Commit Graph

45 Commits

Author SHA1 Message Date
Steve Howell a9271e7a99 performance: Cache stream lookups in MentionBackend.
This is useful when you subscribe a bunch of folks
to a stream and need to send them all PMs telling
them about the new subscription.
2021-12-30 11:28:15 -08:00
Steve Howell 4adcaf92f7 refactor: Attach get_stream_name_map to MentionData.
This diff looks slightly noisy, but the main chunk of
code that we moved here has the same logic as before,
and it just gets realm_id from MentionBackend now, instead
of having our markdown processor have to supply it.

We basically want MentionData to be the gatekeeper of
mention data, and then we delegate backend tasks to
MentionBackend.

Soon we will add a cache to MentionBacked, which will
justify this change a bit more.
2021-12-30 11:28:15 -08:00
Steve Howell 0359c083d1 refactor: Extract get_linkable_streams.
This is a one-liner with two purposes:

    * We want the comment to explain the business rule.

    * We want to just work in id space.
2021-12-30 11:28:15 -08:00
Steve Howell c4bd4496dd peformance: Cache user mentions for multiple PMs.
It's slightly annoying to plumb Optional[MentionBackend]
down the stack, but it's a one-time change.

I tried to make the cache code relatively unobtrusive
for the single-message use case.

We should be able to eliminate redundant stream queries
using similar techniques.

I considered caching at the level of rendering the message
itself, but this involves nearly as much plumbing, and
you have to account for the fact that several users on
your realm may have distinct default languages (French,
Spanish, Russian, etc.), so you would not eliminate as
many query hops. Also, if multiple streams were involved,
users would get slightly different messages based on
their prior subscriptions.
2021-12-30 11:28:15 -08:00
Steve Howell c6448263c3 refactor: Add MentionBackend.
We will eventually use this to avoid redundant
queries.

The diff is slightly noisy here, but there are no
logic changes.
2021-12-30 11:28:15 -08:00
Steve Howell a22f49bf83 refactor: Extract UserFilter.
This is setting us up for future commits.
2021-12-30 11:28:15 -08:00
Steve Howell ea252ab53e refactor: Convert FullNameInfo to a dataclass.
As part of this we no longer query for email, which
is a vestige of when we used emails to identify users
on the frontend.
2021-12-30 11:28:15 -08:00
Steve Howell df84892aad markdown: Convert DbData to a dataclass. 2021-12-30 11:28:15 -08:00
Steve Howell 4e551f8279 refactor: Introduce get_stream_name_map.
We only need a name -> id map, and the FullNameInfo
type was a lie.
2021-12-30 11:28:15 -08:00
Eeshan Garg 3714a30e63 stream notifications: Add helper for silent user mention syntax.
In many of our stream notification messages, we make use of the
same silent user mention syntax, the template for which was always
hardcoded. This commit adds a helper function that all relevant
callers can call to get the right syntax when mentioning users.

Thanks to Tim Abbott for this suggestion!
2021-12-07 14:53:50 -08:00
Sahil Batra 6ac9386a29 models: Add related_name to UserGroup and UserGroupMembership fields.
This commit adds related_name parameter to UserGroup.direct_members
such that we can use direct_groups instead of the default
usergroupmembership_set for getting all the groups of which the
user is direct member.

This commit also sets related_name of UserGroupMembership.user_group
and UserGroupMembership.user_profile to "+" which means that we will
not be having backward relations for these. This change is correct
since we would need to use the recursive queries to get all the
groups of a user and all the members of a group after we add the
subgroups concept in next commit. This leads to us using direct_members
field of UserGroup instead of usergroupmembership_set in mention code,
but this will soon be replaced with the recursive query function to
include subgroup's members as well.

Extracted this commit from #19866.

Authored-by : Anders Kaseorg <anders@zulip.com>
2021-10-13 10:08:06 -07:00
Sahil Batra 88346949b5 messages: Do not allow mentioning system user groups.
We do not allow mentioning system user groups for now
because this can lead to circumventing the wildcard
mention restrictions. It will be enabled once we add
a setting to control that.

This is implemented by just ignoring it as one of the
mentioned user group even if the message content
inlcudes the mention syntax for it and the message
is sent normally.

We still keep the for_mention parameter for accessing
user group while sending email and push notifications
as mentioning system user groups will be allowed in
future.
This commit also removes the test for email notifications
for system user groups as we are not allowing mentioning
them.

This commit is only for backend change as we already
exclude the system groups from mention typeaheads and
other UI.
2021-09-09 11:25:33 -07:00
Anders Kaseorg 3a6d44b691 mention: Simplify init_user_group_data using prefetch_related.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-08-05 09:20:34 -07:00
akshatdalton c507931ac8 refactor: Export non-markdown logic in mention.py. 2021-06-14 13:26:30 -07:00
akshatdalton 0245b590e9 markdown: Add support for user group silent mention.
Prior to this, we only supported direct mention to
the user groups. This commit extends that support
to silent mention for the user groups.
A related test case is also added.

Fixes: #11711.
2021-05-18 17:31:25 -07:00
akshatdalton f56fca308a mention: Refactor `USER_GROUP_MENTIONS_RE` and simplify its related code path.
Earlier, USER_GROUP_MENTIONS_RE was:
r"(?<![^\s\'\"\(,:<])@(\*[^\*]+\*)"

For the syntax: *foo*, this was unnecessarily capturing it as
*foo* and the extraction of `foo` was done using another helper
function: `extract_user_group`.

This is now changed as:
r"(?<![^\s\'\"\(,:<])@(\*(?P<match>[^\*]+)\*)"

and extraction of `foo` can be done just by using the named capture
group `match`.

This change also helps to simplify its related code path.
2021-05-18 17:31:25 -07:00
akshatdalton d5a36ac5e2 mention: Refactor `MENTIONS_RE` and simplify its related code path.
Earlier, MENTIONS_RE was:
r"(?<![^\s\'\"\(,:<])@(?P<silent>_?)(?P<match>\*\*[^\*]+\*\*)"

For the syntax: **foo**, this was unnecessarily capturing it as
**foo** and adding extra operation for the extraction of `foo`.

This is now changed as:
r"(?<![^\s\'\"\(,:<])@(?P<silent>_?)(\*\*(?P<match>[^\*]+)\*\*)"

and extraction of `foo` can be done just by using the named capture
group `match`.

This change also helps to simplify its related code path.
2021-05-18 17:31:25 -07:00
akshatdalton 738a676534 mention: Remove deprecated wildcard mention pattern from `MENTIONS_RE`.
Earlier wildcard mentions were used as: @all, @everyone, @stream.
This syntax is deprecated and we will no longer support
this syntax in future. See the commits:

1. 7a4c3c1a5c
2. b650b6b38c

When we started to use these syntaxes for wildcard mentions.
2021-05-18 17:31:25 -07:00
akshatdalton 9f6e6709d3 minor: Convert `user_group_mentions` to uppercase.
Following the convention, we use uppercase for
regex. Also, `user_group_mentions` is given a
conventional name ending with `*_RE`: `USER_GROUP_MENTIONS_RE`.
2021-05-18 17:31:25 -07:00
akshatdalton 0a01b1b28e minor: Convert `find_mentions` to uppercase.
Following the convention, we use uppercase for
regex. Also, `find_mentions` is given a
conventional name ending with `*_RE`: `MENTIONS_RE`.
2021-05-18 17:31:25 -07:00
Anders Kaseorg 6e4c3e41dc python: Normalize quotes with Black.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Anders Kaseorg 11741543da python: Reformat with Black, except quotes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Anders Kaseorg 365fe0b3d5 python: Sort imports with isort.
Fixes #2665.

Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.

Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start.  I expect this change will increase pressure for us to split
those files, which isn't a bad thing.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-11 16:45:32 -07:00
Rohitt Vashishtha 9174c636ce bugdown: Store if message has wildcards in MentionData.
We also switch the underlying exctact_mention_text method to use
a regular for loop, as well as make the related methods return
tuples of (names, is_wildcard). This abstraction is hidden from the
MentionData callers behind mention_data.message_has_wildcards().

Concerns #13430.
2019-12-02 12:12:35 -08:00
Anders Kaseorg becef760bf cleanup: Delete leading newlines.
Previous cleanups (mostly the removals of Python __future__ imports)
were done in a way that introduced leading newlines.  Delete leading
newlines from all files, except static/assets/zulip-emoji/NOTICE,
which is a verbatim copy of the Apache 2.0 license.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-08-06 23:29:11 -07:00
Rohitt Vashishtha 57b9991396 markdown: Change syntax of silent mentions ( _@person -> @_person). 2019-02-20 10:41:42 -08:00
Rohitt Vashishtha f993fdd480 markdown: Add _@**Name** syntax for silent mentions.
These mentions look like regular mentions except they do not
trigger any notification for the person mentioned. These are
primarily to be used when you make a bot take an action and
the bot mentions you, or when you quote a message that mentions
you.

Fixes #11221.
2019-01-16 16:01:06 -08:00
Rohitt Vashishtha 652477daea bugdown: Refactor name to mention_text in mention.py.
This commit renames some variables to make it clear that a mention's
text is not only the name of the user in all cases.
2018-11-07 10:02:53 -08:00
Aditya Bansal a68376e2ba zerver/lib: Change use of typing.Text to str. 2018-05-12 15:22:39 -07:00
Shubham Dhama b650b6b38c markdown: Add @stream as an alias for @all.
Fixes: #8930.
2018-04-09 16:35:14 -07:00
rht 3f4bf2d22f zerver/lib: Use python 3 syntax for typing.
Extracted from a larger commit by tabbott because these changes will
not create significant merge conflicts.
2017-11-21 20:56:40 -08:00
Umair Khan 636046aec9 user-groups: Add basic backend for UserGroup model.
This adds the data model and bugdown support for the new UserGroup
mention feature.

Before it'll be fully operational, we'll still need:
* A backend API for making these.
* A UI for interacting with that API.
* Typeahead on the frontend.
* CSS to make them look pretty and see who's in them.
2017-10-31 15:16:14 -07:00
rht f43e54d352 zerver/lib: Remove absolute_import. 2017-09-27 10:00:39 -07:00
Greg Price dcf8d2d9ac mention: Tiny tweak to get loop fusion.
It's unlikely to be of any real consequence, but this code bugged me
in that it makes a whole set before throwing it away to make nearly
the same set.

Sadly Python's comprehensions lack a way to write these cleanly as one
comprehension; but with no extra code complexity we can make the
temporary a genexp, which does the job.
2017-09-25 16:02:56 -07:00
neiljp (Neil Pilgrim) 4be2ada055 mypy: Amend mention.py to ensure return of Set[Text]. 2017-09-25 16:02:56 -07:00
Steve Howell 4e7fce60ee Add possible_mentions() to speed up rendering.
We now triage message content for possible mentions before
going to the cache/DB to get name info.  This will create an
extra data hop for messages with mentions, but it will save
a fairly expensive cache lookup for most messages.  (This will
be especially helpful for large realms.)

[Note that we need a subsequent commit to actually make the speedup
happen here, since avatars also cause us to look up all users in
the realm.]
2017-09-15 01:09:08 -07:00
Steve Howell 7a4c3c1a5c Make mentions regex more strict for all/everyone.
We only want `@all` and `@everyone` as shorthands.  For user
names we want askerisks: `@**Steve Howell**`.
2017-09-15 01:09:08 -07:00
Tim Abbott d2288154f6 bugdown: Fully remove mentions matching @name.
Given typeahed and the fact that this only worked if the person had a
full name that didn't contain whitespace, this side effect of the
original @shortname mentionfeature that we removed was experienced by
users as a bug.

Fixes #6142.
2017-08-16 11:18:09 -07:00
Robert Hönig 0917493588 mypy: Convert zerver/lib to use typing.Text. 2016-12-25 10:33:45 -08:00
Eklavya Sharma 744007f33f zerver/lib/bugdown/__init__.py: Fix string types.
Change important string constants from str to text_type.
Replace str by text_type in annotations where relevant.
2016-06-16 15:21:17 -07:00
Max 0f4673ae3b Add type annotation to mention.py, redis_utils.py, timestamp.py, user_agent.py
Some functions in models.py had input typed as int when they needed to be typed as datetime.datetime
2016-06-03 19:00:16 -07:00
Tim Abbott 68dcc760c3 Clean up some unused imports.
(imported from commit 0c5d8e2a55ba1b8909ba807fee3afe863dcdc226)
2013-11-04 11:51:17 -05:00
Luke Faraone 52309b5789 Enable absolute imports for non-third-party code where it was omitted previously
(imported from commit 34856ac32c6b94b614273a6fe46c87a314058d9b)
2013-10-25 14:13:30 -04:00
Leo Franchi 08ae641dd2 Pre-fetch data from the DB and hand to markdown thread
We want to avoid opening a DB connection in the markdown thread
as its DB connection might live for a long time

(imported from commit 7700b2ca793ee5e9add7f071b92f22a4bf576b3d)
2013-10-10 10:58:21 -04:00
Tim Abbott e111a2f9a5 [manual] Rename Django app from zephyr to zerver.
This needs to be deployed to both staging and prod at the same
off-peak time (and the schema migration run).

At the time it is deployed, we need to make a few changes directly in
the database:

(1) UPDATE django_content_type set app_label='zerver' where app_label='zephyr';
(2) UPDATE south_migrationhistory set app_name='zerver' where app_name='zephyr';

(imported from commit eb3fd719571740189514ef0b884738cb30df1320)
2013-08-06 07:39:36 -04:00