def main(conf_file):
# load config
config = json.load(open(conf_file, "r"))
data = {"queue": []}
statefile = os.path.expanduser(config["twiliq"]["statefile"])
# load state if it exists
try:
data = json.load(open(statefile, "r"))
logging.info("Existing state loaded - %d entries in queue" % len(data["queue"]))
except IOError:
logging.info("State file %s does not exist - starting from scratch" % statefile)
# setup for timer thread and synchronization
lock = threading.Lock()
sleeper = [None]
# parse cronline
cron = croniter(config["twiliq"]["cronline"], datetime.now())
# interrupt handler to kill sleeper thread
def interrupt(x, y):
if sleeper[0]:
sleeper[0].cancel()
raise KeyboardInterrupt
signal.signal(signal.SIGINT, interrupt)
# incoming mms handler
def cb(from_num, body, media_list):
if not from_num in config["twiliq"]["whitelist"]:
logging.info("Incoming message from unlisted number %s" % from_num)
return
if body == "~STATUS":
return "Queue contains %d items" % len(data["queue"])
else:
url_list = [url for _, url in media_list]
with lock:
data["queue"].append((body, url_list))
logging.info("Added message: (%s, %s)" % (body, url_list))
json.dump(data, open(statefile, "w"))
# setup twilio client
tw = twilio_wrapper(
config["twilio"]["account"], config["twilio"]["token"], config["twilio"]["number"], config["twilio"]["url"], cb
)
# sleeper thread timeout routine
def tick(send_now=True):
# send_now is skipped on the first call to tick()
if send_now:
try:
with lock:
body, urls = data["queue"].pop(0)
json.dump(data, open(statefile, "w"))
# legacy support - if urls is not a list, encapsulate it in a list
if not isinstance(urls, list):
urls = [urls]
logging.info("Transmitting: (%s, %s)" % (body, urls))
tw.mms(config["twiliq"]["recipients"], body, urls)
except IndexError as e:
logging.warning("Tried to transmit, but queue is empty")
except TwilioRestException as e:
logging.error("Error transmitting message to Twilio")
logging.exception(e)
except Exception as e:
logging.error("Unhandled exception")
logging.exception(e)
# figure out when to run next tick - if cron says to run it in
# the past, just run it now
delta = max(timedelta(0), cron.get_next(datetime) - datetime.now()).total_seconds()
logging.debug("Next event scheduled in %s seconds" % delta)
# start the timer
sleeper[0] = threading.Timer(delta, tick, ())
sleeper[0].start()
# start sleeper
tick(False)
# start listener
app = tw.get_listener()
app.run(host=config["twiliq"]["listen"], port=config["twiliq"]["port"])
def main(conf_file):
# load config
config = json.load(open(conf_file, 'r'))
data = {
'queue': []
}
statefile = os.path.expanduser(config['twiliq']['statefile'])
# load state if it exists
try:
data = json.load(open(statefile, 'r'))
logging.info("Existing state loaded - %d entries in queue" % len(data['queue']))
except IOError:
logging.info("State file %s does not exist - starting from scratch" % statefile)
# setup for timer thread and synchronization
lock = threading.Lock()
sleeper = [None]
# interrupt handler to kill sleeper thread
def interrupt(x, y):
if sleeper[0]:
sleeper[0].cancel()
raise KeyboardInterrupt
signal.signal(signal.SIGINT, interrupt)
# incoming mms handler
def cb(from_num, body, media_list):
if not from_num in config['twiliq']['whitelist']:
logging.info("Incoming message from unlisted number %s" % from_num)
return
if len(media_list) == 0:
logging.info("Got message with no attachments")
return
with lock:
for media_type, url in media_list:
data['queue'].append((body, url))
logging.info("Added message: (%s, %s)" % (body, url))
json.dump(data, open(statefile, 'w'))
# setup twilio client
tw = twilio_wrapper(
config['twilio']['account'],
config['twilio']['token'],
config['twilio']['number'],
cb
)
# sleeper thread timeout routine
def tick(send_now=True):
if send_now:
try:
with lock:
body, url = data['queue'].pop(0)
json.dump(data, open(statefile, 'w'))
logging.info("Transmitting: (%s, %s)" % (body, url))
tw.mms(config['twiliq']['recipients'], body, url)
except IndexError as e:
logging.warning("Tried to transmit, but queue is empty")
except TwilioRestException as e:
logging.error("Error transmitting message to Twilio")
logging.exception(e)
except Exception as e:
logging.error("Unhandled exception")
logging.exception(e)
sleeper[0] = threading.Timer(
config['twiliq']['period'],
tick,
()
)
sleeper[0].start()
# start sleeper
tick(False)
# start listener
app = tw.get_listener()
app.run(host=config['twiliq']['listen'], port=config['twiliq']['port'])