(key), algorithms=[header["alg"]])


def client_secret_jwt_sign(