old gnuviechadmin version that is not developed anymore
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# -*- coding: UTF-8 -*-
#
# Copyright (C) 2007 by Jan Dittberner.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
#
# Version: $Id$
import crypt, crack, random
def generatepassword(minlength = 8, maxlength = 12):
"""Generates a random password with a length between the given
minlength and maxlength values."""
pwchars = []
for pair in (('0', '9'), ('A', 'Z'), ('a', 'z')):
pwchars.extend(range(ord(pair[0]), ord(pair[1])))
for char in "-+/*_@":
pwchars.append(ord(char))
return "".join([chr(letter) for letter in \
random.sample(pwchars,
random.randint(minlength, maxlength))])
def checkpassword(password):
"""Checks the password with cracklib. The password is returned if
it is good enough. Otherwise None is returned."""
try:
return crack.VeryFascistCheck(password)
except ValueError, ve:
print "Weak password:", ve
return None
def md5_crypt_password(password):
"""Hashes the given password with MD5 and a random salt value."""
salt = "".join([chr(letter) for letter in \
random.sample(range(ord('a'), ord('z')), 8)])
return crypt.crypt(password, '$1$' + salt)
def get_pw_tuple(password = None):
"""Gets a valid tuple consisting of a password and a md5 hash of the
password. If a password is given it is checked and if it is too weak
replaced by a generated one."""
while password == None or checkpassword(password) == None:
password = generatepassword()
return (password, md5_crypt_password(password))