Standardizing the Zulip codebase to use UTC everywhere. Note that unlike
many recent commits in this line, this changes does result in a change in
behavior.
datetime.utcnow() is a timezone-naive datetime. The Django ORM interprets it
in the settings.TIME_ZONE timezone (e.g. 'America/New_York' in the
development server). We perhaps haven't noticed errors yet since with
'America/New_York' all it means is that emails are sent 5 hours early, or a
slightly different set of messages are included in the digest.
When you pass a naive datetime to the Django ORM, it uses settings.TIME_ZONE
for the time zone. In the development environment, both settings.TIME_ZONE
and datetime.now() use 'America/New_York', so there is no change in behavior
there. (fromtimestamp with no tz argument uses the same timezone as
datetime.now)
We are soon going to change settings.TIME_ZONE to UTC, so need to remove
naive datetimes from queries to the ORM.
This actually fixes previously broken behavior, since 'date' here gets
turned into the 'day' argument of seconds_active_during_day(day), where
tzinfo is set to UTC.
I noticed while reviewing #3807 that we still haven't fixed this;
because timestamps are primarily displayed in the message view, fixing
this is trivial.
Apparently, our logic was broken on systems where altKey and metaKey
are different, because we didn't ignore hotkey combinations that
included altKey.
Fixes#3738.
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 :).
This fixes a weird issue where the following sequences of tests would fail:
test-backend
zerver.tests.test_messages.PersonalMessagesTest.test_personal_to_self
zerver.tests.test_report.TestReport.test_report_error
zerver.tests.test_templates.TemplateTestCase.test_custom_tos_template
It appears that all 3 tests are required for the failure.
While it's not entirely clear what the cause is, a very likely factor
is that settings.DEBUG is special, and so changing it at runtime is
likely to cause weird problems like this.
We fix this by replacing it with settings.DEVELOPMENT, which has the
same value in all environments, but doesn't have this problem of being
a special Django thing.
This restyles the subscriber list in the subscription settings panel to
have a more padded and lighter aesthetic and replaces the dark red
buttons with transparent buttons that have only red borders and inner
text.