While it should be an invariant that message.rendered_content is never
None for a row saved to the database, it is possible for that
invariant to be violated, likely including due to bugs in previous
versions of data import/export tools.
While it'd be ideal for such messages to be rendered to fix the
invariant, it doesn't make sense for this has_link migration to crash
because of such a corrupted row, so we apply the similar policy we
already have for rendered_content="".
The query string parameter authentication method is now deprecated for
newly created Slack applications since the 24th of February[1]. This
causes Slack imports to fail, claiming that the token has none of the
required scopes.
Two methods can be used to solve this problem: either include the
authentication token in the header of an HTTP GET request, or include
it in the body of an HTTP POST request. The former is preferred, as
the code was already written to use HTTP GET requests.
Change the way the parameters are passed to the "requests.get" method
calls, to pass the token via the `Authorization` header.
[1] https://api.slack.com/changelog/2020-11-no-more-tokens-in-querystrings-for-newly-created-appsFixes: #17408.
The Slack API always (even for failed requests) puts the access scopes
of the token passed in, into "X-OAuth-Scopes"[1], which can be used to
determine if any are missing -- and if so, which.
[1] https://api.slack.com/legacy/oauth-scopes#working-with-scopes
Since the invariant we're trying to protect is that every realm has an
active owner, we should check precisely that.
The root bug here, which the parent commit failed to fix properly, is
that we were doing a "greater than" check when we clearly originally
meant a "less than" check -- lower role numbers have more permissions.
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.
A bug in the implementation of the topic moving API resulted in
organization administrators being able to move messages to streams
in other organization hosted by the same Zulip installation.
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.
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.
A bug in the implementation of replies to messages sent by outgoing
webhooks to private streams meant that an outgoing webhook bot could be
used to send messages to private streams that the user was not intended
to be able to send messages to.
Completely skipping stream access check in check_message whenever the
sender is an outgoing webhook bot is insecure, as it might allow someone
with access to the bot's API key to send arbitrary messages to all
streams in the organization. The check is only meant to be bypassed in
send_response_message, where the stream message is only being sent
because someone mentioned the bot in that stream (and thus the bot
posting there is the desired outcome). We get much better control over
what's going by passing an explicit argument to check_message when
skipping the access check is desirable.
We replace knight command with change_user_role command which
allows us to change role of a user to owner, admins, member and
guest. We can also give/revoke api_super_user permission using
this command.
Tweaked by tabbott to improve the logging output and update documentation.
Fixes#16586.
(cherry picked from commit a96811ab58)
For streams in which only full members are allowed to post,
we block guest users from posting there.
Guests users were blocked from posting to admin only streams
already. So now, guest users can only post to
STREAM_POST_POLICY_EVERYONE streams.
This is not a new feature but a bugfix which should have
happened when implementing full member stream policy / guest users.
Our intent throughout the codebase is to treat email
case-insensitively.
The only codepath affected by this bug is remote_user_sso, as that's the
only one that currently passes potentially both a user_profile and
ExternalAuthDataDict when creating the ExternalAuthResult. That's why we
add a test specifically for that codepath.
Apparently, `update_message` events unexpectedly contained what were
intended to be internal data structures about which users were
mentioned in a given message.
The bug has been present and accumulating new data structures for
years.
Fixing this should improve the performance of handling update_message
events as well as cleaning up this API's interface.
This was discovered by our automated API documentation schema checking
tooling detecting these unexpected elements in these event
definitions; that same logic should prevent future bugs like this from
being introduced in the future.
This commit rewrites the way addresses are collected. If
the header with the address is not an AddressHeader (for instance,
Delivered-To and Envelope-To), we take its string representation.
Fixes: #15864 ("Error in email_mirror - _UnstructuredHeader has no attribute addresses").
This commit re-adds the integration for canarytokens.org, now separate
from the primary Thinkst integration.
Signed-off-by: David Wood <david@davidtw.co>
This commit fixes the Thinkst Canary integration which - based on the
schema in upstream documentation - incorrectly assumed that some fields
would always be sent, which meant that the integration would fail. In
addition, this commit adjusts support for canarytokens to only support
the canarytoken schema with Thinkst Canaries (not Thinkst's
canarytokens.org).
Signed-off-by: David Wood <david@davidtw.co>
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
A few major themes here:
- We remove short_name from UserProfile
and add the appropriate migration.
- We remove short_name from various
cache-related lists of fields.
- We allow import tools to continue to
write short_name to their export files,
and then we simply ignore the field
at import time.
- We change functions like do_create_user,
create_user_profile, etc.
- We keep short_name in the /json/bots
API. (It actually gets turned into
an email.)
- We don't modify our LDAP code much
here.
When you post to /json/users, we no longer
require or look at the short_name parameter,
since we don't use it in any meaningful way.
An upcoming commit will eliminate it from the
database.
This fixes up some complex helpers that may
have had some value before f-strings come along,
but they mostly obscured the logic for
people reading the tests.
We still keep really simple helpers for the
common cases, but there are no optional
parameters for them.
One goal of this fix is to remove the
short_name concept, and we just explicitly
set senders everywhere we need them.
We also now have each test just explicitly set
its reaction_type.
For cases where we have custom message ids
or senders, we just inline the simple call
to api_post.
We generally want to avoid having two sibling test
suites depend on each other, unless there's a real
compelling reason to share code. (And if there is
code to share, we can usually promote it to either
test_helpers or ZulipTestCase, as I did here.)
This commit is also prep for the next commit, where
I try to simplify all of the helpers in EmojiReactionBase.
Especially now that we have f-strings, it is usually
better to just call api_post explicitly than to
obscure the mechanism with thin wrappers around
api_post. Our url schemes are pretty stable, so it's
unlikely that the helpers are actually gonna prevent
future busywork.
It's not clear to me why these passed mypy
before, given this:
def assert_realm_values(f: Callable[[Realm], Any], ...
But this is clearly more accurate.
This issue isn't something a system administrator needs to take action
on -- it's a likely minor logic bug around organization
administrators moving topics between streams.
As a result, it shouldn't send error emails to administrators.
This is a hacky fix to avoid spoiler content leaking in emails. The
general idea here is to tell people to open Zulip to view the actual
message in full.
We create a mini-markdown parser here that strips away the fence content
that has the 'spoiler' tag for the text emails.
Our handling of html emails is much better in comparison where we can
use lxml to parse the spoiler blocks.
We include tests for the new implementation to avoid churning the
codebase too much so this can be easily reverted when we are able to
re-enable the feature.
The tests had a bunch of different ways to create
users; now we are consistent. (This is a bit of
a prep step, too, to allow us to easily clean
Hamlet's existing words before each test.)
We could certainly do better with the handling here, but using the raw
string that the user gave us is okayish for now.
Proper formatting of timestamps requires handling locales and timezones
of the receiver as well which is a larger project.
We now do something sensible for spoilers in notifications. A message
like:
```spoiler Luke's father is
Vader. Don't tell anyone else.
```
would be rendered as:
Luke's father is (...)
