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# encoding: utf-8
# Nagstamon - Nagios status monitor for your desktop
# Copyright (C) 2008-2014 Henri Wahl <h.wahl@ifw-dresden.de> et al.
#
# This program 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
# Initial implementation by Marcus Mönnig
#
# This Server class connects against IcingaWeb2. The monitor URL in the setup should be
# something like http://icinga2/icingaweb2
#
# Status/TODOs:
#
# * The IcingaWeb2 API is not implemented yet, so currently this implementation uses
# two HTTP requests per action. The first fetches the HTML, then the form data is extracted and
# then a second HTTP POST request is made which actually executed the action.
# Once IcingaWeb2 has an API, it's probably the better choice.
from Nagstamon.Servers.Generic import GenericServer
import urllib.parse
import sys
import copy
import json
import datetime
from bs4 import BeautifulSoup
from Nagstamon.Objects import (GenericHost,
GenericService,
Result)
from Nagstamon.Config import (conf,
AppInfo)
from Nagstamon.Helpers import webbrowser_open
def strfdelta(tdelta, fmt):
d = {'days': tdelta.days}
d['hours'], rem = divmod(tdelta.seconds, 3600)
d['minutes'], d['seconds'] = divmod(rem, 60)
return fmt.format(**d)
class IcingaWeb2Server(GenericServer):
"""
object of Incinga server
"""
TYPE = 'IcingaWeb2'
MENU_ACTIONS = ['Monitor', 'Recheck', 'Acknowledge', 'Submit check result', 'Downtime']
STATES_MAPPING = {'hosts' : {0 : 'UP', 1 : 'DOWN', 2 : 'UNREACHABLE'}, \
'services' : {0 : 'OK', 1 : 'WARNING', 2 : 'CRITICAL', 3 : 'UNKNOWN'}}
STATES_MAPPING_REV = {'hosts' : { 'UP': 0, 'DOWN': 1, 'UNREACHABLE': 2}, \
'services' : {'OK': 0, 'WARNING': 1, 'CRITICAL': 2, 'UNKNOWN': 3}}
BROWSER_URLS = { 'monitor': '$MONITOR-CGI$/dashboard', \
'hosts': '$MONITOR-CGI$/monitoring/list/hosts', \
'services': '$MONITOR-CGI$/monitoring/list/services', \
'history': '$MONITOR-CGI$/monitoring/list/eventhistory?timestamp>=-7 days'}
def init_config(self):
"""
set URLs for CGI - they are static and there is no need to set them with every cycle
"""
# dummy default empty cgi urls - get filled later when server version is known
self.cgiurl_services = None
self.cgiurl_hosts = None
def init_HTTP(self):
"""
initializing of session object
"""
GenericServer.init_HTTP(self)
if not 'Referer' in self.session.headers:
self.session.headers['Referer'] = self.monitor_cgi_url + '/icingaweb2/monitoring'
# normally cookie out will be used
if not self.no_cookie_auth:
if len(self.session.cookies) == 0:
# get login page, thus automatically a cookie
login = self.FetchURL('{0}/authentication/login'.format(self.monitor_url))
if login.error == '' and login.status_code == 200:
form = login.result.find('form')
form_inputs = {}
for form_input in ('redirect', 'formUID', 'CSRFToken', 'btn_submit'):
if not form.find('input', {'name': form_input}) is None:
form_inputs[form_input] = form.find('input', {'name': form_input})['value']
else:
form_inputs[form_input] = ''
form_inputs['username'] = self.username
form_inputs['password'] = self.password
# fire up login button with all needed data
self.FetchURL('{0}/authentication/login'.format(self.monitor_url), cgi_data=form_inputs)
def _get_status(self):
"""
Get status from Icinga Server - only JSON
"""
# define CGI URLs for hosts and services
if self.cgiurl_hosts == self.cgiurl_services == None:
# services (unknown, warning or critical?)
self.cgiurl_services = {'hard': self.monitor_cgi_url + '/monitoring/list/services?service_state>0&service_state<=3&service_state_type=1&addColumns=service_last_check&format=json', \
'soft': self.monitor_cgi_url + '/monitoring/list/services?service_state>0&service_state<=3&service_state_type=0&addColumns=service_last_check&format=json'}
# hosts (up or down or unreachable)
self.cgiurl_hosts = {'hard': self.monitor_cgi_url + '/monitoring/list/hosts?host_state>0&host_state<=2&host_state_type=1&addColumns=host_last_check&format=json', \
'soft': self.monitor_cgi_url + '/monitoring/list/hosts?host_state>0&host_state<=2&host_state_type=0&addColumns=host_last_check&format=json'}
# new_hosts dictionary
self.new_hosts = dict()
# hosts - mostly the down ones
# now using JSON output from Icinga
try:
for status_type in 'hard', 'soft':
# first attempt
result = self.FetchURL(self.cgiurl_hosts[status_type], giveback='raw')
# authentication errors get a status code 200 too back because its
# HTML works fine :-(
if result.status_code < 400 and\
result.result.startswith('<'):
# in case of auth error reset HTTP session and try again
self.reset_HTTP()
result = self.FetchURL(self.cgiurl_hosts[status_type], giveback='raw')
# if it does not work again tell GUI there is a problem
if result.status_code < 400 and\
result.result.startswith('<'):
self.refresh_authentication = True
return Result(result=result.result,
error='Authentication error',
status_code=result.status_code)
# purify JSON result of unnecessary control sequence \n
jsonraw, error, status_code = copy.deepcopy(result.result.replace('\n', '')),\
copy.deepcopy(result.error),\
result.status_code
if error != '' or status_code >= 400:
return Result(result=jsonraw,
error=error,
status_code=status_code)
# check if any error occured
self.check_for_error(jsonraw, error, status_code)
hosts = json.loads(jsonraw)
for host in hosts:
# make dict of tuples for better reading
h = dict(host.items())
# host
if self.use_display_name_host == False:
# according to http://sourceforge.net/p/nagstamon/bugs/83/ it might
# better be host_name instead of host_display_name
# legacy Icinga adjustments
if 'host_name' in h: host_name = h['host_name']
elif 'host' in h: host_name = h['host']
else:
# https://github.com/HenriWahl/Nagstamon/issues/46 on the other hand has
# problems with that so here we go with extra display_name option
host_name = h['host_display_name']
# host objects contain service objects
if not host_name in self.new_hosts:
self.new_hosts[host_name] = GenericHost()
self.new_hosts[host_name].name = host_name
self.new_hosts[host_name].server = self.name
self.new_hosts[host_name].status = self.STATES_MAPPING['hosts'][int(h['host_state'])]
self.new_hosts[host_name].last_check = datetime.datetime.fromtimestamp(int(h['host_last_check']))
self.new_hosts[host_name].attempt = h['host_attempt']
self.new_hosts[host_name].status_information = BeautifulSoup(h['host_output'].replace('\n', ' ').strip(), 'html.parser').text
self.new_hosts[host_name].passiveonly = not(int(h['host_active_checks_enabled']))
self.new_hosts[host_name].notifications_disabled = not(int(h['host_notifications_enabled']))
self.new_hosts[host_name].flapping = int(h['host_is_flapping'])
self.new_hosts[host_name].acknowledged = int(h['host_acknowledged'])
self.new_hosts[host_name].scheduled_downtime = int(h['host_in_downtime'])
self.new_hosts[host_name].status_type = status_type
# extra Icinga properties to solve https://github.com/HenriWahl/Nagstamon/issues/192
# acknowledge needs host_description and no display name
self.new_hosts[host_name].real_name = h['host_name']
# extra duration needed for calculation
duration = datetime.datetime.now() - datetime.datetime.fromtimestamp(int(h['host_last_state_change']))
self.new_hosts[host_name].duration = strfdelta(duration, '{days}d {hours}h {minutes}m {seconds}s')
del h, host_name
except:
import traceback
traceback.print_exc(file=sys.stdout)
# set checking flag back to False
self.isChecking = False
result, error = self.Error(sys.exc_info())
return Result(result=result, error=error)
# services
try:
for status_type in 'hard', 'soft':
result = self.FetchURL(self.cgiurl_services[status_type], giveback='raw')
# purify JSON result of unnecessary control sequence \n
jsonraw, error, status_code = copy.deepcopy(result.result.replace('\n', '')),\
copy.deepcopy(result.error),\
result.status_code
if error != '' or status_code >= 400:
return Result(result=jsonraw,
error=error,
status_code=status_code)
# check if any error occured
self.check_for_error(jsonraw, error, status_code)
services = copy.deepcopy(json.loads(jsonraw))
for service in services:
# make dict of tuples for better reading
s = dict(service.items())
if self.use_display_name_host == False:
# according to http://sourceforge.net/p/nagstamon/bugs/83/ it might
# better be host_name instead of host_display_name
# legacy Icinga adjustments
if 'host_name' in s: host_name = s['host_name']
elif 'host' in s: host_name = s['host']
else:
# https://github.com/HenriWahl/Nagstamon/issues/46 on the other hand has
# problems with that so here we go with extra display_name option
host_name = s['host_display_name']
# host objects contain service objects
# ##if not self.new_hosts.has_key(host_name):
if not host_name in self.new_hosts:
self.new_hosts[host_name] = GenericHost()
self.new_hosts[host_name].name = host_name
self.new_hosts[host_name].status = 'UP'
# extra Icinga properties to solve https://github.com/HenriWahl/Nagstamon/issues/192
# acknowledge needs host_description and no display name
self.new_hosts[host_name].real_name = s['host_name']
if self.use_display_name_host == False:
# legacy Icinga adjustments
if 'service_description' in s: service_name = s['service_description']
elif 'description' in s: service_name = s['description']
elif 'service' in s: service_name = s['service']
else:
service_name = s['service_display_name']
# if a service does not exist create its object
if not service_name in self.new_hosts[host_name].services:
self.new_hosts[host_name].services[service_name] = GenericService()
self.new_hosts[host_name].services[service_name].host = host_name
self.new_hosts[host_name].services[service_name].name = service_name
self.new_hosts[host_name].services[service_name].server = self.name
self.new_hosts[host_name].services[service_name].status = self.STATES_MAPPING['services'][int(s['service_state'])]
self.new_hosts[host_name].services[service_name].last_check = datetime.datetime.fromtimestamp(int(s['service_last_check']))
self.new_hosts[host_name].services[service_name].attempt = s['service_attempt']
self.new_hosts[host_name].services[service_name].status_information = BeautifulSoup(s['service_output'].replace('\n', ' ').strip(), 'html.parser').text
self.new_hosts[host_name].services[service_name].passiveonly = not(int(s['service_active_checks_enabled']))
self.new_hosts[host_name].services[service_name].notifications_disabled = not(int(s['service_notifications_enabled']))
self.new_hosts[host_name].services[service_name].flapping = int(s['service_is_flapping'])
self.new_hosts[host_name].services[service_name].acknowledged = int(s['service_acknowledged'])
self.new_hosts[host_name].services[service_name].scheduled_downtime = int(s['service_in_downtime'])
self.new_hosts[host_name].services[service_name].status_type = status_type
# extra Icinga properties to solve https://github.com/HenriWahl/Nagstamon/issues/192
# acknowledge needs service_description and no display name
self.new_hosts[host_name].services[service_name].real_name = s['service_description']
# extra duration needed for calculation
duration = datetime.datetime.now() - datetime.datetime.fromtimestamp(int(s['service_last_state_change']))
self.new_hosts[host_name].services[service_name].duration = strfdelta(duration, '{days}d {hours}h {minutes}m {seconds}s')
del s, host_name, service_name
except:
import traceback
traceback.print_exc(file=sys.stdout)
# set checking flag back to False
self.isChecking = False
result, error = self.Error(sys.exc_info())
return Result(result=result, error=error)
# some cleanup
del jsonraw, error, hosts, services
# dummy return in case all is OK
return Result()
def _set_recheck(self, host, service):
# First retrieve the info page for this host/service
if service == '':
url = self.monitor_cgi_url + '/monitoring/host/show?host=' + self.hosts[host].real_name
else:
url = self.monitor_cgi_url + '/monitoring/service/show?host=' + self.hosts[host].real_name + '&service=' + self.hosts[host].services[service].real_name
result = self.FetchURL(url, giveback='raw')
if result.error != '':
return result
else:
pageraw = result.result
pagesoup = BeautifulSoup(pageraw, 'html.parser')
# Extract the relevant form element values
formtag = pagesoup.find('form', {'name':'IcingaModuleMonitoringFormsCommandObjectCheckNowCommandForm'})
CSRFToken = formtag.findNext('input', {'name':'CSRFToken'})['value']
formUID = formtag.findNext('input', {'name':'formUID'})['value']
btn_submit = formtag.findNext('button', {'name':'btn_submit'})['value']
# Pass these values to the same URL as cgi_data
cgi_data = {}
cgi_data['CSRFToken'] = CSRFToken
cgi_data['formUID'] = formUID
cgi_data['btn_submit'] = btn_submit
result = self.FetchURL(url, giveback='raw', cgi_data=cgi_data)
def _set_acknowledge(self, host, service, author, comment, sticky, notify, persistent, all_services=[]):
# First retrieve the info page for this host/service
if service == '':
# url = self.monitor_cgi_url + '/monitoring/host/acknowledge-problem?host=' + host
url = '{0}/monitoring/host/acknowledge-problem?host={1}'.format(self.monitor_cgi_url,
self.hosts[host].real_name)
else:
# url = self.monitor_cgi_url + '/monitoring/service/acknowledge-problem?host=' + host + '&service=' + service
url = '{0}/monitoring/service/acknowledge-problem?host={1}&service={2}'.format(self.monitor_cgi_url,
self.hosts[host].real_name,
self.hosts[host].services[service].real_name)
result = self.FetchURL(url, giveback='raw')
if result.error != '':
return result
else:
pageraw = result.result
pagesoup = BeautifulSoup(pageraw, 'html.parser')
# Extract the relevant form element values
formtag = pagesoup.find('form', {'name':'IcingaModuleMonitoringFormsCommandObjectAcknowledgeProblemCommandForm'})
CSRFToken = formtag.findNext('input', {'name':'CSRFToken'})['value']
formUID = formtag.findNext('input', {'name':'formUID'})['value']
btn_submit = formtag.findNext('input', {'name':'btn_submit'})['value']
# Pass these values to the same URL as cgi_data
cgi_data = {}
cgi_data['CSRFToken'] = CSRFToken
cgi_data['formUID'] = formUID
cgi_data['btn_submit'] = btn_submit
#
cgi_data['comment'] = comment
cgi_data['persistent'] = int(persistent)
cgi_data['sticky'] = int(sticky)
cgi_data['notify'] = int(notify)
cgi_data['comment'] = comment
self.FetchURL(url, giveback='raw', cgi_data=cgi_data)
if len(all_services) > 0:
for s in all_services:
# cheap, recursive solution...
self._set_acknowledge(host, s, author, comment, sticky, notify, persistent, [])
def _set_submit_check_result(self, host, service, state, comment, check_output, performance_data):
# First retrieve the info page for this host/service
if service == '':
url = self.monitor_cgi_url + '/monitoring/host/process-check-result?host=' + self.hosts[host].real_name
status = self.STATES_MAPPING_REV['hosts'][state.upper()]
else:
url = self.monitor_cgi_url + '/monitoring/service/process-check-result?host=' + self.hosts[host].real_name + '&service=' + self.hosts[host].services[service].real_name
status = self.STATES_MAPPING_REV['services'][state.upper()]
result = self.FetchURL(url, giveback='raw')
if result.error != '':
return result
else:
pageraw = result.result
pagesoup = BeautifulSoup(pageraw, 'html.parser')
# Extract the relevant form element values
formtag = pagesoup.find('form', {'name':'IcingaModuleMonitoringFormsCommandObjectProcessCheckResultCommandForm'})
CSRFToken = formtag.findNext('input', {'name':'CSRFToken'})['value']
formUID = formtag.findNext('input', {'name':'formUID'})['value']
btn_submit = formtag.findNext('input', {'name':'btn_submit'})['value']
# Pass these values to the same URL as cgi_data
cgi_data = {}
cgi_data['CSRFToken'] = CSRFToken
cgi_data['formUID'] = formUID
cgi_data['btn_submit'] = btn_submit
cgi_data['status'] = status
cgi_data['output'] = check_output
cgi_data['perfdata'] = performance_data
self.FetchURL(url, giveback='raw', cgi_data=cgi_data)
def _set_downtime(self, host, service, author, comment, fixed, start_time, end_time, hours, minutes):
# First retrieve the info page for this host/service
if service == '':
url = self.monitor_cgi_url + '/monitoring/host/schedule-downtime?host=' + self.hosts[host].real_name
else:
url = self.monitor_cgi_url + '/monitoring/service/schedule-downtime?host=' + self.hosts[host].real_name + '&service=' + self.hosts[host].services[service].real_name
result = self.FetchURL(url, giveback='raw')
if result.error != '':
return result
else:
pageraw = result.result
pagesoup = BeautifulSoup(pageraw, 'html.parser')
# Extract the relevant form element values
if service == '':
formtag = pagesoup.find('form', {'name':'IcingaModuleMonitoringFormsCommandObjectScheduleHostDowntimeCommandForm'})
else:
formtag = pagesoup.find('form', {'name':'IcingaModuleMonitoringFormsCommandObjectScheduleServiceDowntimeCommandForm'})
CSRFToken = formtag.findNext('input', {'name':'CSRFToken'})['value']
formUID = formtag.findNext('input', {'name':'formUID'})['value']
btn_submit = formtag.findNext('input', {'name':'btn_submit'})['value']
# Pass these values to the same URL as cgi_data
cgi_data = {}
cgi_data['CSRFToken'] = CSRFToken
cgi_data['formUID'] = formUID
cgi_data['btn_submit'] = btn_submit
cgi_data['comment'] = comment
if fixed:
cgi_data['type'] = 'fixed'
else:
cgi_data['type'] = 'flexible'
cgi_data['hours'] = hours
cgi_data['minutes'] = minutes
if start_time == '' or start_time == 'n/a':
start = datetime.datetime.now().strftime('%Y-%m-%dT%H:%M:%S')
else:
start = start_time
if end_time == '' or end_time == 'n/a':
end = (datetime.datetime.now() + datetime.timedelta(hours=hours, minutes=minutes)).strftime('%Y-%m-%dT%H:%M:%S')
else:
end = end_time
cgi_data['start'] = start
cgi_data['end'] = end
self.FetchURL(url, giveback='raw', cgi_data=cgi_data)
def get_start_end(self, host):
'''
for GUI to get actual downtime start and end from server - they may vary so it's better to get
directly from web interface
'''
try:
downtime = self.FetchURL(self.monitor_cgi_url + '/monitoring/host/schedule-downtime?host=' + self.hosts[host].real_name)
start = downtime.result.find('input', {'name': 'start'})['value']
end = downtime.result.find('input', {'name': 'end'})['value']
# give values back as tuple
return start, end
except:
self.Error(sys.exc_info())
return 'n/a', 'n/a'
def open_monitor(self, host, service=''):
'''
open monitor from tablewidget context menu
'''
# only type is important so do not care of service '' in case of host monitor
if service == '':
url = '{0}/monitoring/list/hosts?host_problem=1&sort=host_severity#!{1}/monitoring/host/show?{2}'.format(self.monitor_url,
(urllib.parse.urlparse(self.monitor_url).path),
urllib.parse.urlencode(
{'host': self.hosts[host].real_name}).replace('+', ' '))
else:
url = '{0}/monitoring/list/services?service_problem=1&sort=service_severity&dir=desc#!{1}/monitoring/service/show?{2}'.format(self.monitor_url,
(urllib.parse.urlparse(self.monitor_url).path),
urllib.parse.urlencode(
{'host': self.hosts[host].real_name,
'service': self.hosts[host].services[service].real_name}).replace('+', ' '))
if conf.debug_mode:
self.Debug(server=self.get_name(), host=host, service=service,
debug='Open host/service monitor web page {0}'.format(url))
webbrowser_open(url)
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