95 lines
3.0 KiB
Python
95 lines
3.0 KiB
Python
from typing import Annotated, Optional
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from fastapi import Depends, HTTPException, status, Request
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from fastapi.security import OAuth2PasswordBearer
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from jose import jwt, JWTError
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from app.core.config import settings
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from app.domain.schemas.user import UserInDB, TokenPayload
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from app.infra.repositories.user_repository import UserRepository
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from app.infra.db.postgresql.database import Database
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.API_V1_STR}/auth/login")
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# 数据库依赖
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async def get_db(request: Request) -> Database:
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"""
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获取数据库实例
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从 FastAPI app.state 中获取在启动时初始化的数据库连接
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"""
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if not hasattr(request.app.state, "db"):
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raise HTTPException(
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status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
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detail="Database not initialized"
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)
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return request.app.state.db
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async def get_user_repository(db: Database = Depends(get_db)) -> UserRepository:
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"""获取用户仓储实例"""
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return UserRepository(db)
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async def get_current_user(
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token: str = Depends(oauth2_scheme),
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user_repo: UserRepository = Depends(get_user_repository)
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) -> UserInDB:
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"""
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获取当前登录用户
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从 JWT Token 中解析用户信息，并从数据库验证
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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, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
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username: str = payload.get("sub")
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token_type: str = payload.get("type", "access")
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if username is None:
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raise credentials_exception
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if token_type != "access":
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid token type. Access token required.",
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headers={"WWW-Authenticate": "Bearer"},
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)
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except JWTError:
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raise credentials_exception
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# 从数据库获取用户
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user = await user_repo.get_user_by_username(username)
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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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async def get_current_active_user(
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current_user: UserInDB = Depends(get_current_user),
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) -> UserInDB:
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"""
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获取当前活跃用户（必须是激活状态）
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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_403_FORBIDDEN,
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detail="Inactive user"
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)
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return current_user
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async def get_current_superuser(
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current_user: UserInDB = Depends(get_current_user),
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) -> UserInDB:
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"""
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获取当前超级管理员用户
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"""
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if not current_user.is_superuser:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Not enough privileges. Superuser access required."
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)
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return current_user
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