Bugfix: catch error from ParseConditions and refactor ParseConditions

Signed-off-by: Zhengyi Lai <zheng1@yunify.com>

pkg/kapis/openpitrix/v1/handler.go

@@ -867,6 +867,12 @@ func (h *openpitrixHandler) ListRepos(req *restful.Request, resp *restful.Respon
 	reverse := params.GetBoolValueWithDefault(req, params.ReverseParam, false)
 	conditions, err := params.ParseConditions(req)
 
+	if err != nil {
+		klog.V(4).Infoln(err)
+		api.HandleBadRequest(resp, nil, err)
+		return
+	}
+
 	if req.PathParameter("workspace") != "" {
 		conditions.Match[openpitrix.WorkspaceLabel] = req.PathParameter("workspace")
 	}