69f6a404bd
- Create User model and schema - Implement password hashing with bcrypt - Add JWT token-based authentication - Create user and auth endpoints - Update todo endpoints with user authentication - Add alembic migration for user model - Update README with new features
85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
from typing import Optional
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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 sqlalchemy.orm import Session
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from app.core.security import ALGORITHM, SECRET_KEY
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from app.crud.user import get_user
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from app.db.database import get_db
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from app.models.user import User
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from app.schemas.user import TokenData
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# OAuth2 configuration
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/auth/login")
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def get_current_user(
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db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
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) -> User:
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"""
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Validates the access token and returns the current user
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"""
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credentials_exception = 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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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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user_id: str = payload.get("sub")
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if user_id is None:
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raise credentials_exception
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token_data = TokenData(user_id=int(user_id))
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except JWTError:
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raise credentials_exception
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user = get_user(db, user_id=token_data.user_id)
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if user is None:
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raise credentials_exception
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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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Checks if the current user is active
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"""
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if not current_user.is_active:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST, detail="Inactive user"
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)
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return current_user
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def get_optional_current_user(
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db: Session = Depends(get_db), token: Optional[str] = Depends(oauth2_scheme)
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) -> Optional[User]:
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"""
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Similar to get_current_user but doesn't raise an exception for missing token
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"""
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if token is None:
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return None
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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user_id: str = payload.get("sub")
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if user_id is None:
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return None
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token_data = TokenData(user_id=int(user_id))
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except JWTError:
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return None
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user = get_user(db, user_id=token_data.user_id)
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if user is None or not user.is_active:
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return None
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return user |