#!/usr/bin/python
#
# (c) Michael Honkoop <mhonkoop@comsolve.nl>

# License: GNU General Public License v2

# Version 0.1
# - Initial release
# Version 0.2
# - refined routines to cover output more accurately.


# A similar check is available in this repository written in bash (edir-version.sh)
#
# If you want more then just a version-check on eDirectory, consider switching to the plugin/special agent for eDirectory.

# This check should be placed in /usr/lib/check_mk_agent/local and made executable with `chmod +x edir-version.py`
# The script assumes that you have exported the environment variables when installing eDirectory, if not it will fail/not get detected on discovery.

import subprocess
import sys

# The process to be executed
myexec = "ndsd"

# the displayed service in CheckMK
service = "eDirectory"

# Attempt to run the executable, if successful output CheckMK formatted data, if not found return unknown status.
try:
    output = subprocess.check_output(
        [myexec, "--version"],
        stderr=subprocess.STDOUT,
        universal_newlines=True
    )

    output_arr = output.split()

# output status when the executable returns expected result
    if len(output_arr) >= 4:
        print('0 "eDirectory" - Binary Version: {}, DS Version: {}'.format(
            output_arr[2], output_arr[3]
        ))
    else:
        print('3 "eDirectory" - Unable to parse version output')

# Executable not found handling
except FileNotFoundError:
    print('3 "eDirectory" - ndsd executable not found')
    exit()

# Executable exists, but returned an error handling
except subprocess.CalledProcessError as e:
    print('2 "eDirectory" - ndsd returned error: {}'.format(e.returncode))
    exit()

    # Catch unexpected errors
except Exception as e:
    print('3 "eDirectory" - Unexpected error: {}'.format(e))
    exit()