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#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# +------------------------------------------------------------------+
#
# This file will some day be part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.


# Author: Daniel Karni <minodudd@gmail.com>

# EXAMPLE DATA FROM: Ablerex VT650 (vt650)
#<<<nut>>>
#vt650 battery.voltage: 14.10
#vt650 battery.voltage.high: -1.08
#vt650 battery.voltage.low: -0.87
#vt650 device.type: ups
#vt650 driver.name: blazer_usb
#vt650 driver.parameter.bus: 005
#vt650 driver.parameter.pollinterval: 2
#vt650 driver.parameter.port: auto
#vt650 driver.version: 2.6.4
#vt650 driver.version.internal: 0.08
#vt650 input.frequency: 49.9
#vt650 input.voltage: 235.6
#vt650 input.voltage.fault: 140.0
#vt650 output.voltage: 236.4
#vt650 ups.beeper.status: enabled
#vt650 ups.delay.shutdown: 30
#vt650 ups.delay.start: 180
#vt650 ups.load: 23
#vt650 ups.productid: 0000
#vt650 ups.status: OL
#vt650 ups.temperature: 30.0
#vt650 ups.type: offline / line interactive
#vt650 ups.vendorid: ffff

nut_temp_default_values = (35, 40)
nut_load_default_values = (50, 70)
nut_output_default_values = (245, 250)

nut_battery_default_levels = (10, 5)

nut_input_voltage_fault_default_levels = (155,  160)
nut_input_default_levels = (245, 250)
nut_input_freq_default_levels = (51, 55)


# the inventory function (dummy)
def inventory_nut(check_type, info):
	# begin with empty inventory
	inventory = []
	for line in info:
		
		# loop over all output lines of the agent
		if len(line) < 3:
			#found a broken line (values are in the third column)
			continue

		if check_type == 'nut.device' and line[1] in [ 'device.type:', 'ups.productid:', 'ups.type:', 'ups.vendorid:',] and not (line[0], None) in inventory: inventory.append((line[0], None))
		elif check_type == 'nut.driver' and line[1] in [ 'driver.name:', 'driver.parameter.bus:', 'driver.parameter.pollinterval:', 'driver.parameter.port:', 'driver.version:', 'driver.version.internal:',] and not (line[0], None) in inventory: inventory.append((line[0], None))
		elif check_type == 'nut.input' and line[1] in [ 'input.frequency:', 'input.voltage:', 'input.voltage.fault:',] and not (line[0], None) in inventory: inventory.append((line[0], None))
		elif check_type == 'nut.delay' and line[1] in [ 'ups.delay.shutdown:', 'ups.delay.start:',] and not (line[0], None) in inventory: inventory.append((line[0], None))
		elif check_type == 'nut.input.freq' and line[1] == 'input.frequency:': inventory.append((line[0], None, 'nut_input_freq_default_levels'))
		elif check_type == 'nut.input' and line[1] == 'input.voltage:': inventory.append((line[0], None, 'nut_input_default_levels'))
		elif check_type == 'nut.input.fault' and line[1] == 'input.voltage.fault:': inventory.append((line[0], None, 'nut_input_voltage_fault_default_levels'))
		elif check_type == 'nut.battery' and line[1] == 'battery.voltage:': inventory.append((line[0], None, 'nut_battery_default_levels'))
		elif check_type == 'nut.output' and line[1] == 'output.voltage:': inventory.append((line[0], None, 'nut_output_default_values'))
		elif check_type == 'nut.beeper' and line[1] == 'ups.beeper.status:': inventory.append((line[0], None))
		elif check_type == 'nut.load' and line[1] == 'ups.load:': inventory.append((line[0], None, 'nut_load_default_values'))
		elif check_type == 'nut.temp' and line[1] == 'ups.temperature:': inventory.append((line[0], None, 'nut_temp_default_values'))
		elif check_type == 'nut.status' and line[1] == 'ups.status:': inventory.append((line[0], None))
			
	return inventory


def check_nut_value(item, params, info, lineLabel, factType, returnOutput):
	warn, crit = params

	for line in info:
		if len(line) >= 3 and line[0] == item and line[1] == lineLabel+":":
			lineData = float(line[2]);
			perfdata = [ ( factType , lineData, warn, crit ) ];

			if lineData >= crit:
				return (2, ("CRIT - " + returnOutput) % lineData, perfdata)
			elif lineData >= warn:
				return (1, ("WARN - " + returnOutput) % lineData, perfdata)
			else:
				return (0, ("OK - " + returnOutput) % lineData, perfdata)
	return (3, "UNKNOWN - %s not found in agent output for %s" % (lineLabel , item))




def check_nut_battery(item, params, info):
	warn, crit = params
	
	for line in info:
		
		if len(line) >= 3 and line[0] == item and line[1] == "battery.voltage:":

			voltage = float(line[2])
			perfdata = [ ( "voltage", voltage, warn, crit ) ]
			
			if voltage <= crit:
				return (2, "CRIT - Battery Voltage is %0.2fv" % voltage, perfdata)
			elif voltage <= warn:
				return (1, "WARN - Battery Voltage is %0.2fv" % voltage, perfdata)
			else:
				return (0, "OK - Battery Voltage is %0.2fv" % voltage, perfdata)
	return (3, "UNKNOWN - battery.voltage not found in agent output for %s" % item)




### String collection checks

def check_nut_device(item, params, info):
	output   = []
	for line in info:
		if len(line) < 3 or line[0] != item:
			continue

		value = line[2]
		field = line[1]
		if field in [ 'device.type:',
						'ups.productid:',
						'ups.type:',
						'ups.vendorid:',]:
			for val, lab, txt in [
					  (value,  'device.type:',		'Device Type'),
					  (value,  'ups.productid:',	'Product ID'),
					  (value,  'ups.type:',			'UPS Type'),
					  (value,  'ups.vendorid:',		'Vendor ID'),
				   ]:
				if field == lab:
					output.append('%s: %s' % (txt, val))
				
	if not output:
		return (3, 'UNKNOWN - Found no info in nut outout')
	return (0, "OK - Device Details: %s" % (', '.join(output)))
	
	

def check_nut_driver(item, params, info):
	output   = []
	for line in info:
		if len(line) < 3 or line[0] != item:
			continue

		value = line[2]
		field = line[1]
		if field in [ 'driver.name:',
						'driver.parameter.bus:',
						'driver.parameter.pollinterval:',
						'driver.parameter.port:',
						'driver.version:',
						'driver.version.internal:',]:
			for val, lab, txt in [
					  (value, 'driver.name:',					'Name'),
					  (value, 'driver.parameter.bus:',			'Parameter Bus'),
					  (value, 'driver.parameter.pollinterval:',	'Poll Interval'),
					  (value, 'driver.parameter.port:',			'Port'),
					  (value, 'driver.version:',				'Version'),
					  (value, 'driver.version.internal:',		'Internal Version'),
				   ]:
				if field == lab:
					output.append('%s: %s' % (txt, val))
				
	if not output:
		return (3, 'UNKNOWN - Found no info in nut outout')
	return (0, "OK - Driver Details: %s" % (', '.join(output)))

def check_nut_delay(item, params, info):
	output   = []
	for line in info:
		if len(line) < 3 or line[0] != item:
			continue

		value = line[2]
		field = line[1]
		if field in [ 'ups.delay.shutdown:',
						'ups.delay.start:',]:
			for val, lab, txt in [
					  (value,  'ups.delay.shutdown:',		'Shutdown Delay'),
					  (value,  'ups.delay.start:',	'Start Delay'),
				   ]:
				if field == lab:
					output.append('%s: %s' % (txt, val))
				
	if not output:
		return (3, 'UNKNOWN - Found no info in nut outout')
	return (0, "OK - Device Details: %s" % (', '.join(output)))
	



### String comparison checks

def check_nut_beeper(item, params, info):
	for line in info:
		if len(line) < 3 or line[0] != item:
			continue

		value = line[2]
		if line[1] == 'ups.beeper.status:':
			if value == 'enabled':
				return (0, "OK - UPS Beeper Status is enabled")
			elif value == 'disabled':
				return (1, "WARN - UPS Beeper Status is disabled")
	return (3, "UNKNOWN - UPS Beeper Status cannot be determined for %s" % item)

def check_nut_status(item, params, info):
	for line in info:
		if len(line) < 3 or line[0] != item:
			continue

		value = line[2]
		if line[1] == 'ups.status:':
			if value == 'OL':
				return (0, "OK - UPS Status is Online (OL)")
			elif value == 'OB':
				return (1, "WARN - UPS Status is On Battery (OB)")
			elif value == 'LB':
				return (2, "CRIT - UPS Status is Low Battery (LB)")
	return (3, "UNKNOWN - UPS Status cannot be determined for %s" % item)




	

# declare the check to Check_MK
check_info["nut.battery"]		=	(check_nut_battery,		'NUT %s Battery Voltage',		1,	lambda info: inventory_nut("nut.battery", info))
check_info["nut.device"]		=	(check_nut_device,		'NUT %s Device Details',		0,	lambda info: inventory_nut("nut.device", info))
check_info["nut.driver"]		=	(check_nut_driver,		'NUT %s Driver Details',		0,	lambda info: inventory_nut("nut.driver", info))
check_info["nut.input"]	        =	(lambda item, params, info: check_nut_value(item, params, info,"input.voltage", "voltage", "Input Voltage is %0.2fv"),	'NUT %s Input Voltage',			1,	lambda info: inventory_nut("nut.input", info))
check_info["nut.input.freq"]	=	(lambda item, params, info: check_nut_value(item, params, info,"input.frequency", "frequency", "Input Frequency is %0.2fHz"),	'NUT %s Input Frequency',		1,	lambda info: inventory_nut("nut.input.freq", info))
check_info["nut.input.fault"]	=	(lambda item, params, info: check_nut_value(item, params, info,"input.voltage.fault", "voltage", "Input Voltage fault is %0.2fv"),	'NUT %s Input Voltage Fault',	1,	lambda info: inventory_nut("nut.input.fault", info))
check_info["nut.output"]	    =	(lambda item, params, info: check_nut_value(item, params, info,"output.voltage", "voltage", "Output Voltage is %0.2fv"),	'NUT %s Output Voltage',		1,	lambda info: inventory_nut("nut.output", info))
check_info["nut.load"]	        =	(lambda item, params, info: check_nut_value(item, params, info,"ups.load", "load", "Load is %d%%"),	'NUT %s Load Percentage',		1,	lambda info: inventory_nut("nut.load", info))
check_info["nut.temp"]	        =	(lambda item, params, info: check_nut_value(item, params, info,"ups.temperature", "temp", "Temperature is %0.1fC"),	'NUT %s Temperature',			1,	lambda info: inventory_nut("nut.temp", info))
check_info["nut.beeper"]		=	(check_nut_beeper,		'NUT %s Beeper Status',			0,	lambda info: inventory_nut("nut.beeper", info))
check_info["nut.delay"]			=	(check_nut_delay,		'NUT %s Delay settings',		0,	lambda info: inventory_nut("nut.delay", info))
check_info["nut.status"]		=	(check_nut_status,		'NUT %s Status',				0,	lambda info: inventory_nut("nut.status", info))