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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) or (host["categories"] == nil)) then
print("\t[ ]\n")
else
cat = host["categories"]
tot = 0
_cat = {}
for k,v in pairs(cat) do
_cat[v] = k
tot = tot + v
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(_cat, rev) do
if(key < threshold) then
break
end
if(num > 0) then
print ",\n"
end
print("\t { \"label\": \"" .. capitalize(getCategoryLabel(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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