# Authors:
#   Thierry Bordaz <tbordaz@redhat.com>
#
# Copyright (C) 2014  Red Hat
# see file 'COPYING' for use and warranty information
#
# 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 posixpath
from copy import deepcopy

import six

from ipalib import api, errors
from ipalib import DeprecatedParam
from ipalib.plugable import Registry
from ipalib.plugins.baseldap import (
    LDAPCreate,
    LDAPQuery,
    DN,
    entry_to_dict,
    pkey_to_value)
from ipalib.plugins import baseldap
from ipalib.plugins.baseuser import (
    baseuser,
    baseuser_add,
    baseuser_del,
    baseuser_mod,
    baseuser_find,
    baseuser_show,
    NO_UPG_MAGIC,
    baseuser_pwdchars,
    baseuser_output_params,
    status_baseuser_output_params,
    baseuser_add_manager,
    baseuser_remove_manager)
from ipalib.request import context
from ipalib import _, ngettext
from ipalib import output
from ipaplatform.paths import paths
from ipapython.ipautil import ipa_generate_password
from ipalib.capabilities import client_has_capability

if six.PY3:
    unicode = str

__doc__ = _("""
Stageusers

Manage stage user entries.

Stage user entries are directly under the container: "cn=stage users,
cn=accounts, cn=provisioning, SUFFIX".
User can not authenticate with those entries (even if the entries
contain credentials) and are candidate to become Active entries.

Active user entries are Posix users directly under the container: "cn=accounts, SUFFIX".
User can authenticate with Active entries, at the condition they have
credentials

Delete user entries are Posix users directly under the container: "cn=deleted users,
cn=accounts, cn=provisioning, SUFFIX".
User can not authenticate with those entries (even if the entries contain credentials)

The stage user container contains entries
    - created by 'stageuser-add' commands that are Posix users
    - created by external provisioning system

A valid stage user entry MUST:
    - entry RDN is 'uid'
    - ipaUniqueID is 'autogenerate'

IPA supports a wide range of username formats, but you need to be aware of any
restrictions that may apply to your particular environment. For example,
usernames that start with a digit or usernames that exceed a certain length
may cause problems for some UNIX systems.
Use 'ipa config-mod' to change the username format allowed by IPA tools.


EXAMPLES:

 Add a new stageuser:
   ipa stageuser-add --first=Tim --last=User --password tuser1

 Add a stageuser from the Delete container
   ipa stageuser-add  --first=Tim --last=User --from-delete tuser1

""")

register = Registry()


stageuser_output_params = baseuser_output_params

status_output_params = status_baseuser_output_params

@register()
class stageuser(baseuser):
    """
    Stage User object
    A Stage user is not an Active user and can not be used to bind with.
    Stage container is: cn=staged users,cn=accounts,cn=provisioning,SUFFIX
    Stage entry conforms the schema
    Stage entry RDN attribute is 'uid'
    Stage entry are disabled (nsAccountLock: True) through cos
    """

    container_dn              = baseuser.stage_container_dn
    label                     = _('Stage Users')
    label_singular            = _('Stage User')
    object_name               = _('stage user')
    object_name_plural        = _('stage users')
    managed_permissions       = {
        #
        # Stage container
        #
        # Allowed to create stage user
        'System: Add Stage User': {
            'ipapermlocation': DN(baseuser.stage_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.stage_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=*)'},
            'ipapermright': {'add'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators', 'Stage User Provisioning'},
        },
        # Allow to read kerberos/password
        'System: Read Stage User password': {
           'ipapermlocation': DN(baseuser.stage_container_dn, api.env.basedn),
           'ipapermbindruletype': 'permission',
           'ipapermtarget': DN('uid=*', baseuser.stage_container_dn, api.env.basedn),
           'ipapermtargetfilter': {'(objectclass=*)'},
           'ipapermright': {'read', 'search', 'compare'},
           'ipapermdefaultattr': {
               'userPassword', 'krbPrincipalKey',
           },
           'default_privileges': {'Stage User Administrators'},
        },
        # Allow to update stage user
        'System: Modify Stage User': {
            'ipapermlocation': DN(baseuser.stage_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.stage_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=*)'},
            'ipapermright': {'write'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to delete stage user
        'System: Remove Stage User': {
            'ipapermlocation': DN(baseuser.stage_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.stage_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=*)'},
            'ipapermright': {'delete'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to read any attributes of stage users
        'System: Read Stage Users': {
            'ipapermlocation': DN(baseuser.stage_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.stage_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=*)'},
            'ipapermright': {'read', 'search', 'compare'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        #
        # Preserve container
        #
        # Allow to read Preserved User
        'System: Read Preserved Users': {
            'ipapermlocation': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=posixaccount)'},
            'ipapermright': {'read', 'search', 'compare'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to update Preserved User
        'System: Modify Preserved Users': {
            'ipapermlocation': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=posixaccount)'},
            'ipapermright': {'write'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to reset Preserved User password
        'System: Reset Preserved User password': {
            'ipapermlocation': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=posixaccount)'},
            'ipapermright': {'read', 'search', 'write'},
            'ipapermdefaultattr': {
                'userPassword', 'krbPrincipalKey','krbPasswordExpiration','krbLastPwdChange'
            },
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to delete preserved user
        'System: Remove preserved User': {
            'ipapermlocation': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=*)'},
            'ipapermright': {'delete'},
            'ipapermdefaultattr': {'*'},
            'default_privileges': {'Stage User Administrators'},
        },
        #
        # Active container
        #
        # Stage user administrators need write right on RDN when
        # the active user is deleted (preserved)
        'System: Modify User RDN': {
            'ipapermlocation': DN(baseuser.active_container_dn, api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtarget': DN('uid=*', baseuser.active_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=posixaccount)'},
            'ipapermright': {'write'},
            'ipapermdefaultattr': {'uid'},
            'default_privileges': {'Stage User Administrators'},
        },
        #
        # Cross containers autorization
        #
        # Allow to move active user to preserve container (user-del --preserve)
        # Note: targetfilter is the target parent container
        'System: Preserve User': {
            'ipapermlocation': DN(api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtargetfrom': DN(baseuser.active_container_dn, api.env.basedn),
            'ipapermtargetto': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=nsContainer)'},
            'ipapermright': {'moddn'},
            'default_privileges': {'Stage User Administrators'},
        },
        # Allow to move preserved user to active container (user-undel)
        # Note: targetfilter is the target parent container
        'System: Undelete User': {
            'ipapermlocation': DN(api.env.basedn),
            'ipapermbindruletype': 'permission',
            'ipapermtargetfrom': DN(baseuser.delete_container_dn, api.env.basedn),
            'ipapermtargetto': DN(baseuser.active_container_dn, api.env.basedn),
            'ipapermtargetfilter': {'(objectclass=nsContainer)'},
            'ipapermright': {'moddn'},
            'default_privileges': {'Stage User Administrators'},
        },
     }

@register()
class stageuser_add(baseuser_add):
    __doc__ = _('Add a new stage user.')

    msg_summary = _('Added stage user "%(value)s"')

    has_output_params = baseuser_add.has_output_params + stageuser_output_params

    takes_options = LDAPCreate.takes_options + (
        DeprecatedParam('from_delete?',
            doc=_('Create Stage user in from a delete user'),
            cli_name='from_delete',
            default=False,
        ),
    )

    def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
        assert isinstance(dn, DN)

        # then givenname and sn are required attributes
        if 'givenname' not in entry_attrs:
            raise errors.RequirementError(name='givenname', error=_('givenname is required'))

        if 'sn' not in entry_attrs:
            raise errors.RequirementError(name='sn', error=_('sn is required'))

        # we don't want an user private group to be created for this user
        # add NO_UPG_MAGIC description attribute to let the DS plugin know
        entry_attrs.setdefault('description', [])
        entry_attrs['description'].append(NO_UPG_MAGIC)

        # uidNumber/gidNumber
        entry_attrs.setdefault('uidnumber', baseldap.DNA_MAGIC)
        entry_attrs.setdefault('gidnumber', baseldap.DNA_MAGIC)

        if not client_has_capability(
                options['version'], 'optional_uid_params'):
            # https://fedorahosted.org/freeipa/ticket/2886
            # Old clients say 999 (OLD_DNA_MAGIC) when they really mean
            # "assign a value dynamically".
            OLD_DNA_MAGIC = 999
            if entry_attrs.get('uidnumber') == OLD_DNA_MAGIC:
                entry_attrs['uidnumber'] = baseldap.DNA_MAGIC
            if entry_attrs.get('gidnumber') == OLD_DNA_MAGIC:
                entry_attrs['gidnumber'] = baseldap.DNA_MAGIC


        # Check the lenght of the RDN (uid) value
        config = ldap.get_ipa_config()
        if 'ipamaxusernamelength' in config:
            if len(keys[-1]) > int(config.get('ipamaxusernamelength')[0]):
                raise errors.ValidationError(
                    name=self.obj.primary_key.cli_name,
                    error=_('can be at most %(len)d characters') % dict(
                        len = int(config.get('ipamaxusernamelength')[0])
                    )
                )
        default_shell = config.get('ipadefaultloginshell', [paths.SH])[0]
        entry_attrs.setdefault('loginshell', default_shell)
        # hack so we can request separate first and last name in CLI
        full_name = '%s %s' % (entry_attrs['givenname'], entry_attrs['sn'])
        entry_attrs.setdefault('cn', full_name)

        # Homedirectory
        # (order is : option, placeholder (TBD), CLI default value (here in config))
        if 'homedirectory' not in entry_attrs:
            # get home's root directory from config
            homes_root = config.get('ipahomesrootdir', [paths.HOME_DIR])[0]
            # build user's home directory based on his uid
            entry_attrs['homedirectory'] = posixpath.join(homes_root, keys[-1])

        # Kerberos principal
        entry_attrs.setdefault('krbprincipalname', '%s@%s' % (entry_attrs['uid'], api.env.realm))


        # If requested, generate a userpassword
        if 'userpassword' not in entry_attrs and options.get('random'):
            entry_attrs['userpassword'] = ipa_generate_password(baseuser_pwdchars)
            # save the password so it can be displayed in post_callback
            setattr(context, 'randompassword', entry_attrs['userpassword'])

        # Check the email or create it
        if 'mail' in entry_attrs:
            entry_attrs['mail'] = self.obj.normalize_and_validate_email(entry_attrs['mail'], config)
        else:
            # No e-mail passed in. If we have a default e-mail domain set
            # then we'll add it automatically.
            defaultdomain = config.get('ipadefaultemaildomain', [None])[0]
            if defaultdomain:
                entry_attrs['mail'] = self.obj.normalize_and_validate_email(keys[-1], config)

        # If the manager is defined, check it is a ACTIVE user to validate it
        if 'manager' in entry_attrs:
            entry_attrs['manager'] = self.obj.normalize_manager(entry_attrs['manager'], self.obj.active_container_dn)

        if ('objectclass' in entry_attrs
            and 'userclass' in entry_attrs
            and 'ipauser' not in entry_attrs['objectclass']):
            entry_attrs['objectclass'].append('ipauser')

        if 'ipatokenradiusconfiglink' in entry_attrs:
            cl = entry_attrs['ipatokenradiusconfiglink']
            if cl:
                if 'objectclass' not in entry_attrs:
                    _entry = ldap.get_entry(dn, ['objectclass'])
                    entry_attrs['objectclass'] = _entry['objectclass']

                if 'ipatokenradiusproxyuser' not in entry_attrs['objectclass']:
                    entry_attrs['objectclass'].append('ipatokenradiusproxyuser')

                answer = self.api.Object['radiusproxy'].get_dn_if_exists(cl)
                entry_attrs['ipatokenradiusconfiglink'] = answer

        return dn

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        assert isinstance(dn, DN)
        config = ldap.get_ipa_config()

        # Fetch the entry again to update memberof, mep data, etc updated
        # at the end of the transaction.
        newentry = ldap.get_entry(dn, ['*'])
        entry_attrs.update(newentry)

        if options.get('random', False):
            try:
                entry_attrs['randompassword'] = unicode(getattr(context, 'randompassword'))
            except AttributeError:
                # if both randompassword and userpassword options were used
                pass

        self.post_common_callback(ldap, dn, entry_attrs, **options)
        return dn

@register()
class stageuser_del(baseuser_del):
    __doc__ = _('Delete a stage user.')

    msg_summary = _('Deleted stage user "%(value)s"')

@register()
class stageuser_mod(baseuser_mod):
    __doc__ = _('Modify a stage user.')

    msg_summary = _('Modified stage user "%(value)s"')

    has_output_params = baseuser_mod.has_output_params + stageuser_output_params

    def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
        self.pre_common_callback(ldap, dn, entry_attrs, **options)
        # Make sure it is not possible to authenticate with a Stage user account
        if 'nsaccountlock' in entry_attrs:
            del entry_attrs['nsaccountlock']
        return dn

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        self.post_common_callback(ldap, dn, entry_attrs, **options)
        if 'nsaccountlock' in entry_attrs:
            del entry_attrs['nsaccountlock']
        return dn

@register()
class stageuser_find(baseuser_find):
    __doc__ = _('Search for stage users.')

    member_attributes = ['memberof']
    has_output_params = baseuser_find.has_output_params + stageuser_output_params

    def pre_callback(self, ldap, filter, attrs_list, base_dn, scope, *keys, **options):
        assert isinstance(base_dn, DN)

        container_filter = "(objectclass=posixaccount)"
        # provisioning system can create non posixaccount stage user
        # but then they have to create inetOrgPerson stage user
        stagefilter = filter.replace(container_filter,
                                     "(|%s(objectclass=inetOrgPerson))" % container_filter)
        self.log.debug("stageuser_find: pre_callback new filter=%s " % (stagefilter))
        return (stagefilter, base_dn, scope)

    def post_callback(self, ldap, entries, truncated, *args, **options):
        if options.get('pkey_only', False):
            return truncated
        self.post_common_callback(ldap, entries, lockout=True, **options)
        return truncated

    msg_summary = ngettext(
        '%(count)d user matched', '%(count)d users matched', 0
    )

@register()
class stageuser_show(baseuser_show):
    __doc__ = _('Display information about a stage user.')

    has_output_params = baseuser_show.has_output_params + stageuser_output_params

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        entry_attrs['nsaccountlock'] = True
        self.post_common_callback(ldap, dn, entry_attrs, **options)
        return dn


@register()
class stageuser_activate(LDAPQuery):
    __doc__ = _('Activate a stage user.')

    msg_summary = _('Activate a stage user "%(value)s"')

    preserved_DN_syntax_attrs = ('manager', 'managedby', 'secretary')

    searched_operational_attributes = ['uidNumber', 'gidNumber', 'nsAccountLock', 'ipauniqueid']

    has_output = output.standard_entry
    has_output_params = LDAPQuery.has_output_params + stageuser_output_params

    def _check_validy(self, dn, entry):
        if dn[0].attr != 'uid':
            raise errors.ValidationError(
                        name=self.obj.primary_key.cli_name,
                        error=_('Entry RDN is not \'uid\''),
                        )
        for attr in ('cn', 'sn', 'uid'):
            if attr not in entry:
                raise errors.ValidationError(
                            name=self.obj.primary_key.cli_name,
                            error=_('Entry has no \'%(attribute)s\'') % dict(attribute=attr),
                            )

    def _build_new_entry(self, ldap, dn, entry_from, entry_to):
        config = ldap.get_ipa_config()

        if 'uidnumber' not in entry_from:
            entry_to['uidnumber'] = baseldap.DNA_MAGIC
        if 'gidnumber' not in entry_from:
            entry_to['gidnumber'] = baseldap.DNA_MAGIC
        if 'homedirectory' not in entry_from:
            # get home's root directory from config
            homes_root = config.get('ipahomesrootdir', [paths.HOME_DIR])[0]
            # build user's home directory based on his uid
            entry_to['homedirectory'] = posixpath.join(homes_root, dn[0].value)
        if 'ipamaxusernamelength' in config:
            if len(dn[0].value) > int(config.get('ipamaxusernamelength')[0]):
                raise errors.ValidationError(
                    name=self.obj.primary_key.cli_name,
                    error=_('can be at most %(len)d characters') % dict(
                        len = int(config.get('ipamaxusernamelength')[0])
                    )
                )
        if 'loginshell' not in entry_from:
            default_shell = config.get('ipadefaultloginshell', [paths.SH])[0]
            if default_shell:
                entry_to.setdefault('loginshell', default_shell)

        if 'givenname' not in entry_from:
            entry_to['givenname'] = entry_from['cn'][0].split()[0]

        if 'krbprincipalname' not in entry_from:
            entry_to['krbprincipalname'] = '%s@%s' % (entry_from['uid'][0], api.env.realm)

    def __dict_new_entry(self, *args, **options):
        ldap = self.obj.backend

        entry_attrs = self.args_options_2_entry(*args, **options)
        entry_attrs = ldap.make_entry(DN(), entry_attrs)

        self.process_attr_options(entry_attrs, None, args, options)

        entry_attrs['objectclass'] = deepcopy(self.obj.object_class)

        if self.obj.object_class_config:
            config = ldap.get_ipa_config()
            entry_attrs['objectclass'] = config.get(
                self.obj.object_class_config, entry_attrs['objectclass']
            )

        return(entry_attrs)

    def __merge_values(self, args, options, entry_from, entry_to, attr):
        '''
        This routine merges the values of attr taken from entry_from, into entry_to.
        If attr is a syntax DN attribute, it is replaced by an empty value. It is a preferable solution
        compare to skiping it because the final entry may no longer conform the schema.
        An exception of this is for a limited set of syntax DN attribute that we want to
        preserved (defined in preserved_DN_syntax_attrs)
        see http://www.freeipa.org/page/V3/User_Life-Cycle_Management#Adjustment_of_DN_syntax_attributes
        '''
        if not attr in entry_to:
            if isinstance(entry_from[attr], (list, tuple)):
                # attr is multi value attribute
                entry_to[attr] = []
            else:
                # attr single valued attribute
                entry_to[attr] = None

        # At this point entry_to contains for all resulting attributes
        # either a list (possibly empty) or a value (possibly None)

        for value in entry_from[attr]:
                # merge all the values from->to
                v = self.__value_2_add(args, options, attr, value)
                if (isinstance(v, str) and v in ('', None)) or \
                   (isinstance(v, unicode) and v in (u'', None)):
                    try:
                        v.decode('utf-8')
                        self.log.debug("merge: %s:%r wiped" % (attr, v))
                    except:
                        self.log.debug("merge %s: [no_print %s]" % (attr, v.__class__.__name__))
                        pass
                    if isinstance(entry_to[attr], (list, tuple)):
                        # multi value attribute
                        if v not in entry_to[attr]:
                            # it may has been added before in the loop
                            # so add it only if it not present
                            entry_to[attr].append(v)
                    else:
                        # single value attribute
                        # keep the value defined in staging
                        entry_to[attr] = v
                else:
                    try:
                        v.decode('utf-8')
                        self.log.debug("Add: %s:%r" % (attr, v))
                    except:
                        self.log.debug("Add %s: [no_print %s]" % (attr, v.__class__.__name__))
                        pass
                    if isinstance(entry_to[attr], (list, tuple)):
                        # multi value attribute
                        if attr.lower() == 'objectclass':
                            entry_to[attr] = [oc.lower() for oc in entry_to[attr]]
                            value = value.lower()
                            if value not in entry_to[attr]:
                                entry_to[attr].append(value)
                        else:
                            if value not in entry_to[attr]:
                                entry_to[attr].append(value)
                    else:
                        # single value attribute
                        if value:
                            entry_to[attr] = value

    def __value_2_add(self, args, options, attr, value):
        '''
        If the attribute is NOT syntax DN it returns its value.
        Else it checks if the value can be preserved.
        To be preserved:
            - attribute must be in preserved_DN_syntax_attrs
            - value must be an active user DN (in Active container)
            - the active user entry exists
        '''
        ldap = self.obj.backend

        if ldap.has_dn_syntax(attr):
            if attr.lower() in self.preserved_DN_syntax_attrs:
                # we are about to add a DN syntax value
                # Check this is a valid DN
                if not isinstance(value, DN):
                    return u''

                if not self.obj.active_user(value):
                    return u''

                # Check that this value is a Active user
                try:
                    entry_attrs = self._exc_wrapper(args, options, ldap.get_entry)(value, ['dn'])
                    return value
                except errors.NotFound:
                    return u''
            else:
                return u''
        else:
            return value

    def execute(self, *args, **options):

        ldap = self.obj.backend

        staging_dn = self.obj.get_dn(*args, **options)
        assert isinstance(staging_dn, DN)

        # retrieve the current entry
        try:
            entry_attrs = self._exc_wrapper(args, options, ldap.get_entry)(
                staging_dn, ['*']
            )
        except errors.NotFound:
            self.obj.handle_not_found(*args)
        entry_attrs = dict((k.lower(), v) for (k, v) in entry_attrs.items())

        # Check it does not exist an active entry with the same RDN
        active_dn = DN(staging_dn[0], api.env.container_user, api.env.basedn)
        try:
            test_entry_attrs = self._exc_wrapper(args, options, ldap.get_entry)(
                active_dn, ['dn']
            )
            assert isinstance(staging_dn, DN)
            raise errors.DuplicateEntry(
                message=_('active user with name "%(user)s" already exists') %
                dict(user=args[-1]))
        except errors.NotFound:
            pass

        # Check the original entry is valid
        self._check_validy(staging_dn, entry_attrs)

        # Time to build the new entry
        result_entry = {'dn' : active_dn}
        new_entry_attrs = self.__dict_new_entry()
        for (attr, values) in entry_attrs.items():
            self.__merge_values(args, options, entry_attrs, new_entry_attrs, attr)
            result_entry[attr] = values

        # Allow Managed entry plugin to do its work
        if 'description' in new_entry_attrs and NO_UPG_MAGIC in new_entry_attrs['description']:
            new_entry_attrs['description'].remove(NO_UPG_MAGIC)
            if result_entry['description'] == NO_UPG_MAGIC:
                del result_entry['description']

        for (k, v) in new_entry_attrs.items():
            self.log.debug("new entry: k=%r and v=%r)"  % (k, v))

        self._build_new_entry(ldap, staging_dn, entry_attrs, new_entry_attrs)

        # Add the Active entry
        entry = ldap.make_entry(active_dn, new_entry_attrs)
        self._exc_wrapper(args, options, ldap.add_entry)(entry)

        # Now delete the Staging entry
        try:
            self._exc_wrapper(args, options, ldap.delete_entry)(staging_dn)
        except:
            try:
                self.log.error("Fail to delete the Staging user after activating it %s " % (staging_dn))
                self._exc_wrapper(args, options, ldap.delete_entry)(active_dn)
            except:
                self.log.error("Fail to cleanup activation. The user remains active %s" % (active_dn))
                pass
            raise

        # add the user we just created into the default primary group
        config = ldap.get_ipa_config()
        def_primary_group = config.get('ipadefaultprimarygroup')
        group_dn = self.api.Object['group'].get_dn(def_primary_group)

        # if the user is already a member of default primary group,
        # do not raise error
        # this can happen if automember rule or default group is set
        try:
            ldap.add_entry_to_group(active_dn, group_dn)
        except errors.AlreadyGroupMember:
            pass

        # Now retrieve the activated entry
        result_entry = self._exc_wrapper(args, options, ldap.get_entry)(active_dn)
        result_entry = entry_to_dict(result_entry, **options)
        result_entry['dn'] = active_dn

        return dict(result=result_entry,
                    summary=unicode(_('Stage user %s activated' % staging_dn[0].value)),
                    value=pkey_to_value(args[-1], options))


@register()
class stageuser_add_manager(baseuser_add_manager):
    __doc__ = _("Add a manager to the stage user entry")


@register()
class stageuser_remove_manager(baseuser_remove_manager):
    __doc__ = _("Remove a manager to the stage user entry")