Commit Graph

7297 Commits

Author SHA1 Message Date
Alex Vandiver b67108c8c6 retention: Prevent deletion of partially-archived messages.
Previously, this code:
```python3
old_archived_attachments = ArchivedAttachment.objects.annotate(
    has_other_messages=Exists(
        Attachment.objects.filter(id=OuterRef("id"))
        .exclude(messages=None)
        .exclude(scheduled_messages=None)
    )
).filter(messages=None, create_time__lt=delta_weeks_ago, has_other_messages=False)
```

...protected from removal any ArchivedAttachment objects where there
was an Attachment which had _both_ a message _and_ a scheduled
message, instead of _either_ a message _or_ a scheduled message.
Since files are removed from disk when the ArchivedAttachment rows are
deleted, this meant that if an upload was referenced in two messages,
and one was deleted, the file was permanently deleted when the
ArchivedMessage and ArchivedAttachment were cleaned up, despite being
still referenced in live Messages and Attachments.

Switch from `.exclude(messages=None).exclude(scheduled_messages=None)`
to `.exclude(messages=None, scheduled_messages=None)` which "OR"s
those conditions appropriately.

Pull the relevant test into its own file, and expand it significantly
to cover this, and other, corner cases.
2023-08-06 13:40:02 -07:00
Alex Vandiver 0f918d9071 retention: Do not archive attachments with scheduled messages. 2023-08-06 13:40:02 -07:00
Anders Kaseorg 733083c65d ruff: Collapse short multi-line import statements.
isort did this by default, though it’s unclear whether that was
intended; see https://github.com/astral-sh/ruff/issues/4153.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-02 17:41:41 -07:00
Anders Kaseorg c419c6369e users: Fix TypedDict name for get_accounts_for_email return.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-02 17:37:30 -07:00
Anders Kaseorg e932e2ce52 ruff: Fix UP032 Use f-string instead of `format` call.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-02 15:58:55 -07:00
Steve Howell 3f14e467fb user groups: Test query counts for adding group members.
The most expensive thing for adding user groups is sending
all the notification messages, but we at least want to make
sure that the basic stuff runs in constant time.
2023-07-25 23:08:52 -07:00
Steve Howell 61a9f701bd cache: Use a single cache entry for cross-realm bots.
The cross-realm bots rarely change, and there are only
a few of them, so we just query them all at once and
put them in the cache.

Also, we put the dictionaries in the cache, instead of
the user objects, since there is nothing time-sensitive
about the dictionaries, and they are small. This saves
us a little time computing the avatar url and things
like that, not to mention marshalling costs.

This commit also fixes a theoretical bug where we would
have stale cache entries if somebody somehow modified
the cross-realm bots without bumping KEY_PREFIX.

Internally we no longer pre-fetch the realm objects for
the bots, but we don't get overly precise about picking
individual fields from UserProfile, since we rarely hit
the database and since we don't store raw ORM objects
in the cache.

The test diffs make it look like we are hitting the
cache an extra time, but the tests weren't counting
bulk fetches.  Now we only use a single key for all
bots rather a key per bot.
2023-07-25 23:08:52 -07:00
Steve Howell 0c92879f2a cross realm bots: Eliminate bulk_get_users confusion.
The bulk_get_users() function was only being used to
get cross-realm bots.

It appears that it was introduced in
f02e5b90f6 for that
specific use case.

Now we make the function more specific and test it more
accurately.

We also eliminate a lot of janky code and comments,
including some code that never had test coverage.

Incidentally, it appears that we did not have any code
to invalidate the cache keys here, and that is still
the case. In practice I assume people rarely
re-configure their cross-realm bots unless they are
upgrading the server, and then KEY_PREFIX comes into
play. 25fd4c5508 seems
to have caused that hopefully harmless regression.

A further step will be to make this cache more coarse,
since there are only a few cross-realm bots. The next
commit will hopefully simplify the code and address the
validation pitfall.
2023-07-25 23:08:52 -07:00
Ujjawal Modi fbcc3b5c84 user_groups: Rename `can_mention_group_id` parameter.
Earlier the API endpoints related to user_group accepts and returns a
field `can_mention_group_id` which represents the ID
of user_group whose members can mention the group.

This commit renames this field to `can_mention_group`.
2023-07-25 18:33:04 -07:00
Ujjawal Modi c8bcb422f5 streams: Rename `can_remove_subscribers_group_id` parameter.
Earlier the API endpoints related to streams accepts and returns a
field `can_remove_subscribers_group_id` which represents the ID
of user_group whose members can remove subscribers from stream.

This commit renames this field to `can_remove_subscribers_group`.
2023-07-25 18:33:04 -07:00
Zixuan James Li fe1a2f6f02 realm_playgrounds: Refactor error handling for validation on creation.
Previously, the view function was responsible for doing a first pass of
the validations done for RealmPlayground. It is no longer true now. This
refactors do_add_realm_playground to check_add_realm_playground and make
it responsible for validating the playground fields and doing error
handling for the ValidationError raised.
2023-07-24 17:40:59 -07:00
Zixuan James Li 000761ac0c realm_playgrounds: Replace url_prefix with url_template.
Dropping support for url_prefix for RealmPlayground, the server now uses
url_template instead only for playground creation, retrieval and audit
logging upon removal.

This does the necessary handling so that url_template is expanded with
the extracted code.

Fixes #25723.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-24 17:40:59 -07:00
Prakhar Pratyush af648833f2 notifications: Remove the stray notification trigger strings.
This commit removes the stray strings used to refer to
various types of notification triggers.

We use the attributes of the 'NotificationTriggers' class instead.
2023-07-24 11:02:14 -07:00
Zixuan James Li 9bc13bc93d realm_playgrounds: Populate url_template from legacy url_prefix.
We populate url_template by simply escaping "{" and "}" as well as
appending "{code}" to the end of the legacy url_prefix.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-24 10:29:40 -07:00
Zixuan James Li 641f60305d realm_playgrounds: Add url_template field.
As an intermediate step before we fully support url_template for realm
playgrounds, we populate url_template in the backend ensuring that all
the new entries will be validated. With a later backfilling migration,

we prepare the database such that all the records will have a valid URL
template.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-24 10:29:40 -07:00
Zixuan James Li 131729a06c realm_playgrounds: Remove unnecessary Any for kwargs.
Having a more precise type annotation helps with ensuring the migration
to use URL templates gets type checked.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-24 10:29:40 -07:00
Anders Kaseorg 3b09197fdf ruff: Fix RUF015 Prefer `next(...)` over single element slice.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-07-23 15:20:53 -07:00
Lauryn Menard 1cccdd8103 realm-settings: Make default_code_block_language empty string as default.
Updates the realm field `default_code_block_language` to have a default
value of an empty string instead of None. Also updates the web-app to
check for the empty string and not `null` to indicate no default is set.

This means that both new realms and existing realms that have no default
set will have the same value for this setting: an empty string.

Previously, new realms would have None if no default was set, while realms
that had set and then unset a value for this field would have an empty
string when no default was set.
2023-07-21 18:54:02 +02:00
Lauryn Menard 3255281a83 narrow: Support string and integer encoding of "id" operator.
Expands support for the message ID operand for id" operator to be either
a string or an integer. Previously, this operand was always validated as
a string.
2023-07-20 13:14:20 -07:00
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
Sahil Batra 3e09a21929 models: Pass realm and bot_owner as args to select_related.
This commit updates the select_related calls in queries to get
UserProfile objects in get_user, get_user_by_delivery_email,
get_user_profile_by_id, get_user_profile_by_id_in_realm and
get_user_profile_by_api_key functions to pass "realm" and
"bot_owner" as arguments to select_related call.

These functions are used in different parts of code to get
the UserProfile object and realm is accessed using the user
object at many places.

"bot_owner" field is also used in some places like to check
whether a bot can access a stream, to check whether a user
can change modify another user, in webhooks code to send the
message to the bot owner, and in tests as well. There can be
some places where the bot owner is not required and in most
such cases the code would only be accessed for human users,
which means the bot_owner will be null for these cases and
would avoid complexity and performance issues.

Note that previously, no arguments were passed to select_related
and thus only realm field was fetched during the query.
2023-07-20 10:44:39 -07:00
Anders Kaseorg 50e6cba1af ruff: Fix UP032 Use f-string instead of `format` call.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-07-19 16:14:59 -07:00
Steve Howell d19c1f7438 message fetching: Avoid duplicate cache layers.
This code removes a lot of complexity with very likely
positive overall impact on system performance and
negligible downside.

We already cache display recipients on a per-user
level, so there's no need for another cache layer on
top of that that keys them with recipient ids.

We avoid strange things where Alice/Bob and Bob/Charlie
get put into the top layer cache and then we still have
a cache miss on Alice/Charlie despite the lower level
cache being able to support per-user lookups.

This change does introduce an extra database round trip
if any of our messages have a huddle, but the query is
extremely cheap, and we can always try to cache that
function more directly or try to re-use some of our
other huddle-based caches.

As part of this, we clean up the names for the
lower-level per-user cache of display recipients, and
we simplify the cache keys.

We also stop passing in a full Recipient object to the
`bulk_get_huddle_user_ids` functions.

The local impact of this change should be easy to
measure (at least approximately), since we use this
function every time a user gets messages via the
/messages endpoint.
2023-07-19 11:07:33 -07:00
Steve Howell 03557a5568 huddles: Find huddle user ids more efficiently.
We restrict the columns, avoid quadratic looping,
and don't bother with order_by.

We also return the user ids (per recipient) as
sets, since that's how the only caller uses the
info (albeit implicitly via set.union accepting
a list).
2023-07-19 11:07:33 -07:00
Alex Vandiver b188e6fa04 management: Add a reactivate-stream command.
Fixes #601.
2023-07-17 17:42:54 -07:00
Prakhar Pratyush 21a5818765 mention: Soft-reactivate users receiving @topic mention notifications.
The long-term idle topic participants are soft-reactivated
after email/push notifications are sent due to @topic mention.

The reason being that, generally, @topic mentions are going to
reach a small set of users who have a decent chance of being
reactivated by the notifications.
2023-07-17 09:39:24 -07:00
Prakhar Pratyush 4c9d26ce17 mention: Send notifications for @topic wildcard mentions.
This commit completes the notifications part of the @topic
wildcard mention feature.

Notifications are sent to the topic participants for the
@topic wildcard mention.
2023-07-17 09:39:24 -07:00
Steve Howell 67cdf1a7b4 emojis: Use get_emoji_data.
The previous function was poorly named, asked for a
Realm object when realm_id sufficed, and returned a
tuple of strings that had different semantics.

I also avoid calling it duplicate times in a couple
places, although it was probably rarely the case that
both invocations actually happened if upstream
validations were working.

Note that there is a TypedDict called EmojiInfo, so I
chose EmojiData here.  Perhaps a better name would be
TinyEmojiData or something.

I also simplify the reaction tests with a verify
helper.
2023-07-17 09:35:53 -07:00
Steve Howell b742f1241f realm emoji: Use a single cache for all lookups.
The active realm emoji are just a subset of all your
realm emoji, so just use a single cache entry per
realm.

Cache misses should be very infrequent per realm.

If a realm has lots of deactivated realm emoji, then
there's a minor expense to deserialize them, but that
is gonna be dwarfed by all the other more expensive
operations in message-send.

I also renamed the two related functions.  I erred on
the side of using somewhat verbose names, as we don't
want folks to confuse the two use cases. Fortunately
there are somewhat natural affordances to use one or
the other, and mypy helps too.

Finally, I use realm_id instead of realm in places
where we don't need the full Realm object.
2023-07-17 09:35:53 -07:00
Zixuan James Li e8a6f6a313 integrations: Fix broken screenshots configuration.
Along with the fix, we add a test case to ensure that this never happens
again.
2023-07-17 09:23:01 -07:00
Zixuan Li a0cf624eaa
migrations: Backfill extra_data_json for audit log entries.
This migration is reasonably complex because of various anomalies in existing
data.

Note that there are cases when extra_data does not contain data that is
proper json with possibly single quotes. Thus we need to use
"ast.literal_eval" to cover that.

There is also a special case for "event_type == USER_FULL_NAME_CHANGED",
where extra_data is a plain str. This event_type is only used for
RealmAuditLog, so the zilencer migration script does not need to handle
it.

The migration does not handle "event_type == REALM_DISCOUNT_CHANGED"
because ast.literal_eval only allow Python literals. We expect the admin
to populate the jsonified extra_data for extra_data_json manually
beforehand.

This chunks the backfilling migration to reduce potential block time.

The migration for zilencer is mostly similar to the one for zerver; except that
the backfill helper is added in a wrapper and unrelated events are
removed.

**Logging and error recovery**

We print out a warning when the extra_data_json field of an entry
would have been overwritten by a value inconsistent with what we derived
from extra_data. Usually this only happens when the extra_data was
corrupted before this migration. This prevents data loss by backing up
possibly corrupted data in extra_data_json with the keys
"inconsistent_old_extra_data" and "inconsistent_old_extra_data_json".
More roundtrips to the database are needed for inconsistent data, which are
expected to be infrequent.

This also outputs messages when there are audit log entries with decimals,
indicating that such entries are not backfilled. Do note that audit log
entries with decimals are not populated with "inconsistent_old_extra_data_*"
in the JSONField, because they are not overwritten.

For such audit log entries with "extra_data_json" marked as inconsistent,
we skip them in the migration.  Because when we have discovered anomalies in a
previous run, there is no need to overwrite them again nesting the extra keys
we added to it.

**Testing**

We create a migration test case utilizing the property of bulk_create
that it doesn't call our modified save method.

We extend ZulipTestCase to support verifying console output at the test
case level. The implementation is crude but the use case should be rare
enough that we don't need it to be too elaborate.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-15 09:43:23 -07:00
Sahil Batra 75b61a8261 streams: Send stream creation events when subscribing guests.
We did not send the stream creation events when subscribing
guests to public streams while we do send them when subscribing
non-admin users to private streams.

This commit adds code to send the stream creation events when
subscribing guests to public streams, so the clients can know
that the stream exists and fixes the bug where client tries
to process a subscription add event for a stream which it does
not know about.
2023-07-13 14:04:51 -07:00
Zixuan James Li e9e18454d2 user_groups: Populate membership audit logs during realm creation.
This tracks user group membership changes when the realm is first set
up, either through an import or not. This happens when we add users to
the system user groups by their roles.

For an imported realm, we do extra handling when the data doesn't include
user groups. This gets audited as well.
2023-07-13 11:55:38 -07:00
Alex Vandiver d87895a3ef missed-message: Merge before calling handle_missedmessage_emails.
The MissedMessage queue worker is the single callsite of
`handle_missedmessage_emails`, which immediately transforms the list
of events into a dict keyed by message-id.

Skip the intermediate list step, and use defaultdict and a dataclass
to simplify and make explicit the pieces.  This removes the unused
user_profile_id and message_id pieces of the data structure.
2023-07-13 11:50:42 -07:00
Prakhar Pratyush 0891f9f65a mention: Determine @topic mention during message rendering.
This commit adds a boolean field `mentions_topic_wildcard`
to the `MessageRenderingResult` dataclass.

The field is set to true only if message rendering determines
the message has an actual topic wildcard mention in it (and not,
e.g., topic wildcard mention syntax inside a code block).

The rendered content for topic wildcard mention is
'<span class="topic-mention">{wildcard}</span>'.

The 'topic-mention' class is the identifier for the wildcard
mention being a topic wildcard mention.

We don't use 'data-user-id="*"' and "user-mention" class for
topic wildcard mentions and eventually plan to remove them for
stream wildcard mentions too in a separate mini-project.
2023-07-13 11:34:48 -07:00
Prakhar Pratyush 806d8f2dc7 test_markdown: Merge similar tests into a single test case.
This prep commit merges separate tests for '**@all**',
'**@stream**' and '**@everyone**' stream wildcard mentions
into a single test named 'test_mention_stream_wildcard'.

Similarly, it merges separate tests for '@all', '@stream',
and '@everyone' stream wildcard mentions into a single test
named 'test_mention_at_stream_wildcard'.

The aim is to finally have two separate tests for stream and
topic wildcard mentions (when we introduce topic wildcards)
instead of having separate tests for each mention text
(i.e. all, everyone, stream, topic).
2023-07-13 11:34:48 -07:00
Prakhar Pratyush c0c30bc5f7 topic_mentions: Fetch users to be notified of @topic mentions.
This commit adds the 'topic_wildcard_mention_user_ids' and
'topic_wildcard_mention_in_followed_topic_user_ids'
attributes to the 'RecipientInfoResult' dataclass.

Only topic participants are notified of @topic mentions.

Topic participants are anyone who sent a message to a topic
or reacted to a message on the topic.

'topic_wildcard_mention_in_followed_topic_user_ids' stores the
ids of the topic participants who follow the topic and have
enabled the wildcard mention notifications for followed topics.

'topic_wildcard_mention_user_ids' stores the ids of the topic
participants for whom 'user_allows_notifications_in_StreamTopic'
with setting 'wildcard_mentions_notify' returns True.
2023-07-13 11:34:48 -07:00
Prakhar Pratyush 1df63ed448 mention: Add 'has_topic_wildcards' to 'MentionData'.
This commit adds a 'has_topic_wildcards' instance variable
to the 'MentionData' class for the detection of
- possible topic wildcards mentions.

Fixes part of #22829.

Co-authored-by: Prakhar Pratyush <prakhar841301@gmail.com>
Co-authored-by: orientor <aditya.verma@students.iiit.ac.in>
2023-07-13 11:34:48 -07:00
Prakhar Pratyush 3f6b41e4be test_notifications: Update tests to cover the corner case properly.
This commit updates the existing tests in 'test_email_notifications'
and 'test_push_notifications' to properly configure user settings
and visibility policies before running the actual tests.

Earlier, the tests were passing, but the corner case expected
to be covered wasn't covered.

This should have been included in
d80779435a.
2023-07-13 11:34:48 -07:00
Prakhar Pratyush 2869de8026 test_notifications: Remove unnecessary comments.
These comments should not have been included in
a8fd9eb701.

We covered the case "Private message should soft reactivate
the user" earlier in the test. So the comment was rightly added
there.

During stream wildcard or group mention, no such personal mention
is involved; hence, the comments are not needed.
2023-07-13 11:34:48 -07:00
Prakhar Pratyush 2b42df4ef1 mention: Replace 'wildcard' with 'stream_wildcard'.
This is a prep commit to replace 'wildcard' with 'stream_wildcard'.

This wasn't included in 179d5cb because we didn't decide to
use a different rendered_content for topic wildcard mention,
i.e., ''<span class="user-mention topic-mention">{wildcard}</span>'.

Our intention was not to create separate tests for both stream
and topic wildcard mentions, as they were expected to have the
same rendered content format.
2023-07-13 11:34:48 -07:00
nimish c238327899 settings: Change "Display settings" to "Preferences".
This includes changing the URL to #settings/preferences, with a
transparent redirect so that existing links, like the one from Welcome
Bot, continue to work.
2023-07-12 07:09:03 -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
abdullahm1 5a90f9c404 tests: Use time_machine for testing scheduled message delivery. 2023-07-11 17:34:58 -07:00
Lauryn Menard 3dfdbbc775 welcome-emails: Separate followup_day1 email from other welcome emails.
The initial followup_day1 email confirms that the new user account
has been successfully created and should be sent to the user
independently of an organization's setting for send_welcome_emails.

Here we separate out the followup_day1 email into a separate function
from enqueue_welcome_emails and create a helper function for setting
the shared welcome email sender information.

The followup_day1 email is still a scheduled email so that the initial
account creation and log-in process for the user remains unchanged.

Fixes #25268.
2023-07-11 14:15:52 -07:00
Lauryn Menard 0e1acd595b welcome-emails: Use followup_day2 for scheduled email tests.
The followup_day2 email is scheduled with a delay as a welcome email
and is therefore more likely to exist as a scheduled email in these
deactivation cases.
2023-07-11 14:15:52 -07:00
Lauryn Menard c323afd9d7 test-example: Revise comment with number of emails generated.
Updates comment to not include the number of emails generated so
that it doesn't need to be updated every time a new email is added.
The current count in the comment is already out-of-date.
2023-07-11 14:15:52 -07:00
Zixuan James Li 84723654c8 webhooks: Use 200 status code for unknown events.
Because the third party might not be expecting a 400 from our
webhooks, we now instead use 200 status code for unknown events,
while sending back the error to Sentry. Because it is no longer an error
response, the response type should now be "success".

Fixes #24721.
2023-07-11 13:51:37 -07:00
Sahil Batra 2e4f7f6336 user_groups: Remove "@" from name of role-based system groups.
This commit removes "@" from name of role-based system groups
since we have added a restricion on having user group names
starting with "@" in the previous commit as they look odd in
mention syntax.

We also add a migration in this commit to update the name of
role-based system groups in existing realms to remove "@"
from the name. This migration also updates the names of
non-system user groups by removing the invalid prefixes
from their names and if there is a group already with that
name, we insted name the group as "group:{group_id}".

Fixes #26148.
2023-07-11 13:46:02 -07:00
Sahil Batra 929bf1243e user_groups: Disallow certain prefixes in group name.
We do not allow user group names to start with "@", "role:",
"user:", "stream:" and "channel:".

Group names starting with "@" look odd in mentions and
"role:", "user:" and "stream:" prefixes are reserved for
system groups which will be used in the new groups-based
permission model. We do not allow "channel:" prefix for
now just to be safe in a case where we use it instead of
"stream:" prefix for stream based groups in future.

Fixes part of #26148.
2023-07-11 13:46:02 -07:00
Sahil Batra ea3a7a9e6f user_groups: Add API restrictions for long user group names.
Previously we had database level restriction on length of
user group names. Now we add the same restriction to API
level as well, so we can return a better error response.
2023-07-11 13:46:02 -07:00
Steve Howell 89381a8072 cache: Eliminate get-stream-by-name cache.
We remove the cache functionality for the
get_realm_stream function, and we also change it to
return a thin Stream object (instead of calling
select_related with no arguments).

The main goal here is to remove code complexity, as we
have been prone to at least one caching validation bug
related to how Realm and UserGroup interact. That
particular bug was more theoretical than practical in
terms of its impact, to be clear.

Even if we were to be perfectly disciplined about only
caching thin stream objects and always making sure to
delete cache entries when stream data changed, we would
still be prone to ugly situations like having
transactions get rolled back before we delete the cache
entry. The do_deactivate_stream is a perfect example of
where we have to consider the best time to unset the
cache. If you unset it too early, then you are prone to
races where somebody else churns the cache right before
you update the database. If you set it too late, then
you can have an invalid entry after a rollback or
deadlock situation. If you just eliminate the cache as
a moving part, that whole debate is moot.

As the lack of test changes here indicates, we rarely
fetch streams by name any more in critical sections of
our code.

The one place where we fetch by name is in loading the
home page, but that is **only** when you specify a
stream name. And, of course, that only causes about an
extra millisecond of time.
2023-07-11 13:45:40 -07:00
Steve Howell 046e4c715b cache: Use DB for all bulk get-stream-by-name queries.
This changes bulk_get_streams so that it just uses the
database all the time.  Also, we avoid calling
select_related(), so that we just get back thin and
tidy Stream objects with simple queries.

About not caching any more:

It's actually pretty rare that we fetch streams by name
in the main application. It's usually API requests that
send in stream names to find more info about streams.

It also turns out that for large queries (>= ~30 rows
for my measurements) it's more efficent to hit the
database than memcached. The database is super fast at
scale; it's just the startup cost of having Django
construct the query, and then having the database do
query planning or whatever, that slows us down. I don't
know the exact bottleneck, but you can clearly measure
that one-row queries are slow (on the order of a full
millisecond or so) but the marginal cost of additional
rows is minimal assuming you have a decent index (20
microseconds per row on my droplet).

All the query-count changes in the tests revolve around
unsubscribing somebody from a stream, and that's a
particularly odd use case for bulk_get_streams, since
you generally unsubscribe from a single stream at a
time. If there are some use cases where you do want to
unsubscribe from multiple streams, we should move
toward passing in stream ids, at least from the
application. And even if we don't do that, our cost for
most queries is a couple milliseconds.
2023-07-11 13:45:40 -07:00
Zixuan James Li 3349ac9f86 user_groups: Audit UserGroup group based setting changes.
This add audit log entries when any group based setting of a user group
is updated. We store both the old and new values in extra_data, along
with the name of that setting. Entries populated during user group creation
are hardcoded to track "can_mention_group".

Potentially we can adjust "set_defaults_for_group_settings" so that it
populates realm audit logs with it, but that is out of scope for this change.

We use an atomic transaction so that the audit logs are committed
together with the updates.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Zixuan James Li 4d0b7fe682 user_groups: Audit UserGroup properties changes.
This add audit log entries when the name or description of a user group
is updated. We store both the old and new values in extra_data. We wrap
the functions inside an atomic transaction so that the audit logs and
the updates are committed together.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Zixuan James Li 3035854dca user_groups: Audit UserGroup supergroup memberships changes.
This is mostly the same as tracking subgroup changes, except that now
modified_user_group is the subgroup.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Zixuan James Li ad698d597a user_groups: Audit UserGroup subgroup memberships changes.
It's worth noting that instead of adding another field to the
RealmAuditLog model, we store the modified subgroup ids in extra_data as
a JSON encoded dict with the key "subgroup_ids". We don't create audit
log entries for supergroup changes at this point.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Zixuan James Li 44781ddfa9 user_groups: Audit UserGroup memberships changes.
This also add audit log entries during user creation and role change,
because we modify system group memberships there.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Zixuan James Li 63f5936207 user_groups: Audit UserGroup creation.
We also create RealmAuditLog entries for the initial memberships that
get added along with the creation of a UserGroup. System user groups are
not created with members so no audit logs are populated for that.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-07-11 08:56:55 -07:00
Steve Howell b31bbc6148 signup: Clean up add_new_user_history.
Various cleanups:

    * clean up comments
    * improve names for constants and variables
    * express first ORM query as a single statement
    * use set differences to simplify logic
    * avoid all the reversing churn
    * avoid early-exit idiom since this function is so small

Note that it's plausible that we should just combine the two
queries and let the database exclude the already-used ids,
but that felt a little risky for now.  As I mentioned on
Zulip, I think the one-week window has dubious value, but
I am biased by having wasted time chasing down a test
flake related to the time window.
2023-07-10 13:41:28 -07:00
Steve Howell bc3afe9127 default stream groups: Make deleting streams efficient.
This pulls one query out the loop, and then it makes
another query a bulk query, and then it finally eliminates
an unnecessary query at the end.
2023-07-10 13:41:28 -07:00
Steve Howell 87d1208d53 tests: Improve test for default stream groups. 2023-07-10 13:41:28 -07:00
Steve Howell 8894ff89ac signup: Extract set_up_streams_for_new_human_user.
We extract code from process_new_human_user with
no modifications.

This has all the best outcomes of extracting a function:

    * better profile info
    * easier to test for query counts (signup gets real noisy)
    * simplifies a long, messy function

It has no real drawbacks, since the helper function doesn't need
to pass back any intermediate state to the parent for the rest
of what the parent does.

When you profile test_signup and test_invite, with a decent
sample size, the set_up_streams_for_new_human_user function
does about 20% of the work for process_new_human_user, which
is a lot considering that most tests don't create a ton of
pre-registered or default streams.
2023-07-10 13:41:28 -07:00
Steve Howell d6ef94f63f page load: Improve default_streams performance.
At least as measured by test_events.py, which has over 1000
calls to fetch initial data for page loads, this should
be about a 10% improvement in how much time the server
spends fetching data.

We mostly avoid a select_related() query that did this nastiness:

    INNER JOIN "zerver_realm" ON ("zerver_stream"."realm_id" = "zerver_realm"."id")
    INNER JOIN "zerver_usergroup" ON ("zerver_stream"."can_remove_subscribers_group_id" = "zerver_usergroup"."id")
    INNER JOIN "zerver_realm" T4 ON ("zerver_usergroup"."realm_id" = T4."id")
    INNER JOIN "zerver_usergroup" T5 ON ("zerver_usergroup"."can_mention_group_id" = T5."id")
    INNER JOIN "zerver_realm" T6 ON (T5."realm_id" = T6."id")
    INNER JOIN "zerver_usergroup" T7 ON (T5."can_mention_group_id" = T7."id")
    INNER JOIN "zerver_realm" T8 ON (T7."realm_id" = T8."id")
    INNER JOIN "zerver_usergroup" T9 ON (T7."can_mention_group_id" = T9."id")
    INNER JOIN "zerver_realm" T10 ON (T9."realm_id" = T10."id")
    INNER JOIN "zerver_usergroup" T11 ON (T9."can_mention_group_id" = T11."id")
    WHERE "zerver_stream"."id" IN (SELECT U0."stream_id" FROM "zerver_defaultstream" U0 WHERE U0."realm_id" = 2

Future commits will address the codepath for creating users.
2023-07-10 13:41:28 -07:00
Steve Howell 763b5e0741 default streams: Extract library functions.
I created zerver/lib/default_streams.py, so that various
views and events.py don't have to awkwardly reach into
an "actions" file.

I copied over two functions verbatim from actions/default_streams.py:

    get_default_streams_for_realm
    streams_to_dicts_sorted

The latter only remains as an internal detail in the new library.

I also created two new helpers:

    get_default_stream_ids_for_realm:

        This is both faster and easier to use in all the places
        where we only need to get a set of default stream ids.

    get_default_streams_for_realm_as_dicts:

        This just wraps the prior calls to
        streams_to_dicts_sorted(get_default_streams_for_realm(...)),
        and it doesn't yet address the slowness of the underlying
        code.

        All the "real" code should be functionally the same.

        In a few tests I now use this wrapper instead of
        calling get_default_streams_for_realm, just to get
        slightly deeper coverage.
2023-07-10 13:41:28 -07:00
Lauryn Menard d84fd73db4 markdown-processor: Update insertion_index check for multiple classes.
Updates find_proper_insertion_index to check for the inline image
classes as matching at least one of the classes in the element's
attrib["class"] so that cases where an inline preview image has
multiple classes, like YouTube video previews, will have the
correct insertion index.

Fixes #26186.
2023-07-07 11:07:45 -04:00
Alex Vandiver ff53ee8e28 markdown: Only attempt to adjust /wiki/File: paths on Wikipedia. 2023-07-06 17:50:25 -07:00
Lalit 46b582689a tests: Improve automated tests for submessages.
Added an additional test case to `test_submessages.py` for testing the
message object containing `submessages` meta data.

Previous to this commit we were never validating the `submessage` schema
in the `message` objects.

Fixes #25896.
2023-07-06 16:35:46 -07:00
arghyadeep10 1808cdec90 uploads: Improve file not found message.
It replaces the "File not found." text with:
"This file does not exist or has been deleted."

At present when a file is deleted it results in a confusing
experience when looking at the "File not found." message.
In order to clarify the situation is not a bug, the message
has been replaced with a better alternative.

Fixes part of Issue #23739.
2023-07-06 09:32:41 -07:00
Prakhar Pratyush 179d5cb37d mention: Replace 'wildcards' with 'stream_wildcards'.
This prep commit replaces the 'wildcard' keyword in the codebase
with 'stream_wildcard' at some places for better readability, as
we plan to introduce 'topic_wildcards' as a part of the
'@topic mention' project.

Currently, 'wildcards = ["all", "everyone", "stream"]' which is an
alias to mention everyone in the stream, hence better renamed as
'stream_wildcards'.

Eventually, we will have:
'stream_wildcard' as an alias to mention everyone in the stream.
'topic_wildcard' as an alias to mention everyone in the topic.
'wildcard' refers to 'stream_wildcard' and 'topic_wildcard' as a whole.
2023-07-03 22:03:17 -07:00
Prakhar Pratyush d80779435a tests: Add the missing tests.
This commit adds the missing tests for
'followed_topic_wildcard_mention'.

These tests should have been included in
b052c8980e.
2023-07-03 22:03:17 -07:00
Prakhar Pratyush 0bf6eb6786 notifications: Fix 'get_gcm_alert' and 'get_apns_alert_subtitle'.
The 'get_gcm_alert' and 'get_apns_alert_subtitle' functions
don't include the case when the trigger is
'NotificationTriggers.FOLLOWED_TOPIC_WILDCARD_MENTION'.

This commit updates the functions to include
'NotificationTriggers.FOLLOWED_TOPIC_WILDCARD_MENTION'.
2023-07-03 22:03:17 -07:00
Prakhar Pratyush 5f6dd83696 notifications: Fix the if/elif order in the manage_preferences block.
The emails sent for missed messages have a text at the bottom
explaining the reason why the email was sent.

This commit reorders the conditional statements in the email
template to align with the trigger priority order defined
in the 'get_email_notification_trigger'.
2023-07-03 22:03:17 -07:00
Alex Vandiver e2847790b6 upload: Provide a default upload file name, rather than 500. 2023-07-03 21:51:58 -07:00
Steve Howell af11ddb3cf doc tests: Mock html_to_text.
This shaves a couple seconds off an expensive test.
2023-07-02 16:18:24 -07:00
Steve Howell f7614e7109 url tests: Mock out html_to_text.
This makes the test about 3s faster, and we actually do
more meaningful checking than before.
2023-07-02 16:18:24 -07:00
Steve Howell c94bbfbc7a url tests: Split out expensive test for help pages.
It takes about 31ms per page on my box, but 191
help pages adds up quickly. I am not sure how to
optimize this test, but it will be a good litmus
test for a future better markdown processor.
2023-07-02 16:18:24 -07:00
Steve Howell c5ea79b9a4 doc tests: Create dedicated zephyr test.
This did not speed up the tests as much as I expected,
but it certainly makes the code easier to read, and
Tim is pretty confident that the zephyr logic is
fairly stable, so it's sufficient to test it on a
subset of representative urls.
2023-07-02 16:18:24 -07:00
Steve Howell ae9303ab3f doc tests: Remove landing_missing_strings.
dbe930394f changed the
"missing string" from "Log in" to "xyz" for some
unknown reason.  The current code makes no sense.

Also, even the original test code here had the common
pitfall of only testing one side of the condition.
Presumably if you are testing that a certain string
is missing in a landing-page scenario, then you also
want to check that it **does** exist in other
scenarios.  Otherwise, the flag would have been
named something more generic. Of course, I am mostly
guessing due to lack of comments.

If there is some test logic here that we need to
resurrect, then we should just write a custom test
for the /hello page rather than crufting up
all our helpers.
2023-07-02 16:18:24 -07:00
Steve Howell 9890f63153 doc tests: Clean up code related to robots.
This removes some confusing default boolean flags, and
it checks both sides of the do-you-want-to-allow-robots
condition, so it's more thorough.

For the two strange exceptions to the normal policy,
I now handle them together in the helper function with
a comment.

I also disentangle the logic to look for og tags from
the robot logic, and this should also lead to more
thorough testing.
2023-07-02 16:18:24 -07:00
Steve Howell 63f561d448 doc tests: Rename test for integration 404s.
The prior name was just strange.  This test could really
use a better comment explaining its purpose.

Also, presumably these pages don't always get 404s, so
we should really have the test exercise both conditions.
2023-07-02 16:18:24 -07:00
Steve Howell 447d9ebd1d doc tests: Handle expected strings more nicely.
This shaves a few seconds off the running time,
since we now consolidate content checks in one
of our loops.
2023-07-02 16:18:24 -07:00
Steve Howell 018634bbfd doc tests: Introoduce _is_landing_page helper.
This makes us correctly run landing page logic where we
didn't before, and, more importantly, lets us skip landing
page logic where we had been erroneously running it.

This speeds up my runs from 35s to 25s.
2023-07-02 16:18:24 -07:00
Sahil Batra 95f8ab1626 templates: Improve email confirmation page.
This commit updates the text on email confirmation page to
make it more clear what's going on and why the user needs
to check their email.

Fixes #25900.
2023-07-02 16:14:41 -07:00
Sahil Batra 6b2ca03174 user_groups: Add support to update can_mention_group setting.
This commit adds API support to update can_mention_group setting
of a user group.

Fixes a part of #25927.
2023-06-30 17:28:33 -07:00
Sahil Batra 4bea6ffaa8 user_groups: Add support to set can_mention_group during creation.
This commit adds API support to set can_mention_group while
creating a user group.

Fixes a part of #25927.
2023-06-30 17:28:33 -07:00
Sahil Batra 7aaf34fd7e message_edit: Check group mention permission when editing message.
This commit adds backend code to check whether a user is allowed
to mention a user group while editing a message as per
can_mention_group setting of that group.

Fixes a part of #25927.
2023-06-30 17:28:33 -07:00
Sahil Batra 1fdffaec73 message_send: Check group mention permission when sending message.
This commit adds backend code to check whether user has permission
to mention a group while sending message as per the can_mention_group
setting of the group.

Fixes a part of #25927.
2023-06-30 17:28:33 -07:00
Sahil Batra 2763f9b575 user_groups: Add can_mention_group setting.
This commit adds a new can_mention_group setting which will be
used to determine who can mention a particular group.

Fixes a part of #25927.
2023-06-30 17:28:33 -07:00
Steve Howell c4d8f501d6 narrow: Split out narrow_helpers.
This will make more sense as I get deeper into modernizing
how we accept narrows from users via the API and represent
the narrows in event queues.
2023-06-30 11:26:23 -07:00
Steve Howell c501621bb2 event tests: Make sure legacy narrow is passed along. 2023-06-30 11:26:23 -07:00
Steve Howell c38b72c014 narrow: Rename *narrow_filter to *narrow_predicate.
This is consistent with how we name similar functions on
the frontend, and "filter" is misleading when you are
not dealing with lists.
2023-06-30 11:26:23 -07:00
Steve Howell bee7166a86 doc tests: Improve check for number of /api endpoints.
I also add a better comment.
2023-06-29 12:40:23 -07:00
Steve Howell 0163da66eb doc tests: Eliminate redundant test.
We now check content for /api endpoints in the big test
that loops over every endpoint.
2023-06-29 12:40:23 -07:00
Steve Howell 6c23e4769d doc tests: Reduce work for test_api_doc_endpoints.
We eliminate 220 zephyr-related checks that are all fairly
expensive.

On my machine this test went from 46s to 23s.

Note that we still get coverage of the zephyr codepath
from other tests.
2023-06-29 12:40:23 -07:00
Steve Howell b196d5a2f0 doc tests: Test endpoints in sorted order.
I also distinguish between endpoints and urls a little
better.
2023-06-29 12:40:23 -07:00
Steve Howell 66a5c7cf4a doc tests: Split out zephyr helper.
(All the same code gets executed here, but in a slightly
different order.)

There is some code duplication between the two new
helper functions, but I didn't make the situation any
worse, and it's slightly non-trivial to consolidate
the logic. Hopefully the long term strategy is to remove
the zephyr checks or at least isolate a single test for
any specific zephyr quirks that we need to maintain.
2023-06-29 12:40:23 -07:00
Steve Howell 20583ec1d1 doc tests: Split out a couple tests.
There was no reason for this already extremely expensive
test to have two extra responsibilities.
2023-06-29 12:40:23 -07:00
Steve Howell cea5e67262 narrows: Use dataclasses in a couple internal functions.
This is a first step toward two goals:
    * support dictionary-like narrows when registering events
    * use readable dataclasses internally

This is gonna be a somewhat complicated exercise due to how
events get serialized, but fortunately this interim step
doesn't require any serious shims, so it improves the codebase
even if the long-term goals may take a while to get sorted
out.

The two places where we have to use a helper to convert narrows
from tuples to dataclasses will eventually rely on their callers
to do the conversion, but I don't want to re-work the entire
codepath yet.

Note that the new NarrowTerm dataclass makes it more explicit
that the internal functions currently either don't care about
negated flags or downright don't support them.  This way mypy
protects us from assuming that we can just add negated support
at the outer edges.

OTOH I do make a tiny effort here to slightly restructure
narrow_filter in a way that paves the way for negation support.

The bigger goal by far, though, is to at least support the
dictionary format.
2023-06-29 12:35:55 -07:00
Steve Howell d64d1c81a4 tests: Eliminate narrow.json fixture.
In 2484d870b4 I created tests
using a fixture called narrow.json.  I believe my intention
was to eventually use the fixture for similar tests on the
frontend, but that never happened.

Almost seven years later, I think it's time to just use
straightforward code in Python to test build_narrow_filter.
In particular, we want to move to dataclasses, so that would
create an addition nuisance for fixture-based tests.  The
fixture was already annoying in terms of being an extra moving
part, being hard to read, and not being type-safe.

In order to avoid typos, I mostly code-generated the new
Python code by instrumenting the old test:

                 narrow_filter = build_narrow_filter(narrow)
    +            print("###\n")
    +            print(f"narrow_filter = build_narrow_filter({narrow})\n")
                 for e in accept_events:
                     message = e["message"]
                     flags = e["flags"]
    @@ -610,6 +612,8 @@ class NarrowLibraryTest(ZulipTestCase):
                     if flags is None:
                         flags = []
                     self.assertTrue(narrow_filter(message=message, flags=flags))
    +                print(f"self.assertTrue(narrow_filter(message={message}, flags={flags},))")
    +            print()
                 for e in reject_events:
                     message = e["message"]
                     flags = e["flags"]
    @@ -618,6 +622,8 @@ class NarrowLibraryTest(ZulipTestCase):
                     if flags is None:
                         flags = []
                     self.assertFalse(narrow_filter(message=message, flags=flags))
    +                print(f"self.assertFalse(narrow_filter(message={message}, flags={flags},))")
    +            print()

I then basically pasted the output in and ran black to format it.
2023-06-29 12:35:55 -07:00