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-- Authors: Raffaello Pelagalli <raffa@niah.org>
-- License: LGPL, version 2.1 or later
-- Last Changed: 2008-05-08
--
-- statusd_nginfo.lua
--
-- Made by Raffaello Pelagalli (raffa at niah.org)
--
-- Started on Sun Mar 9 00:22:31 2008 Raffaello Pelagalli
-- Last update Thu May 8 23:29:32 2008 Raffaello Pelagalli
--
-- This library is free software; you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public
-- License as published by the Free Software Foundation; either
-- version 2.1 of the License, or (at your option) any later version.
--
-- This library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with this library; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-- 02110-1301 USA
--
-- Nagios checking script
-- Reports nagios status in ion status bar
-- Sample configuration:
-- mod_statusbar.launch_statusd{
-- ...
-- nginfo = {
-- urls = {
-- "http://user1:password1@server1.domain1.tld/cgi-bin/nagios2/nginfo.pl",
-- "http://user2:password2@server2.domain2.tld/nagios/cgi-bin/nginfo.pl",
-- },
-- }
-- ...
-- }
--
-- Need to be used with nginfo.pl script from
-- http://redstack.net/blog/index.php/2008/05/08/nagios-status-report-in-ion3-statusbar.html
require "lxp"
local ng_timer
local error = false
local status = {0, 0, 0, 0}
local defaults = {
update_interval=30*1000,
urls = { },
}
local settings = table.join(statusd.get_config("nginfo"), defaults)
nginfo_callbacks = {
StartElement = function (parser, name)
if (name == "current_state") then
nginfo_callbacks.CharacterData = function (parser, val)
status[tonumber(val) + 1] =
status[tonumber(val) + 1] + 1
end
end
end,
EndElement = function (parser, name)
if (name == "current_state") then
nginfo_callbacks.CharacterData = false
end
end,
CharacterData = false,
}
function parse (data)
p = lxp.new(nginfo_callbacks)
p:parse(b)
p:close()
end
function get_nginfo ()
status = {0, 0, 0, 0}
error = false
local http = require("socket.http")
socket.http.TIMEOUT=10
local errstr = " ERROR while reading data"
for n, url in pairs(settings.urls) do
b, c, h = http.request(url)
if not (c == 200) then
error = true
errstr = errstr .. " (NET " .. tostring(c) .. ")"
else
local st, err = pcall(parse, b)
if not st then
error = true
errstr = errstr .. " (XML" .. err .. ")"
end
end
end
if not error then
errstr = ""
end
return "OK: " .. tostring(status[1])
.. ", WARN: " .. tostring(status[2])
.. ", ERROR: " .. tostring(status[3])
.. ", UNKN: " .. tostring(status[4])
.. errstr
end
local function update_nginfo()
statusd.inform("nginfo", get_nginfo())
if (status[3] > 0 or status[4] > 0) then
statusd.inform("nginfo_hint", "critical")
elseif (status[2] > 0) then
statusd.inform("nginfo_hint", "important")
else
statusd.inform("nginfo_hint", "normal")
end
ng_timer:set(settings.update_interval, update_nginfo)
end
-- Init
ng_timer=statusd.create_timer()
update_nginfo()
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