baoxiang/backend/app/utils/deps.py
2025-12-16 18:06:50 +08:00

64 lines
1.7 KiB
Python

"""
依赖注入
"""
from typing import Generator, Optional
from fastapi import Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer
from sqlalchemy.orm import Session
from ..core.database import get_db
from ..core.security import verify_token
from ..models.user import User, UserRole
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
def get_current_user(
db: Session = Depends(get_db),
token: str = Depends(oauth2_scheme)
) -> User:
"""
获取当前登录用户
"""
credentials_exception = HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Could not validate credentials",
headers={"WWW-Authenticate": "Bearer"},
)
user_id = verify_token(token)
if user_id is None:
raise credentials_exception
user = db.query(User).filter(User.id == int(user_id)).first()
if user is None:
raise credentials_exception
if not user.is_active:
raise HTTPException(status_code=400, detail="Inactive user")
return user
def get_current_admin(current_user: User = Depends(get_current_user)) -> User:
"""
获取当前管理员用户
"""
if current_user.role != UserRole.ADMIN:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="Not enough permissions"
)
return current_user
def get_current_streamer(current_user: User = Depends(get_current_user)) -> User:
"""
获取当前主播用户
"""
if current_user.role not in [UserRole.STREAMER, UserRole.ADMIN]:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="Not a streamer"
)
return current_user