From 038d0c5412420f58766ebca52223893aa8d207b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=89=8B=E7=93=9C=E4=B8=80=E5=8D=81=E9=9B=AA?=
 <nanaeonn@outlook.com>
Date: Sun, 2 Mar 2025 14:55:47 +0800
Subject: [PATCH] fix: #785

---
 src/onebot/action/group/SetGroupBan.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/onebot/action/group/SetGroupBan.ts b/src/onebot/action/group/SetGroupBan.ts
index aa5cdf26..fd98030e 100644
--- a/src/onebot/action/group/SetGroupBan.ts
+++ b/src/onebot/action/group/SetGroupBan.ts
@@ -16,6 +16,9 @@ export default class SetGroupBan extends OneBotAction<Payload, null> {
     async _handle(payload: Payload): Promise<null> {
         const uid = await this.core.apis.UserApi.getUidByUinV2(payload.user_id.toString());
         if (!uid) throw new Error('uid error');
+        let member_role = (await this.core.apis.GroupApi.getGroupMemberEx(payload.group_id.toString(), uid, true))?.role;
+        if (member_role === 4) throw new Error('cannot ban owner');
+        if (member_role === 3) throw new Error('cannot ban admin');
         // 例如无管理员权限时 result为 120101005 errMsg为 'ERR_NOT_GROUP_ADMIN'
         let ret = await this.core.apis.GroupApi.banMember(payload.group_id.toString(),
             [{ uid: uid, timeStamp: +payload.duration }]);