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https://github.com/freedombox/FreedomBox.git
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100 lines
2.8 KiB
Python
Executable File
100 lines
2.8 KiB
Python
Executable File
#!/usr/bin/python3
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""
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Configuration actions for the minidlna server.
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"""
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import argparse
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from tempfile import mkstemp
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from shutil import move
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import subprocess
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from os import fdopen, remove, chmod, stat
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import augeas
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from plinth import action_utils
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from plinth.utils import grep
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CONFIG_PATH = '/etc/minidlna.conf'
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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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subparsers.add_parser('setup', help='Setup SSH server')
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subparsers.add_parser('get-media-dir', help='Get media directory')
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set_media_dir = subparsers.add_parser('set-media-dir',
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help='Set custom media directory')
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set_media_dir.add_argument('--dir')
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subparsers.required = True
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return parser.parse_args()
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def subcommand_setup(arguments):
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"""
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Increase inotify watches per folder to allow minidlna to
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monitor changes in large media-dirs.
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"""
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aug = augeas.Augeas(
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flags=augeas.Augeas.NO_LOAD + augeas.Augeas.NO_MODL_AUTOLOAD)
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aug.set('/augeas/load/Sysctl/lens', 'Sysctl.lns')
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aug.set('/augeas/load/Sysctl/incl[last() + 1]', '/etc/sysctl.conf')
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aug.load()
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aug.set('/files/etc/sysctl.conf/fs.inotify.max_user_watches', '100000')
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aug.save()
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subprocess.run(['sysctl', '--system'], check=True)
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def subcommand_get_media_dir(arguments):
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"""Retrieve media directory from minidlna.conf"""
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line = grep('^media_dir=', CONFIG_PATH)
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print(line[0].split("=")[1])
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def subcommand_set_media_dir(arguments):
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"""Set media directory in minidlna.conf"""
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line = grep('^media_dir=', CONFIG_PATH)[0]
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new_line = 'media_dir=%s\n' % arguments.dir
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replace_in_config_file(CONFIG_PATH, line, new_line)
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if action_utils.service_is_running('minidlna'):
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action_utils.service_restart('minidlna')
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def replace_in_config_file(file_path, pattern, subst):
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"""
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Create a temporary minidlna.conf file,
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replace the media dir config,
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remove original one and move the temporary file.
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Preserve permissions as the original file.
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"""
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temp_file, temp_file_path = mkstemp()
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with fdopen(temp_file, 'w') as new_file:
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with open(file_path) as old_file:
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for line in old_file:
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new_file.write(line.replace(pattern, subst))
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old_st_mode = stat(file_path).st_mode
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remove(file_path)
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move(temp_file_path, file_path)
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chmod(file_path, old_st_mode)
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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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