wcs/wcs/ctl/delete_tenant.py

119 lines
4.6 KiB
Python

#w.c.s. - web application for online forms
# Copyright (C) 2005-2014 Entr'ouvert
#
# 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, see <http://www.gnu.org/licenses/>.
from __future__ import print_function
import os
import sys
import psycopg2
import psycopg2.errorcodes
from datetime import datetime
from shutil import rmtree
from django.utils import six
from ..qommon.ctl import Command, make_option
class CmdDeleteTenant(Command):
name = 'delete_tenant'
def __init__(self):
Command.__init__(self, [
make_option('--force-drop', action='store_true', default=False,
dest='force_drop'),
])
def execute(self, base_options, sub_options, args):
from .. import publisher
publisher.WcsPublisher.configure(self.config)
pub = publisher.WcsPublisher.create_publisher(
register_tld_names=False)
hostname = args[0]
pub.app_dir = os.path.join(pub.app_dir, hostname)
pub.set_config()
self.delete_tenant(pub, sub_options, args)
def delete_tenant(self, pub, options, args):
if options.force_drop:
rmtree(pub.app_dir)
else:
deletion_date = datetime.now().strftime('%Y%m%d_%H%M%S_%f')
os.rename(pub.app_dir, pub.app_dir + '_removed_%s.invalid' % deletion_date)
# do this only if the wcs has a postgresql configuration
if pub.is_using_postgresql():
postgresql_cfg = {}
for k, v in pub.cfg['postgresql'].items():
if v and isinstance(v, six.string_types):
postgresql_cfg[k] = v
# if there's a createdb-connection-params, we can do a DROP DATABASE with
# the option --force-drop, rename it if not
createdb_cfg = pub.cfg['postgresql'].get('createdb-connection-params', {})
createdb = True
if not createdb_cfg:
createdb_cfg = postgresql_cfg
createdb = False
try:
pgconn = psycopg2.connect(**createdb_cfg)
except psycopg2.Error as e:
print('failed to connect to postgresql (%s)' % psycopg2.errorcodes.lookup(e.pgcode),
file=sys.stderr)
return
pgconn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
cur = pgconn.cursor()
try:
dbname = pub.cfg['postgresql']['database']
if createdb:
if options.force_drop:
cur.execute('DROP DATABASE %s' % dbname)
else:
cur.execute('ALTER DATABASE %s RENAME TO removed_%s_%s' % (dbname,
deletion_date,
dbname))
else:
cur.execute("""SELECT table_name
FROM information_schema.tables
WHERE table_schema = 'public'
AND table_type = 'BASE TABLE'""")
tables_names = [x[0] for x in cur.fetchall()]
if options.force_drop:
for table_name in tables_names:
cur.execute('DROP TABLE %s CASCADE' % table_name)
else:
schema_name = 'removed_%s_%s' % (deletion_date, dbname)
cur.execute("CREATE SCHEMA %s" % schema_name[:63])
for table_name in tables_names:
cur.execute('ALTER TABLE %s SET SCHEMA %s' %
(table_name, schema_name[:63]))
except psycopg2.Error as e:
print('failed to alter database %s: (%s)' % (
createdb_cfg['database'], psycopg2.errorcodes.lookup(e.pgcode)),
file=sys.stderr)
return
cur.close()
CmdDeleteTenant.register()