This commit adds a `getCategoryIdByName` helper function to the context in
which theme migrations are ran in. The purpose of this commit is to
allow themes which may have stored category names in theme settings to
migrate to objects typed theme settings which supports properties of
categories typed which stores the category ids in the value of the
property.
Automatically add `moderators` and `admins` auto groups to specific site settings.
In the new group-based permissions systems, we just want to check the user’s groups since it more accurately reflects reality
Affected settings:
- tag_topic_allowed_groups
- create_tag_allowed_groups
- send_email_messages_allowed_groups
- personal_message_enabled_groups
- here_mention_allowed_groups
- approve_unless_allowed_groups
- approve_new_topics_unless_allowed_groups
- skip_review_media_groups
- email_in_allowed_groups
- create_topic_allowed_groups
- edit_wiki_post_allowed_groups
- edit_post_allowed_groups
- self_wiki_allowed_groups
- flag_post_allowed_groups
- post_links_allowed_groups
- embedded_media_post_allowed_groups
- profile_background_allowed_groups
- user_card_background_allowed_groups
- invite_allowed_groups
- ignore_allowed_groups
- user_api_key_allowed_groups
- Add a "Skip tips" button to first notification tip
- Add a "Skip tips" button to the admin guide tip
- Fixes the timeline tip showing when no timeline was present
- Fixes post menu tip showing when no "..." button is present
- Adds system tests
- Marks each tip as seen as soon as it is displayed so that refreshing,
clicking outside, etc. won't show it again
- Change just above means we no longer need a MessageBus track
Co-authored-by: Bianca Nenciu <nbianca@users.noreply.github.com>
In #26122 we promoted all problem checks defined as class methods on AdminDashboardData to their own first-class ProblemCheck instances.
This PR continues that by promoting problem checks that are implemented as blocks as well. This includes updating a couple plugins that have problem checks.
This commit operates at three levels of abstraction:
1. We want to prevent user history rows from being unbounded in size.
This commit adds rails validations to limit the sizes of columns on
user_histories,
2. However, we don't want to prevent certain actions from being
completed if these columns are too long. In those cases, we truncate
the values that are given and store the truncated versions,
3. For endpoints that perform staff actions, we can further control
what is permitted by explicitly validating the params that are given
before attempting the action,
In AdminDashboardData we have a bunch of problem checks implemented as methods on that class. This PR absolves it of the responsibility by promoting each of those checks to a first class ProblemCheck. This way each of them can have their own priority and arbitrary functionality can be isolated in its own class.
Think "extract class" refactoring over and over. Since they were all moved we can also get rid of the @@problem_syms class variable which was basically the old version of the registry now replaced by ProblemCheck.realtime.
In addition AdminDashboardData::Problem value object has been entirely replaced with the new ProblemCheck::Problem (with compatible API).
Lastly, I added some RSpec matchers to simplify testing of problem checks and provide helpful error messages when assertions fail.
Avoid sending user emails if @ mentioning a staged user
Some cases, unknowingly mentioning a staged user would invite
them into topics, sending them an email about it.
There are a couple of reasons for this.
The first one is practical, and related to eager loading. Since /lib is not eager loaded, when the application boots, ProblemCheck["identifier"] will be nil because the child classes aren't loaded.
The second one is more conceptual. There turns out to be a lot of inter-dependencies between the part of the problem check system that live in /app and the parts that live in /lib, which probably suggests it should all go in /app.
This change creates a user setting that they can toggle if
they don't want to receive unread notifications when someone closes a
topic they have read and are watching/tracking it.
When we send a bookmark reminder, there is an option to delete
the underlying bookmark. The Notification record stays around.
However, if you want to filter your notifications user menu
to only bookmark-based notifications, we were not showing unread
bookmark notifications for deleted bookmarks.
This commit fixes the issue _going forward_ by adding the
bookmarkable_id and bookmarkable_type to the Notification data,
so we can look up the underlying Post/Topic/Chat::Message
for a deleted bookmark and check user access in this way. Then,
it doesn't matter if the bookmark was deleted.
Before this commit, we had a yarn package set up in the root directory and also in `app/assets/javascripts`. That meant two `yarn install` calls and two `node_modules` directories. This commit merges them both into the root location, and updates references to node_modules.
A previous attempt can be found at https://github.com/discourse/discourse/pull/21172. This commit re-uses that script to merge the `yarn.lock` files.
Co-authored-by: Jarek Radosz <jradosz@gmail.com>
Why this change?
Backfilling can take a long time on a site with many users. As a
result, the `DistriburedMutex` will warn in the logs when the block takes
more than 60 seconds to complete. We can increase the lock validity but
the method is currently only called from a job which has a
`cluster_concurrency` set to `1`. Therefore, it is actually not
necessary for us to hold a `DistributedMutex` here.
What does this change do?
1. Removes the distributed mutex and adds a comment about the risk of
calling the `SidebarSiteSettingsBackfiller#backfill!` method.a
2. Delete old sidebar category section links in batches for all users
to avoid a single long running query.
This commit includes several changes to make hashtags work when "lazy
load categories" is enabled. The previous hashtag implementation use the
category colors CSS variables, but these are not defined when the site
setting is enabled because categories are no longer preloaded.
This commit implements two fundamental changes:
1. load colors together with the other hashtag information
2. load cooked hashtag data asynchronously
The first change is implemented by adding "colors" to the HashtagItem
model. It is a list because two colors are returned for subcategories:
the color of the parent category and subcategory.
The second change is implemented on the server-side in a new route
/hashtags/by-ids and on the client side by loading previously unseen
hashtags, generating the CSS on the fly and injecting it into the page.
There have been minimal changes outside of these two fundamental ones,
but a refactoring will be coming soon to reuse as much of the code
and maybe favor use of `style` rather than injecting CSS into the page,
which can lead to page rerenders and indefinite grow of the styles.
There is an edge case where the following occurs:
1. The user sets a bookmark reminder on a post/topic
2. The post/topic is changed to a PM before or after the reminder
fires, and the notification remains unread by the user
3. The user opens their bookmark reminder notification list
and they can still see the notification even though they cannot
access the topic anymore
There is a very low chance for information leaking here, since
the only thing that could be exposed is the topic title if it
changes to something sensitive.
This commit filters the bookmark unread notifications by using
the bookmarkable can_see? methods and also prevents sending
reminder notifications for bookmarks the user can no longer see.
This commit introduces a new feature that allows theme developers to manage the transformation of theme settings over time. Similar to Rails migrations, the theme settings migration system enables developers to write and execute migrations for theme settings, ensuring a smooth transition when changes are required in the format or structure of setting values.
Example use cases for the theme settings migration system:
1. Renaming a theme setting.
2. Changing the data type of a theme setting (e.g., transforming a string setting containing comma-separated values into a proper list setting).
3. Altering the format of data stored in a theme setting.
All of these use cases and more are now possible while preserving theme setting values for sites that have already modified their theme settings.
Usage:
1. Create a top-level directory called `migrations` in your theme/component, and then within the `migrations` directory create another directory called `settings`.
2. Inside the `migrations/settings` directory, create a JavaScript file using the format `XXXX-some-name.js`, where `XXXX` is a unique 4-digit number, and `some-name` is a descriptor of your choice that describes the migration.
3. Within the JavaScript file, define and export (as the default) a function called `migrate`. This function will receive a `Map` object and must also return a `Map` object (it's acceptable to return the same `Map` object that the function received).
4. The `Map` object received by the `migrate` function will include settings that have been overridden or changed by site administrators. Settings that have never been changed from the default will not be included.
5. The keys and values contained in the `Map` object that the `migrate` function returns will replace all the currently changed settings of the theme.
6. Migrations are executed in numerical order based on the XXXX segment in the migration filenames. For instance, `0001-some-migration.js` will be executed before `0002-another-migration.js`.
Here's a complete example migration script that renames a setting from `setting_with_old_name` to `setting_with_new_name`:
```js
// File name: 0001-rename-setting.js
export default function migrate(settings) {
if (settings.has("setting_with_old_name")) {
settings.set("setting_with_new_name", settings.get("setting_with_old_name"));
}
return settings;
}
```
Internal topic: t/109980
No plugins or themes rely on anonymous_posting_min_trust_level so we
can just switch straight over to anonymous_posting_allowed_groups
This also adds an AUTO_GROUPS const which can be imported in JS
tests which is analogous to the one defined in group.rb. This can be used
to set the current user's groups where JS tests call for checking these groups
against site settings.
Finally a AtLeastOneGroupValidator validator is added for group_list site
settings which ensures that at least one group is always selected, since if
you want to allow all users to use a feature in this way you can just use
the everyone group.
* DEV: Add rake command to help detect dead settings
Some Site Settings may still exist but are no longer being used in the
core discourse code or in related plugins. This rake task will help
identify any unused (aka: dead) settings by using the `rg` command to
search for them.
You can execute the rake task by using this command:
`LOAD_PLUGINS=1 bin/rails "site_settings:find_dead"`
* Add env variable, apply feedback
This commit adds some system specs to test uploads with
direct to S3 single and multipart uploads via uppy. This
is done with minio as a local S3 replacement. We are doing
this to catch regressions when uppy dependencies need to
be upgraded or we change uppy upload code, since before
this there was no way to know outside manual testing whether
these changes would cause regressions.
Minio's server lifecycle and the installed binaries are managed
by the https://github.com/discourse/minio_runner gem, though the
binaries are already installed on the discourse_test image we run
GitHub CI from.
These tests will only run in CI unless you specifically use the
CI=1 or RUN_S3_SYSTEM_SPECS=1 env vars.
For a history of experimentation here see https://github.com/discourse/discourse/pull/22381
Related PRs:
* https://github.com/discourse/minio_runner/pull/1
* https://github.com/discourse/minio_runner/pull/2
* https://github.com/discourse/minio_runner/pull/3
In most cases, deleting a user from outside the review UI will also delete any pending reviewables for that user. This was not working in some cases, e.g. for reviewables created due to "fast typer" violations.
This was happening because UserDestroyer only automatically resolves flagged posts.
After this change, in addition to existing checks, look for ReviewablePost where the post was created by the user and reject them if present.
Our code assumed the content_range interval was inclusive, but they are open-ended due to Postgres' [discrete range types](https://www.postgresql.org/docs/current/rangetypes.html#RANGETYPES-DISCRETE), meaning [1,2] will be represented as [1,3).
It also fixes some flaky tests due to test data not being correctly setup and the registry not being resetted after each test.
When we receive the stream parameter, we'll queue a job that periodically publishes partial updates, and after the summarization finishes, a final one with the completed version, plus metadata.
`summary-box` listens to these updates via MessageBus, and updates state accordingly.
This commit removes any logic in the app and in specs around
enable_experimental_hashtag_autocomplete and deletes some
old category hashtag code that is no longer necessary.
It also adds a `slug_ref` category instance method, which
will generate a reference like `parent:child` for a category,
with an optional depth, which hashtags use. Also refactors
PostRevisor which was using CategoryHashtagDataSource directly
which is a no-no.
Deletes the old hashtag markdown rule as well.
This commit introduces the :push_notification event and deprecates :post_notification_alert.
The old :post_notification_alert event was not triggered when pushing chat notifications and did not respect when the user was in "do not disturb" mode.
The new event fixes these issues.
Context of this change:
There are two site settings which an admin can configured to set the
default categories and tags that are shown for a new user. `default_navigation_menu_categories`
is used to determine the default categories while
`default_navigation_menu_tags` is used to determine the default tags.
Prior to this change when seeding the defaults, we will filter out the
categories/tags that the user do not have permission to see. However,
this means that when the user does eventually gain permission down the
line, the default categories and tags do not appear.
What does this change do?
With this commit, we have changed it such that all the categories and tags
configured in the `default_navigation_menu_categories` and
`default_navigation_menu_tags` site settings are seeded regardless of
whether the user's visibility of the categories or tags. During
serialization, we will then filter out the categories and tags which the
user does not have visibility of.
We're seeing unhandled errors in production when web push notifications are failing with an SSL error. This is happening for a few users, but generating a large amount of log noise due to the sheer number of notifications.
This adds handling of SSL errors in two places:
1. In FinalDestination::HTTP, this is handled the same as a timeout error, and gives a chance to recover.
2. In PushNotificationPusher. This will cause the notification to retry a number of times, and if it keeps failing, disable push notifications for the user. (Existing behaviour.)
I wanted to wrap the SSL error in e.g. WebPush::RequestError, but the gem doesn't have request error handling, so didn't want to have the freedom patch diverge from the gem as well. Instead just propagating the raw SSL error.
When a type was disabled, the hashtag search _without_ a
term was erroring. This was because we weren't filtering
out the disabled types from types_in_priority_order first
like we were if there was a term provided.
This commit fixes that issue, and also makes it so
contexts_with_ordered_types and ordered_types_for_context
will only return hashtag types which are enabled.
Performing a `Delete User`/`Delete and Block User` reviewable actions for a
queued post reviewable from the `review.show` route results in an error
popup even if the action completes successfully.
This happens because unlike other reviewable types, a user delete action
on a queued post reviewable results in the deletion of the reviewable
itself. A subsequent attempt to reload the reviewable record results in
404. The deletion happens as part of the call to `UserDestroyer` which
includes a step for destroying reviewables created by the user being
destroyed. At the root of this is the creator of the queued post
being set as the creator of the reviewable as instead of the system
user.
This change assigns the creator of the reviewable to the system user and
uses the more approapriate `target_created_by` column for the creator of the
post being queued.
We need a nice way to only return some hashtag data
sources based on various site settings. This commit
adds an enabled? method that every hashtag data source
must implement. If this returns false the data source
will not be used at all for hashtag lookups or search.
Simplified query based on SiteSettings to join only relevant user_options rows.
In addition, index was added to 'watched_precedence_over_muted` column in `user_options` table to speed up query
* FEATURE: Inline topic summary. Cached version accessible to everyone.
Anons and non-members of the `custom_summarization_allowed_groups_map` groups can see cached summaries for any accessible topic. After the first 12 hours and if the posts to summarize have changed, allowed users clicking on the button will automatically re-generate it.
* Ensure chat summaries work and prevent model hallucinations when there are no messages.
In previous PR https://github.com/discourse/discourse/pull/22340 bug was introduced. Notifications were blocked when, even if topic was watched directly. New query is taking TopicUser into consideration.
In addition, in user interface, when `watched_precedence_over_muted` is not set, then value from SiteSetting should be displayed.
Recently, site setting watched_precedence_over_muted was introduced - https://github.com/discourse/discourse/pull/22252
In this PR, we are allowing users to override it. The option is only displayed when the user has watched categories and muted tags, or vice versa.
Recently, SQL query returning users who have muted category or tag were introduced, and it is causing performance issues.
It is much more effective to first get IDs of users who have CategoryUser/TagUsers related to specific topic and then in second query get relevant users.
Updates the interface for implementing summarization strategies and adds a cache layer to summarize topics once.
The cache stores the final summary and each chunk used to build it, which will be useful when we have to extend or rebuild it.
New setting which allow admin to define behavior when topic is in watched category and muted topic and vice versa.
If watched_precedence_over_muted setting is true, that topic is still visible in list of topics and notification is created.
If watched_precedence_over_muted setting is false, that topic is not still visible in list of topics and notification is skipped as well.
This PR splits up the preference that controls the count vs dot and destination of sidebar links, which is really hard to understand, into 2 simpler checkboxes:
The new preferences/checkboxes are off by default, but there are database migrations to switch the old preference to the new ones so that existing users don't have to update their preferences to keep their preferred behavior of sidebar links when this changed is rolled out.
Internal topic: t/103529.
This method is a huge footgun in production, since it calls
the Redis KEYS command. From the Redis documentation at
https://redis.io/commands/keys/:
> Warning: consider KEYS as a command that should only be used in
production environments with extreme care. It may ruin performance when
it is executed against large databases. This command is intended for
debugging and special operations, such as changing your keyspace layout.
Don't use KEYS in your regular application code.
Since we were only using `delete_prefixed` in specs (now that we
removed the usage in production in 24ec06ff85)
we can remove this and instead rely on `use_redis_snapshotting` on the
particular tests that need this kind of clearing functionality.
Communities can use sidebar or header dropdown, therefore navigation menu is a better name settings in 2 places:
- Old user sidebar preferences;
- Site setting about default tags and categories.
When we introduced unicode support in the regular expressions used in watched words (9a27803) we didn't realize the cost adding the `u` flag would be.
Turns out, it's pretty bad when you have lots of regular expressions to test. A customer had slightly less than 200 watched words, and it would freeze the browser for about 2s on the first check of those regular expressions (roughly 10ms per regular expression).
This commit introduces a new field (`word`) to the serialized watched words which is then converted to a very fast and cheap regular expression on the client-side. We use that regexp to quicly check whether a matcher is even worth trying so that we don't incure the cost of compiling the expensive unicode regexp.
This commit also busts the `WordWatcher` cache since we added a new field to be serialized.
One nice side effect of using `matchAll` instead of a `while / exec` loop is that the likeliness of having a bad regexp matching infinitely is vastly reduced 🙌
At the moment, PMs to groups with default notification level set to
`watching_first_post` do not generate "emailable" notifications. This happens
because, topic user notification level which is indirectly derived
from the group's default notification level is set to `tracking` if the
group's notification level happens to be `watching_first_post`.
This leads to a `group_message_summary` notification being created
instead of a `private_message` notification which results in no email
alerts being sent when a topic is created.
As this `watching_first_post` --> `tracking` switcheroo appears to be
intentional instead being a bug, this change extends `PostAlerter`'s
`notify_pm_users` method to create a `private_message` notification for
first posts created in a `watching_first_post` group even if the topic
user notification level is set to `tracking`
* DEV: Implement staff logs for user columns edits
* deleted extra space in staff logger detail string, deleted string when no changes are made, added basic test coverage for EditDirectoryColumnsController
* fixed change made to #self.staff_actions un UserHistory
* implemented a method that builds the details, previous_values and new_values in a dynamic way
* removed details of changes
* refactored small merge
This commit introduces a new `within_user_updater_transaction` event that's triggered inside the transaction that saves user updates in `UserUpdater`. Plugins can hook into the transaction using the event to include custom changes in the transaction. Callbacks for this event receive 2 arguments:
1. the user being saved
2. the changed attributes that are passed to `UserUpdater`.
There's also new modifier in this commit called `users_controller_update_user_params` to allow plugins to allowlist custom params in the `UsersController` which eventually end up getting passed as attributes to the `UserUpdater` and the new `within_user_updater_transaction` event where they can be used to perform additional updates using the custom params.
-----
New API is used in https://github.com/discourse/discourse-mailinglist-integration/pull/1.
This commit makes some fundamental changes to how hashtag cooking and
icon generation works in the new experimental hashtag autocomplete mode.
Previously we cooked the appropriate SVG icon with the cooked hashtag,
though this has proved inflexible especially for theming purposes.
Instead, we now cook a data-ID attribute with the hashtag and add a new
span as an icon placeholder. This is replaced on the client side with an
icon (or a square span in the case of categories) on the client side via
the decorateCooked API for posts and chat messages.
This client side logic uses the generated hashtag, category, and channel
CSS classes added in a previous commit.
This is missing changes to the sidebar to use the new generated CSS
classes and also colors and the split square for categories in the
hashtag autocomplete menu -- I will tackle this in a separate PR so it
is clearer.
Watched words were converted to regular expressions containing \W, which
handled only ASCII characters. Using [^[:word]] instead ensures that
UTF-8 characters are also handled correctly.
We were giving topics with repeated words extra weight in search index.
This meant that it was trivial to stuff words into title to dominate in search
given we search for exact title matches first.
The following tweak means that:
`invite invited invites`
and
`invite some stuff`
Both rank the same for title searching.
Titles are short and punchy, duplicating words should not give special
weight.
Requires a full reindex to take effect.
The value field of ThemeField is only used when viewing a diff in the staff action logs and local theme editing. value is being serialized into the theme index as well, which is not used. It's a huge amount of JSON that we can cut by removing it.
This also breaks up the various theme serializers into separate classes so they autoload properly (or at least restart the server on edit)
This commit fixes the following scenario:
1. The user is searching for hashtags in chat, where the subcategory
type is not highest-ranked in priority order.
2. There can, but doesn't have to be, a higher-ranked matching chat
channel that has the same slug as the subcategory.
3. Since it is not the highest-ranked type, the subcategory, which
normally has a ref of parent:child, has its ref changed to
child::category, which does not work
This was happening because whenever a hashtag type was not highest
ranked, if _any_ other hashtag results conflicted slugs, we would
append the ::type suffix. Now, we only append this suffix if a
higher-ranked type conflicts with the hashtag, and we use the current ref
to build the new typed ref to preserve this parent:child format as well,
it's more accurate.
When user.last_seen was less than push_notification_time_window_mins we
where delaying the notification for the whole
push_notification_time_window_mins PLUS the time the user was away from.
Originally reported in https://meta.discourse.org/t/-/259688
During search indexing we "stuff" the index with additional keywords for
entities that look like domain names.
This allows searches for `cnn` to find URLs for `www.cnn.com`
The search stuffing attempted to keep indexes aligned at the correct positions
by remapping the indexed terms. However under certain edge cases a single
word can stem into 2 different lexemes. If this happened we had an off by
one which caused the entire indexing to fail.
We work around this edge case (and carry incorrect index positions) for cases
like this. It is unlikely to impact search quality at all given index position
makes almost no difference in the search algorithm.
That column is obsolete since we added the `granted_title_badge_id` column in 2019 (56d3e29a69). Having both columns can lead to inconsistencies (mostly due to old data from before 2019).
For example, `BadgeGranter.revoke_ungranted_titles!` doesn't work correctly if `badge_granted_title` is `false` while `granted_title_badge_id` points to the badge that is used as title.
Similar spirit to e195e6f614,
this moves the Bookmarkable registration to DiscoursePluginRegistry
so plugins which are not enabled do not register additional
bookmarkable classes.
We currently apply type: :link watched words to custom user fields. This makes the user card pretty ugly because we don't allow html / links there. Additionally, the admin UI also does not say that we apply this to custom user fields, but only words in posts.
So this PR is to remove the replacement of link-type watch words for custom user fields.
- Reduce duplication of terms in post index from unlimited to 6. This will
result in reduced index size and reduced weighting for posts containing
a huge amount of duplicate terms. (Eg: a post containing "sam sam sam sam
sam sam sam sam", will index as "sam sam sam sam sam sam", only including
the word up to 6 times.) This corrects a flaw where title weighting could
be ignored.
- Prioritize exact matches of words in titles. Our search always performs
a prefix match. However we want to give special weight to exact title matches
meaning that a search for "sum" will find topics such as "the sum of us" vs
"summer in spring".
- Pick up fixes to our search algorithm which are missing from old indexes.
Specifically pick up the fix that indexes URLs properly. (`https://happy.com`
was stemmed to `happi` in keywords and then was not searchable)
see also:
https://meta.discourse.org/t/refinements-to-search-being-tested-on-meta/254158
Indexing will take a while and work in batches, in the background.
* FIX: do not notify admins on suppressed categories
Avoid notifying admins on categories where they are not explicitly members
in cases where SiteSetting.suppress_secured_categories_from_admin is
enabled.
This helps keep notification stream clean and avoids admins mistakenly
being invited to discussions that should be suppressed
The #pluck_first freedom patch, first introduced by @danielwaterworth has served us well, and is used widely throughout both core and plugins. It seems to have been a common enough use case that Rails 6 introduced it's own method #pick with the exact same implementation. This allows us to retire the freedom patch and switch over to the built-in ActiveRecord method.
There is no replacement for #pluck_first!, but a quick search shows we are using this in a very limited capacity, and in some cases incorrectly (by assuming a nil return rather than an exception), which can quite easily be replaced with #pick plus some extra handling.
The algorithm failed to find the correct category by slug when there are multiple sub-sub-categories with the same child-category name and the first child doesn't have the correct grandchild.
So, searching for "child / grandchild" worked in the following case, it found (3):
- (1) parent 1
- (2) child
- (3) grandchild
- (4) parent 2
- (5) child
- (6) grandchild
But it failed to find the grandchild in the following case:
- (1) parent 1
- (2) child
- (4) parent 2
- (5) child
- (6) grandchild
And this also fixes a flaky spec by forcing categories to always order by by `parent_category_id` and `id`.
This makes it possible to partly revert 60990aab55
If a post contains domain with a word that stems to a non prefix single
words will not match it.
For example: in happy.com, `happy` stems to `happi`. Thus searches for happy
will not find URLs with it included.
This bloats the index a tiny bit, but impact is limited.
Will require a full reindex of search to take effect.
When we are done refining search we can consider a full version bump.
Previous regex did not allow for cases where a lexeme contains a : (colon)
This can happen when parsing URLs. New algorithm allows for this.
Test was amended to more clearly call out index problems
* FEATURE: allow restricting duplication in search index
This introduces the site setting `max_duplicate_search_index_terms`.
Using this number we limit the amount of duplication in our search index.
This allows us to more correctly weight title searches, so bloated posts
don't unfairly bump to the top of search results.
This feature is completely disabled by default and behind a site setting
We will experiment with it first. Note entire search index must be rebuilt
for it to take effect.
---------
Co-authored-by: Alan Guo Xiang Tan <gxtan1990@gmail.com>
Using a shared channel with per-message permissions means that every client is updated with the channel's 'last_id', even if there are no messages available to them. Per-user channel names avoid this problem - the last_id will only be incremented when there is a message for the given user.
There was an issue where if hashtag-cooked HTML was sent
to the ExcerptParser without the keep_svg option, we would
end up with empty </use> and </svg> tags on the parts of the
excerpt where the hashtag was, in this case when a post
push notification was sent.
Fixed this, and also added a way to only display a plaintext
version of the hashtag for cases like this via PrettyText#excerpt.
