add alert notifications

scripts/lua/handler_alert_notification.lua

@@ -0,0 +1,30 @@
+--
+-- (C) 2020 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+
+local json = require "dkjson"
+local menu_alert_notifications = require("menu_alert_notifications")
+
+sendHTTPContentTypeHeader('application/json')
+
+local response
+local action = _POST["action"] or nil
+
+-- if the action is not valid then shows an error message
+if isEmptyString(action) then
+    print(json.encode({success = false, message = "The action is not valid!"}))
+    return
+end
+
+-- otherwise handle the action
+if action == "disposed" then
+    local notification_id = _POST["notification_id"]
+    response = menu_alert_notifications.dispose_notification(notification_id)
+end
+
+print(json.encode(response))