#!/usr/pkg/bin/python
"""parse vixie-cron-style /etc/cron.d/* file and run it as specified user

   you should run this file from a "normal" cron job in /var/spool/cron/root
   (every minute).
   """

Copyright = """
    cronparse - run /etc/cron.d/ files on "normal" unix system
    Copyright (C) 2004  John Comeau <jc@jcomeau.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    """
errormessage = "Not all needed libraries found, upgrade or check path"
try:
 True # not defined in older Python releases
except:
 True, False = 1, 0
try:
 import sys, os, types, re, pwd
 sys.path.append(os.sep.join([pwd.getpwuid(os.geteuid())[5], 'lib', 'python']))
 from com.jcomeau import gpl, jclicense
except:
 try:
  sys.stderr.write("%s\n" % errormessage)
 except:
  print errormessage
 raise

# get name this program was called as
self = sys.argv[0].split(os.sep)[-1]
# now get name we gave it when we wrote it
originalself = Copyright.split()[0]

# globals and routines that should be in every program
# (yes, you could import them, but there are problems in that approach too)

def DebugPrint(*whatever):
 pass # defined instead by pytest module, use that for debugging

# other globals, specific to this program
import time
crondir = '/etc/cron.d'
minmax = [[0, 59], [0, 23], [1, 31], [1, 12], [0, 6]]
validpatterns = ['\*', '\*/[0-9]+', '[0-9]+', '([0-9]+,)+[0-9]+']
validpattern = '^(' + '|'.join(validpatterns) + ')$'
unixweekday = [1, 2, 3, 4, 5, 6, 0] # python uses Monday=0, unix uses Sunday=0

def cronparse():
 """main routine, does the job of parsing and excuting crontabs

    from /etc/cron.d/ directory
 """
 try:
  files = os.path.os.listdir(crondir)
 except:
  sys.exit(1)
 ignore, month, day, hour, minute, second, weekday, ignore, ignore = \
  time.localtime()
 weekday = unixweekday[weekday]
 for file in files:
  DebugPrint('%s:' % file)
  crontab = open(os.path.join(crondir, file), "r")
  for line in crontab.readlines():
   try:
    DebugPrint(line)
    items = line.split()
    if len(items) < 7: continue
    for index in range(0, len(items)):
     DebugPrint(items[index])
     if index < 5:
      if not re.compile(validpattern).match(items[index]):
       raise Exception, "no match"
      for 
   except:
    DebugPrint('Continuing past exception')
    continue

if __name__ == '__main__':
 # if this program was imported by another, the above test will fail,
 # and this following code won't be used...
 cronparse()
else:
 # if you want something to be done on import, do it here; otherwise pass
 pass