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https://github.com/evgen-app/chess_rpg_backend.git
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46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
import jwt
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import pytz
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from datetime import datetime
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from django.conf import settings
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from jwt import ExpiredSignatureError, InvalidSignatureError
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TIMEZONE = pytz.timezone("Europe/Moscow")
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def sign_jwt(data: dict, t_life: None | int = None) -> str:
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"""generate and sign jwt with iat and exp using data from settings"""
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iat = int(datetime.now(tz=TIMEZONE).timestamp())
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exp = iat + settings.TOKEN_EXP if not t_life else iat + t_life
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payload = {"iat": iat, "exp": exp}
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for nm, el in data.items():
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if nm not in ["iat", "exp"]:
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payload[nm] = el
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secret = settings.SECRET_KEY
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token = jwt.encode(payload=payload, key=secret)
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return token
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def read_jwt(token: str) -> dict | bool:
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"""reads jwt, validates it and return payload if correct"""
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header_data = jwt.get_unverified_header(token)
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secret = settings.SECRET_KEY
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try:
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payload = jwt.decode(token, key=secret, algorithms=[header_data["alg"]])
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except ExpiredSignatureError as e:
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return False
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except InvalidSignatureError as e:
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return False
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if "exp" not in payload:
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return False
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if int(datetime.now(tz=TIMEZONE).timestamp()) > payload["exp"]:
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return False
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payload.pop("iat", None)
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payload.pop("exp", None)
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return payload
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