This is a better solution to the problem of how _pg_re_escape should
handle the null character. There's really no good reason to have a
null character in a stream name.
In cases where old unread messages in the home view might have been
leaked (either due to bugs or unusual muting interactions), it's
theoretically possible for the first unread message in the home view
to be far older than the pointer.
Since the Zulip mobile app is loading messages following the
use_first_unread logic, we need to plug this gap.
Probably a longer-term solution will involve changing how
update_message_flags works to automatically advance the pointer, but
this change should make it possible for the mobile apps to
consistently use the `use_first_unread` mechanism for fetching the
latest home view messages.
With tweaks to the tests by tabbott.
Fixeszulip/zulip-mobile#422.
textsearch based full text search doesn't match text in link tag but
PGroonga based full text search can match text in link tag.
Without this change, highlighting text in link tag generates broken
HTML.
This makes get_stream match get_realm, get_user_profile_by_email,
etc., in interface, and is more convenient for mypy annotations
because `get_stream` now doesn't return an Optional[Stream].
An empty narrow (ie, the home view) can be represented in code as either
`None` or `[]` but we had incorrect handling that failed to fully
properly deal with either case.
(1) In `get_stream_name_from_narrow`, we failed to deal with `None` by
trying to always iterate over `narrow`.
(2) In several other places, we failed to deal with `[]` by explicitly
checking `if narrow is None` or `if narrow is not None`. Changing these
to truthiness checks should work for both the `None` and `[]` cases.
Like many rare-case code with new tests, it turns out that the logic
for handling null characters in our Zephyr postgres query escaping
never worked, in multiple ways. First, it always changed the second
character in s, not the current one being inspected, and second, the
value it replaced it with was no the correct postgres escape of the
null byte. We fix this and add tests.
This completes the effort to get zerver/views/messages.py to 100%
test coverage.
Fixes#1006.
When you edit a message to contain links, and URL previews are
enabled, previously we'd throw an exception, because the realm ID
wasn't included in the event.
Also adds a test so that we can have effective test coverage on this
codepath, though this history is actually that I found the bug through
writing this test :).
Change `from django.utils.timezone import now` to
`from django.utils import timezone`.
This is both because now() is ambiguous (could be datetime.datetime.now),
and more importantly to make it easier to write a lint rule against
datetime.datetime.now().
The comments explain why this change is correct. This change is
useful because it's better to not have dead code paths, both because
it makes our life easier for coverage analysis, and because the else
statement provided the illusion that it could actually happen.
If the analysis in that comment is wrong, we'd rather have a 500 error
so we fix the bug than things silently sorta working.
This arguably regresses the Zephyr experience, in that we no longer
consider 'foo.d.d.d.d.d' to be something that gets narrowed in with
the rest, but that's a pretty rare use case anyway.
In practice, using that many '.d's anyway only happens a few times a
year.
This makes it super easy for frontend code using this view code to
produce a nice display of the history.
This also fixes an off-by-one error with the timestamps.
Based on work by Kartik Maji in #1204.
This has a few significant changes from the original version:
* We correctly handle filling in data for topic edits
* Has a complete test suite verifying correctness of the logic
* Currently, it doesn't include a special "start" entry
Things we may want to further change include:
* Adding a special "start" entry.
* Reversing the order of the history data returned for clarity.
This fixes a bug where update_message_backend would do one memcached
query per user receiving a given message. Right now we just do a
single bulk database query, but in principle we could use
generic_bulk_cached_fetch to use the cache as well.
This changes bugdown to use the realm passed in by the caller (if any)
for rendering, fixing a problem where bots such as the notification
bot would have their messages rendering using the admin realm's
settings, not the settings of the realm their messages are being sent
into.
Also adds a test for the notification bot case.
Fixes#3215.
Finishes the refactoring started in c1bbd8d. The goal of the refactoring is
to change the argument to get_realm from a Realm.domain to a
Realm.string_id. The steps were
* Add a new function, get_realm_by_string_id.
* Change all calls to get_realm to use get_realm_by_string_id instead.
* Remove get_realm.
* (This commit) Rename get_realm_by_string_id to get_realm.
Part of a larger migration to remove the Realm.domain field entirely.
This change adds support for displaying inline open graph previews for
links posted into Zulip.
It is designed to interact correctly with message editing.
This adds the new settings.INLINE_URL_EMBED_PREVIEW setting to control
whether this feature is enabled.
By default, this setting is currently disabled, so that we can burn it
in for a bit before it impacts users more broadly.
Eventually, we may want to make this manageable via a (set of?)
per-realm settings. E.g. I can imagine a realm wanting to be able to
enable/disable it for certain URLs.