Sunil Mohan Adapa cc365fb2eb config: Hide time zone not-set option normally
- After a time zone is set, don't show the option 'No time zone set' any
  more.

- Change the label to 'no time zone set'

- Update the help text to 'time zone' instead of 'timezone'.
2015-07-23 08:58:30 +05:30

229 lines
7.5 KiB
Python

#
# This file is part of Plinth.
#
# 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/>.
#
"""
Plinth module for configuring timezone, hostname etc.
"""
from django import forms
from django.contrib import messages
from django.core import validators
from django.template.response import TemplateResponse
from gettext import gettext as _
import logging
import re
import socket
from plinth import actions
from plinth import cfg
from plinth.signals import pre_hostname_change, post_hostname_change
from plinth.signals import domainname_change
LOGGER = logging.getLogger(__name__)
def get_hostname():
"""Return the hostname"""
return socket.gethostname()
def get_domainname():
"""Return the domainname"""
fqdn = socket.getfqdn()
return '.'.join(fqdn.split('.')[1:])
class TrimmedCharField(forms.CharField):
"""Trim the contents of a CharField"""
def clean(self, value):
"""Clean and validate the field value"""
if value:
value = value.strip()
return super(TrimmedCharField, self).clean(value)
class ConfigurationForm(forms.Form):
"""Main system configuration form"""
time_zone = forms.ChoiceField(
label=_('Time Zone'),
help_text=_('Set your time zone to get accurate timestamps. \
This will set the systemwide time zone.'))
# We're more conservative than RFC 952 and RFC 1123
hostname = TrimmedCharField(
label=_('Hostname'),
help_text=_('Your hostname is the local name by which other machines \
on your LAN can reach you. It must be alphanumeric, start with an alphabet \
and must not be greater than 63 characters in length.'),
validators=[
validators.RegexValidator(r'^[a-zA-Z][a-zA-Z0-9]{,62}$',
_('Invalid hostname'))])
domainname = TrimmedCharField(
label=_('Domain Name'),
help_text=_('Your domain name is the global name by which other \
machines on the Internet can reach you. It must consist of alphanumeric words \
separated by dots.'),
required=False,
validators=[
validators.RegexValidator(r'^[a-zA-Z][a-zA-Z0-9.]*$',
_('Invalid domain name'))])
def __init__(self, *args, **kwargs):
# pylint: disable-msg=E1101, W0233
forms.Form.__init__(self, *args, **kwargs)
timezone_options = [(zone, zone)
for zone in self.get_time_zones()]
# Show not-set option only when time zone is not set
if self.initial.get('time_zone') == 'none':
timezone_options.insert(0, ('none', _('-- no time zone set --')))
self.fields['time_zone'].choices = timezone_options
@staticmethod
def get_time_zones():
"""Return list of available time zones"""
time_zones = []
for line in open('/usr/share/zoneinfo/zone.tab'):
if re.match(r'^(#|\s*$)', line):
continue
try:
time_zones.append(line.split()[2])
except IndexError:
pass
time_zones.sort()
return time_zones
def init():
"""Initialize the module"""
menu = cfg.main_menu.get('system:index')
menu.add_urlname(_('Configure'), 'glyphicon-cog', 'config:index', 10)
def index(request):
"""Serve the configuration form"""
status = get_status()
form = None
if request.method == 'POST':
form = ConfigurationForm(request.POST, initial=status,
prefix='configuration')
# pylint: disable-msg=E1101
if form.is_valid():
_apply_changes(request, status, form.cleaned_data)
status = get_status()
form = ConfigurationForm(initial=status,
prefix='configuration')
else:
form = ConfigurationForm(initial=status, prefix='configuration')
return TemplateResponse(request, 'config.html',
{'title': _('General Configuration'),
'form': form})
def get_status():
"""Return the current status"""
return {'hostname': get_hostname(),
'domainname': get_domainname(),
'time_zone': get_current_timezone()}
def get_current_timezone():
"""Get current timezone"""
timezone = open('/etc/timezone').read().rstrip()
return timezone or 'none'
def _apply_changes(request, old_status, new_status):
"""Apply the form changes"""
if old_status['hostname'] != new_status['hostname']:
try:
set_hostname(new_status['hostname'])
except Exception as exception:
messages.error(request, _('Error setting hostname: %s') %
exception)
else:
messages.success(request, _('Hostname set'))
else:
messages.info(request, _('Hostname is unchanged'))
if old_status['domainname'] != new_status['domainname']:
try:
set_domainname(new_status['domainname'])
except Exception as exception:
messages.error(request, _('Error setting domain name: %s') %
exception)
else:
messages.success(request, _('Domain name set'))
else:
messages.info(request, _('Domain name is unchanged'))
if old_status['time_zone'] != new_status['time_zone'] and \
new_status['time_zone'] != 'none':
try:
actions.superuser_run('timezone-change', [new_status['time_zone']])
except Exception as exception:
messages.error(request, _('Error setting time zone: %s') %
exception)
else:
messages.success(request, _('Time zone set'))
else:
messages.info(request, _('Time zone is unchanged'))
def set_hostname(hostname):
"""Sets machine hostname to hostname"""
old_hostname = get_hostname()
# Hostname should be ASCII. If it's unicode but passed our
# valid_hostname check, convert to ASCII.
hostname = str(hostname)
pre_hostname_change.send_robust(sender='config',
old_hostname=old_hostname,
new_hostname=hostname)
LOGGER.info('Changing hostname to - %s', hostname)
actions.superuser_run('hostname-change', [hostname])
post_hostname_change.send_robust(sender='config',
old_hostname=old_hostname,
new_hostname=hostname)
def set_domainname(domainname):
"""Sets machine domain name to domainname"""
old_domainname = get_domainname()
# Domain name should be ASCII. If it's unicode, convert to ASCII.
domainname = str(domainname)
LOGGER.info('Changing domain name to - %s', domainname)
actions.superuser_run('domainname-change', [domainname])
domainname_change.send_robust(sender='config',
old_domainname=old_domainname,
new_domainname=domainname)