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https://github.com/freedombox/FreedomBox.git
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82fbbe1fec
- We must assume that apart from Plinth there will be user or user-agent changes to the configuration files. In this case the value may be set something other than '1' day.
133 lines
3.9 KiB
Python
Executable File
133 lines
3.9 KiB
Python
Executable File
#!/usr/bin/python3
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#
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# This file is part of Plinth.
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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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Configures or runs unattended-upgrades
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"""
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import argparse
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import os
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import re
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import subprocess
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CONF_FILE = '/etc/apt/apt.conf.d/50unattended-upgrades'
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AUTO_CONF_FILE = '/etc/apt/apt.conf.d/20auto-upgrades'
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def parse_arguments():
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"""Return parsed command line arguments as dictionary"""
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parser = argparse.ArgumentParser()
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subparsers = parser.add_subparsers(dest='subcommand', help='Sub command')
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# Run unattended-upgrades
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subparsers.add_parser('run', help='Upgrade packages on the system')
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# Check if automatic upgrades are enabled
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subparsers.add_parser('check-auto',
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help='Check if automatic upgrades are enabled')
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# Enable automatic upgrades
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subparsers.add_parser('enable-auto', help='Enable automatic upgrades')
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# Disable automatic upgrades
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subparsers.add_parser('disable-auto', help='Disable automatic upgrades.')
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return parser.parse_args()
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def subcommand_run(_):
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"""Run unattended-upgrades"""
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try:
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setup()
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except FileNotFoundError:
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print('Error: Could not configure unattended-upgrades.')
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return
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try:
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output = subprocess.check_output(['unattended-upgrades', '-v'])
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except subprocess.CalledProcessError as error:
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print('Error: %s', error)
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except FileNotFoundError:
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print('Error: unattended-upgrades is not available.')
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else:
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print('%s', output.decode())
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def subcommand_check_auto(_):
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"""Check if automatic upgrades are enabled"""
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arguments = ['apt-config', 'shell', 'UpdateInterval',
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'APT::Periodic::Update-Package-Lists']
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output = subprocess.check_output(arguments).decode()
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update_interval = 0
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match = re.match(r"UpdateInterval='(.*)'", output)
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if match:
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update_interval = int(match.group(1))
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print(bool(update_interval))
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def subcommand_enable_auto(_):
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"""Enable automatic upgrades"""
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try:
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setup()
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except FileNotFoundError:
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print('Error: Could not configure unattended-upgrades.')
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return
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with open(AUTO_CONF_FILE, 'w') as conffile:
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conffile.write('APT::Periodic::Update-Package-Lists "1";\n')
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conffile.write('APT::Periodic::Unattended-Upgrade "1";\n')
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def subcommand_disable_auto(_):
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"""Disable automatic upgrades"""
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try:
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os.rename(AUTO_CONF_FILE, AUTO_CONF_FILE + '.disabled')
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except FileNotFoundError:
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print('Already disabled.')
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def setup():
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"""Sets unattended-upgrades config to upgrade any package from Debian."""
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with open(CONF_FILE, 'r') as conffile:
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lines = conffile.readlines()
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for line in lines:
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if re.match(r'\s*"o(rigin)?=Debian";', line):
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return # already configured
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with open(CONF_FILE, 'w') as conffile:
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for line in lines:
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conffile.write(line)
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if re.match(r'\s*Unattended-Upgrade::Origins-Pattern\s+{', line):
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conffile.write(' "origin=Debian";\n')
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def main():
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"""Parse arguments and perform all duties"""
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arguments = parse_arguments()
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subcommand = arguments.subcommand.replace('-', '_')
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subcommand_method = globals()['subcommand_' + subcommand]
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subcommand_method(arguments)
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if __name__ == '__main__':
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main()
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