feat: 初始提交

backend/app/core/dependencies.py

@@ -0,0 +1,33 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from ..core.security import decode_access_token
+from ..db.session import get_session
+from ..repositories.user_repository import UserRepository
+from ..schemas.user import UserInDB
+from ..services.auth_service import AuthService
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/token")
+
+
+async def get_current_user(
+    token: str = Depends(oauth2_scheme),
+    session: AsyncSession = Depends(get_session),
+) -> UserInDB:
+    payload = decode_access_token(token)
+    username = payload["sub"]
+    repo = UserRepository(session)
+    user = await repo.get_by_username(username)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="用户不存在或已被禁用")
+    service = AuthService(session)
+    schema = UserInDB.model_validate(user)
+    schema.must_change_password = service.requires_password_reset(user)
+    return schema
+
+
+async def get_current_admin(current_user: UserInDB = Depends(get_current_user)) -> UserInDB:
+    if not current_user.is_admin:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="需要管理员权限")
+    return current_user