ntopng/scripts/lua/host_dns_breakdown.lua
2021-01-02 12:08:23 +01:00

106 lines
3.7 KiB
Lua

--
-- (C) 2013-21 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
sendHTTPContentTypeHeader('text/html')
local host_info = url2hostinfo(_GET)
mode = _GET["direction"]
local what = "rcvd"
if mode == "sent" then
what = "sent"
end
local host = interface.getHostInfo(host_info["host"],host_info["vlan"])
local tot = 0
local left = 0
print "[\n"
if(host ~= nil) then
if(host["dns"][what]["queries"] ~= nil) then
tot = host["dns"][what]["queries"]["num_a"] + host["dns"][what]["queries"]["num_ns"] + host["dns"][what]["queries"]["num_cname"] + host["dns"][what]["queries"]["num_soa"] + host["dns"][what]["queries"]["num_ptr"] + host["dns"][what]["queries"]["num_mx"] + host["dns"][what]["queries"]["num_txt"] + host["dns"][what]["queries"]["num_aaaa"] + host["dns"][what]["queries"]["num_any"] + host["dns"][what]["queries"]["num_other"]
else
tot = 0
end
if(tot > 0) then
local min = 0 -- Show all the queries, they are just a buch and fit well in the pie chart
local comma = ""
if(host["dns"][what]["queries"]["num_a"] > min) then
print('\t { "label": "A", "value": '.. host["dns"][what]["queries"]["num_a"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_a"]
end
if(host["dns"][what]["queries"]["num_ns"] > min) then
print(comma..'\t { "label": "NS", "value": '.. host["dns"][what]["queries"]["num_ns"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_ns"]
end
if(host["dns"][what]["queries"]["num_cname"] > min) then
print(comma..'\t { "label": "CNAME", "value": '.. host["dns"][what]["queries"]["num_cname"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_cname"]
end
if(host["dns"][what]["queries"]["num_soa"] > min) then
print(comma..'\t { "label": "SOA", "value": '.. host["dns"][what]["queries"]["num_soa"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_soa"]
end
if(host["dns"][what]["queries"]["num_ptr"] > min) then
print(comma..'\t { "label": "PTR", "value": '.. host["dns"][what]["queries"]["num_ptr"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_ptr"]
end
if(host["dns"][what]["queries"]["num_mx"] > min) then
print(comma..'\t { "label": "MX", "value": '.. host["dns"][what]["queries"]["num_mx"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_mx"]
end
if(host["dns"][what]["queries"]["num_txt"] > min) then
print(comma..'\t { "label": "TXT", "value": '.. host["dns"][what]["queries"]["num_txt"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_txt"]
end
if(host["dns"][what]["queries"]["num_aaaa"] > min) then
print(comma..'\t { "label": "AAAA", "value": '.. host["dns"][what]["queries"]["num_aaaa"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_aaaa"]
end
if(host["dns"][what]["queries"]["num_any"] > min) then
print(comma..'\t { "label": "ANY", "value": '.. host["dns"][what]["queries"]["num_any"] .. '}\n')
comma = ","
else
left = left + host["dns"][what]["queries"]["num_any"]
end
local other = host["dns"][what]["queries"]["num_other"] + left
if(other > 0) then print(comma..'\t { "label": "Other", "value": '.. other .. '}\n')
end
end
end
print "\n]"