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57 lines
1.4 KiB
Lua
57 lines
1.4 KiB
Lua
--
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-- (C) 2013-18 - 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 json = require "dkjson"
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local function send_error(error_type)
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local msg = i18n("live_traffic.error_generic")
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if error_type == "not_found" then
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msg = i18n("live_traffic.error_not_found")
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elseif error_type == "not_granted" then
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msg = i18n("live_traffic.error_not_granted")
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end
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sendHTTPContentTypeHeader('application/json')
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print(json.encode({error = msg}))
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end
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local function send_status(status_type)
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sendHTTPContentTypeHeader('application/json')
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print(json.encode({status = status_type}))
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end
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interface.select(ifname)
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local granted = true
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if not granted then
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send_error("not_granted")
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else
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local host = _GET["host"]
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local duration = tonumber(_GET["duration"])
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local bpf_filter = _GET["bpf_filter"]
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local fname = ifname
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if(host ~= nil) then
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fname = fname .. "_"..host
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end
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if((bpf_filter ~= nil) and (bpf_filter ~= "")) then
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fname = fname .. "_filtered"
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end
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fname = fname .."_live.pcap"
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if((duration == nil) or (duration < 0) or (duration > 600)) then
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duration = 60
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end
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sendHTTPContentTypeHeader('application/vnd.tcpdump.pcap', 'attachment; filename="'..fname..'"')
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interface.liveCapture(host, duration, bpf_filter)
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end
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