Add rest/v1/get/alert/severity/counters.lua REST API

scripts/lua/rest/v1/get/alert/severity/counters.lua

@@ -0,0 +1,56 @@
+--
+-- (C) 2013-20 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local json = require ("dkjson")
+local tracker = require("tracker")
+local alert_utils = require "alert_utils"
+local alert_consts = require "alert_consts"
+local rest_utils = require("rest_utils")
+
+--
+-- Read number of alerts per severity
+-- Example: curl -u admin:admin -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v1/get/alert/severity/counters.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+sendHTTPHeader('application/json')
+
+local rc = rest_utils.consts_ok
+local res = {}
+
+local ifid = _GET["ifid"]
+local what = _GET["status"] -- historical, historical-flows
+local epoch_begin = _GET["epoch_begin"]
+local epoch_end = _GET["epoch_end"]
+
+if isEmptyString(ifid) then
+   print(rest_utils.rc(rest_utils.consts_invalid_interface))
+   return
+end
+
+interface.select(ifid)
+
+if isEmptyString(what) or what == "historical" then
+   local h_by_severity = alert_utils.getNumAlertsPerSeverity("historical", epoch_begin, epoch_end)
+   for k,v in pairs(h_by_severity, asc) do
+      v.label = alert_consts.alertSeverityLabel(v.severity, true)
+   end
+   res['historical'] = h_by_severity
+end
+
+if isEmptyString(what) or what == "historical-flows" then
+   local hf_by_severity = alert_utils.getNumAlertsPerSeverity("historical-flows", epoch_begin, epoch_end)
+   for k,v in pairs(hf_by_severity, asc) do
+      v.label = alert_consts.alertSeverityLabel(v.severity, true)
+   end
+   res['historical-flows'] = hf_by_severity
+end
+
+print(rest_utils.rc(rc, res))
+