Earlier, the notification-blocking for messages from muted senders
was a side-effect of we never sending notifications for messages
with the "read" flag.
This commit decouples these two things, as a prep for having new
settings which will allow users to **always** receive email
notifications, including when/if they read the message during the
time the notifications is in the queue.
We still mark muted-sender messages as "read" when they are sent,
because that's desirable anyways.
This is a prep change for importing (and using) `dataclasses.field`
elsewhere in the same file, because pyflakes would throw "Import
module shodowed" errors otherwise.
This locks the message row while a reaction is being added/removed,
which will handle race conditions caused by deleting the message
at the same time.
We make sure that events work happens outside the transaction,
so that in case there's some problem with the queue processor, the
locks aren't held for too long.
As a nice side-effect, we also handle race conditions from double
adding reactions, because once the message is locked, a duplicate
request will wait till the earlier transaction commits, and hence
will not throw `IntegrityErrors`s (rather, will be handled in our
safety check in the /views code itself), which earlier had to be
handled explicitly.
This locks the message while creating a submessage, which
will handle race conditions caused by deleting the message
simultaneously.
We make sure that events work happens outside the transaction,
so that in case there's a problem with the queue processor,
the locks aren't held for too long.
Further commits will start locking the message rows while
adding related fields like reactions or submessages,
to handle races caused by deleting the message itself at the
same time.
The message locking implemented then will create a possibility
of deadlocks, where the related field transaction holds a lock
on the message row, and the message-delete transaction holds a
lock on the database row of the related field (which will also
need to be deleted when the message is deleted), and both
transactions wait for each other.
To prevent such a deadlock, we lock the message itself while
it is being deleted, so that the message-delete transaction
will have to wait till the other transaction (which is about
to delete the related field, and also holds a lock on the
message row) commits.
https://chat.zulip.org/#narrow/near/1185943 has more details.
This commit fixes a bug where moving messages between streams was
not allowed for non-admins when allow_community_topic_editing was
set to false and move_messages_between_streams_policy was set to
Realm.POLICY_MEMBERS_ONLY.
The bug is fixed by calling can_edit_content_or_topic only when
topic or content edit is there and not in the case where only
message is moved from one stream to another.
This commit extracts the logic of checking the message edit permissions,
like whether the sender is same as user, whether it is a (no topic)
message or whether community topic editing is allowed, into a separate
function.
This is a prep commit for fixing a bug where permission to move messages
between streams is affected by permission of editing topics.
Previously when enforcing the check to do not allow editing topics
after a certain time, we were checking whether 'content is None' and
considering it as that if content is None then there must be topic
edit.
But after adding support for moving messages between streams it can be
the case that we are neither changing topic nor content and just moving
streams, and the original code raises error if this is done after the
time limit of editing topics, which is wrong.
This commit fixes this by actually checking 'topic_name is not None'.
This will offer users who are self-hosting to adjust
this value. Moreover, this will help to reduce the
overall time taken to test `test_markdown.py` (since
this can be now overridden with `override_settings`
Django decorator).
This is done as a prep commit for #18641.
d66cbd2832 added these mentioning
"always_notify" for some reason, but always_notify clearly isn't a real
thing in this context so the comments need to be fixed to eliminate this
potential source of confusion.
These checks are more related to the API than the editability
or permissions logic, so it makes sense to handle them first
before further processing the request.
Also split the main test class to separate out the tests for
this logic.
This also simplifies some tests by reducing the data setup
required to reach failure.
Tweaked by tabbott to avoid losing the topic_name.strip().
modified_user=sub_info.user and modified_stream=sub_info.stream, added
by commit 6d1f9de7d3 (#16553), were
always coming from the last entry in the loop above, not from the
enclosing list comprehension.
Found by the Pylint rule undefined-loop-variable.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The old name `push_notify_user_ids` was misleading, because
it does not contain user ids which should be notified for
the current message, but rather user ids who have the online
push notifications setting enabled.
When the Tornado server is restarted during an upgrade, if
server has old events with the `push_notify_user_ids` fields,
the server will throw error after this rename. Hence, we need
to explicitly handle such cases while processing the event.
We should only show the referrer name in subject of invitation emails,
and show only 'Zulip' in the 'From' header. This helps in preventing
the email from being marked as suspicious by the detection systems
when they see an employee's name as sender of an email sent from an
unrelated domain.
The behavior is already the same for reminder invitation emails where
we do not show name and only 'Zulip' in the 'From' header.
Fixes#18256.
Commit 1a7ddd9ea3 “Fix
UserActivityInterval overlap bug” introduced a mathematically
incorrect assertion about how intervals work. There’s a third way two
intervals could overlap: both the start and end of the old interval
could be inside the new interval. This probably can’t happen here
because the old interval should be at least as long as the new
interval. However, a correct overlap test can be formulated in a
simpler way anyway.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Convert this function that absolutely makes a stream web public.
We already have do_change_stream_invite_only to convert
streams to public and private streams.
We also update all the fields that should be set when a stream
is made web public.
After re-assignment, mypy will still think the type of
`widget_content` to be `str`, not `Dict`. So we need to
create a new variable.
This is a prep change for stronger type checking in this
code.
Previously only admins were allowed to move messages between streams
and admins are allowed to post in any stream irresepctive of stream
post policy, so there was no need to check for stream post policy.
But as we now allow other members to also move messages, we need
to check whether the user who is moving the message is allowed
to post to the target stream (i.e. stream to which the messages
are being moved) and thus we allow moving messages only if the
user is allowed to post in target stream.
This new function optimizes how we fetch subscriptions
for streams. Basically, it excludes most long-term-idle
users from the query.
With 8k users, of which all but 400 are long term idle,
this speeds up get_recipient_info from about 150ms
to 50ms.
Overall this change appears to save a factor of 2-3 in the backend
processing time for sending or editing a message in large, public
streams in chat.zulip.org (at 18K users today).
We combine the two loops into one, so that we
can check our flags before creating the
UserMessageList object.
And we lift a few calculations out of the loop.
For 8k users, with 95% long-term-idle, this was
about a 10x speedup for me. (~30ms -> 3ms)
As discussed in the comment, this is a critical scalability
optimization for organizations with thousands of users.
With substantial comment updates by tabbott.
This extends the /json/typing endpoint to also accept
stream_id and topic. With this change, the requests
sent to /json/typing should have these:
* `to`: a list set to
- recipients for a PM
- stream_id for a stream message
* `topic`, in case of stream message
along with `op`(start or stop).
On receiving a request with stream_id and topic, we send
typing events to clients with stream_typing_notifications set
to True for all users subscribed to that stream.
akshatdalton
Vishnu KS
Abhijeet Prasad Bodas
sahil839
Mateusz Mandera
Anders Kaseorg
Aman Agrawal
Tim Abbott
Steve Howell
PIG208
Dinesh