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--
-- (C) 2013-16 - ntop.org
--
dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
sendHTTPHeader('text/html; charset=iso-8859-1')
interface.select(ifname)
host_info = url2hostinfo(_GET)
host = interface.getHostInfo(host_info["host"],host_info["vlan"])
if(host == nil) then
print("\t[ ]\n")
else
tot = 0
_ifstats = {}
tot = 0
for id, _ in ipairs(l4_keys) do
label = l4_keys[id][1]
key = l4_keys[id][2]
traffic = 0
if(host[key..".bytes.sent"] ~= nil) then traffic = traffic + host[key..".bytes.sent"] end
if(host[key..".bytes.recv"] ~= nil) then traffic = traffic + host[key..".bytes.recv"] end
_ifstats[traffic] = label
tot = tot + traffic
end
-- Print up to this number of entries
max_num_entries = 5
-- Print entries whose value >= 5% of the total
threshold = (tot * 3) / 100
print "[\n"
num = 0
accumulate = 0
for key, value in pairsByKeys(_ifstats, rev) do
if(key < threshold) then
break
end
if(num > 0) then
print ",\n"
end
print("\t { \"label\": \"" .. value .."\", \"value\": ".. key .." }")
accumulate = accumulate + key
num = num + 1
if(num == max_num_entries) then
break
end
end
if(tot == 0) then
tot = 1
end
-- In case there is some leftover do print it as "Other"
if(accumulate < tot) then
if(num > 0) then
print (",\n")
end
print("\t { \"label\": \"Other\", \"value\": ".. (tot-accumulate) .." }")
end
print "\n]"
end
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