Merge pull request #3 from Si-Huan/master

update data

worker/ns.py

@@ -1,9 +1,15 @@
 from zzcore import StdAns
-from subprocess import run
+from subprocess import check_output
 
 class Ans(StdAns):
     def GETMSG(self):
+        if len(self.parms) < 2:
+            return '不加参数是坏文明！'
+
         domain = self.raw_msg['message'][4:]
-        r = run(["nslookup",domain],capture_output=True)
-        msg = bytes.decode(r.stdout)
-        return msg
+        try:
+            answer = check_output(['nslookup',domain],shell=False,timeout=4)
+            msg = bytes.decode(answer)
+        except:
+            msg = '汝干了什么！ ns 超时了！'
+        return msg