mirror of
https://github.com/ntop/ntopng.git
synced 2026-04-29 07:29:32 +00:00
1850 lines
62 KiB
Lua
1850 lines
62 KiB
Lua
--
|
|
-- (C) 2014-17 - ntop.org
|
|
--
|
|
|
|
-- This file contains the description of all functions
|
|
-- used to trigger host alerts
|
|
|
|
local verbose = false
|
|
local callback_utils = require "callback_utils"
|
|
|
|
alerts_granularity = {
|
|
{ "min", "Every Minute", 60 },
|
|
{ "5mins", "Every 5 Minutes", 300 },
|
|
{ "hour", "Hourly", 3600 },
|
|
{ "day", "Daily", 86400 }
|
|
}
|
|
|
|
alarmable_metrics = {'bytes', 'dns', 'active', 'idle', 'packets', 'p2p', 'throughput', 'ingress', 'egress', 'inner'}
|
|
|
|
-- ##############################################################################
|
|
|
|
function bytes(old, new, interval)
|
|
-- io.write(debug.traceback().."\n")
|
|
if(verbose) then print("bytes("..interval..")") end
|
|
|
|
if(new["sent"] ~= nil) then
|
|
-- Host
|
|
return((new["sent"]["bytes"]+new["rcvd"]["bytes"])-(old["sent"]["bytes"]+old["rcvd"]["bytes"]))
|
|
else
|
|
-- Interface
|
|
return(new.stats.bytes - old.stats.bytes)
|
|
end
|
|
end
|
|
|
|
function packets(old, new, interval)
|
|
if(verbose) then print("packets("..interval..")") end
|
|
if(new["sent"] ~= nil) then
|
|
-- Host
|
|
return((new["sent"]["packets"]+new["rcvd"]["packets"])-(old["sent"]["packets"]+old["rcvd"]["packets"]))
|
|
else
|
|
-- Interface
|
|
return(new.stats.packets - old.stats.packets)
|
|
end
|
|
end
|
|
|
|
function active(old, new, interval)
|
|
if(verbose) then print("active("..interval..")") end
|
|
local diff = new["duration"] - old["duration"]
|
|
return(diff)
|
|
end
|
|
|
|
function idle(old, new, interval)
|
|
if(verbose) then print("idle("..interval..")") end
|
|
local diff = os.time()-new["seen.last"]
|
|
return(diff)
|
|
end
|
|
|
|
function dns(old, new, interval)
|
|
if(verbose) then print("dns("..interval..")") end
|
|
return(proto_bytes(old, new, "DNS"))
|
|
end
|
|
|
|
function p2p(old, new, interval)
|
|
if(verbose) then print("p2p("..interval..")") end
|
|
return(proto_bytes(old, new, "eDonkey")+proto_bytes(old, new, "BitTorrent")+proto_bytes(old, new, "Skype"))
|
|
end
|
|
|
|
function throughput(old, new, interval)
|
|
if(verbose) then print("throughput("..interval..")") end
|
|
|
|
return((bytes(old, new, interval) * 8)/ (interval*1000000))
|
|
end
|
|
|
|
-- ##############################################################################
|
|
|
|
if ntop.isEnterprise() then
|
|
local dirs = ntop.getDirs()
|
|
package.path = dirs.installdir .. "/pro/scripts/lua/enterprise/modules/?.lua;" .. package.path
|
|
require "enterprise_alert_utils"
|
|
end
|
|
|
|
j = require("dkjson")
|
|
require "persistence"
|
|
|
|
function is_allowed_timespan(timespan)
|
|
for _, granularity in pairs(alerts_granularity) do
|
|
granularity = granularity[1]
|
|
if timespan == granularity then
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
function is_allowed_alarmable_metric(metric)
|
|
for _, allowed_metric in pairs(alarmable_metrics) do
|
|
if metric == allowed_metric then
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
function get_alerts_hash_name(timespan, ifname)
|
|
local ifid = getInterfaceId(ifname)
|
|
if not is_allowed_timespan(timespan) or tonumber(ifid) == nil then
|
|
return nil
|
|
end
|
|
return "ntopng.prefs.alerts_"..timespan..".ifid_"..tostring(ifid)
|
|
end
|
|
|
|
function get_housekeeping_set_name(ifId)
|
|
return "ntopng.alerts.ifid_"..ifId..".make_room"
|
|
end
|
|
|
|
function ndpival_bytes(json, protoname)
|
|
key = "ndpiStats"
|
|
|
|
-- Host
|
|
if((json[key] == nil) or (json[key][protoname] == nil)) then
|
|
if(verbose) then print("## ("..protoname..") Empty<br>\n") end
|
|
return(0)
|
|
else
|
|
local v = json[key][protoname]["bytes"]["sent"]+json[key][protoname]["bytes"]["rcvd"]
|
|
if(verbose) then print("## ("..protoname..") "..v.."<br>\n") end
|
|
return(v)
|
|
end
|
|
end
|
|
|
|
function proto_bytes(old, new, protoname)
|
|
return(ndpival_bytes(new, protoname)-ndpival_bytes(old, protoname))
|
|
end
|
|
-- =====================================================
|
|
|
|
function get_alerts_suppressed_hash_name(ifname)
|
|
local hash_name = "ntopng.prefs.alerts.ifid_"..tostring(getInterfaceId(ifname))
|
|
return hash_name
|
|
end
|
|
|
|
function are_alerts_suppressed(observed, ifname)
|
|
local suppressAlerts = ntop.getHashCache(get_alerts_suppressed_hash_name(ifname), observed)
|
|
--[[
|
|
tprint("are_alerts_suppressed ".. suppressAlerts)
|
|
tprint("are_alerts_suppressed observed: ".. observed)
|
|
tprint("are_alerts_suppressed ifname: "..ifname)
|
|
--]]
|
|
if((suppressAlerts == "") or (suppressAlerts == nil) or (suppressAlerts == "true")) then
|
|
return false -- alerts are not suppressed
|
|
else
|
|
if(verbose) then print("Skipping alert check for("..address.."): disabled in preferences<br>\n") end
|
|
return true -- alerts are suppressed
|
|
end
|
|
end
|
|
|
|
-- #################################################################
|
|
|
|
function delete_alert_configuration(alert_source, ifname)
|
|
local ifid = getInterfaceId(ifname)
|
|
local alert_level = 2 -- alert_level_error
|
|
local alert_type = 2 -- alert_threshold_exceeded
|
|
local is_host = false
|
|
|
|
for k1,timespan in pairs(alerts_granularity) do
|
|
timespan = timespan[1]
|
|
local key = get_alerts_hash_name(timespan, ifname)
|
|
local alarms = ntop.getHashCache(key, alert_source)
|
|
if alarms ~= "" then
|
|
for k1, metric in pairs(alarmable_metrics) do
|
|
if ntop.isPro() then
|
|
ntop.withdrawNagiosAlert(alert_source, timespan, metric, "OK, alarm deactivated")
|
|
end
|
|
-- check if we are processing a pair ip-vlan such as 192.168.1.0@0
|
|
if string.match(alert_source, "@") then
|
|
interface.releaseHostAlert(alert_source, timespan.."_"..metric, alert_type, alert_level, "Alarm released.")
|
|
is_host = true
|
|
-- check if this is a subnet
|
|
elseif string.match(alert_source, "/") then
|
|
interface.releaseNetworkAlert(alert_source, timespan.."_"..metric, alert_type, alert_level, "Alarm released.")
|
|
-- finally assume it's an interface alert
|
|
else
|
|
interface.releaseInterfaceAlert(timespan.."_"..metric, alert_type, alert_level, "Alarm released.")
|
|
end
|
|
end
|
|
ntop.delHashCache(key, alert_source)
|
|
end
|
|
end
|
|
|
|
if is_host == true then
|
|
interface.refreshNumAlerts(alert_source)
|
|
end
|
|
interface.refreshNumAlerts()
|
|
end
|
|
|
|
function refresh_alert_configuration(alert_source, ifname, timespan, alerts_string)
|
|
if tostring(alerts_string) == nil then return nil end
|
|
if is_allowed_timespan(timespan) == false then return nil end
|
|
local ifid = getInterfaceId(ifname)
|
|
local alert_level = 2 -- alert_level_error
|
|
local alert_type = 2 -- alert_threshold_exceeded
|
|
local is_host = false
|
|
-- check if we are processing a pair ip-vlan such as 192.168.1.0@0
|
|
|
|
local new_alert_ids = {}
|
|
|
|
-- alerts_string is a string such as dns;gt;23,bytes;gt;1,p2p;gt;3
|
|
-- that string comes directly from the web interface and is a comma-separated
|
|
-- list of threshold alerts configured.
|
|
-- since formerly configured alerts may have been deleted, we need to check
|
|
-- the ongoing_alerts against alerts_string and move to the closed list
|
|
-- any ongoing alert that is no longer part of the alerts_string
|
|
local tokens = split(alerts_string, ",")
|
|
if tokens == nil then tokens = {} end
|
|
for _, s in pairs(tokens) do
|
|
if tostring(s) == nil then goto continue end
|
|
local metric = string.split(s, ";")--[1]
|
|
if metric == nil or metric[1] == nil then goto continue end
|
|
metric = metric[1]
|
|
|
|
if is_allowed_alarmable_metric(metric) == true then
|
|
new_alert_ids[timespan.."_"..metric] = true
|
|
end
|
|
::continue::
|
|
end
|
|
|
|
-- check if there are some ongoing alerts that no longer exist in new_alerts
|
|
-- we want to close those alerts
|
|
for k1, timespan in pairs(alerts_granularity) do
|
|
timespan = timespan[1]
|
|
for k2, metric in pairs(alarmable_metrics) do
|
|
if new_alert_ids[timespan.."_"..metric] ~= true then
|
|
if string.match(alert_source, "@") then
|
|
interface.releaseHostAlert(alert_source, timespan.."_"..metric, alert_type, alert_level, "released.")
|
|
is_host = true
|
|
elseif string.match(alert_source, "/") then
|
|
interface.releaseNetworkAlert(alert_source, timespan.."_"..metric, alert_type, alert_level, "released.")
|
|
else
|
|
interface.releaseInterfaceAlert(timespan.."_"..metric, alert_type, alert_level, "Alarm released.")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
if is_host == true then
|
|
interface.refreshNumAlerts(alert_source)
|
|
end
|
|
interface.refreshNumAlerts()
|
|
end
|
|
|
|
function check_host_alert(ifname, hostname, mode, key, old_json, new_json)
|
|
if(verbose) then
|
|
print("check_host_alert("..ifname..", "..hostname..", "..mode..", "..key..")<br>\n")
|
|
|
|
print("<p>--------------------------------------------<p>\n")
|
|
print("NEW<br>"..new_json.."<br>\n")
|
|
print("<p>--------------------------------------------<p>\n")
|
|
print("OLD<br>"..old_json.."<br>\n")
|
|
print("<p>--------------------------------------------<p>\n")
|
|
end
|
|
|
|
local alert_level = 2 -- alert_level_error
|
|
local alert_type = 2 -- alert_threshold_exceeded
|
|
local alert_status -- to be set later
|
|
|
|
old = j.decode(old_json, 1, nil)
|
|
new = j.decode(new_json, 1, nil)
|
|
|
|
-- str = "bytes;>;123,packets;>;12"
|
|
hkey = get_alerts_hash_name(mode, ifname)
|
|
str = ntop.getHashCache(hkey, hostname)
|
|
duration = granularity2sec(mode)
|
|
|
|
-- if(verbose) then ("--"..hkey.."="..str.."--<br>") end
|
|
if((str ~= nil) and (str ~= "")) then
|
|
tokens = split(str, ",")
|
|
|
|
for _,s in pairs(tokens) do
|
|
-- if(verbose) then ("<b>"..s.."</b><br>\n") end
|
|
t = string.split(s, ";")
|
|
|
|
if(t[2] == "gt") then
|
|
op = ">"
|
|
else
|
|
if(t[2] == "lt") then
|
|
op = "<"
|
|
else
|
|
op = "=="
|
|
end
|
|
end
|
|
|
|
-- This is where magic happens: loadstring() evaluates the string
|
|
local what = "val = "..t[1].."(old, new, duration); if(val ".. op .. " " .. t[3] .. ") then return(true) else return(false) end"
|
|
local f = loadstring(what)
|
|
local rc = f()
|
|
local alert_id = mode.."_"..t[1] -- the alert identifies is the concat. of time granularity and condition, e.g., min_bytes
|
|
|
|
if(rc) then
|
|
alert_status = 1 -- alert on
|
|
local alert_msg = "Threshold <b>"..t[1].."</b> crossed by host <A HREF='"..ntop.getHttpPrefix().."/lua/host_details.lua?host="..key.."'>"..key:gsub("@0","").."</A> [".. val .." ".. op .. " " .. t[3].."]"
|
|
|
|
if verbose then io.write("queuing alert\n") end
|
|
interface.engageHostAlert(key, alert_id, alert_type, alert_level, alert_msg)
|
|
if ntop.isPro() then
|
|
-- possibly send the alert to nagios as well
|
|
ntop.sendNagiosAlert(string.gsub(key, "@0", ""), --[[ vlan 0 is implicit for hosts --]]
|
|
mode, t[1], alert_msg)
|
|
end
|
|
if(verbose) then print("<font color=red>".. alert_msg .."</font><br>\n") end
|
|
else -- alert has not been triggered
|
|
alert_status = 2 -- alert off
|
|
if(verbose) then print("<p><font color=green><b>Threshold "..t[1].."@"..key.." not crossed</b> [value="..val.."]["..op.." "..t[3].."]</font><p>\n") end
|
|
interface.releaseHostAlert(key, alert_id, alert_type, alert_level, "released!")
|
|
if ntop.isPro() then
|
|
ntop.withdrawNagiosAlert(string.gsub(key, "@0", "") --[[ vlan 0 is implicit for hosts --]],
|
|
mode, t[1], "service OK")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
function check_network_alert(ifname, network_name, mode, key, old_table, new_table)
|
|
if(verbose) then
|
|
io.write("check_network_alert("..ifname..", "..network_name..", "..mode..", "..key..")\n")
|
|
io.write("new:\n")
|
|
tprint(new_table)
|
|
io.write("old:\n")
|
|
tprint(old_table)
|
|
end
|
|
|
|
local alert_level = 2 -- alert_level_error
|
|
local alert_status = 1 -- alert_on
|
|
local alert_type = 2 -- alert_threshold_exceeded
|
|
|
|
deltas = {}
|
|
local delta_names = {'ingress', 'egress', 'inner'}
|
|
for i = 1, 3 do
|
|
local delta_name = delta_names[i]
|
|
deltas[delta_name] = 0
|
|
if old_table[delta_name] and new_table[delta_name] then
|
|
deltas[delta_name] = new_table[delta_name] - old_table[delta_name]
|
|
end
|
|
end
|
|
-- str = "bytes;>;123,packets;>;12"
|
|
hkey = get_alerts_hash_name(mode, ifname)
|
|
|
|
local str = ntop.getHashCache(hkey, network_name)
|
|
|
|
-- if(verbose) then ("--"..hkey.."="..str.."--<br>") end
|
|
if((str ~= nil) and (str ~= "")) then
|
|
local tokens = split(str, ",")
|
|
|
|
for _,s in pairs(tokens) do
|
|
-- if(verbose) then ("<b>"..s.."</b><br>\n") end
|
|
local t = string.split(s, ";")
|
|
|
|
if(t[2] == "gt") then
|
|
op = ">"
|
|
else
|
|
if(t[2] == "lt") then
|
|
op = "<"
|
|
else
|
|
op = "=="
|
|
end
|
|
end
|
|
|
|
-- This is where magic happens: loadstring() evaluates the string
|
|
local what = "val = deltas['"..t[1].."']; if(val ".. op .. " " .. t[3] .. ") then return(true) else return(false) end"
|
|
local f = loadstring(what)
|
|
local rc = f()
|
|
|
|
local alert_id = mode.."_"..t[1] -- the alert identifies is the concat. of time granularity and condition, e.g., min_bytes
|
|
if(rc) then
|
|
local alert_msg = "Threshold <b>"..t[1].."</b> crossed by network <A HREF='"..ntop.getHttpPrefix().."/lua/network_details.lua?network="..key.."&page=historical'>"..network_name.."</A> [".. val .." ".. op .. " " .. t[3].."]"
|
|
|
|
if verbose then io.write("queuing alert\n") end
|
|
interface.engageNetworkAlert(network_name, alert_id, alert_type, alert_level, alert_msg)
|
|
if ntop.isPro() then
|
|
-- possibly send the alert to nagios as well
|
|
ntop.sendNagiosAlert(network_name, mode, t[1], alert_msg)
|
|
end
|
|
if(verbose) then print("<font color=red>".. alert_msg .."</font><br>\n") end
|
|
else
|
|
if(verbose) then print("<p><font color=green><b>Network threshold "..t[1].."@"..network_name.." not crossed</b> [value="..val.."]["..op.." "..t[3].."]</font><p>\n") end
|
|
interface.releaseNetworkAlert(network_name, alert_id, alert_type, alert_level, "released!")
|
|
if ntop.isPro() then
|
|
ntop.withdrawNagiosAlert(network_name, mode, t[1], "service OK")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function check_interface_alert(ifname, mode, old_table, new_table)
|
|
local ifname_clean = "iface_"..tostring(getInterfaceId(ifname))
|
|
if(verbose) then
|
|
print("check_interface_alert("..ifname..", "..mode..")<br>\n")
|
|
end
|
|
|
|
local alert_level = 2 -- alert_level_error
|
|
local alert_status = 1 -- alert_on
|
|
local alert_type = 2 -- alert_threshold_exceeded
|
|
|
|
-- Needed because Lua. loadstring() won't work otherwise.
|
|
old = old_table
|
|
new = new_table
|
|
|
|
-- str = "bytes;>;123,packets;>;12"
|
|
hkey = get_alerts_hash_name(mode, ifname)
|
|
duration = granularity2sec(mode)
|
|
str = ntop.getHashCache(hkey, ifname_clean)
|
|
|
|
-- if(verbose) then ("--"..hkey.."="..str.."--<br>") end
|
|
if((str ~= nil) and (str ~= "")) then
|
|
tokens = split(str, ",")
|
|
|
|
for _,s in pairs(tokens) do
|
|
-- if(verbose) then ("<b>"..s.."</b><br>\n") end
|
|
t = string.split(s, ";")
|
|
|
|
if(t[2] == "gt") then
|
|
op = ">"
|
|
else
|
|
if(t[2] == "lt") then
|
|
op = "<"
|
|
else
|
|
op = "=="
|
|
end
|
|
end
|
|
|
|
-- This is where magic happens: loadstring() evaluates the string
|
|
local what = "val = "..t[1].."(old, new, duration); if(val ".. op .. " " .. t[3] .. ") then return(true) else return(false) end"
|
|
local f = loadstring(what)
|
|
local rc = f()
|
|
local alert_id = mode.."_"..t[1] -- the alert identifies is the concat. of time granularity and condition, e.g., min_bytes
|
|
|
|
if(rc) then
|
|
local alert_msg = "Threshold <b>"..t[1].."</b> crossed by interface <A HREF='"..ntop.getHttpPrefix().."/lua/if_stats.lua?ifid="..tostring(getInterfaceId(ifname))..
|
|
"'>"..ifname.."</A> [".. val .." ".. op .. " " .. t[3].."]"
|
|
|
|
if verbose then io.write("queuing alert\n") end
|
|
interface.engageInterfaceAlert(alert_id, alert_type, alert_level, alert_msg)
|
|
if ntop.isPro() then
|
|
-- possibly send the alert to nagios as well
|
|
ntop.sendNagiosAlert(ifname_clean, mode, t[1], alert_msg)
|
|
end
|
|
if(verbose) then print("<font color=red>".. alert_msg .."</font><br>\n") end
|
|
else
|
|
if(verbose) then print("<p><font color=green><b>Threshold "..t[1].."@"..ifname.." not crossed</b> [value="..val.."]["..op.." "..t[3].."]</font><p>\n") end
|
|
interface.releaseInterfaceAlert(alert_id, alert_type, alert_level, "released!")
|
|
if ntop.isPro() then
|
|
ntop.withdrawNagiosAlert(ifname_clean, mode, t[1], "service OK")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function granularity2sec(g)
|
|
for _, granularity in pairs(alerts_granularity) do
|
|
if(granularity[1] == g) then
|
|
return(granularity[3])
|
|
end
|
|
end
|
|
|
|
return(0)
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function check_interface_threshold(ifname, mode)
|
|
interface.select(ifname)
|
|
local ifstats = interface.getStats()
|
|
ifname_id = ifstats.id
|
|
|
|
if are_alerts_suppressed("iface_"..ifname_id, ifname) then return end
|
|
|
|
if(verbose) then print("check_interface_threshold(ifaceId="..ifname_id..", timePeriod="..mode..")<br>\n") end
|
|
basedir = fixPath(dirs.workingdir .. "/" .. ifname_id .. "/json/" .. mode)
|
|
if(not(ntop.exists(basedir))) then
|
|
ntop.mkdir(basedir)
|
|
end
|
|
|
|
if (ifstats ~= nil) then
|
|
fname = fixPath(basedir.."/iface_"..ifname_id.."_lastdump")
|
|
|
|
if(verbose) then print(fname.."<p>\n") end
|
|
if (ntop.exists(fname)) then
|
|
-- Read old version
|
|
old_dump = persistence.load(fname)
|
|
if old_dump ~= nil and old_dump.stats ~= nil then
|
|
check_interface_alert(ifname, mode, old_dump, ifstats)
|
|
end
|
|
end
|
|
|
|
-- Write new version
|
|
persistence.store(fname, ifstats)
|
|
end
|
|
end
|
|
|
|
|
|
function check_networks_threshold(ifname, mode)
|
|
interface.select(ifname)
|
|
local subnet_stats = interface.getNetworksStats()
|
|
local alarmed_subnets = ntop.getHashKeysCache(get_alerts_hash_name(mode, ifname))
|
|
|
|
local ifname_id = interface.getStats().id
|
|
|
|
local basedir = fixPath(dirs.workingdir .. "/" .. ifname_id .. "/json/" .. mode)
|
|
if not ntop.exists(basedir) then
|
|
ntop.mkdir(basedir)
|
|
end
|
|
|
|
for subnet,sstats in pairs(subnet_stats) do
|
|
if sstats == nil or type(alarmed_subnets) ~= "table" or alarmed_subnets[subnet] == nil or are_alerts_suppressed(subnet, ifname) then goto continue end
|
|
|
|
local statspath = getPathFromKey(subnet)
|
|
statspath = fixPath(basedir.. "/" .. statspath)
|
|
if not ntop.exists(statspath) then
|
|
ntop.mkdir(statspath)
|
|
end
|
|
statspath = fixPath(statspath .. "/alarmed_subnet_stats_lastdump")
|
|
|
|
if ntop.exists(statspath) then
|
|
-- Read old version
|
|
old_dump = persistence.load(statspath)
|
|
if (old_dump ~= nil) then
|
|
-- (ifname, network_name, mode, key, old_table, new_table)
|
|
check_network_alert(ifname, subnet, mode, sstats['network_id'], old_dump, subnet_stats[subnet])
|
|
end
|
|
end
|
|
persistence.store(statspath, subnet_stats[subnet])
|
|
::continue::
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function check_host_threshold(ifname, host_ip, mode)
|
|
interface.select(ifname)
|
|
local ifstats = interface.getStats()
|
|
ifname_id = ifstats.id
|
|
local host_ip_fsname = host_ip
|
|
|
|
if are_alerts_suppressed(host_ip, ifname) then return end
|
|
|
|
if string.ends(host_ip, "@0") then
|
|
host_ip_fsname = string.split(host_ip, "@")
|
|
host_ip_fsname = host_ip_fsname[1]
|
|
end
|
|
|
|
if(verbose) then print("check_host_threshold("..ifname_id..", "..host_ip..", "..mode..")<br>\n") end
|
|
basedir = fixPath(dirs.workingdir .. "/" .. ifname_id .. "/json/" .. mode)
|
|
if(not(ntop.exists(basedir))) then
|
|
ntop.mkdir(basedir)
|
|
end
|
|
|
|
json = interface.getHostInfo(host_ip)
|
|
|
|
if(json ~= nil) then
|
|
fname = fixPath(basedir.."/".. host_ip_fsname ..".json")
|
|
if(verbose) then print(fname.."<p>\n") end
|
|
-- Read old version
|
|
f = io.open(fname, "r")
|
|
if(f ~= nil) then
|
|
old_json = f:read("*all")
|
|
f:close()
|
|
check_host_alert(ifname, host_ip, mode, host_ip, old_json, json["json"])
|
|
end
|
|
|
|
-- Write new version
|
|
f = io.open(fname, "w")
|
|
|
|
if(f ~= nil) then
|
|
f:write(json["json"])
|
|
f:close()
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function scanAlerts(granularity, ifname)
|
|
if(verbose) then print("[minute.lua] Scanning ".. granularity .." alerts for interface " .. ifname.."<p>\n") end
|
|
|
|
check_interface_threshold(ifname, granularity)
|
|
check_networks_threshold(ifname, granularity)
|
|
-- host alerts checks
|
|
local hash_key = get_alerts_hash_name(granularity, ifname)
|
|
local hosts = ntop.getHashKeysCache(hash_key)
|
|
if(hosts ~= nil) then
|
|
for h in pairs(hosts) do
|
|
if(verbose) then print("[minute.lua] Checking host " .. h.." alerts<p>\n") end
|
|
check_host_threshold(ifname, h, granularity)
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function performAlertsQuery(statement, what, opts)
|
|
local wargs = {"WHERE", "1=1"}
|
|
|
|
if tonumber(opts.row_id) ~= nil then
|
|
wargs[#wargs+1] = 'AND rowid = '..(opts.row_id)
|
|
end
|
|
|
|
if (not isEmptyString(opts.entity)) and (not isEmptyString(opts.entity_val)) then
|
|
if((what == "historical-flows") and (alertEntityRaw(opts.entity) == "host")) then
|
|
-- need to handle differently for flows table
|
|
local info = hostkey2hostinfo(opts.entity_val)
|
|
wargs[#wargs+1] = 'AND (cli_addr="'..(info.host)..'" OR srv_addr="'..(info.host)..'")'
|
|
wargs[#wargs+1] = 'AND vlan_id='..(info.vlan)
|
|
else
|
|
wargs[#wargs+1] = 'AND alert_entity = "'..(opts.entity)..'"'
|
|
wargs[#wargs+1] = 'AND alert_entity_val = "'..(opts.entity_val)..'"'
|
|
end
|
|
end
|
|
|
|
if not isEmptyString(opts.origin) then
|
|
local info = hostkey2hostinfo(opts.origin)
|
|
wargs[#wargs+1] = 'AND cli_addr="'..(info.host)..'"'
|
|
wargs[#wargs+1] = 'AND vlan_id='..(info.vlan)
|
|
end
|
|
|
|
if not isEmptyString(opts.target) then
|
|
local info = hostkey2hostinfo(opts.target)
|
|
wargs[#wargs+1] = 'AND srv_addr="'..(info.host)..'"'
|
|
wargs[#wargs+1] = 'AND vlan_id='..(info.vlan)
|
|
end
|
|
|
|
if tonumber(opts.epoch_begin) ~= nil then
|
|
wargs[#wargs+1] = 'AND alert_tstamp >= '..(opts.epoch_begin)
|
|
end
|
|
|
|
if tonumber(opts.epoch_end) ~= nil then
|
|
wargs[#wargs+1] = 'AND alert_tstamp <= '..(opts.epoch_end)
|
|
end
|
|
|
|
if not isEmptyString(opts.flowhosts_type) then
|
|
if opts.flowhosts_type ~= "all_hosts" then
|
|
local cli_local, srv_local = 0, 0
|
|
|
|
if opts.flowhosts_type == "local_only" then cli_local, srv_local = 1, 1
|
|
elseif opts.flowhosts_type == "remote_only" then cli_local, srv_local = 0, 0
|
|
elseif opts.flowhosts_type == "local_origin_remote_target" then cli_local, srv_local = 1, 0
|
|
elseif opts.flowhosts_type == "remote_origin_local_target" then cli_local, srv_local = 0, 1
|
|
end
|
|
|
|
if what == "historical-flows" then
|
|
wargs[#wargs+1] = "AND cli_localhost = "..cli_local
|
|
wargs[#wargs+1] = "AND srv_localhost = "..srv_local
|
|
end
|
|
-- TODO cannot apply it to other tables right now
|
|
end
|
|
end
|
|
|
|
if tonumber(opts.alert_type) ~= nil then
|
|
wargs[#wargs+1] = "AND alert_type = "..(opts.alert_type)
|
|
end
|
|
|
|
if tonumber(opts.alert_severity) ~= nil then
|
|
wargs[#wargs+1] = "AND alert_severity = "..(opts.alert_severity)
|
|
end
|
|
|
|
if((not isEmptyString(opts.sortColumn)) and (not isEmptyString(opts.sortOrder))) then
|
|
local order_by
|
|
|
|
if opts.sortColumn == "column_date" then
|
|
order_by = "alert_tstamp"
|
|
elseif opts.sortColumn == "column_severity" then
|
|
order_by = "alert_severity"
|
|
elseif opts.sortColumn == "column_type" then
|
|
order_by = "alert_type"
|
|
elseif((opts.sortColumn == "column_duration") and (what == "historical")) then
|
|
order_by = "(alert_tstamp_end - alert_tstamp)"
|
|
else
|
|
-- default
|
|
order_by = "alert_tstamp"
|
|
end
|
|
|
|
wargs[#wargs+1] = "ORDER BY "..order_by
|
|
wargs[#wargs+1] = string.upper(opts.sortOrder)
|
|
end
|
|
|
|
-- pagination
|
|
if((tonumber(opts.perPage) ~= nil) and (tonumber(opts.currentPage) ~= nil)) then
|
|
local to_skip = (tonumber(opts.currentPage)-1) * tonumber(opts.perPage)
|
|
wargs[#wargs+1] = "LIMIT"
|
|
wargs[#wargs+1] = to_skip..","..(opts.perPage)
|
|
end
|
|
|
|
local query = table.concat(wargs, " ")
|
|
local res
|
|
|
|
-- Uncomment to debug the queries
|
|
--~ tprint(statement.." (from "..what..") "..query)
|
|
|
|
if what == "engaged" then
|
|
res = interface.queryAlertsRaw(true, statement, query)
|
|
|
|
elseif what == "historical" then
|
|
res = interface.queryAlertsRaw(false, statement, query)
|
|
elseif what == "historical-flows" then
|
|
res = interface.queryFlowAlertsRaw(statement, query)
|
|
else
|
|
error("Invalid alert subject: "..what)
|
|
end
|
|
|
|
-- trigger counters refresh
|
|
if trimSpace(statement:lower()) == "delete" then
|
|
-- keep counters in sync only for engaged alerts
|
|
if what == "engaged" then
|
|
refreshHostsEngagedAlertsCounters()
|
|
end
|
|
interface.refreshNumAlerts()
|
|
end
|
|
|
|
return res
|
|
end
|
|
|
|
-- #################################
|
|
function refreshHostsEngagedAlertsCounters(host_vlan)
|
|
local hosts
|
|
|
|
if isEmptyString(host_vlan) == false then
|
|
hosts[host_vlan:gsub("@0","")] = {updated = false}
|
|
else
|
|
hosts = interface.getHostsInfo(false --[[ no details --]])
|
|
hosts = hosts["hosts"]
|
|
end
|
|
|
|
for k, v in pairs(hosts) do
|
|
if v["num_alerts"] > 0 then
|
|
hosts[k] = {updated = false}
|
|
else
|
|
hosts[k] = nil
|
|
end
|
|
end
|
|
|
|
local res = interface.queryAlertsRaw(true, "select alert_entity_val, count(*) cnt",
|
|
"where alert_entity="..alertEntity("host")
|
|
.. " group by alert_entity_val having cnt > 0")
|
|
|
|
if res == nil then res = {} end
|
|
|
|
-- update the hosts that actually have engaged alerts
|
|
for _, k in pairs(res) do
|
|
local entity_val = k["alert_entity_val"]
|
|
local sp = split(entity_val, "@")
|
|
local host = sp[1]
|
|
local vlan = tonumber(sp[2])
|
|
if vlan == 0 then
|
|
entity_val = host -- no vlan in the key if vlan is zero
|
|
end
|
|
|
|
interface.refreshNumAlerts(host, vlan, tonumber(k["cnt"]))
|
|
|
|
if hosts[entity_val] ~= nil then
|
|
hosts[entity_val]["updated"] = true
|
|
end
|
|
end
|
|
|
|
-- finally update the hosts that no longer have engaged alerts
|
|
for k, v in pairs(hosts) do
|
|
if v["updated"] == false then
|
|
interface.refreshNumAlerts(k, nil, 0);
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function getNumAlerts(what, options)
|
|
local num = 0
|
|
local opts = getUnpagedAlertOptions(options or {})
|
|
local res = performAlertsQuery("SELECT COUNT(*) AS count", what, opts)
|
|
if((res ~= nil) and (#res == 1) and (res[1].count ~= nil)) then num = tonumber(res[1].count) end
|
|
|
|
return num
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function getAlerts(what, options)
|
|
return performAlertsQuery("SELECT rowid, *", what, options)
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function deleteAlerts(what, options)
|
|
local opts = getUnpagedAlertOptions(options or {})
|
|
performAlertsQuery("DELETE", what, opts)
|
|
end
|
|
|
|
-- #################################
|
|
|
|
-- this function returns an object with parameters specific for one tab
|
|
function getTabParameters(_get, what)
|
|
local opts = {}
|
|
for k,v in pairs(_get) do opts[k] = v end
|
|
|
|
-- these options are contextual to the current tab (status)
|
|
if _get.status ~= what then
|
|
opts.alert_type = nil
|
|
opts.alert_severity = nil
|
|
end
|
|
if not isEmptyString(what) then opts.status = what end
|
|
return opts
|
|
end
|
|
|
|
-- #################################
|
|
|
|
-- Remove pagination options from the options
|
|
function getUnpagedAlertOptions(options)
|
|
local res = {}
|
|
|
|
local paged_option = { currentPage=1, perPage=1, sortColumn=1, sortOrder=1 }
|
|
|
|
for k,v in pairs(options) do
|
|
if not paged_option[k] then
|
|
res[k] = v
|
|
end
|
|
end
|
|
|
|
return res
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function checkDeleteStoredAlerts()
|
|
if((_POST["id_to_delete"] ~= nil) and (_GET["status"] ~= nil)) then
|
|
if(_POST["id_to_delete"] ~= "__all__") then
|
|
_GET["row_id"] = tonumber(_POST["id_to_delete"])
|
|
end
|
|
|
|
deleteAlerts(_GET["status"], _GET)
|
|
-- to avoid performing the delete again
|
|
_POST["id_to_delete"] = nil
|
|
-- to avoid filtering by id
|
|
_GET["row_id"] = nil
|
|
-- in case of delete "older than" button, resets the time period after the delete took place
|
|
if isEmptyString(_GET["epoch_begin"]) then _GET["epoch_end"] = nil end
|
|
|
|
local new_num = getNumAlerts(_GET["status"], _GET)
|
|
if new_num == 0 then
|
|
-- reset the filter to avoid hiding the tab
|
|
_GET["alert_severity"] = nil
|
|
_GET["alert_type"] = nil
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
local function drawDropdown(status, selection_name, active_entry, entries_table)
|
|
-- alert_level_keys and alert_type_keys are defined in lua_utils
|
|
local id_to_label
|
|
if selection_name == "severity" then
|
|
id_to_label = alertSeverityLabel
|
|
elseif selection_name == "type" then
|
|
id_to_label = alertTypeLabel
|
|
end
|
|
|
|
-- compute counters to avoid printing items that have zero entries in the database
|
|
local actual_entries = {}
|
|
if status == "historical-flows" then
|
|
|
|
if selection_name == "severity" then
|
|
actual_entries = interface.queryFlowAlertsRaw("select alert_severity id, count(*) count", "group by alert_severity")
|
|
elseif selection_name == "type" then
|
|
actual_entries = interface.queryFlowAlertsRaw("select alert_type id, count(*) count", "group by alert_type")
|
|
end
|
|
|
|
else -- dealing with non flow alerts (engaged and closed)
|
|
local engaged
|
|
if status == "engaged" then
|
|
engaged = true
|
|
elseif status == "historical" then
|
|
engaged = false
|
|
end
|
|
|
|
if selection_name == "severity" then
|
|
actual_entries = interface.queryAlertsRaw(engaged, "select alert_severity id, count(*) count", "group by alert_severity")
|
|
elseif selection_name == "type" then
|
|
actual_entries = interface.queryAlertsRaw(engaged, "select alert_type id, count(*) count", "group by alert_type")
|
|
end
|
|
|
|
end
|
|
|
|
local buttons = '<div class="btn-group">'
|
|
|
|
local button_label = firstToUpper(selection_name)
|
|
if active_entry ~= nil and active_entry ~= "" then
|
|
button_label = firstToUpper(active_entry)..'<span class="glyphicon glyphicon-filter"></span>'
|
|
end
|
|
|
|
buttons = buttons..'<button class="btn btn-link dropdown-toggle" data-toggle="dropdown">'..button_label
|
|
buttons = buttons..'<span class="caret"></span></button>'
|
|
|
|
buttons = buttons..'<ul class="dropdown-menu dropdown-menu-right" role="menu">'
|
|
|
|
local class_active = ""
|
|
if active_entry == nil then class_active = ' class="active"' end
|
|
buttons = buttons..'<li'..class_active..'><a href="?status='..status..'">All</a></i>'
|
|
|
|
for _, entry in pairs(actual_entries) do
|
|
local id = tonumber(entry["id"])
|
|
local count = entry["count"]
|
|
local label = id_to_label(id, true)
|
|
|
|
class_active = ""
|
|
if label == active_entry then class_active = ' class="active"' end
|
|
-- buttons = buttons..'<li'..class_active..'><a href="'..ntop.getHttpPrefix()..'/lua/show_alerts.lua?status='..status
|
|
buttons = buttons..'<li'..class_active..'><a href="?status='..status
|
|
buttons = buttons..'&alert_'..selection_name..'='..id..'">'
|
|
buttons = buttons..firstToUpper(label)..' ('..count..')</a></li>'
|
|
end
|
|
|
|
buttons = buttons..'</ul></div>'
|
|
|
|
return buttons
|
|
end
|
|
|
|
-- #################################
|
|
|
|
-- This function makes a consistent abstraction on entities
|
|
function getAlertSource(entity, entity_value, alt_name)
|
|
if entity == "host" then
|
|
local host_name
|
|
|
|
if alt_name then
|
|
host_name = alt_name
|
|
else
|
|
local hostInfo = hostkey2hostinfo(entity_value)
|
|
host_name = ntop.resolveAddress(hostInfo["host"])
|
|
end
|
|
|
|
return {
|
|
source = "host",
|
|
title = "Host",
|
|
label = "Host " .. host_name,
|
|
friendly_value = host_name,
|
|
}
|
|
else
|
|
if string.find(entity_value, "/") ~= nil then
|
|
local network_name
|
|
if alt_name then
|
|
network_name = alt_name
|
|
else
|
|
local hostInfo = hostkey2hostinfo(entity_value)
|
|
network_name = hostInfo["host"]
|
|
end
|
|
|
|
return {
|
|
source = "network",
|
|
title = "Network",
|
|
label = "Network " .. network_name,
|
|
friendly_value = network_name,
|
|
}
|
|
else
|
|
local interface_name
|
|
if alt_name then
|
|
interface_name = alt_name
|
|
else
|
|
-- TODO
|
|
interface_name = ""
|
|
end
|
|
|
|
return {
|
|
source = "interface",
|
|
title = "Interface",
|
|
label = "Interface " .. interface_name,
|
|
friendly_value = interface_name,
|
|
}
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function drawAlertSettings(alert_source, alert_val)
|
|
local alerts_enabled
|
|
local host_or_network = ((alert_source.source == "host") or (alert_source.source == "network"))
|
|
|
|
-- host specific
|
|
local flow_rate_alert_thresh
|
|
local syn_alert_thresh
|
|
local flows_alert_thresh
|
|
|
|
if not isAdministrator() then
|
|
return
|
|
end
|
|
|
|
-- handle settings change
|
|
local config_changed = false
|
|
|
|
local trigger_alerts = _POST["trigger_alerts"]
|
|
if(trigger_alerts ~= nil) then
|
|
if(trigger_alerts == "true") then
|
|
ntop.delHashCache(get_alerts_suppressed_hash_name(ifname), alert_val)
|
|
alerts_enabled = true
|
|
else
|
|
ntop.setHashCache(get_alerts_suppressed_hash_name(ifname), alert_val, trigger_alerts)
|
|
alerts_enabled = false
|
|
end
|
|
config_changed = true
|
|
else
|
|
if are_alerts_suppressed(alert_val, ifname) then
|
|
alerts_enabled = false
|
|
else
|
|
alerts_enabled = true
|
|
end
|
|
end
|
|
|
|
if host_or_network then
|
|
local hostInfo = hostkey2hostinfo(alert_val)
|
|
local host_ip = hostInfo["host"]
|
|
local host_vlan = hostInfo["vlan"]
|
|
|
|
flow_rate_alert_thresh = 'ntopng.prefs.'..host_ip..':'..tostring(host_vlan)..'.flow_rate_alert_threshold'
|
|
syn_alert_thresh = 'ntopng.prefs.'..host_ip..':'..tostring(host_vlan)..'.syn_alert_threshold'
|
|
flows_alert_thresh = 'ntopng.prefs.'..host_ip..':'..tostring(host_vlan)..'.flows_alert_threshold'
|
|
|
|
if _POST["flow_rate_alert_threshold"] ~= nil and _POST["flow_rate_alert_threshold"] ~= "" then
|
|
ntop.setPref(flow_rate_alert_thresh, _POST["flow_rate_alert_threshold"])
|
|
flow_rate_alert_thresh = _POST["flow_rate_alert_threshold"]
|
|
config_changed = true
|
|
else
|
|
local v = nil
|
|
if _POST["flow_rate_alert_threshold"] == nil then
|
|
v = ntop.getPref(flow_rate_alert_thresh)
|
|
end
|
|
|
|
if v ~= nil and v ~= "" then
|
|
flow_rate_alert_thresh = v
|
|
else
|
|
flow_rate_alert_thresh = 25
|
|
end
|
|
end
|
|
|
|
if _POST["syn_alert_threshold"] ~= nil and _POST["syn_alert_threshold"] ~= "" then
|
|
ntop.setPref(syn_alert_thresh, _POST["syn_alert_threshold"])
|
|
syn_alert_thresh = _POST["syn_alert_threshold"]
|
|
config_changed = true
|
|
else
|
|
local v = nil
|
|
if _POST["syn_alert_threshold"] == nil then
|
|
v = ntop.getPref(syn_alert_thresh)
|
|
end
|
|
|
|
if v ~= nil and v ~= "" then
|
|
syn_alert_thresh = v
|
|
else
|
|
syn_alert_thresh = 10
|
|
end
|
|
end
|
|
if _POST["flows_alert_threshold"] ~= nil and _POST["flows_alert_threshold"] ~= "" then
|
|
ntop.setPref(flows_alert_thresh, _POST["flows_alert_threshold"])
|
|
flows_alert_thresh = _POST["flows_alert_threshold"]
|
|
config_changed = true
|
|
else
|
|
local v = nil
|
|
if _POST["flows_alert_threshold"] == nil then
|
|
v = ntop.getPref(flows_alert_thresh)
|
|
end
|
|
|
|
if v ~= nil and v ~= "" then
|
|
flows_alert_thresh = v
|
|
else
|
|
flows_alert_thresh = 32768
|
|
end
|
|
end
|
|
end
|
|
|
|
if config_changed then
|
|
if alert_source.source == "host" then
|
|
local hostInfo = hostkey2hostinfo(alert_val)
|
|
local host_ip = hostInfo["host"]
|
|
local host_vlan = hostInfo["vlan"]
|
|
|
|
-- io.write("Reloading host '"..host_ip.."' alerts configuration...\n")
|
|
interface.refreshHostAlertsConfiguration(host_ip, host_vlan)
|
|
end
|
|
end
|
|
|
|
print("<table class=\"table table-striped table-bordered\">\n")
|
|
|
|
-- Source agnostic settings
|
|
|
|
local alerts_checked
|
|
local alerts_value
|
|
if alerts_enabled then
|
|
alerts_checked = 'checked="checked"'
|
|
alerts_value = "false" -- Opposite
|
|
else
|
|
alerts_checked = ""
|
|
alerts_value = "true" -- Opposite
|
|
end
|
|
|
|
print [[
|
|
<tr><th>]] print(alert_source.title) print[[ Alerts</th><td nowrap>
|
|
<form id="alert_prefs" class="form-inline" style="margin-bottom: 0px;" method="post">]]
|
|
print[[<input type="hidden" name="tab" value="alerts_preferences">]]
|
|
print('<input type="hidden" name="trigger_alerts" value="'..alerts_value..'"><input type="checkbox" value="1" '..alerts_checked..' onclick="this.form.submit();"> <i class="fa fa-exclamation-triangle fa-lg"></i> Trigger alerts for '.. alert_source.label ..'</input>')
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
print('</form>')
|
|
print('</td>')
|
|
print [[</tr>]]
|
|
|
|
-- Source specific settings
|
|
if host_or_network then
|
|
print("<tr><th width=250>" .. alert_source.title .. " Flow Alert Threshold</th>\n")
|
|
print [[<td>]]
|
|
print[[<form class="form-inline" style="margin-bottom: 0px;" method="post">]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
print('<input type="number" name="flow_rate_alert_threshold" style="width:7em;" placeholder="" min="0" step="1" max="100000" value="')
|
|
print(tostring(flow_rate_alert_thresh))
|
|
print [["></input>
|
|
<button type="submit" style="position: absolute; margin-top: 0; height: 26px" class="btn btn-default btn-xs">Save</button>
|
|
</form>
|
|
<small>
|
|
Max number of new flows/sec over which a host is considered a flooder. Default: 25.<br>
|
|
</small>]]
|
|
print[[
|
|
</td></tr>
|
|
]]
|
|
|
|
print("<tr><th width=250>" .. alert_source.title .. " SYN Alert Threshold</th>\n")
|
|
print [[<td>]]
|
|
print[[<form class="form-inline" style="margin-bottom: 0px;" method="post">]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
print [[<input type="number" name="syn_alert_threshold" style="width:7em;" placeholder="" min="0" step="5" max="100000" value="]]
|
|
print(tostring(syn_alert_thresh))
|
|
print [["></input>
|
|
<button type="submit" style="position: absolute; margin-top: 0; height: 26px" class="btn btn-default btn-xs">Save</button>
|
|
</form>
|
|
<small>
|
|
Max number of sent TCP SYN packets/sec over which a host is considered a flooder. Default: 10.<br>
|
|
</small>]]
|
|
print[[
|
|
</td></tr>
|
|
]]
|
|
|
|
print("<tr><th width=250>" .. alert_source.title .. " Flows Threshold</th>\n")
|
|
print [[<td>]]
|
|
print[[<form class="form-inline" style="margin-bottom: 0px;" method="post">]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
print [[<input type="number" name="flows_alert_threshold" style="width:7em;" placeholder="" min="0" step="1" max="100000" value="]]
|
|
print(tostring(flows_alert_thresh))
|
|
print [["></input>
|
|
<button type="submit" style="position: absolute; margin-top: 0; height: 26px" class="btn btn-default btn-xs">Save</button>
|
|
</form>
|
|
<small>
|
|
Max number of flows over which a host is considered a flooder. Default: 32768.<br>
|
|
</small>]]
|
|
print[[
|
|
</td></tr>
|
|
]]
|
|
end
|
|
|
|
print("</table>")
|
|
end
|
|
|
|
function drawAlertSourceSettings(alert_source, delete_button_msg, delete_confirm_msg, page_name, page_params, alt_name, show_entity)
|
|
local num_engaged_alerts, num_past_alerts, num_flow_alerts = 0,0,0
|
|
local tab = _GET["tab"]
|
|
|
|
local descr
|
|
if alert_source:match("/") then
|
|
descr = network_alert_functions_description
|
|
elseif not alert_source:match("%.") then
|
|
-- interface
|
|
descr = table.clone(alert_functions_description)
|
|
descr["active"] = nil
|
|
else
|
|
descr = alert_functions_description
|
|
end
|
|
|
|
print('<ul class="nav nav-tabs">')
|
|
|
|
local function printTab(tab, content, sel_tab)
|
|
if(tab == sel_tab) then print("\t<li class=active>") else print("\t<li>") end
|
|
print("<a href=\""..ntop.getHttpPrefix().."/lua/"..page_name.."?page=alerts&tab="..tab)
|
|
for param, value in pairs(page_params) do
|
|
print("&"..param.."="..value)
|
|
end
|
|
print("\">"..content.."</a></li>\n")
|
|
end
|
|
|
|
if(show_entity) then
|
|
-- these fields will be used to perform queries
|
|
_GET["entity"] = alertEntity(show_entity)
|
|
_GET["entity_val"] = alert_source
|
|
end
|
|
|
|
if(show_entity) then
|
|
-- possibly process pending delete arguments
|
|
checkDeleteStoredAlerts()
|
|
|
|
-- possibly add a tab if there are alerts configured for the host
|
|
num_engaged_alerts = getNumAlerts("engaged", getTabParameters(_GET, "engaged"))
|
|
num_past_alerts = getNumAlerts("historical", getTabParameters(_GET, "historical"))
|
|
num_flow_alerts = getNumAlerts("historical-flows", getTabParameters(_GET, "historical-flows"))
|
|
|
|
if num_past_alerts > 0 or num_engaged_alerts > 0 or num_flow_alerts > 0 then
|
|
if(tab == nil) then
|
|
-- if no tab is selected and there are alerts, we show them by default
|
|
tab = "alert_list"
|
|
end
|
|
|
|
printTab("alert_list", "Detected Alerts", tab)
|
|
else
|
|
-- if there are no alerts, we show the alert settings
|
|
if(tab=="alert_list") then tab = nil end
|
|
end
|
|
end
|
|
|
|
if(tab == nil) then tab = "alert_settings" end
|
|
|
|
printTab("alert_settings", '<i class="fa fa-cog" aria-hidden="true"></i> General Settings', tab)
|
|
|
|
for _,e in pairs(alerts_granularity) do
|
|
local k = e[1]
|
|
local l = e[2]
|
|
l = '<i class="fa fa-cog" aria-hidden="true"></i> '..l
|
|
printTab(k, l, tab)
|
|
end
|
|
|
|
print('</ul>')
|
|
|
|
if((show_entity) and (tab == "alert_list")) then
|
|
drawAlertTables(num_past_alerts, num_engaged_alerts, num_flow_alerts, _GET, true)
|
|
elseif(tab == "alert_settings") then
|
|
drawAlertSettings(getAlertSource(show_entity, alert_source, alt_name), alert_source)
|
|
else
|
|
-- Before doing anything we need to check if we need to save values
|
|
|
|
vals = { }
|
|
alerts = ""
|
|
to_save = false
|
|
|
|
if((_POST["to_delete"] ~= nil) and (_POST["SaveAlerts"] == nil)) then
|
|
delete_alert_configuration(alert_source, ifname)
|
|
alerts = nil
|
|
else
|
|
for k,_ in pairs(descr) do
|
|
value = _POST["value_"..k]
|
|
operator = _POST["operator_"..k]
|
|
|
|
if((value ~= nil) and (operator ~= nil)) then
|
|
--io.write("\t"..k.."\n")
|
|
to_save = true
|
|
value = tonumber(value)
|
|
if(value ~= nil) then
|
|
if(alerts ~= "") then alerts = alerts .. "," end
|
|
alerts = alerts .. k .. ";" .. operator .. ";" .. value
|
|
else
|
|
if ntop.isPro() then ntop.withdrawNagiosAlert(alert_source, tab, k, "alarm not installed") end
|
|
end
|
|
end
|
|
end
|
|
|
|
--print(alerts)
|
|
|
|
if(to_save) then
|
|
refresh_alert_configuration(alert_source, ifname, tab, alerts)
|
|
if(alerts == "") then
|
|
ntop.delHashCache(get_alerts_hash_name(tab, ifname), alert_source)
|
|
else
|
|
ntop.setHashCache(get_alerts_hash_name(tab, ifname), alert_source, alerts)
|
|
end
|
|
else
|
|
alerts = ntop.getHashCache(get_alerts_hash_name(tab, ifname), alert_source)
|
|
end
|
|
end
|
|
|
|
if(alerts ~= nil) then
|
|
--print(alerts)
|
|
--tokens = string.split(alerts, ",")
|
|
tokens = split(alerts, ",")
|
|
|
|
--print(tokens)
|
|
if(tokens ~= nil) then
|
|
for _,s in pairs(tokens) do
|
|
t = string.split(s, ";")
|
|
--print("-"..t[1].."-")
|
|
if(t ~= nil) then vals[t[1]] = { t[2], t[3] } end
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
print [[
|
|
</ul>
|
|
<table id="user" class="table table-bordered table-striped" style="clear: both"> <tbody>
|
|
<tr><th width=20%>Alert Function</th><th>Threshold</th></tr>
|
|
|
|
<form method="post">
|
|
]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
|
|
for k,v in pairsByKeys(descr, asc) do
|
|
print("<tr><th>"..k.."</th><td>\n")
|
|
print("<select name=operator_".. k ..">\n")
|
|
if((vals[k] ~= nil) and (vals[k][1] == "gt")) then print("<option selected=\"selected\"") else print("<option ") end
|
|
print("value=\"gt\">></option>\n")
|
|
|
|
if((vals[k] ~= nil) and (vals[k][1] == "eq")) then print("<option selected=\"selected\"") else print("<option ") end
|
|
print("value=\"eq\">=</option>\n")
|
|
|
|
if((vals[k] ~= nil) and (vals[k][1] == "lt")) then print("<option selected=\"selected\"") else print("<option ") end
|
|
print("value=\"lt\"><</option>\n")
|
|
print("</select>\n")
|
|
print("<input type=text name=\"value_"..k.."\" value=\"")
|
|
if(vals[k] ~= nil) then print(vals[k][2]) end
|
|
print("\">\n\n")
|
|
print("<br><small>"..v.."</small>\n")
|
|
print("</td></tr>\n")
|
|
end
|
|
|
|
print [[
|
|
<tr><th colspan=2 style="text-align: center; white-space: nowrap;" >
|
|
|
|
<input type="hidden" name="SaveAlerts" value="">
|
|
<input type="submit" class="btn btn-primary" value="Save Configuration">
|
|
</form>
|
|
|
|
<a href="#myModal" role="button" class="btn" data-toggle="modal">[ <i type="submit" class="fa fa-trash-o"></i> ]] print(delete_button_msg) print[[ ]</button></a>
|
|
<!-- Modal -->
|
|
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
|
|
<div class="modal-dialog">
|
|
<div class="modal-content">
|
|
<div class="modal-header">
|
|
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
|
|
<h3 id="myModalLabel">Confirm Action</h3>
|
|
</div>
|
|
<div class="modal-body">
|
|
<p>]] print(delete_confirm_msg) print(" ") if alt_name ~= nil then print(alt_name) else print(alert_source) end print[[?</p>
|
|
</div>
|
|
<div class="modal-footer">
|
|
<form class=form-inline style="margin-bottom: 0px;" method="post">
|
|
<input type=hidden name=to_delete value="">
|
|
]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
print [[ <button class="btn btn-default" data-dismiss="modal" aria-hidden="true">Close</button>
|
|
<button class="btn btn-primary" type="submit">Delete All</button>
|
|
</form>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</th> </tr>
|
|
|
|
|
|
|
|
</tbody> </table>
|
|
]]
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function housekeepingAlertsMakeRoom()
|
|
local ifnames = interface.getIfNames()
|
|
for id, n in pairs(ifnames) do
|
|
interface.select(n)
|
|
|
|
local ifId = getInterfaceId(n)
|
|
|
|
if interface.makeRoomRequested() then
|
|
local k = get_housekeeping_set_name(ifId)
|
|
|
|
local members = ntop.getMembersCache(k)
|
|
for _, m in pairs(members) do
|
|
ntop.delMembersCache(k, m)
|
|
m = m:split("|")
|
|
|
|
local alert_entity = tonumber(m[1])
|
|
local alert_entity_value = m[2]
|
|
local table_name = m[3]
|
|
|
|
interface.makeRoomAlerts(alert_entity, alert_entity_value, table_name)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- #################################
|
|
|
|
function drawAlertTables(num_past_alerts, num_engaged_alerts, num_flow_alerts, get_params, hide_extended_title, alt_nav_tabs)
|
|
local alert_items = {}
|
|
local url_params = {}
|
|
for k,v in pairs(get_params) do if k ~= "csrf" then url_params[k] = v end end
|
|
|
|
print [[
|
|
<div align=right><i id="PageRefresh" class="fa fa-refresh" aria-hidden="true"></i></div>
|
|
|
|
<script type="text/javascript">
|
|
$('#PageRefresh').click(function() {
|
|
document.location = "]] print(ntop.getHttpPrefix().."/lua/show_alerts.lua") print [[";
|
|
});
|
|
</script>
|
|
]]
|
|
|
|
|
|
if not alt_nav_tabs then
|
|
print[[
|
|
<br>
|
|
<ul class="nav nav-tabs" role="tablist" id="alert-tabs">
|
|
<!-- will be populated later with javascript -->
|
|
</ul>
|
|
]]
|
|
nav_tab_id = "alert-tabs"
|
|
else
|
|
nav_tab_id = alt_nav_tabs
|
|
end
|
|
|
|
print[[
|
|
<script>
|
|
|
|
function checkAlertActionsPanel() {
|
|
/* check if this tab is handled by this script */
|
|
if(getCurrentStatus() == "")
|
|
$("#alertsActionsPanel").css("display", "none");
|
|
else
|
|
$("#alertsActionsPanel").css("display", "");
|
|
}
|
|
|
|
function setActiveHashTab(hash) {
|
|
$('#]] print(nav_tab_id) --[[ see "clicked" below for the other part of this logic ]] print[[ a[href="' + hash + '"]').tab('show');
|
|
}
|
|
|
|
/* Handle the current tab */
|
|
$(function() {
|
|
$("ul.nav-tabs > li > a").on("shown.bs.tab", function(e) {
|
|
var id = $(e.target).attr("href").substr(1);
|
|
history.replaceState(null, null, "#"+id);
|
|
updateDeleteLabel(id);
|
|
updateDeleteContext(id);
|
|
checkAlertActionsPanel();
|
|
});
|
|
|
|
var hash = window.location.hash;
|
|
if (! hash && ]] if(isEmptyString(status) and not isEmptyString(_GET["tab"])) then print("true") else print("false") end print[[)
|
|
hash = "#]] print(_GET["tab"] or "") print[[";
|
|
|
|
if (hash)
|
|
setActiveHashTab(hash)
|
|
|
|
$(function() { checkAlertActionsPanel(); });
|
|
});
|
|
|
|
function getActiveTabId() {
|
|
return $("#]] print(nav_tab_id) print[[ > li.active > a").attr('href').substr(1);
|
|
}
|
|
|
|
function updateDeleteLabel(tabid) {
|
|
var label = $("#purgeBtnLabel");
|
|
var prefix = "]]
|
|
if not isEmptyString(_GET["entity"]) then print(alertEntityLabel(_GET["entity"], true).." ") end
|
|
print [[";
|
|
var val = "";
|
|
|
|
if (tabid == "tab-table-engaged-alerts")
|
|
val = "Engaged ";
|
|
else if (tabid == "tab-table-alerts-history")
|
|
val = "Past ";
|
|
else if (tabid == "tab-table-flow-alerts-history")
|
|
val = "Past Flow ";
|
|
|
|
label.html(prefix + val);
|
|
}
|
|
|
|
function updateDeleteContext(tabid) {
|
|
$("#modalDeleteForm input[name='status']").val(getCurrentStatus());
|
|
}
|
|
|
|
function getCurrentStatus() {
|
|
var tabid = getActiveTabId();
|
|
|
|
if (tabid == "tab-table-engaged-alerts")
|
|
val = "engaged";
|
|
else if (tabid == "tab-table-alerts-history")
|
|
val = "historical";
|
|
else if (tabid == "tab-table-flow-alerts-history")
|
|
val = "historical-flows";
|
|
else
|
|
val = "";
|
|
|
|
return val;
|
|
}
|
|
</script>
|
|
]]
|
|
if not alt_nav_tabs then print [[<div class="tab-content">]] end
|
|
|
|
local status = _GET["status"]
|
|
local status_reset = 0
|
|
|
|
if num_engaged_alerts > 0 then
|
|
alert_items[#alert_items + 1] = {["label"] = i18n("show_alerts.engaged_alerts"),
|
|
["div-id"] = "table-engaged-alerts", ["status"] = "engaged"}
|
|
elseif status == "engaged" then
|
|
status = nil; status_reset = 1
|
|
end
|
|
|
|
if num_past_alerts > 0 then
|
|
alert_items[#alert_items +1] = {["label"] = i18n("show_alerts.past_alerts"),
|
|
["div-id"] = "table-alerts-history", ["status"] = "historical"}
|
|
elseif status == "historical" then
|
|
status = nil; status_reset = 1
|
|
end
|
|
|
|
if num_flow_alerts > 0 then
|
|
alert_items[#alert_items +1] = {["label"] = i18n("show_alerts.flow_alerts"),
|
|
["div-id"] = "table-flow-alerts-history", ["status"] = "historical-flows"}
|
|
elseif status == "historical-flows" then
|
|
status = nil; status_reset = 1
|
|
end
|
|
|
|
for k, t in ipairs(alert_items) do
|
|
local clicked = "0"
|
|
if((not alt_nav_tabs) and ((k == 1 and status == nil) or (status ~= nil and status == t["status"]))) then
|
|
clicked = "1"
|
|
end
|
|
print [[
|
|
<div class="tab-pane fade in" id="tab-]] print(t["div-id"]) print[[">
|
|
<div id="]] print(t["div-id"]) print[["></div>
|
|
</div>
|
|
|
|
<script type="text/javascript">
|
|
|
|
$("#]] print(nav_tab_id) print[[").append('<li><a href="#tab-]] print(t["div-id"]) print[[" clicked="]] print(clicked) print[[" role="tab" data-toggle="tab">]] print(t["label"]) print[[</a></li>')
|
|
|
|
$('a[href="#tab-]] print(t["div-id"]) print[["]').on('shown.bs.tab', function (e) {
|
|
// append the li to the tabs
|
|
|
|
$("#]] print(t["div-id"]) print[[").datatable({
|
|
url: "]] print(ntop.getHttpPrefix()) print [[/lua/get_alerts_data.lua?" + $.param(]] print(tableToJsObject(getTabParameters(url_params, t["status"]))) print [[),
|
|
showFilter: true,
|
|
showPagination: true,
|
|
buttons: [']]
|
|
|
|
local title = t["label"]
|
|
|
|
-- TODO this condition should be removed and page integration support implemented
|
|
if((isEmptyString(_GET["entity"])) and isEmptyString(_GET["epoch_begin"]) and isEmptyString(_GET["epoch_end"])) then
|
|
-- alert_level_keys and alert_type_keys are defined in lua_utils
|
|
local alert_severities = {}
|
|
for _, s in pairs(alert_level_keys) do alert_severities[#alert_severities +1 ] = s[3] end
|
|
local alert_types = {}
|
|
for _, s in pairs(alert_type_keys) do alert_types[#alert_types +1 ] = s[3] end
|
|
|
|
local a_type, a_severity = nil, nil
|
|
if clicked == "1" then
|
|
if tonumber(_GET["alert_type"]) ~= nil then a_type = alertTypeLabel(_GET["alert_type"], true) end
|
|
if tonumber(_GET["alert_severity"]) ~= nil then a_severity = alertSeverityLabel(_GET["alert_severity"], true) end
|
|
end
|
|
|
|
print(drawDropdown(t["status"], "type", a_type, alert_types))
|
|
print(drawDropdown(t["status"], "severity", a_severity, alert_severities))
|
|
elseif((not isEmptyString(_GET["entity_val"])) and (not hide_extended_title)) then
|
|
if entity == "host" then
|
|
title = title .. " - " .. getAlertSource(entity, _GET["entity_val"]).label
|
|
end
|
|
end
|
|
|
|
print[['],
|
|
/*
|
|
buttons: ['<div class="btn-group"><button class="btn btn-link dropdown-toggle" data-toggle="dropdown">Severity<span class="caret"></span></button><ul class="dropdown-menu" role="menu"><li>test severity</li></ul></div><div class="btn-group"><button class="btn btn-link dropdown-toggle" data-toggle="dropdown">Type<span class="caret"></span></button><ul class="dropdown-menu" role="menu"><li>test type</li></ul></div>'],
|
|
*/
|
|
]]
|
|
|
|
if(_GET["currentPage"] ~= nil and _GET["status"] == t["status"]) then
|
|
print("currentPage: ".._GET["currentPage"]..",\n")
|
|
end
|
|
if(_GET["perPage"] ~= nil and _GET["status"] == t["status"]) then
|
|
print("perPage: ".._GET["perPage"]..",\n")
|
|
end
|
|
print ('sort: [ ["' .. getDefaultTableSort("alerts") ..'","' .. getDefaultTableSortOrder("alerts").. '"] ],\n')
|
|
print [[
|
|
title: "]] print(title) print[[",
|
|
columns: [
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_actions"))print[[",
|
|
field: "column_key",
|
|
css: {
|
|
textAlign: 'center', width: '100px'
|
|
}
|
|
},
|
|
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_datetime"))print[[",
|
|
field: "column_date",
|
|
sortable: true,
|
|
css: {
|
|
textAlign: 'center'
|
|
}
|
|
},
|
|
]]
|
|
|
|
if t["status"] ~= "historical-flows" then
|
|
print[[
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_duration"))print[[",
|
|
field: "column_duration",
|
|
sortable: true,
|
|
css: {
|
|
textAlign: 'center'
|
|
}
|
|
},
|
|
]]
|
|
end
|
|
|
|
print[[
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_severity"))print[[",
|
|
field: "column_severity",
|
|
sortable: true,
|
|
css: {
|
|
textAlign: 'center'
|
|
}
|
|
},
|
|
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_type"))print[[",
|
|
field: "column_type",
|
|
sortable: true,
|
|
css: {
|
|
textAlign: 'center'
|
|
}
|
|
},
|
|
|
|
{
|
|
title: "]]print(i18n("show_alerts.alert_description"))print[[",
|
|
field: "column_msg",
|
|
css: {
|
|
textAlign: 'left'
|
|
}
|
|
}
|
|
]
|
|
});
|
|
});
|
|
]]
|
|
if (clicked == "1") then
|
|
print[[
|
|
// must wait for modalDeleteAlertsStatus to be created
|
|
$(function() {
|
|
var status_reset = ]] print(status_reset) --[[ this is necessary because of status parameter inconsistency after tab switch ]] print[[;
|
|
var tabid;
|
|
|
|
if ((status_reset) || (getCurrentStatus() == "")) {
|
|
tabid = "]] print("tab-"..t["div-id"]) print[[";
|
|
history.replaceState(null, null, "#"+tabid);
|
|
} else {
|
|
tabid = getActiveTabId();
|
|
}
|
|
|
|
updateDeleteLabel(tabid);
|
|
updateDeleteContext(tabid);
|
|
});
|
|
]]
|
|
end
|
|
print[[
|
|
</script>
|
|
]]
|
|
|
|
end
|
|
|
|
local zoom_vals = {
|
|
{ "5 min", 5*60*1, i18n("show_alerts.older_5_minutes_ago") },
|
|
{ "30 min", 30*60*1, i18n("show_alerts.older_30_minutes_ago") },
|
|
{ "1 hour", 60*60*1, i18n("show_alerts.older_1_hour_ago") },
|
|
{ "1 day", 60*60*24, i18n("show_alerts.older_1_day_ago") },
|
|
{ "1 week", 60*60*24*7, i18n("show_alerts.older_1_week_ago") },
|
|
{ "1 month", 60*60*24*31, i18n("show_alerts.older_1_month_ago") },
|
|
{ "6 months", 60*60*24*31*6, i18n("show_alerts.older_6_months_ago") },
|
|
{ "1 year", 60*60*24*366 , i18n("show_alerts.older_1_year_ago") }
|
|
}
|
|
|
|
if (num_past_alerts > 0 or num_flow_alerts > 0 or num_engaged_alerts > 0) then
|
|
-- trigger the click on the right tab to force table load
|
|
print[[
|
|
<script type="text/javascript">
|
|
$("[clicked=1]").trigger("click");
|
|
</script>
|
|
]]
|
|
|
|
if not alt_nav_tabs then print [[</div> <!-- closes tab-content -->]] end
|
|
local has_fixed_period = ((not isEmptyString(_GET["epoch_begin"])) or (not isEmptyString(_GET["epoch_end"])))
|
|
|
|
print('<div id="alertsActionsPanel">')
|
|
print('<br>Alerts to Purge: ')
|
|
print[[<select id="deleteZoomSelector" class="form-control" style="display:]] if has_fixed_period then print("none") else print("inline") end print[[; width:14em; margin:0 1em;">]]
|
|
local all_msg = ""
|
|
|
|
if not has_fixed_period then
|
|
print('<optgroup label="older than">')
|
|
for k,v in ipairs(zoom_vals) do
|
|
print('<option data-older="'..(os.time() - zoom_vals[k][2])..'" data-msg="'.." "..zoom_vals[k][3].. '">'..zoom_vals[k][1]..'</option>\n')
|
|
end
|
|
print('</optgroup>')
|
|
else
|
|
all_msg = " in the selected time period"
|
|
end
|
|
|
|
print('<option selected="selected" data-older="0" data-msg="') print(all_msg) print('">All</option>\n')
|
|
|
|
|
|
print[[</select>]]
|
|
print[[<button id="buttonOpenDeleteModal" data-toggle="modal" data-target="#myModal" class="btn btn-default"><i type="submit" class="fa fa-trash-o"></i> Purge <span id="purgeBtnLabel"></span>Alerts</button>
|
|
<!-- Modal -->
|
|
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
|
|
<div class="modal-dialog">
|
|
<div class="modal-content">
|
|
<div class="modal-header">
|
|
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
|
|
<h3 id="myModalLabel">Confirm Action</h3>
|
|
</div>
|
|
<div class="modal-body">
|
|
<p>Do you really want to purge all the<span id="modalDeleteContext"></span> alerts<span id="modalDeleteAlertsMsg"></span>?</p>
|
|
</div>
|
|
<div class="modal-footer">
|
|
|
|
<form id="modalDeleteForm" class=form-inline style="margin-bottom: 0px;" method="post" onsubmit="return checkModalDelete();">
|
|
<input type="hidden" id="modalDeleteAlertsOlderThan" value="-1" />
|
|
]]
|
|
print('<input id="csrf" name="csrf" type="hidden" value="'..ntop.getRandomCSRFValue()..'" />\n')
|
|
|
|
-- we need to dynamically modify parameters at js-time because we switch tab
|
|
local delete_params = getTabParameters(url_params, nil)
|
|
delete_params.epoch_end = -1
|
|
|
|
print [[
|
|
<button class="btn btn-default" data-dismiss="modal" aria-hidden="true">Close</button>
|
|
<button class="btn btn-primary" type="submit">Purge [<img id="alerts-summary-wait" src="]] print(ntop.getHttpPrefix()) print[[/img/loading.gif"\><span id="alerts-summary-body"></span> alerts]</button>
|
|
</form>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div> <!-- closes alertsActionsPanel -->
|
|
|
|
<script>
|
|
|
|
paramsToForm('#modalDeleteForm', ]] print(tableToJsObject(delete_params)) print[[);
|
|
|
|
function getTabSpecificParams() {
|
|
var tab_specific = {status:getCurrentStatus()};
|
|
var period_end = $('#modalDeleteAlertsOlderThan').val();
|
|
if (parseInt(period_end) > 0)
|
|
tab_specific.epoch_end = period_end;
|
|
|
|
if (tab_specific.status == "]] print(_GET["status"]) print[[") {
|
|
tab_specific.alert_severity = ]] if tonumber(_GET["alert_severity"]) ~= nil then print(_GET["alert_severity"]) else print('""') end print[[;
|
|
tab_specific.alert_type = ]] if tonumber(_GET["alert_type"]) ~= nil then print(_GET["alert_type"]) else print('""') end print[[;
|
|
}
|
|
|
|
// merge the general parameters to the tab specific ones
|
|
return paramsExtend(]] print(tableToJsObject(getTabParameters(url_params, nil))) print[[, tab_specific);
|
|
}
|
|
|
|
function checkModalDelete() {
|
|
var get_params = getTabSpecificParams();
|
|
var post_params = {};
|
|
post_params.csrf = "]] print(ntop.getRandomCSRFValue()) print[[";
|
|
post_params.id_to_delete = "__all__";
|
|
|
|
// this actually performs the request
|
|
var form = paramsToForm('<form method="post"></form>', post_params);
|
|
form.attr("action", "?" + $.param(get_params));
|
|
form.appendTo('body').submit();
|
|
return false;
|
|
}
|
|
|
|
var cur_alert_num_req = null;
|
|
|
|
/* This acts before shown.bs.modal event, avoiding visual fields substitution glitch */
|
|
$('#buttonOpenDeleteModal').on('click', function() {
|
|
var lb = $("#purgeBtnLabel");
|
|
var zoomsel = $("#deleteZoomSelector").find(":selected");
|
|
|
|
$(".modal-body #modalDeleteAlertsMsg").html(zoomsel.data('msg') + ']]
|
|
if tonumber(_GET["alert_severity"]) ~= nil then
|
|
print(' with severity "'..alertSeverityLabel(_GET["alert_severity"], true)..'" ')
|
|
elseif tonumber(_GET["alert_type"]) ~= nil then
|
|
print(' with type "'..alertTypeLabel(_GET["alert_type"], true)..'" ')
|
|
end
|
|
print[[');
|
|
if (lb.length == 1)
|
|
$(".modal-body #modalDeleteContext").html(" " + lb.html());
|
|
|
|
$('#modalDeleteAlertsOlderThan').val(zoomsel.data('older'));
|
|
|
|
cur_alert_num_req = $.ajax({
|
|
type: 'GET',
|
|
]] print("url: '"..ntop.getHttpPrefix().."/lua/get_num_alerts.lua'") print[[,
|
|
data: getTabSpecificParams(),
|
|
complete: function() {
|
|
$("#alerts-summary-wait").hide();
|
|
}, error: function() {
|
|
$("#alerts-summary-body").html("?");
|
|
}, success: function(count){
|
|
$("#alerts-summary-body").html(count);
|
|
if (count == 0)
|
|
$('#myModal button[type="submit"]').attr("disabled", "disabled");
|
|
}
|
|
});
|
|
});
|
|
|
|
$('#myModal').on('hidden.bs.modal', function () {
|
|
if(cur_alert_num_req) {
|
|
cur_alert_num_req.abort();
|
|
cur_alert_num_req = null;
|
|
}
|
|
|
|
$("#alerts-summary-wait").show();
|
|
$("#alerts-summary-body").html("");
|
|
$('#myModal button[type="submit"]').removeAttr("disabled");
|
|
})
|
|
</script>]]
|
|
end
|
|
|
|
end
|
|
|
|
function alertAnomalousHosts()
|
|
local ifnames = interface.getIfNames()
|
|
local cb = function(_ifname, ifstats)
|
|
local ha = interface.getHostsWithAnomalies()
|
|
|
|
for host_key, host_stats in pairs(ha) do
|
|
local anomalies = host_stats["anomalies"]
|
|
|
|
if type(anomalies) == "table" then
|
|
for anom_key, anom_stats in pairs(anomalies) do
|
|
-- TODO: engage alert for anom_key if alert has not yet been engaged
|
|
end
|
|
end
|
|
end
|
|
|
|
--TODO: check, among the currently engaged alerts, those that are no longed engaged
|
|
-- by checking in ha retrieved above. If an alert is engaged, but the corresponding host
|
|
-- is no longer in ha, then the alert must be released.
|
|
end
|
|
|
|
callback_utils.foreachInterface(ifnames, enable_second_debug, cb)
|
|
end
|