nagios-http-json/check_http_json.py

765 lines
32 KiB
Python
Executable File

#!/usr/bin/python2.7
"""
Check HTTP JSON Nagios Plugin
Generic Nagios plugin which checks json values from a given endpoint against
argument specified rules and determines the status and performance data for
that service.
"""
import urllib2
import base64
import json
import argparse
import sys
import ssl
from pprint import pprint
from urllib2 import HTTPError
from urllib2 import URLError
OK_CODE = 0
WARNING_CODE = 1
CRITICAL_CODE = 2
UNKNOWN_CODE = 3
class NagiosHelper:
"""Help with Nagios specific status string formatting."""
message_prefixes = {OK_CODE: 'OK',
WARNING_CODE: 'WARNING',
CRITICAL_CODE: 'CRITICAL',
UNKNOWN_CODE: 'UNKNOWN'}
performance_data = ''
warning_message = ''
critical_message = ''
unknown_message = ''
def getMessage(self):
"""Build a status-prefixed message with optional performance data
generated externally"""
text = "%s: Status %s." % (self.message_prefixes[self.getCode()],
self.message_prefixes[self.getCode()])
text += self.warning_message
text += self.critical_message
text += self.unknown_message
if self.performance_data:
text += "|%s" % self.performance_data
return text
def getCode(self):
code = OK_CODE
if (self.warning_message != ''):
code = WARNING_CODE
if (self.critical_message != ''):
code = CRITICAL_CODE
if (self.unknown_message != ''):
code = UNKNOWN_CODE
return code
def append_warning(self, warning_message):
self.warning_message += warning_message
def append_critical(self, critical_message):
self.critical_message += critical_message
def append_unknown(self, unknown_message):
self.unknown_message += unknown_message
def append_metrics(self, performance_data,
warning_message, critical_message):
self.performance_data += performance_data
self.append_warning(warning_message)
self.append_critical(critical_message)
class JsonHelper:
"""Perform simple comparison operations against values in a given
JSON dict"""
def __init__(self, json_data, separator):
self.data = json_data
self.separator = separator
self.arrayOpener = '('
self.arrayCloser = ')'
def getSubElement(self, key, data):
separatorIndex = key.find(self.separator)
partialKey = key[:separatorIndex]
remainingKey = key[separatorIndex + 1:]
if partialKey in data:
return self.get(remainingKey, data[partialKey])
else:
return (None, 'not_found')
def getSubArrayElement(self, key, data):
subElemKey = key[:key.find(self.arrayOpener)]
index = int(key[key.find(self.arrayOpener) +
1:key.find(self.arrayCloser)])
remainingKey = key[key.find(self.arrayCloser + self.separator) + 2:]
if key.find(self.arrayCloser + self.separator) == -1:
remainingKey = key[key.find(self.arrayCloser) + 1:]
if subElemKey in data:
if index < len(data[subElemKey]):
return self.get(remainingKey, data[subElemKey][index])
else:
return (None, 'not_found')
else:
if not subElemKey:
return self.get(remainingKey, data[index])
else:
return (None, 'not_found')
def equals(self, key, value):
return self.exists(key) and \
str(self.get(key)) in value.split(':')
def lte(self, key, value):
return self.exists(key) and float(self.get(key)) <= float(value)
def lt(self, key, value):
return self.exists(key) and float(self.get(key)) < float(value)
def gte(self, key, value):
return self.exists(key) and float(self.get(key)) >= float(value)
def gt(self, key, value):
return self.exists(key) and float(self.get(key)) > float(value)
def exists(self, key):
return (self.get(key) != (None, 'not_found'))
def get(self, key, temp_data=''):
"""Can navigate nested json keys with a dot format
(Element.Key.NestedKey). Returns (None, 'not_found') if not found"""
if temp_data:
data = temp_data
else:
data = self.data
if len(key) <= 0:
return data
if key.find(self.separator) != -1 and \
key.find(self.arrayOpener) != -1:
if key.find(self.separator) < key.find(self.arrayOpener):
return self.getSubElement(key, data)
else:
return self.getSubArrayElement(key, data)
else:
if key.find(self.separator) != -1:
return self.getSubElement(key, data)
else:
if key.find(self.arrayOpener) != -1:
return self.getSubArrayElement(key, data)
else:
if key in data:
return data[key]
else:
return (None, 'not_found')
def expandKey(self, key, keys):
if '(*)' not in key:
keys.append(key)
return keys
subElemKey = ''
if key.find('(*)') > 0:
subElemKey = key[:key.find('(*)')-1]
remainingKey = key[key.find('(*)')+3:]
elemData = self.get(subElemKey)
if elemData is (None, 'not_found'):
keys.append(key)
return keys
if subElemKey is not '':
subElemKey = subElemKey + '.'
for i in range(len(elemData)):
newKey = subElemKey + '(' + str(i) + ')' + remainingKey
newKeys = self.expandKey(newKey, [])
for j in newKeys:
keys.append(j)
return keys
def _getKeyAlias(original_key):
key = original_key
alias = original_key
if '>' in original_key:
keys = original_key.split('>')
if len(keys) == 2:
key, alias = keys
return key, alias
class JsonRuleProcessor:
"""Perform checks and gather values from a JSON dict given rules
and metrics definitions"""
def __init__(self, json_data, rules_args):
self.data = json_data
self.rules = rules_args
separator = '.'
if self.rules.separator:
separator = self.rules.separator
self.helper = JsonHelper(self.data, separator)
debugPrint(rules_args.debug, "rules:%s" % rules_args)
debugPrint(rules_args.debug, "separator:%s" % separator)
self.metric_list = self.expandKeys(self.rules.metric_list)
self.key_threshold_warning = self.expandKeys(
self.rules.key_threshold_warning)
self.key_threshold_critical = self.expandKeys(
self.rules.key_threshold_critical)
self.key_value_list = self.expandKeys(self.rules.key_value_list)
self.key_value_list_not = self.expandKeys(
self.rules.key_value_list_not)
self.key_list = self.expandKeys(self.rules.key_list)
self.key_value_list_critical = self.expandKeys(
self.rules.key_value_list_critical)
self.key_value_list_not_critical = self.expandKeys(
self.rules.key_value_list_not_critical)
self.key_list_critical = self.expandKeys(self.rules.key_list_critical)
self.key_value_list_unknown = self.expandKeys(
self.rules.key_value_list_unknown)
def expandKeys(self, src):
if src is None:
return
dest = []
for key in src:
newKeys = self.helper.expandKey(key, [])
for k in newKeys:
dest.append(k)
return dest
def checkExists(self, exists_list):
failure = ''
for k in exists_list:
key, alias = _getKeyAlias(k)
if (self.helper.exists(key) is False):
failure += " Key %s did not exist." % alias
return failure
def checkEquality(self, equality_list):
failure = ''
for kv in equality_list:
k, v = kv.split(',')
key, alias = _getKeyAlias(k)
if (self.helper.equals(key, v) == False):
failure += " Key %s mismatch. %s != %s" % (alias, v,
self.helper.get(key))
return failure
def checkNonEquality(self, equality_list):
failure = ''
for kv in equality_list:
k, v = kv.split(',')
key, alias = _getKeyAlias(k)
if (self.helper.equals(key, v) == True):
failure += " Key %s match found. %s == %s" % (alias, v,
self.helper.get(key))
return failure
def checkThreshold(self, key, alias, r):
failure = ''
invert = False
start = 0
end = 'infinity'
if r.startswith('@'):
invert = True
r = r[1:]
vals = r.split(':')
if len(vals) == 1:
end = vals[0]
if len(vals) == 2:
start = vals[0]
if vals[1] != '':
end = vals[1]
if(start == '~'):
if (invert and self.helper.lte(key, end)):
failure += " Value (%s) for key %s was less than or equal to %s." % \
(self.helper.get(key), alias, end)
elif (not invert and self.helper.gt(key, end)):
failure += " Value (%s) for key %s was greater than %s." % \
(self.helper.get(key), alias, end)
elif(end == 'infinity'):
if (invert and self.helper.gte(key, start)):
failure += " Value (%s) for key %s was greater than or equal to %s." % \
(self.helper.get(key), alias, start)
elif (not invert and self.helper.lt(key, start)):
failure += " Value (%s) for key %s was less than %s." % \
(self.helper.get(key), alias, start)
else:
if (invert and self.helper.gte(key, start) and
self.helper.lte(key, end)):
failure += " Value (%s) for key %s was inside the range %s:%s." % \
(self.helper.get(key), alias, start, end)
elif (not invert and (self.helper.lt(key, start) or
self.helper.gt(key, end))):
failure += " Value (%s) for key %s was outside the range %s:%s." % \
(self.helper.get(key), alias, start, end)
return failure
def checkThresholds(self, threshold_list):
failure = ''
for threshold in threshold_list:
k, r = threshold.split(',')
key, alias = _getKeyAlias(k)
failure += self.checkThreshold(key, alias, r)
return failure
def checkWarning(self):
failure = ''
if self.key_threshold_warning is not None:
failure += self.checkThresholds(self.key_threshold_warning)
if self.key_value_list is not None:
failure += self.checkEquality(self.key_value_list)
if self.key_value_list_not is not None:
failure += self.checkNonEquality(self.key_value_list_not)
if self.key_list is not None:
failure += self.checkExists(self.key_list)
return failure
def checkCritical(self):
failure = ''
if self.key_threshold_critical is not None:
failure += self.checkThresholds(self.key_threshold_critical)
if self.key_value_list_critical is not None:
failure += self.checkEquality(self.key_value_list_critical)
if self.key_value_list_not_critical is not None:
failure += self.checkNonEquality(self.key_value_list_not_critical)
if self.key_list_critical is not None:
failure += self.checkExists(self.key_list_critical)
return failure
def checkUnknown(self):
unknown = ''
if self.key_value_list_unknown is not None:
unknown += self.checkEquality(self.key_value_list_unknown)
return unknown
def checkMetrics(self):
"""Return a Nagios specific performance metrics string given keys
and parameter definitions"""
metrics = ''
warning = ''
critical = ''
if self.metric_list is not None:
for metric in self.metric_list:
key = metric
minimum = maximum = warn_range = crit_range = None
uom = ''
if ',' in metric:
vals = metric.split(',')
if len(vals) == 2:
key, uom = vals
if len(vals) == 4:
key, uom, warn_range, crit_range = vals
if len(vals) == 6:
key, uom, warn_range, crit_range, \
minimum, maximum = vals
key, alias = _getKeyAlias(key)
if self.helper.exists(key):
metrics += "'%s'=%s" % (alias, self.helper.get(key))
if uom:
metrics += uom
if warn_range is not None:
warning += self.checkThreshold(key, alias, warn_range)
metrics += ";%s" % warn_range
if crit_range is not None:
critical += self.checkThreshold(key, alias, crit_range)
metrics += ";%s" % crit_range
if minimum is not None:
critical += self.checkThreshold(key, alias, minimum +
':')
metrics += ";%s" % minimum
if maximum is not None:
critical += self.checkThreshold(key, alias, '~:' +
maximum)
metrics += ";%s" % maximum
metrics += ' '
return ("%s" % metrics, warning, critical)
def parseArgs():
parser = argparse.ArgumentParser(description='''Nagios plugin which
checks json values from a given endpoint against argument specified rules
and determines the status and performance data for that service''')
parser.add_argument('-d', '--debug', action='store_true',
help='Debug mode.')
parser.add_argument('-s', '--ssl', action='store_true', help='HTTPS mode.')
parser.add_argument('-H', '--host', dest='host', required=True,
help='Host.')
parser.add_argument('-k', '--insecure', action='store_true',
help='do not check server SSL certificate')
parser.add_argument('--cacert',
dest='cacert', help='SSL CA certificate')
parser.add_argument('--cert',
dest='cert', help='SSL client certificate')
parser.add_argument('--key', dest='key',
help='SSL client key ( if not bundled into the cert )')
parser.add_argument('-P', '--port', dest='port', help='TCP port')
parser.add_argument('-p', '--path', dest='path', help='Path.')
parser.add_argument('-t', '--timeout', type=int,
help='Connection timeout (seconds)')
parser.add_argument('-B', '--basic-auth', dest='auth',
help='Basic auth string "username:password"')
parser.add_argument('-D', '--data', dest='data',
help='The http payload to send as a POST')
parser.add_argument('-A', '--headers', dest='headers',
help='The http headers in JSON format.')
parser.add_argument('-f', '--field_separator', dest='separator',
help='''JSON Field separator, defaults to ".";
Select element in an array with "(" ")"''')
parser.add_argument('-w', '--warning', dest='key_threshold_warning',
nargs='*',
help='''Warning threshold for these values
(key1[>alias],WarnRange key2[>alias],WarnRange).
WarnRange is in the format [@]start:end, more
information at
nagios-plugins.org/doc/guidelines.html.''')
parser.add_argument('-c', '--critical', dest='key_threshold_critical',
nargs='*',
help='''Critical threshold for these values
(key1[>alias],CriticalRange key2[>alias],CriticalRange.
CriticalRange is in the format [@]start:end, more
information at
nagios-plugins.org/doc/guidelines.html.''')
parser.add_argument('-e', '--key_exists', dest='key_list', nargs='*',
help='''Checks existence of these keys to determine
status. Return warning if key is not present.''')
parser.add_argument('-E', '--key_exists_critical',
dest='key_list_critical',
nargs='*',
help='''Same as -e but return critical if key is
not present.''')
parser.add_argument('-q', '--key_equals', dest='key_value_list', nargs='*',
help='''Checks equality of these keys and values
(key[>alias],value key2,value2) to determine status.
Multiple key values can be delimited with colon
(key,value1:value2). Return warning if equality
check fails''')
parser.add_argument('-Q', '--key_equals_critical',
dest='key_value_list_critical', nargs='*',
help='''Same as -q but return critical if
equality check fails.''')
parser.add_argument('-u', '--key_equals_unknown',
dest='key_value_list_unknown', nargs='*',
help='''Same as -q but return unknown if
equality check fails.''')
parser.add_argument('-y', '--key_not_equals',
dest='key_value_list_not', nargs='*',
help='''Checks equality of these keys and values
(key[>alias],value key2,value2) to determine status.
Multiple key values can be delimited with colon
(key,value1:value2). Return warning if equality
check succeeds''')
parser.add_argument('-Y', '--key_not_equals_critical',
dest='key_value_list_not_critical', nargs='*',
help='''Same as -q but return critical if equality
check succeeds.''')
parser.add_argument('-m', '--key_metric', dest='metric_list', nargs='*',
help='''Gathers the values of these keys (key[>alias],
UnitOfMeasure,WarnRange,CriticalRange,Min,Max) for
Nagios performance data. More information about Range
format and units of measure for nagios can be found at
nagios-plugins.org/doc/guidelines.html
Additional formats for this parameter are:
(key[>alias]), (key[>alias],UnitOfMeasure),
(key[>alias],UnitOfMeasure,WarnRange,
CriticalRange).''')
return parser.parse_args()
def debugPrint(debug_flag, message, pretty_flag=False):
if debug_flag:
if pretty_flag:
pprint(message)
else:
print(message)
if __name__ == "__main__" and len(sys.argv) >= 2 and sys.argv[1] == 'UnitTest':
import unittest
class RulesHelper:
separator = '.'
debug = False
key_threshold_warning = None
key_value_list = None
key_value_list_not = None
key_list = None
key_threshold_critical = None
key_value_list_critical = None
key_value_list_not_critical = None
key_list_critical = None
metric_list = None
def dash_m(self, data):
self.metric_list = data
return self
def dash_e(self, data):
self.key_list = data
return self
def dash_E(self, data):
self.key_list_critical = data
return self
def dash_q(self, data):
self.key_value_list = data
return self
def dash_Q(self, data):
self.key_value_list_critical = data
return self
def dash_y(self, data):
self.key_value_list_not = data
return self
def dash_Y(self, data):
self.key_value_list_not_critical = data
return self
def dash_w(self, data):
self.key_threshold_warning = data
return self
def dash_c(self, data):
self.key_threshold_critical = data
return self
class UnitTest(unittest.TestCase):
rules = RulesHelper()
def check_data(self, args, jsondata, code):
data = json.loads(jsondata)
nagios = NagiosHelper()
processor = JsonRuleProcessor(data, args)
nagios.append_warning(processor.checkWarning())
nagios.append_critical(processor.checkCritical())
nagios.append_metrics(processor.checkMetrics())
self.assertEqual(code, nagios.getCode())
def test_metrics(self):
self.check_data(RulesHelper().dash_m(['metric,,1:4,1:5']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_m(['metric,,1:5,1:4']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_m(['metric,,1:5,1:5,6,10']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_m(['metric,,1:5,1:5,1,4']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_m(['metric,s,@1:4,@6:10,1,10']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_m(['(*).value,s,1:5,1:5']),
'[{"value": 5},{"value": 100}]', CRITICAL_CODE)
def test_exists(self):
self.check_data(RulesHelper().dash_e(['nothere']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_E(['nothere']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_e(['metric']),
'{"metric": 5}', OK_CODE)
def test_equality(self):
self.check_data(RulesHelper().dash_q(['metric,6']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_Q(['metric,6']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_q(['metric,5']),
'{"metric": 5}', OK_CODE)
def test_non_equality(self):
self.check_data(RulesHelper().dash_y(['metric,6']),
'{"metric": 6}', WARNING_CODE)
self.check_data(RulesHelper().dash_Y(['metric,6']),
'{"metric": 6}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_y(['metric,5']),
'{"metric": 6}', OK_CODE)
def test_warning_thresholds(self):
self.check_data(RulesHelper().dash_w(['metric,5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,5:']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,~:5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,1:5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,@5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,@5:']),
'{"metric": 4}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,@~:5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,@1:5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_w(['metric,5']),
'{"metric": 6}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,5:']),
'{"metric": 4}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,~:5']),
'{"metric": 6}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,1:5']),
'{"metric": 6}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,@5']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,@5:']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,@~:5']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['metric,@1:5']),
'{"metric": 5}', WARNING_CODE)
self.check_data(RulesHelper().dash_w(['(*).value,@1:5']),
'[{"value": 5},{"value": 1000}]', WARNING_CODE)
def test_critical_thresholds(self):
self.check_data(RulesHelper().dash_c(['metric,5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,5:']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,~:5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,1:5']),
'{"metric": 5}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,@5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,@5:']),
'{"metric": 4}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,@~:5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,@1:5']),
'{"metric": 6}', OK_CODE)
self.check_data(RulesHelper().dash_c(['metric,5']),
'{"metric": 6}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,5:']),
'{"metric": 4}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,~:5']),
'{"metric": 6}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,1:5']),
'{"metric": 6}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,@5']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,@5:']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,@~:5']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['metric,@1:5']),
'{"metric": 5}', CRITICAL_CODE)
self.check_data(RulesHelper().dash_c(['(*).value,@1:5']),
'[{"value": 5},{"value": 1000}]', CRITICAL_CODE)
def test_separator(self):
rules = RulesHelper()
rules.separator = '_'
self.check_data(
rules.dash_q(
['(0)_gauges_jvm.buffers.direct.capacity(1)_value,1234']),
'''[{ "gauges": { "jvm.buffers.direct.capacity": [
{"value": 215415},{"value": 1234}]}}]''',
OK_CODE)
self.check_data(
rules.dash_q(
['(*)_gauges_jvm.buffers.direct.capacity(1)_value,1234']),
'''[{ "gauges": { "jvm.buffers.direct.capacity": [
{"value": 215415},{"value": 1234}]}},
{ "gauges": { "jvm.buffers.direct.capacity": [
{"value": 215415},{"value": 1235}]}}]''',
WARNING_CODE)
unittest.main()
exit(0)
"""Program entry point"""
if __name__ == "__main__":
args = parseArgs()
nagios = NagiosHelper()
if args.ssl:
url = "https://%s" % args.host
context = ssl.SSLContext(ssl.PROTOCOL_TLS)
context.options |= ssl.OP_NO_SSLv2
context.options |= ssl.OP_NO_SSLv3
if args.insecure:
context.verify_mode = ssl.CERT_NONE
else:
context.verify_mode = ssl.CERT_OPTIONAL
if args.cacert:
try:
context.load_verify_locations(args.cacert)
except ssl.SSLError:
nagios.append_unknown(
''' Error loading SSL CA cert "%s"!'''
% args.cacert)
if args.cert:
try:
context.load_cert_chain(args.cert,keyfile=args.key)
except ssl.SSLError:
if args.key:
nagios.append_unknown(
''' Error loading SSL cert. Make sure key "%s" belongs to cert "%s"!'''
% (args.key, args.cert))
else:
nagios.append_unknown(
''' Error loading SSL cert. Make sure "%s" contains the key as well!'''
% (args.cert))
if nagios.getCode() != OK_CODE:
print(nagios.getMessage())
exit(nagios.getCode())
else:
url = "http://%s" % args.host
if args.port:
url += ":%s" % args.port
if args.path:
url += "/%s" % args.path
debugPrint(args.debug, "url:%s" % url)
try:
req = urllib2.Request(url)
if args.auth:
base64str = base64.encodestring(args.auth).replace('\n', '')
req.add_header('Authorization', 'Basic %s' % base64str)
if args.headers:
headers = json.loads(args.headers)
debugPrint(args.debug, "Headers:\n %s" % headers)
for header in headers:
req.add_header(header, headers[header])
if args.timeout and args.data:
response = urllib2.urlopen(req, timeout=args.timeout,
data=args.data, context=context)
elif args.timeout:
response = urllib2.urlopen(req, timeout=args.timeout,
context=context)
elif args.data:
response = urllib2.urlopen(req, data=args.data, context=context)
else:
response = urllib2.urlopen(req, context=context)
except HTTPError as e:
nagios.append_unknown(" HTTPError[%s], url:%s" % (str(e.code), url))
except URLError as e:
nagios.append_critical(" URLError[%s], url:%s" % (str(e.reason), url))
try:
data = json.loads(response.read())
except ValueError as e:
nagios.append_unknown(" Parser error: %s" % str(e))
else:
debugPrint(args.debug, 'json:')
debugPrint(args.debug, data, True)
# Apply rules to returned JSON data
processor = JsonRuleProcessor(data, args)
nagios.append_warning(processor.checkWarning())
nagios.append_critical(processor.checkCritical())
nagios.append_metrics(processor.checkMetrics())
nagios.append_unknown(processor.checkUnknown())
# Print Nagios specific string and exit appropriately
print(nagios.getMessage())
exit(nagios.getCode())
#EOF