#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk 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 in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# tails. You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.

# This check verifies a given NFS export is registered with mountd.
# Optionally we can add tracking of allowed clients and filesystem ID.

# Agent info
# [['/mirrored/data/recording', '172.0.0.0/255.0.0.0']]

def inventory_nfsexports(checkname, info):
    # reminder to self: inventorize the exported fs, and maybe even the fs id.
    # but do not inventorize the allowed clients unless i'm really sure that
    # it's not bugged for "features" like multiple different option exports of
    # same FS.
    inventory = []
    for line in info:
        # will not inventorize unless there is SOME export at inventory time.
        if line[0].startswith("/"):
            inventory.append((line[0], None))

    return inventory


def check_nfsexports(item, _no_params, info):
    # if the agent returned an empty list then it found entries in /etc/exports
    # but apparently no daemons were running.
    if len(info) == 0:
        return (2, "exports defined but no exports found in export list. Daemons might not be working")

    # otherwise lets see if our export exists.
    for line in info:
        exported_path = line[0]
        if exported_path == item:
            return (0, "export is active")
    return (2, "export not found in export list")

check_info["nfsexports"] = {
    'check_function':          check_nfsexports,
    'inventory_function':      inventory_nfsexports,
    'service_description':     'NFS export %s',
}
