mirror of
https://github.com/simple-login/app.git
synced 2024-09-04 01:21:30 +02:00
82 lines
1.9 KiB
Python
82 lines
1.9 KiB
Python
import base64
|
|
import hashlib
|
|
from typing import Optional
|
|
|
|
import arrow
|
|
from jwcrypto import jwk, jwt
|
|
|
|
from app.config import OPENID_PRIVATE_KEY_PATH, URL
|
|
from app.log import LOG
|
|
from app.models import ClientUser
|
|
|
|
with open(OPENID_PRIVATE_KEY_PATH, "rb") as f:
|
|
_key = jwk.JWK.from_pem(f.read())
|
|
|
|
|
|
def get_jwk_key() -> dict:
|
|
return _key._public_params()
|
|
|
|
|
|
def make_id_token(
|
|
client_user: ClientUser,
|
|
nonce: Optional[str] = None,
|
|
access_token: Optional[str] = None,
|
|
code: Optional[str] = None,
|
|
):
|
|
"""Make id_token for OpenID Connect
|
|
According to RFC 7519, these claims are mandatory:
|
|
- iss
|
|
- sub
|
|
- aud
|
|
- exp
|
|
- iat
|
|
"""
|
|
claims = {
|
|
"iss": URL,
|
|
"sub": str(client_user.id),
|
|
"aud": client_user.client.oauth_client_id,
|
|
"exp": arrow.now().shift(hours=1).timestamp,
|
|
"iat": arrow.now().timestamp,
|
|
"auth_time": arrow.now().timestamp,
|
|
}
|
|
|
|
if nonce:
|
|
claims["nonce"] = nonce
|
|
|
|
if access_token:
|
|
claims["at_hash"] = id_token_hash(access_token)
|
|
|
|
if code:
|
|
claims["c_hash"] = id_token_hash(code)
|
|
|
|
claims = {**claims, **client_user.get_user_info()}
|
|
|
|
jwt_token = jwt.JWT(
|
|
header={"alg": "RS256", "kid": _key._public_params()["kid"]}, claims=claims
|
|
)
|
|
jwt_token.make_signed_token(_key)
|
|
return jwt_token.serialize()
|
|
|
|
|
|
def verify_id_token(id_token) -> bool:
|
|
try:
|
|
jwt.JWT(key=_key, jwt=id_token)
|
|
except Exception:
|
|
LOG.exception("id token not verified")
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
|
|
def decode_id_token(id_token) -> jwt.JWT:
|
|
return jwt.JWT(key=_key, jwt=id_token)
|
|
|
|
|
|
def id_token_hash(value, hashfunc=hashlib.sha256):
|
|
"""
|
|
Inspired from oauthlib
|
|
"""
|
|
digest = hashfunc(value.encode()).digest()
|
|
left_most = len(digest) // 2
|
|
return base64.urlsafe_b64encode(digest[:left_most]).decode().rstrip("=")
|