/usr/share/plinth/actions/ssh is in plinth 0.13.1+ds-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #!/usr/bin/python3
#
# This file is part of Plinth.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
Configuration helper for SSH server.
"""
import argparse
import os
import pwd
import shutil
import stat
import subprocess
import sys
def parse_arguments():
"""Return parsed command line arguments as dictionary."""
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(dest='subcommand', help='Sub command')
get_keys = subparsers.add_parser('get-keys',
help='Get SSH authorized keys')
get_keys.add_argument('--username')
set_keys = subparsers.add_parser('set-keys',
help='Set SSH authorized keys')
set_keys.add_argument('--username')
set_keys.add_argument('--keys')
return parser.parse_args()
def get_user_homedir(username):
"""Return the home dir of a user by looking up in password database."""
try:
return pwd.getpwnam(username).pw_dir
except KeyError as exception:
print('Username not found')
sys.exit(1)
def subcommand_get_keys(arguments):
"""Get SSH authorized keys."""
user = arguments.username
path = os.path.join(get_user_homedir(user), '.ssh', 'authorized_keys')
try:
with open(path, 'r') as file_handle:
print(file_handle.read())
except FileNotFoundError:
pass
def subcommand_set_keys(arguments):
"""Set SSH authorized keys."""
user = arguments.username
ssh_folder = os.path.join(get_user_homedir(user), '.ssh')
key_file_path = os.path.join(ssh_folder, 'authorized_keys')
subprocess.check_call(['mkhomedir_helper', user])
if not os.path.exists(ssh_folder):
os.makedirs(ssh_folder)
shutil.chown(ssh_folder, user, 'users')
with open(key_file_path, 'w') as file_handle:
file_handle.write(arguments.keys)
shutil.chown(key_file_path, user, 'users')
os.chmod(key_file_path, stat.S_IRUSR | stat.S_IWUSR)
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()
|