Added custom notes to host config (Issue #5619)

scripts/lua/rest/v2/set/host/notes.lua

@@ -0,0 +1,42 @@
+--
+-- (C) 2013-21 - 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 rest_utils = require("rest_utils")
+
+--
+-- Set host alias
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"host" : "192.168.1.1", "custom_notes" : "macbook in conference room"}' http://localhost:3000/lua/rest/v2/set/host/alias.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 host_info = url2hostinfo(_POST)
+local custom_notes = _POST["custom_notes"]
+
+if not isAdministratorOrPrintErr() then
+   rest_utils.answer(rest_utils.consts.err.not_granted)
+   return
+end
+
+if host_info == nil or isEmptyString(host_info["host"]) or custom_notes == nil then
+   rest_utils.answer(rest_utils.consts.err.invalid_args)
+   return
+end
+
+setHostNotes(host_info["host"], custom_notes)
+
+-- TRACKER HOOK
+tracker.log('set_host_notes', { host = hostinfo2hostkey(host_info), custom_notes = custom_notes })
+
+rest_utils.answer(rc, res)
+