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--
-- (C) 2013-22 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
local format_utils = require "format_utils"
sendHTTPContentTypeHeader('text/html')
local host_info = url2hostinfo(_GET)
local host_key = hostinfo2hostkey(host_info)
if isEmptyString(host_key) then
host_info = nil
host_key = nil
end
local function fill_ports_array(field_key, flows_stats)
local ports_array = {}
for _, value in ipairs(flows_stats) do
local p = value[field_key..".port"]
if(ports_array[p] == nil) then ports_array[p] = 0 end
ports_array[p] = ports_array[p] + value["bytes"]
end
return ports_array
end
local flows_stats = interface.getFlowsInfo(host_key) or {}
if flows_stats["flows"] then
flows_stats = flows_stats["flows"]
end
local client_ports = fill_ports_array("cli", flows_stats)
local server_ports = fill_ports_array("srv", flows_stats)
local ports
if(_GET["clisrv"] == "server") then
ports = server_ports
else
ports = client_ports
end
local _ports = { }
local tot = 0
for k, v in pairs(ports) do
_ports[k] = v
tot = tot + v
end
local threshold_percent = 5
local threshold = (tot * threshold_percent) / 100
print "[ "
local min_num = 4
local num = 0
local accumulate = 0
for key, value in pairsByValues(_ports, rev) do
if value < threshold then
break
end
if(num > 0) then
print ",\n"
end
print("\t { \"label\": \"" .. key .."\", \"value\": ".. value ..", \"url\": \""..ntop.getHttpPrefix().."/lua/flows_stats.lua?port="..key)
if host_key then
print("&host="..host_key)
end
print("\" }")
accumulate = accumulate + value
num = num + 1
end
-- In case there is some leftover do print it as "Other"
if accumulate < tot then
local other_label = i18n("other")
local url = hostinfo2detailsurl(host_info, {page = "flows"})
if(num > 0) then
print (",\n")
else
if table.len(_ports) > 0 then
other_label = i18n("num_different_ports", {num = format_utils.formatValue(table.len(_ports)), threshold = threshold_percent})
end
end
print("\t { \"label\": \""..other_label.."\", \"value\": ".. (tot - accumulate) ..", \"url\": \""..url.."\"}")
end
if tot == 0 then
print("\t { \"label\": \""..i18n("no_ports").."\", \"value\": 0 }")
end
print "\n]"
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