首次提交by MimoCode

backend/app/core/deps.py

@@ -0,0 +1,60 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_db
+from app.core.security import decode_access_token
+
+security = HTTPBearer()
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(security),
+    db: AsyncSession = Depends(get_db)
+):
+    from app.services.user import UserService
+    from app.models.user import User
+
+    token = credentials.credentials
+    payload = decode_access_token(token)
+
+    if payload is None:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="无效的认证令牌"
+        )
+
+    user_id = payload.get("sub")
+    if user_id is None:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="无效的认证令牌"
+        )
+
+    user_service = UserService(db)
+    user = await user_service.get_user(int(user_id))
+
+    if user is None:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="用户不存在"
+        )
+
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="用户已被禁用"
+        )
+
+    return user
+
+
+def require_role(roles: list[str]):
+    async def role_checker(current_user=Depends(get_current_user)):
+        if current_user.role not in roles:
+            raise HTTPException(
+                status_code=status.HTTP_403_FORBIDDEN,
+                detail="权限不足"
+            )
+        return current_user
+    return role_checker