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check_blue_talon_version.py
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check_blue_talon_version.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 the deployed version of Blue Talon via the Policy Management server REST API
Outputs the version and update date.
Optional --expected regex may be used to check the version is as expected.
Verbose mode additionally outputs revision, build, schema revision and api version
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 re
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, isVersion, isList, isDict, jsonpp
from harisekhon.utils import validate_host, validate_port, validate_user, validate_password
from harisekhon import VersionNagiosPlugin
except ImportError as _:
print(traceback.format_exc(), end='')
sys.exit(4)
__author__ = 'Hari Sekhon'
__version__ = '0.3'
class CheckBlueTalonVersion(VersionNagiosPlugin):
def __init__(self):
# Python 2.x
super(CheckBlueTalonVersion, 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.expected = None
self.protocol = 'http'
self.api_version = '1.0'
self.msg = '{0} version unknown - no message defined'.format(self.software)
self.ok()
def add_options(self):
super(CheckBlueTalonVersion, self).add_options()
self.add_useroption(name=self.software, default_user=self.default_user)
self.add_opt('-S', '--ssl', action='store_true', help='Use SSL')
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.process_expected_version_option()
def run(self):
(build_version, extra_info) = self.get_version()
self.check_version(build_version)
self.msg += extra_info
def get(self):
log.info('querying %s', self.software)
url = '{protocol}://{host}:{port}/PolicyManagement/{api_version}/version'\
.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))
return req.content
def get_version(self):
content = self.get()
try:
json_list = json.loads(content)
if log.isEnabledFor(logging.DEBUG):
print(jsonpp(json_list))
print('='*80)
if not isList(json_list):
raise ValueError("non-list returned by API (is type '{0}')".format(type(json_list)))
json_dict = json_list[0]
if not isDict(json_dict):
raise ValueError("non-dict found inside returned list (is type '{0}')".format(type(json_dict)))
company_name = json_dict['company_name']
company_website = json_dict['company_website']
regex = re.compile(r'Blue\s*Talon', re.I)
if not regex.match(company_name) and \
not regex.match(company_website):
qquit('UNKNOWN', 'Blue Talon name was not found in either company_name or company_website fields' \
+ ', are you definitely querying a Blue Talon server?')
build_version = json_dict['build_version']
update_date = json_dict['update_date']
api_version = json_dict['api_version']
if not isVersion(api_version):
qquit('UNKNOWN', '{0} api version unrecognized \'{1}\'. {2}'\
.format(self.software, api_version, support_msg_api()))
if api_version != self.api_version:
qquit('UNKNOWN', "unexpected API version '{0}' returned (expected '{1}')"\
.format(api_version, self.api_version))
if self.verbose:
extra_info = ' revision {revision} build {build}, schema revision = {schema_revision}'\
.format(revision=json_dict['revision_no'],
build=json_dict['build_no'],
schema_revision=json_dict['schema_revision'])
extra_info += ', api version = {api_version}, update date = {update_date}'\
.format(api_version=api_version, update_date=update_date)
else:
extra_info = ', update date = {update_date}'.format(update_date=update_date)
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()))
return (build_version, extra_info)
if __name__ == '__main__':
CheckBlueTalonVersion().main()