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--
-- (C) 2013-16 - ntop.org
--
dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "top_talkers"
require "json"
local top_asn_intf = {}
if (ntop.isPro()) then
package.path = dirs.installdir .. "/pro/scripts/lua/modules/top_scripts/?.lua;" .. package.path
local new = require("top_aggregate")
if (type(new) ~= "table") then new = {} end
-- Add pro methods to local method table
for k,v in pairs(new) do
top_asn_intf[k] = v
end
end
local function getTopAS(ifid, ifname)
return getCurrentTopGroupsSeparated(ifid, ifname, 10, true, false,
nil, nil, top_asn_intf.key,
top_asn_intf.JSONkey, nil, true, nil, top_asn_intf.uniqueKey)
end
local function getTopASBy(ifid, ifname, filter_col, filter_val)
return getCurrentTopGroupsSeparated(ifid, ifname, 10, true, false,
filter_col, filter_val, top_asn_intf.key,
top_asn_intf.JSONkey, nil, true, nil, top_asn_intf.uniqueKey)
end
local function getTopASClean(ifid, ifname, param)
top = getCurrentTopGroups(ifid, ifname, 5, false, false,
nil, nil, top_asn_intf.key,
top_asn_intf.JSONkey, true, param, top_asn_intf.uniqueKey)
section_beginning = string.find(top, '%[')
if (section_beginning == nil) then
return("[ ]\n")
else
return(string.sub(top, section_beginning))
end
end
local function topASSectionInTableOP(tblarray, arithOp)
local ret = {}
local outer_cnt = 1
local num_glob = 1
for _,tbl in pairs(tblarray) do
for _,outer in pairs(tbl) do
if (ret[outer_cnt] == nil) then ret[outer_cnt] = {} end
for key, value in pairs(outer) do
for _,record in pairs(value) do
local found = false
if (ret[outer_cnt][key] == nil) then ret[outer_cnt][key] = {} end
for _,el in pairs(ret[outer_cnt][key]) do
if (found == false and el["address"] == record["address"]) then
el["value"] = arithOp(el["value"], record["value"])
found = true
end
end
if (found == false) then
ret[outer_cnt][key][num_glob] = record
num_glob = num_glob + 1
end
end
end
end
end
return ret
end
local function printTopASTable(tbl)
local rsp = "{\n"
for i,v in pairs(tbl) do
local outouterlooped = 0
for dk,dv in pairs(v) do
rsp = rsp..'"'..dk..'": [\n'
local keys = getKeys(dv, "value")
local outerlooped = 0
for tv,tk in pairsByKeys(keys, rev) do
rv = dv[tk]
rsp = rsp.."{ "
local looped = 0
for k,v in pairs(rv) do
rsp = rsp..'"'..k..'": '
if (k == "value") then
rsp = rsp..tostring(v)
else
rsp = rsp..'"'..v..'"'
end
rsp = rsp..", "
looped = looped + 1
end
if (looped > 0) then
rsp = string.sub(rsp, 1, -3)
end
rsp = rsp.."},\n"
outerlooped = outerlooped + 1
end
if (outerlooped > 0) then
rsp = string.sub(rsp, 1, -3)
end
rsp = rsp.."],\n"
outouterlooped = outouterlooped + 1
end
if (outouterlooped > 0) then
rsp= string.sub(rsp, 1, -3)
end
end
rsp = rsp.."\n}"
return rsp
end
local function getTopASFromJSONDirection(table, wantedDir, add_vlan)
local elements = ""
-- For each VLAN, get ASs and concatenate them
for i,vlan in pairs(table["vlan"]) do
local vlanid = vlan["label"]
local vlanname = vlan["name"]
-- XXX asn is an array of (senders, receivers) pairs?
for i2,asnpair in pairs(vlan[top_asn_intf.JSONkey]) do
-- asnpair is { "senders": [...], "receivers": [...] }
for k2,direction in pairs(asnpair) do
-- direction is "senders": [...] or "receivers": [...]
if (k2 ~= wantedDir) then goto continue end
-- scan ASs
for i2,asn in pairs(direction) do
-- asn is { "label": ..., "value": ..., "url": ... }
elements = elements.."{ "
local n_el = 0
for k3,v3 in pairs(asn) do
elements = elements..'"'..k3..'": '
if (k3 == "value") then
elements = elements..tostring(v3)
else
elements = elements..'"'..v3..'"'
end
elements = elements..", "
n_el = n_el + 1
end
if (add_vlan ~= nil) then
elements = elements..'"vlanm": "'..vlanname..'", '
elements = elements..'"vlan": "'..vlanid..'", '
end
if (n_el ~= 0) then
elements = string.sub(elements, 1, -3)
end
elements = elements.." },\n"
end
::continue::
end
end
end
return elements
end
local function printTopASFromTable(table, add_vlan)
if (table == nil or table["vlan"] == nil) then return "[ ]\n" end
local elements = "{\n"
elements = elements..'"senders": [\n'
local result = getTopASFromJSONDirection(table, "senders", add_vlan)
if (result ~= "") then
result = string.sub(result, 1, -3) --remove comma
end
elements = elements..result
elements = elements.."],\n"
elements = elements..'"receivers": [\n'
result = getTopASFromJSONDirection(table, "receivers", add_vlan)
if (result ~= "") then
result = string.sub(result, 1, -3) --remove comma
end
elements = elements..result
elements = elements.."]\n"
elements = elements.."}\n"
return elements
end
local function getTopASFromJSON(content, add_vlan)
if(content == nil) then return("[ ]\n") end
local table = parseJSON(content)
local rsp = printTopASFromTable(table, add_vlan)
if (rsp == nil or rsp == "") then return "[ ]\n" end
return rsp
end
local function getHistoricalTopAS(ifid, ifname, epoch, add_vlan)
if (epoch == nil) then
return("[ ]\n")
end
return getTopASFromJSON(ntop.getMinuteSampling(ifid, tonumber(epoch)), add_vlan)
end
top_asn_intf.name = "ASN"
top_asn_intf.infoScript = "hosts_stats.lua"
top_asn_intf.infoScriptKey = "asn"
top_asn_intf.key = "asn"
top_asn_intf.JSONkey = "asn"
top_asn_intf.uniqueKey = "top_asn"
top_asn_intf.getTop = getTopAS
top_asn_intf.getTopBy = getTopASBy
top_asn_intf.getTopClean = getTopASClean
top_asn_intf.getTopFromJSON = getTopASFromJSON
top_asn_intf.printTopTable = printTopASTable
top_asn_intf.getHistoricalTop = getHistoricalTopAS
top_asn_intf.topSectionInTableOp = topASSectionInTableOP
top_asn_intf.numLevels = 2
return top_asn_intf
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