示例#1
0
  def post(self):
    logging.debug('Params: %s', self.request.params)

    key = self.request.params['source_key']
    source = ndb.Key(urlsafe=key).get()
    if not source or source.status == 'disabled' or 'listen' not in source.features:
      logging.error('Source not found or disabled. Dropping task.')
      return
    logging.info('Source: %s %s, %s', source.label(), source.key.string_id(),
                 source.bridgy_url(self))

    last_polled = self.request.params['last_polled']
    if last_polled != source.last_polled.strftime(util.POLL_TASK_DATETIME_FORMAT):
      logging.warning('duplicate poll task! deferring to the other task.')
      return

    now = now_fn()
    source.last_poll_attempt = now
    # randomize task ETA to within +/- 20% to try to spread out tasks and
    # prevent thundering herds.
    task_countdown = source.poll_period().total_seconds() * random.uniform(.8, 1.2)
    try:
      self.do_post(source)
      util.add_poll_task(source, countdown=task_countdown)
    except models.DisableSource:
      # the user deauthorized the bridgy app, so disable this source.
      # let the task complete successfully so that it's not retried.
      source.status = 'disabled'
      logging.warning('Disabling source!')
    except:
      source.status = 'error'
      raise
    finally:
      gc.collect()  # might help avoid hitting the instance memory limit
      source.put()
示例#2
0
  def create_new(cls, user_url=None, **kwargs):
    """Creates and saves a new :class:`Source` and adds a poll task for it.

    Args:
      user_url: a string, optional. if provided, supersedes other urls when
        determining the author_url
      **kwargs: passed to :meth:`new()`

    Returns: newly created :class:`Source`
    """
    source = cls.new(**kwargs)
    if source is None:
      return None

    if not source.domain_urls:  # defer to the source if it already set this
      auth_entity = kwargs.get('auth_entity')
      if auth_entity and hasattr(auth_entity, 'user_json'):
        source.domain_urls, source.domains = source.urls_and_domains(
          auth_entity, user_url)
    logger.debug(f'URLs/domains: {source.domain_urls} {source.domains}')

    # check if this source already exists
    existing = source.key.get()
    if existing:
      # merge some fields
      source.features = set(source.features + existing.features)
      source.populate(**existing.to_dict(include=(
            'created', 'last_hfeed_refetch', 'last_poll_attempt', 'last_polled',
            'last_syndication_url', 'last_webmention_sent', 'superfeedr_secret',
            'webmention_endpoint')))
      verb = 'Updated'
    else:
      verb = 'Added'

    author_urls = source.get_author_urls()
    link = ('http://indiewebify.me/send-webmentions/?url=' + author_urls[0]
            if author_urls else 'http://indiewebify.me/#send-webmentions')
    feature = source.features[0] if source.features else 'listen'
    blurb = '%s %s. %s' % (
      verb, source.label(),
      'Try previewing a post from your web site!' if feature == 'publish'
      else '<a href="%s">Try a webmention!</a>' % link if feature == 'webmention'
      else "Refresh in a minute to see what we've found!")
    logger.info(f'{blurb} {source.bridgy_url()}')

    source.verify()
    if source.verified():
      flash(blurb)

    source.put()

    if 'webmention' in source.features:
      superfeedr.subscribe(source)

    if 'listen' in source.features and source.AUTO_POLL:
      util.add_poll_task(source, now=True)
      util.add_poll_task(source)

    return source
示例#3
0
  def post(self):
    source = ndb.Key(urlsafe=util.get_required_param(self, 'key')).get()
    if not source:
      self.abort(400, 'source not found')

    util.add_poll_task(source, now=True)
    self.messages.add("Polling now. Refresh in a minute to see what's new!")
    self.redirect(source.bridgy_url(self))
示例#4
0
  def post(self, *path_args):
    self.request.headers['Content-Type'] = 'application/x-www-form-urlencoded'
    logging.debug('Params: %s', list(self.request.params.items()))

    key = self.request.params['source_key']
    source = self.source = ndb.Key(urlsafe=key).get()
    if not source or source.status == 'disabled' or 'listen' not in source.features:
      logging.error('Source not found or disabled. Dropping task.')
      return
    logging.info('Source: %s %s, %s', source.label(), source.key.string_id(),
                 source.bridgy_url(self))

    last_polled = self.request.params['last_polled']
    if last_polled != source.last_polled.strftime(util.POLL_TASK_DATETIME_FORMAT):
      logging.warning('duplicate poll task! deferring to the other task.')
      return

    logging.info('Last poll: %s', self._last_poll_url(source))

    # mark this source as polling
    source.updates = {
      'poll_status': 'polling',
      'last_poll_attempt': util.now_fn(),
      'rate_limited': False,
    }
    source = models.Source.put_updates(source)

    source.updates = {}
    try:
      self.poll(source)
    except Exception as e:
      source.updates['poll_status'] = 'error'
      code, body = util.interpret_http_exception(e)
      if code in source.DISABLE_HTTP_CODES or isinstance(e, models.DisableSource):
        # the user deauthorized the bridgy app, so disable this source.
        # let the task complete successfully so that it's not retried.
        logging.warning('Disabling source due to: %s' % e, stack_info=True)
        source.updates.update({
          'status': 'disabled',
          'poll_status': 'ok',
        })
        body = '%s\nLast poll: %s' % (source.bridgy_url(self),
                                      self._last_poll_url(source))
      elif code in source.RATE_LIMIT_HTTP_CODES:
        logging.info('Rate limited. Marking as error and finishing. %s', e)
        source.updates['rate_limited'] = True
      else:
        raise
    finally:
      source = models.Source.put_updates(source)

    util.add_poll_task(source)

    # feeble attempt to avoid hitting the instance memory limit
    source = None
    gc.collect()
示例#5
0
文件: cron.py 项目: mblaney/bridgy
 def get(self):
   now = datetime.datetime.now()
   queries = [cls.query(Source.features == 'listen', Source.status == 'enabled')
              for cls in models.sources.values()]
   for source in itertools.chain(*queries):
     age = now - source.last_poll_attempt
     if age > max(source.poll_period() * 2, datetime.timedelta(hours=2)):
       logging.info('%s last polled %s ago. Adding new poll task.',
                    source.bridgy_url(self), age)
       util.add_poll_task(source)
示例#6
0
 def get(self):
   now = datetime.datetime.now()
   queries = [cls.query(Source.features == 'listen', Source.status == 'enabled')
              for cls in models.sources.values()]
   for source in itertools.chain(*queries):
     age = now - source.last_poll_attempt
     if age > max(source.poll_period() * 2, datetime.timedelta(hours=2)):
       logging.info('%s last polled %s ago. Adding new poll task.',
                    source.bridgy_url(self), age)
       util.add_poll_task(source)
示例#7
0
文件: cron.py 项目: sanduhrs/bridgy
 def get(self):
   now = datetime.datetime.now()
   queries = [cls.query(Source.features == 'listen',
                        Source.status.IN(('enabled', 'error')))
              for cls in handlers.SOURCES.values()]
   for source in itertools.chain(*queries):
     age = now - source.last_polled
     if age > source.poll_period() * 2:
       logging.info('%s last polled %s ago. Adding new poll task.',
                    source.bridgy_url(self), age)
       util.add_poll_task(source)
示例#8
0
    def post(self, *path_args):
        logging.debug('Params: %s', self.request.params)

        key = self.request.params['source_key']
        source = ndb.Key(urlsafe=key).get()
        if not source or source.status == 'disabled' or 'listen' not in source.features:
            logging.error('Source not found or disabled. Dropping task.')
            return
        logging.info('Source: %s %s, %s', source.label(),
                     source.key.string_id(), source.bridgy_url(self))

        last_polled = self.request.params['last_polled']
        if last_polled != source.last_polled.strftime(
                util.POLL_TASK_DATETIME_FORMAT):
            logging.warning(
                'duplicate poll task! deferring to the other task.')
            return

        logging.info('Last poll: %s/log?start_time=%s&key=%s',
                     self.request.host_url,
                     calendar.timegm(source.last_poll_attempt.utctimetuple()),
                     source.key.urlsafe())

        # mark this source as polling
        source.updates = {
            'poll_status': 'polling',
            'last_poll_attempt': util.now_fn(),
        }
        source = models.Source.put_updates(source)

        source.updates = {}
        try:
            self.poll(source)
        except models.DisableSource:
            # the user deauthorized the bridgy app, so disable this source.
            # let the task complete successfully so that it's not retried.
            source.updates['status'] = 'disabled'
            logging.warning('Disabling source!')
        except:
            source.updates['poll_status'] = 'error'
            raise
        finally:
            source = models.Source.put_updates(source)

        # add new poll task. randomize task ETA to within +/- 20% to try to spread
        # out tasks and prevent thundering herds.
        task_countdown = source.poll_period().total_seconds() * random.uniform(
            .8, 1.2)
        util.add_poll_task(source, countdown=task_countdown)

        # feeble attempt to avoid hitting the instance memory limit
        source = None
        gc.collect()
示例#9
0
文件: tasks.py 项目: tantek/bridgy
  def post(self, *path_args):
    logging.debug('Params: %s', self.request.params)

    key = self.request.params['source_key']
    source = ndb.Key(urlsafe=key).get()
    if not source or source.status == 'disabled' or 'listen' not in source.features:
      logging.error('Source not found or disabled. Dropping task.')
      return
    logging.info('Source: %s %s, %s', source.label(), source.key.string_id(),
                 source.bridgy_url(self))

    last_polled = self.request.params['last_polled']
    if last_polled != source.last_polled.strftime(util.POLL_TASK_DATETIME_FORMAT):
      logging.warning('duplicate poll task! deferring to the other task.')
      return

    logging.info('Last poll: %s/log?start_time=%s&key=%s',
                 self.request.host_url,
                 calendar.timegm(source.last_poll_attempt.utctimetuple()),
                 source.key.urlsafe())

    # mark this source as polling
    source.updates = {
      'poll_status': 'polling',
      'last_poll_attempt': util.now_fn(),
    }
    source = models.Source.put_updates(source)

    source.updates = {}
    try:
      self.poll(source)
    except models.DisableSource:
      # the user deauthorized the bridgy app, so disable this source.
      # let the task complete successfully so that it's not retried.
      source.updates['status'] = 'disabled'
      logging.warning('Disabling source!')
    except:
      source.updates['poll_status'] = 'error'
      raise
    finally:
      source = models.Source.put_updates(source)

    # add new poll task. randomize task ETA to within +/- 20% to try to spread
    # out tasks and prevent thundering herds.
    task_countdown = source.poll_period().total_seconds() * random.uniform(.8, 1.2)
    util.add_poll_task(source, countdown=task_countdown)

    # feeble attempt to avoid hitting the instance memory limit
    source = None
    gc.collect()
示例#10
0
文件: pages.py 项目: snarfed/bridgy
def crawl_now():
    source = None

    @ndb.transactional()
    def setup_refetch_hfeed():
        nonlocal source
        source = util.load_source()
        source.last_hfeed_refetch = models.REFETCH_HFEED_TRIGGER
        source.last_feed_syndication_url = None
        source.put()

    setup_refetch_hfeed()
    util.add_poll_task(source, now=True)
    flash("Crawling now. Refresh in a minute to see what's new!")
    return redirect(source.bridgy_url())
示例#11
0
def replace_poll_tasks():
    """Finds sources missing their poll tasks and adds new ones."""
    queries = [
        cls.query(Source.features == 'listen', Source.status == 'enabled',
                  Source.last_poll_attempt < util.now_fn() - timedelta(days=2))
        for cls in models.sources.values() if cls.AUTO_POLL
    ]
    for source in itertools.chain(*queries):
        age = util.now_fn() - source.last_poll_attempt
        logger.info(
            f'{source.bridgy_url()} last polled {age} ago. Adding new poll task.'
        )
        util.add_poll_task(source)

    return ''
示例#12
0
  def create_new(cls, handler, **kwargs):
    """Creates and saves a new Source and adds a poll task for it.

    Args:
      handler: the current RequestHandler
      **kwargs: passed to new()
    """
    source = cls.new(handler, **kwargs)
    if source is None:
      return None

    feature = source.features[0] if source.features else 'listen'

    if not source.domain_urls:
      # extract domain from the URL set on the user's profile, if any
      auth_entity = kwargs.get('auth_entity')
      if auth_entity and hasattr(auth_entity, 'user_json'):
        url, domain, ok = source._url_and_domain(auth_entity)
        if feature == 'publish' and not ok:
          if not url:
            handler.messages = {'Your %s profile is missing the website field. '
                                'Please add it and try again!' % cls.AS_CLASS.NAME}
          elif not domain:
            handler.messages = {'Could not parse the web site in your %s profile: '
                                '%s\n Please update it and try again!' %
                                (cls.AS_CLASS.NAME, url)}
          else:
            handler.messages = {"Could not connect to the web site in your %s profile: "
                                "%s\n Please update it and try again!" %
                                (cls.AS_CLASS.NAME, url)}
          return None

        if ok:
          if not source.domain_urls:
            source.domain_urls = [url]
          if not source.domains:
            source.domains = [domain]

    # check if this source already exists
    existing = source.key.get()
    if existing:
      # merge some fields
      source.features = set(source.features + existing.features)
      source.populate(**existing.to_dict(include=(
            'created', 'last_hfeed_fetch', 'last_poll_attempt', 'last_polled',
            'last_syndication_url', 'last_webmention_sent', 'superfeedr_secret')))
      verb = 'Updated'
    else:
      verb = 'Added'

    link = ('http://indiewebify.me/send-webmentions/?url=' + source.domain_urls[0]
            if source.domain_urls else 'http://indiewebify.me/#send-webmentions')
    blurb = '%s %s. %s' % (verb, source.label(), {
      'listen': "Refresh to see what we've found!",
      'publish': 'Try previewing a post from your web site!',
      'webmention': '<a href="%s">Try a webmention!</a>' % link,
      }.get(feature, ''))
    logging.info('%s %s', blurb, source.bridgy_url(handler))
    if not existing:
      util.email_me(subject=blurb, body=source.bridgy_url(handler))

    source.verify()
    if source.verified():
      handler.messages = {blurb}

    if 'webmention' in source.features:
      superfeedr.subscribe(source, handler)

    # TODO: ugh, *all* of this should be transactional
    source.put()

    if 'listen' in source.features:
      util.add_poll_task(source)

    return source
示例#13
0
 def post(self):
   self.setup_refetch_hfeed()
   util.add_poll_task(self.source, now=True)
   self.messages.add("Crawling now. Refresh in a minute to see what's new!")
   self.redirect(self.source.bridgy_url(self))
示例#14
0
 def post(self):
   self.get_source()
   util.add_poll_task(self.source, now=True)
   self.messages.add("Polling now. Refresh in a minute to see what's new!")
   self.redirect(self.source.bridgy_url(self))
示例#15
0
  def create_new(cls, handler, user_url=None, **kwargs):
    """Creates and saves a new Source and adds a poll task for it.

    Args:
      handler: the current RequestHandler
      user_url: a string, optional. if provided, supersedes other urls when
        determining the author_url
      **kwargs: passed to new()
    """
    source = cls.new(handler, **kwargs)
    if source is None:
      return None

    new_features = source.features or ['listen']
    if not source.domain_urls:  # defer to the source if it already set this
      auth_entity = kwargs.get('auth_entity')
      if auth_entity and hasattr(auth_entity, 'user_json'):
        source.domain_urls, source.domains = source._urls_and_domains(
          auth_entity, user_url)
        logging.debug('URLs/domains: %s %s', source.domain_urls, source.domains)
        if ('publish' in new_features and
            (not source.domain_urls or not source.domains)):
          handler.messages = {'No valid web sites found in your %s profile. '
                              'Please update it and try again!' % cls.GR_CLASS.NAME}
          return None

    # check if this source already exists
    existing = source.key.get()
    if existing:
      # merge some fields
      source.features = set(source.features + existing.features)
      source.populate(**existing.to_dict(include=(
            'created', 'last_hfeed_refetch', 'last_poll_attempt', 'last_polled',
            'last_syndication_url', 'last_webmention_sent', 'superfeedr_secret')))
      verb = 'Updated'
    else:
      verb = 'Added'

    author_urls = source.get_author_urls()
    link = ('http://indiewebify.me/send-webmentions/?url=' + author_urls[0]
            if author_urls else 'http://indiewebify.me/#send-webmentions')
    blurb = '%s %s. %s' % (verb, source.label(), {
      'listen': "Refresh in a minute to see what we've found!",
      'publish': 'Try previewing a post from your web site!',
      'webmention': '<a href="%s">Try a webmention!</a>' % link,
      }.get(new_features[0], ''))
    logging.info('%s %s', blurb, source.bridgy_url(handler))
    # uncomment to send email notification for each new user
    # if not existing:
    #   util.email_me(subject=blurb, body=source.bridgy_url(handler))

    source.verify()
    if source.verified():
      handler.messages = {blurb}

    if 'webmention' in source.features:
      superfeedr.subscribe(source, handler)

    # TODO: ugh, *all* of this should be transactional
    source.put()

    if 'listen' in source.features:
      util.add_poll_task(source, now=True)
      util.add_poll_task(source, countdown=source.poll_period().total_seconds())

    return source
示例#16
0
 def post(self):
   self.setup_refetch_hfeed()
   util.add_poll_task(self.source, now=True)
   self.messages.add("Crawling now. Refresh in a minute to see what's new!")
   self.redirect(self.source.bridgy_url(self))
示例#17
0
  def post(self, *path_args):
    logging.debug('Params: %s', self.request.params)

    key = self.request.params['source_key']
    source = ndb.Key(urlsafe=key).get()
    if not source or source.status == 'disabled' or 'listen' not in source.features:
      logging.error('Source not found or disabled. Dropping task.')
      return
    logging.info('Source: %s %s, %s', source.label(), source.key.string_id(),
                 source.bridgy_url(self))

    last_polled = self.request.params['last_polled']
    if last_polled != source.last_polled.strftime(util.POLL_TASK_DATETIME_FORMAT):
      logging.warning('duplicate poll task! deferring to the other task.')
      return

    logging.info('Last poll: %s', self._last_poll_url(source))

    # mark this source as polling
    source.updates = {
      'poll_status': 'polling',
      'last_poll_attempt': util.now_fn(),
      'rate_limited': False,
    }
    source = models.Source.put_updates(source)

    source.updates = {}
    try:
      self.poll(source)
    except Exception as e:
      source.updates['poll_status'] = 'error'
      code, body = util.interpret_http_exception(e)
      if code in source.DISABLE_HTTP_CODES or isinstance(e, models.DisableSource):
        # the user deauthorized the bridgy app, so disable this source.
        # let the task complete successfully so that it's not retried.
        logging.warning('Disabling source due to: %s' % e, exc_info=True)
        source.updates.update({
          'status': 'disabled',
          'poll_status': 'ok',
        })
        body = '%s\nLast poll: %s' % (source.bridgy_url(self),
                                      self._last_poll_url(source))
      elif code in source.RATE_LIMIT_HTTP_CODES:
        logging.info('Rate limited. Marking as error and finishing. %s', e)
        source.updates['rate_limited'] = True
      elif ((code and int(code) // 100 == 5) or
            code in source.TRANSIENT_ERROR_HTTP_CODES or
            util.is_connection_failure(e)):
        logging.error('API call failed. Marking as error and finishing. %s: %s\n%s',
                      code, body, e)
        self.abort(util.ERROR_HTTP_RETURN_CODE)
      else:
        raise
    finally:
      source = models.Source.put_updates(source)

    # add new poll task. randomize task ETA to within +/- 20% to try to spread
    # out tasks and prevent thundering herds.
    task_countdown = source.poll_period().total_seconds() * random.uniform(.8, 1.2)
    util.add_poll_task(source, countdown=task_countdown)

    # feeble attempt to avoid hitting the instance memory limit
    source = None
    gc.collect()
示例#18
0
文件: models.py 项目: mblaney/bridgy
    def create_new(cls, handler, user_url=None, **kwargs):
        """Creates and saves a new :class:`Source` and adds a poll task for it.

    Args:
      handler: the current :class:`webapp2.RequestHandler`
      user_url: a string, optional. if provided, supersedes other urls when
        determining the author_url
      **kwargs: passed to :meth:`new()`
    """
        source = cls.new(handler, **kwargs)
        if source is None:
            return None

        new_features = source.features or ['listen']
        if not source.domain_urls:  # defer to the source if it already set this
            auth_entity = kwargs.get('auth_entity')
            if auth_entity and hasattr(auth_entity, 'user_json'):
                source.domain_urls, source.domains = source._urls_and_domains(
                    auth_entity, user_url)
                logging.debug('URLs/domains: %s %s', source.domain_urls,
                              source.domains)
                if ('publish' in new_features
                        and (not source.domain_urls or not source.domains)):
                    handler.messages = {
                        'No valid web sites found in your %s profile. '
                        'Please update it and try again!' % cls.GR_CLASS.NAME
                    }
                    return None

        # check if this source already exists
        existing = source.key.get()
        if existing:
            # merge some fields
            source.features = set(source.features + existing.features)
            source.populate(**existing.to_dict(
                include=('created', 'last_hfeed_refetch', 'last_poll_attempt',
                         'last_polled', 'last_syndication_url',
                         'last_webmention_sent', 'superfeedr_secret')))
            verb = 'Updated'
        else:
            verb = 'Added'

        author_urls = source.get_author_urls()
        link = ('http://indiewebify.me/send-webmentions/?url=' + author_urls[0]
                if author_urls else 'http://indiewebify.me/#send-webmentions')
        blurb = '%s %s. %s' % (
            verb, source.label(), {
                'listen': "Refresh in a minute to see what we've found!",
                'publish': 'Try previewing a post from your web site!',
                'webmention': '<a href="%s">Try a webmention!</a>' % link,
            }.get(new_features[0], ''))
        logging.info('%s %s', blurb, source.bridgy_url(handler))
        # uncomment to send email notification for each new user
        # if not existing:
        #   util.email_me(subject=blurb, body=source.bridgy_url(handler))

        source.verify()
        if source.verified():
            handler.messages = {blurb}

        # TODO: ugh, *all* of this should be transactional
        source.put()

        if 'webmention' in source.features:
            superfeedr.subscribe(source, handler)

        if 'listen' in source.features:
            util.add_poll_task(source, now=True)
            util.add_poll_task(source,
                               countdown=source.poll_period().total_seconds())

        return source
示例#19
0
文件: tasks.py 项目: snarfed/bridgy
                source.updates.update({"status": "disabled", "poll_status": "ok"})
            elif code in util.HTTP_RATE_LIMIT_CODES:
                logging.warning("Rate limited. Marking as error and finishing. %s", e)
                source.updates["rate_limited"] = True
            elif (code and int(code) / 100 == 5) or util.is_connection_failure(e):
                logging.error("API call failed. Marking as error and finishing. %s: %s\n%s", code, body, e)
                self.abort(ERROR_HTTP_RETURN_CODE)
            else:
                raise
        finally:
            source = models.Source.put_updates(source)

        # add new poll task. randomize task ETA to within +/- 20% to try to spread
        # out tasks and prevent thundering herds.
        task_countdown = source.poll_period().total_seconds() * random.uniform(0.8, 1.2)
        util.add_poll_task(source, countdown=task_countdown)

        # feeble attempt to avoid hitting the instance memory limit
        source = None
        gc.collect()

    def poll(self, source):
        """Actually runs the poll.

    Stores property names and values to update in source.updates.
    """
        if source.last_activities_etag or source.last_activity_id:
            logging.debug("Using ETag %s, last activity id %s", source.last_activities_etag, source.last_activity_id)

        #
        # Step 1: fetch activities:
示例#20
0
文件: pages.py 项目: snarfed/bridgy
def poll_now():
    source = util.load_source()
    util.add_poll_task(source, now=True)
    flash("Polling now. Refresh in a minute to see what's new!")
    return redirect(source.bridgy_url())
示例#21
0
 def post(self):
     source = self.auth()
     util.add_poll_task(source)
     self.output('OK')
示例#22
0
 def dispatch_request(self):
     source = self.auth()
     util.add_poll_task(source, now=True)
     return jsonify('OK')
示例#23
0
文件: tasks.py 项目: murindwaz/bridgy
        source.updates['rate_limited'] = True
      elif ((code and int(code) / 100 == 5) or
            (code == '400' and isinstance(source, flickr.Flickr)) or
            util.is_connection_failure(e)):
        logging.error('API call failed. Marking as error and finishing. %s: %s\n%s',
                      code, body, e)
        self.abort(util.ERROR_HTTP_RETURN_CODE)
      else:
        raise
    finally:
      source = models.Source.put_updates(source)

    # add new poll task. randomize task ETA to within +/- 20% to try to spread
    # out tasks and prevent thundering herds.
    task_countdown = source.poll_period().total_seconds() * random.uniform(.8, 1.2)
    util.add_poll_task(source, countdown=task_countdown)

    # feeble attempt to avoid hitting the instance memory limit
    source = None
    gc.collect()

  def poll(self, source):
    """Actually runs the poll.

    Stores property names and values to update in source.updates.
    """
    if source.last_activities_etag or source.last_activity_id:
      logging.debug('Using ETag %s, last activity id %s',
                    source.last_activities_etag, source.last_activity_id)

    #
示例#24
0
    def dispatch_request(self):
        logger.debug(f'Params: {list(request.values.items())}')

        key = request.values['source_key']
        source = g.source = ndb.Key(urlsafe=key).get()
        if not source or source.status == 'disabled' or 'listen' not in source.features:
            logger.error('Source not found or disabled. Dropping task.')
            return ''
        logger.info(
            f'Source: {source.label()} {source.key_id()}, {source.bridgy_url()}'
        )

        if source.AUTO_POLL:
            last_polled = request.values['last_polled']
            if last_polled != source.last_polled.strftime(
                    util.POLL_TASK_DATETIME_FORMAT):
                logger.warning(
                    'duplicate poll task! deferring to the other task.')
                return ''

        logger.info(f'Last poll: {self._last_poll_url(source)}')

        # mark this source as polling
        source.updates = {
            'poll_status': 'polling',
            'last_poll_attempt': util.now_fn(),
            'rate_limited': False,
        }
        source = models.Source.put_updates(source)

        source.updates = {}
        try:
            self.poll(source)
        except Exception as e:
            source.updates['poll_status'] = 'error'
            code, _ = util.interpret_http_exception(e)
            if code in source.DISABLE_HTTP_CODES or isinstance(
                    e, models.DisableSource):
                # the user deauthorized the bridgy app, so disable this source.
                # let the task complete successfully so that it's not retried.
                logger.warning(f'Disabling source due to: {e}', exc_info=True)
                source.updates.update({
                    'status': 'disabled',
                    'poll_status': 'ok',
                })
            elif code in source.RATE_LIMIT_HTTP_CODES:
                logger.info(
                    f'Rate limited. Marking as error and finishing. {e}')
                source.updates['rate_limited'] = True
            else:
                raise
        finally:
            source = models.Source.put_updates(source)

        if source.AUTO_POLL:
            util.add_poll_task(source)

        # feeble attempt to avoid hitting the instance memory limit
        source = None
        gc.collect()

        return 'OK'
示例#25
0
 def post(self):
   self.get_source()
   util.add_poll_task(self.source, now=True)
   self.messages.add("Polling now. Refresh in a minute to see what's new!")
   self.redirect(self.source.bridgy_url(self))