#! /usr/bin/python

import os,sys
from string import *

warn = 0
subject = '"ATTN: problemes de courier / mail problems" '
txt = open('warn_tmpl','r').read()
body = 'warning'
max = 2

if len(sys.argv) > 1 :
	for a in sys.argv[1:] :
		if a in ('help', '-h', '--help'):
			print "Usage: %s [help | [<size> [warn]]" % sys.argv[0]
			sys.exit()
		elif a in ('warn', '-w', '--warn'):
			warn = 1
		else:
			# ATTN, no check imposed. If NaN, crash.
			max = float(a)

sdir = os.popen('ls -l /var/spool/mail').readlines()

for l in sdir[1:]:
	line = split(l)
	user = strip(line[8])
	size = str(int(strip(line[4]))/1000000.)
	if float(size) > max:
		print ljust(user+' :',20), rjust(size,12)
		if warn:
			f = open(body,'w')
			f.write( txt % (size,size))		
			os.system('mail -s '+subject+user+' -b aide < '+body)
			print 'Mail sent to '+user+' because of ' + size