Improved IEC 104 plugin

scripts/lua/modules/alert_definitions/alert_iec104_error.lua

@@ -0,0 +1,62 @@
+--
+-- (C) 2019-20 - ntop.org
+--
+
+local alert_keys   = require "alert_keys"
+local format_utils = require "format_utils"
+local json         = require("dkjson")
+
+-- #######################################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @param alert_severity A severity as defined in `alert_consts.alert_severities`
+-- @param alert_granularity A granularity as defined in `alert_consts.alerts_granularities`
+-- @param last_error A string with the lastest influxdb error
+-- @return A table with the alert built
+local function createIEC104Error(alert_severity, alert_granularity, alert_subtype, last_error)
+   local threshold_type = {
+      alert_severity = alert_severity,
+      alert_subtype = alert_subtype,
+      alert_granularity = alert_granularity,
+      alert_type_params = {
+	 error_msg = last_error
+      },
+   }
+
+   return threshold_type
+end
+
+-- #######################################################
+
+local function formatIEC104ErrorMessage(ifid, alert, status)
+   local msg = json.decode(status.error_msg)
+   local vlanId = alert.vlanId or 0
+   local client = ip2label(msg.client.ip, msg.vlanId)
+   local server = ip2label(msg.server.ip, msg.vlanId)
+
+   local rsp = format_utils.formatEpoch(msg.timestamp)..": " ..
+      "<A HREF=\""..hostinfo2detailsurl(client) .."\">".. msg.client.ip .."</A>"..
+      " <i class=\"fas fa-exchange-alt fa-lg\" aria-hidden=\"true\" data-original-title=\"\" title=\"\"></i>" ..
+      "<A HREF=\""..hostinfo2detailsurl(server) .."\">".. msg.server.ip .."</A>"..
+      " [CauseTX: "..msg.cause_tx.."][TypeId: "..msg.type_id.."][ASDU: ".. msg.asdu.."][Negative: "
+
+   if(msg.negatiive == false) then
+      rsp = rsp .. "True]"
+   else
+      rsp = rsp .. "False]"
+   end
+   
+   -- tprint(rsp)
+   
+   return(rsp)
+end
+
+-- #######################################################
+
+return {
+  alert_key = alert_keys.ntopng.alert_iec104_error,
+  i18n_title = "alerts_dashboard.iec104_error",
+  i18n_description = formatIEC104ErrorMessage,
+  icon = "fas fa-subway",
+  creator = createIEC104Error,
+}