mirror of
https://github.com/ntop/ntopng.git
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131 lines
4.2 KiB
Lua
131 lines
4.2 KiB
Lua
--
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-- (C) 2013-22 - 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 tracker = require("tracker")
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local rest_utils = require("rest_utils")
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--
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-- Read information about a host
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-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1", "host" : "192.168.1.1"}' http://localhost:3000/lua/rest/v2/get/host/data.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 host_info = url2hostinfo(_GET)
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-- whether to return host statistics: on by default
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local host_stats = _GET["host_stats"]
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-- whether to return statistics regarding host flows: off by default
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local host_stats_flows = _GET["host_stats_flows"]
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local host_stats_flows_num = _GET["limit"]
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if isEmptyString(ifid) then
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rest_utils.answer(rest_utils.consts.err.invalid_interface)
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return
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end
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if isEmptyString(host_info["host"]) then
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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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interface.select(ifid)
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local host = interface.getHostInfo(host_info["host"], host_info["vlan"])
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if not host then
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rest_utils.answer(rest_utils.consts.err.not_found)
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return
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end
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local function flows2protocolthpt(flows)
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local protocol_thpt = {}
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for _, flow in pairs(flows) do
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local proto_ndpi = ""
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if flow["proto.ndpi"] == nil or flow["proto.ndpi"] == "" then
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goto continue
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else
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proto_ndpi = flow["proto.ndpi"]
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end
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if protocol_thpt[proto_ndpi] == nil then
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protocol_thpt[proto_ndpi] =
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{["cli2srv"]={["throughput_bps"]=0, ["throughput_pps"]=0},
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["srv2cli"]={["throughput_bps"]=0, ["throughput_pps"]=0}}
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end
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for _, dir in pairs({"cli2srv", "srv2cli"}) do
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for _, dim in pairs({"bps", "pps"}) do
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protocol_thpt[proto_ndpi][dir]["throughput_"..dim] =
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protocol_thpt[proto_ndpi][dir]["throughput_"..dim] + flow[dir..".throughput_"..dim]
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end
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end
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::continue::
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end
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return protocol_thpt
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end
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-- hosts stats are on by default, one must explicitly disable them
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if not (host_stats == nil or host_stats == "" or host_stats == "true" or host_stats == "1") then
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host = {}
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end
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-- host flow stats are off by default and must be explicitly enabled
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if host_stats_flows ~= nil and host_stats_flows ~= "" then
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if host_stats_flows_num == nil or tonumber(host_stats_flows_num) == nil then
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-- default: do not limit the number of flows
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host_stats_flows_num = 99999
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else
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-- ... unless otherwise specified
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host_stats_flows_num = tonumber(host_stats_flows_num)
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end
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local total = 0
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local pageinfo = {["sortColumn"]="column_bytes", ["a2zSortOrder"]=false,
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["maxHits"]=host_stats_flows_num, ["toSkip"]=0, ["detailedResults"]=true}
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--local flows = interface.getFlowsInfo(host_info["host"], nil, "column_bytes", host_stats_flows_num, 0, false)
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local flows = interface.getFlowsInfo(host_info["host"], pageinfo)
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flows = flows["flows"]
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for i, fl in ipairs(flows) do
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flows[i] = {
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["srv.ip"] = fl["srv.ip"], ["cli.ip"] = fl["cli.ip"],
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["srv.port"] = fl["srv.port"], ["cli.port"] = fl["cli.port"],
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["proto.ndpi_id"] = fl["proto.ndpi_id"], ["proto.ndpi"] = fl["proto.ndpi"],
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["bytes"] = fl["bytes"],
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["cli2srv.throughput_bps"] = round(fl["throughput_cli2srv_bps"], 2),
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["srv2cli.throughput_bps"] = round(fl["throughput_srv2cli_bps"], 2),
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["cli2srv.throughput_pps"] = round(fl["throughput_cli2srv_pps"], 2),
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["srv2cli.throughput_pps"] = round(fl["throughput_srv2cli_pps"], 2),
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}
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if fl["proto.l4"] == "TCP" then
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flows[i]["cli2srv.tcp_flags"] = TCPFlags2table(fl["cli2srv.tcp_flags"])
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flows[i]["srv2cli.tcp_flags"] = TCPFlags2table(fl["srv2cli.tcp_flags"])
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flows[i]["tcp_established"] = fl["tcp_established"]
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end
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end
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host["ndpiThroughputStats"] = flows2protocolthpt(flows)
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host["flows"] = flows
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host["flows_count"] = total
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end
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res = host
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tracker.log("host_get_json", {host_info["host"], host_info["vlan"]})
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rest_utils.answer(rc, res)
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