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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2009-2014:
# Gabes Jean, naparuba@gmail.com
# Gerhard Lausser, Gerhard.Lausser@consol.de
# Gregory Starck, g.starck@gmail.com
# Hartmut Goebel, h.goebel@goebel-consult.de
#
# This file is part of Shinken.
#
# Shinken is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Shinken 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Shinken. If not, see <http://www.gnu.org/licenses/>.
import time
import re
from shinken.misc.perfdata import PerfDatas
from shinken.log import logger
objs = {'hosts': [], 'services': []}
trigger_functions = {}
class declared(object):
""" Decorator to add function in trigger environnement
"""
def __init__(self, f):
self.f = f
global functions
n = f.func_name
# logger.debug("Initializing function %s %s" % (n, f))
trigger_functions[n] = f
def __call__(self, *args):
logger.debug("Calling %s with arguments %s", self.f.func_name, args)
return self.f(*args)
@declared
def up(obj, output):
""" Set a host in UP state
"""
set_value(obj, output, None, 0)
@declared
def down(obj, output):
""" Set a host in DOWN state
"""
set_value(obj, output, None, 1)
@declared
def ok(obj, output):
""" Set a service in OK state
"""
set_value(obj, output, None, 0)
@declared
def warning(obj, output):
""" Set a service in WARNING state
"""
set_value(obj, output, None, 1)
@declared
def critical(obj, output):
""" Set a service in CRITICAL state
"""
set_value(obj, output, None, 2)
@declared
def unknown(obj, output):
""" Set a service in UNKNOWN state
"""
set_value(obj, output, None, 3)
@declared
def set_value(obj_ref, output=None, perfdata=None, return_code=None):
""" Set output, state and perfdata to a service or host
"""
obj = get_object(obj_ref)
if not obj:
return
output = output or obj.output
perfdata = perfdata or obj.perf_data
if return_code is None:
return_code = obj.state_id
logger.debug("[trigger] Setting %s %s %s for object %s",
output,
perfdata,
return_code,
obj.get_full_name())
if perfdata:
output = output + ' | ' + perfdata
now = time.time()
cls = obj.__class__
i = obj.launch_check(now, force=True)
for chk in obj.checks_in_progress:
if chk.id == i:
logger.debug("[trigger] I found the check I want to change")
c = chk
# Now we 'transform the check into a result'
# So exit_status, output and status is eaten by the host
c.exit_status = return_code
c.get_outputs(output, obj.max_plugins_output_length)
c.status = 'waitconsume'
c.check_time = now
# IMPORTANT: tag this check as from a trigger, so we will not
# loop in an infinite way for triggers checks!
c.from_trigger = True
# Ok now this result will be read by scheduler the next loop
@declared
def perf(obj_ref, metric_name):
""" Get perf data from a service
"""
obj = get_object(obj_ref)
p = PerfDatas(obj.perf_data)
if metric_name in p:
logger.debug("[trigger] I found the perfdata")
return p[metric_name].value
logger.debug("[trigger] I am in perf command")
return None
@declared
def get_custom(obj_ref, cname, default=None):
""" Get custom varialbe from a service or a host
"""
obj = get_objects(obj_ref)
if not obj:
return default
cname = cname.upper().strip()
if not cname.startswith('_'):
cname = '_' + cname
return obj.customs.get(cname, default)
@declared
def perfs(objs_ref, metric_name):
""" TODO: check this description
Get perfdatas from multiple services/hosts
"""
objs = get_objects(objs_ref)
r = []
for o in objs:
v = perf(o, metric_name)
r.append(v)
return r
@declared
def allperfs(obj_ref):
""" Get all perfdatas from a service or a host
"""
obj = get_object(obj_ref)
p = PerfDatas(obj.perf_data)
logger.debug("[trigger] I get all perfdatas")
return dict([(metric.name, p[metric.name]) for metric in p])
@declared
def get_object(ref):
""" Retrive object (service/host) from name
"""
# Maybe it's already a real object, if so, return it :)
if not isinstance(ref, basestring):
return ref
# Ok it's a string
name = ref
if '/' not in name:
return objs['hosts'].find_by_name(name)
else:
elts = name.split('/', 1)
return objs['services'].find_srv_by_name_and_hostname(elts[0], elts[1])
@declared
def get_objects(ref):
""" TODO: check this description
Retrive objects (service/host) from names
"""
# Maybe it's already a real object, if so, return it :)
if not isinstance(ref, basestring):
return ref
name = ref
# Maybe there is no '*'? if so, it's one element
if '*' not in name:
return get_object(name)
# Ok we look for spliting the host or service thing
hname = ''
sdesc = ''
if '/' not in name:
hname = name
else:
elts = name.split('/', 1)
hname = elts[0]
sdesc = elts[1]
logger.debug("[trigger get_objects] Look for %s %s", hname, sdesc)
res = []
hosts = []
services = []
# Look for host, and if need, look for service
if '*' not in hname:
h = objs['hosts'].find_by_name(hname)
if h:
hosts.append(h)
else:
hname = hname.replace('*', '.*')
p = re.compile(hname)
for h in objs['hosts']:
logger.debug("[trigger] Compare %s with %s", hname, h.get_name())
if p.search(h.get_name()):
hosts.append(h)
# Maybe the user ask for justs hosts :)
if not sdesc:
return hosts
for h in hosts:
if '*' not in sdesc:
s = h.find_service_by_name(sdesc)
if s:
services.append(s)
else:
sdesc = sdesc.replace('*', '.*')
p = re.compile(sdesc)
for s in h.services:
logger.debug("[trigger] Compare %s with %s", s.service_description, sdesc)
if p.search(s.service_description):
services.append(s)
logger.debug("Found the following services: %s", services)
return services
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