#!/usr/bin/python3 # -*- coding: utf-8 -*- # input-remapper - GUI for device specific keyboard mappings # Copyright (C) 2022 sezanzeb # # This file is part of input-remapper. # # input-remapper is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # input-remapper 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 General Public License for more details. # # You should have received a copy of the GNU General Public License # along with input-remapper. If not, see . """Control the dbus service from the command line.""" import os import grp import sys import argparse import logging import subprocess from inputremapper.logger import logger, update_verbosity, log_info, add_filehandler from inputremapper.config import config # import inputremapper modules as late as possible to make sure the correct # log level is applied before anything is logged AUTOLOAD = 'autoload' START = 'start' STOP = 'stop' STOP_ALL = 'stop-all' HELLO = 'hello' # internal stuff that the gui uses START_DAEMON = 'start-daemon' HELPER = 'helper' def run(cmd): """Run and log a command.""" logger.info('Running `%s`...', cmd) code = os.system(cmd) if code != 0: logger.error('Failed. exit code %d', code) def group_exists(name): """Check if a group with that name exists.""" try: grp.getgrnam(name) return True except KeyError: return False COMMANDS = [AUTOLOAD, START, STOP, HELLO, STOP_ALL] INTERNALS = [START_DAEMON, HELPER] def utils(options): """Listing names, tasks that don't require a running daemon.""" if options.list_devices: logger.setLevel(logging.ERROR) from inputremapper.groups import groups for group in groups: print(group.key) if options.key_names: from inputremapper.system_mapping import system_mapping print('\n'.join(system_mapping.list_names())) def communicate(options, daemon): """Commands that require a running daemon""" # import stuff late to make sure the correct log level is applied # before anything is logged from inputremapper.groups import groups from inputremapper.paths import USER def require_group(): if options.device is None: logger.error('--device missing') sys.exit(1) if options.device.startswith('/dev'): group = groups.find(path=options.device) else: group = groups.find(key=options.device) if group is None: logger.error( 'Device "%s" is unknown or not an appropriate input device', options.device ) sys.exit(1) return group if daemon is None: # probably broken tests logger.error('Daemon missing') sys.exit(1) if options.config_dir is not None: path = os.path.abspath(os.path.expanduser(os.path.join( options.config_dir, 'config.json' ))) if not os.path.exists(path): logger.error('"%s" does not exist', path) sys.exit(1) logger.info('Using config from "%s" instead', path) config.load_config(path) if USER != 'root': # Might be triggered by udev, so skip the root user. # This will also refresh the config of the daemon if the user changed # it in the meantime. # config_dir is either the cli arg or the default path in home config_dir = os.path.dirname(config.path) daemon.set_config_dir(config_dir) if options.command == AUTOLOAD: # if device was specified, autoload for that one. if None autoload # for all devices. if options.device is None: logger.info('Autoloading all') # timeout is not documented, for more info see # https://github.com/LEW21/pydbus/blob/master/pydbus/proxy_method.py daemon.autoload(timeout=10) else: group = require_group() logger.info('Asking daemon to autoload for %s', options.device) daemon.autoload_single(group.key, timeout=2) if options.command == START: group = require_group() logger.info( 'Starting injection: "%s", "%s"', options.device, options.preset ) daemon.start_injecting(group.key, options.preset) if options.command == STOP: group = require_group() daemon.stop_injecting(group.key) if options.command == STOP_ALL: daemon.stop_all() if options.command == HELLO: response = daemon.hello('hello') logger.info('Daemon answered with "%s"', response) def internals(options): """Methods that are needed to get the gui to work and that require root. input-remapper-control should be started with sudo or pkexec for this. """ debug = ' -d' if options.debug else '' if options.command == HELPER: cmd = f'input-remapper-helper{debug}' elif options.command == START_DAEMON: cmd = f'input-remapper-service --hide-info{debug}' else: return # daemonize cmd = f'{cmd} &' os.system(cmd) def systemd_finished(): """Check if systemd finished booting.""" try: systemd_analyze = subprocess.run(['systemd-analyze'], stdout=subprocess.PIPE) except FileNotFoundError: # probably not systemd, lets assume true to not block input-remapper for good # on certain installations return True if 'finished' in systemd_analyze.stdout.decode(): return True return False def main(options): if options.debug: update_verbosity(True) add_filehandler('/var/log/input-remapper-control') if options.version: log_info() return logger.debug('Call for "%s"', sys.argv) from inputremapper.paths import USER boot_finished = systemd_finished() is_root = USER == "root" is_autoload = options.command == AUTOLOAD config_dir_set = options.config_dir is not None if is_autoload and not boot_finished and is_root and not config_dir_set: # this is probably happening during boot time and got # triggered by udev. There is no need to try to inject anything if the # service doesn't know where to look for a config file. This avoids a lot # of confusing service logs. And also avoids potential for problems when # input-remapper-control stresses about evdev, dbus and multiprocessing already # while the system hasn't even booted completely. logger.warning('Skipping autoload command without a logged in user') return if options.command is not None: if options.command in INTERNALS: internals(options) elif options.command in COMMANDS: from inputremapper.daemon import Daemon daemon = Daemon.connect(fallback=False) communicate(options, daemon) else: logger.error('Unknown command "%s"', options.command) else: utils(options) if options.command: logger.info('Done') if __name__ == '__main__': parser = argparse.ArgumentParser() parser.add_argument( '--command', action='store', dest='command', help=( 'Communicate with the daemon. Available commands are start, ' 'stop, autoload, hello or stop-all' ), default=None, metavar='NAME' ) parser.add_argument( '--config-dir', action='store', dest='config_dir', help=( 'path to the config directory containing config.json, ' 'xmodmap.json and the presets folder. ' 'defaults to ~/.config/input-remapper/' ), default=None, metavar='PATH', ) parser.add_argument( '--preset', action='store', dest='preset', help='The filename of the preset without the .json extension.', default=None, metavar='NAME', ) parser.add_argument( '--device', action='store', dest='device', help='One of the device keys from --list-devices', default=None, metavar='NAME' ) parser.add_argument( '--list-devices', action='store_true', dest='list_devices', help='List available device keys and exit', default=False ) parser.add_argument( '--symbol-names', action='store_true', dest='key_names', help='Print all available names for the mapping', default=False ) parser.add_argument( '-d', '--debug', action='store_true', dest='debug', help='Displays additional debug information', default=False ) parser.add_argument( '-v', '--version', action='store_true', dest='version', help='Print the version and exit', default=False ) main(parser.parse_args(sys.argv[1:]))