mirror of
https://github.com/Monadical-SAS/reflector.git
synced 2025-12-20 20:29:06 +00:00
91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
from typing import Annotated, Optional
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from fastapi import Depends, HTTPException
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from pydantic import BaseModel
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from reflector.logger import logger
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from reflector.settings import settings
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token", auto_error=False)
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jwt_public_key = open(f"reflector/auth/jwt/keys/{settings.AUTH_JWT_PUBLIC_KEY}").read()
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jwt_algorithm = settings.AUTH_JWT_ALGORITHM
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jwt_audience = settings.AUTH_JWT_AUDIENCE
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class JWTException(Exception):
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def __init__(self, status_code: int, detail: str):
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self.status_code = status_code
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self.detail = detail
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def __str__(self):
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return f"<JWTException {self.status_code}: {self.detail}>"
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class UserInfo(BaseModel):
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sub: str
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email: str
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def __getitem__(self, key):
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return getattr(self, key)
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class AccessTokenInfo(BaseModel):
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exp: Optional[int] = None
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sub: Optional[str] = None
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class JWTAuth:
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def verify_token(self, token: str):
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try:
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payload = jwt.decode(
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token,
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jwt_public_key,
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algorithms=[jwt_algorithm],
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audience=jwt_audience,
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)
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return payload
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except JWTError as e:
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logger.error(f"JWT error: {e}")
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raise
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def authenticated(token: Annotated[str, Depends(oauth2_scheme)]):
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if token is None:
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raise JWTException(status_code=401, detail="Not authenticated")
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return None
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def current_user(
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token: Annotated[Optional[str], Depends(oauth2_scheme)],
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jwtauth: JWTAuth = Depends(),
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):
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if token is None:
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raise HTTPException(status_code=401, detail="Not authenticated")
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try:
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payload = jwtauth.verify_token(token)
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sub = payload["sub"]
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return UserInfo(sub=sub)
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except JWTError as e:
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logger.error(f"JWT error: {e}")
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raise HTTPException(status_code=401, detail="Invalid authentication")
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def current_user_optional(
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token: Annotated[Optional[str], Depends(oauth2_scheme)],
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jwtauth: JWTAuth = Depends(),
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):
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# we accept no token, but if one is provided, it must be a valid one.
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if token is None:
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return None
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try:
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payload = jwtauth.verify_token(token)
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sub = payload["sub"]
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email = payload["email"]
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return UserInfo(sub=sub, email=email)
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except JWTError as e:
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logger.error(f"JWT error: {e}")
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raise HTTPException(status_code=401, detail="Invalid authentication")
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