Commit Graph

233 Commits

Author SHA1 Message Date
Anders Kaseorg e00d4be6d5 events: Check last_event_id for validity.
This verifies that the client passed a last_event_id that actually
came from the queue instead of making up an ID from the future.  It
turns out one of our tests was making up such an ID, but legitimate
clients are expected not to do so.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-07-26 17:18:28 -07:00
Wyatt Hoodes a2fa1a6f25 handlers: Remove duplicate type annotation.
`self._request_middleware` is already typed in the `__init__` method.
2019-07-22 16:27:39 -07:00
Anders Kaseorg 3968fe9fdf tornado: Remove unused imports.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-02-02 17:33:13 -08:00
Anders Kaseorg e5bf0c0a69 event_queue: Avoid hardcoded paths in /var/tmp.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-01-15 16:12:05 -08:00
Tim Abbott 930e65d1be push: Include type in add-push-notification events.
This should make us able to clean up the logic for this in the future
(right now, we still need to do the .get() for backwards compatibility).
2018-12-15 13:58:52 -08:00
Tim Abbott cfeb87c1c9 tornado: Require non-negative lifespan_secs.
Previously, our validation for this field only checked it was an
integer, and you could in theory send invalid negative values here.
2018-12-05 14:50:37 -08:00
Tim Abbott 8e4d6fa045 event_queue: Rename IDLE_EVENT_QUEUE_TIMEOUT_SECS.
This is a default value, not an always-used value, and its name should
reflect that.
2018-12-05 14:48:40 -08:00
Tim Abbott 94dfff1c4e event queue: Don't set a minimum for lifespan_secs.
This makes it more convenient for developers to set very short values
for this (e.g. 1 minute) for the purposes of testing/debugging; there
aren't obvious problems with letting users set short values for this.
2018-12-05 14:47:53 -08:00
Tim Abbott a3c2d49f0c event_queue: Change garbage-collection frequency to 1 minute.
This is designed to help make it more convenient to do manual testing
where we need event queues to be garbage-collected.
2018-12-05 14:42:53 -08:00
Tim Abbott 6dd69b9bff event_queue: Rename ClientDescriptor.idle to expired.
This better reflects the situation with these event queues -- they're
not idle, they are expired and to be garbage collected.
2018-12-05 14:42:53 -08:00
Tim Abbott 408af032a0 event_queue: Remove queue_timeout migration code from 2013.
There's never going to be an event queue without a queue_timeout
property anymore.
2018-12-05 14:24:38 -08:00
Tim Abbott d0f71881f4 docs: Add detailed documentation on the process for sending messages.
This has long been something missing from our suite of documentation.
2018-11-29 16:25:35 -08:00
Tim Abbott 64960383e4 mypy: Fix missing type annotation in tornado code. 2018-11-20 19:08:14 -08:00
Tim Abbott 46acb608b1 tornado: Include port number in logging statements. 2018-11-20 18:45:22 -08:00
Tim Abbott 40ff41e135 tornado: Fix populate_db failing to call send_event properly.
This isn't the right long-term fix; theoretically, send_event
shouldn't be doing anything with populate_db, but that's for later.
2018-11-02 17:07:21 -07:00
Tim Abbott 0cac7e1cd3 tornado: Extract functions for Tornado queue names.
This moves all control for what queue to use for which realm in our
Tornado system to just the sharding.py file; no actual sharding is
done yet.
2018-11-02 17:00:10 -07:00
Tim Abbott 152c44b6d2 tornado: Extract function for specifying Tornado URI.
Since TORNADO_PROCESSES is 1 in all default configurations, this
doesn't have any user-facing effect.
2018-11-02 17:00:09 -07:00
Tim Abbott ec065e92ee tornado: Store port on SockJS connection object.
This will make it available for use inside our websockets code.
2018-11-02 16:55:33 -07:00
Tim Abbott ea1ec68899 events: Pass a realm object into send_event.
This is a preparator refactor for supporting hosting different Tornado
processes on different servers; to look up which Tornado server we
should be sending the event to, we'll need the realm object.
2018-11-02 16:47:39 -07:00
Tim Abbott 75e48459b5 tornado: Support using a port-aware file for dumping event queues.
This should make it possible for there to safely be multiple Tornado
processes running on different ports on the same system.

It may also fix a rare race bug in development, where previously, it
was possible for the Tornados processes for Casper and the main
development server to interfere; I haven't investigated whether this
was a real bug or not, but now those two services will use independent
Tornado files.

We still need to add something to direct traffic between the different
Tornado processes.
2018-11-02 16:47:39 -07:00
Tim Abbott 9339c191da tornado: Fix missing mypy annotation. 2018-11-02 14:43:55 -07:00
Tim Abbott cf24a20185 tornado: Refactor logic for persistent queue filenames.
Now, these are computed using a function, which will make it easier to
edit these paths to depend on which Tornado process it is in coming
commits.
2018-11-02 14:19:10 -07:00
Tim Abbott 98f28fa6ce tornado: Remove unused send_notification() function.
This hasn't been used in a long time, probably since
3fddc11cc2.
2018-11-02 14:14:39 -07:00
neiljp (Neil Pilgrim) 482383b6f7 mypy: Add Optional to tornado/descriptors.py; remove from mypy.ini. 2018-10-29 12:53:16 -07:00
Tim Abbott e4813e462b tornado: Rename async_request_{restart,stop} to mention timer.
Previously, these timer accounting functions could be easily mistaken
for referring to starting/stopping the request.  By adding timer to
the name, we make the code easier for the casual observer to read and
understand.
2018-10-16 15:39:10 -07:00
Tim Abbott 58307f80aa event_queue: Stop mocking push notifications in most tests.
Historically, queue_json_publish had a special third argument that was
basically its default mock behavior in the test suite.  We've been
migrating away from that model, because it was confusing and resulted
in poor test coverage of our queue worker code paths; this was one of
the last holdouts.

As it turns out, we don't exercise this code path in a way that
impacts tests much; the main downside of this change is a likely small
penalty to performance of the full test suite when sending private
messages.
2018-08-10 13:58:39 -07:00
Tim Abbott 02ae71f27f api: Stop using API keys for Django->Tornado authentication.
As part of our effort to change the data model away from each user
having a single API key, we're eliminating the couple requests that
were made from Django to Tornado (as part of a /register or home
request) where we used the user's API key grabbed from the database
for authentication.

Instead, we use the (already existing) internal_notify_view
authentication mechanism, which uses the SHARED_SECRET setting for
security, for these requests, and just fetch the user object using
get_user_profile_by_id directly.

Tweaked by Yago to include the new /api/v1/events/internal endpoint in
the exempt_patterns list in test_helpers, since it's an endpoint we call
through Tornado. Also added a couple missing return type annotations.
2018-07-30 12:28:31 -07:00
Tim Abbott 07af59d4cc tornado: Split get_events_backend into two functions.
The lower-layer function, now called get_events_backend, is intended
to be called by multiple code paths (including the upcoming
get_events_internal).
2018-07-30 12:28:31 -07:00
Sarah de947445ca event_queue: Add stream_email_notify.
This adds support to the event queue system for triggering
missed-message notifications (whether push or email) to support the
stream push notifications feature.
2018-07-14 12:19:33 +05:30
Tim Abbott 58a7a390c8 event_queue: Call build_offline_notification unconditionally.
Previously, maybe_enqueue_notifications had this very subtle logic,
where it set the notice variable only inside the block for push
notifications, but then also used it inside the block for email
notifications.

This "worked", because previously the conditions for push
notifications were always true if the conditions for email
notifications were, but the code was unnecessarily confusing.  The
only good reason to write it this way is if build_offline_notification
was expensive; in fact, the most expensive thing it does is calling
time.time(), so that reason does not apply here.

This was further confusing, in that in the original logic, we relied
on the fact that push notification code path edited the "notice"
dictionary for further processing.

Instead, we just call it separately and setup the data separately in
each code path.
2018-07-14 12:01:59 +05:30
Tim Abbott a09ebf0551 event_queue: Remove confusing comment about rabbitmq.
Whatever RabbitMQ check this comment used to be next to, it isn't next
to anymore.
2018-07-14 12:00:37 +05:30
Tim Abbott 08ed1b4605 notifications: Set trigger on offline email notifications.
This data will be required for correctly implementing the upcoming
stream_push_notify feature; it also helps support cleaning up the code
for the existing stream mentions logic.
2018-07-14 11:57:28 +05:30
Vishnu Ks 54a002c2e2 requirements: Upgrade pyflakes to 2.0.0.
We fix a few errors that only the new version finds.
2018-05-24 11:31:36 -07:00
Tim Abbott ae0a929988 tornado: Ensure that tornado doesn't autoreload into syntax errors.
We've for a long time been plagued by run-dev.py needing to be
restarted every time one does a rebase that has merge conflicts,
because the Tornado process restarts itself into a syntax error and
crashes.

This fixes the Tornado autoreload process to check explicitly for
whether files actually syntax-check before trying to actually reload
the Tornado process to run that code.

There are a few things that are a bit janky:
* Ideally, this would go into Tornado upstream
* We removed the `_watched_files` feature, which we weren't using.
* Ideally, we'd use something other than `importlib.reload` that just
  does the syntax-check without adjusting the state within our current
  process.

Fixes #4351.
2018-05-20 16:50:10 -07:00
Tim Abbott 4f4d56b021 tornado: Import autoreload module from upstream Tornado.
This allows to patch things directly.
2018-05-20 16:49:17 -07:00
Tim Abbott 276b78e952 tornado: Extract AsyncDjangoHandlerBase and mark as nocoverage.
We're never going to add tests for this block, which is fundamentally
well-tested code from Django with a since line changed which is hard
to screw up (long-polling will not work at all without it).  The hope
is to remove it entirely and replace it with a cleaner monkey-patch,
but until then, unit tests for it would be redundant.
2018-05-15 18:39:52 -07:00
Aditya Bansal e79a2f2707 zerver/tornado: Change use of typing.Text to str. 2018-05-12 15:22:38 -07:00
Aditya Bansal 1f9244e060 zerver/lib: Change use of typing.Text to str. 2018-05-10 14:19:49 -07:00
Tim Abbott 3872e5521e tornado: Mark setup_tornado_rabbitmq for nocoverage.
We only use this in the direct management command, and it involves
some autoreload process setup stuff that we probably don't want to do
in our unit tests regardless.
2018-05-09 20:49:13 -07:00
Tim Abbott 3fd8d718f4 websockets: Fix race condition in CSRF token initialization.
It appears that we were not always initializing the Socket object
after `setup.js` had the opportunity to set csrf_token.

This should fix #6961.
2018-03-31 09:29:56 -07:00
Steve Howell 431ede77c6 minor: Clean up how we set flags in events.
This is basically a simple fix, where we consistently set
`flags` to an empty array when we pass it around.  The history
here is that we had kind of a nasty bug from setting it to
`None`, which only showed up in the somewhat obscure circumstance
of somebody subscribing to all stream events in our API.

Fixes #7921
2018-03-28 15:56:03 -07:00
neiljp (Neil Pilgrim) 2ed6da77c7 mypy: Rewrite some middleware annotations to use ViewFuncT. 2018-03-17 23:25:05 +00:00
neiljp (Neil Pilgrim) a3d8cc1f86 Mypy: Migrate tornado/descriptors.py to python3 function annotations.
Use quoted form of ClientDescriptor to break presumed circular dependency,
and modify import statement to shorten quotes.
2018-03-15 12:54:43 -07:00
neiljp (Neil Pilgrim) f184249191 mypy: Clarify valid types in tornado views via new variable. 2018-02-13 11:40:52 -08:00
rht 71e883b602 zerver/tornado: Remove u prefix from strings. 2018-02-05 12:11:33 -08:00
rht 9a8d2244ca django-2.0: Shift to resolvers from urlresolvers.
The old name is deprecated.
2018-01-30 10:53:54 -08:00
rht 185fd99816 mypy: Use Python 3 type syntax in several files. 2017-12-30 07:34:51 -05:00
Steve Howell 80477da481 quick fix: Stop tracebacks with missedmessage_hook.
A `None` value is not properly handled in this function, which
indicates some lack of testing or a recent regression we don't
understand.  We were getting lots of tracebacks from this line
of code on our test server:

    mentioned = 'mentioned' in flags and 'read' not in flags
2017-12-28 08:10:56 -05:00
fredfishgames 55801d2feb mypy: Use Python 3 type syntax in zerver/tornado/event_queue.py. 2017-12-26 08:31:09 -05:00
Arseny Chekanov c2c023f0cf mypy: Use Python 3 type syntax in zerver/tornado/websocket_client.py. 2017-12-09 16:50:12 -08:00
Greg Price c32b16715d tornado: Use spiffy new `call_later` rather than `add_timeout`.
This method was new in Tornado 4.0.  It saves us from having to get
the time ourselves and do the arithmetic -- which not only makes the
code a bit shorter, but also easier to get right.  Tornado docs (see
http://www.tornadoweb.org/en/stable/ioloop.html) say we should have
been getting the time from `ioloop.time()` rather than hardcoding
`time.time()`, because the loop could e.g. be running on the
`time.monotonic()` clock.
2017-11-29 16:56:29 -08:00
rht 115f7e6055 zerver/tornado: Use Python 3 syntax for typing (part 2). 2017-11-28 17:02:24 -08:00
Robert Hönig 0e0a8a2b14 queue processor tests: Call consume by default.
This significantly improves the API for queue_json_publish to not be
overly focused on what the behavior of this function should be in our
unit tests.
2017-11-26 11:45:34 -08:00
Tim Abbott 054952a44a docs: Update links from codebase to point to ReadTheDocs. 2017-11-16 10:53:49 -08:00
Tim Abbott dc8dd2333c tornado: Sort imports in files with no merge conflicts. 2017-11-15 15:53:11 -08:00
neiljp (Neil Pilgrim) 790cd5e7c8 mypy: Specify generic type parameters in cachify decorator.
Use of the decorator in event_queue.py suggests concrete return type,
for application of copy() function.
2017-11-08 12:40:40 -08:00
Tim Abbott 7e13d74529 tornado: Fix hardcoding of URI scheme in sockjs_url. 2017-11-07 17:24:10 -08:00
rht 22e1456c4d zerver/tornado: Text-wrap long lines exceeding 110. 2017-11-07 17:24:08 -08:00
rht 926f0a7b45 zerver/tornado: Remove unused imports (F401). 2017-11-07 16:36:57 -08:00
rht fa7016644e refactor: Remove six.moves.https_cookies import. 2017-11-07 10:51:44 -08:00
rht 9c7d5812ce refactor: Remove six.moves.urllib.parse import. 2017-11-07 10:51:44 -08:00
rht 19bd335cbb Change urllib import to be Python 3-specific. 2017-11-07 10:46:42 -08:00
Steve Howell 2bbfda041a Support client_gravatar field for event registration.
This commit allows clients to register client_gravatar=True, and
then we recognize that flag for message events.  If the flag is
True, we will not calculate gravatar URLs and let the clients do
it themselves.  (Clients can calculate gravatar URLs based on
emails with just a little bit of code.)
2017-11-07 10:42:17 -08:00
Steve Howell 88e1e284bb Restructure send-message code for gravatars.
This refactoring doesn't change behavior, but it sets us up
to more easily handle a register setting for `client_gravatar`,
which will allow clients to tell us they're going to compute
their own gravatar URLs.

The `client_gravatar` flag already exists in our code, but it
is only used for Django views (users/messages) but not for
Zulip events.

The main change is to move the call to `set_sender_avatar` into
`finalize_payload`, which adds the boolean `client_gravatar`
parameter to that function.  And then we update various callers
to supply that flag.

One small performance benefit of this change is that we now
lazily compute the client message payloads in
`event_queue.process_message_event` now, so this will improve
performance if all interested clients have the same value of
`apply_markdown`.  But the change here is really preparing us
for the additional boolean parameter, which will cause us to
have four variations of the payload.
2017-11-07 10:36:02 -08:00
Steve Howell 2a6c6518fc refactor: Don't shadow message_dict in process_message_event(). 2017-11-07 10:36:02 -08:00
rht 2ceb0b45b3 zerver/tornado: Remove inheritance from object. 2017-11-06 08:53:48 -08:00
neiljp (Neil Pilgrim) 54cbb808e6 mypy: Add explicit Any parameters to get_user_events return type. 2017-11-04 19:47:44 -07:00
Greg Price 68b0a419ec decorator: Cut a bunch of dead imports of two view decorators.
Saw these when grepping for these two decorators; they're actually
more numerous than the surviving use sites are.  Cut out the noise.
2017-11-04 19:27:00 -07:00
Tim Abbott c3db9513f2 tornado: Delete fake_message_sender.
This test helper method duplicated a bunch of logic in
`zerver/worker/queue_processors.py` in a specialized fashion for the
tests.  Now that we're using `call_consume_in_tests` in this code
path, we don't need it.
2017-11-03 14:11:23 -07:00
Tim Abbott eade4d0052 tornado: Use call_consume_in_tests for message_sender queue.
This increases test coverage of queue_processors.py significantly,
with no real cost, achieving valuable progress torwards #6542.
2017-11-03 14:09:48 -07:00
neiljp (Neil Pilgrim) 7288451329 mypy: Slightly clarify Callable parameter to WebsocketClient.__init__. 2017-10-31 00:03:35 -07:00
neiljp (Neil Pilgrim) 452802bf75 mypy: Add Callable parameters/returns to AsyncDjangoHandler in handlers.py, 2017-10-31 00:03:35 -07:00
rht c4fcff7178 refactor: Replace super(.*self) with Python 3-specific super().
We change all the instances except for the `test_helpers.py`
TimeTrackingCursor monkey-patching, which actually needs to specify
the base class.
2017-10-30 14:30:25 -07:00
rht 1047733486 zerver/tornado: Use python 3 syntax for typing. 2017-10-26 21:58:22 -07:00
Steve Howell 635675fe48 Reduce queries needed for sending messages.
In do_send_messages, we only produce one dictionary for
the event queues, instead of different flavors for text
vs. html.  This prevents two unnecessary queries to the
database.

It also means we only put one dictionary on the "message"
event queue instead of two, albeit a wider one that has
some values that won't be sent to the actual clients.

This wider dictionary from MessageDict.wide_dict is also
used for the `feedback_messages` queue and service bot
queues.  Since the extra fields are possibly useful down
the road, and they'll just be ignored for now, we don't
bother to remove them.  Also, those queue processors won't
have access to `content_type`, which they shouldn't need.

Fixes #6947
2017-10-26 16:35:28 -07:00
Steve Howell 0cef7c9fd5 Refactor: Extract get_client_info_for_message_event().
This removes some clutter from process_message_event, and it
makes process_message_event() a bit easier to test.
2017-10-26 16:35:28 -07:00
Tim Abbott e98ca0714b notifications: Simplify how triggers are passed around.
This removes the utterly unnecessary `triggers` dict (which always was
a dict with exactly one value True) in favor of a single field,
'trigger'.

Inspired by Kunal Gupta's work in #6659.
2017-10-18 21:42:05 -07:00
Tim Abbott 513b6d624f notifications: Fix double-sending in missedmessage_hook.
While the missedmessage_hook logic originally did a reasonably good
job of avoiding double-sending notifications, there was a corner case
it didn't handle, namely a user who had been presence-idle when a
message was sent and became also event-queue-idle as well within the
next 10 minutes.  For those users, they got a notification at message
send time, and the missedmessage_hook would deliver it a second time.

We fix this by just checking the conveniently available push_notified
and email_notified variables that indicate whether the message already
had a notification triggered.

Fixes #7031.
2017-10-17 21:54:03 -07:00
derAnfaenger af699500b7 tests: Add option to call queue processor consumer.
This makes tests of queue processors more realistic,
by adding a parameter to `queue_json_publish` that
calls a queue's consumer function if accessed in a test.

Fixes part of #6542.
2017-10-16 23:20:13 -07:00
Steve Howell f0194f1821 Reset client descriptors at the start of event tests.
Fixes #6958
2017-10-12 10:27:16 -07:00
Tim Abbott 539ff20ec2 socket: Add logging for CSRF issue in logging code.
This should help make it possible to debug #6961.
2017-10-11 22:39:14 -07:00
Steve Howell 9ecf41980c Remove message.is_mentioned in message events.
This field would get overwritten with an improper value when
we looped over multiple clients, due to not making full copies
of the message dictionary.  This failure would be somewhat
random depending on how clients were ordered in the loop.

The only consumers of this field were the mobile app and the
apply-events-to-unread-counts logic.  Both of these will now
use `flags` instead.
2017-10-11 16:55:34 -07:00
Steve Howell 10a30bece1 Rename presence_idle_userids -> presence_idle_user_ids. 2017-10-07 12:16:45 -07:00
Tim Abbott f11832536c event_queue: Fix a now-incorrect mypy annotation.
It's not clear tagging things like this as an Iterable is a good idea,
when it's in fact definitely a list.
2017-10-05 23:11:16 -07:00
Tim Abbott fbdeb63bc9 tornado: Add debug logging for time consumed processing an event.
I've occasionally found this logging helpful.
2017-10-05 22:08:29 -07:00
Steve Howell aae0b2a826 Notify offline users about edited stream messages.
We now do push notifications and missed message emails
for offline users who are subscribed to the stream for
a message that has been edited, but we short circuit
the offline-notification logic for any user who presumably
would have already received a notification on the original
message.

This effectively boils down to sending notifications to newly
mentioned users.  The motivating use case here is that you
forget to mention somebody in a message, and then you edit
the message to mention the person.  If they are offline, they
will now get pushed notifications and missed message emails,
with some minor caveats.

We try to mostly use the same techniques here as the
send-message code path, and we share common code with the
send-message path once we get to the Tornado layer and call
maybe_enqueue_notifications.

The major places where we differ are in a function called
maybe_enqueue_notifications_for_message_update, and the top
of that function short circuits a bunch of cases where we
can mostly assume that the original message had an offline
notification.

We can expect a couple changes in the future:

    * Requirements may change here, and it might make sense
      to send offline notifications on the update side even
      in circumstances where the original message had a
      notification.

    * We may track more notifications in a DB model, which
      may simplify our short-circuit logic.

In the view/action layer, we already had two separate codepaths
for send-message and update-message, but this mostly echoes
what the send-message path does in terms of collecting data
about recipients.
2017-10-03 15:57:06 -07:00
Tim Abbott 3a286756ff tornado: Document missedmessage_hook in more detail. 2017-10-03 10:55:38 -07:00
Steve Howell e660428c21 Rename missed_message_userids to presence_idle_userids. 2017-10-02 15:19:28 -07:00
rht 426548097e zerver/tornado: Remove from __future__ import *. 2017-09-28 10:14:03 -07:00
rht 241e318eba zerver/tornado: remove `import six`. 2017-09-27 19:10:28 -07:00
rht b8aa92194c zerver/tornado: Remove print_function. 2017-09-27 18:05:45 -07:00
rht a7803cbf1b zerver/tornado: remove `import six`.
Tweaked by tabbott to remove the changes in
zerver/tornado/handlers.py, which are hard to test.
2017-09-27 17:07:08 -07:00
Tim Abbott 06e6b3abe1 event_queue: Fixed stream_push_notify code path in missedmessage_hook.
This finishes implementing the stream_push_notify feature, which
previously didn't work if you were not idle when the message was sent.
2017-09-27 15:57:48 -07:00
Tim Abbott 2b1ea1555c event_queue: Simplify API of maybe_enqueue_notifications. 2017-09-27 15:57:47 -07:00
Tim Abbott fa461c6a4f missedmessage_hook: Fix name of ClientDescription argument.
This was previously incorrectly named to suggest it was the EventQueue
object.
2017-09-27 15:57:47 -07:00
Tim Abbott d6732d0781 event_queue: Fix handling of private messages in missedmessage_hook.
Previously, we didn't correctly trigger email/push notifications for
PMs in these cases.
2017-09-27 15:57:47 -07:00
Tim Abbott 71fc8363b4 tests: Add a test suite for maybe_enqueue_notifications.
This ensures that as we expand the logic for under what circumstances
email and push notifications should be sent, we can be confident about
this code path always doing the right thing.
2017-09-27 15:55:29 -07:00
Tim Abbott 830d3e8d07 event_queue: Use maybe_enqueue_notifications in missedmessage_hook.
This fixes a problem introduced in the recent refactoring where
`triggers` would not be set correctly when a push or email
notification was triggered by missedmessage_hook.

Fixes #6612.
2017-09-27 15:55:29 -07:00
Tim Abbott 9749826e9c event_queue: Refactor code for checking if a message was mentioned.
Now, the two code paths do the same thing for this check.

It seems like there may be more work to do here, in that
wildcard_mentioned messages seem to not be eligible for sending
email/push notifications.  We probably want to add some logic there
for the user doing the mention to control whether or not it does.
2017-09-27 15:55:29 -07:00
Tim Abbott f68089fbe1 event_queue: Extract maybe_enqueue_notifications.
Conceptually, this code path should be shared between the
process_message handler and the garbage-collection hook.
2017-09-27 15:55:29 -07:00