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re2o/users/management/commands/chsh.py

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Python

# ⁻*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2018 Jean-Baptiste Daval
#
# 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.
import os
import pwd
import sys
from django.core.management.base import BaseCommand, CommandError
from django.db import transaction
from reversion import revisions as reversion
from re2o.script_utils import get_system_user, get_user
from users.models import ListShell, User
class Command(BaseCommand):
help = "Change the default shell of a user."
def add_arguments(self, parser):
parser.add_argument("target_username", nargs="?")
def handle(self, *args, **options):
current_username = get_system_user()
current_user = get_user(current_username)
target_username = options["target_username"] or current_username
target_user = get_user(target_username)
# L'utilisateur n'a pas le droit de changer le shell
ok, msg = target_user.can_change_shell(current_user)
if not ok:
raise CommandError(msg)
shells = ListShell.objects.all()
current_shell = "unknown"
if target_user.shell:
current_shell = target_user.shell.get_pretty_name()
self.stdout.write(
"Choose a shell for the user %s (the current shell is"
" %s):" % (target_user.pseudo, current_shell)
)
for shell in shells:
self.stdout.write(
"%d - %s (%s)" % (shell.id, shell.get_pretty_name(), shell.shell)
)
shell_id = input("Enter a number: ")
try:
shell_id = int(shell_id)
except:
raise CommandError("Invalid choice.")
shell = ListShell.objects.filter(id=shell_id)
if not shell:
raise CommandError("Invalid choice.")
target_user.shell = shell.first()
with transaction.atomic(), reversion.create_revision():
target_user.save()
reversion.set_user(current_user)
reversion.set_comment("Shell changed.")
self.stdout.write(
self.style.SUCCESS(
"Shell changed. The change may take a few minutes to apply."
)
)