Fix timeseries chart date format. (#7388)

scripts/lua/rest/v2/get/timeseries/date_format.lua

@@ -0,0 +1,50 @@
+--
+-- (C) 2013-23 - ntop.org
+--
+
+--
+-- Read actually date format selected by the user on the user preferences
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v2/get/timseries/date_format.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+local dirs = ntop.getDirs()
+
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+local rest_utils = require("rest_utils")
+local is_range_picker = toboolean(_GET["is_range_picker"]) or false
+
+
+local key, time
+if _SESSION then
+    key = ntop.getPref('ntopng.user.' .. (_SESSION["user"] or "") .. '.date_format')
+end
+
+--dateFormat: "d/m/Y H:i", (for timerange_picker)
+
+if(key == "big_endian") then
+-- do NOT specify the ! to indicate UTC time; the time must be in Local Server Time
+    if (is_range_picker) then
+        time = "Y/m/d H:i"
+    else
+        time = "YYYY/MM/DD HH:mm"
+    end
+elseif( key == "middle_endian") then
+-- do NOT specify the ! to indicate UTC time; the time must be in Local Server Time
+    if (is_range_picker) then
+        time = "m/d/Y H:i"
+    else
+        time = "MM/DD/YYYY HH:mm"
+    end
+else
+-- do NOT specify the ! to indicate UTC time; the time must be in Local Server Time
+    if (is_range_picker) then
+        time = "d/m/Y H:i"
+    else    
+        time = "DD/MM/YYYY HH:mm"
+    end
+end
+
+rest_utils.answer(rest_utils.consts.success.ok, time)