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Diffstat (limited to 'source4/scripting/python/samba/netcmd/pwsettings.py')
| -rwxr-xr-x | source4/scripting/python/samba/netcmd/pwsettings.py | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/netcmd/pwsettings.py b/source4/scripting/python/samba/netcmd/pwsettings.py new file mode 100755 index 0000000000..724c28e5f9 --- /dev/null +++ b/source4/scripting/python/samba/netcmd/pwsettings.py @@ -0,0 +1,187 @@ +#!/usr/bin/python +# +# Sets password settings. +# (Password complexity, history length, minimum password length, the minimum +# and maximum password age) on a Samba4 server +# +# Copyright Matthias Dieter Wallnoefer 2009 +# Copyright Andrew Kroeger 2009 +# Copyright Jelmer Vernooij 2009 +# +# 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 3 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, see <http://www.gnu.org/licenses/>. +# + +import sys + +import samba.getopt as options +import optparse +import ldb + +from samba.auth import system_session +from samba.samdb import SamDB +from samba.dcerpc.samr import DOMAIN_PASSWORD_COMPLEX +from samba.netcmd import Command, CommandError, Option + +class cmd_pwsettings(Command): + """Sets password settings. + + Password complexity, history length, minimum password length, the minimum + and maximum password age) on a Samba4 server. + """ + + synopsis = "(show | set <options>)" + + takes_optiongroups = [ + options.SambaOptions, + options.VersionOptions, + options.CredentialsOptions, + ] + + takes_options = [ + Option("-H", help="LDB URL for database or target server", type=str), + Option("--quiet", help="Be quiet", action="store_true"), + Option("--complexity", type="choice", choices=["on","off","default"], + help="The password complexity (on | off | default). Default is 'on'"), + Option("--history-length", + help="The password history length (<integer> | default). Default is 24.", type=str), + Option("--min-pwd-length", + help="The minimum password length (<integer> | default). Default is 7.", type=str), + Option("--min-pwd-age", + help="The minimum password age (<integer in days> | default). Default is 0.", type=str), + Option("--max-pwd-age", + help="The maximum password age (<integer in days> | default). Default is 43.", type=str), + ] + + def run(self, H=None, min_pwd_age=None, max_pwd_age=None, quiet=False, + complexity=None, history_length=None, min_pwd_length=None, + username=None, simple_bind_dn=None, no_pass=None, workgroup=None, + kerberos=None, configfile=None, password=None): + lp = sambaopts.get_loadparm() + creds = credopts.get_credentials(lp) + + if H is not None: + url = H + else: + url = lp.get("sam database") + + samdb = SamDB(url=url, session_info=system_session(), credentials=creds, lp=lp) + + domain_dn = SamDB.domain_dn(samdb) + res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE, + attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength", "minPwdAge", + "maxPwdAge"]) + assert(len(res) == 1) + try: + pwd_props = int(res[0]["pwdProperties"][0]) + pwd_hist_len = int(res[0]["pwdHistoryLength"][0]) + min_pwd_len = int(res[0]["minPwdLength"][0]) + # ticks -> days + min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24)) + max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24)) + except KeyError: + raise CommandError("Could not retrieve password properties!") + + if args[0] == "show": + self.message("Password informations for domain '%s'" % domain_dn) + self.message("") + if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0: + self.message("Password complexity: on") + else: + self.message("Password complexity: off") + self.message("Password history length: %d" % pwd_hist_len) + self.message("Minimum password length: %d" % min_pwd_len) + self.message("Minimum password age (days): %d" % min_pwd_age) + self.message("Maximum password age (days): %d" % max_pwd_age) + elif args[0] == "set": + msgs = [] + m = ldb.Message() + m.dn = ldb.Dn(samdb, domain_dn) + + if complexity is not None: + if complexity == "on" or complexity == "default": + pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX + msgs.append("Password complexity activated!") + elif complexity == "off": + pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX) + msgs.append("Password complexity deactivated!") + + m["pwdProperties"] = ldb.MessageElement(str(pwd_props), + ldb.FLAG_MOD_REPLACE, "pwdProperties") + + if history_length is not None: + if history_length == "default": + pwd_hist_len = 24 + else: + pwd_hist_len = int(history_length) + + if pwd_hist_len < 0 or pwd_hist_len > 24: + raise CommandError("Password history length must be in the range of 0 to 24!") + + m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len), + ldb.FLAG_MOD_REPLACE, "pwdHistoryLength") + msgs.append("Password history length changed!") + + if min_pwd_length is not None: + if min_pwd_length == "default": + min_pwd_len = 7 + else: + min_pwd_len = int(min_pwd_length) + + if min_pwd_len < 0 or min_pwd_len > 14: + raise CommandError("Minimum password length must be in the range of 0 to 14!") + + m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len), + ldb.FLAG_MOD_REPLACE, "minPwdLength") + msgs.append("Minimum password length changed!") + + if min_pwd_age is not None: + if min_pwd_age == "default": + min_pwd_age = 0 + else: + min_pwd_age = int(min_pwd_age) + + if min_pwd_age < 0 or min_pwd_age > 998: + raise CommandError("Minimum password age must be in the range of 0 to 998!") + + # days -> ticks + min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7)) + + m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks), + ldb.FLAG_MOD_REPLACE, "minPwdAge") + msgs.append("Minimum password age changed!") + + if max_pwd_age is not None: + if max_pwd_age == "default": + max_pwd_age = 43 + else: + max_pwd_age = int(max_pwd_age) + + if max_pwd_age < 0 or max_pwd_age > 999: + raise CommandError("Maximum password age must be in the range of 0 to 999!") + + # days -> ticks + max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7)) + + m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks), + ldb.FLAG_MOD_REPLACE, "maxPwdAge") + msgs.append("Maximum password age changed!") + + if max_pwd_age > 0 and min_pwd_age >= max_pwd_age: + raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age)) + + samdb.modify(m) + msgs.append("All changes applied successfully!") + self.message("\n".join(msgs)) + else: + raise CommandError("Wrong argument '" + args[0] + "'!") |