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#!/usr/bin/env python2.7
# encoding: utf-8
import os
import sys
os.environ["USB_DEVFS_PATH"] = "/dev/bus/usb/temper"
import socket
import temper
import threading
import time
import Queue
import smtplib
import logging
from collections import deque, namedtuple
from email.mime.text import MIMEText
from email.Utils import formatdate
logging.basicConfig(format='%(asctime)s:%(name)s:%(levelname)s:%(message)s', level=logging.DEBUG)
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
READINGINTERVAL = 10
UNIX_SOCKET = "/var/run/collectd-unixsock"
HOSTNAME = "hugin.stusta.mhn.de"
FLOOR_LIMIT = 25
CEILING_LIMIT = 30
def __init__(self, export_queue, mail_queue):
self.export_queue = export_queue
self.mail_queue = mail_queue
def queue_mail(self, floor, ceiling, outdoor):
logger.debug("write mail ...")
body = u'''DON'T PANIC!
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... aber die Temperatur im Serverraum beträgt:
Boden: {:.2f} ℃
Decke: {:.2f} ℃
Outdoor: {:.2f} ℃
Der Temperator
--
oooo$$$$$$$$$$$$oooo
oo$$$$$$$$$$$$$$$$$$$$$$$$o
oo$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$o o$ $$ o$
o $ oo o$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$o $$ $$ $$o$
oo $ $ "$ o$$$$$$$$$ $$$$$$$$$$$$$ $$$$$$$$$o $$$o$$o$
"$$$$$$o$ o$$$$$$$$$ $$$$$$$$$$$ $$$$$$$$$$o $$$$$$$$
$$$$$$$ $$$$$$$$$$$ $$$$$$$$$$$ $$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$ $$$$$$$$$$$$$ $$$$$$$$$$$$$$ """$$$
"$$$""""$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "$$$
$$$ o$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "$$$o
o$$" $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $$$o
$$$ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$" "$$$$$$ooooo$$$$o
o$$$oooo$$$$$ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ o$$$$$$$$$$$$$$$$$
$$$$$$$$"$$$$ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $$$$""""""""
"""" $$$$ "$$$$$$$$$$$$$$$$$$$$$$$$$$$$" o$$$
"$$$o """$$$$$$$$$$$$$$$$$$"$$" $$$
$$$o "$$""$$$$$$"""" o$$$
$$$$o o$$$"
"$$$$o o$$$$$$o"$$$$o o$$$$
"$$$$$oo ""$$$$o$$$$$o o$$$$""
""$$$$$oooo "$$$o$$$$$$$$$"""
""$$$$$$$oo $$$$$$$$$$
""""$$$$$$$$$$$
$$$$$$$$$$$$
$$$$$$$$$$"
"$$$""""
'''
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msg = MIMEText(body.format(floor, ceiling, outdoor), _charset="UTF-8")
src = "Temperator <root@hugin.stusta.mhn.de>"
msg['Subject'] = u"Temperaturalarm Serverraum"
msg['From'] = src
if SPAM:
dst = ["jn@stusta.de", "maxi@stusta.de", "markus.hefele@stusta.net"]
else:
dst = ["admins@stustanet.de"]
msg['To'] = ", ".join(dst)
msg['Date'] = formatdate(localtime=True)
self.mail_queue.put((src, dst, msg.as_string()))
def run(self):
while True:
logger.debug("reading loop")
start = time.time()
try:
th = temper.TemperHandler()
# TODO naming things is hard!
for i, temp_device in th._devices.iteritems():
temp_sensor = temperature_sensors.get(i)
if temp_sensor:
try:
temp_c = temp_device.get_temperature(calibration=temp_sensor.calibration)
record = temp_sensor.update(temp_c)
self.export_queue.put(record)
except Exception as e:
logger.debug(e)
#logger.exception(e)
except Exception as e:
logger.exception(e)
try:
ow.init( 'localhost:4304' )
for a, owid in iter(temperature_sensors):
if a == 'serial':
temp_sensor = temperature_sensors.get((a, owid))
try:
temp_c = float(ow.Sensor( '/uncached/'+ owid ).temperature)
if temp_c != float('85'):
record = temp_sensor.update(temp_c)
self.export_queue.put(record)
except Exception as e:
logger.debug(e)
# memory leak?
#ow.finish()
except Exception as e:
logger.exception(e)
self.iteration += 1
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now = time.time()
floor, floor_last, floor_avg = temperature_sensors_usb_by_name['floor'].get_current_and_average()
ceiling, ceiling_last, ceiling_avg = temperature_sensors_usb_by_name['ceiling'].get_current_and_average()
outdoor, outdoor_last, outdoor_avg = temperature_sensors_usb_by_name['outdoor'].get_current_and_average()
falling = False
if (floor is not None and floor_avg is not None and floor <= floor_avg and
ceiling is not None and ceiling_avg is not None and ceiling <= ceiling_avg and
outdoor is not None and outdoor_avg is not None and outdoor <= outdoor_avg):
falling = True
# error case: some sensor is not working!
error = False
if floor is None or (floor_last is not None and floor_last + MAILINTERVAL < now):
error = True
floor = 9000
if ceiling is None or (ceiling_last is not None and ceiling_last + MAILINTERVAL < now):
error = True
ceiling = 9001
if outdoor is None or (outdoor_last is not None and outdoor_last + MAILINTERVAL < now):
# for the difference ...
error = True
outdoor = 0
if (self.iteration > 1 and self.last_mail + MAILINTERVAL < now and
(error or (not falling and
((floor > FLOOR_LIMIT and floor - MAX_OUTDOOR_DIFF > outdoor) or
(ceiling > CEILING_LIMIT and ceiling - MAX_OUTDOOR_DIFF > outdoor))))):
self.last_mail = now
self.queue_mail(floor, ceiling, outdoor)
wait = start + READINGINTERVAL - time.time()
if wait > 0:
time.sleep(wait)
def __init__(self, mail_queue):
self.mail_queue = mail_queue
sender, recipient, msg = self.mail_queue.get(True, 3600)
except Queue.Empty as e:
logger.debug(e)
continue
try:
s = smtplib.SMTP("localhost")
s.sendmail(sender, recipient, msg)
s.quit()
except Exception as e:
logger.debug(e)
CollectdRecord = namedtuple("CollectdRecord", ["hostname", "path", "interval", "epoch", "value"])
def __init__(self, export_queue):
threading.Thread.__init__(self)
self.socket = None
# CollectdRecords
self.export_queue = export_queue
record = None
try:
record = self.export_queue.get(True, 3600)
except Queue.Empty as e:
continue
if not self.socket:
s = socket.socket(socket.AF_UNIX)
try:
s.connect(UNIX_SOCKET)
logger.debug(e)
time.sleep(1)
continue
data = "PUTVAL \"%s/%s\" interval=%i %i:%s\n" % \
(record.hostname, record.path, int(record.interval), int(record.epoch), record.value)
try:
logger.debug("socket write: %s", data.strip())
self.socket.send(data)
recv = []
while True:
try:
recv = self.socket.recv(1<<12)
except socket.error as e:
if e.errno == 11: #EAGAIN
break
raise e
recv = ''.join(recv)
logger.debug("socket read: %s", recv.strip())
except Exception as e:
logger.debug(e)
try:
self.socket.close()
except:
pass
self.socket = None
class TempSensor(object):
def __init__(self, name):
self._path = "tail-temperature/temperature-%s" % (name, )
self._interval = READINGINTERVAL
self.last_updated = None
self.temperature = None
self.history = deque()
self._lock = threading.RLock()
def update(self, temperature):
with self._lock:
now = time.time()
while self.history and self.history[0][1] < (now - MAILINTERVAL):
self.history.popleft()
if self.last_updated is not None and self.temperature is not None:
self.history.append((self.temperature, self.last_updated))
self.last_updated = now
logger.debug("update %s", self)
return CollectdRecord(HOSTNAME, self._path, int(self._interval),
int(self.last_updated), "%f" % (self.temperature,))
def get_current_and_average(self):
avg = None
if self.history:
avg = float(sum(i[0] for i in self.history))/len(self.history)
return self.temperature, self.last_updated, avg
return "%s temperature: %s, last_updated:%s" % \
(self.name, self.temperature, self.last_updated)
class TempSensorUSB(TempSensor):
def __init__(self, name, calibration, bus, device):
super(TempSensorUSB, self).__init__(name)
self.calibration = calibration
self.bus = bus
self.device = device
@property
def usb_id(self):
return self.bus, self.device
def __str__(self):
return "%s (bus:%s, device:%s, calibration:%i) temperature: %s, last_updated:%s" % \
(self.name, self.bus, self.device, self.calibration, self.temperature, self.last_updated)
class TempSensorSerial(TempSensor):
def __init__(self, name, owid):
super(TempSensorSerial, self).__init__(name)
self.owid = owid
def __str__(self):
with self._lock:
return "%s (owid:%s) temperature: %s, last_updated:%s" % \
(self.name, self.owid, self.temperature, self.last_updated)
#TODO:Type in key, only one dict?
temperature_sensors_usb_by_name = {}
temperature_sensors_serial_by_name = {}
for name, calibration, bus, device in [('floor', 500, '001', '001'), ('ceiling', 300, '002', '001'), ('outdoor', 330, '003', '001')]:
temperature_sensors[(bus, device)] = TempSensorUSB(name, calibration, bus, device)
temperature_sensors_usb_by_name[name] = temperature_sensors[(bus, device)]
for name, owid in [('floorserial', '10.C238A5010800'), ('ceilserial', '10.0C33A5010800')]:
temperature_sensors[('serial', owid)] = TempSensorSerial(name, owid)
temperature_sensors_serial_by_name[name] = temperature_sensors[('serial', owid)]
mail_queue = Queue.Queue()
export_queue = Queue.Queue()
readerfred = TempReader(export_queue, mail_queue)
readerfred.setDaemon(True)
readerfred.start()
exp0rtfred = Exp0rt0r(export_queue)
exp0rtfred.setDaemon(True)
exp0rtfred.start()
mail0r = Mail0r(mail_queue)