70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
from datetime import datetime, timedelta
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from typing import Any, Optional, Union
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from fastapi import Depends, HTTPException, status
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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 ValidationError
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from sqlalchemy.orm import Session
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from app.core.security import ACCESS_TOKEN_EXPIRE_MINUTES, ALGORITHM, SECRET_KEY
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from app.db.session import get_db
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from app.models.user import User
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from app.schemas.token import TokenPayload
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from app.services import user as user_service
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
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def create_access_token(*, sub: Union[str, Any], expires_delta: Optional[timedelta] = None) -> str:
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"""
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Create a JWT access token for authentication
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"""
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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=ACCESS_TOKEN_EXPIRE_MINUTES)
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to_encode = {"exp": expire, "sub": str(sub)}
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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(db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)) -> User:
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"""
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Validate access token and return current user
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"""
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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token_data = TokenPayload(**payload)
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except (JWTError, ValidationError):
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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user = user_service.get(db, user_id=token_data.sub)
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if not user:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")
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return user
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def get_current_active_user(current_user: User = Depends(get_current_user)) -> User:
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"""
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Validate that the current user is active
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"""
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if not user_service.is_active(current_user):
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Inactive user")
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return current_user
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def get_current_superuser(current_user: User = Depends(get_current_active_user)) -> User:
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"""
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Validate that the current user is a superuser
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"""
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if not user_service.is_superuser(current_user):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions"
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)
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return current_user |