mirror of
https://github.com/ntop/ntopng.git
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140 lines
3.3 KiB
Lua
140 lines
3.3 KiB
Lua
--
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-- (C) 2019-20 - ntop.org
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--
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local rtt_utils = {}
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local ts_utils = require "ts_utils_core"
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local format_utils = require "format_utils"
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-- ##############################################
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local rtt_hosts_key = string.format("ntopng.prefs.ifid_%d.system_rtt_hosts", getSystemInterfaceId())
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-- ##############################################
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local function rtt_last_updates_key(key)
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return string.format("ntopng.cache.ifid_%d.system_rtt_hosts.last_update." .. key, getSystemInterfaceId())
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end
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-- ##############################################
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function rtt_utils.host2key(host, iptype, probetype)
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return table.concat({host, iptype, probetype}, "@")
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end
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-- ##############################################
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function rtt_utils.setLastRttUpdate(key, when, rtt, ipaddress)
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ntop.setCache(rtt_last_updates_key(key), string.format("%u@%.2f@%s", when, rtt, ipaddress))
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end
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-- ##############################################
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function rtt_utils.getLastRttUpdate(key)
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local val = ntop.getCache(rtt_last_updates_key(key))
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if(val ~= nil)then
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local parts = string.split(val, "@")
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if((parts ~= nil) and (#parts == 3)) then
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return {
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when = parts[1],
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value = parts[2],
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ip = parts[3],
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}
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end
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end
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end
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-- ##############################################
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function rtt_utils.key2label(key)
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local parts = string.split(key, "@")
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if((parts ~= nil) and (#parts == 3)) then
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-- TODO improve
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return string.format("%s [%s] (%s)", parts[1], parts[2], string.upper(parts[3]))
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end
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return key
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end
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-- ##############################################
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function rtt_utils.deserializeHost(val)
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local parts = string.split(val, "|")
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if((parts ~= nil) and (#parts == 4)) then
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local value = {
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host = parts[1],
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iptype = parts[2], -- ipv4 or ipv6
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probetype = parts[3],
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max_rtt = tonumber(parts[4]),
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}
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return value
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end
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end
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-- ##############################################
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function rtt_utils.getHostsSerialized()
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return ntop.getHashAllCache(rtt_hosts_key) or {}
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end
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-- ##############################################
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function rtt_utils.getHostSerialized(host_key)
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return ntop.getHashCache(rtt_hosts_key, host_key) or {}
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end
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-- ##############################################
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function rtt_utils.getHosts()
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local hosts = rtt_utils.getHostsSerialized()
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local rv = {}
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for host, val in pairs(hosts) do
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rv[host] = rtt_utils.deserializeHost(val)
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end
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return rv
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end
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-- ##############################################
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function rtt_utils.getHost(host_key)
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if not host_key then
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return
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end
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res = rtt_utils.getHostSerialized(host_key)
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if not isEmptyString(res) then
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return rtt_utils.deserializeHost(res)
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end
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end
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-- ##############################################
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function rtt_utils.addHost(host, value)
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ntop.setHashCache(rtt_hosts_key, host, value)
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end
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-- ##############################################
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function rtt_utils.removeHost(host)
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local alerts_api = require("alerts_api")
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local rtt_host_entity = alerts_api.pingedHostEntity(host)
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local old_ifname = ifname
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interface.select(getSystemInterfaceId())
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alerts_api.releaseEntityAlerts(rtt_host_entity)
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interface.select(old_ifname)
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ntop.delHashCache(rtt_hosts_key, host)
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end
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-- ##############################################
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return rtt_utils
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