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|
-- Authors: Mario García H. <drosophila@nmental.com>
-- License: GPL, version 2
-- Last Changed: 2006-12-10
--
------------------------------------------------------------------------------------
--
-- DESCRIPTION:
-- [ Multi Purpose Monitor for Ion3]
-- It detects if security logs, mboxes, maildirs, some files, etcetera were
-- changed. If they were changed in fact, shows a flashing (blinking) alarm with a
-- message text specified on settings (or default = !!).
--
-- If you specify your mail inbox it will do a flashing advise of new email.
-- If you specify a security log it will reflect your security warnings.
--
-- You could specify whatever files or directories that do you want to monitor.
--> All in Unix* like Oses is a file...
--
-- PLEASE READ THIS:
-- * This is another toy for Ion3.
-- ** It is not intended to replace or use Gamin, F.A.M. like libs.
-- *** This is not a full whistles and sparkles power security monitor like Tripwire.
-- **** It is not a good idea to rely on this script to take care of sensible information.
-- ***** The level of recursion is only of one level for directories.
-- It only provides a very simple way to know if:
--
-- -> Inode number was modified or
-- -> Size has changed or
-- -> User-group has changed or
-- -> Access permisions have changed or
-- -> Name changes (including file deletion and moving) then
-- ___________________________________________________________
-- It flashes a specified message for 'certain specified time'
--
-- PUPOSE:
-- To share a quick method for timers control and blinking patterns on Ion3 statusbars,
-- I mean, to fill statusbar(s) with annoying moving things. So don't use it ;]
--
------- USAGE EXAMPLE : ------------------------------------------------------------
--
-- If you don't know how to get this working please refer to Ion manual pages,
-- Ion home page or some other scripts. Then, write something like this on cfg_statusd.lua :
--
-- mod_statusbar.create{
-- template = "whatever.. %flashing ..whatever", --> Modify this part.
-- },
--
----> And add somethig like this to:
--
-- mod_statusbar.launch_statusd{
--
-- flashing = {
-- files = {"/mnt/Feed_My_Dog", "~/Mail"} --> The intended purpose files (logs, mail)
-- log = ".ion3/flashing.log" --> Some file in your $HOME[...] path.
-- NOTE: $HOME is assumed by 'log'.
-- Paths not in $HOME are invalid.
-- update_interval = 3000, --> Time in milliseconds to update info.
-- flash_interval = 300, --> Speed of flashing pattern. (msecs.)
-- alarm_message = "!!", --> Flashing Message (defaults are a good bet).
-- normal_message = "--", --> Normal status message.
-- turn_off = 60, --> This, avoids to show the annoying
-- message for ever. The value represents
-- }, cycles (10 * flash_interval msecs.)
-- }
------------------------------------------------------------------------------------
--
-- LICENSE: GPL2 Copyright(C)2006 Mario García H.
-- (See http://www.gnu.org/licenses/gpl.html to read complete license)
--
-- T.STAMP: Sun Dec 10 02:08:39 2006
--
-- DEPENDS: None at all.
--
-- INSECTS: You are the entomologist. You tell me.
--
-- NOTES ON USAGE:
-- - This script creates his own log of activity. You can choose a name and path on settings.
-- - If you remove the log, alarms will cease (rm -f *.log). Is not necessary to restart Ion.
-- - If you change the settings, the log will be auto-removed and re-written to reflect the changes
-- without false alarms.
-- - If, for some impossible circumstance, the status of some file or directory is normal again,
-- flashing will cease the annoying flashing thing by him self.
-- - If alarms are activated on certain time and you exit Ion current session, the
-- next session in Ion you will see the annoying thing on your screen... again.
-- - If you exit Ion and then you do changes to a file, the next time on Ion the alarms will do blinking.
-- - The minimum number for flashing interval (blink) is 300.
--
-- CONTACT:
-- G.H. < drosophila (at) Nmental (dot) com>
--
------------------------------------------------------------------------------------
local defaults = {
files = { "~/.ion3" }, --> If you like so much Ion, this is the better default.
-- If you change this setting, the log will be auto-updated!
log = ".ion3/flashing.log", --> Where do you like to log? Paths not in $HOME [...]
-- are invalid. If you change this file, please, remove
-- your self the last file used. You are warned.
-- NOTE: $HOME is assumed by 'log'.
alarm_message = "!!", --> Put here the alarm message.
normal_message = "--", --> Put here the normal status message.
update_interval = 5*1000, --> Check your files every X milliseconds.
flash_interval = 400, --> Blinking interval in milliseconds.
turn_off = 500, --> Turn Off the alarm if it annoys you too much time:
-- (turn_off*flash_interval) milliseconds.
--> If you want permanent alarms: 3*999*999 is OK.
}
local settings = table.join(statusd.get_config("flashing"), defaults)
---SOME INSANE LOCALS :-------------------------------------------------------------
local flashing_timer
local is_ok = true
local flash = false
local home = os.getenv("HOME")
local message_lenght = string.len(settings.alarm_message)
local turn_off = settings.turn_off
settings.flash_interval = settings.flash_interval > 299 and settings.flash_interval or 300
---CONFIRM SOME INFO :--------------------------------------------------------------
local function confirm_someinfo()
local keys = table.concat(settings.files, " * ")
local log_file = home.."/"..settings.log
local check_status = function()
local check = io.popen("ls -liL --color=none "..table.concat(settings.files, " "))
local status = check:read("*a"); check:close()
return status
end
local new_log = function()
local new = io.open(log_file, "w")
if not new then
return false
else
new:write(keys.."\n"..check_status())
new:close()
os.execute("chmod 400 "..log_file)
new = io.open(log_file, "r")
local log = new:read("*a"); new:close()
return log
end
end
local check_changes = function()
local file = io.open(log_file, "r")
if not file then
return
else
local changes = file:read("*l"); file:close()
return changes ~= keys and
os.execute("rm -f "..log_file) or 1
end
end
if not turn_off then
turn_off = settings.turn_off --> Reinitialize turn_off if flash was done
is_ok = true
os.execute("rm -f "..log_file)
end
check_changes()
local file = io.open(log_file, "r")
local log = file == nil and new_log() or file:read("*a")
is_ok = keys.."\n"..check_status() == log
return
end
---FLASHING PATERNS :---------------------------------------------------------------
local function flash_alarm()
turn_off = turn_off > 0 and turn_off - 1 or false --> Regresive shut down counter.
-- this is an extra ;>
local show = function()
statusd.inform("flashing", settings.alarm_message)
statusd.inform("flashing_hint", "critical")
return true
end
local hide = function()
statusd.inform("flashing", string.rep(".", message_lenght))
return false
end
flash = flash == false and show() or hide() --> Do the real hide and show (flash)
return
end
---FUNCTIONS CALLINGS :-------------------------------------------------------------
local function update_timer()
confirm_someinfo() --> A function checking something ... and changing between states
if is_ok then
statusd.inform("flashing", settings.normal_message)
statusd.inform("flashing_hint", "normal")
flashing_timer:set(settings.update_interval, update_timer) --> Take different update_interval
else
flashing_timer:set(settings.flash_interval, update_timer) --> Take different update_interval
flash_alarm()
end
end
------------------------------------------------------------------------------------
flashing_timer = statusd.create_timer()
update_timer()
|
