Add nEdge Policy Violation check

scripts/lua/modules/alert_definitions/flow/alert_nedge_policy_violation.lua

@@ -0,0 +1,47 @@
+--
+-- (C) 2019-24 - ntop.org
+--
+
+-- ##############################################
+
+local flow_alert_keys = require "flow_alert_keys"
+-- Import the classes library.
+local classes = require "classes"
+-- Make sure to import the Superclass!
+local alert = require "alert"
+
+-- ##############################################
+
+local alert_nedge_policy_violation = classes.class(alert)
+
+-- ##############################################
+
+alert_nedge_policy_violation.meta = {
+   alert_key = flow_alert_keys.flow_alert_nedge_policy_violation,
+   i18n_title = "flow_details.policy_violation",
+   icon = "fas fa-fw fa-exclamation",
+}
+
+-- ##############################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @return A table with the alert built
+function alert_nedge_policy_violation:init()
+   -- Call the parent constructor
+   self.super:init()
+end
+
+-- #######################################################
+
+-- @brief Format an alert into a human-readable string
+-- @param ifid The integer interface id of the generated alert
+-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
+-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
+-- @return A human-readable string
+function alert_nedge_policy_violation.format(ifid, alert, alert_type_params)
+   return i18n("flow_details.policy_violation")
+end
+
+-- #######################################################
+
+return alert_nedge_policy_violation