51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
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from typing import Annotated
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from fastapi import Depends, HTTPException, status
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.database import get_db
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from app.core.security import decode_access_token
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from app.models import User
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security = HTTPBearer()
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async def get_current_user(
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credentials: Annotated[HTTPAuthorizationCredentials, Depends(security)],
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db: Annotated[AsyncSession, Depends(get_db)],
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) -> User:
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token = credentials.credentials
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payload = decode_access_token(token)
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if payload is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid or expired token",
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headers={"WWW-Authenticate": "Bearer"},
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)
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user_id = payload.get("sub")
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if user_id is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid token payload",
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)
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result = await db.execute(select(User).where(User.id == int(user_id)))
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user = result.scalar_one_or_none()
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if user is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="User not found",
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)
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return user
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# Type aliases for cleaner dependency injection
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CurrentUser = Annotated[User, Depends(get_current_user)]
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DbSession = Annotated[AsyncSession, Depends(get_db)]
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