fix: 修改获取系统用户认证信息时username的选择逻辑；（单独设置过的系统用户认证信息登录资产失败）

apps/assets/models/user.py

@@ -248,13 +248,16 @@ class SystemUser(BaseUser):
         if user_id:
             user = get_object_or_none(User, pk=user_id)
 
+        _username = self.username
         if self.username_same_with_user:
             if user and not username:
-                username = user.username
+                _username = user.username
+            else:
+                _username = username
 
         # 加载某个资产的特殊配置认证信息
         try:
-            self.load_asset_special_auth(asset, username)
+            self.load_asset_special_auth(asset, _username)
         except Exception as e:
             logger.error('Load special auth Error: ', e)
             pass

apps/terminal/notifications.py

@@ -32,14 +32,16 @@ class CommandAlertMixin:
         db_setting = Setting.objects.filter(name='SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER').first()
         if db_setting:
             emails = db_setting.value
-        emails = emails or settings.SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER
+        else:
+            emails = settings.SECURITY_INSECURE_COMMAND_EMAIL_RECEIVER
         emails = emails.split(',')
         emails = [email.strip().strip('"') for email in emails]
 
         users = User.objects.filter(email__in=emails)
-        subscription.users.add(*users)
-        subscription.receive_backends = [BACKEND.EMAIL]
-        subscription.save()
+        if users:
+            subscription.users.add(*users)
+            subscription.receive_backends = [BACKEND.EMAIL]
+            subscription.save()
 
 
 class CommandAlertMessage(CommandAlertMixin, SystemMessage):