CA-421635 Show the real NTP servers in dhcp NTP mode

Get the servers form `chronyc -c sources`. The output
is the csv format.

Signed-off-by: Changlei Li <changlei.li@cloud.com>

Author: changlei-li

XSConsoleData.py

@@ -672,6 +672,19 @@ def SetTimeManually(self, date):
         getstatusoutput("date --set='%s'" % timestring)
         getstatusoutput("hwclock --utc --systohc")
 
+    def GetNTPServersFromChronyc(self):
+        servers =[]
+        (status, output) = getstatusoutput("chronyc -c sources")
+        # output is csv format: ^,*,10.79.16.11,5,7,377,13,-0.000067081,-0.000084192,0.172569677
+        if status == 0:
+            for line in output.split("\n"):
+                fields = line.split(",")
+                if len(fields) >= 3:
+                    server = fields[2].strip()
+                    if server != "":
+                        servers.append(server)
+        return servers
+
     def SaveToResolveConf(self):
         # Double-check authentication
         Auth.Inst().AssertAuthenticated()

plugins-base/XSFeatureNTP.py

@@ -428,11 +428,7 @@ def StatusUpdateHandler(cls, inPane):
 
             servers = data.ntp.servers([])
             if ntpMethod == "DHCP":
-                gateway = data.ManagementGateway()
-                if gateway is None:
-                    gateway = "Refreshing..."
-
-                servers = [Lang(str(gateway) + " (DHCP)")]
+                servers = data.GetNTPServersFromChronyc()
 
             inPane.NewLine()