Add support for system configuration (WIP)

scripts/lua/system_setup_ui/date_time.lua

@@ -0,0 +1,98 @@
+--
+-- (C) 2013-20 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+package.path = dirs.installdir .. "/pro/scripts/lua/nedge/modules/?.lua;" .. package.path
+package.path = dirs.installdir .. "/pro/scripts/lua/nedge/modules/system_config/?.lua;" .. package.path
+
+local system_setup_ui_utils = require "system_setup_ui_utils"
+require "lua_utils"
+require "prefs_utils"
+local tz_utils = require("tz_utils")
+prefsSkipRedis(true)
+
+local nf_config = require("nf_config"):create(true)
+local now = os.time()
+
+system_setup_ui_utils.process_apply_discard_config(nf_config)
+
+local timezones = tz_utils.ListTimeZones()
+local system_timezone = tz_utils.TimeZone()
+
+local default_custom_date
+local date_time_config = nf_config:getDateTimeConfig()
+
+if date_time_config.custom_date then
+   default_custom_date = makeTimeStamp(date_time_config.custom_date)
+end
+
+local warnings = {}
+
+if table.len(_POST) > 0 then
+   local changed = false
+
+   if not isEmptyString(_POST["ntp_sync_enabled"]) then
+      date_time_config.ntp_sync.enabled = ternary(_POST["ntp_sync_enabled"] == "1", true, false)
+      changed = true
+   end
+
+   if not isEmptyString(_POST["timezone_name"]) then
+      date_time_config.timezone = _POST["timezone_name"]
+      changed = true
+   end
+
+   if _POST["custom_date_str"] ~= _POST["custom_date_str_orig"] and _POST["ntp_sync_enabled"] == "0" then
+      date_time_config.custom_date = _POST["custom_date_str"]
+      default_custom_date = makeTimeStamp(_POST["custom_date_str"])
+      -- must save the time of the request: if one clicks apply after 10 minutes
+      -- we must add ten minutes to the date_time_config.custom_date before actually applying!
+      -- Also, always use UTC so there's no issue with timezones
+      date_time_config.custom_date_set_req = os.time(os.date("!*t", now))
+      changed = true
+   end
+
+   if changed then
+      nf_config:setDateTimeConfig(date_time_config)
+      nf_config:save()
+   end
+end
+
+local print_page_body = function()
+   local date_time_config = nf_config:getDateTimeConfig()
+
+   local timezone_keys, timezone_values = {}, {}
+   for k, v in ipairs(timezones) do
+      timezone_keys[#timezone_keys + 1] = k
+      timezone_values[#timezone_values + 1 ] = v
+   end
+
+   printPageSection(i18n("nedge.timezone"))
+   prefsDropdownFieldPrefs(i18n("nedge.timezone"), i18n("nedge.timezone_descr"), "timezone_name", timezone_values, date_time_config.timezone or system_timezone, true)
+
+   printPageSection(i18n("nedge.date_time"))
+
+   local dateTimeElementsToSwitch = {"custom_date_str",}
+
+   prefsToggleButton(subpage_active, {
+      title = i18n("nedge.ntp_sync"),
+      description = i18n("nedge.ntp_sync_descr"),
+      content = "",
+      field = "ntp_sync_enabled",
+      default = ternary(date_time_config.ntp_sync.enabled, "1", "0"),
+      to_switch = dateTimeElementsToSwitch,
+      pref = "",
+      redis_prefix = "",
+      reverse_switch = true,
+   })
+
+   local showEnabled = ternary(date_time_config.ntp_sync.enabled, false, true)
+   system_setup_ui_utils.prefsDateTimeFieldPrefs(i18n("nedge.custom_datetime"), i18n("nedge.custom_datetime_descr"), "custom_date_str",
+					      ternary(default_custom_date, default_custom_date, now), showEnabled)
+
+   printSaveButton()
+end
+
+system_setup_ui_utils.print_setup_page(print_page_body, nf_config, warnings)
+