Commit Graph

84 Commits

Author SHA1 Message Date
Sahil Batra 61365fbe21 invites: Use expiration time in minutes instead of days.
This commit changes the invite API to accept invitation
expiration time in minutes since we are going to add a
custom option in further commits which would allow a user
to set expiration time in minutes, hours and weeks as well.
2022-04-20 13:31:37 -07:00
Alex Vandiver 56058f3316 caches: Remove unnecessary "in-memory" cache.
This cache was added in da33b72848 to serve as a replacement for the
durable database cache, in development; the previous commit has
switched that to be the non-durable memcached backend.

The special-case for "in-memory" in development is mostly-unnecessary
in contrast to memcached -- `./tools/run-dev.py` flushes memcached on
every startup.  This differs in behaviour slightly, in that if the
codepath is changed and `run-dev` restarts Django, the cache is not
cleared.  This seems an unlikely occurrence, however, and the code
cleanup from its removal is worth it.
2022-04-15 14:48:12 -07:00
Alex Vandiver 1d70ba9a35 computed_settings: Clarify the user login rate-limit is only on failures. 2022-04-11 16:25:32 -07:00
Alex Vandiver 828c9d1c18 settings: Use default database_user value when looking up.
Failure to pull the default "zulip" value here can lead to
accidentally applying a `postgres_password` value which is unnecessary
and may never work.

For consistency, always skip password auth attempts for the "zulip"
user on localhost, even if the password is set.  This mirrors the
behavior of `process_fts_updates`.
2022-04-11 16:14:48 -07:00
Aman Agrawal b799ec32b0 upload: Allow rate limited access to spectators for uploaded files.
We allow spectators access to uploaded files in web public streams
but rate limit the daily requests to 1000 per file by default.
2022-03-24 10:50:00 -07:00
Alex Vandiver 7650b5a972 session: Enforce that changes cannot happen in a transaction. 2022-03-15 13:52:15 -07:00
Anders Kaseorg 21cd1c10b3 docs: Add missing space in “time zone”.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-02-24 14:05:12 -08:00
Anders Kaseorg 5bb8520c82 computed_settings: Remove deprecated Jinja2 autoescape extension.
It’s built in to Jinja2 as of 2.9.  Fixes “DeprecationWarning: The
'autoescape' extension is deprecated and will be removed in Jinja
3.1. This is built in now.”

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-01-13 21:03:00 -08:00
Eeshan Garg 2393342e03 webhooks/jira: Handle anomalous payloads properly.
We recently ran into a payload in production that didn't contain
an event type at all. A payload where we can't figure out the event
type is quite rare. Instead of letting these payloads run amok, we
should raise a more informative exception for such unusual payloads.
If we encounter too many of these, then we can choose to conduct a
deeper investigation on a case-by-case basis.

With some changes by Tim Abbott.
2021-12-28 10:56:25 -08:00
Mateusz Mandera 158287f998 saml: Set wantMessagesSigned to True only for processing LogoutRequests.
Having wantMessagesSigned=True globally means that it's also applied by
python3-saml to regular authentication SAMLResponses - making it require
the response to be signed, which is an issue because a feasible
alternative way that some IdPs (e.g. AzureAD) take by default is to sign
specifically the assertions in the SAMLResponse. This is also secure,
and thus we generally want to accept it.

Without this, the setting of wantMessagesSigned=True globally
in 4105ccdb17 causes a
regression for deployments that have already set up SAML with providers
such as AzureAD, making Zulip stop accepting the SAMLResponses.

Testing that this new logic works is handled by
test_saml_idp_initiated_logout_invalid_signature, which verifies that a
LogoutRequest without signature will be rejected.
2021-12-06 11:01:00 -08:00
Anders Kaseorg d3dab39b87 Revert "settings: Silence CryptographyDeprecationWarning spam from a dependency."
The warning was fixed in python-jose 3.3.0, which we pulled in with
commit 61e1e38a00 (#18705).

This reverts commit 1df725e6f1 (#18567).

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-11-29 16:04:53 -08:00
Alex Vandiver 49ad188449 rate_limit: Add a flag to lump all TOR exit node IPs together.
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.
2021-11-16 11:42:00 -08:00
YashRE42 778b7c0bdb links: Replace all references to Django docs to link to /3.2/ version.
Previously, our codebase contained links to various versions of the
Django docs, eg https://docs.djangoproject.com/en/1.8/ref/
request-response/#django.http.HttpRequest and https://
docs.djangoproject.com/en/2.2/ref/settings/#std:setting-SERVER_EMAIL
opening a link to a doc with an outdated Django version would show a
warning "This document is for an insecure version of Django that is no
longer supported. Please upgrade to a newer release!".

Most of these links are inside comments.

Following the replacement of these links in our docs, this commit uses
a search with the regex "docs.djangoproject.com/en/([0-9].[0-9]*)/"
and replaces all matches with "docs.djangoproject.com/en/3.2/".

All the new links in this commit have been generated by the above
replace and each link has then been manually checked to ensure that
(1) the page still exists and has not been moved to a new location
(and it has been found that no page has been moved like this), (2)
that the anchor that we're linking to has not been changed (and it has
been found that no anchor has been changed like this).

One comment where we mentioned a Django version in text before linking
to a page for that version has also been changed, the comment
mentioned the specific version when a change happened, and the history
is no longer relevant to us.
2021-11-08 18:06:16 -08:00
Alex Vandiver 90fc811b54 settings: Limit non-logged-in email-sending to 5/day, not per 30 min.
This more closely matches email_change_by_user and
password_reset_form_by_email limits; legitimate users are unlikely to
need to send more than 5 emails to themselves during a day.
2021-11-05 15:58:05 -07:00
Tim Abbott 1cad29fc3a settings: Add rate limiting for email address changes.
Co-authored-by: Alex Vandiver <alexmv@zulip.com>
2021-11-04 20:34:39 -07:00
Alex Vandiver 0cfb156545 rate_limit: Merge two IP rate limits domains that send emails.
Both `create_realm_by_ip` and `find_account_by_ip` send emails to
arbitrary email addresses, and as such can be used to spam users.
Lump their IP rate limits into the same bucket; most legitimate users
will likely not be using both of these endpoints at similar times.

The rate is set at 5 in 30 minutes, the more quickly-restrictive of
the two previous rates.
2021-11-04 20:34:39 -07:00
Mateusz Mandera 4105ccdb17 saml: Implement IdP-initated logout for Keycloak.
Fixes #13948.
2021-10-27 13:13:55 -07:00
rht bb8504d925 lint: Fix typos found by codespell. 2021-10-19 16:51:13 -07:00
Mateusz Mandera 73a6f2a1a7 auth: Add support for using SCIM for account management. 2021-10-14 12:29:10 -07:00
Mateusz Mandera fb3864ea3c auth: Change the look of SOCIAL_AUTH_SUBDOMAIN when directly opened.
SOCIAL_AUTH_SUBDOMAIN was potentially very confusing when opened by a
user, as it had various Login/Signup buttons as if there was a realm on
it. Instead, we want to display a more informative page to the user
telling them they shouldn't even be there. If possible, we just redirect
them to the realm they most likely came from.
To make this possible, we have to exclude the subdomain from
ROOT_SUBDOMAIN_ALIASES - so that we can give it special behavior.
2021-09-10 10:47:15 -07:00
PIG208 c16803625c settings: Remove ANONYMOUS_USER_ID.
This finishes up #5498 removing the forgotten variable added when we
introduced the later removed django-guardian.
2021-08-20 05:54:19 -07:00
PIG208 2268ac6d0c zproject: Fix typing errors under the zproject directory.
This fixes error found with django-stubs and it is a part of #18777.

Note that there are various remaining errors that need to be fixed in
upstream or elsewhere in our codebase.
2021-08-20 05:54:19 -07:00
Mateusz Mandera ddcfd9e2ee rate_limit: Rate limit the /accounts/find/ endpoint.
Closes #19287

This endpoint allows submitting multiple addresses so we need to "weigh"
the rate limit more heavily the more emails are submitted. Clearly e.g.
a request triggering emails to 2 addresses should weigh twice as much as
a request doing that for just 1 address.
2021-08-06 12:17:44 +02:00
Mateusz Mandera 1c64bed8e4 rate_limiter: Rate limit the /new/ endpoint. 2021-07-24 15:52:06 -07:00
Alex Vandiver 928dc4bafd sentry: Set environment from `machine.deploy_type` config.
This allows for greater flexibility in values for "environment," and
avoids having to have duplicate definitions of STAGING in
`zproject/config.py` and `zproject/default_settings.py` (due to import
order restrictions).

It does overload the "deploy type" concept somewhat.

Follow-up to #19185.
2021-07-15 15:01:43 -07:00
Mateusz Mandera 85cbdc8904 rate_limit: Add rate limiting of ZulipRemoteServer. 2021-07-08 15:55:02 -07:00
Mateusz Mandera b9056d193d rate_limit: Implement IP-based rate limiting.
If the user is logged in, we'll stick to rate limiting by the
UserProfile. In case of requests without authentication, we'll apply the
same limits but to the IP address.
2021-07-08 15:46:52 -07:00
Gaurav Pandey 9b696cf212 api: Expose event_queue_longpoll_timeout_seconds in /register.
Rename poll_timeout to event_queue_longpoll_timeout_seconds
and change its value from 90000 ms to 90 sec. Expose its
value in register api response when realm data is fetched.
Bump API_FEATURE_LEVEL to 74.
2021-06-05 07:37:19 -07:00
Alex Vandiver 54c222d3f8 settings: Support arbitrary database user and dbname.
This adds basic support for `postgresql.database_user` and
`postgresql.database_name` settings in `zulip.conf`; the defaults if
unspecified are left as `zulip`.

Co-authored-by: Adam Birds <adam.birds@adbwebdesigns.co.uk>
2021-05-25 13:46:58 -07:00
Mateusz Mandera 1df725e6f1 settings: Silence CryptographyDeprecationWarning spam from a dependency. 2021-05-23 13:31:55 -07:00
Alex Vandiver 82797dd53c settings: Standardize the name of the deliver_scheduled_messages logs.
This makes it match its command name, and other logfile name.
2021-05-18 12:39:28 -07:00
Alex Vandiver 0f1611286d management: Rename the deliver_email command to deliver_scheduled_email.
This makes it parallel with deliver_scheduled_messages, and clarifies
that it is not used for simply sending outgoing emails (e.g. the
`email_senders` queue).

This also renames the supervisor job to match.
2021-05-11 13:07:29 -07:00
Anders Kaseorg 405bc8dabf requirements: Remove Thumbor.
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>
2021-05-06 20:07:32 -07:00
Mateusz Mandera 1d9fb4f988 django: Upgrade Zulip to Django 3.2 LTS.
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.
2021-05-03 08:36:22 -07:00
Anders Kaseorg 738532ba51 requirements: Remove django-webpack-loader.
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>
2021-04-06 09:31:35 -07:00
Alex Vandiver 07779ea879 middleware: Do not trust X-Forwarded-For; use X-Real-Ip, set from nginx.
The `X-Forwarded-For` header is a list of proxies' IP addresses; each
proxy appends the remote address of the host it received its request
from to the list, as it passes the request down.  A naïve parsing, as
SetRemoteAddrFromForwardedFor did, would thus interpret the first
address in the list as the client's IP.

However, clients can pass in arbitrary `X-Forwarded-For` headers,
which would allow them to spoof their IP address.  `nginx`'s behavior
is to treat the addresses as untrusted unless they match an allowlist
of known proxies.  By setting `real_ip_recursive on`, it also allows
this behavior to be applied repeatedly, moving from right to left down
the `X-Forwarded-For` list, stopping at the right-most that is
untrusted.

Rather than re-implement this logic in Django, pass the first
untrusted value that `nginx` computer down into Django via `X-Real-Ip`
header.  This allows consistent IP addresses in logs between `nginx`
and Django.

Proxied calls into Tornado (which don't use UWSGI) already passed this
header, as Tornado logging respects it.
2021-03-31 14:19:38 -07:00
Anders Kaseorg fdefc4275a computed_settings: Remove unused TUTORIAL_ENABLED setting.
It’s unused as of commit 88bec16452
(#6621).

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-03-30 14:44:09 -07:00
Mateusz Mandera f329878376 migrations: Subscription.is_user_active denormalization - step one.
This adds the is_user_active with the appropriate code for setting the
value correctly in the future. In the following commit a migration to
backfill the value for existing Subscriptions will be added.

To ensure correct user_profile.is_active handling also in tests, we
replace all direct .is_active mutation with calls to appropriate
functions.
2021-03-30 09:19:03 -07:00
Nikhil Maske 6b34ba048d docs: Add a note in Incoming email integration docs.
The note states the incoming emails are rate-limited and
its current limits.

Fixes #17435.
2021-03-08 12:23:10 -08:00
Anders Kaseorg 6e4c3e41dc python: Normalize quotes with Black.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Anders Kaseorg 11741543da python: Reformat with Black, except quotes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Vishnu KS 7d8ade3b2a dev_settings: Allow setting the value of EMAIL_USE_TLS from dev-secrets. 2021-01-29 14:51:38 -08:00
Mateusz Mandera 1432067959 dependencies: Upgrade to Django 3.1.
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.
2021-01-26 10:20:00 -08:00
Alex Vandiver c2526844e9 worker: Remove SignupWorker and friends.
ZULIP_FRIENDS_LIST_ID and MAILCHIMP_API_KEY are not currently used in
production.

This removes the unused 'signups' queue and worker.
2021-01-17 11:16:35 -08:00
Vishnu KS 7a6285ede7 email testing: Store the SMTP settings in dev-secrets.
It's super annoying to set this up each time I have to test
email templates in gmail.
2020-10-30 11:50:30 -07:00
ryanreh99 dfa7ce5637 uploads: Support non-AWS S3-compatible server.
Boto3 does not allow setting the endpoint url from
the config file. Thus we create a django setting
variable (`S3_ENDPOINT_URL`) which is passed to
service clients and resources of `boto3.Session`.

We also update the uploads-backend documentation
and remove the config environment variable as now
AWS supports the SIGv4 signature format by default.
And the region name is passed as a parameter instead
of creating a config file for just this value.

Fixes #16246.
2020-10-28 21:59:07 -07:00
Alex Vandiver 5eb8064a1a install: Rename postgres options to postgresql. 2020-10-28 11:55:32 -07:00
Alex Vandiver 1f7132f50d docs: Standardize on PostgreSQL, not Postgres. 2020-10-28 11:55:16 -07:00
Alex Vandiver 1d54630b4e log: Rename email-deliverer.log to match other files. 2020-10-25 14:56:37 -07:00
Anders Kaseorg 72d6ff3c3b docs: Fix more capitalization issues.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-23 11:46:55 -07:00