From 8eba3c1edcfa8418b9de3e9b3391909a17107969 Mon Sep 17 00:00:00 2001
From: yangwei_814916 <yangwei271@huawei.com>
Date: Tue, 28 Feb 2023 14:57:17 +0800
Subject: [PATCH] check json

Signed-off-by: yangwei_814916 <yangwei271@huawei.com>
---
 .../screenservice/sourceservice/dscreenmgr/src/dscreen.cpp    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/screenservice/sourceservice/dscreenmgr/src/dscreen.cpp b/services/screenservice/sourceservice/dscreenmgr/src/dscreen.cpp
index eaef12e4..9ca8cc8f 100644
--- a/services/screenservice/sourceservice/dscreenmgr/src/dscreen.cpp
+++ b/services/screenservice/sourceservice/dscreenmgr/src/dscreen.cpp
@@ -195,6 +195,10 @@ void DScreen::HandleEnable(const std::string &param, const std::string &taskId)
     }
 
     json attrJson = json::parse(param, nullptr, false);
+    if (attrJson.is_discarded()) {
+        DHLOGE("HandleEnable attrJson is invalid");
+        return;
+    }
     int32_t ret = CheckJsonData(attrJson);
     if (ret != DH_SUCCESS) {
         DHLOGE("check json data failed.");
-- 
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