mirror of
https://github.com/ntop/ntopng.git
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86ab3f0585
This commit adds a Lua interface that allows Lua scripts to directly query flows with a simple SQL-like statement. This also enforces the checks and data conversions in the iface_ports_list.lua script.
99 lines
2.2 KiB
Lua
99 lines
2.2 KiB
Lua
--
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-- (C) 2013-15 - ntop.org
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--
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dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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require "lua_utils"
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sendHTTPHeader('text/html; charset=iso-8859-1')
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interface.select(ifname)
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host = _GET["host"]
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client_ports = nil
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server_ports = nil
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function fill_ports_array(field_key, flows_stats, host)
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local ports_array = {}
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for key, value in pairs(flows_stats) do
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if ((host == nil) or (flows_stats[key][field_key..".ip"] == host)) then
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p = flows_stats[key][field_key..".port"]
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if(ports_array[p] == nil) then ports_array[p] = 0 end
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ports_array[p] = ports_array[p] + flows_stats[key]["bytes"]
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end
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end
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return ports_array
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end
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if (host == nil) then
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flows_stats = interface.queryFlowsInfo("SELECT PORTS FROM FLOWS")
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else
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host_table = hostkey2hostinfo(host)
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host = host_table["host"]
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vlan = host_table["vlan"] or 0
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flows_stats = interface.queryFlowsInfo("SELECT PORTS FROM FLOWS WHERE host = "..host.." AND vlan = "..tostring(vlan))
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end
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client_ports = fill_ports_array("cli", flows_stats, host)
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server_ports = fill_ports_array("srv", flows_stats, host)
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if(_GET["mode"] == "server") then
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ports = server_ports
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else
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ports = client_ports
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end
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_ports = { }
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tot = 0
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for k,v in pairs(ports) do
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_ports[v] = k
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tot = tot + v
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end
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threshold = (tot * 5) / 100
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print "[ "
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num = 0
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accumulate = 0
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for key, value in pairsByKeys(_ports, rev) do
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if(key < threshold) then
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break
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end
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if(num > 0) then
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print ",\n"
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end
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print("\t { \"label\": \"" .. value .."\", \"value\": ".. key ..", \"url\": \""..ntop.getHttpPrefix().."/lua/port_details.lua?port="..value)
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if(host ~= nil) then
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print("&host="..host)
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end
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print("\" }")
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accumulate = accumulate + key
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num = num + 1
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if(num == max_num_entries) then
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break
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end
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end
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-- In case there is some leftover do print it as "Other"
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if(accumulate < tot) then
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if(num > 0) then
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print (",\n")
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end
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print("\t { \"label\": \"Other\", \"value\": ".. (tot-accumulate) .." }")
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end
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if(tot == 0) then
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print("\t { \"label\": \"Other\", \"value\": ".. 0 .." }")
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end
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print "\n]"
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