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# samba-tool commands to generate a Certificate Signing Request for a user’s
# certificate
#
# Copyright (C) Catalyst.Net Ltd 2025
#
# This program 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.
#
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from typing import Optional
from cryptography.hazmat.primitives import serialization
import samba.getopt as options
from samba.netcmd import Command, Option
from samba.netcmd import exception_to_command_error
from samba.domain.models import User
from samba.domain.models.exceptions import ModelError
from samba.generate_csr import generate_csr
class cmd_user_generate_csr(Command):
"""Generate a PEM‐encoded Certificate Signing Request for a user."""
synopsis = "%prog <username> <subject_name> <private_key_filename> <output_filename> [options]"
takes_args = ["username", "subject_name", "private_key_filename", "output_filename"]
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"hostopts": options.HostOptions,
}
takes_options = [
Option(
"--private-key-encoding",
default="auto",
choices=("pem", "der", "auto"),
help="Private key encoding (optional)",
),
Option(
"--private-key-pass",
help="Password to decrypt private key (optional)",
),
]
@exception_to_command_error(ValueError, ModelError, FileNotFoundError)
def run(
self,
username: str,
subject_name: str,
private_key_filename: str,
output_filename: str,
*,
hostopts: Optional[options.HostOptions] = None,
sambaopts: Optional[options.SambaOptions] = None,
credopts: Optional[options.CredentialsOptions] = None,
private_key_encoding: Optional[str] = "auto",
private_key_pass: Optional[str] = None,
):
if private_key_encoding == "auto":
private_key_encoding = None
samdb = self.ldb_connect(hostopts, sambaopts, credopts)
user: User = User.find(samdb, username)
csr = generate_csr(
samdb,
user,
subject_name,
private_key_filename,
private_key_encoding=private_key_encoding,
private_key_pass=private_key_pass,
)
serialized = csr.public_bytes(serialization.Encoding.PEM)
with open(output_filename, "wb") as output_file:
_ = output_file.write(serialized)
|
