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check_blue_talon_masking_functions.py
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check_blue_talon_masking_functions.py
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#!/usr/bin/env python
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2016-12-05 16:37:57 +0000 (Mon, 05 Dec 2016)
#
# https://github.com/harisekhon/nagios-plugins
#
# License: see accompanying Hari Sekhon LICENSE file
#
# If you're using my code you're welcome to connect with me on LinkedIn
# and optionally send me feedback to help steer this or other code I publish
#
# https://www.linkedin.com/in/harisekhon
#
"""
Nagios Plugin to check Blue Talon masking functions via the Policy Management server REST API
Currently only determines the number of masking functions, also outputs perfdata.
Warning: the API doesn't expose a count so this program must fetch and count all masking functions
which is an O(n) operation and as such the performance get worse the more masking functions you have.
Optional thresholds may be applied to the number of masking functions
Tested on Blue Talon 2.12.0
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
#from __future__ import unicode_literals
import logging
import json
import os
import sys
import traceback
try:
import requests
from requests.auth import HTTPBasicAuth
except ImportError:
print(traceback.format_exc(), end='')
sys.exit(4)
srcdir = os.path.abspath(os.path.dirname(__file__))
libdir = os.path.join(srcdir, 'pylib')
sys.path.append(libdir)
try:
# pylint: disable=wrong-import-position
from harisekhon.utils import log, log_option, qquit, support_msg_api, isList, isDict, jsonpp
from harisekhon.utils import validate_host, validate_port, validate_user, validate_password
from harisekhon import NagiosPlugin
except ImportError as _:
print(traceback.format_exc(), end='')
sys.exit(4)
__author__ = 'Hari Sekhon'
__version__ = '0.1'
class CheckBlueTalonMaskingFunctions(NagiosPlugin):
def __init__(self):
# Python 2.x
super(CheckBlueTalonMaskingFunctions, self).__init__()
# Python 3.x
# super().__init__()
self.software = 'Blue Talon'
self.default_host = 'localhost'
self.default_port = 8111
self.default_user = 'btadminuser'
self.default_password = 'P@ssw0rd'
self.host = self.default_host
self.port = self.default_port
self.user = self.default_user
self.password = None
self.protocol = 'http'
self.api_version = '1.0'
self.msg = '{0}: '.format(self.software)
self.ok()
def add_options(self):
self.add_hostoption(name=self.software,
default_host=self.default_host,
default_port=self.default_port)
self.add_useroption(name=self.software, default_user=self.default_user)
self.add_opt('-S', '--ssl', action='store_true', help='Use SSL')
self.add_thresholds()
def process_options(self):
self.no_args()
self.host = self.get_opt('host')
self.port = self.get_opt('port')
self.user = self.get_opt('user')
self.password = self.get_opt('password')
validate_host(self.host)
validate_port(self.port)
validate_user(self.user)
validate_password(self.password)
ssl = self.get_opt('ssl')
log_option('ssl', ssl)
if ssl:
self.protocol = 'https'
self.validate_thresholds(optional=True)
def run(self):
log.info('querying %s', self.software)
url = '{protocol}://{host}:{port}/PolicyManagement/{api_version}/masking_functions'\
.format(host=self.host, port=self.port, api_version=self.api_version, protocol=self.protocol)
log.debug('GET %s', url)
try:
req = requests.get(url, auth=HTTPBasicAuth(self.user, self.password))
except requests.exceptions.RequestException as _:
errhint = ''
if 'BadStatusLine' in str(_.message):
errhint = ' (possibly connecting to an SSL secured port without using --ssl?)'
elif self.protocol == 'https' and 'unknown protocol' in str(_.message):
errhint = ' (possibly connecting to a plain HTTP port with the -S / --ssl switch enabled?)'
qquit('CRITICAL', str(_) + errhint)
log.debug("response: %s %s", req.status_code, req.reason)
log.debug("content:\n%s\n%s\n%s", '='*80, req.content.strip(), '='*80)
if req.status_code != 200:
qquit('CRITICAL', '{0}: {1}'.format(req.status_code, req.reason))
try:
json_dict = json.loads(req.content)
if log.isEnabledFor(logging.DEBUG):
print(jsonpp(json_dict))
print('='*80)
if not isDict(json_dict):
raise ValueError("non-dict returned by Blue Talon API (got type '{0}')".format(type(json_dict)))
masking_functions_list = json_dict['masking_functions']
if not isList(masking_functions_list):
raise ValueError("non-list returned for 'masking_functions' key by Blue Talon API (got type '{0}')"\
.format(type(masking_functions_list)))
num_masking_functions = len(masking_functions_list)
self.msg += '{num_masking_functions} masking functions'\
.format(num_masking_functions=num_masking_functions)
self.check_thresholds(num_masking_functions)
self.msg += ' | num_masking_functions={num_masking_functions}{perf}'\
.format(num_masking_functions=num_masking_functions,
perf=self.get_perf_thresholds())
except (KeyError, ValueError) as _:
qquit('UNKNOWN', 'error parsing output from {software}: {exception}: {error}. {support_msg}'\
.format(software=self.software,
exception=type(_).__name__,
error=_,
support_msg=support_msg_api()))
if __name__ == '__main__':
CheckBlueTalonMaskingFunctions().main()