Commit Graph

2446 Commits

Author SHA1 Message Date
Anders Kaseorg b285813beb error_notify: Remove custom email error reporting handler.
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>
2023-07-20 11:00:09 -07:00
Alex Vandiver d957559371 uploads: Allow uploads to set storage class.
Uploads are well-positioned to use S3's "intelligent tiering" storage
class.  Add a setting to let uploaded files to declare their desired
storage class at upload time, and document how to move existing files
to the same storage class.
2023-07-19 16:19:34 -07:00
Anders Kaseorg 63be67af80 logging_util: Remove dependence on get_current_request.
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>
2023-07-11 22:23:47 -07:00
Anders Kaseorg f66e2c3112 sentry: Remove dependence on get_current_request.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-07-11 22:23:47 -07:00
Lauryn Menard dd59e83d54 welcome-emails: Make some code comments and docstrings more evergreen. 2023-07-11 14:15:52 -07:00
Alex Vandiver 8a77cca341 middleware: Detect reverse proxy misconfigurations.
Combine nginx and Django middlware to stop putting misleading warnings
about `CSRF_TRUSTED_ORIGINS` when the issue is untrusted proxies.
This attempts to, in the error logs, diagnose and suggest next steps
to fix common proxy misconfigurations.

See also #24599 and zulip/docker-zulip#403.
2023-07-02 16:20:21 -07:00
Alex Vandiver cf0b803d50 zproject: Prevent having exactly 17/18 middlewares, for Python 3.11 bug.
Having exactly 17 or 18 middlewares, on Python 3.11.0 and above,
causes python to segfault when running tests with coverage; see
https://github.com/python/cpython/issues/106092

Work around this by adding one or two no-op middlewares if we would
hit those unlucky numbers.  We only add them in testing, since
coverage is a requirement to trigger it, and there is no reason to
burden production with additional wrapping.
2023-07-02 16:20:21 -07:00
Lalit a686c0cc02 docs: Add documentation for delete emoji endpoint.
This endpoint was previously marked as `intentionally_undocumented`
but that was mistake.

Removed `intentionally_undocumented` and added proper documentation
with valid `python_example` for this Endpoint.

Fixes: #24084
2023-06-28 10:23:47 -07:00
Alex Vandiver 76d7a5a53a dev_settings: Remove `THUMBNAIL_IMAGES` from test_extra_settings.
THUMBNAIL_IMAGES was previously set to true as there were tests on a new
thumbnail functionality. The feature was never stable enough to remain in
the codebase and the setting was left enabled. This setting also doesn't
reflect how the production deployments are and it has been decided that we
should drop setting from test_extra_settings altogether.

Co-authored-by: Joseph Ho <josephho678@gmail.com>
2023-06-12 16:26:55 -07:00
Alex Vandiver fbb831ff3b uploads: Allow access to the /download/ variant anonymously.
This was mistakenly left off of b799ec32b0.
2023-06-12 12:55:27 -07:00
Alex Vandiver 0dbe111ab3 test_helpers: Switch add/remove_ratelimit to a contextmanager.
Failing to remove all of the rules which were added causes action at a
distance with other tests.  The two methods were also only used by
test code, making their existence in zerver.lib.rate_limiter clearly
misplaced.

This fixes one instance of a mis-balanced add/remove, which caused
tests to start failing if run non-parallel and one more anonymous
request was added within a rate-limit-enabled block.
2023-06-12 12:55:27 -07:00
evykassirer aa270bcef0 search: Remove support for experimental search pills.
This in-progress feature was started in 2018 and hasn't
been worked on much since. It's already in a broken state,
which makes it hard to iterate on the existing search bar
since it's hard to know how those changes will affect search
pills.

We do still want to add search pills eventually, and when
we work on that, we can refer to this diff to readd the
changes back.
2023-06-06 18:36:02 -07:00
Anders Kaseorg b7909db987 ruff: Fix PLC0208 Use a sequence type when iterating over values.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-06-06 14:58:11 -07:00
Alex Vandiver cdc94d2719 prod_settings_template: Document REALM_HOSTS configuration.
This was in docs/production/multiple-organizations.md, but not the
settings template.
2023-06-06 09:17:42 -07:00
Anders Kaseorg b5e5728112 coverage: Clean up coverage configuration.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-05-31 13:53:04 -07:00
Lauryn Menard 957382253a scheduled-messages: Split out edit scheduled message endpoint.
Part of splitting creating and editing scheduled messages.
Should be merged with final commit in series. Breaks tests.

Splits out editing an existing scheduled message into a new
view function and updated `edit_scheduled_message` function.
2023-05-26 18:05:55 -07:00
Mateusz Mandera 45e3626bd2 saml: Clean up additional session vars if authentication fails.
This doesn't have any obvious security implications right now, but
nonetheless such information is not meant to stick around in the session
if authentication didn't succeed and not cleaning up would be a bug.
2023-05-23 13:01:15 -07:00
Mateusz Mandera c9fb55dd20 saml: Improve the comments about the SAMLDocument processing logic. 2023-05-23 13:01:15 -07:00
Mateusz Mandera 8fb0fe96c6 saml: Save SessionIndex in session and use when making a LogoutRequest.
This is a useful improvement in general for making correct
LogoutRequests to Idps and a necessary one to make SP-initiated logout
fully work properly in the desktop application. During desktop auth
flow, the user goes through the browser, where they log in through their
IdP. This gives them a logged in  browser session at the IdP. However,
SAML SP-initiated logout is fully conducted within the desktop
application. This means that proper information needs to be given to the
the IdP in the LogoutRequest to let it associate the LogoutRequest with
that logged in session that was established in the browser. SessionIndex
is exactly the tool for that in the SAML spec.
2023-05-23 13:01:15 -07:00
Mateusz Mandera 5dd4dcdebb saml: Make SP-initiated SLO work in the desktop application. 2023-05-23 13:01:15 -07:00
Mateusz Mandera 3f55c10685 saml: Rework SP-initiated logout config to support IdP-level config.
This gives more flexibility on a server with multiple organizations and
SAML IdPs. Such a server can have some organizations handled by IdPs
with SLO set up, and some without it set up. In such a scenario, having
a generic True/False server-wide setting is insufficient and instead
being able to specify the IdPs/orgs for SLO is needed.
2023-05-23 13:01:15 -07:00
Mateusz Mandera e8f3b87b17 saml: Sign LogoutRequests and LogoutResponses if certs are set up. 2023-05-23 13:01:15 -07:00
Mateusz Mandera 0bb0220ebb saml: Implement SP-initiated Logout.
Closes #20084

This is the flow that this implements:
1. A logged-in user clicks "Logout".
2. If they didn't auth via SAML, just do normal logout. Otherwise:
3. Form a LogoutRequest and redirect the user to
https://idp.example.com/slo-endpoint?SAMLRequest=<LogoutRequest here>
4. The IdP validates the LogoutRequest, terminates its own user session
and redirects the user to
https://thezuliporg.example.com/complete/saml/?SAMLRequest=<LogoutResponse>
with the appropriate LogoutResponse. In case of failure, the
LogoutResponse is expected to express that.
5. Zulip validates the LogoutResponse and if the response is a success
response, it executes the regular Zulip logout and the full flow is
finished.
2023-05-23 13:01:15 -07:00
Mateusz Mandera 01498add9b auth: Rename authentication_method session var. 2023-05-23 13:01:15 -07:00
Sahil Batra 7f01b3fb63 users: Set tos_version to -1 for users who have not logged-in yet.
We now set tos_version to "-1" for imported users and the ones
created using API or using other methods like LDAP, SCIM and
management commands. This value will help us to allow users to
change email address visibility setting during first login.
2023-05-16 13:52:56 -07:00
Mateusz Mandera 254ea4b0c8 social_auth: Save authentication method information in the session.
The immediate application of this will be for SAML SP-initiated logout,
where information about which IdP was used for authenticating the
session needs to be accessed. Aside of that, this seems like generally
valuable session information to keep that other features may benefit
from in the future.
2023-05-12 16:21:26 -07:00
Anders Kaseorg e88b2caeef Revert "db: Force use of TimeTrackingCursor to work around Django 4.2 bug."
This reverts commit f1925487e8.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-05-10 19:44:47 -07:00
Alex Vandiver 1285c39098 zerver: Remove now-unused report/ endpoints. 2023-05-09 13:16:28 -07:00
Aman Agrawal d60d6e9115 urls: Add new endpoint to create scheduled messages.
This will help us remove scheduled message and reminder logic
from `/messages` code path.

Removes `deliver_at`/`defer_until` and `tz_guess` parameters. And
adds the `scheduled_delivery_timestamp` instead. Also updates the
scheduled message dicts to return `scheduled_delivery_timestamp`.

Also, revises some text in `/delete-scheduled-message` endpoint
and in the `ScheduledMessage` schema in the API documentation.
2023-04-28 17:25:00 -07:00
AcKindle3 4544eb4576 email: Replace `uri` with `url` in templates and backend.
In #23380 we want to change all ocurrences of `uri` to `url`. This
commit changes the ocurrences of `uri` appeared in files related to
email, including templates (`.html`, `.txt`) and backend (`.py`)
codes.

In `email.md`, `base_images_uri` is changed to `images_base_url` -
the words `base` and `images` are swapped and plural form is added
for `image`.  This is becasue the former is not found anywhere in
the codebase while the later appears a lot. To reduce confusion,
this doccumentation changed accordingly.
2023-04-26 16:37:16 -07:00
Tim Abbott 027b67be80 presence: Rewrite the backend data model.
This implements the core of the rewrite described in:

For the backend data model for UserPresence to one that supports much
more efficient queries and is more correct around handling of multiple
clients.  The main loss of functionality is that we no longer track
which Client sent presence data (so we will no longer be able to say
using UserPresence "the user was last online on their desktop 15
minutes ago, but was online with their phone 3 minutes ago").  If we
consider that information important for the occasional investigation
query, we have can construct that answer data via UserActivity
already.  It's not worth making Presence much more expensive/complex
to support it.

For slim_presence clients, this sends the same data format we sent
before, albeit with less complexity involved in constructing it.  Note
that we at present will always send both last_active_time and
last_connected_time; we may revisit that in the future.

This commit doesn't include the finalizing migration, which drops the
UserPresenceOld table.
The way to deploy is to start the backfill migration with the server
down and then start the server *without* the user_presence queue worker,
to let the migration finish without having new data interfering with it.
Once the migration is done, the queue worker can be started, leading to
the presence data catching up to the current state as the queue worker
goes over the queued up events and updating the UserPresence table.

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2023-04-26 14:26:47 -07:00
Anders Kaseorg 9db3451333 Remove statsd support.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-04-25 19:58:16 -07:00
Ruchir Harbhajanka e08256ce88 urls: Move jwt_fetch_api_key endpoint to v1_api_mobile_patterns.
Moves jwt_fetch_api_key endpoint to v1_api_mobile_patterns so
that tools/test-api detects it as an API endpoint that is pending
documentation.

Fixes #24982.
2023-04-18 15:44:31 -07:00
Mateusz Mandera eb4fc7568c auth_enabled_helper: Add realm_authentication_methods argument.
This allows removing pointless db queries when calling
*_auth_enabled(realm) repeatedly.
2023-04-18 09:22:56 -07:00
Mateusz Mandera 72d56d5d59 auth: Remove Realm.AUTHENTICATION_FLAGS class attribute.
With the removal of the authentication_methods bitfield this is now
useless and just duplicates AUTH_BACKEND_NAME_MAP keys.
2023-04-18 09:22:56 -07:00
Mateusz Mandera ffa3aa8487 auth: Rewrite data model for tracking enabled auth backends.
So far, we've used the BitField .authentication_methods on Realm
for tracking which backends are enabled for an organization. This
however made it a pain to add new backends (requiring altering the
column and a migration - particularly troublesome if someone wanted to
create their own custom auth backend for their server).

Instead this will be tracked through the existence of the appropriate
rows in the RealmAuthenticationMethods table.
2023-04-18 09:22:56 -07:00
Aman Agrawal a06f3d26d0 scheduled_messages: Add endpoints to fetch and delete them. 2023-04-14 17:38:37 -07:00
Alex Vandiver d888bb3df2 error-bot: Remove ERROR_BOT support.
This isn't sufficiently useful to keep the added complexity.  Users
should use the email error reporting, or set up Sentry error
reporting.
2023-04-13 14:59:58 -07:00
Alex Vandiver e536a14b61 report_error: Remove API endpoint for client error reporting. 2023-04-13 14:59:58 -07:00
Alex Vandiver cdaf12da44 jinja2: Make sure that 500 pages have support_email set. 2023-04-12 16:41:07 -07:00
Anders Kaseorg d2af06f4df middleware: Remove ZulipCommonMiddleware patch.
My fix for the relevant performance bug was upstreamed in Django 4.2.

https://code.djangoproject.com/ticket/33700

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-04-07 09:13:20 -07:00
Anders Kaseorg f1925487e8 db: Force use of TimeTrackingCursor to work around Django 4.2 bug.
Effectively revert commit b4cf9ad777 to
work around https://code.djangoproject.com/ticket/34466.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-04-06 17:58:44 -07:00
Prakhar Pratyush f012d079c3 user_topics: Add a new endpoint to update visibility_policy.
This commit adds a new endpoint, 'POST /user_topics' which
is used to update the personal preferences for a topic.

Currently, it is used to update the visibility policy of
a user-topic row.
2023-04-03 22:31:49 -07:00
Sahil Batra 791c3030eb backends: Update ZulipLDAPAuthBackend to use PreregistrationRealm.
This commit updates ZulipLDAPAuthBackend to use the recently added
PreregistrationRealm when creating realms with LDAP used as
authentication method.
2023-03-27 15:44:42 -07:00
Alex Vandiver 93bfd3fb5f sentry: Provide a server-side tunnel.
Some well-intentioned adblockers also block Sentry client-side error
reporting.  Provide an endpoint on the Zulip server which forwards to
the Sentry server, so that these requests are not blocked.
2023-03-24 15:16:38 -07:00
Anders Kaseorg 1db7f80f94 ruff: Fix PLW1508 Invalid type for environment variable default.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-03-24 11:57:07 -07:00
Alex Vandiver bf532de8bb queue: Allow enabling TLS for the RabbitMQ connection.
This allows using cloud-based RabbitMQ services like AmazonMQ.

Fixes: #24699.
2023-03-23 16:02:10 -07:00
Aman Agrawal c928c87645 google_analytics: Track realm registration separately from user signup.
While the function which processes the realm registration and
signup remains the same, we use different urls and functions to
call the process so that we can separately track them. This will
help us know the conversion rate of realm registration after
receiving the confirmation link.
2023-03-08 11:34:36 -08:00
Alex Vandiver 8f8a9f6f04 sentry: Add frontend event monitoring.
Zulip already has integrations for server-side Sentry integration;
however, it has historically used the Zulip-specific `blueslip`
library for monitoring browser-side errors.  However, the latter sends
errors to email, as well optionally to an internal `#errors` stream.
While this is sufficient for low volumes of users, and useful in that
it does not rely on outside services, at higher volumes it is very
difficult to do any analysis or filtering of the errors.  Client-side
errors are exceptionally noisy, with many false positives due to
browser extensions or similar, so determining real real errors from a
stream of un-grouped emails or messages in a stream is quite
difficult.

Add a client-side Javascript sentry integration.  To provide useful
backtraces, this requires extending the pre-deploy hooks to upload the
source-maps to Sentry.  Additional keys are added to the non-public
API of `page_params` to control the DSN, realm identifier, and sample
rates.
2023-03-07 10:51:45 -08:00
Alex Vandiver dcd8947c1b tests: Set LOCAL_AVATARS_DIR / LOCAL_FILES_DIR in tests.
7ad06473b6 split out `LOCAL_AVATARS_DIR` and `LOCAL_FILES_DIR` as
derived values from `LOCAL_UPLOADS_DIR`.  However, this means that all
places which set `LOCAL_UPLOADS_DIR` need to potentially propagate
that change into the derived values if they come *after*
`computed_settings.py` is applied.  It did this successfully in
`zerver/lib/test_runner.py` and the `use_s3_backend` decorator, but
did not adjust the late-set `zproject/test_extra_settings.py`.

This causes tests to share a single common set of avatars and
attachments directories.  In puppeteer tests, this leads to assertion
failures checking `assert_is_local_storage_path`; in backend tests,
this leads to races when checking the contents of the local storage
directory when run in parallel mode.

Set `LOCAL_AVATARS_DIR` and `LOCAL_FILES_DIR` based on
`LOCAL_UPLOADS_DIR` when it is pulled from the environment during
testing.
2023-03-06 11:52:23 -08:00
Anders Kaseorg 43b4f10578 run-dev: Drop .py from script name.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-03-03 18:02:37 -08:00
Alex Vandiver 015a10637b docs: Document how to use SMTP without authentication.
This is the behaviour inherited from Django[^1].  While setting the
password to empty (`email_password = `) in
`/etc/zulip/zulip-secrets.conf` also would suffice, it's unclear what
the user would have been putting into `EMAIL_HOST_USER` in that
context.

Because we previously did not warn when `email_password` was not
present in `zulip-secrets.conf`, having the error message clarify the
correct configuration for disabling SMTP auth is important.

Fixes: #23938.

[^1]: https://docs.djangoproject.com/en/4.1/ref/settings/#std-setting-EMAIL_HOST_USER
2023-02-27 11:59:48 -08:00
Mateusz Mandera 52515a1560 presence: Tweak and document presence tuning values.
We're changing the ping interval from 50s to 60s, because that's what
the mobile apps have hardcoded currently, and backwards-compatibility
is more important there than the web app's previously hardcoded 50s.

For PRESENCE_PING_INTERVAL_SECS, the previous value hardcoded in both
clients was 140s, selected as "plenty of network/other latency more
than 2 x ACTIVE_PING_INTERVAL_MS". This is a pretty aggressive value;
even a single request being missed or 500ing can result in a user
appearing offline incorrectly. (There's a lag of up to one full ping
interval between when the other client checks in and when you check
in, and so we'll be at almost 2 ping intervals when you issue your
next request that might get an updated connection time from that
user).

To increase failure tolerance, we want to change the offline
threshhold from 2 x ACTIVE_PING_INTERVAL + 20s to 3 x
ACTIVE_PING_INTERVAL + 20s, aka 140s => 200s, to be more robust to
temporary failures causing us to display other users as offline.

Since the mobile apps currently have 140s and 60s hardcoded, it should
be safe to make this particular change; the mobile apps will just
remain more aggressive than the web app in marking users offline until
it uses the new API parameters.

The end result in that Zulip will be slightly less aggressive at
marking other users as offline if they go off the Internet. We will
likely be able to tune ACTIVE_PING_INTERVAL downwards once #16381 and
its follow-ups are completed, because it'll likely make these requests
much cheaper.
2023-02-21 12:10:43 -08:00
Mateusz Mandera 8ef889f392 presence: Use server-provided params in the webapp.
As of the previous commit, the server provides these parameters in
page_params. The defaults match the values hard-coded in the webapp so
far - so get rid of the hard-coded values in favor of taking them from
page_params.
2023-02-21 12:10:43 -08:00
Mateusz Mandera a593089770 presence: Return some presence params in the /register response. 2023-02-21 12:10:43 -08:00
Mateusz Mandera 4ba4305ff9 presence: Change server-side OFFLINE_THRESHOLD_SECS to 140s.
This old 300s value was meaningfully used in 2 places:
1. In the do_change_user_settings presence_enabled codepath when turning
   a user invisible. It doesn't matter there, 140s is just since the
   point is to make clients see this user as offline. And 140s is the
   threshold used by clients (see the presence.js constant).
2. For calculating whether to set "offline" "status" in
   result["presence"]["aggregated"] in get_presence_backend. It's fine
   for this to become 140s, since clients shouldn't be looking at the
   status value anymore anyway and just do their calculation based on
   the timestamps.
2023-02-21 12:10:43 -08:00
Alex Vandiver d3403dde86 rabbitmq: Add a RABBITMQ_PORT setting. 2023-02-20 12:04:25 -08:00
Alex Vandiver 63de600451 backends: Use staticfilesfor social auth logos. 2023-02-14 17:17:06 -05:00
Alex Vandiver 3559bf416d settings: Allow customization of STATIC_URL.
Some requests will still be to `/static/`, either at the realm's
domain, or at the root domain.
2023-02-14 17:17:06 -05:00
Alex Vandiver e31767dda4 settings: Make DEFAULT_LOGO_URI/DEFAULT_AVATAR_URI use staticfiles. 2023-02-14 17:17:06 -05:00
Alex Vandiver 3109d40b21 puppet: Add a sentry release class.
This installs the Sentry CLI, and uses it to send API events to Sentry
when a release is started and completed.
2023-02-10 15:53:10 -08:00
Abhijeet Prasad Bodas 9d1c131dc6 muted users: Make file naming consistent.
This makes the names of the relevant files consistant with the database
model name as well as the frontend JS files.
2023-02-10 15:39:57 -08:00
Prakhar Pratyush 906ff9243a user_mutes: Rename 'muting.py' to 'user_mutes.py'.
Rename 'muting.py' to 'user_mutes.py' because it, now
, contains only user-mute related functions.

Includes minor refactoring needed after renaming the file.
2023-02-07 00:23:47 +05:30
Prakhar Pratyush 49577bbdcd user_topics: Move topic muting functions to user_topics.py.
This commit moves topic related stuff i.e. topic muting functions
to a separate file 'views/user_topics.py'.

'views/muting.py' contains functions related to user-mutes only.
2023-02-07 00:23:47 +05:30
Anders Kaseorg 59eca10a43 ruff: Fix G004 Logging statement uses f-string.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-04 16:36:20 -08:00
Alessandro Toppi ff89590558 auth: Add JWT-based user API key fetch.
This adds a new endpoint /jwt/fetch_api_key that accepts a JWT and can
be used to fetch API keys for a certain user. The target realm is
inferred from the request and the user email is part of the JWT.

A JSON containing an user API key, delivery email and (optionally)
raw user profile data is returned in response.
The profile data in the response is optional and can be retrieved by
setting the POST param "include_profile" to "true" (default=false).

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2023-02-03 15:23:35 -08:00
Lauryn Menard dbacc00f0f api-docs: Move markdown files to top level directory.
- Updates `.prettierignore` for the new directory.
- Updates any reference to the API documentation directory for
  markdown files to be `api_docs/` instead of `zerver/api/`.
- Removes a reference link from `docs/documentation/api.md` that
  hasn't referenced anything in the text since commit 0542c60.
- Update rendering of API documentation for new directory.
2023-02-02 17:25:40 -08:00
Anders Kaseorg df001db1a9 black: Reformat with Black 23.
Black 23 enforces some slightly more specific rules about empty line
counts and redundant parenthesis removal, but the result is still
compatible with Black 22.

(This does not actually upgrade our Python environment to Black 23
yet.)

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-02 10:40:13 -08:00
Anders Kaseorg d9182775c3 ruff: Fix S701 Consider using `autoescape=True`.
Django already provides this default, but be explicit to silence a
Ruff warning.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-26 10:16:30 -08:00
Anders Kaseorg 7e3a681f80 ruff: Fix S108 Probable insecure usage of temporary file.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-26 10:14:56 -08:00
Lauryn Menard dedea23745
help-docs: Move help center documentation to top level directory.
These files are not Jinja2 templates, so there's no reason that they needed
to be inside `templates/zerver`. Moving them to the top level reflects their
importance and also makes it feel nicer to work on editing the help center content, 
without it being unnecessary buried deep in the codebase.
2023-01-25 14:08:29 -08:00
Aman Agrawal 37431cf0b5 urls: Provide `email` as a GET parameter.
Since we want to use `accounts/new/send_confirm` to know how many
users actually register after visiting the register page, we
added it to Google Tag Manager, but GTM tracks every user
registration separately due <email> in the URL
making it harder to track.

To solve this, we want to pass <email> as a GET parameter which
can be easily filtered inside GTM using a RegEx and all the
registrations can be tracked as one.
2023-01-24 11:29:50 -08:00
Anders Kaseorg b0e569f07c ruff: Fix SIM102 nested `if` statements.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Alex Vandiver 04cf68b45e uploads: Serve S3 uploads directly from nginx.
When file uploads are stored in S3, this means that Zulip serves as a
302 to S3.  Because browsers do not cache redirects, this means that
no image contents can be cached -- and upon every page load or reload,
every recently-posted image must be re-fetched.  This incurs extra
load on the Zulip server, as well as potentially excessive bandwidth
usage from S3, and on the client's connection.

Switch to fetching the content from S3 in nginx, and serving the
content from nginx.  These have `Cache-control: private, immutable`
headers set on the response, allowing browsers to cache them locally.

Because nginx fetching from S3 can be slow, and requests for uploads
will generally be bunched around when a message containing them are
first posted, we instruct nginx to cache the contents locally.  This
is safe because uploaded file contents are immutable; access control
is still mediated by Django.  The nginx cache key is the URL without
query parameters, as those parameters include a time-limited signed
authentication parameter which lets nginx fetch the non-public file.

This adds a number of nginx-level configuration parameters to control
the caching which nginx performs, including the amount of in-memory
index for he cache, the maximum storage of the cache on disk, and how
long data is retained in the cache.  The currently-chosen figures are
reasonable for small to medium deployments.

The most notable effect of this change is in allowing browsers to
cache uploaded image content; however, while there will be many fewer
requests, it also has an improvement on request latency.  The
following tests were done with a non-AWS client in SFO, a server and
S3 storage in us-east-1, and with 100 requests after 10 requests of
warm-up (to fill the nginx cache).  The mean and standard deviation
are shown.

|                   | Redirect to S3      | Caching proxy, hot  | Caching proxy, cold |
| ----------------- | ------------------- | ------------------- | ------------------- |
| Time in Django    | 263.0 ms ±  28.3 ms | 258.0 ms ±  12.3 ms | 258.0 ms ±  12.3 ms |
| Small file (842b) | 586.1 ms ±  21.1 ms | 266.1 ms ±  67.4 ms | 288.6 ms ±  17.7 ms |
| Large file (660k) | 959.6 ms ± 137.9 ms | 609.5 ms ±  13.0 ms | 648.1 ms ±  43.2 ms |

The hot-cache performance is faster for both large and small files,
since it saves the client the time having to make a second request to
a separate host.  This performance improvement remains at least 100ms
even if the client is on the same coast as the server.

Cold nginx caches are only slightly slower than hot caches, because
VPC access to S3 endpoints is extremely fast (assuming it is in the
same region as the host), and nginx can pool connections to S3 and
reuse them.

However, all of the 648ms taken to serve a cold-cache large file is
occupied in nginx, as opposed to the only 263ms which was spent in
nginx when using redirects to S3.  This means that to overall spend
less time responding to uploaded-file requests in nginx, clients will
need to find files in their local cache, and skip making an
uploaded-file request, at least 60% of the time.  Modeling shows a
reduction in the number of client requests by about 70% - 80%.

The `Content-Disposition` header logic can now also be entirely shared
with the local-file codepath, as can the `url_only` path used by
mobile clients.  While we could provide the direct-to-S3 temporary
signed URL to mobile clients, we choose to provide the
served-from-Zulip signed URL, to better control caching headers on it,
and greater consistency.  In doing so, we adjust the salt used for the
URL; since these URLs are only valid for 60s, the effect of this salt
change is minimal.
2023-01-09 18:23:58 -05:00
Alex Vandiver ed6d62a9e7 avatars: Serve /user_avatars/ through Django, which offloads to nginx.
Moving `/user_avatars/` to being served partially through Django
removes the need for the `no_serve_uploads` nginx reconfiguring when
switching between S3 and local backends.  This is important because a
subsequent commit will move S3 attachments to being served through
nginx, which would make `no_serve_uploads` entirely nonsensical of a
name.

Serve the files through Django, with an offload for the actual image
response to an internal nginx route.  In development, serve the files
directly in Django.

We do _not_ mark the contents as immutable for caching purposes, since
the path for avatar images is hashed only by their user-id and a salt,
and as such are reused when a user's avatar is updated.
2023-01-09 18:23:58 -05:00
Alex Vandiver 7ad06473b6 uploads: Add LOCAL_AVATARS_DIR / LOCAL_FILES_DIR computed settings.
This avoids strewing "avatars" and "files" constants throughout.
2023-01-09 18:23:58 -05:00
Alex Vandiver cc9b028312 uploads: Set X-Accel-Redirect manually, without using django-sendfile2.
The `django-sendfile2` module unfortunately only supports a single
`SENDFILE` root path -- an invariant which subsequent commits need to
break.  Especially as Zulip only runs with a single webserver, and
thus sendfile backend, the functionality is simple to inline.

It is worth noting that the following headers from the initial Django
response are _preserved_, if present, and sent unmodified to the
client; all other headers are overridden by those supplied by the
internal redirect[^1]:
 - Content-Type
 - Content-Disposition
 - Accept-Ranges
 - Set-Cookie
 - Cache-Control
 - Expires

As such, we explicitly unset the Content-type header to allow nginx to
set it from the static file, but set Content-Disposition and
Cache-Control as we want them to be.

[^1]: https://www.nginx.com/resources/wiki/start/topics/examples/xsendfile/
2023-01-09 18:23:58 -05:00
Anders Kaseorg 17300f196c ruff: Fix ISC003 Explicitly concatenated string.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Anders Kaseorg 46cdcd3f33 ruff: Fix PIE790 Unnecessary `pass` statement.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Alex Vandiver 7613928e8a apps: Fix redirect from /apps -> https://zulip.com/apps/.
When this code was moved from being in zerver in 21a2fd482e, it kept
the `if ZILENCER_ENABLED` blocks.  Since ZILENCER and CORPORATE are
generally either both on or both off, the if statement became
mostly-unnecessary.

However, because tests cannot easily remove elements from
INSTALLED_APPS and re-determine URL resolution, we switch to checking
`if CORPORATE_ENABLED` as a guard, and leave these in-place.

The other side effect of this is that with e54ded49c4, most Zulip
deployments started to 404 requests for `/apps` instead of redirecting
them to `https://zulip.com/apps/` since they no longer had any path
configured for `/apps`.  Unfortunately, this URL is in widespread use
in the app (e.g. in links from the Welcome Bot), so we should ensure
that it does successfully redirect.

Add the `/apps` path to `zerver`, but only if not CORPORATE_ENABLED,
so the URLs do not overlap.
2022-12-30 17:47:16 -08:00
Mateusz Mandera f016ab4396 rate_limit: Add comments documenting how each rate limit rule works.
This avoid the need for spelunking the code to figure out the details of
how/when the rule is applied.
2022-12-15 12:56:51 -08:00
Aman Agrawal 51737b8905 registration: Add google analytics to realm creation process.
Track `create_realm` and `new_realm_send_confirm` using
google analytics.
This will help us track number of users who want to
create a new Zulip organization.
2022-12-08 12:10:28 -08:00
Anders Kaseorg 73c4da7974 ruff: Fix N818 exception name should be named with an Error suffix.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-17 16:52:00 -08:00
Anders Kaseorg 842a5bb54b message_flags: Allow updating flags by narrows and anchors.
Fixes #22893.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-16 21:13:44 -08:00
Anders Kaseorg 70dbeb197f middleware: Set the correct options on the django_language cookie.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-09 14:24:22 -08:00
Mateusz Mandera 34a0139c2b rate_limit: Add interface to override rate limiting rules. 2022-11-08 08:56:42 -08:00
Anders Kaseorg 55342efd33 scim: Upgrade django-scim2; remove request.user monkey patching.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-05 15:13:50 -07:00
Anders Kaseorg 9d2d6c8eb7 ruff: Fix M001 Unused `noqa` directive.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-03 12:10:15 -07:00
Anders Kaseorg adffad384c lint: Replace pycodestyle and pyflakes with ruff.
https://github.com/charliermarsh/ruff

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-03 12:10:15 -07:00
Mateusz Mandera 05913f5e3a saml: Extract logic for enabling wantMessagesSigned locally.
As explained in 158287f998,
wantMessagesSigned can't be enabled globally (as it'll break setups with
IdPs that sign SAMLResponse assertions) - but is needed for
LogoutRequests, and will be for LogoutResponses in the SP-initiated SLO
flow in future commits.

We extract a function with the necessary hacky logic for re-use in the
SP-initiated SLO implementation.
2022-11-02 21:58:46 -07:00
Lauryn Menard 1eda42f509 images: Create `/authentication_backends` directory for icons.
Creates `static/images/authentication_backends` directory for icons
of backend authentication methods, which are used on the log-in page.

And updates the example documentation in the API `/server_settings`
endpoint.
2022-10-31 14:36:54 -07:00
Anders Kaseorg b45484573e python: Use format string for logging str(obj).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-10 08:32:29 -07:00
Anders Kaseorg fcd81a8473 python: Replace avoidable uses of __special__ attributes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-10 08:32:29 -07:00
PIG208 df18bbbd48 requirements: Add django-stubs and configure plugin.
Note that django_stubs_ext is required to be placed within common.in
because we need the monkeypatched types in runtime; django-stubs
itself is for type checking only.

In the future, we would like to pin to a release instead of a git
revision, but several patches we've contributed upstream have not
appeared in a release yet.

We also remove the type annotation for RealmAuditLog.event_last_message_id
here instead of earlier because type checking fails otherwise.

Fixes #11560.
2022-10-05 16:15:56 -07:00
Anders Kaseorg 676d40d66b sentry: Initialize sentry in AppConfig ready hook.
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-09-26 12:42:36 -07:00
Anders Kaseorg a5cf3b3975 config: Remove Django base class from ZulipSettingsError.
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-09-26 12:42:36 -07:00
Anders Kaseorg 7908e2c3a5 computed_settings: Move logging callbacks from zerver.lib.logging_util.
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-09-26 12:42:36 -07:00
Anders Kaseorg 9eefc290a9 template_loaders: Extract TwoFactorLoader to new module.
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-09-26 12:42:36 -07:00
Anders Kaseorg 02be415122 settings_type: Extract new module for types used in settings.
This breaks an import cycle that prevented django-stubs from inferring
types for django.conf.settings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-09-26 12:42:36 -07:00
Mateusz Mandera 16829bd84b auth: Fix up AzureAD Oauth2 docs and config.
This commit brings AzureAD config in line with other backends:
- SOCIAL_AUTH_AZUREAD_OAUTH2_SECRET gets fetched in computed_settings.py
  instead of default_settings, consistent with github/gitlab/etc.
- SOCIAL_AUTH_AZUREAD_OAUTH2_KEY gets fetched in default_settings via
  get_secret(..., development_only=True) like other social backends, to
  allow easier set up in dev environment, in the dev-secrets.conf file.
- The secret gets renamed from azure_oauth2_secret to
  social_auth_azuread_oauth2_secret to have a consistent naming scheme with
  other social backends and with the SOCIAL_AUTH_AZUREAD_OAUTH2_KEY
  name. This is backwards-incompatible.

The instructions for setting it up are updated to fit how this is
currently done in AzureAD.
2022-09-06 11:58:08 -07:00