qixinbo
57 lines
2.1 KiB
Python
57 lines
2.1 KiB
Python
from datetime import datetime, timedelta
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from typing import Optional
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from jose import jwt, JWTError
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from passlib.context import CryptContext
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from fastapi import HTTPException, Depends, status
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from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
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from pydantic import BaseModel
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SECRET_KEY = "your-super-secret-key-for-dataclaw" # In production, use env variable
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ALGORITHM = "HS256"
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ACCESS_TOKEN_EXPIRE_MINUTES = 30 * 24 * 60 # 30 days
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pwd_context = CryptContext(schemes=["pbkdf2_sha256"], deprecated="auto")
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security = HTTPBearer()
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class CurrentUser(BaseModel):
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id: int
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username: str
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is_admin: bool = False
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def verify_password(plain_password, hashed_password):
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return pwd_context.verify(plain_password, hashed_password)
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def get_password_hash(password):
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return pwd_context.hash(password)
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(minutes=15)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
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return encoded_jwt
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def get_current_user(credentials: HTTPAuthorizationCredentials = Depends(security)) -> CurrentUser:
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unauthorized = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid authentication credentials",
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)
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try:
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payload = jwt.decode(credentials.credentials, SECRET_KEY, algorithms=[ALGORITHM])
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except JWTError:
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raise unauthorized
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user_id = payload.get("id")
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username = payload.get("sub")
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is_admin = bool(payload.get("is_admin", False))
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if user_id is None or username is None:
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raise unauthorized
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return CurrentUser(id=user_id, username=username, is_admin=is_admin)
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def get_admin_user(current_user: CurrentUser = Depends(get_current_user)) -> CurrentUser:
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if not current_user.is_admin:
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Admin permission required")
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return current_user
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