Updated host details l7 page (#6803)

scripts/lua/rest/v2/get/host/l7/cat_data.lua

@@ -0,0 +1,38 @@
+--
+-- (C) 2013-22 - ntop.org
+--
+
+dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+-- Imports
+require "lua_utils"
+local rest_utils = require "rest_utils"
+local graph_utils = require "graph_utils"
+
+-- Local variables
+local host_ip = _GET["host"]
+local vlan = _GET["vlan"]
+local host_stats = interface.getHostInfo(host_ip, vlan) or {}
+local max_data = 10
+local current_data = 0
+local rsp = {
+  labels = {},
+  series = {},
+  colors = {},
+}
+
+local ifstats = computeL7Stats(host_stats, false --[[ show breed ]], true --[[ show ndpi category ]])
+
+for key, value in pairsByValues(ifstats, rev) do
+  current_data = current_data + 1
+  rsp["labels"][#rsp["labels"] + 1] = key
+  rsp["series"][#rsp["series"] + 1] = value
+  rsp["colors"][#rsp["colors"] + 1] = graph_utils.get_html_color(interface.getnDPICategoryId(key))
+
+  if current_data >= max_data then
+    break
+  end
+end
+
+rest_utils.answer(rest_utils.consts.success.ok, rsp)