Restore the default django.utils.log.AdminEmailHandler when
ERROR_REPORTING is enabled. Those with more sophisticated needs can
turn it off and use Sentry or a Sentry-compatible system.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Pass the HttpRequest explicitly through the two webhooks that log to
the webhook loggers.
get_current_request is now unused, so remove it (in the same commit
for test coverage reasons).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
These were useful as a transitional workaround to ignore type errors
that only show up with django-stubs, while avoiding errors about
unused type: ignore comments without django-stubs. Now that the
django-stubs transition is complete, switch to type: ignore comments
so that mypy will tell us if they become unnecessary. Many already
have.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This utilizes the generic `BaseNotes` we added for multipurpose
patching. With this migration as an example, we can further support
more types of notes to replace the monkey-patching approach we have used
throughout the codebase for type safety.
This concludes the HttpRequest migration to eliminate arbitrary
attributes (except private ones that are belong to django) attached
to the request object during runtime and migrated them to a
separate data structure dedicated for the purpose of adding
information (so called notes) to a HttpRequest.
This clears it out of the data sent to Sentry, where it is duplicative
with the indexed metadata -- and potentially exposes PHI if Sentry's
"make this issue public" feature is used.
`zproject/settings.py` itself is mostly-empty now. Adjust the
references which should now point to `zproject/computed_settings.py`
or `zproject/default_settings.py`.
Fixes#2665.
Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.
Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start. I expect this change will increase pressure for us to split
those files, which isn't a bad thing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Generated by pyupgrade --py36-plus --keep-percent-format, but with the
NamedTuple changes reverted (see commit
ba7906a3c6, #15132).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
datetime.timezone is available in Python ≥ 3.2. This also lets us
remove a pytz dependency from the PostgreSQL scripts.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Fixes#14595.
Invalid HTTP requests could end up in an unhandled exception in
skip_200_and_304 due the record not having the status_code attribute
set. With this change we'll avoid the exception
Example:
curl -X POST -H 'Transfer-Encoding : chunked' --data-binary 'a' 'http://zulipdev.com:9991/json/messages/57'
2020-04-21 10:56:22.007 WARN [django.server] "POST /json/messages/57 HTTP/1.1" 405 95
2020-04-21 10:56:22.007 INFO [django.server] code 400, message Bad request syntax ('a')
2020-04-21 10:56:22.008 WARN [django.server] "a" 400 -
The comment explains this issue, but effectively, the upgrade to
Django 2.x means that Django's built-in django.request logger was
writing to our errors logs WARNING-level data for every 404 and 400
error. We don't consider user errors to be a problem worth
highlighting in that log file.
We have a very useful piece of code, _RateLimitFilter, which is
designed to avoid sending us a billion error emails in the event that
a Zulip production server is down in a way that throws the same
exception a lot. The code uses memcached to ensure we send each
traceback roughly once per Zulip server per 10 minutes (or if
memcached is unavailable, at most 1/process/10 minutes, since we use
memcached to coordinate between processes)
However, if memcached is down, there is a logging.error call internal
to the Django/memcached setup that happens inside the cache.set() call,
and those aren't caught by the `except Exception` block around it.
This ends up resulting in infinite recursion, eventually leading to
Fatal Python error: Cannot recover from stack overflow., since this
handler is configured to run for logging.error in addition to
logging.exception.
We fix this using a thread-local variable to detect whether we are
being called recursively.
This change should prevent some nasty failure modes we've had in the
past where memcached being down resulted in infinite recursion
(resulting in extra resources being consumed by our error
notifications code, and most importantly, the error notifications not
being sent).
Fixes#12595.
The name `create_logger` suggests something much bigger than what this
function actually does -- the logger doesn't any more or less exist
after the function is called than before. Its one real function is to
send logs to a specific file.
So, pull out that logic to an appropriately-named function just for
it. We already use `logging.getLogger` in a number of places to
simply get a logger by name, and the old `create_logger` callsites can
do the same.
From the docs:
> This function does nothing if the root logger already has handlers
> configured for it.
Which we do if we've started up Django and configured settings, and in
particular allowed Django to process `settings.LOGGING`.
So, cut it out -- all it can do is confuse people about how logging
works.
If we ever actually used the `log_format` parameter, this would be
doubly confused, because only the first call would have any effect.
Because calls to `create_logger` generally run after settings are
configured, these would override what we have in `settings.LOGGING` --
which in particular defeated any attempt to set log levels in
`test_settings.py`. Move all of these settings to the same place in
`settings.py`, so they can be overridden in a uniform way.
This is already the loglevel we set on the root logger, so this has no
effect -- except in tests, where `test_settings.py` attempts to set
some of these same loggers to higher loglevels. Because the
`create_logger` call generally runs after we've configured settings,
it clobbers that effect.
The code in `test_settings.py` that tries to suppress logs only works
because it also sets `propagate=False`, which has nothing to do with
loglevels but does cause logs at this logger (and descendants) to be
dropped completely unless we've configured handlers for this logger
(or one of its relevant descendants.)
These are long enough to still be self-explanatory (the only one I'm
at all in doubt about there is DEBG; I avoided "DBUG" because it reads
"BUG" which suggests a high-priority message, and those are the
opposite of that), while saving a good bit of horizontal space
vs. padding everything to the 8 characters of "CRITICAL".
Also add a linter exception to allow easy-to-read alignment here,
similar to several existing exceptions for other alignment cases.
Anders Kaseorg
Zixuan James Li
BIKI DAS
PIG208
Alex Vandiver
Mateusz Mandera
Anders Kaseorg
Tim Abbott
Greg Price
rht
Steve Howell