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# -*- coding: utf-8 -*-
#
# Authors:
# Pavel Březina <pbrezina@redhat.com>
#
# Copyright (C) 2018 Red Hat
#
# 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 morerequi 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 argparse
import gettext
_ = gettext.gettext
class Option:
def __init__(self, name, metavar, help, feature, supported):
self.name = name
self.metavar = metavar
self.help = help
self.feature = feature
self.supported = supported
self.value = None
self.from_sysconfig = False
def set(self, new_value):
self.value = new_value
def set_from_sysconfig(self, new_value):
self.set(new_value)
self.from_sysconfig = True
def isset(self):
return self.value is not None
@staticmethod
def Valued(name, metavar, help):
return Option(name, metavar, help, feature=False, supported=True)
@staticmethod
def Switch(name, help):
return Option(name, None, help, feature=False, supported=True)
@staticmethod
def Feature(name, help):
return Option(name, None, help, feature=True, supported=True)
@staticmethod
def UnsupportedValued(name, metavar):
return Option(name, metavar, None, feature=False, supported=False)
@staticmethod
def UnsupportedFeature(name):
return Option(name, None, None, feature=True, supported=False)
@staticmethod
def UnsupportedSwitch(name):
return Option(name, None, None, feature=False, supported=False)
class Options:
List = [
# These options are still supported in authconfig compatibility
# layers. The tool will do its best to translate them to authselect
# call and where needed, it will generate a configuration file.
#
# However, they will just make sure that an authentication against
# expected service is working. They may not result in the exact same
# configuration as authconfig would generate.
Option.Feature("nis", _("NIS for user information by default")),
Option.Valued("nisdomain", _("<domain>"), _("default NIS domain")),
Option.Valued("nisserver", _("<server>"), _("default NIS server")),
Option.Feature("ldap", _("LDAP for user information by default")),
Option.Feature("ldapauth", _("LDAP for authentication by default")),
Option.Valued("ldapserver", _("<server>"), _("default LDAP server hostname or URI")),
Option.Valued("ldapbasedn", _("<dn>"), _("default LDAP base DN")),
Option.Feature("ldaptls", _("use of TLS with LDAP (RFC-2830)")),
Option.Feature("ldapstarttls", _("use of TLS for identity lookups with LDAP (RFC-2830)")),
Option.Feature("rfc2307bis", _("use of RFC-2307bis schema for LDAP user information lookups")),
Option.Feature("smartcard", _("authentication with smart card by default")),
Option.Valued("smartcardaction", _("<0=Lock|1=Ignore>"), _("action to be taken on smart card removal")),
Option.Feature("requiresmartcard", _("require smart card for authentication by default")),
Option.Feature("fingerprint", _("authentication with fingerprint readers by default")),
Option.Feature("krb5", _("Kerberos authentication by default")),
Option.Valued("krb5kdc", _("<server>"), _("default Kerberos KDC")),
Option.Valued("krb5adminserver", _("<server>"), _("default Kerberos admin server")),
Option.Valued("krb5realm", _("<realm>"), _("default Kerberos realm")),
Option.Feature("krb5kdcdns", _("use of DNS to find Kerberos KDCs")),
Option.Feature("krb5realmdns", _("use of DNS to find Kerberos realms")),
Option.Feature("winbind", _("winbind for user information by default")),
Option.Feature("winbindauth", _("winbind for authentication by default")),
Option.Valued("winbindjoin", _("<Administrator>"), _("join the winbind domain or ads realm now as this administrator")),
Option.Feature("winbindkrb5", _("Kerberos 5 for authenticate with winbind")),
Option.Valued("smbworkgroup", _("<workgroup>"), _("workgroup authentication servers are in")),
Option.Feature("sssd", _("SSSD for user information by default with manually managed configuration")),
Option.Feature("sssdauth", _("SSSD for authentication by default with manually managed configuration")),
Option.Feature("cachecreds", _("caching of user credentials in SSSD by default")),
Option.Feature("pamaccess", _("check of access.conf during account authorization")),
Option.Feature("mkhomedir", _("creation of home directories for users on their first login")),
Option.Feature("faillock", _("account locking in case of too many consecutive authentication failures")),
Option.Valued("passminlen", _("<number>"), _("minimum length of a password")),
Option.Valued("passminclass", _("<number>"), _("minimum number of character classes in a password")),
Option.Valued("passmaxrepeat", _("<number>"), _("maximum number of same consecutive characters in a password")),
Option.Valued("passmaxclassrepeat", _("<number>"), _("maximum number of consecutive characters of same class in a password")),
Option.Feature("reqlower", _("require at least one lowercase character in a password")),
Option.Feature("requpper", _("require at least one uppercase character in a password")),
Option.Feature("reqdigit", _("require at least one digit in a password")),
Option.Feature("reqother", _("require at least one other character in a password")),
# Program options
Option.Switch("nostart", _("do not start/stop services")),
Option.Switch("updateall", _("update all configuration files")),
Option.Switch("update", _("the same as --updateall")),
Option.Switch("kickstart", _("the same as --updateall")),
# Hidden compat tool option, useful for testing. No changes to the
# system will be done, they will be printed.
Option.Switch("test-call", argparse.SUPPRESS),
# Unsupported program options but we have to react somehow when set
Option.UnsupportedSwitch("test"),
Option.UnsupportedSwitch("probe"),
Option.UnsupportedValued("savebackup", _("<name>")),
Option.UnsupportedValued("restorebackup", _("<name>")),
Option.UnsupportedSwitch("restorelastbackup"),
# These options are no longer supported in authconfig compatibility
# layers and will produce warning when used. They will not affect
# the system.
Option.UnsupportedFeature("cache"),
Option.UnsupportedFeature("ecryptfs"),
Option.UnsupportedFeature("shadow"),
Option.UnsupportedSwitch("useshadow"),
Option.UnsupportedFeature("md5"),
Option.UnsupportedSwitch("usemd5"),
Option.UnsupportedValued("passalgo", _("<descrypt|bigcrypt|md5|sha256|sha512>")),
Option.UnsupportedValued("ldaploadcacert", _("<URL>")),
Option.UnsupportedValued("smartcardmodule", _("<module>")),
Option.UnsupportedValued("smbsecurity", _("<user|server|domain|ads>")),
Option.UnsupportedValued("smbrealm", _("<realm>")),
Option.UnsupportedValued("smbservers", _("<servers>")),
Option.UnsupportedValued("smbidmaprange", _("<lowest-highest>")),
Option.UnsupportedValued("smbidmapuid", _("<lowest-highest>")),
Option.UnsupportedValued("smbidmapgid", _("<lowest-highest>")),
Option.UnsupportedValued("winbindseparator", _("<\\>")),
Option.UnsupportedValued("winbindtemplatehomedir", _("</home/%D/%U>")),
Option.UnsupportedValued("winbindtemplateshell", _("</bin/false>")),
Option.UnsupportedFeature("winbindusedefaultdomain"),
Option.UnsupportedFeature("winbindoffline"),
Option.UnsupportedFeature("preferdns"),
Option.UnsupportedFeature("forcelegacy"),
Option.UnsupportedFeature("locauthorize"),
Option.UnsupportedFeature("sysnetauth"),
Option.UnsupportedValued("faillockargs", _("<options>")),
]
Map = {
# These options were use with autodetection of pam_cracklib
# and pam_passwdqc. However, authselect supports only pam_pwquality.
# "USEPWQUALITY" : "",
# "USEPASSWDQC" : "",
"USEFAILLOCK": "faillock",
"FAILLOCKARGS": "faillockargs",
"USELDAP": "ldap",
"USENIS": "nis",
"USEECRYPTFS": "ecryptfs",
"USEWINBIND": "winbind",
"WINBINDKRB5": "winbindkrb5",
"USESSSD": "sssd",
"USEKERBEROS": "krb5",
"USELDAPAUTH": "ldapauth",
"USESMARTCARD": "smartcard",
"FORCESMARTCARD": "requiresmartcard",
"USEFPRINTD": "fingerprint",
"PASSWDALGORITHM": "passalgo",
"USEMD5": "md5",
"USESHADOW": "shadow",
"USEWINBINDAUTH": "winbindauth",
"USESSSDAUTH": "sssdauth",
"USELOCAUTHORIZE": "locauthorize",
"USEPAMACCESS": "pamaccess",
"USEMKHOMEDIR": "mkhomedir",
"USESYSNETAUTH": "sysnetauth",
"FORCELEGACY": "forcelegacy",
"CACHECREDENTIALS": "cachecreds",
}
def __init__(self):
self.options = {}
for option in self.List:
self.options[option.name] = option
def parse(self):
parser = argparse.ArgumentParser(description='Authconfig Compatibility Tool.')
parsers = {
'supported': parser.add_argument_group(_('These options have a compatibility layer')),
'unsupported': parser.add_argument_group(_('These options are no longer supported and have no effect'))
}
for option in self.List:
group = 'supported' if option.supported else 'unsupported'
self.add_option(parsers[group], option)
cmdline = parser.parse_args()
for name, option in self.options.items():
value = getattr(cmdline, name)
option.set(value)
# usemd5 and useshadow are equivalent to enablemd5 and enableshadow
if not self.isset('md5') and self.isset('usemd5'):
self.set('md5', self.get('usemd5'))
if not self.isset('shadow') and self.isset('useshadow'):
self.set('shadow', self.get('useshadow'))
# ldapstarttls is equivalent to ldaptls
if self.isset('ldapstarttls') and not self.isset('ldaptls'):
self.set('ldaptls', self.get('ldapstarttls'))
def applysysconfig(self, sysconfig):
for name, option in self.Map.items():
if not self.isset(option):
self.options[option].set_from_sysconfig(sysconfig.get(name))
def updatesysconfig(self, sysconfig):
for name, option in self.Map.items():
if self.isset(option):
sysconfig.set(name, self.get(option))
def get(self, name):
return self.options[name].value
def set(self, name, value):
self.options[name].set(value)
def isset(self, name):
return self.options[name].isset()
def getBool(self, name):
value = self.get(name)
if value is None or not value:
return False
return True
def getTrueOrNone(self, name):
value = self.get(name)
if value is None or not value:
return None
return True
def getSetButUnsupported(self):
options = []
for option in Options.List:
if option.supported:
continue
if not option.isset():
continue
if option.from_sysconfig:
continue
name = option.name
if option.feature:
name = "enable" + name if option.value else "disable" + name
options.append(name)
return options
def add_option(self, parser, option):
if option.metavar is not None:
self.add_valued(parser, option)
elif option.feature:
self.add_feature(parser, option)
else:
self.add_switch(parser, option)
def add_valued(self, parser, option):
parser.add_argument("--" + option.name,
action='store',
help=option.help,
dest=option.name,
metavar=option.metavar)
def add_switch(self, parser, option):
parser.add_argument("--" + option.name,
action='store_const',
const=True,
help=option.help,
dest=option.name)
def add_feature(self, parser, option):
help_enable = None
help_disable = None
if option.help is not None:
help_enable = _("enable") + " " + option.help
help_disable = _("disable") + " " + option.help
parser.add_argument("--enable" + option.name,
action='store_const',
const=True,
help=help_enable,
dest=option.name)
parser.add_argument("--disable" + option.name,
action='store_const',
const=False,
help=help_disable,
dest=option.name)