#!/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 os
import re
import traceback
from shinken.objects.item import Item, Items
from shinken.property import BoolProp, StringProp
from shinken.log import logger
from shinken.trigger_functions import objs, trigger_functions, set_value
[docs]class Trigger(Item):
id = 1 # zero is always special in database, so we do not take risk here
my_type = 'trigger'
properties = Item.properties.copy()
properties.update({'trigger_name': StringProp(fill_brok=['full_status']),
'code_src': StringProp(default='', fill_brok=['full_status']),
})
running_properties = Item.running_properties.copy()
running_properties.update({'code_bin': StringProp(default=None),
'trigger_broker_raise_enabled': BoolProp(default=False)
})
# For debugging purpose only (nice name)
[docs] def get_name(self):
try:
return self.trigger_name
except AttributeError:
return 'UnnamedTrigger'
[docs] def compile(self):
self.code_bin = compile(self.code_src, "<irc>", "exec")
# ctx is the object we are evaluating the code. In the code
# it will be "self".
[docs] def eval(myself, ctx):
self = ctx
# Ok we can declare for this trigger call our functions
for (n, f) in trigger_functions.iteritems():
locals()[n] = f
code = myself.code_bin # Comment? => compile(myself.code_bin, "<irc>", "exec")
try:
exec code in dict(locals())
except Exception as err:
set_value(self, "UNKNOWN: Trigger error: %s" % err, "", 3)
logger.error('%s Trigger %s failed: %s ; %s' % (self.host_name, myself.trigger_name, err, traceback.format_exc()))
def __getstate__(self):
return {'trigger_name': self.trigger_name, 'code_src': self.code_src, 'trigger_broker_raise_enabled': self.trigger_broker_raise_enabled}
def __setstate__(self, d):
self.trigger_name = d['trigger_name']
self.code_src = d['code_src']
self.trigger_broker_raise_enabled = d['trigger_broker_raise_enabled']
[docs]class Triggers(Items):
name_property = "trigger_name"
inner_class = Trigger
# We will dig into the path and load all .trig files
[docs] def load_file(self, path):
# Now walk for it
for root, dirs, files in os.walk(path):
for file in files:
if re.search("\.trig$", file):
p = os.path.join(root, file)
try:
fd = open(p, 'rU')
buf = fd.read()
fd.close()
except IOError, exp:
logger.error("Cannot open trigger file '%s' for reading: %s", p, exp)
# ok, skip this one
continue
self.create_trigger(buf, file[:-5])
# Create a trigger from the string src, and with the good name
[docs] def create_trigger(self, src, name):
# Ok, go compile the code
t = Trigger({'trigger_name': name, 'code_src': src})
t.compile()
# Ok, add it
self[t.id] = t
return t
[docs] def compile(self):
for i in self:
i.compile()
[docs] def load_objects(self, conf):
global objs
objs['hosts'] = conf.hosts
objs['services'] = conf.services