There are various performance issues with the Canvas in iOS Safari
that are causing crashes when processing images with spikes of over 100%
CPU usage. The cause of this is unknown, but profiling points to
CanvasRenderingContext2D.getImageData() and
CanvasRenderingContext2D.drawImage().
Until Safari makes some progress with OffscreenCanvas or other
alternatives we cannot support this workflow. We will revisit in 6
months.
This is gated behind the hidden `composer_ios_media_optimisation_image_enabled`
site setting for people who really still want to try using this.
This change adds `target` to the set of attributes allowed by the
HTML sanitizer which is applied to the description of a user_field.
The rationale for this change:
* If one puts a link (<a>...</a>) in the description of a user_field
that is present and/or required at sign-up, the expectation is that
a prospective new user will click on that link during sign-up.
* Without an appropriate `target` attribute on the link, the new page
will be loaded in the same window/tab as the sign-up form, but this
will obliterate any fields that the user had already filled-out on
the form. (E.g., hitting the back-button will return to an
empty form.)
* Such UX behavior is incredibly aggravating to new users.
This change allows an admin to add a `target` attribute to links, to
instruct the browser to open them in a different window/tab, leaving
a sign-up form intact.
This commit introduces the experimental `registerUserCategorySectionLinkCountable`
and `refreshUserSidebarCategoriesSectionCounts` plugin APIs that allows
a plugin to register custom countables to category section links on top
of the defaults of unread and new.
Links to category settings were created using the category name. If the name was a single word, the link would be valid (regardless of capitalization).
For example, if the category was named `Awesome`
`/c/Awesome/edit/settings`
is a valid URL as that is a case-insensitive match for the category slug of `awesome`.
However, if the category had a space in it, the URL would be
`/c/Awesome%20Name/edit/settings`
which does not match the slug of `awesome-name`.
This change uses the category slug, rather than the name, which is the expected behaviour (see `Category.find_by_slug_path`).
This commit does a couple of things:
1. Changes the limit of tags to include a subject for a
notification email to the `max_tags_per_topic` setting
instead of the arbitrary 3 limit
2. Adds both an X-Discourse-Tags and X-Discourse-Category
custom header to outbound emails containing the tags
and category from the subject, so people on mail clients
that allow advanced filtering (i.e. not Gmail) can filter
mail by tags and category, which is useful for mailing
list mode users
c.f. https://meta.discourse.org/t/headers-for-email-notifications-so-that-gmail-users-can-filter-on-tags/249982/17
We previously used post creator's guardian permissions which will raise an error if the reviewer added a staff-only (restricted) tag.
Co-authored-by: Natalie Tay <natalie.tay@discourse.org>
This feature is stable enough now to make it the default going forward
for new sites. Existing sites that have not yet set enable_experimental_hashtag_autocomplete
to `true` will have it set to `false` for their site settings, which was the old default.
c.f https://meta.discourse.org/t/hashtags-are-getting-a-makeover/248866
This commit fixes an issue where the chat message bookmarks
did not respect the user's `bookmark_auto_delete_preference`
which they select in their user preference page.
Also, it changes the default for that value to "keep bookmark and clear reminder"
rather than "never", which ends up leaving a lot of expired bookmark
reminders around which are a pain to clean up.
When sending emails out via group SMTP, if we
are sending them to non-staged users we want
to mask those emails with BCC, just so we don't
expose them to anyone we shouldn't. Staged users
are ones that have likely only interacted with
support via email, and will likely include other
people who were CC'd on the original email to the
group.
Co-authored-by: Martin Brennan <martin@discourse.org>
Using a shared channel means that every user receives an update to the 'last_id' when *any* other user is logged out. If many users are being programmatically logged out at the same time, this can cause a very large number of message-bus polls.
This commit switches to use a user-specific channel, which means that each user has its own 'last id' which will only increment when they are logged out
* Remove unused strings
* Remove trailing quote from string
* Remove even more unused strings (they were removed in c4e10f2a9d)
* Don't use translations in tests which are only available on server
* Use more specific translation (and fix missing translation)
Rather than hardcoding `.hashtag-autocomplete__fadeout` as the
div element to scroll in autocomplete, instead pass it in as
an option via `scrollElementSelector`, then we don't have hashtag
template specific things in the autocomplete lib.
When loading posts in a topic, the topic level guardian
checks are run multiple times even though all the posts belong to the
same topic. Profiling in production revealed that this accounted for a
significant amount of request time for a user that is not staff or anon.
Therefore, we're optimizing this by adding memoizing the topic level
calls in `PostGuardian`. Speficifally, the result of
`TopicGuardian#can_see_topic?` and `PostGuardian#can_create_post?`
method calls are memoized per topic.
Locally profiling shows a significant improvement for normal users
loading a topic with 100 posts.
Benchmark script command: `ruby script/bench.rb --unicorn --skip-bundle-assets --iterations 100`
Before:
```
topic user:
50: 114
75: 117
90: 122
99: 209
topic.json user:
50: 67
75: 69
90: 72
99: 162
```
After:
```
topic user:
50: 101
75: 104
90: 107
99: 184
topic.json user:
50: 53
75: 53
90: 56
99: 138
```
# Context
When a topic is reviewable by a group we give those group moderators some admin abilities including the ability to delete a topic.
# Problem
There are two main problems:
1. Currently when a group moderator deletes a topic they are redirected to root (not the same for staff)
2. Viewing the categories deleted topics (`c/foo/1/?status=deleted`) does not display the deleted topic to the group moderator (not the same for staff).
# Fix
If the `deleted_by` user is part a group that matches the `reviewable_by_group` on a topic then don't redirect. This is the default interaction for staff to give them the ability to do things like restore the topic in case it was accidentally deleted.
To render the deleted topics as expected for the group moderator I am utilizing [the guardian scope of `guardian.can_see_deleted_topics?` for said category](https://github.com/discourse/discourse/pull/19618/files#diff-288e61b8bacdb29d9c2e05b42da6837b0036dcf1867332d977ca7c5e74a44297R802-R803)
We show live user status on mentions starting from a76d864. But status didn’t appear on the post that appears on the bottom of the topic just after a user posted it (status appeared only after page reloading). This adds status to just posted posts.
We need to set the local state of a channel before performing any async operations. Otherwise, multiple leave/join calls can race against each other and cause the local state to get out-of-sync with the server.
Followup to e70ed31a
Instead of relying on the `ILIKE` operator to filter out image links, we
can instead rely on the `TopicLink#extension` column which allows us to
more efficiently filter out image links.
This optimization mainly affects topics that are link heavy which is
common in topics with alot of replies. When profiling a production
instance for a topic with 10K replies and 2.5K `topic_links`, this
optimization reduces the query time from ~18ms to around ~4ms.
Group names will be used as CSS classes in some components while rendering the public HTML output. It will happen when a group is set as the default primary for users. Or when a group has either a flair icon or flair upload. So we should warn the admins when they restrict the group's visibility level.
Co-authored-by: Penar Musaraj <pmusaraj@gmail.com>
