Sunil Mohan Adapa e719966c4b
users: Refactor valid user name checking for reuse
- Supress output from getent

- More accurate message
2016-08-12 19:32:19 +05:30

213 lines
8.0 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/>.
#
"""
Forms for first boot module.
"""
import json
import logging
import requests
import subprocess
from django import forms
from django.contrib import auth
from django.contrib import messages
from django.core.exceptions import ValidationError
from django.utils.translation import ugettext as _, ugettext_lazy
from plinth import actions
from plinth import cfg
from plinth.errors import ActionError, DomainRegistrationError
from plinth.modules.pagekite.utils import PREDEFINED_SERVICES, run
from plinth.modules.security import set_restricted_access
from plinth.modules.users.forms import GROUP_CHOICES, ValidNewUsernameCheckMixin
from plinth.utils import format_lazy
logger = logging.getLogger(__name__)
class State1Form(ValidNewUsernameCheckMixin, auth.forms.UserCreationForm):
"""Firstboot state 1: create a new user."""
def __init__(self, *args, **kwargs):
self.request = kwargs.pop('request')
super().__init__(*args, **kwargs)
def save(self, commit=True):
"""Create and log the user in."""
user = super().save(commit=commit)
if commit:
try:
actions.superuser_run(
'ldap',
['create-user', user.get_username()],
input=self.cleaned_data['password1'].encode())
except ActionError:
messages.error(self.request,
_('Creating LDAP user failed.'))
try:
actions.superuser_run(
'ldap',
['add-user-to-group', user.get_username(), 'admin'])
except ActionError:
messages.error(self.request,
_('Failed to add new user to admin group.'))
# Create initial Django groups
for group_choice in GROUP_CHOICES:
auth.models.Group.objects.get_or_create(name=group_choice[0])
admin_group = auth.models.Group.objects.get(name='admin')
admin_group.user_set.add(user)
self.login_user(self.cleaned_data['username'],
self.cleaned_data['password1'])
# Restrict console login to users in admin or sudo group
try:
set_restricted_access(True)
message = _('Console login access restricted to users in '
'"admin" group. This can be configured in '
'security settings.')
messages.success(self.request, message)
except Exception:
messages.error(self.request,
_('Failed to restrict console access.'))
return user
def login_user(self, username, password):
"""Try to login the user with the credentials provided"""
try:
user = auth.authenticate(username=username, password=password)
auth.login(self.request, user)
except Exception:
pass
else:
message = _('User account created, you are now logged in')
messages.success(self.request, message)
class SubdomainWidget(forms.widgets.TextInput):
"""Append the domain to the subdomain bootstrap input field"""
def __init__(self, domain, *args, **kwargs):
"""Intialize the widget by storing the domain value."""
super().__init__(*args, **kwargs)
self.domain = domain
def render(self, *args, **kwargs):
"""Return the HTML for the widget."""
inputfield = super().render(*args, **kwargs)
return """<div class="input-group">
{0}
<span class="input-group-addon">{1}</span>
</div>""".format(inputfield, self.domain)
class State5Form(forms.Form):
"""Set up freedombox.me pagekite subdomain"""
DOMAIN_APPENDIX = '.freedombox.me'
# Webservice url for domain validation and registration
service_url = 'http://freedombox.me/cgi-bin/freedomkite.pl'
code_help_text = format_lazy(
ugettext_lazy('The voucher you received with your {box_name} Danube '
'Edition'), box_name=ugettext_lazy(cfg.box_name))
code = forms.CharField(help_text=code_help_text)
domain = forms.SlugField(label=_('Subdomain'),
widget=SubdomainWidget(domain=DOMAIN_APPENDIX),
help_text=_('The subdomain you want to register'))
def clean_domain(self):
"""Append the domain to the users' subdomain"""
return self.cleaned_data['domain'] + self.DOMAIN_APPENDIX
def clean(self):
"""Validate user input (subdomain and code)"""
cleaned_data = super().clean()
# If the subdomain is wrong, don't look if the domain is
# available
if self.errors:
return cleaned_data
self.domain_already_registered = False
code = cleaned_data.get('code')
domain = cleaned_data.get('domain')
response = requests.get(self.service_url, params={'code': code}).json()
# 1. Code is invalid: {}
if 'domain' not in response:
raise ValidationError(_('This code is not valid'), code='invalid')
# 2. Code is valid, domain registered: {'domain': 'xx.freedombox.me'}
elif response['domain']:
if response['domain'] == domain:
self.domain_already_registered = True
else:
message = _('This code is bound to the domain {domain}.') \
.format(domain=response['domain'])
raise ValidationError(message, code='invalid')
# 3. Code is valid, no domain registered: {'domain': None}
elif response['domain'] is None:
# Make sure that the desired domain is available
data = {'domain': domain}
domain_response = requests.get(self.service_url, params=data)
registered_domain = domain_response.json()['domain']
if registered_domain is not None:
message = _('The requested domain is already registered.')
raise ValidationError(message, code='invalid')
return cleaned_data
def register_domain(self):
"""Register a domain (only if it's not already registered)"""
if self.domain_already_registered:
return
data = {'domain': self.cleaned_data['domain'],
'code': self.cleaned_data['code']}
response = requests.post(self.service_url, data)
if not response.ok:
message = _('Domain registration failed: {response}.').format(
response=response.text)
logger.error(message)
raise DomainRegistrationError(message)
def setup_pagekite(self):
"""Configure and enable PageKite service."""
# Set kite name and secret
run(['set-kite', '--kite-name', self.cleaned_data['domain']],
input=self.cleaned_data['code'].encode())
# Set frontend
run(['set-frontend', '%s:80' % self.cleaned_data['domain']])
# Enable PageKite HTTP + HTTPS service
for service_name in ['http', 'https']:
service = PREDEFINED_SERVICES[service_name]['params']
try:
run(['add-service', '--service', json.dumps(service)])
except ActionError as err:
if 'already exists' not in str(err):
raise
run(['start-and-enable'])