Nikolas Nyby 5439084c84
Add flake8 to gitlib-ci - closes #58
And fix the rest of the flake8 errors.

Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>
2019-07-25 11:07:06 -07:00

286 lines
8.5 KiB
Python

#
# This file is part of FreedomBox.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
FreedomBox app for radicale.
"""
import logging
import subprocess
from distutils.version import LooseVersion as LV
import augeas
from apt.cache import Cache
from django.utils.translation import ugettext_lazy as _
from plinth import action_utils, actions
from plinth import app as app_module
from plinth import cfg, frontpage, menu
from plinth.daemon import Daemon
from plinth.modules.apache.components import Uwsgi, Webserver
from plinth.modules.firewall.components import Firewall
from plinth.utils import format_lazy
from .manifest import backup, clients # noqa, pylint: disable=unused-import
version = 2
managed_services = ['radicale']
managed_packages = ['radicale', 'uwsgi', 'uwsgi-plugin-python3']
name = _('Radicale')
short_description = _('Calendar and Addressbook')
description = [
format_lazy(
_('Radicale is a CalDAV and CardDAV server. It allows synchronization '
'and sharing of scheduling and contact data. To use Radicale, a '
'<a href="http://radicale.org/clients/">supported client '
'application</a> is needed. Radicale can be accessed by any user '
'with a {box_name} login.'), box_name=_(cfg.box_name)),
_('Radicale provides a basic web interface, which only supports creating '
'new calendars and addressbooks. It does not support adding events or '
'contacts, which must be done using a separate client.'),
]
clients = clients
reserved_usernames = ['radicale']
manual_page = 'Radicale'
logger = logging.getLogger(__name__)
CONFIG_FILE = '/etc/radicale/config'
VERSION_2 = LV('2')
app = None
class RadicaleApp(app_module.App):
"""FreedomBox app for Radicale."""
app_id = 'radicale'
def __init__(self):
"""Create components for the app."""
super().__init__()
menu_item = menu.Menu('menu-radicale', name, short_description,
'radicale', 'radicale:index',
parent_url_name='apps')
self.add(menu_item)
shortcut = frontpage.Shortcut('shortcut-radicale', name,
short_description=short_description,
icon='radicale', url='/radicale/',
clients=clients, login_required=True)
self.add(shortcut)
firewall = Firewall('firewall-radicale', name, ports=['http', 'https'],
is_external=True)
self.add(firewall)
webserver = RadicaleWebserver('webserver-radicale', None)
self.add(webserver)
uwsgi = RadicaleUwsgi('uwsgi-radicale', 'radicale')
self.add(uwsgi)
daemon = RadicaleDaemon('daemon-radicale', managed_services[0])
self.add(daemon)
class RadicaleWebserver(Webserver):
"""Webserver enable/disable behavior specific for radicale."""
@property
def web_name(self):
"""Return web configuration name based on radicale version."""
current_version = get_package_version()
if current_version and current_version < VERSION_2:
return 'radicale-plinth'
return 'radicale2-freedombox'
@web_name.setter
def web_name(self, web_name):
"""Set the web name"""
class RadicaleUwsgi(Uwsgi):
"""uWSGI enable/disable behavior specific for radicale."""
def is_enabled(self):
"""Return whether the uWSGI configuration is enabled if version>=2."""
package_version = get_package_version()
if package_version and package_version >= VERSION_2:
return super().is_enabled()
return True
def enable(self):
"""Enable the uWSGI configuration if version >=2."""
package_version = get_package_version()
if package_version and package_version >= VERSION_2:
actions.superuser_run('radicale', ['fix-collections'])
super().enable()
def disable(self):
"""Disable the uWSGI configuration if version >=2."""
package_version = get_package_version()
if package_version and package_version >= VERSION_2:
super().disable()
class RadicaleDaemon(Daemon):
"""Daemon enable/disable behavior specific for radicale."""
@staticmethod
def _is_old_radicale():
"""Return whether radicale is less than version 2."""
package_version = get_package_version()
return package_version and package_version < VERSION_2
def is_enabled(self):
"""Return whether daemon is enabled if version < 2."""
if self._is_old_radicale():
return super().is_enabled()
return True
def enable(self):
"""Enable the daemon if version < 2."""
if self._is_old_radicale():
super().enable()
else:
super().disable()
def disable(self):
"""Disable the daemon if version < 2."""
if self._is_old_radicale():
super().disable()
def is_running(self):
"""Return whether daemon is enabled if version < 2."""
if self._is_old_radicale():
return super().is_running()
return True
def init():
"""Initialize the radicale module."""
global app
app = RadicaleApp()
setup_helper = globals()['setup_helper']
if setup_helper.get_state() != 'needs-setup' and app.is_enabled():
app.set_enabled(True)
def setup(helper, old_version=None):
"""Install and configure the module."""
if old_version == 1:
# Check that radicale 2.x is available for install.
cache = Cache()
candidate = cache['radicale'].candidate
if candidate < '2':
logger.error('Radicale 2.x is not available to install.')
# Try to upgrade radicale 1.x to 2.x.
helper.call('pre', actions.superuser_run, 'radicale', ['migrate'])
helper.install(managed_packages, force_configuration='new')
# Check that radicale 2.x is installed.
current_version = get_package_version()
if not current_version:
logger.error('Could not determine installed version of radicale.')
elif current_version < VERSION_2:
logger.error('Could not install radicale 2.x.')
# Enable radicale.
helper.call('post', actions.superuser_run, 'radicale', ['setup'])
else:
helper.install(managed_packages)
helper.call('post', actions.superuser_run, 'radicale', ['setup'])
helper.call('post', app.enable)
def get_package_version():
try:
proc = subprocess.run(['radicale', '--version'],
stdout=subprocess.PIPE, check=True)
output = proc.stdout.decode('utf-8')
except subprocess.CalledProcessError:
return None
package_version = str(output.strip())
return LV(package_version)
def enable():
"""Enable the module."""
actions.superuser_run('radicale', ['enable'])
app.enable()
def disable():
"""Disable the module."""
actions.superuser_run('radicale', ['disable'])
app.disable()
def load_augeas():
"""Prepares the augeas."""
aug = augeas.Augeas(
flags=augeas.Augeas.NO_LOAD + augeas.Augeas.NO_MODL_AUTOLOAD)
# INI file lens
aug.set('/augeas/load/Puppet/lens', 'Puppet.lns')
aug.set('/augeas/load/Puppet/incl[last() + 1]', CONFIG_FILE)
aug.load()
return aug
def get_rights_value():
"""Returns the current Rights value."""
aug = load_augeas()
value = aug.get('/files' + CONFIG_FILE + '/rights/type')
current_version = get_package_version()
if current_version and current_version >= VERSION_2:
if value == 'from_file':
# Radicale 2.x default rights file is equivalent to owner_only.
value = 'owner_only'
return value
def diagnose():
"""Run diagnostics and return the results."""
results = []
results.extend(
action_utils.diagnose_url_on_all('https://{host}/radicale',
check_certificate=False))
return results