TOR users are legitimate users of the system; however, that system can
also be used for abuse -- specifically, by evading IP-based
rate-limiting.
For the purposes of IP-based rate-limiting, add a
RATE_LIMIT_TOR_TOGETHER flag, defaulting to false, which lumps all
requests from TOR exit nodes into the same bucket. This may allow a
TOR user to deny other TOR users access to the find-my-account and
new-realm endpoints, but this is a low cost for cutting off a
significant potential abuse vector.
If enabled, the list of TOR exit nodes is fetched from their public
endpoint once per hour, via a cron job, and cached on disk. Django
processes load this data from disk, and cache it in memcached.
Requests are spared from the burden of checking disk on failure via a
circuitbreaker, which trips of there are two failures in a row, and
only begins trying again after 10 minutes.
In #20012, it was discovered that since our `zulip_bots` package
requires `importlib-metadata >= 3.6; python_version < "3.10"`
whereas the server requires
`importlib-metadata==4.8.1 ; python_version < "3.8". This results
in `importlib-metadata` not being installed on Python 3.8 and
Python 3.9. This commit resolves that discrepancy.
Thanks to Anders Kaseorg (@andersk) for reporting this bug!
This commit adds django-cte as dependency
which will be used for querying recursive
group membership.
Extracted this commit from #19866.
Co-authored-by: Anders Kaseorg <anders@zulip.com>
re2[1] compiles (strictly) regular expressions to deterministic finite
automata, which guarantees linear-time behavior; `google-re2` is a
drop-in replacement for the `re` module which uses re2 under the hood.
[1]: https://github.com/google/re2/
Till now, we've been forking django-auth-ldap at
https://github.com/zulip/django-auth-ldap to put the
LDAPReverseEmailSearch feature in it, hoping to get it merged
upstream in https://github.com/django-auth-ldap/django-auth-ldap/pull/150
The efforts to get it merged have stalled for now however and we don't
want to be on the fork forever, so this commit puts the email search
feature as a clumsy workaround inside our codebase and switches to using
the latest upstream release instead of the fork.
Thumbor and tc-aws have been dragging their feet on Python 3 support
for years, and even the alphas and unofficial forks we’ve been running
don’t seem to be maintained anymore. Depending on these projects is
no longer viable for us.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This is a straightforward upgrade in terms of changes needed.
Necessary changes were:
- Set `DEFAULT_AUTO_FIELD`
https://docs.djangoproject.com/en/3.2/releases/3.2/#customizing-type-of-auto-created-primary-keys
- `The default_app_config application configuration variable is deprecated, due
to the now automatic AppConfig discovery.`
https://docs.djangoproject.com/en/3.2/releases/3.2/#automatic-appconfig-discovery
To handle this one, we can remove default_app_config from
zerver/__init__.py because it satisfies what release notes describe in
https://docs.djangoproject.com/en/3.2/releases/3.2/#automatic-appconfig-discovery:
"Most pluggable applications define an AppConfig subclass in an apps.py
submodule. Many define a default_app_config variable pointing to this
class in their __init__.py. When the apps.py submodule exists and
defines a single AppConfig subclass, Django now uses that configuration
automatically, so you can remove default_app_config."
An important note is that rebuild-test-database needs to be run after
this upgrade in dev environment - if tests are run with test db that was
built on the previous version, they will fail due to a mysterious bug
(?), where changing attributes of a user and .save()ing after logging in
in the test via self.login_user, causes getting logged out - the next
requests via self.client_get etc. are unauthed for some reason,
unless self.login_user is called again. This behavior is no longer
exhibited upon rebuilding the test db - and I can't reproduce it in
production or dev db. So this can likely be reasonably dismissed as some
quirk of the test client system that won't be relevant in the future and
doesn't impact production.
Previously the outgoing emails were sent over several SMTP
connections through the EmailSendingWorker; establishing a new
connection each time adds notable overhead.
Redefine EmailSendingWorker worker to be a LoopQueueProcessingWorker,
which allows it to handle batches of events. At the same time, persist
the connection across email sending, if possible.
The connection is initialized in the constructor of the worker
in order to keep the same connection throughout the whole process.
The concrete implementation of the consume_batch function is simply
processing each email one at a time until they have all been sent.
In order to reuse the previously implemented decorator to retry
sending failures a new method that meets the decorator's required
arguments is declared inside the EmailSendingWorker class. This
allows to retry the sending process of a particular email inside
the batch if the caught exception leaves this process retriable.
A second retry mechanism is used inside the initialize_connection
function to redo the opening of the connection until it works or
until three attempts failed. For this purpose the backoff module
has been added to the dependencies and a test has been added to
ensure that this retry mechanism works well.
The connection is closed when the stop method is called.
Fixes: #17672.
It does not seem like an official version supporting Webpack 4 (to say
nothing of 5) will be released any time soon, and we can reimplement
it in very little code.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
ipython < 7.20.0 is incompatible with jedi >= 0.18.0; it fails to
tab-complete in `./manage.py shell`, as described in
ipython/ipython#12740.
We cannot bump the ipython dependency because ipython 7.20.0 requires
Python 3.7, and we must support Python 3.6 due to Ubuntu 18.04
support. Our only solution is thus to cap the version of `jedi` to
the last one before its API changed.
https://docs.djangoproject.com/en/3.1/releases/3.1/
- django.contrib.postgres.fields.JSONField is deprecated and should be
replaced with models.JSONField
- The internals of the implementation in the postgresql backend have
changed a bit in
f48f671223
and thus we need to make an ugly tweak in test_runner.
- app_directories.Loader.get_dirs() now returns a list of PosixPath so
we need to make a small tweak in TwoFactorLoader for that (PosixPath
is not iterable)
Fixes#16010.
Adjustments made due to changes in Django 3.0:
(https://docs.djangoproject.com/en/3.0/releases/3.0/)
- test_signup: INTERNAL_RESET_URL_TOKEN was moved to
PasswordResetConfirmView.reset_url_token
- test_message_fetch:
"add_never_cache_headers() and never_cache() now add the private
directive to Cache-Control headers."
- "django.utils.html.escape() now uses html.escape() to escape HTML.
This converts ' to ' instead of the previous equivalent decimal
code '." - this requires adjusting the expected decimal code
in some of the string fixtures in tests.
Right now the list of languages in Display settings → Default language
is sorted in an unintuitive order due to the varying case conventions:
British English
Chinese (Taiwan)
Deutsch
English
Hindi
Indonesian (Indonesia)
Lietuviškai
Magyar
Malayalam
Nederlands
Português
Română
Tiếng Việt
Türkçe
català
español
français
galego
italiano
polski
suomi
svenska
česky
Русский
Українська
български
српски
فارسی
தமிழ்
日本語
简体中文
繁體中文
한국어
Fix the sort to use the locale-independent Unicode Collation
Algorithm:
British English
català
česky
Chinese (Taiwan)
Deutsch
English
español
français
galego
Hindi
Indonesian (Indonesia)
italiano
Lietuviškai
Magyar
Malayalam
Nederlands
polski
Português
Română
suomi
svenska
Tiếng Việt
Türkçe
български
Русский
српски
Українська
فارسی
தமிழ்
한국어
日本語
简体中文
繁體中文
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Upstream has slightly changed the whitespace around stashes. Take
this opportunity to clean up the extra blank lines we were outputting.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
As explained in the previous commit, yamole preprocessed allOf with an
algorithm that is not standards compliant. We replicate that
algorithm, but importantly, we only use it for our own code and not
for building the openapi_core RequestValidator.
This improves the time taken by OpenAPISpec().check_reload() from
1.69s to 0.53s, nearly all of which is inside
openapi_core.create_spec.
Closes#10484. Significantly improves #16068.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Alex Vandiver
Anders Kaseorg
Eeshan Garg
Eeshan Garg
Tim Abbott
Mateusz Mandera
Sahil Batra
Priyansh Garg
Cyril Pletinckx
Aman Agrawal