Implements REST API endpoint to pull nProbes data

scripts/lua/rest/v2/get/interface/nprobes/data.lua

@@ -0,0 +1,72 @@
+--
+-- (C) 2013-21 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local rest_utils = require("rest_utils")
+
+--
+-- Read information about the nprobes connected to an interface
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v2/get/interfacenprobes/data.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+local rc = rest_utils.consts.success.ok
+local res = {}
+
+local ifid = _GET["ifid"]
+
+if isEmptyString(ifid) then
+   rc = rest_utils.consts.err.invalid_interface
+   rest_utils.answer(rc)
+   return
+end
+
+interface.select(ifid)
+local ifstats = interface.getStats()
+
+for k, v in pairs(ifstats.probes or {}) do
+   local nprobe_interface = i18n("if_stats_overview.remote_probe_collector_mode")
+
+   if v["remote.name"] ~= "none" then
+      nprobe_interface = string.format("%s [%s]", v["remote.name"], bitsToSize(v["remote.ifspeed"]*1000000))
+   end
+
+   local nprobe_version = v["probe.probe_version"]
+
+   if not isEmptyString(v["probe.probe_os"]) then
+      nprobe_version = string.format("%s (%s)", nprobe_version, v["probe.probe_os"])
+   end
+
+   local nprobe_probe_ip = v["probe.ip"]
+   local nprobe_probe_public_ip
+
+   if v["probe.public_ip"] ~= "" then
+      nprobe_probe_public_ip = v["probe.public_ip"]
+   end
+
+   local nprobe_edition = v["probe.probe_edition"]
+   local nprobe_license = v["probe.probe_license"] or i18n("if_stats_overview.no_license")
+   local nprobe_maintenance = v["probe.probe_maintenance"] or i18n("if_stats_overview.expired_maintenance")
+
+   local record = {
+      column_nprobe_interface = nprobe_interface,
+      column_nprobe_version = nprobe_version,
+      column_nprobe_edition = nprobe_edition,
+      column_nprobe_license = nprobe_license,
+      column_nprobe_maintenance = nprobe_maintenance,
+      column_nprobe_probe_ip = nprobe_probe_ip,
+      column_nprobe_probe_public_ip = nprobe_probe_public_ip,
+   }
+
+
+
+   res[#res + 1] = record
+end
+
+rest_utils.answer(rc, res)