Sunil Mohan Adapa eada506b23
actions/*: Use SPDX license identifier
Reviewed-by: Veiko Aasa <veiko17@disroot.org>
2020-02-19 14:39:36 +02:00

143 lines
4.6 KiB
Python
Executable File

#!/usr/bin/python3
# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Configuration helper for Tiny Tiny RSS.
"""
import argparse
import os
import subprocess
import augeas
from plinth import action_utils
CONFIG_FILE = '/etc/tt-rss/config.php'
DEFAULT_FILE = '/etc/default/tt-rss'
DATABASE_FILE = '/etc/tt-rss/database.php'
DB_BACKUP_FILE = '/var/lib/plinth/backups-data/ttrss-database.sql'
def parse_arguments():
"""Return parsed command line arguments as dictionary."""
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(dest='subcommand', help='Sub command')
subparsers.add_parser('pre-setup', help='Perform pre-setup operations')
subparsers.add_parser('setup', help='Setup Tiny Tiny RSS configuration')
subparsers.add_parser('enable-api-access', help='Enable Tiny Tiny RSS API')
subparsers.add_parser('dump-database', help='Dump database to file')
subparsers.add_parser('restore-database',
help='Restore database from file')
subparsers.required = True
return parser.parse_args()
def subcommand_pre_setup(_):
"""Preseed debconf values before packages are installed."""
action_utils.debconf_set_selections(
['tt-rss tt-rss/database-type string pgsql'])
def subcommand_setup(_):
"""Setup Tiny Tiny RSS configuration."""
aug = load_augeas()
aug.set('/files' + DEFAULT_FILE + '/DISABLED', '0')
skip_self_url_path_exists = False
for match in aug.match('/files' + CONFIG_FILE + '/define'):
if aug.get(match) == 'SELF_URL_PATH':
aug.set(match + '/value', "'http://localhost/tt-rss/'")
elif aug.get(match) == 'PLUGINS':
aug.set(match + '/value', "'auth_remote, note'")
elif aug.get(match) == '_SKIP_SELF_URL_PATH_CHECKS':
skip_self_url_path_exists = True
aug.set(match + '/value', 'true')
if not skip_self_url_path_exists:
aug.set('/files' + CONFIG_FILE + '/define[last() + 1]',
'_SKIP_SELF_URL_PATH_CHECKS')
aug.set('/files' + CONFIG_FILE + '/define[last()]/value', 'true')
aug.save()
if action_utils.service_is_enabled('tt-rss'):
action_utils.service_restart('tt-rss')
def subcommand_enable_api_access(_):
"""Enable API access so that tt-rss can be accessed through mobile app."""
import psycopg2 # Only available post installation
aug = load_augeas()
def get_value(variable_name):
"""Return the value of a variable from database configuration file."""
return aug.get('/files' + DATABASE_FILE + '/$' + variable_name) \
.strip("'\"")
user = get_value('dbuser')
password = get_value('dbpass')
database = get_value('dbname')
host = get_value('dbserver')
connection = psycopg2.connect(database=database, user=user,
password=password, host=host)
cursor = connection.cursor()
cursor.execute("UPDATE ttrss_prefs SET def_value=true "
"WHERE pref_name='ENABLE_API_ACCESS';")
connection.commit()
connection.close()
def subcommand_dump_database(_):
"""Dump database to file."""
os.makedirs(os.path.dirname(DB_BACKUP_FILE), exist_ok=True)
with open(DB_BACKUP_FILE, 'w') as db_backup_file:
_run_as_postgres(['pg_dump', 'ttrss'], stdout=db_backup_file)
def subcommand_restore_database(_):
"""Restore database from file."""
_run_as_postgres(['dropdb', 'ttrss'])
_run_as_postgres(['createdb', 'ttrss'])
with open(DB_BACKUP_FILE, 'r') as db_restore_file:
_run_as_postgres(['psql', '--dbname', 'ttrss'], stdin=db_restore_file)
def _run_as_postgres(command, stdin=None, stdout=None):
"""Run a command as postgres user."""
command = ['sudo', '--user', 'postgres'] + command
subprocess.run(command, stdin=stdin, stdout=stdout, check=True)
def load_augeas():
"""Initialize Augeas."""
aug = augeas.Augeas(flags=augeas.Augeas.NO_LOAD +
augeas.Augeas.NO_MODL_AUTOLOAD)
aug.set('/augeas/load/Shellvars/lens', 'Shellvars.lns')
aug.set('/augeas/load/Shellvars/incl[last() + 1]', DEFAULT_FILE)
aug.set('/augeas/load/Phpvars/lens', 'Phpvars.lns')
aug.set('/augeas/load/Phpvars/incl[last() + 1]', CONFIG_FILE)
aug.set('/augeas/load/Phpvars/incl[last() + 1]', DATABASE_FILE)
aug.load()
return aug
def main():
"""Parse arguments and perform all duties."""
arguments = parse_arguments()
subcommand = arguments.subcommand.replace('-', '_')
subcommand_method = globals()['subcommand_' + subcommand]
subcommand_method(arguments)
if __name__ == '__main__':
main()