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124 lines
2.7 KiB
Lua
124 lines
2.7 KiB
Lua
--
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-- (C) 2013-21 - ntop.org
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--
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local 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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local rest_utils = require("rest_utils")
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local stats_utils = require("stats_utils")
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--
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-- Read statistics about nDPI application protocols on an interface
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-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1", "ndpistats_mode": "count"}' http://localhost:3000/lua/rest/v2/get/interface/l7/stats.lua
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--
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-- NOTE: in case of invalid login, no error is returned but redirected to login
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--
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local rc = rest_utils.consts.success.ok
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local res = {}
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local ifid = _GET["ifid"]
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local ndpistats_mode = _GET["ndpistats_mode"]
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local breed = _GET["breed"]
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local ndpi_category = _GET["ndpi_category"]
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if isEmptyString(ifid) then
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rc = rest_utils.consts.err.invalid_interface
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rest_utils.answer(rc)
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return
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end
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local show_breed = false
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if breed == "true" then
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show_breed = true
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end
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local show_ndpi_category = false
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if ndpi_category == "true" then
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show_ndpi_category = true
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end
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interface.select(ifid)
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local ndpi_protos = interface.getnDPIProtocols()
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local function getAppUrl(app)
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if ndpi_protos[app] ~= nil then
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return ntop.getHttpPrefix().."/lua/flows_stats.lua?application="..app
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end
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return nil
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end
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local stats
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local tot = 0
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if ndpistats_mode == "sinceStartup" then
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stats = interface.getStats()
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tot = stats.stats.bytes
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elseif ndpistats_mode == "count" then
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stats = interface.getnDPIFlowsCount()
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else
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rest_utils.answer(rest_utils.consts.err.invalid_args)
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return
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end
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if stats == nil then
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rest_utils.answer(rest_utils.consts.err.internal_error)
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return
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end
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if(ndpistats_mode == "count") then
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tot = 0
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for k, v in pairs(stats) do
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tot = tot + v
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stats[k] = tonumber(v)
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end
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local threshold = (tot * 3) / 100
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local num = 0
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for k, v in pairsByValues(stats, rev) do
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if((num < 5) and (v > threshold)) then
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res[#res + 1] = {
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label = k,
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value = v,
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url = getAppUrl(k),
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}
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num = num + 1
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tot = tot - v
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else
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break
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end
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end
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if(tot > 0) then
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res[#res + 1] = {
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label = i18n("other"),
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value = tot,
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}
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elseif(num == 0) then
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res[#res + 1] = {
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label = i18n("no_flows"),
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value = 0,
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}
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end
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rest_utils.answer(rc, res)
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return
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end
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local _ifstats = computeL7Stats(stats, show_breed, show_ndpi_category)
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for key, value in pairsByValues(_ifstats, rev) do
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res[#res + 1] = {
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label = key,
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value = value,
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url = getAppUrl(key),
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}
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end
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local collapsed = stats_utils.collapse_stats(res, 1, 3 --[[ threshold ]])
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rest_utils.answer(rc, collapsed)
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