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https://github.com/freedombox/FreedomBox.git
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639fd71d88
Closes: #1608 Allow upgrade to any version of 0.7.x series. Use new configuration and apply the two default configuration changes of FreedomBox. Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
145 lines
4.0 KiB
Python
145 lines
4.0 KiB
Python
#
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# This file is part of FreedomBox.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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FreedomBox app to configure a firewall.
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"""
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from django.utils.translation import ugettext_lazy as _
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from plinth import actions
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from plinth import app as app_module
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from plinth import cfg, menu
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from plinth.utils import Version, format_lazy
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from .manifest import backup # noqa, pylint: disable=unused-import
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version = 2
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is_essential = True
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managed_packages = ['firewalld', 'nftables']
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name = _('Firewall')
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description = [
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format_lazy(
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_('Firewall is a security system that controls the incoming and '
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'outgoing network traffic on your {box_name}. Keeping a '
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'firewall enabled and properly configured reduces risk of '
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'security threat from the Internet.'), box_name=cfg.box_name)
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]
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manual_page = 'Firewall'
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_port_details = {}
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app = None
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class FirewallApp(app_module.App):
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"""FreedomBox app for Firewall."""
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app_id = 'firewall'
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def __init__(self):
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"""Create components for the app."""
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super().__init__()
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menu_item = menu.Menu('menu-firewall', name, None, 'fa-shield',
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'firewall:index', parent_url_name='system')
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self.add(menu_item)
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def init():
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"""Initailze firewall module"""
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global app
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app = FirewallApp()
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app.set_enabled(True)
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def setup(helper, old_version=None):
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"""Install and configure the module."""
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helper.install(managed_packages)
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_run(['setup'], superuser=True)
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def force_upgrade(helper, packages):
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"""Force upgrade firewalld to resolve conffile prompts."""
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if 'firewalld' not in packages:
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return False
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# firewalld 0.4.4.6-2 -> 0.6.x
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package = packages['firewalld']
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if Version(package['current_version']) >= Version('0.7') or \
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Version(package['new_version']) < Version('0.7'):
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return False
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helper.install(['firewalld'], force_configuration='new')
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_run(['setup'], superuser=True)
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return True
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def get_enabled_status():
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"""Return whether firewall is enabled"""
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output = _run(['get-status'], superuser=True)
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if not output:
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return False
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else:
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return output.split()[0] == 'running'
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def get_enabled_services(zone):
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"""Return the status of various services currently enabled"""
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output = _run(['get-enabled-services', '--zone', zone], superuser=True)
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return output.split()
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def get_port_details(service_port):
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"""Return the port types and numbers for a service port"""
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try:
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return _port_details[service_port]
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except KeyError:
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output = _run(['get-service-ports', '--service', service_port],
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superuser=True)
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_port_details[service_port] = output.strip()
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return _port_details[service_port]
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def get_interfaces(zone):
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"""Return the list of interfaces in a zone."""
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output = _run(['get-interfaces', '--zone', zone], superuser=True)
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return output.split()
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def add_service(port, zone):
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"""Enable a service in firewall"""
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_run(['add-service', port, '--zone', zone], superuser=True)
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def remove_service(port, zone):
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"""Remove a service in firewall"""
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_run(['remove-service', port, '--zone', zone], superuser=True)
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def _run(arguments, superuser=False):
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"""Run an given command and raise exception if there was an error"""
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command = 'firewall'
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if superuser:
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return actions.superuser_run(command, arguments)
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else:
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return actions.run(command, arguments)
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