Added REST API call rest/v2/get/host/no_tx_peers.lua

for listing RX-only hosts (i.e. those with no TX traffic)

scripts/lua/rest/v2/get/host/no_tx_peers.lua

@@ -0,0 +1,40 @@
+--
+-- (C) 2013-23 - 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 RX-only hosts (i.e. hosts that have received traffic but not tranmitted anything)
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "0"}' http://localhost:3000/lua/rest/v2/get/host/no_tx_peers
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+if not isAdministratorOrPrintErr() then
+   rest_utils.answer(rest_utils.consts.err.not_granted)
+   return
+end
+
+-- =============================
+
+local ifid = _GET["ifid"]
+interface.select(ifid)
+
+local rsp = {}
+
+rsp.rx_only = {}
+
+rsp.rx_only.local_hosts = {}
+rsp.rx_only.local_hosts.hosts_with_ports_count  = interface.getRxOnlyHostsList(true, false)
+rsp.rx_only.local_hosts.host_peers              = interface.getRxOnlyHostsList(true, true)
+
+rsp.rx_only.remote_hosts = {}
+rsp.rx_only.remote_hosts.hosts_with_ports_count = interface.getRxOnlyHostsList(false, false)
+rsp.rx_only.remote_hosts.host_peers             = interface.getRxOnlyHostsList(false, true)
+
+rest_utils.answer(rest_utils.consts.success.ok, rsp)