Commit Graph

5553 Commits

Author SHA1 Message Date
Gaurav Pandey b2111f5753 api: Fix encoding of strings in default stream groups.
Remove unnecessary json_validator for string parameters.  This change
does not modify JavaScript because we don't have a frontend for these
API endpoints yet.

Fixes part of #18035.
2021-05-07 14:06:37 -07:00
Gaurav Pandey d6cf1ef27b api: Fix encoding of strings in hotspot endpoint.
* Remove unnecessary json_validator for string parameter.
* Update frontend to pass right parameters.

Fixes part of #18035.
2021-05-07 11:45:25 -07:00
Vishnu KS 772500d1c6 validators: Make to_positive_or_allowed_int an optional argument. 2021-05-07 09:37:41 -07:00
Mateusz Mandera 98ec84eae2 tests: Change password hashers used in tests that set them.
The previous hashers mirrored the ones used in production, but that was
non-ideal because those are slow. Replacing them with quick hashers is a
performance improvement for those tests.
2021-05-07 09:10:45 -07:00
Mateusz Mandera 4006bb5153 auth: Improve display of errors when user needs to reset password.
Raising jsonableError in the authentication form was non-ideal because
it took the user to an ugly page with the returned json.

We also add logging of this rare occurence of the scenario being
handled here.
2021-05-07 09:10:45 -07:00
Dinesh 00e0b63c6c auth: Handle user_profile.check_password raising PasswordTooWeakError.
user_profile.check_password(password) in authenticate of
EmailAuthBackend can raise PasswordTooWeakError; this happens when the
user's password is weaker than the current required policies and needs
to be rehashed (E.g. because, as in Django 3.2, the minimum salt
entropy increased).

This is a very rare case, but still needs a good user-facing error
message. We raise a json error to handle this with a user-facing error
message.

See this comment by Mateusz Mandera for a detailed explanation
about this case along with a traceback it generates.
https://github.com/zulip/zulip/pull/15449#discussion_r448308614
2021-05-07 09:10:45 -07:00
Alex Vandiver 8df82f50e4 outgoing_http: Provide a convenient way to set default headers. 2021-05-07 08:39:36 -07:00
Alex Vandiver 6339e7fd47 outgoing_http: Put the X-Smokescreen-Role in the proxy headers. 2021-05-07 08:39:36 -07:00
Alex Vandiver b88d7a741e outgoing_http: Factor out outgoing HTTP session with timeout. 2021-05-07 08:39:36 -07:00
Alex Vandiver 2dc6df33ae tests: Switch outgoing_webhook_system to use responses. 2021-05-07 08:39:36 -07:00
Alex Vandiver af26849554 outgoing_webhook: Set a default timeout of 10s.
Support for the timeouts, and tests for them, was added in
53a8b2ac87 -- though no code could have set them after 31597cf33e.

Add a 10-second default timeout.  Observationally, p99 is just about
5s, with everything else being previously being destined to meet the
30s worker timeout; 10s provides a sizable buffer between them.

Fixes #17742.
2021-05-07 08:39:36 -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
pletinckxc cc4cc9d14f test_send_email: Shorten tests about build_email.
Commit b7fa41601d introduced some tests
to verify the implemented changes. These tests were longer than necessary.
See https://github.com/zulip/zulip/pull/17799 for the whole discussion.
2021-05-05 20:16:11 -07:00
Cyril Pletinckx e4ff372fc3 emails: Transform SMTPException into EmailNotDeliveredException.
Django's default SMTP implementation can raise various exceptions
when trying to send an email. In order to allow Zulip calling code
to catch fewer exceptions to handle any cause of "email not
sent", we translate most of them into EmailNotDeliveredException.
The non-translated exceptions concern the connection with the
SMTP server. They were not merged with the rest to keep some
details about the nature of these.

Tests are implemented in the test_send_email.py module.
2021-05-05 20:16:11 -07:00
Mateusz Mandera cc96f02947 presence: Disable live presence updates in larger realms.
As discussed in the comment, this is a critical scalability
optimization for organizations with thousands of users.

With substantial comment updates by tabbott.
2021-05-05 08:50:42 -07:00
shanukun 5cee9dee12 test_email_change: User create_confirmation_link for url.
This is a prep refactor, instead of creating Confirmation
object and using `confirmation_url` for generating confirmation
link/url, using `create_confirmation_link` would be a cleaner
approach, also this can help us avoid failing test in case
Confirmation model is changed.

Part of #16359.
2021-05-04 10:48:51 -07:00
sahil839 6e672ebbee settings: Add moderators option for wildcard_mention_policy. 2021-05-03 12:12:01 -07:00
sahil839 141232749b test_message_send: Modify test_wildcard_mention_restrictions.
This commit modifies the test_wildcard_mention_restrictions test
for checking that moderators are not allowed to send messages
with wildcard mention if wildcard_mention_policy is set to
WILDCARD_MENTION_POLICY_ADMINS. Previously, we were checking
for members, but it is better to check for moderators.
2021-05-03 12:12:01 -07:00
Tim Abbott 1489c24860 test_decorators: Don't try to mutate is_staff.
Apparently, after upgrading to Django 3.2, mutating is_staff and then
saving can result in a user's session being destroyed.

In any case, this test is probably better written using two different
users with the different roles, which we have in our initial database
anyway.
2021-05-03 09:26:00 -07:00
Tim Abbott 935a7b18cb test_signup: For test overly sensitive to whitespace.
This test started failing after a rebase from a branch 2 weeks ago
where it passed.
2021-05-02 11:35:32 -07:00
Tim Abbott 97b08b77df registration: Improve error handling for source_realm_id.
This restores the previous behavior that we store None rather than
throwing an exception in the presence of invalid input.
2021-05-02 11:12:49 -07:00
Siddharth Asthana 55da3329ef registration: Rename source_realm field to source_realm_id.
Now that we are passing source realm's id instead of string_id in
source realm selector, it makes sense to rename the "source_realm" field
to "source_realm_id".
2021-05-02 11:12:49 -07:00
Siddharth Asthana 4262c04db1 registration: Encode source realm as an integer.
In the source realm selector, when we select a realm from which we want
to import the data, we pass the source realm's string_id. The problem
with this approach is that the string_id can be an empty string. This
commit makes the source_realm pass the realm's id instead of string_id.
Now, the source_realm's value will either be an integer or "" (empty
string) when we don't want to import settings from any realm.
2021-05-02 11:12:49 -07:00
Anders Kaseorg 995389b4c1 markdown: Don’t apply further Markdown processing to KaTeX output.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-05-01 15:43:35 -07:00
Anders Kaseorg 802c8de0e8 fenced_code: Wrap math blocks in the frontend like the backend.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-05-01 15:36:15 -07:00
pilgrim2308 a74b52db22 UI: Add Zulip version in gear menu.
Currently only enabled in development, since the exact details don't
seem right..

Co-Author-By: Signior-X <b19188@students.iitmandi.ac.in>
Co-Author-By: Aman Agrawal <amanagr@zulip.com>

Implements UI for #8005.
2021-04-30 17:58:08 -07:00
sahil839 e669818544 invites: Allow user to be invited as a moderator.
This commit adds both frontend and backend code to invite a user as
moderator. We allow only existing owners and admins to invite a user
as a moderator.
2021-04-30 15:57:09 -07:00
Alex Vandiver fd1774dcba push_notifications: Give full stack information on an exception.
This error has been seen in production instances, but we need more
context to be able to determine what might be causing it.
2021-04-30 14:03:52 -07:00
Wesley Aptekar-Cassels 6b7a3fb74a markdown: Rewrite all external images to use Camo.
Requesting external images is a privacy risk, so route all external
images through Camo.

Tweaked by tabbott for better test coverage, more comments, and to fix
bugs.
2021-04-30 10:36:16 -07:00
Ganesh Pawar ddf2127035 widgets: Prevent edits to widgets.
As of now, editing a widget doesn't update the rendered content.
It's important to ensure that existing votes or options added later on
don't get deleted when rendered.
This seems more complex than it's worth.

For now, we just prevent edits to widgets.
This commit makes the UI clearer that editing widgets isn't allowed.

See also:
https://github.com/zulip/zulip/issues/14229
https://github.com/zulip/zulip/issues/14799

Fixes #17156
2021-04-30 09:55:25 -07:00
Vishnu KS 7f3fc3423b audit log: Create audit log when a realm is created.
This is mainly useful in recording the user who created the realm,
when possible.
2021-04-30 09:25:11 -07:00
Ganesh Pawar 830f1fa8c5 upload: Refactor and add tests for ensure_avatar_image in upload.py.
`ensure_basic_avatar_image` and `ensure_medium_avatar_image` are
essentially the same thing, except a size parameter.
So, refactor them into a single function.

This doesn't introduce any functional changes.
2021-04-29 21:18:13 -07:00
Tim Abbott 615ad2d5d8 middleware: Simplify logic for parsing user-agent.
This avoids calling parse_user_agent twice when dealing with official
Zulip clients, and also makes the logical flow hopefully easier to read.

We move get_client_name out of decorator.py, since it no longer
belongs there, and give it a nicer name.
2021-04-29 17:47:41 -07:00
orientor 6224d83dea middleware: Get client name in LogRequests instead of process_client.
This ensures it is present for all requests; while that was already
essentially true via process_client being called from every standard
decorator, this allows middleware and other code to rely on this
having been set.
2021-04-29 17:03:05 -07:00
Anders Kaseorg 871e73ab8f mypy: Don’t use Iterable for values iterated multiple times.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-29 16:06:17 -07:00
sahil839 bd78b1ff90 events: Add 'is_moderator' field to the page_params object sent to clients. 2021-04-29 15:18:49 -07:00
sahil839 dc771f3a14 users: Add support for changing user role to moderator in api.
This commit adds backend support for changing a user role to
moderator and also to change role from moderator to any other
role.
2021-04-29 15:17:45 -07:00
sahil839 34f134d58d users: Add role field to user objects returned by format_user_row.
This commit modifies the user objects returned by 'GET /users',
'GET /users/me', 'GET /users/{user_id}' and 'GET /users/{email}'
endpoints to include role field.

We also include role field in the page_params['realm_users'] dict
and in the person object sent in (type="realm_user", op="add")
event.
2021-04-29 15:13:50 -07:00
Alex Vandiver 8711ab7676 outgoing_webhook: Add a logging statement for each outgoing webhook.
This will help determine potentail timeout lengths, as well as serve
as a generally-useful log for locations which do not have Smokescreen
enabled.

In service of #17742.
2021-04-29 12:37:14 -07:00
m-e-l-u-h-a-n 65c400e06d api: Add zulip_version and zulip_feature_level in restart event.
This help mobile and terminal clients understand whether a server
restart changed API feature levels or not, which in turn determines
whether they will need to resynchronize their data.

Also add tests and documentation for this previously undocumented
event type.

Fixes: #18205.
2021-04-29 12:08:15 -07:00
m-e-l-u-h-a-n d2c18e28a4 api: Handle restart events in apply_events.
Event of type restart could not be handled properly, because of
its special behavior. For handling this event in most natural way
we recursively call `do_events_register` when restart event is
recieved, based on custom error created for this event.

Testing: Second call to get_user_events due to recursive calling
of do_event_register, is expected to not contain the restart event.
So new test added in test_event_system.py are based on above behavior
of get_user_events.

Fixes: #15541.
2021-04-29 11:40:59 -07:00
Anders Kaseorg 31105b78f2 test_signup: Test List-Unsubscribe POST request.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-28 17:19:35 -07:00
Anders Kaseorg f4b3c15fe8 test_signup: Fix copy-paste mistakes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-28 17:19:35 -07:00
strifel 02c5676a67 ldap: Add advanced LDAP realm access control.
This allows access to be more configurable than just setting one
attribute.  This can be configured by setting the setting
AUTH_LDAP_ADVANCED_REALM_ACCESS_CONTROL.
2021-04-28 09:08:13 -07:00
PIG208 d20deccee7 tests: Add a test for fixtures for non-webhook integrations.
This commit create a directory to store the mock message for nagios and
more will be added.

The json files in this directory will be used to config the screenshot
generating script for the documentations of non-webhook integrations.
2021-04-28 08:16:51 -07:00
im-adithya 009b7bca24 alert_words: Fix highlighting of adjacent alert words.
This prevents the regex from requiring multiple spaces between
adjacent alert words by using lookahead and lookbehind (rather than
the before/after checks each needing to eat a whitespace character) so
that consecutive alert words (if any) can be highlighted.

With a frontend test covering adjacent corner cases by tabbott.

Fixes #17320
2021-04-28 07:54:50 -07:00
Tim Abbott a0e18cb06a send_custom_email: Improve printing of outgoing emails.
The fake email addresses are not useful for debugging/confirmation,
and additionally it's nice to have the realms listed as well.
2021-04-27 21:36:17 -07:00
Tim Abbott 50f00d3e97 emails: Add unsubscribe link infrastructure for marketing emails.
This is intended to be used in any marketing emails that we send with
the send_custom_email infrastructure.
2021-04-27 21:36:09 -07:00
Dinesh 27e4f5da92 typing: Support sending stream/topic typing status.
This extends the /json/typing endpoint to also accept
stream_id and topic. With this change, the requests
sent to /json/typing should have these:
* `to`: a list set to
    - recipients for a PM
    - stream_id for a stream message
* `topic`, in case of stream message
along with `op`(start or stop).

On receiving a request with stream_id and topic, we send
typing events to clients with stream_typing_notifications set
to True for all users subscribed to that stream.
2021-04-27 20:52:21 -07:00
Dinesh 734d935d4a client_capabilities: Add stream_typing_notifications. 2021-04-27 20:52:21 -07:00
Tim Abbott 05f2ebb2b8 settings: Include units in SERVER_UPGRADE_NAG_DEADLINE_DAYS name.
When naming things with units of time involved, it's always good to
include units in the name, so that the meaning is clear.
2021-04-27 17:15:16 -07:00
Nyior 8e2042d378 security: Add tooling to nag users if a Zulip server is very old.
This will help ensure that users upgrade their Zulip server.

Essentially rewritten by tabbott.

Fixes part of #17826.
2021-04-27 12:10:48 -07:00
Siddharth Asthana a81c4b5e4c send_custom_email: Add dry-run flag to verify recipients and email.
Add a `--dry-run` flag to send_custom_email management command
in order to provide a mechanism to verify the emails of the recipients
and the text of the email being sent before actually sending them.

Add tests to:
- Check that no emails are actually sent when we are in the dry-run mode.
- Check if the emails are printed correctly when we are in the dry-run mode.

Fixes #17767
2021-04-26 17:31:34 -07:00
Cyril Pletinckx 9afde790c6 email: Open a single SMTP connection to send email batches.
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.
2021-04-26 17:27:22 -07:00
Mateusz Mandera b7b1ec0aeb outgoing_webhook: Improve invalid json handling when parsing response.
It's better to just raise JsonableError here, as that makes this error
processed in the central place for this kind of thing in do_rest_call:
---------
except JsonableError as e:
    response_message = e.msg
    logging.info("Outhook trigger failed:", stack_info=True)
    fail_with_message(event, response_message)
    response_message = f"The outgoing webhook server attempted to send a message in Zulip, but that request resulted in the following error:\n> {e}"
    notify_bot_owner(event, failure_message=response_message)
    return None
----------

which does all the things that are supposed to happen -
fail_with_message, appropriate logging and notifying the bot owner.
2021-04-26 09:32:35 -07:00
Mateusz Mandera f1a3f6056a outgoing_webhook: Fix invalid ResponseMock(200) mocks in tests.
These aren't good mocks of a good reponse - a good response is supposed
to contain valid json that doesn't trigger error-handling in the
codepath. Without this change, all these actually trip up on
json.loads(response.text) in process_success_response.
2021-04-26 09:32:35 -07:00
Mateusz Mandera b998138d3a outgoing_webhook: Handle valid, but unexpected json in response.
Responses such as "null" or "true" are valid json, but json.loads
returns different objects than dicts that the codepath expects.

Fixes #18223.
2021-04-26 09:32:35 -07:00
Anders Kaseorg 6060d0d364 docs: Add missing space to compound verbs “log in”, “set up”, etc.
Noun: backup, checkout, cleanup, login, logout, setup, shutdown, signup,
timeout.

Verb: back up, check out, clean up, log in, log out, set up, shut
down, sign up, time out.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-26 09:31:08 -07:00
Anders Kaseorg 178736c8eb docs: Fix spelling errors caught by codespell.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-26 09:31:08 -07:00
Aman Agrawal ebe822341d message_edit: Don't add content edit to all messages.
Remove content edit keys if present in edit_history_event
when passing to update_messages_for_topic_edit.

Since content edit is only applied to the edited_message,
this shouldn't be part of the rest of the messages for which
topic was edited. This was a bug identified by
editing topic and content of a message at the same time
when more than 1 message is affected.
2021-04-24 13:51:49 -07:00
Anders Kaseorg cef2ecf004 i18n: Pass language name with every response.
With a comment added by tabbott on live-update considerations.

See https://chat.zulip.org/#narrow/stream/9-issues/topic/FormatJS.20error.20in.20standalone.20pages/near/1168413 for context.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-24 13:00:27 -07:00
Riken Shah 0e5f6c21ad refactor: Split dev related code from `auth.py` into `dev_login.py`.
This refactor will help us make our development-related authentication
code to avoid production security impact.
2021-04-23 15:11:44 -07:00
Mateusz Mandera 977a2f7fa0 emails: Rename "missed message email" to "message notification email". 2021-04-21 10:10:54 -07:00
Mateusz Mandera cc11575b21 emails: Rename "New missed messages" email subjects to "New messages". 2021-04-21 10:10:54 -07:00
Mateusz Mandera 716449030d emails: Rename missed message email sender to "Zulip notifcations".
It was decided that this is more appropriate naming. "Missed message"
gives it a bit of a sound like something went wrong.
2021-04-21 10:10:54 -07:00
Anders Kaseorg dd3fa4ac52 templates: Mark all void tags as self-closing.
This reverses the policy that was set, but incompletely enforced, by
commit 951514dd7d.  The self-closing tag
syntax is clearer, more consistent, simpler to parse, compatible with
XML, preferred by Prettier, and (most importantly now) required by
FormatJS.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-21 09:49:34 -07:00
akshatdalton 6509c4f8f4 linkifiers: Add an API to support the editing of linkifier.
This commit adds an API to `zproject/urls.py` to edit/update
the realm linkifier. Its helper function to update the
database is added in `zerver/lib/actions.py`.

`zulip.yaml` is documented accordingly as well, clearly
stating that this API updates one linkifier at a time.

The tests are added for the API and helper function which
updates the realm linkifier.

Fixes #10830.
2021-04-19 18:01:45 -07:00
akshatdalton c180cd5fa1 Refactor: Use backend-endpoint function instead of helper function.
Use backend-endpoint function instead of helper function in
`test_realm_linkifiers.py` so that tests are more end-to-end.

The removed helper function: `do_add_linkifier` is tested in
`zerver/tests/test_events.py`.
2021-04-19 18:01:45 -07:00
akshatdalton 5bbfa24d74 Refactor: Rename `Filter` to `Linkifier`.
Linkifier error message: `Filter not found` is
updated to `Linkifier not found.`.

Similarly, `filter_id` description is updated to:
`The ID of the linkifier that you want to remove.`,
renamed the term `filter` with `linkifier`, in `zulip.yaml`.
2021-04-19 18:01:45 -07:00
Aman Agrawal 70d444a8eb compose: Move to `hbs` file and append it to DOM on init.
We move compose.html to compose.hbs file while keeping
`#compose` still in `home.html` as a hanger
where append rest of the elements.

This will provide us with two benefits:
* We could share common elements between message_edit_form and
compose.
* We can insert compose directly in any element. We may decide to
do it for recent topics.
2021-04-19 16:53:30 -07:00
Sumanth V Rao f9b79999ed playgrounds: Avoid json encoding each field in POST /realm/playgrounds.
This prevents us from having to json encode every field in the POST
request to /realm/playgrounds, and keeps the client logic simpler
when adding a playground.
2021-04-19 11:23:09 -07:00
Mateusz Mandera ccfcc186ad subs: Fix subscriber_..._history_access to not exclude subbed guests.
Guests are supposed to have stream history access to public streams
they're subscribed to.
2021-04-19 10:10:51 -07:00
Mateusz Mandera 50bfbb588e subs: Allow filtering by is_user_active in get_active_subscriptions.
get_active_subscriptions_for_stream_id should allow specifying whether
subscriptions of deactivated users should be included in the result.
Active subs of deactivated users are  a subtlety that's easy to miss
when writing relevant code, so we make include_deactivated_users a
mandatory kwarg - this will force callers to definitely give thought to
whether such subs should be included or not.

This commit is just a refactoring, we keep original behavior everywhere
- there are places where subs of deactivates users should probably be
excluded but aren't - we don't fix that here, it'll be addressed in
follow-up commits.
2021-04-19 10:10:51 -07:00
sahil839 4ac3fabadd models: Add new helper can_move_messages_between_streams.
This commit adds new helper can_move_messages_between_streams
which will be used to check whether a user is allowed to move
messages from one stream to another according to value of
'move_messages_between_streams_policy'.
2021-04-16 15:16:08 -07:00
sahil839 2dc99aa90f settings: Add new setting for controlling who can move msgs to stream.
This commit adds a new setting 'move_messages_between_streams_policy`
for controlling who can move messages from one stream to other.
2021-04-16 15:10:39 -07:00
Vishnu KS e72dea1de6 models: Create get_first_human_user function in Realm. 2021-04-16 13:22:01 -07:00
Mateusz Mandera 2983a7e799 test_home: Fix user_activity queue event format in a test.
Current production code uses client_id in the event dict and this test
should be updated to reflect that. Old format event can still be
consumed by the worker, but that is already tested by
WorkerTest.test_UserActivityWorker.
2021-04-16 11:02:48 -07:00
Tim Abbott 208721b3d7 left sidebar: Fix misleading "search streams" label.
This widget only filters the user's subscription -- it's only suggest
public streams that the user is not subscribed to.  "Filter" is the
correct label for a widget with this use case.
2021-04-15 15:36:05 -07:00
Mateusz Mandera b4542cc059 message_edit: Verify the message is in a stream in move message API.
This wasn't being validated before. There wasn't any possibility to
actually succeed in moving a private message, because the codepath would
fail at assert message.is_stream_message() in do_update_message - but we
should have proper error handling for that case instead of internal
server errors.
2021-04-14 12:37:34 -07:00
Mateusz Mandera 0c0e83eaff message_edit: Verify user has access to old stream when moving message.
Otherwise an admin can move a topic from a private stream they're no
longer a part of - including the newest messages in the topic, that
they're not supposed to have access to.
2021-04-14 12:37:34 -07:00
Tim Abbott 9d852870ee streams: Delete risky helper get_stream_by_id. 2021-04-14 12:37:34 -07:00
Mateusz Mandera 3ba8348c51 CVE-2021-30487: Prevent admins from moving topics to disallowed streams.
A bug in the implementation of the topic moving API resulted in
organization administrators being able to move messages to streams they
shouldn't be allowed to - private streams they weren't subscribed to and
streams in other organization hosted by the same Zulip installation.

In our current model realm admins can't send messages to private streams
they're not subscribed to - and being able move messages to a
stream effectively allows to send messages to that stream and thus the
two need to be consistent.
2021-04-14 12:37:34 -07:00
Mateusz Mandera 140655d69e CVE-2021-30479: Prevent guest user access to all_public_streams API.
A bug in the implementation of the all_public_streams API feature
resulted in guest users being able to receive message traffic to public
streams that should have been only accessible to members of the
organization.
2021-04-14 12:37:34 -07:00
Mateusz Mandera 6e11754642 CVE-2021-30478: Prevent API super users from forging messages to other organizations.
A bug in the implementation of the can_forge_sender permission
(previously is_api_super_user) resulted in users with this permission
being able to send messages appearing as if sent by a system bots,
including to other organizations hosted by the same Zulip installation.

- The send message API had a bug allowing an api super user to
  use forging to send messages to other realms' streams, as a
  cross-realm bot. We fix this most directly by eliminating the
  realm_str parameter - it is not necessary for any valid current use
  case. The email gateway doesn't use this API despite the comment in
  that block suggesting otherwise.
- The conditionals inside access_stream_for_send_message are changed up
  to improve security. They were generally not ordered very well,
  allowing the function to successfully return due to very weak
  acceptance conditions - skipping the higher importance checks that
  should lead to raising an error.
- The query count in test_subs is decreased because
  access_stream_for_send_message returns earlier when doing its check
  for a cross-realm bot sender - some subscription checking queries are
  skipped.
- A linkifier test in test_message_dict needs to be changed. It didn't
  make much sense in the first place, because it was creating a message
  by a normal user, to a stream outside of the user's realm. That
  shouldn't even be allowed.
2021-04-14 12:37:34 -07:00
Aman Agrawal 802c450b3f realm: Add setting to configure GIPHY rating.
Organization admins can use this setting to restrict the maximum
rating of GIFs that will be retrieved from GIPHY. Also, there
is option to disable GIPHY too.
2021-04-14 10:29:39 -07:00
Anders Kaseorg 5fed442bb1 templates: Remove context argument from {{#tr}} block helper.
It only had one nontrivial use, and it’s easily replaced using the
builtin {{#with}} block helper.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-13 18:59:46 -07:00
sahil839 e40ebe1a5d test_users: Refactor user role change tests to use a single helper.
Currently, there are separate tests for testing change of one role
to other, precisely 8, with most of them having similar structure
of code. This commit adds a helper function check_user_role_change
which contains all the code for testing and the tests for different
role just use this helper function to avoid duplication of code.

This refactor is helpful considering we would want to add tests
for moderators also, which would contain multiple tests for
testing changing different user roles to moderator and vice versa.

Tweaked by timabbott to make the code more readable by checking for
every user role flag instead of just checking the certain flags and
using conditionals.

Co-authored-by: Tim Abbott
2021-04-13 17:49:36 -07:00
sahil839 d8c58527cc models: Remove unused function can_access_all_realm_members.
This commit removes can_access_all_realm_members function as
it is not used anywhere in code other than tests.

This function was originally added in 4483e33102 and was
only used in digest.py other than the tests, but its use
in diget.py was removed in 735b6cb761 and the function
itself was not removed from models.py.
2021-04-13 17:49:36 -07:00
sahil839 685fbffd91 tests: Refactor check_has_permission_policies to check for all user roles.
We refactor check_has_permission_policies to check for all user roles for
each value of policy. This will help in handle a case where a guest is
allowed to do something but moderator isn't.

We need to do user_profile.refresh_from_db() in validation_func because
the realm object from user_profile is used in has_permission and we need
updated realm instance after changing the policy.

This is a follow-up commit to 9a4c58cb.
2021-04-13 17:48:23 -07:00
Anders Kaseorg d8a36d0702 i18n: Remove i18next.
Fixes #17890.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-13 17:41:10 -07:00
Abhijeet Prasad Bodas 3947b0c80a linkifiers: Update API to send data using dictionaries.
* This introduces a new event type `realm_linkifiers` and
a new key for the initial data fetch of the same name.
Newer clients will be expected to use these.

* Backwards compatibility is ensured by changing neither
the current event nor the /register key. The data which
these hold is the same as before, but internally, it is
generated by processing the `realm_linkifiers` data.
We send both the old and the new event types to clients
whenever the linkifiers are changed.
Older clients will simply ignore the new event type, and
vice versa.

* The `realm/filters:GET` endpoint (which returns tuples)
is currently used by none of the official Zulip clients.
This commit replaces it with `realm/linkifiers:GET` which
returns data in the new dictionary format.
TODO: Update the `get_realm_filters` method in the API
bindings, to hit this new URL instead of the old one.

* This also updates the webapp frontend to use the newer
events and keys.
2021-04-13 12:16:07 -07:00
Arun Sankar 146b32d63a test users: Add an escape char to a test username.
Changed the name of the test-user cordelia from `Cordelia Lear` to
`Cordelia, Lear's daughter`.

This change will enable us to test users with escape characters in
their names.

I also updated the Node, Puppeteer, Backend tests and Fixtures to
support this change.
2021-04-13 11:42:06 -07:00
Tim Abbott 4e8a5f4da8 test_signup: Fix test making DNS query to public Internet.
This appears to be the result of our having copied parts of the
previous test without copying its DNS query decorator.
2021-04-13 10:47:35 -07:00
Tim Abbott 2e928a0853 markdown: Remove logic for creating markdown engines for all realms.
This logic likely never ran due to a combination of bugs.

* Running `maybe_update_markdown_engines` unconditionally meant that
  `if md_engine_key in md_engines` was likely always true.
* Introduced in 65838bb: DEFAULT_MARKDOWN_KEY could never be in
  md_engines, so should we have ever reached that code path, we'd have
  tried to rebuild all markdown engines every time.

And it also wasn't clearly helpful -- because we fetch all linkifiers
for a realm on every request anyway, we don't really save database
queries by doing a bulk fetch on startup, and doing so would likely
result in a material regression to Zulip's overall startup time that
we were creating markdown engines for large numbers of realms in bulk
during process startup.
2021-04-13 09:18:18 -07:00
Abhijeet Prasad Bodas 8b098b95bb mute user: Mark as read old messages immediately.
When a user is muted, in the same request,
we mark any existing unreads from that user
as read.

This is done for all types of messages
(PM/huddle/stream) and regardless of whether
the user was mentioned in them.

This will not break the unread count logic
of the web frontend, because that algorithm
decides which messages to mark as read based
only on the pointer location and the whitespace
at the bottom, not on what messages have already
been marked as read.
2021-04-13 09:08:47 -07:00
Abhijeet Prasad Bodas 2f56f8d0ed mute user: Mark as read new messages.
Messages sent by muted users are marked as read
as soon as they are sent (or, more accurately,
while creating the database entries itself), regardless
of type (stream/huddle/PM).

ede73ee4cd, makes it easy to
pass a list to `do_send_messages` containing user-ids for
whom the message should be marked as read.
We add the contents of this list to the set of muter IDs,
and then pass it on to `create_user_messages`.

This benefits from the caching behaviour of `get_muting_users`
and should not cause performance issues long term.

The consequence is that messages sent by muted users will
not contribute to unread counts and notifications.

This commit does not affect the unread messages
(if any) present just before muting, but only handles
subsequent messages. Old unreads will be handled in
further commits.
2021-04-13 09:08:47 -07:00
Abhijeet Prasad Bodas b140c17441 mute user: Cache list of muter IDs.
This commit defines a new function `get_muting_users`
which will return a list of IDs of users who have muted
a given user.
Whenever someone mutes/unmutes  a user, the cache will be
flushed, and subsequently when that user sends a message,
the cache will be populated with the list of people who
have muted them (maybe empty).

This data is a good candidate for caching because-

1. The function will later be called from the message send
codepath, and we try to minimize database queries there.

2. The entries will be pretty tiny.

3. The entries won't churn too much. An average user will
send messages much more frequently than get muted/unmuted,
and the first time penalty of hitting the db and populating
the cache should ideally get amortized by avoiding several
DB lookups on subsequent message sends.

The actual code to call this function will be written in
further commits.
2021-04-13 09:08:47 -07:00
Abhijeet Prasad Bodas 9602aa1467 mute user: Record entries in RealmAuditLog.
This makes it so that RealmAuditLog entries are
created when a user mutes/unmutes someone.

We don't really need to store the time, but we
do so anyways, because the `event_time` field
is currently a non-nullable one in the `RealmAuditLog`
model, and making it nullable would risk allowing
not specifying the time in other more important
code which also creates `RealmAuditLog` entries.

This also fixes an incorrect test of successfully
unmuting with the API. Earlier it did not mock
the time in the `views/muting.py` code to return
`mute_time`.
2021-04-13 09:08:47 -07:00
Zeeshan Equbal 2da4443cc5
api: Add max_message_length field to API data.
Commit 4a3ad0d introduced some extra stream-level parameters
to the `realm` object. This commit extends that to add a
max_message_length paramter too in the same server_level.
2021-04-12 16:03:31 -07:00
Tim Abbott 4a3ad0da06 api: Improve encoding of stream/topic max field lengths.
Previously, you had to request the `stream` event type in order to get
the stream-level parameters; this was a bad design in part because the
`subscription` event type has similar data and is preferred by most
clients.

So we move these to the `realm` object.  We also add the maximum topic
length, as an adjacent parameter.

While changing this, we also fix these to better match the names of
similar API parameters.
2021-04-10 10:07:57 -07:00