python/samba/common.py

   1 # Samba common functions
   2 #
   3 # Copyright (C) Matthieu Patou <mat@matws.net>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 from samba.compat import PY3
  20
  21
  22 if PY3:
  23     # cmp() exists only in Python 2
  24     def cmp(a, b):
  25         return (a > b) - (a < b)
  26
  27     raw_input = input
  28
  29
  30 def confirm(msg, forced=False, allow_all=False):
  31     """confirm an action with the user
  32
  33     :param msg: A string to print to the user
  34     :param forced: Are the answer forced
  35     """
  36     if forced:
  37         print("%s [YES]" % msg)
  38         return True
  39
  40     mapping = {
  41         'Y': True,
  42         'YES': True,
  43         '': False,
  44         'N': False,
  45         'NO': False,
  46     }
  47
  48     prompt = '[y/N]'
  49
  50     if allow_all:
  51         mapping['ALL'] = 'ALL'
  52         mapping['NONE'] = 'NONE'
  53         prompt = '[y/N/all/none]'
  54
  55     while True:
  56         v = raw_input(msg + ' %s ' % prompt)
  57         v = v.upper()
  58         if v in mapping:
  59             return mapping[v]
  60         print("Unknown response '%s'" % v)
  61
  62
  63 def normalise_int32(ivalue):
  64     '''normalise a ldap integer to signed 32 bit'''
  65     if int(ivalue) & 0x80000000 and int(ivalue) > 0:
  66         return str(int(ivalue) - 0x100000000)
  67     return str(ivalue)
  68
  69