class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue("Bot", tick_interval=0.005)
self.result = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
stop_con_pool()
def job1(self, bot):
self.result += 1
def job2(self, bot):
raise Exception("Test Error")
def test_basic(self):
self.jq.put(self.job1, 0.1)
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_noRepeat(self):
self.jq.put(self.job1, 0.1, repeat=False)
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(self.job1, 0.1, next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(self.job1, 0.1, repeat=False)
self.jq.put(self.job1, 0.2, repeat=False)
self.jq.put(self.job1, 0.4)
sleep(1)
self.assertEqual(4, self.result)
def test_error(self):
self.jq.put(self.job2, 0.1)
self.jq.put(self.job1, 0.2)
self.jq.start()
sleep(0.4)
self.assertEqual(1, self.result)
def test_inUpdater(self):
u = Updater(bot="MockBot", job_queue_tick_interval=0.005)
u.job_queue.put(self.job1, 0.5)
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue(MockBot('jobqueue_test'))
self.jq.start()
self.result = 0
self.job_time = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
def getSeconds(self):
return int(ceil(time.time()))
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def job5(self, bot, job):
self.job_time = self.getSeconds()
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
u.job_queue.start()
try:
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
finally:
u.stop()
def test_time_unit_int(self):
# Testing seconds in int
seconds_interval = 5
expected_time = self.getSeconds() + seconds_interval
self.jq.put(Job(self.job5, seconds_interval, repeat=False))
sleep(6)
self.assertEqual(self.job_time, expected_time)
def test_time_unit_dt_time(self):
# Testing seconds, minutes and hours as datetime.timedelta object
# This is sufficient to test that it actually works.
interval = datetime.timedelta(seconds=5)
expected_time = self.getSeconds() + interval.total_seconds()
self.jq.put(Job(self.job5, interval, repeat=False))
sleep(6)
self.assertEqual(self.job_time, expected_time)
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue("Bot")
self.result = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
stop_con_pool()
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
self.jq.start()
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
class Updater(object):
"""
This class, which employs the :class:`telegram.ext.Dispatcher`, provides a frontend to
:class:`telegram.Bot` to the programmer, so they can focus on coding the bot. Its purpose is to
receive the updates from Telegram and to deliver them to said dispatcher. It also runs in a
separate thread, so the user can interact with the bot, for example on the command line. The
dispatcher supports handlers for different kinds of data: Updates from Telegram, basic text
commands and even arbitrary types. The updater can be started as a polling service or, for
production, use a webhook to receive updates. This is achieved using the WebhookServer and
WebhookHandler classes.
Attributes:
bot (:class:`telegram.Bot`): The bot used with this Updater.
user_sig_handler (:obj:`signal`): signals the updater will respond to.
update_queue (:obj:`Queue`): Queue for the updates.
job_queue (:class:`telegram.ext.JobQueue`): Jobqueue for the updater.
dispatcher (:class:`telegram.ext.Dispatcher`): Dispatcher that handles the updates and
dispatches them to the handlers.
running (:obj:`bool`): Indicates if the updater is running.
Args:
token (:obj:`str`, optional): The bot's token given by the @BotFather.
base_url (:obj:`str`, optional): Base_url for the bot.
workers (:obj:`int`, optional): Amount of threads in the thread pool for functions
decorated with ``@run_async``.
bot (:class:`telegram.Bot`, optional): A pre-initialized bot instance. If a pre-initialized
bot is used, it is the user's responsibility to create it using a `Request`
instance with a large enough connection pool.
user_sig_handler (:obj:`function`, optional): Takes ``signum, frame`` as positional
arguments. This will be called when a signal is received, defaults are (SIGINT,
SIGTERM, SIGABRT) setable with :attr:`idle`.
request_kwargs (:obj:`dict`, optional): Keyword args to control the creation of a
`telegram.utils.request.Request` object (ignored if `bot` argument is used). The
request_kwargs are very useful for the advanced users who would like to control the
default timeouts and/or control the proxy used for http communication.
Note:
You must supply either a :attr:`bot` or a :attr:`token` argument.
Raises:
ValueError: If both :attr:`token` and :attr:`bot` are passed or none of them.
"""
_request = None
def __init__(self,
token=None,
base_url=None,
workers=4,
bot=None,
user_sig_handler=None,
request_kwargs=None):
if (token is None) and (bot is None):
raise ValueError('`token` or `bot` must be passed')
if (token is not None) and (bot is not None):
raise ValueError('`token` and `bot` are mutually exclusive')
self.logger = logging.getLogger(__name__)
con_pool_size = workers + 4
if bot is not None:
self.bot = bot
if bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size)
else:
# we need a connection pool the size of:
# * for each of the workers
# * 1 for Dispatcher
# * 1 for polling Updater (even if webhook is used, we can spare a connection)
# * 1 for JobQueue
# * 1 for main thread
if request_kwargs is None:
request_kwargs = {}
if 'con_pool_size' not in request_kwargs:
request_kwargs['con_pool_size'] = con_pool_size
self._request = Request(**request_kwargs)
self.bot = Bot(token, base_url, request=self._request)
self.user_sig_handler = user_sig_handler
self.update_queue = Queue()
self.job_queue = JobQueue(self.bot)
self.__exception_event = Event()
self.dispatcher = Dispatcher(
self.bot,
self.update_queue,
job_queue=self.job_queue,
workers=workers,
exception_event=self.__exception_event)
self.last_update_id = 0
self.running = False
self.is_idle = False
self.httpd = None
self.__lock = Lock()
self.__threads = []
def _init_thread(self, target, name, *args, **kwargs):
thr = Thread(target=self._thread_wrapper, name=name, args=(target,) + args, kwargs=kwargs)
thr.start()
self.__threads.append(thr)
def _thread_wrapper(self, target, *args, **kwargs):
thr_name = current_thread().name
self.logger.debug('{0} - started'.format(thr_name))
try:
target(*args, **kwargs)
except Exception:
self.__exception_event.set()
self.logger.exception('unhandled exception in %s', thr_name)
raise
self.logger.debug('{0} - ended'.format(thr_name))
def start_polling(self,
poll_interval=0.0,
timeout=10,
clean=False,
bootstrap_retries=-1,
read_latency=2.,
allowed_updates=None):
"""Starts polling updates from Telegram.
Args:
poll_interval (:obj:`float`, optional): Time to wait between polling updates from
Telegram in seconds. Default is 0.0.
timeout (:obj:`float`, optional): Passed to :attr:`telegram.Bot.get_updates`.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting to poll. Default is False.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.get_updates`.
read_latency (:obj:`float` | :obj:`int`, optional): Grace time in seconds for receiving
the reply from server. Will be added to the `timeout` value and used as the read
timeout from server (Default: 2).
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
dispatcher_ready = Event()
self._init_thread(self.dispatcher.start, "dispatcher", ready=dispatcher_ready)
self._init_thread(self._start_polling, "updater", poll_interval, timeout,
read_latency, bootstrap_retries, clean, allowed_updates)
dispatcher_ready.wait()
# Return the update queue so the main thread can insert updates
return self.update_queue
def start_webhook(self,
listen='127.0.0.1',
port=80,
url_path='',
cert=None,
key=None,
clean=False,
bootstrap_retries=0,
webhook_url=None,
allowed_updates=None):
"""
Starts a small http server to listen for updates via webhook. If cert
and key are not provided, the webhook will be started directly on
http://listen:port/url_path, so SSL can be handled by another
application. Else, the webhook will be started on
https://listen:port/url_path
Args:
listen (:obj:`str`, optional): IP-Address to listen on. Default ``127.0.0.1``.
port (:obj:`int`, optional): Port the bot should be listening on. Default ``80``.
url_path (:obj:`str`, optional): Path inside url.
cert (:obj:`str`, optional): Path to the SSL certificate file.
key (:obj:`str`, optional): Path to the SSL key file.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting the webhook. Default is ``False``.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
webhook_url (:obj:`str`, optional): Explicitly specify the webhook url. Useful behind
NAT, reverse proxy, etc. Default is derived from `listen`, `port` & `url_path`.
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.set_webhook`.
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher"),
self._init_thread(self._start_webhook, "updater", listen, port, url_path, cert,
key, bootstrap_retries, clean, webhook_url, allowed_updates)
# Return the update queue so the main thread can insert updates
return self.update_queue
def _start_polling(self, poll_interval, timeout, read_latency, bootstrap_retries, clean,
allowed_updates): # pragma: no cover
# Thread target of thread 'updater'. Runs in background, pulls
# updates from Telegram and inserts them in the update queue of the
# Dispatcher.
self.logger.debug('Updater thread started (polling)')
self._bootstrap(bootstrap_retries, clean=clean, webhook_url='', allowed_updates=None)
self.logger.debug('Bootstrap done')
def polling_action_cb():
updates = self.bot.get_updates(
self.last_update_id, timeout=timeout, read_latency=read_latency,
allowed_updates=allowed_updates)
if updates:
if not self.running:
self.logger.debug('Updates ignored and will be pulled again on restart')
else:
for update in updates:
self.update_queue.put(update)
self.last_update_id = updates[-1].update_id + 1
return True
def polling_onerr_cb(exc):
# Put the error into the update queue and let the Dispatcher
# broadcast it
self.update_queue.put(exc)
self._network_loop_retry(polling_action_cb, polling_onerr_cb, 'getting Updates',
poll_interval)
def _network_loop_retry(self, action_cb, onerr_cb, description, interval):
"""Perform a loop calling `action_cb`, retrying after network errors.
Stop condition for loop: `self.running` evaluates False or return value of `action_cb`
evaluates False.
Args:
action_cb (:obj:`callable`): Network oriented callback function to call.
onerr_cb (:obj:`callable`): Callback to call when TelegramError is caught. Receives the
exception object as a parameter.
description (:obj:`str`): Description text to use for logs and exception raised.
interval (:obj:`float` | :obj:`int`): Interval to sleep between each call to
`action_cb`.
"""
self.logger.debug('Start network loop retry %s', description)
cur_interval = interval
while self.running:
try:
if not action_cb():
break
except RetryAfter as e:
self.logger.info('%s', e)
cur_interval = 0.5 + e.retry_after
except TimedOut as toe:
self.logger.debug('Timed out %s: %s', description, toe)
# If failure is due to timeout, we should retry asap.
cur_interval = 0
except InvalidToken as pex:
self.logger.error('Invalid token; aborting')
raise pex
except TelegramError as te:
self.logger.error('Error while %s: %s', description, te)
onerr_cb(te)
cur_interval = self._increase_poll_interval(cur_interval)
else:
cur_interval = interval
if cur_interval:
sleep(cur_interval)
@staticmethod
def _increase_poll_interval(current_interval):
# increase waiting times on subsequent errors up to 30secs
if current_interval == 0:
current_interval = 1
elif current_interval < 30:
current_interval += current_interval / 2
elif current_interval > 30:
current_interval = 30
return current_interval
def _start_webhook(self, listen, port, url_path, cert, key, bootstrap_retries, clean,
webhook_url, allowed_updates):
self.logger.debug('Updater thread started (webhook)')
use_ssl = cert is not None and key is not None
if not url_path.startswith('/'):
url_path = '/{0}'.format(url_path)
# Create and start server
self.httpd = WebhookServer((listen, port), WebhookHandler, self.update_queue, url_path,
self.bot)
if use_ssl:
self._check_ssl_cert(cert, key)
# DO NOT CHANGE: Only set webhook if SSL is handled by library
if not webhook_url:
webhook_url = self._gen_webhook_url(listen, port, url_path)
self._bootstrap(
max_retries=bootstrap_retries,
clean=clean,
webhook_url=webhook_url,
cert=open(cert, 'rb'),
allowed_updates=allowed_updates)
elif clean:
self.logger.warning("cleaning updates is not supported if "
"SSL-termination happens elsewhere; skipping")
self.httpd.serve_forever(poll_interval=1)
def _check_ssl_cert(self, cert, key):
# Check SSL-Certificate with openssl, if possible
try:
exit_code = subprocess.call(
["openssl", "x509", "-text", "-noout", "-in", cert],
stdout=open(os.devnull, 'wb'),
stderr=subprocess.STDOUT)
except OSError:
exit_code = 0
if exit_code == 0:
try:
self.httpd.socket = ssl.wrap_socket(
self.httpd.socket, certfile=cert, keyfile=key, server_side=True)
except ssl.SSLError as error:
self.logger.exception('Failed to init SSL socket')
raise TelegramError(str(error))
else:
raise TelegramError('SSL Certificate invalid')
@staticmethod
def _gen_webhook_url(listen, port, url_path):
return 'https://{listen}:{port}{path}'.format(listen=listen, port=port, path=url_path)
def _bootstrap(self, max_retries, clean, webhook_url, allowed_updates, cert=None,
bootstrap_interval=5):
retries = [0]
def bootstrap_del_webhook():
self.bot.delete_webhook()
return False
def bootstrap_clean_updates():
self.logger.debug('Cleaning updates from Telegram server')
updates = self.bot.get_updates()
while updates:
updates = self.bot.get_updates(updates[-1].update_id + 1)
return False
def bootstrap_set_webhook():
self.bot.set_webhook(
url=webhook_url, certificate=cert, allowed_updates=allowed_updates)
return False
def bootstrap_onerr_cb(exc):
if not isinstance(exc, Unauthorized) and (max_retries < 0 or retries[0] < max_retries):
retries[0] += 1
self.logger.warning('Failed bootstrap phase; try=%s max_retries=%s',
retries[0], max_retries)
else:
self.logger.error('Failed bootstrap phase after %s retries (%s)', retries[0], exc)
raise exc
# Cleaning pending messages is done by polling for them - so we need to delete webhook if
# one is configured.
# We also take this chance to delete pre-configured webhook if this is a polling Updater.
# NOTE: We don't know ahead if a webhook is configured, so we just delete.
if clean or not webhook_url:
self._network_loop_retry(bootstrap_del_webhook, bootstrap_onerr_cb,
'bootstrap del webhook', bootstrap_interval)
retries[0] = 0
# Clean pending messages, if requested.
if clean:
self._network_loop_retry(bootstrap_clean_updates, bootstrap_onerr_cb,
'bootstrap clean updates', bootstrap_interval)
retries[0] = 0
sleep(1)
# Restore/set webhook settings, if needed. Again, we don't know ahead if a webhook is set,
# so we set it anyhow.
if webhook_url:
self._network_loop_retry(bootstrap_set_webhook, bootstrap_onerr_cb,
'bootstrap set webhook', bootstrap_interval)
def stop(self):
"""Stops the polling/webhook thread, the dispatcher and the job queue."""
self.job_queue.stop()
with self.__lock:
if self.running or self.dispatcher.has_running_threads:
self.logger.debug('Stopping Updater and Dispatcher...')
self.running = False
self._stop_httpd()
self._stop_dispatcher()
self._join_threads()
# Stop the Request instance only if it was created by the Updater
if self._request:
self._request.stop()
def _stop_httpd(self):
if self.httpd:
self.logger.debug('Waiting for current webhook connection to be '
'closed... Send a Telegram message to the bot to exit '
'immediately.')
self.httpd.shutdown()
self.httpd = None
def _stop_dispatcher(self):
self.logger.debug('Requesting Dispatcher to stop...')
self.dispatcher.stop()
def _join_threads(self):
for thr in self.__threads:
self.logger.debug('Waiting for {0} thread to end'.format(thr.name))
thr.join()
self.logger.debug('{0} thread has ended'.format(thr.name))
self.__threads = []
def signal_handler(self, signum, frame):
self.is_idle = False
if self.running:
self.logger.info('Received signal {} ({}), stopping...'.format(
signum, get_signal_name(signum)))
self.stop()
if self.user_sig_handler:
self.user_sig_handler(signum, frame)
else:
self.logger.warning('Exiting immediately!')
import os
os._exit(1)
def idle(self, stop_signals=(SIGINT, SIGTERM, SIGABRT)):
"""Blocks until one of the signals are received and stops the updater.
Args:
stop_signals (:obj:`iterable`): Iterable containing signals from the signal module that
should be subscribed to. Updater.stop() will be called on receiving one of those
signals. Defaults to (``SIGINT``, ``SIGTERM``, ``SIGABRT``).
"""
for sig in stop_signals:
signal(sig, self.signal_handler)
self.is_idle = True
while self.is_idle:
sleep(1)
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue(MockBot('jobqueue_test'))
self.jq.start()
self.result = 0
self.job_time = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def job5(self, bot, job):
self.job_time = time.time()
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
u.job_queue.start()
try:
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
finally:
u.stop()
def test_time_unit_int(self):
# Testing seconds in int
delta = 2
expected_time = time.time() + delta
self.jq.put(Job(self.job5, delta, repeat=False))
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_timedelta(self):
# Testing seconds, minutes and hours as datetime.timedelta object
# This is sufficient to test that it actually works.
interval = datetime.timedelta(seconds=2)
expected_time = time.time() + interval.total_seconds()
self.jq.put(Job(self.job5, interval, repeat=False))
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_datetime(self):
# Testing running at a specific datetime
delta = datetime.timedelta(seconds=2)
next_t = datetime.datetime.now() + delta
expected_time = time.time() + delta.total_seconds()
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_time_today(self):
# Testing running at a specific time today
delta = 2
next_t = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + delta
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_time_tomorrow(self):
# Testing running at a specific time that has passed today. Since we can't wait a day, we
# test if the jobs next_t has been calculated correctly
delta = -2
next_t = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + delta + 60 * 60 * 24
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
self.assertAlmostEqual(self.jq.queue.get(False)[0], expected_time, delta=0.1)
def test_run_once(self):
delta = 2
expected_time = time.time() + delta
self.jq.run_once(self.job5, delta)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_run_repeating(self):
interval = 0.1
first = 1.5
self.jq.run_repeating(self.job1, interval, first=first)
sleep(2.505)
self.assertAlmostEqual(self.result, 10, delta=1)
def test_run_daily(self):
delta = 1
time_of_day = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + 60 * 60 * 24 + delta
self.jq.run_daily(self.job1, time_of_day)
sleep(2 * delta)
self.assertEqual(self.result, 1)
self.assertAlmostEqual(self.jq.queue.get(False)[0], expected_time, delta=0.1)
def job_queue(bot):
jq = JobQueue(bot)
jq.start()
yield jq
jq.stop()
class Updater:
"""
This class, which employs the :class:`telegram.ext.Dispatcher`, provides a frontend to
:class:`telegram.Bot` to the programmer, so they can focus on coding the bot. Its purpose is to
receive the updates from Telegram and to deliver them to said dispatcher. It also runs in a
separate thread, so the user can interact with the bot, for example on the command line. The
dispatcher supports handlers for different kinds of data: Updates from Telegram, basic text
commands and even arbitrary types. The updater can be started as a polling service or, for
production, use a webhook to receive updates. This is achieved using the WebhookServer and
WebhookHandler classes.
Attributes:
bot (:class:`telegram.Bot`): The bot used with this Updater.
user_sig_handler (:obj:`function`): Optional. Function to be called when a signal is
received.
update_queue (:obj:`Queue`): Queue for the updates.
job_queue (:class:`telegram.ext.JobQueue`): Jobqueue for the updater.
dispatcher (:class:`telegram.ext.Dispatcher`): Dispatcher that handles the updates and
dispatches them to the handlers.
running (:obj:`bool`): Indicates if the updater is running.
persistence (:class:`telegram.ext.BasePersistence`): Optional. The persistence class to
store data that should be persistent over restarts.
use_context (:obj:`bool`): Optional. :obj:`True` if using context based callbacks.
Args:
token (:obj:`str`, optional): The bot's token given by the @BotFather.
base_url (:obj:`str`, optional): Base_url for the bot.
base_file_url (:obj:`str`, optional): Base_file_url for the bot.
workers (:obj:`int`, optional): Amount of threads in the thread pool for functions
decorated with ``@run_async`` (ignored if `dispatcher` argument is used).
bot (:class:`telegram.Bot`, optional): A pre-initialized bot instance (ignored if
`dispatcher` argument is used). If a pre-initialized bot is used, it is the user's
responsibility to create it using a `Request` instance with a large enough connection
pool.
dispatcher (:class:`telegram.ext.Dispatcher`, optional): A pre-initialized dispatcher
instance. If a pre-initialized dispatcher is used, it is the user's responsibility to
create it with proper arguments.
private_key (:obj:`bytes`, optional): Private key for decryption of telegram passport data.
private_key_password (:obj:`bytes`, optional): Password for above private key.
user_sig_handler (:obj:`function`, optional): Takes ``signum, frame`` as positional
arguments. This will be called when a signal is received, defaults are (SIGINT,
SIGTERM, SIGABRT) settable with :attr:`idle`.
request_kwargs (:obj:`dict`, optional): Keyword args to control the creation of a
`telegram.utils.request.Request` object (ignored if `bot` or `dispatcher` argument is
used). The request_kwargs are very useful for the advanced users who would like to
control the default timeouts and/or control the proxy used for http communication.
use_context (:obj:`bool`, optional): If set to :obj:`True` uses the context based callback
API (ignored if `dispatcher` argument is used). Defaults to :obj:`True`.
**New users**: set this to :obj:`True`.
persistence (:class:`telegram.ext.BasePersistence`, optional): The persistence class to
store data that should be persistent over restarts (ignored if `dispatcher` argument is
used).
defaults (:class:`telegram.ext.Defaults`, optional): An object containing default values to
be used if not set explicitly in the bot methods.
Note:
* You must supply either a :attr:`bot` or a :attr:`token` argument.
* If you supply a :attr:`bot`, you will need to pass :attr:`defaults` to *both* the bot and
the :class:`telegram.ext.Updater`.
Raises:
ValueError: If both :attr:`token` and :attr:`bot` are passed or none of them.
"""
_request = None
def __init__(
self,
token: str = None,
base_url: str = None,
workers: int = 4,
bot: Bot = None,
private_key: bytes = None,
private_key_password: bytes = None,
user_sig_handler: Callable = None,
request_kwargs: Dict[str, Any] = None,
persistence: 'BasePersistence' = None,
defaults: 'Defaults' = None,
use_context: bool = True,
dispatcher: Dispatcher = None,
base_file_url: str = None,
):
if defaults and bot:
warnings.warn(
'Passing defaults to an Updater has no effect when a Bot is passed '
'as well. Pass them to the Bot instead.',
TelegramDeprecationWarning,
stacklevel=2,
)
if dispatcher is None:
if (token is None) and (bot is None):
raise ValueError('`token` or `bot` must be passed')
if (token is not None) and (bot is not None):
raise ValueError('`token` and `bot` are mutually exclusive')
if (private_key is not None) and (bot is not None):
raise ValueError(
'`bot` and `private_key` are mutually exclusive')
else:
if bot is not None:
raise ValueError(
'`dispatcher` and `bot` are mutually exclusive')
if persistence is not None:
raise ValueError(
'`dispatcher` and `persistence` are mutually exclusive')
if workers is not None:
raise ValueError(
'`dispatcher` and `workers` are mutually exclusive')
if use_context != dispatcher.use_context:
raise ValueError(
'`dispatcher` and `use_context` are mutually exclusive')
self.logger = logging.getLogger(__name__)
if dispatcher is None:
con_pool_size = workers + 4
if bot is not None:
self.bot = bot
if bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size,
)
else:
# we need a connection pool the size of:
# * for each of the workers
# * 1 for Dispatcher
# * 1 for polling Updater (even if webhook is used, we can spare a connection)
# * 1 for JobQueue
# * 1 for main thread
if request_kwargs is None:
request_kwargs = {}
if 'con_pool_size' not in request_kwargs:
request_kwargs['con_pool_size'] = con_pool_size
self._request = Request(**request_kwargs)
self.bot = Bot(
token, # type: ignore[arg-type]
base_url,
base_file_url=base_file_url,
request=self._request,
private_key=private_key,
private_key_password=private_key_password,
defaults=defaults,
)
self.update_queue: Queue = Queue()
self.job_queue = JobQueue()
self.__exception_event = Event()
self.persistence = persistence
self.dispatcher = Dispatcher(
self.bot,
self.update_queue,
job_queue=self.job_queue,
workers=workers,
exception_event=self.__exception_event,
persistence=persistence,
use_context=use_context,
)
self.job_queue.set_dispatcher(self.dispatcher)
else:
con_pool_size = dispatcher.workers + 4
self.bot = dispatcher.bot
if self.bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size,
)
self.update_queue = dispatcher.update_queue
self.__exception_event = dispatcher.exception_event
self.persistence = dispatcher.persistence
self.job_queue = dispatcher.job_queue
self.dispatcher = dispatcher
self.user_sig_handler = user_sig_handler
self.last_update_id = 0
self.running = False
self.is_idle = False
self.httpd = None
self.__lock = Lock()
self.__threads: List[Thread] = []
def _init_thread(self, target: Callable, name: str, *args: Any,
**kwargs: Any) -> None:
thr = Thread(
target=self._thread_wrapper,
name="Bot:{}:{}".format(self.bot.id, name),
args=(target, ) + args,
kwargs=kwargs,
)
thr.start()
self.__threads.append(thr)
def _thread_wrapper(self, target: Callable, *args: Any,
**kwargs: Any) -> None:
thr_name = current_thread().name
self.logger.debug('{} - started'.format(thr_name))
try:
target(*args, **kwargs)
except Exception:
self.__exception_event.set()
self.logger.exception('unhandled exception in %s', thr_name)
raise
self.logger.debug('{} - ended'.format(thr_name))
def start_polling(
self,
poll_interval: float = 0.0,
timeout: float = 10,
clean: bool = False,
bootstrap_retries: int = -1,
read_latency: float = 2.0,
allowed_updates: List[str] = None,
) -> Optional[Queue]:
"""Starts polling updates from Telegram.
Args:
poll_interval (:obj:`float`, optional): Time to wait between polling updates from
Telegram in seconds. Default is 0.0.
timeout (:obj:`float`, optional): Passed to :attr:`telegram.Bot.get_updates`.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting to poll. Default is :obj:`False`.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.get_updates`.
read_latency (:obj:`float` | :obj:`int`, optional): Grace time in seconds for receiving
the reply from server. Will be added to the `timeout` value and used as the read
timeout from server (Default: 2).
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
dispatcher_ready = Event()
polling_ready = Event()
self._init_thread(self.dispatcher.start,
"dispatcher",
ready=dispatcher_ready)
self._init_thread(
self._start_polling,
"updater",
poll_interval,
timeout,
read_latency,
bootstrap_retries,
clean,
allowed_updates,
ready=polling_ready,
)
self.logger.debug(
'Waiting for Dispatcher and polling to start')
dispatcher_ready.wait()
polling_ready.wait()
# Return the update queue so the main thread can insert updates
return self.update_queue
return None
def start_webhook(
self,
listen: str = '127.0.0.1',
port: int = 80,
url_path: str = '',
cert: str = None,
key: str = None,
clean: bool = False,
bootstrap_retries: int = 0,
webhook_url: str = None,
allowed_updates: List[str] = None,
force_event_loop: bool = False,
) -> Optional[Queue]:
"""
Starts a small http server to listen for updates via webhook. If cert
and key are not provided, the webhook will be started directly on
http://listen:port/url_path, so SSL can be handled by another
application. Else, the webhook will be started on
https://listen:port/url_path
Note:
Due to an incompatibility of the Tornado library PTB uses for the webhook with Python
3.8+ on Windows machines, PTB will attempt to set the event loop to
:attr:`asyncio.SelectorEventLoop` and raise an exception, if an incompatible event loop
has already been specified. See this `thread`_ for more details. To suppress the
exception, set :attr:`force_event_loop` to :obj:`True`.
.. _thread: https://github.com/tornadoweb/tornado/issues/2608
Args:
listen (:obj:`str`, optional): IP-Address to listen on. Default ``127.0.0.1``.
port (:obj:`int`, optional): Port the bot should be listening on. Default ``80``.
url_path (:obj:`str`, optional): Path inside url.
cert (:obj:`str`, optional): Path to the SSL certificate file.
key (:obj:`str`, optional): Path to the SSL key file.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting the webhook. Default is :obj:`False`.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
webhook_url (:obj:`str`, optional): Explicitly specify the webhook url. Useful behind
NAT, reverse proxy, etc. Default is derived from `listen`, `port` & `url_path`.
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.set_webhook`.
force_event_loop (:obj:`bool`, optional): Force using the current event loop. See above
note for details. Defaults to :obj:`False`
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
webhook_ready = Event()
dispatcher_ready = Event()
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher",
dispatcher_ready)
self._init_thread(
self._start_webhook,
"updater",
listen,
port,
url_path,
cert,
key,
bootstrap_retries,
clean,
webhook_url,
allowed_updates,
ready=webhook_ready,
force_event_loop=force_event_loop,
)
self.logger.debug(
'Waiting for Dispatcher and Webhook to start')
webhook_ready.wait()
dispatcher_ready.wait()
# Return the update queue so the main thread can insert updates
return self.update_queue
return None
@no_type_check
def _start_polling(
self,
poll_interval,
timeout,
read_latency,
bootstrap_retries,
clean,
allowed_updates,
ready=None,
): # pragma: no cover
# Thread target of thread 'updater'. Runs in background, pulls
# updates from Telegram and inserts them in the update queue of the
# Dispatcher.
self.logger.debug('Updater thread started (polling)')
self._bootstrap(bootstrap_retries,
clean=clean,
webhook_url='',
allowed_updates=None)
self.logger.debug('Bootstrap done')
def polling_action_cb():
updates = self.bot.get_updates(
self.last_update_id,
timeout=timeout,
read_latency=read_latency,
allowed_updates=allowed_updates,
)
if updates:
if not self.running:
self.logger.debug(
'Updates ignored and will be pulled again on restart')
else:
for update in updates:
self.update_queue.put(update)
self.last_update_id = updates[-1].update_id + 1
return True
def polling_onerr_cb(exc):
# Put the error into the update queue and let the Dispatcher
# broadcast it
self.update_queue.put(exc)
if ready is not None:
ready.set()
self._network_loop_retry(polling_action_cb, polling_onerr_cb,
'getting Updates', poll_interval)
@no_type_check
def _network_loop_retry(self, action_cb, onerr_cb, description, interval):
"""Perform a loop calling `action_cb`, retrying after network errors.
Stop condition for loop: `self.running` evaluates :obj:`False` or return value of
`action_cb` evaluates :obj:`False`.
Args:
action_cb (:obj:`callable`): Network oriented callback function to call.
onerr_cb (:obj:`callable`): Callback to call when TelegramError is caught. Receives the
exception object as a parameter.
description (:obj:`str`): Description text to use for logs and exception raised.
interval (:obj:`float` | :obj:`int`): Interval to sleep between each call to
`action_cb`.
"""
self.logger.debug('Start network loop retry %s', description)
cur_interval = interval
while self.running:
try:
if not action_cb():
break
except RetryAfter as e:
self.logger.info('%s', e)
cur_interval = 0.5 + e.retry_after
except TimedOut as toe:
self.logger.debug('Timed out %s: %s', description, toe)
# If failure is due to timeout, we should retry asap.
cur_interval = 0
except InvalidToken as pex:
self.logger.error('Invalid token; aborting')
raise pex
except TelegramError as te:
self.logger.error('Error while %s: %s', description, te)
onerr_cb(te)
cur_interval = self._increase_poll_interval(cur_interval)
else:
cur_interval = interval
if cur_interval:
sleep(cur_interval)
@staticmethod
def _increase_poll_interval(current_interval: float) -> float:
# increase waiting times on subsequent errors up to 30secs
if current_interval == 0:
current_interval = 1
elif current_interval < 30:
current_interval += current_interval / 2
elif current_interval > 30:
current_interval = 30
return current_interval
@no_type_check
def _start_webhook(
self,
listen,
port,
url_path,
cert,
key,
bootstrap_retries,
clean,
webhook_url,
allowed_updates,
ready=None,
force_event_loop=False,
):
self.logger.debug('Updater thread started (webhook)')
use_ssl = cert is not None and key is not None
if not url_path.startswith('/'):
url_path = '/{}'.format(url_path)
# Create Tornado app instance
app = WebhookAppClass(url_path, self.bot, self.update_queue)
# Form SSL Context
# An SSLError is raised if the private key does not match with the certificate
if use_ssl:
try:
ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
ssl_ctx.load_cert_chain(cert, key)
except ssl.SSLError:
raise TelegramError('Invalid SSL Certificate')
else:
ssl_ctx = None
# Create and start server
self.httpd = WebhookServer(listen, port, app, ssl_ctx)
if use_ssl:
# DO NOT CHANGE: Only set webhook if SSL is handled by library
if not webhook_url:
webhook_url = self._gen_webhook_url(listen, port, url_path)
self._bootstrap(
max_retries=bootstrap_retries,
clean=clean,
webhook_url=webhook_url,
cert=open(cert, 'rb'),
allowed_updates=allowed_updates,
)
elif clean:
self.logger.warning("cleaning updates is not supported if "
"SSL-termination happens elsewhere; skipping")
self.httpd.serve_forever(force_event_loop=force_event_loop,
ready=ready)
@staticmethod
def _gen_webhook_url(listen: str, port: int, url_path: str) -> str:
return 'https://{listen}:{port}{path}'.format(listen=listen,
port=port,
path=url_path)
@no_type_check
def _bootstrap(self,
max_retries,
clean,
webhook_url,
allowed_updates,
cert=None,
bootstrap_interval=5):
retries = [0]
def bootstrap_del_webhook():
self.bot.delete_webhook()
return False
def bootstrap_clean_updates():
self.logger.debug('Cleaning updates from Telegram server')
updates = self.bot.get_updates()
while updates:
updates = self.bot.get_updates(updates[-1].update_id + 1)
return False
def bootstrap_set_webhook():
self.bot.set_webhook(url=webhook_url,
certificate=cert,
allowed_updates=allowed_updates)
return False
def bootstrap_onerr_cb(exc):
if not isinstance(exc, Unauthorized) and (
max_retries < 0 or retries[0] < max_retries):
retries[0] += 1
self.logger.warning(
'Failed bootstrap phase; try=%s max_retries=%s',
retries[0], max_retries)
else:
self.logger.error(
'Failed bootstrap phase after %s retries (%s)', retries[0],
exc)
raise exc
# Cleaning pending messages is done by polling for them - so we need to delete webhook if
# one is configured.
# We also take this chance to delete pre-configured webhook if this is a polling Updater.
# NOTE: We don't know ahead if a webhook is configured, so we just delete.
if clean or not webhook_url:
self._network_loop_retry(
bootstrap_del_webhook,
bootstrap_onerr_cb,
'bootstrap del webhook',
bootstrap_interval,
)
retries[0] = 0
# Clean pending messages, if requested.
if clean:
self._network_loop_retry(
bootstrap_clean_updates,
bootstrap_onerr_cb,
'bootstrap clean updates',
bootstrap_interval,
)
retries[0] = 0
sleep(1)
# Restore/set webhook settings, if needed. Again, we don't know ahead if a webhook is set,
# so we set it anyhow.
if webhook_url:
self._network_loop_retry(
bootstrap_set_webhook,
bootstrap_onerr_cb,
'bootstrap set webhook',
bootstrap_interval,
)
def stop(self) -> None:
"""Stops the polling/webhook thread, the dispatcher and the job queue."""
self.job_queue.stop()
with self.__lock:
if self.running or self.dispatcher.has_running_threads:
self.logger.debug('Stopping Updater and Dispatcher...')
self.running = False
self._stop_httpd()
self._stop_dispatcher()
self._join_threads()
# Stop the Request instance only if it was created by the Updater
if self._request:
self._request.stop()
@no_type_check
def _stop_httpd(self) -> None:
if self.httpd:
self.logger.debug(
'Waiting for current webhook connection to be '
'closed... Send a Telegram message to the bot to exit '
'immediately.')
self.httpd.shutdown()
self.httpd = None
@no_type_check
def _stop_dispatcher(self) -> None:
self.logger.debug('Requesting Dispatcher to stop...')
self.dispatcher.stop()
@no_type_check
def _join_threads(self) -> None:
for thr in self.__threads:
self.logger.debug('Waiting for {} thread to end'.format(thr.name))
thr.join()
self.logger.debug('{} thread has ended'.format(thr.name))
self.__threads = []
@no_type_check
def signal_handler(self, signum, frame) -> None:
self.is_idle = False
if self.running:
self.logger.info('Received signal {} ({}), stopping...'.format(
signum, get_signal_name(signum)))
if self.persistence:
# Update user_data, chat_data and bot_data before flushing
self.dispatcher.update_persistence()
self.persistence.flush()
self.stop()
if self.user_sig_handler:
self.user_sig_handler(signum, frame)
else:
self.logger.warning('Exiting immediately!')
import os
os._exit(1)
def idle(
self, stop_signals: Union[List, Tuple] = (SIGINT, SIGTERM, SIGABRT)
) -> None:
"""Blocks until one of the signals are received and stops the updater.
Args:
stop_signals (:obj:`list` | :obj:`tuple`): List containing signals from the signal
module that should be subscribed to. Updater.stop() will be called on receiving one
of those signals. Defaults to (``SIGINT``, ``SIGTERM``, ``SIGABRT``).
"""
for sig in stop_signals:
signal(sig, self.signal_handler)
self.is_idle = True
while self.is_idle:
sleep(1)
InputMediaPhoto)
from update_stats import update_pages
import logging, os, db
with open('secret.token', 'r') as f:
TOKEN = f.read().split()[1]
logging.basicConfig(filename='log.log', level=logging.INFO)
updater = Updater(token=TOKEN, use_context=True)
dispatcher = updater.dispatcher
jobQ = JobQueue()
jobQ.set_dispatcher(dispatcher)
jobQ.run_repeating(update_pages, interval=1800, first=1)
jobQ.start()
dbase = db.DB('db.db')
def start(update, context):
num_of_images = len(os.listdir('./pages'))
keyboard = [[
InlineKeyboardButton('⬅', callback_data="p 0"),
InlineKeyboardButton('🔄', callback_data="p 1"),
InlineKeyboardButton('➡', callback_data="p 2")
],
[
InlineKeyboardButton('⏮', callback_data="p 1"),
InlineKeyboardButton('⏭',
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue(MockBot('jobqueue_test'))
self.result = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
self.jq.start()
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
try:
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
finally:
u.stop()
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue(MockBot('jobqueue_test'))
self.jq.start()
self.result = 0
self.job_time = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
def getSeconds(self):
return int(ceil(time.time()))
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def job5(self, bot, job):
self.job_time = self.getSeconds()
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
u.job_queue.start()
try:
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
finally:
u.stop()
def test_time_unit_int(self):
# Testing seconds in int
seconds_interval = 5
expected_time = self.getSeconds() + seconds_interval
self.jq.put(Job(self.job5, seconds_interval, repeat=False))
sleep(6)
self.assertEqual(self.job_time, expected_time)
def test_time_unit_dt_time(self):
# Testing seconds, minutes and hours as datetime.timedelta object
# This is sufficient to test that it actually works.
interval = datetime.timedelta(seconds=5)
expected_time = self.getSeconds() + interval.total_seconds()
self.jq.put(Job(self.job5, interval, repeat=False))
sleep(6)
self.assertEqual(self.job_time, expected_time)
class Updater(Generic[CCT, UD, CD, BD]):
"""
This class, which employs the :class:`telegram.ext.Dispatcher`, provides a frontend to
:class:`telegram.Bot` to the programmer, so they can focus on coding the bot. Its purpose is to
receive the updates from Telegram and to deliver them to said dispatcher. It also runs in a
separate thread, so the user can interact with the bot, for example on the command line. The
dispatcher supports handlers for different kinds of data: Updates from Telegram, basic text
commands and even arbitrary types. The updater can be started as a polling service or, for
production, use a webhook to receive updates. This is achieved using the WebhookServer and
WebhookHandler classes.
Note:
* You must supply either a :attr:`bot` or a :attr:`token` argument.
* If you supply a :attr:`bot`, you will need to pass :attr:`arbitrary_callback_data`,
and :attr:`defaults` to the bot instead of the :class:`telegram.ext.Updater`. In this
case, you'll have to use the class :class:`telegram.ext.ExtBot`.
.. versionchanged:: 13.6
Args:
token (:obj:`str`, optional): The bot's token given by the @BotFather.
base_url (:obj:`str`, optional): Base_url for the bot.
base_file_url (:obj:`str`, optional): Base_file_url for the bot.
workers (:obj:`int`, optional): Amount of threads in the thread pool for functions
decorated with ``@run_async`` (ignored if `dispatcher` argument is used).
bot (:class:`telegram.Bot`, optional): A pre-initialized bot instance (ignored if
`dispatcher` argument is used). If a pre-initialized bot is used, it is the user's
responsibility to create it using a `Request` instance with a large enough connection
pool.
dispatcher (:class:`telegram.ext.Dispatcher`, optional): A pre-initialized dispatcher
instance. If a pre-initialized dispatcher is used, it is the user's responsibility to
create it with proper arguments.
private_key (:obj:`bytes`, optional): Private key for decryption of telegram passport data.
private_key_password (:obj:`bytes`, optional): Password for above private key.
user_sig_handler (:obj:`function`, optional): Takes ``signum, frame`` as positional
arguments. This will be called when a signal is received, defaults are (SIGINT,
SIGTERM, SIGABRT) settable with :attr:`idle`.
request_kwargs (:obj:`dict`, optional): Keyword args to control the creation of a
`telegram.utils.request.Request` object (ignored if `bot` or `dispatcher` argument is
used). The request_kwargs are very useful for the advanced users who would like to
control the default timeouts and/or control the proxy used for http communication.
use_context (:obj:`bool`, optional): If set to :obj:`True` uses the context based callback
API (ignored if `dispatcher` argument is used). Defaults to :obj:`True`.
**New users**: set this to :obj:`True`.
persistence (:class:`telegram.ext.BasePersistence`, optional): The persistence class to
store data that should be persistent over restarts (ignored if `dispatcher` argument is
used).
defaults (:class:`telegram.ext.Defaults`, optional): An object containing default values to
be used if not set explicitly in the bot methods.
arbitrary_callback_data (:obj:`bool` | :obj:`int` | :obj:`None`, optional): Whether to
allow arbitrary objects as callback data for :class:`telegram.InlineKeyboardButton`.
Pass an integer to specify the maximum number of cached objects. For more details,
please see our wiki. Defaults to :obj:`False`.
.. versionadded:: 13.6
context_types (:class:`telegram.ext.ContextTypes`, optional): Pass an instance
of :class:`telegram.ext.ContextTypes` to customize the types used in the
``context`` interface. If not passed, the defaults documented in
:class:`telegram.ext.ContextTypes` will be used.
.. versionadded:: 13.6
Raises:
ValueError: If both :attr:`token` and :attr:`bot` are passed or none of them.
Attributes:
bot (:class:`telegram.Bot`): The bot used with this Updater.
user_sig_handler (:obj:`function`): Optional. Function to be called when a signal is
received.
update_queue (:obj:`Queue`): Queue for the updates.
job_queue (:class:`telegram.ext.JobQueue`): Jobqueue for the updater.
dispatcher (:class:`telegram.ext.Dispatcher`): Dispatcher that handles the updates and
dispatches them to the handlers.
running (:obj:`bool`): Indicates if the updater is running.
persistence (:class:`telegram.ext.BasePersistence`): Optional. The persistence class to
store data that should be persistent over restarts.
use_context (:obj:`bool`): Optional. :obj:`True` if using context based callbacks.
"""
__slots__ = (
'persistence',
'dispatcher',
'user_sig_handler',
'bot',
'logger',
'update_queue',
'job_queue',
'__exception_event',
'last_update_id',
'running',
'_request',
'is_idle',
'httpd',
'__lock',
'__threads',
'__dict__',
)
@overload
def __init__(
self: 'Updater[CallbackContext, dict, dict, dict]',
token: str = None,
base_url: str = None,
workers: int = 4,
bot: Bot = None,
private_key: bytes = None,
private_key_password: bytes = None,
user_sig_handler: Callable = None,
request_kwargs: Dict[str, Any] = None,
persistence: 'BasePersistence' = None, # pylint: disable=E0601
defaults: 'Defaults' = None,
use_context: bool = True,
base_file_url: str = None,
arbitrary_callback_data: Union[DefaultValue, bool, int,
None] = DEFAULT_FALSE,
):
...
@overload
def __init__(
self: 'Updater[CCT, UD, CD, BD]',
token: str = None,
base_url: str = None,
workers: int = 4,
bot: Bot = None,
private_key: bytes = None,
private_key_password: bytes = None,
user_sig_handler: Callable = None,
request_kwargs: Dict[str, Any] = None,
persistence: 'BasePersistence' = None,
defaults: 'Defaults' = None,
use_context: bool = True,
base_file_url: str = None,
arbitrary_callback_data: Union[DefaultValue, bool, int,
None] = DEFAULT_FALSE,
context_types: ContextTypes[CCT, UD, CD, BD] = None,
):
...
@overload
def __init__(
self: 'Updater[CCT, UD, CD, BD]',
user_sig_handler: Callable = None,
dispatcher: Dispatcher[CCT, UD, CD, BD] = None,
):
...
def __init__( # type: ignore[no-untyped-def,misc]
self,
token: str = None,
base_url: str = None,
workers: int = 4,
bot: Bot = None,
private_key: bytes = None,
private_key_password: bytes = None,
user_sig_handler: Callable = None,
request_kwargs: Dict[str, Any] = None,
persistence: 'BasePersistence' = None,
defaults: 'Defaults' = None,
use_context: bool = True,
dispatcher=None,
base_file_url: str = None,
arbitrary_callback_data: Union[DefaultValue, bool, int,
None] = DEFAULT_FALSE,
context_types: ContextTypes[CCT, UD, CD, BD] = None,
):
if defaults and bot:
warnings.warn(
'Passing defaults to an Updater has no effect when a Bot is passed '
'as well. Pass them to the Bot instead.',
TelegramDeprecationWarning,
stacklevel=2,
)
if arbitrary_callback_data is not DEFAULT_FALSE and bot:
warnings.warn(
'Passing arbitrary_callback_data to an Updater has no '
'effect when a Bot is passed as well. Pass them to the Bot instead.',
stacklevel=2,
)
if dispatcher is None:
if (token is None) and (bot is None):
raise ValueError('`token` or `bot` must be passed')
if (token is not None) and (bot is not None):
raise ValueError('`token` and `bot` are mutually exclusive')
if (private_key is not None) and (bot is not None):
raise ValueError(
'`bot` and `private_key` are mutually exclusive')
else:
if bot is not None:
raise ValueError(
'`dispatcher` and `bot` are mutually exclusive')
if persistence is not None:
raise ValueError(
'`dispatcher` and `persistence` are mutually exclusive')
if use_context != dispatcher.use_context:
raise ValueError(
'`dispatcher` and `use_context` are mutually exclusive')
if context_types is not None:
raise ValueError(
'`dispatcher` and `context_types` are mutually exclusive')
if workers is not None:
raise ValueError(
'`dispatcher` and `workers` are mutually exclusive')
self.logger = logging.getLogger(__name__)
self._request = None
if dispatcher is None:
con_pool_size = workers + 4
if bot is not None:
self.bot = bot
if bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size,
)
else:
# we need a connection pool the size of:
# * for each of the workers
# * 1 for Dispatcher
# * 1 for polling Updater (even if webhook is used, we can spare a connection)
# * 1 for JobQueue
# * 1 for main thread
if request_kwargs is None:
request_kwargs = {}
if 'con_pool_size' not in request_kwargs:
request_kwargs['con_pool_size'] = con_pool_size
self._request = Request(**request_kwargs)
self.bot = ExtBot(
token, # type: ignore[arg-type]
base_url,
base_file_url=base_file_url,
request=self._request,
private_key=private_key,
private_key_password=private_key_password,
defaults=defaults,
arbitrary_callback_data=(
False # type: ignore[arg-type]
if arbitrary_callback_data is DEFAULT_FALSE else
arbitrary_callback_data),
)
self.update_queue: Queue = Queue()
self.job_queue = JobQueue()
self.__exception_event = Event()
self.persistence = persistence
self.dispatcher = Dispatcher(
self.bot,
self.update_queue,
job_queue=self.job_queue,
workers=workers,
exception_event=self.__exception_event,
persistence=persistence,
use_context=use_context,
context_types=context_types,
)
self.job_queue.set_dispatcher(self.dispatcher)
else:
con_pool_size = dispatcher.workers + 4
self.bot = dispatcher.bot
if self.bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size,
)
self.update_queue = dispatcher.update_queue
self.__exception_event = dispatcher.exception_event
self.persistence = dispatcher.persistence
self.job_queue = dispatcher.job_queue
self.dispatcher = dispatcher
self.user_sig_handler = user_sig_handler
self.last_update_id = 0
self.running = False
self.is_idle = False
self.httpd = None
self.__lock = Lock()
self.__threads: List[Thread] = []
def __setattr__(self, key: str, value: object) -> None:
if key.startswith('__'):
key = f"_{self.__class__.__name__}{key}"
if issubclass(self.__class__,
Updater) and self.__class__ is not Updater:
object.__setattr__(self, key, value)
return
set_new_attribute_deprecated(self, key, value)
def _init_thread(self, target: Callable, name: str, *args: object,
**kwargs: object) -> None:
thr = Thread(
target=self._thread_wrapper,
name=f"Bot:{self.bot.id}:{name}",
args=(target, ) + args,
kwargs=kwargs,
)
thr.start()
self.__threads.append(thr)
def _thread_wrapper(self, target: Callable, *args: object,
**kwargs: object) -> None:
thr_name = current_thread().name
self.logger.debug('%s - started', thr_name)
try:
target(*args, **kwargs)
except Exception:
self.__exception_event.set()
self.logger.exception('unhandled exception in %s', thr_name)
raise
self.logger.debug('%s - ended', thr_name)
def start_polling(
self,
poll_interval: float = 0.0,
timeout: float = 10,
clean: bool = None,
bootstrap_retries: int = -1,
read_latency: float = 2.0,
allowed_updates: List[str] = None,
drop_pending_updates: bool = None,
) -> Optional[Queue]:
"""Starts polling updates from Telegram.
Args:
poll_interval (:obj:`float`, optional): Time to wait between polling updates from
Telegram in seconds. Default is ``0.0``.
timeout (:obj:`float`, optional): Passed to :meth:`telegram.Bot.get_updates`.
drop_pending_updates (:obj:`bool`, optional): Whether to clean any pending updates on
Telegram servers before actually starting to poll. Default is :obj:`False`.
.. versionadded :: 13.4
clean (:obj:`bool`, optional): Alias for ``drop_pending_updates``.
.. deprecated:: 13.4
Use ``drop_pending_updates`` instead.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
:class:`telegram.ext.Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
allowed_updates (List[:obj:`str`], optional): Passed to
:meth:`telegram.Bot.get_updates`.
read_latency (:obj:`float` | :obj:`int`, optional): Grace time in seconds for receiving
the reply from server. Will be added to the ``timeout`` value and used as the read
timeout from server (Default: ``2``).
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
if (clean is not None) and (drop_pending_updates is not None):
raise TypeError(
'`clean` and `drop_pending_updates` are mutually exclusive.')
if clean is not None:
warnings.warn(
'The argument `clean` of `start_polling` is deprecated. Please use '
'`drop_pending_updates` instead.',
category=TelegramDeprecationWarning,
stacklevel=2,
)
drop_pending_updates = drop_pending_updates if drop_pending_updates is not None else clean
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
dispatcher_ready = Event()
polling_ready = Event()
self._init_thread(self.dispatcher.start,
"dispatcher",
ready=dispatcher_ready)
self._init_thread(
self._start_polling,
"updater",
poll_interval,
timeout,
read_latency,
bootstrap_retries,
drop_pending_updates,
allowed_updates,
ready=polling_ready,
)
self.logger.debug(
'Waiting for Dispatcher and polling to start')
dispatcher_ready.wait()
polling_ready.wait()
# Return the update queue so the main thread can insert updates
return self.update_queue
return None
def start_webhook(
self,
listen: str = '127.0.0.1',
port: int = 80,
url_path: str = '',
cert: str = None,
key: str = None,
clean: bool = None,
bootstrap_retries: int = 0,
webhook_url: str = None,
allowed_updates: List[str] = None,
force_event_loop: bool = None,
drop_pending_updates: bool = None,
ip_address: str = None,
max_connections: int = 40,
) -> Optional[Queue]:
"""
Starts a small http server to listen for updates via webhook. If :attr:`cert`
and :attr:`key` are not provided, the webhook will be started directly on
http://listen:port/url_path, so SSL can be handled by another
application. Else, the webhook will be started on
https://listen:port/url_path. Also calls :meth:`telegram.Bot.set_webhook` as required.
.. versionchanged:: 13.4
:meth:`start_webhook` now *always* calls :meth:`telegram.Bot.set_webhook`, so pass
``webhook_url`` instead of calling ``updater.bot.set_webhook(webhook_url)`` manually.
Args:
listen (:obj:`str`, optional): IP-Address to listen on. Default ``127.0.0.1``.
port (:obj:`int`, optional): Port the bot should be listening on. Default ``80``.
url_path (:obj:`str`, optional): Path inside url.
cert (:obj:`str`, optional): Path to the SSL certificate file.
key (:obj:`str`, optional): Path to the SSL key file.
drop_pending_updates (:obj:`bool`, optional): Whether to clean any pending updates on
Telegram servers before actually starting to poll. Default is :obj:`False`.
.. versionadded :: 13.4
clean (:obj:`bool`, optional): Alias for ``drop_pending_updates``.
.. deprecated:: 13.4
Use ``drop_pending_updates`` instead.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
:class:`telegram.ext.Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely (default)
* 0 - no retries
* > 0 - retry up to X times
webhook_url (:obj:`str`, optional): Explicitly specify the webhook url. Useful behind
NAT, reverse proxy, etc. Default is derived from ``listen``, ``port`` &
``url_path``.
ip_address (:obj:`str`, optional): Passed to :meth:`telegram.Bot.set_webhook`.
.. versionadded :: 13.4
allowed_updates (List[:obj:`str`], optional): Passed to
:meth:`telegram.Bot.set_webhook`.
force_event_loop (:obj:`bool`, optional): Legacy parameter formerly used for a
workaround on Windows + Python 3.8+. No longer has any effect.
.. deprecated:: 13.6
Since version 13.6, ``tornade>=6.1`` is required, which resolves the former
issue.
max_connections (:obj:`int`, optional): Passed to
:meth:`telegram.Bot.set_webhook`.
.. versionadded:: 13.6
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
if (clean is not None) and (drop_pending_updates is not None):
raise TypeError(
'`clean` and `drop_pending_updates` are mutually exclusive.')
if clean is not None:
warnings.warn(
'The argument `clean` of `start_webhook` is deprecated. Please use '
'`drop_pending_updates` instead.',
category=TelegramDeprecationWarning,
stacklevel=2,
)
if force_event_loop is not None:
warnings.warn(
'The argument `force_event_loop` of `start_webhook` is deprecated and no longer '
'has any effect.',
category=TelegramDeprecationWarning,
stacklevel=2,
)
drop_pending_updates = drop_pending_updates if drop_pending_updates is not None else clean
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
webhook_ready = Event()
dispatcher_ready = Event()
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher",
dispatcher_ready)
self._init_thread(
self._start_webhook,
"updater",
listen,
port,
url_path,
cert,
key,
bootstrap_retries,
drop_pending_updates,
webhook_url,
allowed_updates,
ready=webhook_ready,
ip_address=ip_address,
max_connections=max_connections,
)
self.logger.debug(
'Waiting for Dispatcher and Webhook to start')
webhook_ready.wait()
dispatcher_ready.wait()
# Return the update queue so the main thread can insert updates
return self.update_queue
return None
@no_type_check
def _start_polling(
self,
poll_interval,
timeout,
read_latency,
bootstrap_retries,
drop_pending_updates,
allowed_updates,
ready=None,
): # pragma: no cover
# Thread target of thread 'updater'. Runs in background, pulls
# updates from Telegram and inserts them in the update queue of the
# Dispatcher.
self.logger.debug('Updater thread started (polling)')
self._bootstrap(
bootstrap_retries,
drop_pending_updates=drop_pending_updates,
webhook_url='',
allowed_updates=None,
)
self.logger.debug('Bootstrap done')
def polling_action_cb():
updates = self.bot.get_updates(
self.last_update_id,
timeout=timeout,
read_latency=read_latency,
allowed_updates=allowed_updates,
)
if updates:
if not self.running:
self.logger.debug(
'Updates ignored and will be pulled again on restart')
else:
for update in updates:
self.update_queue.put(update)
self.last_update_id = updates[-1].update_id + 1
return True
def polling_onerr_cb(exc):
# Put the error into the update queue and let the Dispatcher
# broadcast it
self.update_queue.put(exc)
if ready is not None:
ready.set()
self._network_loop_retry(polling_action_cb, polling_onerr_cb,
'getting Updates', poll_interval)
@no_type_check
def _network_loop_retry(self, action_cb, onerr_cb, description, interval):
"""Perform a loop calling `action_cb`, retrying after network errors.
Stop condition for loop: `self.running` evaluates :obj:`False` or return value of
`action_cb` evaluates :obj:`False`.
Args:
action_cb (:obj:`callable`): Network oriented callback function to call.
onerr_cb (:obj:`callable`): Callback to call when TelegramError is caught. Receives the
exception object as a parameter.
description (:obj:`str`): Description text to use for logs and exception raised.
interval (:obj:`float` | :obj:`int`): Interval to sleep between each call to
`action_cb`.
"""
self.logger.debug('Start network loop retry %s', description)
cur_interval = interval
while self.running:
try:
if not action_cb():
break
except RetryAfter as exc:
self.logger.info('%s', exc)
cur_interval = 0.5 + exc.retry_after
except TimedOut as toe:
self.logger.debug('Timed out %s: %s', description, toe)
# If failure is due to timeout, we should retry asap.
cur_interval = 0
except InvalidToken as pex:
self.logger.error('Invalid token; aborting')
raise pex
except TelegramError as telegram_exc:
self.logger.error('Error while %s: %s', description,
telegram_exc)
onerr_cb(telegram_exc)
cur_interval = self._increase_poll_interval(cur_interval)
else:
cur_interval = interval
if cur_interval:
sleep(cur_interval)
@staticmethod
def _increase_poll_interval(current_interval: float) -> float:
# increase waiting times on subsequent errors up to 30secs
if current_interval == 0:
current_interval = 1
elif current_interval < 30:
current_interval *= 1.5
else:
current_interval = min(30.0, current_interval)
return current_interval
@no_type_check
def _start_webhook(
self,
listen,
port,
url_path,
cert,
key,
bootstrap_retries,
drop_pending_updates,
webhook_url,
allowed_updates,
ready=None,
ip_address=None,
max_connections: int = 40,
):
self.logger.debug('Updater thread started (webhook)')
# Note that we only use the SSL certificate for the WebhookServer, if the key is also
# present. This is because the WebhookServer may not actually be in charge of performing
# the SSL handshake, e.g. in case a reverse proxy is used
use_ssl = cert is not None and key is not None
if not url_path.startswith('/'):
url_path = f'/{url_path}'
# Create Tornado app instance
app = WebhookAppClass(url_path, self.bot, self.update_queue)
# Form SSL Context
# An SSLError is raised if the private key does not match with the certificate
if use_ssl:
try:
ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
ssl_ctx.load_cert_chain(cert, key)
except ssl.SSLError as exc:
raise TelegramError('Invalid SSL Certificate') from exc
else:
ssl_ctx = None
# Create and start server
self.httpd = WebhookServer(listen, port, app, ssl_ctx)
if not webhook_url:
webhook_url = self._gen_webhook_url(listen, port, url_path)
# We pass along the cert to the webhook if present.
cert_file = open(cert, 'rb') if cert is not None else None
self._bootstrap(
max_retries=bootstrap_retries,
drop_pending_updates=drop_pending_updates,
webhook_url=webhook_url,
allowed_updates=allowed_updates,
cert=cert_file,
ip_address=ip_address,
max_connections=max_connections,
)
if cert_file is not None:
cert_file.close()
self.httpd.serve_forever(ready=ready)
@staticmethod
def _gen_webhook_url(listen: str, port: int, url_path: str) -> str:
return f'https://{listen}:{port}{url_path}'
@no_type_check
def _bootstrap(
self,
max_retries,
drop_pending_updates,
webhook_url,
allowed_updates,
cert=None,
bootstrap_interval=5,
ip_address=None,
max_connections: int = 40,
):
retries = [0]
def bootstrap_del_webhook():
self.logger.debug('Deleting webhook')
if drop_pending_updates:
self.logger.debug(
'Dropping pending updates from Telegram server')
self.bot.delete_webhook(drop_pending_updates=drop_pending_updates)
return False
def bootstrap_set_webhook():
self.logger.debug('Setting webhook')
if drop_pending_updates:
self.logger.debug(
'Dropping pending updates from Telegram server')
self.bot.set_webhook(
url=webhook_url,
certificate=cert,
allowed_updates=allowed_updates,
ip_address=ip_address,
drop_pending_updates=drop_pending_updates,
max_connections=max_connections,
)
return False
def bootstrap_onerr_cb(exc):
if not isinstance(exc, Unauthorized) and (
max_retries < 0 or retries[0] < max_retries):
retries[0] += 1
self.logger.warning(
'Failed bootstrap phase; try=%s max_retries=%s',
retries[0], max_retries)
else:
self.logger.error(
'Failed bootstrap phase after %s retries (%s)', retries[0],
exc)
raise exc
# Dropping pending updates from TG can be efficiently done with the drop_pending_updates
# parameter of delete/start_webhook, even in the case of polling. Also we want to make
# sure that no webhook is configured in case of polling, so we just always call
# delete_webhook for polling
if drop_pending_updates or not webhook_url:
self._network_loop_retry(
bootstrap_del_webhook,
bootstrap_onerr_cb,
'bootstrap del webhook',
bootstrap_interval,
)
retries[0] = 0
# Restore/set webhook settings, if needed. Again, we don't know ahead if a webhook is set,
# so we set it anyhow.
if webhook_url:
self._network_loop_retry(
bootstrap_set_webhook,
bootstrap_onerr_cb,
'bootstrap set webhook',
bootstrap_interval,
)
def stop(self) -> None:
"""Stops the polling/webhook thread, the dispatcher and the job queue."""
self.job_queue.stop()
with self.__lock:
if self.running or self.dispatcher.has_running_threads:
self.logger.debug('Stopping Updater and Dispatcher...')
self.running = False
self._stop_httpd()
self._stop_dispatcher()
self._join_threads()
# Stop the Request instance only if it was created by the Updater
if self._request:
self._request.stop()
@no_type_check
def _stop_httpd(self) -> None:
if self.httpd:
self.logger.debug(
'Waiting for current webhook connection to be '
'closed... Send a Telegram message to the bot to exit '
'immediately.')
self.httpd.shutdown()
self.httpd = None
@no_type_check
def _stop_dispatcher(self) -> None:
self.logger.debug('Requesting Dispatcher to stop...')
self.dispatcher.stop()
@no_type_check
def _join_threads(self) -> None:
for thr in self.__threads:
self.logger.debug('Waiting for %s thread to end', thr.name)
thr.join()
self.logger.debug('%s thread has ended', thr.name)
self.__threads = []
@no_type_check
def _signal_handler(self, signum, frame) -> None:
self.is_idle = False
if self.running:
self.logger.info('Received signal %s (%s), stopping...', signum,
get_signal_name(signum))
if self.persistence:
# Update user_data, chat_data and bot_data before flushing
self.dispatcher.update_persistence()
self.persistence.flush()
self.stop()
if self.user_sig_handler:
self.user_sig_handler(signum, frame)
else:
self.logger.warning('Exiting immediately!')
# pylint: disable=C0415,W0212
import os
os._exit(1)
def idle(
self, stop_signals: Union[List, Tuple] = (SIGINT, SIGTERM, SIGABRT)
) -> None:
"""Blocks until one of the signals are received and stops the updater.
Args:
stop_signals (:obj:`list` | :obj:`tuple`): List containing signals from the signal
module that should be subscribed to. :meth:`Updater.stop()` will be called on
receiving one of those signals. Defaults to (``SIGINT``, ``SIGTERM``, ``SIGABRT``).
"""
for sig in stop_signals:
signal(sig, self._signal_handler)
self.is_idle = True
while self.is_idle:
sleep(1)
def job_queue(bot, _dp):
jq = JobQueue()
jq.set_dispatcher(_dp)
jq.start()
yield jq
jq.stop()
class JobQueueTest(BaseTest, unittest.TestCase):
"""
This object represents Tests for Updater, Dispatcher, WebhookServer and
WebhookHandler
"""
def setUp(self):
self.jq = JobQueue(MockBot('jobqueue_test'))
self.jq.start()
self.result = 0
self.job_time = 0
def tearDown(self):
if self.jq is not None:
self.jq.stop()
def job1(self, bot, job):
self.result += 1
def job2(self, bot, job):
raise Exception("Test Error")
def job3(self, bot, job):
self.result += 1
job.schedule_removal()
def job4(self, bot, job):
self.result += job.context
def job5(self, bot, job):
self.job_time = time.time()
def test_basic(self):
self.jq.put(Job(self.job1, 0.1))
sleep(1.5)
self.assertGreaterEqual(self.result, 10)
def test_job_with_context(self):
self.jq.put(Job(self.job4, 0.1, context=5))
sleep(1.5)
self.assertGreaterEqual(self.result, 50)
def test_noRepeat(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.5)
self.assertEqual(1, self.result)
def test_nextT(self):
self.jq.put(Job(self.job1, 0.1), next_t=0.5)
sleep(0.45)
self.assertEqual(0, self.result)
sleep(0.1)
self.assertEqual(1, self.result)
def test_multiple(self):
self.jq.put(Job(self.job1, 0.1, repeat=False))
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.4))
sleep(1)
self.assertEqual(4, self.result)
def test_disabled(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.enabled = False
j1.enabled = False
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal(self):
j0 = Job(self.job1, 0.1)
j1 = Job(self.job1, 0.2)
self.jq.put(j0)
self.jq.put(Job(self.job1, 0.4))
self.jq.put(j1)
j0.schedule_removal()
j1.schedule_removal()
sleep(1)
self.assertEqual(2, self.result)
def test_schedule_removal_from_within(self):
self.jq.put(Job(self.job1, 0.4))
self.jq.put(Job(self.job3, 0.2))
sleep(1)
self.assertEqual(3, self.result)
def test_longer_first(self):
self.jq.put(Job(self.job1, 0.2, repeat=False))
self.jq.put(Job(self.job1, 0.1, repeat=False))
sleep(0.15)
self.assertEqual(1, self.result)
def test_error(self):
self.jq.put(Job(self.job2, 0.1))
self.jq.put(Job(self.job1, 0.2))
sleep(0.5)
self.assertEqual(2, self.result)
def test_jobs_tuple(self):
self.jq.stop()
jobs = tuple(Job(self.job1, t) for t in range(5, 25))
for job in jobs:
self.jq.put(job)
self.assertTupleEqual(jobs, self.jq.jobs())
def test_inUpdater(self):
u = Updater(bot="MockBot")
u.job_queue.start()
try:
u.job_queue.put(Job(self.job1, 0.5))
sleep(0.75)
self.assertEqual(1, self.result)
u.stop()
sleep(2)
self.assertEqual(1, self.result)
finally:
u.stop()
def test_time_unit_int(self):
# Testing seconds in int
delta = 2
expected_time = time.time() + delta
self.jq.put(Job(self.job5, delta, repeat=False))
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_timedelta(self):
# Testing seconds, minutes and hours as datetime.timedelta object
# This is sufficient to test that it actually works.
interval = datetime.timedelta(seconds=2)
expected_time = time.time() + interval.total_seconds()
self.jq.put(Job(self.job5, interval, repeat=False))
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_datetime(self):
# Testing running at a specific datetime
delta = datetime.timedelta(seconds=2)
next_t = datetime.datetime.now() + delta
expected_time = time.time() + delta.total_seconds()
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_time_today(self):
# Testing running at a specific time today
delta = 2
next_t = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + delta
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_time_unit_dt_time_tomorrow(self):
# Testing running at a specific time that has passed today. Since we can't wait a day, we
# test if the jobs next_t has been calculated correctly
delta = -2
next_t = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + delta + 60 * 60 * 24
self.jq.put(Job(self.job5, repeat=False), next_t=next_t)
self.assertAlmostEqual(self.jq.queue.get(False)[0], expected_time, delta=0.1)
def test_run_once(self):
delta = 2
expected_time = time.time() + delta
self.jq.run_once(self.job5, delta)
sleep(2.5)
self.assertAlmostEqual(self.job_time, expected_time, delta=0.1)
def test_run_repeating(self):
interval = 0.1
first = 1.5
self.jq.run_repeating(self.job1, interval, first=first)
sleep(2.505)
self.assertAlmostEqual(self.result, 10, delta=1)
def test_run_daily(self):
delta = 1
time_of_day = (datetime.datetime.now() + datetime.timedelta(seconds=delta)).time()
expected_time = time.time() + 60 * 60 * 24 + delta
self.jq.run_daily(self.job1, time_of_day)
sleep(2 * delta)
self.assertEqual(self.result, 1)
self.assertAlmostEqual(self.jq.queue.get(False)[0], expected_time, delta=0.1)
'daily': False,
'hourly': True
})
job_queue.run_repeating(
rmr.eventReminder,
interval=60,
first=(datetime.now().replace(second=0, microsecond=0) +
timedelta(minutes=1)),
name='eventNowReminderJob',
context={
'monthly': False,
'weekly': False,
'daily': False,
'hourly': False
})
job_queue.start()
logging.info('Jobs loaded correctly.')
updater.start_polling(poll_interval=1.0,
timeout=20,
read_latency=5,
clean=True)
logging.info('MainBot Completly Loaded.')
logging.info('Bot Working.')
updater.bot.sendMessage(chat_id=bd.chat_id_authorized[1],
text="Bot Iniciado",
disable_notification=True)
updater.idle()
def job_queue(bot):
jq = JobQueue(bot)
jq.start()
yield jq
jq.stop()
class Updater(object):
"""
This class, which employs the Dispatcher class, provides a frontend to
telegram.Bot to the programmer, so they can focus on coding the bot. Its
purpose is to receive the updates from Telegram and to deliver them to said
dispatcher. It also runs in a separate thread, so the user can interact
with the bot, for example on the command line. The dispatcher supports
handlers for different kinds of data: Updates from Telegram, basic text
commands and even arbitrary types.
The updater can be started as a polling service or, for production, use a
webhook to receive updates. This is achieved using the WebhookServer and
WebhookHandler classes.
Attributes:
Args:
token (Optional[str]): The bot's token given by the @BotFather
base_url (Optional[str]):
workers (Optional[int]): Amount of threads in the thread pool for
functions decorated with @run_async
bot (Optional[Bot]): A pre-initialized bot instance. If a pre-initizlied bot is used, it is
the user's responsibility to create it using a `Request` instance with a large enough
connection pool.
request_kwargs (Optional[dict]): Keyword args to control the creation of a request object
(ignored if `bot` argument is used).
Raises:
ValueError: If both `token` and `bot` are passed or none of them.
"""
_request = None
def __init__(self, token=None, base_url=None, workers=4, bot=None, request_kwargs=None):
if (token is None) and (bot is None):
raise ValueError('`token` or `bot` must be passed')
if (token is not None) and (bot is not None):
raise ValueError('`token` and `bot` are mutually exclusive')
if bot is not None:
self.bot = bot
else:
# we need a connection pool the size of:
# * for each of the workers
# * 1 for Dispatcher
# * 1 for polling Updater (even if webhook is used, we can spare a connection)
# * 1 for JobQueue
# * 1 for main thread
if request_kwargs is None:
request_kwargs = {}
if 'con_pool_size' not in request_kwargs:
request_kwargs['con_pool_size'] = workers + 4
self._request = Request(**request_kwargs)
self.bot = Bot(token, base_url, request=self._request)
self.update_queue = Queue()
self.job_queue = JobQueue(self.bot)
self.__exception_event = Event()
self.dispatcher = Dispatcher(
self.bot,
self.update_queue,
job_queue=self.job_queue,
workers=workers,
exception_event=self.__exception_event)
self.last_update_id = 0
self.logger = logging.getLogger(__name__)
self.running = False
self.is_idle = False
self.httpd = None
self.__lock = Lock()
self.__threads = []
""":type: list[Thread]"""
def _init_thread(self, target, name, *args, **kwargs):
thr = Thread(target=self._thread_wrapper, name=name, args=(target,) + args, kwargs=kwargs)
thr.start()
self.__threads.append(thr)
def _thread_wrapper(self, target, *args, **kwargs):
thr_name = current_thread().name
self.logger.debug('{0} - started'.format(thr_name))
try:
target(*args, **kwargs)
except Exception:
self.__exception_event.set()
self.logger.exception('unhandled exception')
raise
self.logger.debug('{0} - ended'.format(thr_name))
def start_polling(self,
poll_interval=0.0,
timeout=10,
network_delay=None,
clean=False,
bootstrap_retries=0,
read_latency=2.,
allowed_updates=None):
"""
Starts polling updates from Telegram.
Args:
poll_interval (Optional[float]): Time to wait between polling updates from Telegram in
seconds. Default is 0.0
timeout (Optional[float]): Passed to Bot.getUpdates
network_delay: Deprecated. Will be honoured as `read_latency` for a while but will be
removed in the future.
clean (Optional[bool]): Whether to clean any pending updates on Telegram servers before
actually starting to poll. Default is False.
bootstrap_retries (Optional[int]): Whether the bootstrapping phase of the `Updater`
will retry on failures on the Telegram server.
| < 0 - retry indefinitely
| 0 - no retries (default)
| > 0 - retry up to X times
allowed_updates (Optional[list[str]]): Passed to Bot.getUpdates
read_latency (Optional[float|int]): Grace time in seconds for receiving the reply from
server. Will be added to the `timeout` value and used as the read timeout from
server (Default: 2).
Returns:
Queue: The update queue that can be filled from the main thread
"""
if network_delay is not None:
warnings.warn('network_delay is deprecated, use read_latency instead')
read_latency = network_delay
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher")
self._init_thread(self._start_polling, "updater", poll_interval, timeout,
read_latency, bootstrap_retries, clean, allowed_updates)
# Return the update queue so the main thread can insert updates
return self.update_queue
def start_webhook(self,
listen='127.0.0.1',
port=80,
url_path='',
cert=None,
key=None,
clean=False,
bootstrap_retries=0,
webhook_url=None):
"""
Starts a small http server to listen for updates via webhook. If cert
and key are not provided, the webhook will be started directly on
http://listen:port/url_path, so SSL can be handled by another
application. Else, the webhook will be started on
https://listen:port/url_path
Args:
listen (Optional[str]): IP-Address to listen on
port (Optional[int]): Port the bot should be listening on
url_path (Optional[str]): Path inside url
cert (Optional[str]): Path to the SSL certificate file
key (Optional[str]): Path to the SSL key file
clean (Optional[bool]): Whether to clean any pending updates on
Telegram servers before actually starting the webhook. Default
is False.
bootstrap_retries (Optional[int[): Whether the bootstrapping phase
of the `Updater` will retry on failures on the Telegram server.
| < 0 - retry indefinitely
| 0 - no retries (default)
| > 0 - retry up to X times
webhook_url (Optional[str]): Explicitly specifiy the webhook url.
Useful behind NAT, reverse proxy, etc. Default is derived from
`listen`, `port` & `url_path`.
Returns:
Queue: The update queue that can be filled from the main thread
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher"),
self._init_thread(self._start_webhook, "updater", listen, port, url_path, cert,
key, bootstrap_retries, clean, webhook_url)
# Return the update queue so the main thread can insert updates
return self.update_queue
def _start_polling(self, poll_interval, timeout, read_latency, bootstrap_retries, clean,
allowed_updates):
"""
Thread target of thread 'updater'. Runs in background, pulls
updates from Telegram and inserts them in the update queue of the
Dispatcher.
"""
cur_interval = poll_interval
self.logger.debug('Updater thread started')
self._bootstrap(bootstrap_retries, clean=clean, webhook_url='')
while self.running:
try:
updates = self.bot.getUpdates(
self.last_update_id,
timeout=timeout,
read_latency=read_latency,
allowed_updates=allowed_updates)
except RetryAfter as e:
self.logger.info(str(e))
cur_interval = 0.5 + e.retry_after
except TelegramError as te:
self.logger.error("Error while getting Updates: {0}".format(te))
# Put the error into the update queue and let the Dispatcher
# broadcast it
self.update_queue.put(te)
cur_interval = self._increase_poll_interval(cur_interval)
else:
if not self.running:
if len(updates) > 0:
self.logger.debug('Updates ignored and will be pulled '
'again on restart.')
break
if updates:
for update in updates:
self.update_queue.put(update)
self.last_update_id = updates[-1].update_id + 1
cur_interval = poll_interval
sleep(cur_interval)
@staticmethod
def _increase_poll_interval(current_interval):
# increase waiting times on subsequent errors up to 30secs
if current_interval == 0:
current_interval = 1
elif current_interval < 30:
current_interval += current_interval / 2
elif current_interval > 30:
current_interval = 30
return current_interval
def _start_webhook(self, listen, port, url_path, cert, key, bootstrap_retries, clean,
webhook_url):
self.logger.debug('Updater thread started')
use_ssl = cert is not None and key is not None
if not url_path.startswith('/'):
url_path = '/{0}'.format(url_path)
# Create and start server
self.httpd = WebhookServer((listen, port), WebhookHandler, self.update_queue, url_path,
self.bot)
if use_ssl:
self._check_ssl_cert(cert, key)
# DO NOT CHANGE: Only set webhook if SSL is handled by library
if not webhook_url:
webhook_url = self._gen_webhook_url(listen, port, url_path)
self._bootstrap(
max_retries=bootstrap_retries,
clean=clean,
webhook_url=webhook_url,
cert=open(cert, 'rb'))
elif clean:
self.logger.warning("cleaning updates is not supported if "
"SSL-termination happens elsewhere; skipping")
self.httpd.serve_forever(poll_interval=1)
def _check_ssl_cert(self, cert, key):
# Check SSL-Certificate with openssl, if possible
try:
exit_code = subprocess.call(
["openssl", "x509", "-text", "-noout", "-in", cert],
stdout=open(os.devnull, 'wb'),
stderr=subprocess.STDOUT)
except OSError:
exit_code = 0
if exit_code is 0:
try:
self.httpd.socket = ssl.wrap_socket(
self.httpd.socket, certfile=cert, keyfile=key, server_side=True)
except ssl.SSLError as error:
self.logger.exception('Failed to init SSL socket')
raise TelegramError(str(error))
else:
raise TelegramError('SSL Certificate invalid')
@staticmethod
def _gen_webhook_url(listen, port, url_path):
return 'https://{listen}:{port}{path}'.format(listen=listen, port=port, path=url_path)
def _bootstrap(self, max_retries, clean, webhook_url, cert=None):
retries = 0
while 1:
try:
if clean:
# Disable webhook for cleaning
self.bot.deleteWebhook()
self._clean_updates()
sleep(1)
self.bot.setWebhook(url=webhook_url, certificate=cert)
except (Unauthorized, InvalidToken):
raise
except TelegramError:
msg = 'error in bootstrap phase; try={0} max_retries={1}'.format(retries,
max_retries)
if max_retries < 0 or retries < max_retries:
self.logger.warning(msg)
retries += 1
else:
self.logger.exception(msg)
raise
else:
break
sleep(1)
def _clean_updates(self):
self.logger.debug('Cleaning updates from Telegram server')
updates = self.bot.getUpdates()
while updates:
updates = self.bot.getUpdates(updates[-1].update_id + 1)
def stop(self):
"""
Stops the polling/webhook thread, the dispatcher and the job queue
"""
self.job_queue.stop()
with self.__lock:
if self.running or self.dispatcher.has_running_threads:
self.logger.debug('Stopping Updater and Dispatcher...')
self.running = False
self._stop_httpd()
self._stop_dispatcher()
self._join_threads()
# Stop the Request instance only if it was created by the Updater
if self._request:
self._request.stop()
def _stop_httpd(self):
if self.httpd:
self.logger.debug('Waiting for current webhook connection to be '
'closed... Send a Telegram message to the bot to exit '
'immediately.')
self.httpd.shutdown()
self.httpd = None
def _stop_dispatcher(self):
self.logger.debug('Requesting Dispatcher to stop...')
self.dispatcher.stop()
def _join_threads(self):
for thr in self.__threads:
self.logger.debug('Waiting for {0} thread to end'.format(thr.name))
thr.join()
self.logger.debug('{0} thread has ended'.format(thr.name))
self.__threads = []
def signal_handler(self, signum, frame):
self.is_idle = False
if self.running:
self.stop()
else:
self.logger.warning('Exiting immediately!')
import os
os._exit(1)
def idle(self, stop_signals=(SIGINT, SIGTERM, SIGABRT)):
"""
Blocks until one of the signals are received and stops the updater
Args:
stop_signals: Iterable containing signals from the signal module
that should be subscribed to. Updater.stop() will be called on
receiving one of those signals. Defaults to (SIGINT, SIGTERM,
SIGABRT)
"""
for sig in stop_signals:
signal(sig, self.signal_handler)
self.is_idle = True
while self.is_idle:
sleep(1)
class Updater(object):
"""
This class, which employs the :class:`telegram.ext.Dispatcher`, provides a frontend to
:class:`telegram.Bot` to the programmer, so they can focus on coding the bot. Its purpose is to
receive the updates from Telegram and to deliver them to said dispatcher. It also runs in a
separate thread, so the user can interact with the bot, for example on the command line. The
dispatcher supports handlers for different kinds of data: Updates from Telegram, basic text
commands and even arbitrary types. The updater can be started as a polling service or, for
production, use a webhook to receive updates. This is achieved using the WebhookServer and
WebhookHandler classes.
Attributes:
bot (:class:`telegram.Bot`): The bot used with this Updater.
user_sig_handler (:obj:`signal`): signals the updater will respond to.
update_queue (:obj:`Queue`): Queue for the updates.
job_queue (:class:`telegram.ext.JobQueue`): Jobqueue for the updater.
dispatcher (:class:`telegram.ext.Dispatcher`): Dispatcher that handles the updates and
dispatches them to the handlers.
running (:obj:`bool`): Indicates if the updater is running.
Args:
token (:obj:`str`, optional): The bot's token given by the @BotFather.
base_url (:obj:`str`, optional): Base_url for the bot.
workers (:obj:`int`, optional): Amount of threads in the thread pool for functions
decorated with ``@run_async``.
bot (:class:`telegram.Bot`, optional): A pre-initialized bot instance. If a pre-initialized
bot is used, it is the user's responsibility to create it using a `Request`
instance with a large enough connection pool.
user_sig_handler (:obj:`function`, optional): Takes ``signum, frame`` as positional
arguments. This will be called when a signal is received, defaults are (SIGINT,
SIGTERM, SIGABRT) setable with :attr:`idle`.
request_kwargs (:obj:`dict`, optional): Keyword args to control the creation of a request
object (ignored if `bot` argument is used).
Note:
You must supply either a :attr:`bot` or a :attr:`token` argument.
Raises:
ValueError: If both :attr:`token` and :attr:`bot` are passed or none of them.
"""
_request = None
def __init__(self,
token=None,
base_url=None,
workers=4,
bot=None,
user_sig_handler=None,
request_kwargs=None):
if (token is None) and (bot is None):
raise ValueError('`token` or `bot` must be passed')
if (token is not None) and (bot is not None):
raise ValueError('`token` and `bot` are mutually exclusive')
self.logger = logging.getLogger(__name__)
con_pool_size = workers + 4
if bot is not None:
self.bot = bot
if bot.request.con_pool_size < con_pool_size:
self.logger.warning(
'Connection pool of Request object is smaller than optimal value (%s)',
con_pool_size)
else:
# we need a connection pool the size of:
# * for each of the workers
# * 1 for Dispatcher
# * 1 for polling Updater (even if webhook is used, we can spare a connection)
# * 1 for JobQueue
# * 1 for main thread
if request_kwargs is None:
request_kwargs = {}
if 'con_pool_size' not in request_kwargs:
request_kwargs['con_pool_size'] = con_pool_size
self._request = Request(**request_kwargs)
self.bot = Bot(token, base_url, request=self._request)
self.user_sig_handler = user_sig_handler
self.update_queue = Queue()
self.job_queue = JobQueue(self.bot)
self.__exception_event = Event()
self.dispatcher = Dispatcher(
self.bot,
self.update_queue,
job_queue=self.job_queue,
workers=workers,
exception_event=self.__exception_event)
self.last_update_id = 0
self.running = False
self.is_idle = False
self.httpd = None
self.__lock = Lock()
self.__threads = []
def _init_thread(self, target, name, *args, **kwargs):
thr = Thread(target=self._thread_wrapper, name=name, args=(target,) + args, kwargs=kwargs)
thr.start()
self.__threads.append(thr)
def _thread_wrapper(self, target, *args, **kwargs):
thr_name = current_thread().name
self.logger.debug('{0} - started'.format(thr_name))
try:
target(*args, **kwargs)
except Exception:
self.__exception_event.set()
self.logger.exception('unhandled exception')
raise
self.logger.debug('{0} - ended'.format(thr_name))
def start_polling(self,
poll_interval=0.0,
timeout=10,
network_delay=None,
clean=False,
bootstrap_retries=0,
read_latency=2.,
allowed_updates=None):
"""Starts polling updates from Telegram.
Args:
poll_interval (:obj:`float`, optional): Time to wait between polling updates from
Telegram in seconds. Default is 0.0.
timeout (:obj:`float`, optional): Passed to :attr:`telegram.Bot.get_updates`.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting to poll. Default is False.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely
* 0 - no retries (default)
* > 0 - retry up to X times
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.get_updates`.
read_latency (:obj:`float` | :obj:`int`, optional): Grace time in seconds for receiving
the reply from server. Will be added to the `timeout` value and used as the read
timeout from server (Default: 2).
network_delay: Deprecated. Will be honoured as :attr:`read_latency` for a while but
will be removed in the future.
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
if network_delay is not None:
warnings.warn('network_delay is deprecated, use read_latency instead')
read_latency = network_delay
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher")
self._init_thread(self._start_polling, "updater", poll_interval, timeout,
read_latency, bootstrap_retries, clean, allowed_updates)
# Return the update queue so the main thread can insert updates
return self.update_queue
def start_webhook(self,
listen='127.0.0.1',
port=80,
url_path='',
cert=None,
key=None,
clean=False,
bootstrap_retries=0,
webhook_url=None,
allowed_updates=None):
"""
Starts a small http server to listen for updates via webhook. If cert
and key are not provided, the webhook will be started directly on
http://listen:port/url_path, so SSL can be handled by another
application. Else, the webhook will be started on
https://listen:port/url_path
Args:
listen (:obj:`str`, optional): IP-Address to listen on. Default ``127.0.0.1``.
port (:obj:`int`, optional): Port the bot should be listening on. Default ``80``.
url_path (:obj:`str`, optional): Path inside url.
cert (:obj:`str`, optional): Path to the SSL certificate file.
key (:obj:`str`, optional): Path to the SSL key file.
clean (:obj:`bool`, optional): Whether to clean any pending updates on Telegram servers
before actually starting the webhook. Default is ``False``.
bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
`Updater` will retry on failures on the Telegram server.
* < 0 - retry indefinitely
* 0 - no retries (default)
* > 0 - retry up to X times
webhook_url (:obj:`str`, optional): Explicitly specify the webhook url. Useful behind
NAT, reverse proxy, etc. Default is derived from `listen`, `port` & `url_path`.
allowed_updates (List[:obj:`str`], optional): Passed to
:attr:`telegram.Bot.set_webhook`.
Returns:
:obj:`Queue`: The update queue that can be filled from the main thread.
"""
with self.__lock:
if not self.running:
self.running = True
# Create & start threads
self.job_queue.start()
self._init_thread(self.dispatcher.start, "dispatcher"),
self._init_thread(self._start_webhook, "updater", listen, port, url_path, cert,
key, bootstrap_retries, clean, webhook_url, allowed_updates)
# Return the update queue so the main thread can insert updates
return self.update_queue
def _start_polling(self, poll_interval, timeout, read_latency, bootstrap_retries, clean,
allowed_updates):
# """
# Thread target of thread 'updater'. Runs in background, pulls
# updates from Telegram and inserts them in the update queue of the
# Dispatcher.
# """
cur_interval = poll_interval
self.logger.debug('Updater thread started')
self._bootstrap(bootstrap_retries, clean=clean, webhook_url='', allowed_updates=None)
while self.running:
try:
updates = self.bot.get_updates(
self.last_update_id,
timeout=timeout,
read_latency=read_latency,
allowed_updates=allowed_updates)
except RetryAfter as e:
self.logger.info(str(e))
cur_interval = 0.5 + e.retry_after
except TelegramError as te:
self.logger.error("Error while getting Updates: {0}".format(te))
# Put the error into the update queue and let the Dispatcher
# broadcast it
self.update_queue.put(te)
cur_interval = self._increase_poll_interval(cur_interval)
else:
if not self.running:
if len(updates) > 0:
self.logger.debug('Updates ignored and will be pulled '
'again on restart.')
break
if updates:
for update in updates:
self.update_queue.put(update)
self.last_update_id = updates[-1].update_id + 1
cur_interval = poll_interval
sleep(cur_interval)
@staticmethod
def _increase_poll_interval(current_interval):
# increase waiting times on subsequent errors up to 30secs
if current_interval == 0:
current_interval = 1
elif current_interval < 30:
current_interval += current_interval / 2
elif current_interval > 30:
current_interval = 30
return current_interval
def _start_webhook(self, listen, port, url_path, cert, key, bootstrap_retries, clean,
webhook_url, allowed_updates):
self.logger.debug('Updater thread started')
use_ssl = cert is not None and key is not None
if not url_path.startswith('/'):
url_path = '/{0}'.format(url_path)
# Create and start server
self.httpd = WebhookServer((listen, port), WebhookHandler, self.update_queue, url_path,
self.bot)
if use_ssl:
self._check_ssl_cert(cert, key)
# DO NOT CHANGE: Only set webhook if SSL is handled by library
if not webhook_url:
webhook_url = self._gen_webhook_url(listen, port, url_path)
self._bootstrap(
max_retries=bootstrap_retries,
clean=clean,
webhook_url=webhook_url,
cert=open(cert, 'rb'),
allowed_updates=allowed_updates)
elif clean:
self.logger.warning("cleaning updates is not supported if "
"SSL-termination happens elsewhere; skipping")
self.httpd.serve_forever(poll_interval=1)
def _check_ssl_cert(self, cert, key):
# Check SSL-Certificate with openssl, if possible
try:
exit_code = subprocess.call(
["openssl", "x509", "-text", "-noout", "-in", cert],
stdout=open(os.devnull, 'wb'),
stderr=subprocess.STDOUT)
except OSError:
exit_code = 0
if exit_code is 0:
try:
self.httpd.socket = ssl.wrap_socket(
self.httpd.socket, certfile=cert, keyfile=key, server_side=True)
except ssl.SSLError as error:
self.logger.exception('Failed to init SSL socket')
raise TelegramError(str(error))
else:
raise TelegramError('SSL Certificate invalid')
@staticmethod
def _gen_webhook_url(listen, port, url_path):
return 'https://{listen}:{port}{path}'.format(listen=listen, port=port, path=url_path)
def _bootstrap(self, max_retries, clean, webhook_url, allowed_updates, cert=None):
retries = 0
while 1:
try:
if clean:
# Disable webhook for cleaning
self.bot.delete_webhook()
self._clean_updates()
sleep(1)
self.bot.set_webhook(
url=webhook_url, certificate=cert, allowed_updates=allowed_updates)
except (Unauthorized, InvalidToken):
raise
except TelegramError:
msg = 'error in bootstrap phase; try={0} max_retries={1}'.format(retries,
max_retries)
if max_retries < 0 or retries < max_retries:
self.logger.warning(msg)
retries += 1
else:
self.logger.exception(msg)
raise
else:
break
sleep(1)
def _clean_updates(self):
self.logger.debug('Cleaning updates from Telegram server')
updates = self.bot.get_updates()
while updates:
updates = self.bot.get_updates(updates[-1].update_id + 1)
def stop(self):
"""Stops the polling/webhook thread, the dispatcher and the job queue."""
self.job_queue.stop()
with self.__lock:
if self.running or self.dispatcher.has_running_threads:
self.logger.debug('Stopping Updater and Dispatcher...')
self.running = False
self._stop_httpd()
self._stop_dispatcher()
self._join_threads()
# Stop the Request instance only if it was created by the Updater
if self._request:
self._request.stop()
def _stop_httpd(self):
if self.httpd:
self.logger.debug('Waiting for current webhook connection to be '
'closed... Send a Telegram message to the bot to exit '
'immediately.')
self.httpd.shutdown()
self.httpd = None
def _stop_dispatcher(self):
self.logger.debug('Requesting Dispatcher to stop...')
self.dispatcher.stop()
def _join_threads(self):
for thr in self.__threads:
self.logger.debug('Waiting for {0} thread to end'.format(thr.name))
thr.join()
self.logger.debug('{0} thread has ended'.format(thr.name))
self.__threads = []
def signal_handler(self, signum, frame):
self.is_idle = False
if self.running:
self.stop()
if self.user_sig_handler:
self.user_sig_handler(signum, frame)
else:
self.logger.warning('Exiting immediately!')
import os
os._exit(1)
def idle(self, stop_signals=(SIGINT, SIGTERM, SIGABRT)):
"""Blocks until one of the signals are received and stops the updater.
Args:
stop_signals (:obj:`iterable`): Iterable containing signals from the signal module that
should be subscribed to. Updater.stop() will be called on receiving one of those
signals. Defaults to (``SIGINT``, ``SIGTERM``, ``SIGABRT``).
"""
for sig in stop_signals:
signal(sig, self.signal_handler)
self.is_idle = True
while self.is_idle:
sleep(1)
class Bot(object):
START_MESSAGE = "Hello, I am a bot, nice to meet you. You may use /help to read what my commands do."
ADD_USAGE = "/add <url> <m> <keyword 1> <keyword 2> ..."
LIST_USAGE = "/list"
REMOVE_USAGE = "/remove <url>"
# Help message.
HELP_MESSAGE = f"""*KeywordScrapeBot*:\n
{ADD_USAGE}
Add a job that runs every m minutes (minimum 15), scanning the url for links containing the keywords.
Running the command again for the same url will overwrite the job.\n
{LIST_USAGE}
List your running jobs.\n
{REMOVE_USAGE}
Remove a job.
"""
def __init__(self,
bot_token: str,
database_file: Union[str, Path],
minimum_interval: int = 15):
"""
:param bot_token: The token to run the bot on.
:param database_file: The database file.
"""
self._database_file = database_file
self._minimum_interval = minimum_interval
self._updater = Updater(token=bot_token, use_context=True)
self._updater.dispatcher.add_handler(
CommandHandler("start", self._add_user))
self._updater.dispatcher.add_handler(
CommandHandler("list", self._list_jobs))
self._updater.dispatcher.add_handler(
CommandHandler("add", self._add_job))
self._updater.dispatcher.add_handler(
CommandHandler("remove", self._remove_job))
self._updater.dispatcher.add_handler(
CommandHandler("help", self._send_help))
self._job_queue = JobQueue()
self._job_queue.set_dispatcher(self._updater.dispatcher)
self._job_queue.start()
# Keep map {(user, url) : telegram.ext.Job} to allow canceling jobs.
self._job_map = dict()
# Load all Jobs in the database.
for job in Database(self._database_file).get_jobs():
self._schedule(job)
def start(self):
self._updater.start_polling()
def idle(self):
self._updater.idle()
def _add_user(self, update: telegram.Update,
context: telegram.ext.CallbackContext):
"""
Callback for the addition of a user.
"""
user = update.effective_chat.id
# Add user to database.
Database(self._database_file).add_user(user)
# Answer user.
context.bot.send_message(chat_id=user, text=self.START_MESSAGE)
# Log the info about the new user.
logging.info(f"/start command received by user: {user}.")
def _add_job(self, update: telegram.Update,
context: telegram.ext.CallbackContext):
f"""
Callback for the update of a job. Message must be:
```
{Bot.ADD_USAGE}
```
"""
user = update.effective_chat.id
try:
# Extract info.
url = context.args[0]
# Check url validity.
if not utils.is_valid_url(url):
update.message.reply_text(f"{url} is not a valid url.",
disable_web_page_preview=True)
logging.warning(f"Invalid url from user {user}.")
return
# Check minimum time
freq = int(context.args[1])
if freq < self._minimum_interval:
update.message.reply_text(
f"{self._minimum_interval} minutes is the minimum time. I'll just set it for you."
)
freq = self._minimum_interval
keywords = context.args[2::] if len(context.args) > 2 else list()
# Update database.
job = Job(user, url, freq, keywords)
Database(self._database_file).add_job(job)
# Schedule job.
self._schedule(job)
# Send back a response as a confirmation.
response = f"Will start searching {url} for links containing {', '.join(keywords)} every {freq} minutes."
update.message.reply_text(response, disable_web_page_preview=True)
logging.info(f"/add command received by user: {user}. {response}")
except (IndexError, ValueError):
update.message.reply_text(f"Usage: {Bot.ADD_USAGE}")
logging.warning(f"Inappropriate /add command from user {user}.")
def _list_jobs(self, update: telegram.Update,
context: telegram.ext.CallbackContext):
"""
Send a message containing the scheduled jobs for the user.
"""
user = update.effective_chat.id
jobs = Database(self._database_file).get_jobs(user)
if jobs:
update.message.reply_markdown("\n---\n".join([
f"*JOB {i + 1}*\nurl: {j.url}\nkeywords: {j.keywords}\nEvery {j.freq} hours."
for i, j in enumerate(jobs)
]),
disable_web_page_preview=True)
else:
update.message.reply_text(f"No jobs scheduled.")
logging.info(f"Sent job list to {user}.")
def _remove_job(self, update: telegram.Update,
context: telegram.ext.CallbackContext):
f"""
Callback for the removal of a job. Message must be:
```
{Bot.REMOVE_USAGE}
```
"""
user = update.effective_chat.id
try:
url = context.args[0]
db = Database(self._database_file)
jobs = db.get_jobs(user)
# Job not in database.
if url not in [j.url for j in jobs]:
update.message.reply_text(f"You have no job for url: {url}",
disable_web_page_preview=True)
logging.info(
f"User {user} asked for removal of non-existing job {url}")
return
# Job in db, delete and unschedule job.
db.delete_job(user, url)
self._unschedule(user, url)
# Send back a response.
update.message.reply_text(
f"You will receive no more updates from: {url}",
disable_web_page_preview=True)
logging.info(f"Removed job {url} for user {user}.")
except IndexError:
update.message.reply_text(f"Usage: {Bot.REMOVE_USAGE}")
logging.warning(f"Inappropriate /remove command from user {user}.")
def _send_help(self, update: telegram.Update,
context: telegram.ext.CallbackContext):
"""
Send help message.
"""
user = update.effective_chat.id
# Answer user.
context.bot.send_message(chat_id=user,
text=self.HELP_MESSAGE,
parse_mode="markdown")
logging.info(f"Sent help to user: {user}.")
def _schedule(self, job: Job):
"""
Schedule a new job for the bot. Tries to remove any previous job for the same key (user, url)
:param job: The new job to schedule.
"""
# Safely remove any old matching job.
self._unschedule(job.user, job.url)
# Set job to run every x hours and keep track to cancel it later.
self._job_map[(job.user, job.url)] = self._job_queue.run_repeating(
make_job_callback(job, self._database_file), 60 * job.freq, 1)
logging.info(f"Started job on url {job.url} for user {job.user}.")
def _unschedule(self, user: int, url: str):
"""
Remove the corresponding job from the queue.
:param user: The user of the job.
:param url: The url of the job.
"""
old_job = self._job_map.pop((user, url), 0)
if old_job != 0:
old_job.schedule_removal()
logging.info(f"Removed Telegram job on url {url} for user {user}.")
def __del__(self):
# Stop za bot.
self._job_queue.stop()
self._updater.stop()
