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2f82112bb3
This creates a new custom attribute, memberofindirect_[plugin]. Using this you can tell the difference between being an actual memberof another entry and being a memberof as the result if inheritence. This is particularly useful when trying to remove members of an entry, you can only remove direct members. I had to add a couple of short sleep calls to make things work a little better. The memberof plugin runs as a postop and we have no way of knowing when it has done its work. If we don't pause we may show some stale data that memberof hasn't updated yet. .3 seconds is an arbitrary choice. ticket 966
349 lines
11 KiB
Python
349 lines
11 KiB
Python
# Authors:
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# Rob Crittenden <rcritten@redhat.com>
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# Pavel Zuna <pzuna@redhat.com>
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#
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# Copyright (C) 2009 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Groups of users
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Manage groups of users. By default, new groups are POSIX groups. You
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can add the --nonposix to the group-add command to mark a new group
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as non-POSIX, and you can use the same argument to the group-mod command
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to convert a non-POSIX group to a POSIX group. POSIX groups cannot be
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converted to non-POSIX groups.
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Every group must have a description.
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POSIX groups must have a Group ID number (GID). Changing a GID is
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supported but can have impact on your file permissions. It is not necessary
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to supply a GID when creating a group. IPA will generate one automatically
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if it is not provided.
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EXAMPLES:
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Add a new group:
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ipa group-add --desc='local administrators' localadmins
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Add a new non-POSIX group:
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ipa group-add --nonposix --desc='remote administrators' remoteadmins
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Convert a non-POSIX group to posix:
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ipa group-mod --posix remoteadmins
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Add a new POSIX group with a specific Group ID number:
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ipa group-add --gid=500 --desc='unix admins' unixadmins
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Add a new POSIX group and let IPA assign a Group ID number:
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ipa group-add --desc='printer admins' printeradmins
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Remove a group:
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ipa group-del unixadmins
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To add the "remoteadmins" group to the "localadmins" group:
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ipa group-add-member --groups=remoteadmins localadmins
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Add a list of users to the "localadmins" group:
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ipa group-add-member --users=test1,test2 localadmins
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Remove a user from the "localadmins" group:
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ipa group-remove-member --users=test2 localadmins
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Display information about a named group.
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ipa group-show localadmins
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"""
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from ipalib import api
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from ipalib import Int, Str
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from ipalib.plugins.baseldap import *
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from ipalib import _, ngettext
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class group(LDAPObject):
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"""
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Group object.
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"""
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container_dn = api.env.container_group
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object_name = 'group'
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object_name_plural = 'groups'
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object_class = ['ipausergroup']
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object_class_config = 'ipagroupobjectclasses'
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possible_objectclasses = ['posixGroup', 'mepManagedEntry']
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search_attributes_config = 'ipagroupsearchfields'
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default_attributes = [
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'cn', 'description', 'gidnumber', 'member', 'memberof',
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'memberindirect', 'memberofindirect',
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]
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uuid_attribute = 'ipauniqueid'
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attribute_members = {
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'member': ['user', 'group'],
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'memberof': ['group', 'netgroup', 'role',],
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'memberindirect': ['user', 'group', 'netgroup', 'role'],
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'memberofindirect': ['group', 'netgroup', 'role'],
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}
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rdnattr = 'cn'
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label = _('User Groups')
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takes_params = (
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Str('cn',
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pattern='^[a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,252}[a-zA-Z0-9_.$-]?$',
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pattern_errmsg='may only include letters, numbers, _, -, . and $',
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maxlength=255,
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cli_name='group_name',
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label=_('Group name'),
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primary_key=True,
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normalizer=lambda value: value.lower(),
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),
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Str('description',
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cli_name='desc',
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label=_('Description'),
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doc=_('Group description'),
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),
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Int('gidnumber?',
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cli_name='gid',
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label=_('GID'),
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doc=_('GID (use this option to set it manually)'),
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),
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)
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api.register(group)
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class group_add(LDAPCreate):
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"""
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Create a new group.
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"""
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msg_summary = _('Added group "%(value)s"')
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takes_options = LDAPCreate.takes_options + (
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Flag('nonposix',
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cli_name='nonposix',
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doc=_('Create as a non-POSIX group?'),
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default=False,
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),
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)
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def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
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if not options['nonposix']:
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entry_attrs['objectclass'].append('posixgroup')
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if not 'gidnumber' in options:
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entry_attrs['gidnumber'] = 999
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return dn
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api.register(group_add)
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class group_del(LDAPDelete):
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"""
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Delete group.
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"""
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msg_summary = _('Deleted group "%(value)s"')
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def pre_callback(self, ldap, dn, *keys, **options):
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config = ldap.get_ipa_config()[1]
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def_primary_group = config.get('ipadefaultprimarygroup', '')
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def_primary_group_dn = group_dn = self.obj.get_dn(def_primary_group)
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if dn == def_primary_group_dn:
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raise errors.DefaultGroupError()
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group_attrs = self.obj.methods.show(
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self.obj.get_primary_key_from_dn(dn), all=True
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)['result']
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if 'mepmanagedby' in group_attrs:
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raise errors.ManagedGroupError()
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return dn
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def post_callback(self, ldap, dn, *keys, **options):
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try:
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api.Command['pwpolicy_del'](keys[-1])
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except errors.NotFound:
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pass
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return True
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api.register(group_del)
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class group_mod(LDAPUpdate):
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"""
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Modify a group.
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"""
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msg_summary = _('Modified group "%(value)s"')
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takes_options = LDAPUpdate.takes_options + (
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Flag('posix',
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cli_name='posix',
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doc=_('change to a POSIX group'),
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),
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)
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def pre_callback(self, ldap, dn, entry_attrs, *keys, **options):
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if options['posix'] or 'gidnumber' in options:
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(dn, old_entry_attrs) = ldap.get_entry(dn, ['objectclass'])
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if 'posixgroup' in old_entry_attrs['objectclass']:
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if options['posix']:
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raise errors.AlreadyPosixGroup()
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else:
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old_entry_attrs['objectclass'].append('posixgroup')
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entry_attrs['objectclass'] = old_entry_attrs['objectclass']
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if not 'gidnumber' in options:
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entry_attrs['gidnumber'] = 999
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return dn
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api.register(group_mod)
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class group_find(LDAPSearch):
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"""
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Search for groups.
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"""
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member_attributes = ['member', 'memberof']
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msg_summary = ngettext(
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'%(count)d group matched', '%(count)d groups matched', 0
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)
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takes_options = LDAPSearch.takes_options + (
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Flag('private',
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cli_name='private',
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doc=_('search for private groups'),
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),
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)
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def pre_callback(self, ldap, filter, attrs_list, base_dn, scope, *args, **options):
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# if looking for private groups, we need to create a new search filter,
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# because private groups have different object classes
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if options['private']:
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# filter based on options, oflt
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search_kw = self.args_options_2_entry(**options)
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search_kw['objectclass'] = ['posixGroup', 'mepManagedEntry']
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oflt = ldap.make_filter(search_kw, rules=ldap.MATCH_ALL)
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# filter based on 'criteria' argument
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search_kw = {}
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config = ldap.get_ipa_config()[1]
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attrs = config.get(self.obj.search_attributes_config, [])
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if len(attrs) == 1 and isinstance(attrs[0], basestring):
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search_attrs = attrs[0].split(',')
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for a in search_attrs:
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search_kw[a] = args[-1]
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cflt = ldap.make_filter(search_kw, exact=False)
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filter = ldap.combine_filters((oflt, cflt), rules=ldap.MATCH_ALL)
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return (filter, base_dn, scope)
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api.register(group_find)
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class group_show(LDAPRetrieve):
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"""
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Display information about a named group.
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"""
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api.register(group_show)
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class group_add_member(LDAPAddMember):
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"""
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Add members to a group.
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"""
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api.register(group_add_member)
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class group_remove_member(LDAPRemoveMember):
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"""
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Remove members from a group.
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"""
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api.register(group_remove_member)
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class group_detach(LDAPQuery):
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"""
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Detach a managed group from a user
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"""
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has_output = output.standard_value
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msg_summary = _('Detached group "%(value)s" from user "%(value)s"')
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def execute(self, *keys, **options):
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"""
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This requires updating both the user and the group. We first need to
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verify that both the user and group can be updated, then we go
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about our work. We don't want a situation where only the user or
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group can be modified and we're left in a bad state.
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"""
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ldap = self.obj.backend
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group_dn = self.obj.get_dn(*keys, **options)
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user_dn = self.api.Object['user'].get_dn(*keys)
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try:
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(user_dn, user_attrs) = ldap.get_entry(user_dn)
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except errors.NotFound:
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self.obj.handle_not_found(*keys)
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is_managed = self.obj.has_objectclass(user_attrs['objectclass'], 'mepmanagedentry')
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if (not ldap.can_write(user_dn, "objectclass") or
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not (ldap.can_write(user_dn, "mepManagedEntry")) and is_managed):
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raise errors.ACIError(info=_('not allowed to modify user entries'))
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(group_dn, group_attrs) = ldap.get_entry(group_dn)
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is_managed = self.obj.has_objectclass(group_attrs['objectclass'], 'mepmanagedby')
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if (not ldap.can_write(group_dn, "objectclass") or
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not (ldap.can_write(group_dn, "mepManagedBy")) and is_managed):
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raise errors.ACIError(info=_('not allowed to modify group entries'))
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objectclasses = user_attrs['objectclass']
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try:
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i = objectclasses.index('mepOriginEntry')
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del objectclasses[i]
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update_attrs = {'objectclass': objectclasses, 'mepManagedEntry': None}
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ldap.update_entry(user_dn, update_attrs)
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except ValueError:
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# Somehow the user isn't managed, let it pass for now. We'll
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# let the group throw "Not managed".
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pass
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(group_dn, group_attrs) = ldap.get_entry(group_dn)
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objectclasses = group_attrs['objectclass']
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try:
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i = objectclasses.index('mepManagedEntry')
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except ValueError:
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# this should never happen
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raise errors.NotFound(reason=_('Not a managed group'))
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del objectclasses[i]
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# Make sure the resulting group has the default group objectclasses
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config = ldap.get_ipa_config()[1]
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def_objectclass = config.get(
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self.obj.object_class_config, objectclasses
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)
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objectclasses = list(set(def_objectclass + objectclasses))
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update_attrs = {'objectclass': objectclasses, 'mepManagedBy': None}
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ldap.update_entry(group_dn, update_attrs)
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return dict(
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result=True,
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value=keys[0],
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)
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api.register(group_detach)
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