794d172f85
- Added user model and schema definitions - Implemented JWT token authentication - Created endpoints for user registration and login - Added secure password hashing with bcrypt - Set up SQLite database with SQLAlchemy - Created Alembic migrations - Added user management endpoints - Included health check endpoint generated with BackendIM... (backend.im)
79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
from fastapi import Depends, HTTPException, status
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from sqlalchemy.orm import Session
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from typing import Optional
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from datetime import timedelta
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from jose import JWTError, jwt
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from fastapi.security import OAuth2PasswordBearer
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from app.db.database import get_db
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from app.db.repositories import user_repository
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from app.models.user import User
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from app.schemas.user import UserCreate, UserLogin, TokenData
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from app.core.security import verify_password, get_password_hash, create_access_token, ALGORITHM
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from app.core.config import settings
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.API_V1_STR}/auth/login")
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class AuthService:
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def authenticate_user(self, db: Session, email: str, password: str) -> Optional[User]:
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user = user_repository.get_by_email(db, email)
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if not user:
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return None
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if not verify_password(password, user.hashed_password):
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return None
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return user
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def register_user(self, db: Session, user_in: UserCreate) -> User:
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# Check if email already exists
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db_user = user_repository.get_by_email(db, user_in.email)
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if db_user:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Email already registered"
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)
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# Check if username already exists
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db_user = user_repository.get_by_username(db, user_in.username)
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if db_user:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Username already taken"
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)
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# Create new user
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hashed_password = get_password_hash(user_in.password)
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user_data = user_in.model_dump(exclude={"password"})
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user_data["hashed_password"] = hashed_password
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return user_repository.create(db, user_data)
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def create_token(self, user: User) -> dict:
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access_token_expires = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
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access_token = create_access_token(
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subject=user.id, expires_delta=access_token_expires
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)
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return {"access_token": access_token, "token_type": "bearer"}
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def get_current_user(self, db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)) -> User:
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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, settings.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 = user_repository.get_by_id(db, 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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auth_service = AuthService() |