Backup Python Script

#!/usr/bin/python
import sys
import re
import os
import datetime
import paramiko
import getopt

class mandant_class(object):
 def __init__(self,man,bdir,ldir,cdir):
   self.man = man
   self.cdir = cdir
   self.datei = self.cdir + self.man + ".cfg"
   self.bdir = bdir
   self.ldir = ldir

 def try_open(self):
   if os.path.exists(self.datei):
     self.dat = open(self.datei,"r")
     self.dat_open = True
     return True
   else:
     self.dat_open = False
     return False


 def computer(self):
  self.dat.seek(0)
  comp_array = []
  for line in self.dat:
     compi,dirs = line.split(":")
     comp_array.append(compi)
  return comp_array

 def dirs(self,comp):
   self.dat.seek(0)
   return_value = ""
   for zeile in self.dat:
     line = zeile.rstrip()
     pattern = re.match(comp,line)
     if pattern:
         compi,dirs = line.split(":")
         dir_array = dirs.split(";")
         return_value = dir_array
   return return_value

 def today(self):
    today = datetime.date.today()
    str_today = str(today)
    return str_today

 def source(self,r,v):
    src =  r + ":" + v + "/ "
    return src

 def dest(self,r,v):
    mod_y = v.replace("/","-")
    mod_v = mod_y[1:]
    dst =  self.bdir + self.man + "/" + r + "/" + self.today() + "/" + mod_v
    if not os.path.isdir(dst):
      os.makedirs(dst)
    return dst

 def log(self,r,v):
    mod_y = v.replace("/","-")
    mod_v = mod_y[1:]
    manlogdir = self.ldir + "/" + self.man  + "/" + r + "/" + mod_v + "/"
    if not os.path.isdir(manlogdir):
      os.makedirs(manlogdir)
    return  manlogdir + self.today()

 def ssh_check(self,r):
    client = paramiko.SSHClient()
    client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
    try:
      client.connect(r, username="root",port="8472")
      return True
    except Exception, e:
      return False

 def backup_dirs(self,r):
    for verzeichnis in self.dirs(r):
      if self.ssh_check(r):
        cmd = "rsync -azx " + self.source(r,verzeichnis) + self.dest(r,verzeichnis) + " > " + self.log(r,verzeichnis) + ".0"
      else:
        cmd = "echo ssh error > " + self.log(r,verzeichnis) + ".1"
      print cmd
      #os.system(cmd)

 def list_dirs(self,r):
    for verzeichnis in self.dirs(r):
        cmd = self.source(r,verzeichnis)
        print cmd



 def backup_mandant(self):
  for rechner in self.computer():
     self.backup_dirs(rechner)

 def __del__(self):
  if self.dat_open:
     self.dat.close()



options, mandant = getopt.getopt(sys.argv[1:], 'r:l:' )
if len(mandant) == 0:
  print sys.argv[0] + " (-r rechner|-l rechner)  mandant"
else:
  configdir = "/share/backup/config/"
  configfile = configdir + mandant[0] + ".cfg"
  backupdir  = "/share/backup/"
  logdir = "/var/log/backup"
  x = mandant_class(mandant[0],backupdir,logdir,configdir)
  if x.try_open():
    if  len(options) == 0:
      x.backup_mandant()
    else:
      for opt, arg in options:
        if opt in ('-r'):
          rechner = arg
          x.backup_dirs(rechner)
        elif opt in ('-l'):
          rechner = arg
          x.list_dirs(rechner)
  else:
   print "can't open mandant file"