/
pam_exec_add_bareos_user.py
executable file
·145 lines (118 loc) · 4.12 KB
/
pam_exec_add_bareos_user.py
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#!/usr/bin/env python
"""
This script is intended to be integrated with pam_exec into the Linux authentication process.
It can be used to auto-create users that do already exists as PAM users as Bareos users.
Requires Bareos >= 19.2.4.
"""
from __future__ import print_function
import argparse
import bareos.bsock
import bareos.exceptions
import logging
import os
from pprint import pformat
import random
import string
import sys
def check_requirements(director):
min_version = "19.2.4"
logger = logging.getLogger()
logger.debug("checking requirements: start")
try:
result = director.call(".users")
except (bareos.exceptions.Error) as e:
logger.error(
"The .users command is required, but not available: {}".format(str(e))
)
sys.exit(1)
try:
result = director.call("version")
except (bareos.exceptions.Error) as e:
logger.error(
"The version command is required, but not available: {}".format(str(e))
)
sys.exit(1)
version = result["version"]["version"]
if version < min_version:
logger.error(
"Bareos has version {}. However Bareos >= {} is required.".format(
version, min_version
)
)
sys.exit(1)
logger.debug("checking requirements: finish")
def get_user_names(director):
result = director.call(".users")["users"]
users = [i["name"] for i in result]
return users
def does_user_exists(director, username):
return username in get_user_names(director)
def add_user(director, username, profile):
result = director.call(
'configure add user="{username}" profile="{profile}"'.format(
username=username, profile=profile
)
)
try:
if result["configure"]["add"]["name"] != username:
logger.error("Failed to create user {}.".format(username))
# logger.debug(str(result))
return False
except KeyError:
logger.debug("result: {}".format(pformat(result)))
errormessage = pformat(result)
try:
errormessage = "".join(result["error"]["data"]["messages"]["error"])
except KeyError:
pass
print("Failed to add user {}:\n".format(username))
print("{}".format(errormessage))
return False
return True
def getArguments():
argparser = argparse.ArgumentParser(
description="Add a PAM user to Bareos Director."
)
argparser.add_argument(
"-d", "--debug", action="store_true", help="enable debugging output"
)
bareos.bsock.DirectorConsole.argparser_add_default_command_line_arguments(argparser)
argparser.add_argument(
"--username", help="Name of the user to add. Default: content of ENV(PAM_USER)"
)
argparser.add_argument(
"--profile",
default="webui-admin",
help="Bareos Profile for the newly generated user",
)
args = argparser.parse_args()
return args
if __name__ == "__main__":
logging.basicConfig(
format="%(levelname)s %(module)s.%(funcName)s: %(message)s", level=logging.INFO
)
logger = logging.getLogger()
args = getArguments()
if args.debug:
logger.setLevel(logging.DEBUG)
bareos_args = bareos.bsock.DirectorConsole.argparser_get_bareos_parameter(args)
logger.debug("options: %s" % (bareos_args))
try:
director = bareos.bsock.DirectorConsoleJson(**bareos_args)
except (bareos.exceptions.Error) as e:
print(str(e))
sys.exit(1)
logger.debug("authentication successful")
check_requirements(director)
username = os.getenv("PAM_USER", args.username)
profile = getattr(args, "profile", "webui-admin")
if username is None:
logger.error("Failed: username not given.")
sys.exit(1)
if does_user_exists(director, username):
print("Skipped. User {} already exists.".format(username))
sys.exit(0)
if not add_user(director, username, profile):
logger.error("Failed to add user {}.".format(username))
sys.exit(1)
print("Added user {} (with profile {}) to Bareos.".format(username, profile))