Sunil Mohan Adapa b96d901071
Introduce component architecture and menu component
- Introduce base class for all apps that will contain components. With
  unittests.

- Introduce base classes for components. With unittests.

- Turn Menu class into an app component.

  - Further cleanup Menu class.

  - Update tests.

  - Maintain a global list of menu items and look them up easily. Generalize
    such that subsubmenus can later be merged into Menu class.

  - Cleanup scope of main menu initialization.

  - Use None instead of empty strings for various values. Ensure that
    printing short_description does not show 'None' in output.

  - Use enable/disable instead of promote/demote.

- Use menu component in all apps.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
2019-06-07 11:48:04 -07:00

108 lines
2.9 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 to configure system date and time.
"""
import subprocess
from django.utils.translation import ugettext_lazy as _
from plinth import app as app_module
from plinth import menu
from plinth import service as service_module
from .manifest import backup
version = 2
is_essential = True
managed_services = ['systemd-timesyncd']
managed_packages = []
name = _('Date & Time')
description = [
_('Network time server is a program that maintains the system time '
'in synchronization with servers on the Internet.')
]
manual_page = 'DateTime'
service = None
app = None
class DateTimeApp(app_module.App):
"""FreedomBox app for date and time."""
def __init__(self):
"""Create components for the app."""
super().__init__()
menu_item = menu.Menu('menu-datetime', name, None, 'fa-clock-o',
'datetime:index', parent_url_name='system')
self.add(menu_item)
def init():
"""Intialize the date/time module."""
global app
app = DateTimeApp()
app.set_enabled(True)
global service
setup_helper = globals()['setup_helper']
if setup_helper.get_state() != 'needs-setup':
service = service_module.Service(managed_services[0], name,
is_external=True)
def setup(helper, old_version=None):
"""Install and configure the module."""
global service
if service is None:
service = service_module.Service(managed_services[0], name,
is_external=True)
service.enable()
helper.call('post', service.notify_enabled, None, True)
helper.call('post', app.enable)
def diagnose():
"""Run diagnostics and return the results."""
results = []
results.append(_diagnose_time_synchronized())
return results
def _diagnose_time_synchronized():
"""Check whether time is synchronized to NTP server."""
result = 'failed'
try:
output = subprocess.check_output(
['timedatectl', 'show', '--property=NTPSynchronized', '--value'])
if 'yes' in output.decode():
result = 'passed'
except subprocess.CalledProcessError:
pass
return [_('Time synchronized to NTP server'), result]