Issue was mentioned in this [meta topic](https://meta.discourse.org/t/send-a-notification-to-watching-users-when-adding-tag/125314)
It is working well when category is changed because NotifyCategoryChange job already got that code:
```
if post&.topic&.visible?
post_alerter = PostAlerter.new
post_alerter.notify_post_users(post, User.where(id: args[:notified_user_ids]))
post_alerter.notify_first_post_watchers(post, post_alerter.category_watchers(post.topic))
end
```
For NotifyTagChange job notify post users were missing so it worked only when your notification was set to `watching first post`
- Allow revoking keys without deleting them
- Auto-revoke keys after a period of no use (default 6 months)
- Allow multiple keys per user
- Allow attaching a description to each key, for easier auditing
- Log changes to keys in the staff action log
- Move all key management to one place, and improve the UI
Previously theme translations were loaded along with other plugin API scripts. These run after pre-initializers and initializers when the app boots. This commit moves theme translation loading into pre-initializers, so their behaviour matches core translations more closely.
This is a follow-up to the new feature that allows a category to
require a certain number of tags from a tag group. The tag input will
shows results from the required group if none have been chosen yet.
Once a require tag is selected, the tag input will include other
results as usual. Staff users can ignore this restriction, so the input
behaviour is unchanged for them.
* use image alt as a fallback when there's no title
* update spec
we used to check that the overlay information is added when the image has a titie. This adds 2 more scenarios. One where an image has both a title and an alt, in which case the title should be used and alt ignored.
The other is when there's only an alt, it should then be used to generate the overlay
Also:
Move includes call higher which makes it possible to run all of the
intermediate queries for easier debugging.
Add tests for TagsController with categories in the path.
Meta thread: https://meta.discourse.org/t/cant-dismiss-unread-if-last-post-is-an-assign-or-whisper/131823/7
* when sending a whisper, the highest_staff_post_number is set
in the next_post_number method for a Topic, but the
highest_post_number is left alone. this leaves a situation
where highest_staff_post_number is > highest_post_number
* when TopicsBulkAction#dismiss_posts was run, it was only setting the topic_user
highest_seen_post_number using the highest_post_number from the topic, so if
the user was staff and the last post in a topic was a whisper
their highest seen number was not set, and the topic stayed unread
Found through testing that the bug wasn't to do with Assign/Unassign as they do not affect the post numbers, only whispering does.
In a category's settings, the Tags tab has two new fields to
specify the number of tags that must be added to a topic
from a tag group. When creating a new topic, an error will be
shown to the user if the requirement isn't met.
This was not causing any known issue, because the system user ID is always the same across all sites. However, we should cache this on a per-site basis to be safe.
This ensures we only update last_posted_at which is user facing for non messages
and non whispers.
We still update this date for secure categories, we do not revert it for
deleted posts.
Adds the settings:
raw_email_max_length, raw_rejected_email_max_length, delete_rejected_email_after_days.
These settings control retention of the "raw" emails logs.
raw_email_max_length ensures that if we get incoming email that is huge we will truncate it removing uploads from the raw log.
raw_rejected_email_max_length introduces an even more aggressive truncation for rejected incoming mail.
delete_rejected_email_after_days controls how many days we will keep rejected emails for (default 90)
* FEATURE: Site setting/ui to allow users to set their primary group
* prettier and remove logic from account template
* added 1 to 43 to make web_hook_user_serializer_spec pass
If we are searching for categories by their slugs, it doesn't make sense
to include subcategories since a slug, by itself, does not necessarily
uniquely identify a subcategory.
Similarly, the empty string as a slug is not a good category identifier.
The default locale is :en_US, which is just a thin layer over :en. In
other words, :en_US has the :en locale as a fallback. When "en.yml" is
edited, only the :en locale is refreshed and :en_US becomes stale.
This commit ensures that there is a dependency on the fallback locales
too.
Set `DEBUG_NODE=1` when running `rake smoke:test` and use your favorite tool to debug the smoke tests. See https://nodejs.org/en/docs/guides/debugging-getting-started/ for more information.
The debugger will break at the beginning of the smoke tests when the env variable is set.
That commit introduced a bug to the system: f69dacf979
Restore works fine for multisite, however, stopped working for non-multisite.
Reason for that was that `establish_connection` method got a check if the multisite instance is available:
```
def self.instance
@instance
end
def self.establish_connection(opts)
@instance.establish_connection(opts) if @instance
end
```
However, the reload method don't have that check
```
def self.reload
@instance = new(instance.config_filename)
end
```
To solve it, let's ensure we are in a multisite environment before call reload
While editing the first post it does't bumped the topic when the new post revision created. Because we wrongly assumed that the hidden tags are changed even when no tags are updated.
Doing .pluck(:column).first is a very common pattern in Discourse and in
most cases, a limit cause isn't being added. Instead of adding a limit
clause to all these callsites, this commit adds two new methods to
ActiveRecord::Relation:
pluck_first, equivalent to limit(1).pluck(*columns).first
and pluck_first! which, like other finder methods, raises an exception
when no record is found
- Increase size of the reviewable's conversation excerpt to prevent truncation of the new copy
- Remove the `domain` parameter from the `flag_linked_posts_as_spam` method in the user model since it is no longer needed
- Remove the `domain` interpolation variable from all translation files
- Add "All posts from this user that include links should be reviewed." to server.en.yml for added clarity on why the posts entered the queue
Trying to truncate encoded slugs will mean that we have to keep the URL
valid, which can be tricky as you have to be aware of multibyte
characters.
Since we already have upper bounds for the title, the slug won't grow
for more than title*6 in the worst case. The slug column in the topic
table can store that just fine.
Added a test to ensure that a generated slug is a valid URL too, so we
don't introduce regressions in the future.
Under exceptional situations the automatic draft feature can fail.
This new **hidden, default off** site setting
`backup_drafts_to_pm_length` will automatically backup any draft that is
saved by the system to a dedicated PM (originating from self)
The body of that PM will contain the text of the reply.
We can enable this feature strategically on sites exhibiting issues to
diagnose issues with the draft system and offer a recourse to users who
appear to lose drafts. We automatically checkpoint these drafts every 5
minutes forcing a new revision each 5 minutes so you can revert to old
content.
Longer term we are considering automatically enabling this kind of feature
for extremely long drafts where the risk is really high one could lose
days of writing.
This reverts commit ab74a50d85.
We really want to upgrade redis, but discovered some edge cases
around failover we need to test.
Holding off on the upgrade till a bit more testing happens
This feature amends it so instead of using one challenge and honeypot
statically per site we have a rotating honeypot and challenge value which
changes every hour.
This means you must grab a fresh copy of honeypot and challenge value once
an hour or account registration will be rejected.
We also now cycle the value of the challenge when after successful account
registration forcing an extra call to hp.json between account registrations
Client has been made aware of these changes.
Additionally this contains a JavaScript workaround for:
https://bugs.chromium.org/p/chromium/issues/detail?id=987293
This is client side code that is specific to Chrome user agent and swaps
a PASSWORD type honeypot with a TEXT type honeypot.
When an admin changes the site setting slug_generation_method to
encoded, we weren't really encoding the slug, but just allowing non-ascii
characters in the slug (unicode).
That brings problems when a user posts a link to topic without the slug, as
our topic controller tries to redirect the user to the correct URL that contains
the slug with unicode characters. Having unicode in the Location header in a
response is a RFC violation and some browsers end up in a redirection loop.
Bug report: https://meta.discourse.org/t/-/125371?u=falco
This commit also checks if a site uses encoded slugs and clear all saved slugs
in the db so they can be regenerated using an onceoff job.
Our instance used for template rendering needs a lock to ensure there is
no race condition where rendering happens on 2 threads at the same time.
This can lead to local poisoning which can cause unexpected results in
emails
* [WIP] - default turbo spec env to test
* FEATURE: support for --fast-fail in bin/turbo_rspec
* fast-fail -> fail_fast to match rspec
* Moved thread killing outside of fail-fast check
* Removed failure_count incrementation from fast_fail_met
If the setting is turned on, then the user will receive information
about the subject: if it was deleted or requires some special access to
a group (only if the group is public). Otherwise, the user will receive
a generic #404 error message. For now, this change affects only the
topics and categories controller.
This commit also tries to refactor some of the code related to error
handling. To make error pages more consistent (design-wise), the actual
error page will be rendered server-side.
Using popups is becoming increasingly rare. Full page redirects are already used on mobile, and for some providers. This commit removes all logic related to popup authentication, leaving only the full page redirect method.
For more info, see https://meta.discourse.org/t/do-we-need-popups-for-login/127988
Currently, if you try to run `./bin/turbo_rspec` you will got that error `There are pending migrations, run rake parallel:migrate`
Reason for that is that command is running in `development` mode which includes plugins migration files in ActiveRecord::Migrator.migrations_paths:
```
["db/migrate",
"/home/lis2/projects/discourse/plugins/discourse-details/db/migrate",
"/home/lis2/projects/discourse/plugins/discourse-details/db/post_migrate",
"/home/lis2/projects/discourse/plugins/discourse-local-dates/db/migrate",
"/home/lis2/projects/discourse/plugins/discourse-local-dates/db/post_migrate",
...
]
```
A workaround solution would be to run the command with the TEST environment like `RAILS_ENV=test ./bin/turbo_rspec`
I want to propose in this PR to override migration_paths to check only Discourse core migrations.
We preload to ensure as much memory as possible is reused from unicorn master
to various workers using copy-on-write (sidekiq, unicorn)
This migrates the preloading code into the Discourse module for easier
reuse and adds 3 notable preloading changes
1. We attempt to localize a string on each site, ensuring we warmup
the i18n
2. We preload all our templates (compiling .erb to class)
3. We warm-up our search tokenizer which uses cppjieba which is a large
memory consumer, this will only cause a warmup on CJK sites or sites with
the special site setting enabled.
Previous to this fix we were leaking methods on the internal action view
template class per render.
This caused email generation to be very low and a steady memory leak in the
application in sidekiq when sending out emails
The behavior change is new to Rails 6 so this fix does not need to be
backported into stable.
It was possible to add a category to more than one default group, e.g. "default categories muted" and "default categories watching first post".
The bug was caused by category validations inadvertently comparing strings and numbers.
Overwriting the same file with 'convert' is not always working as expected.
Adding a temporary file as the destination of the downsize makes this operation much more reliable.
Also switched to using (the more aggressive) 50% resize instead of halving the number of pixels.
* FEATURE: Adds an extra protection layer when decompressing files.
* Rename exporter/importer to zip importer. Update old locale
* Added a new composite class to decompress a file with multiple strategies
* Set max file size inside a site setting
* Ensure that file is deleted after compression
* Sanitize path and files before compressing/decompressing
Threadsafety
Since we use the same redis connection in multiple threads, a rogue
transaction in another thread can trample the connection state
(watched keys) that we need to acquire and release the lock properly.
This is fixed by preventing other threads from using the connection
when we are performing these actions.
Off-by-one error
A distributed mutex is now consistently determined to be expired if
the current time is strictly greater than the expire time.
Unwatch before transaction
Since the redis connection is used by so much of the code, it is
difficult to ensure that any watched keys have been cleared. In order
to defend against this rogue connection state, an unwatch has been
added before locking and unlocking.
Logging
Hopefully this log message is more clear.
I introduced DemonBase because I had got some conflict between `demon/base.rb` and `jobs/base.rb`, however, to not rename base class, it is possible to use regex on absolute path in Zeitwerk custom inflector.
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains.
We no longer need to use Rails "require_dependency" anywhere and instead can just use standard
Ruby patterns to require files.
This is a far reaching change and we expect some followups here.
Adds 2 factor authentication method via second factor security keys over [web authn](https://developer.mozilla.org/en-US/docs/Web/API/Web_Authentication_API).
Allows a user to authenticate a second factor on login, login-via-email, admin-login, and change password routes. Adds registration area within existing user second factor preferences to register multiple security keys. Supports both external (yubikey) and built-in (macOS/android fingerprint readers).
Currently, the topic is only validated for censored words and should be validated for blocked words as well.
Blocked word validation is now used by both Post and Topic. To avoid code duplication, I extracted blocked words validation code into separate Validator, and use it in both places.
The only downside is that even if the topic contains blocked words validation message is saying "Your post contains a word that's not allowed: tomato" but I think this is descriptive enough.
Forums without previously calculated scores would return the same values
for low/medium/high sensitivity. Now those are scaled based on the
default value.
The default value has also been changed from 10.0 to 12.5 based on
observing data from live discourse forums.
This means that TL0 users can message groups with "Who can message this
group?" set to "Everyone".
It also means that members of a group with "Who can message this
group?" set to "members, moderators and admins" can also message the
group, even when their trust level is below min_trust_to_send_messages.
In Rails 6 due to internal changes, the following sequence no longer works:
```
RAILS_ENV=test bin/rake db:migrate
RAILS_ENV=test bin/rake db:schema:dump
dropdb discourse_test
createdb discourse_test
RAILS_ENV=test bin/rake db:schema:load
RAILS_ENV=test bin/rake db:migrate
```
What appears to be happening is that our tracking of plugin migrations is
being missed on schema:dump or load.
A more comprehensive fix restoring schema:dump / load support will be
investigated.
Prior to the new review queue there were a couple special cases where
posts would be auto hidden:
* If a TL3 or above flagged a TL0 post as spam
* If a TL4 or above flagged a non-staff, non-TL4 post as spam, inappropriate or off
topic.
These cases are now removed in favour of the scoring system.
Prior to this change plugin migrations were not working and multisite
migrations not working.
Rails internals changed so we need to account for it.
Specifically semantics of `db:migrate` in rails changed so it is sort of
a "multisite:migrate".
This is a temporary workaround for the issue in https://github.com/rails/rails/pull/36949
Discussing a proper fix in Rails with the Rails team.
Prior to this fix we were spinning up a thread every time we closed a connection
to the db.
* Adjustments to pass specs on Rails 6.0.0
* Use classic autoloader instead of Zeitwerk
* Update Rails 6.0.0 deprecated methods
* Rails 6.0.0 not allowing column with integer name
* Drop freedom_patches/rails6.rb
* Default value for trigger_transactional_callbacks? is true
* Bump rspec-rails version to 4.0.0.beta2
* FIX: inline_uploads and subfolder
* if subfolder, also look for images with a path containing
cdn_url + relative_url_root
* FIX: migrate_to_s3 task and subfolder
* Extract QuickAccessPanel from UserNotifications.
* FEATURE: Quick access panels in user menu.
This feature adds quick access panels for bookmarks and personal
messages. It allows uses to browse recent items directly in the user
menu, without being redirected to the full pages.
* REFACTOR: Use QuickAccessItem for messages.
Reusing `DefaultNotificationItem` feels nice but it actually requires a
lot of extra work that is not needed for a quick access item.
Also, `DefaultNotificationItem` shows an incorrect tooptip ("unread
private message"), and it is not trivial to remove / override that.
* Use a plain JS object instead.
An Ember object was required when `DefaultNotificationItem` was used.
* Prefix instead suffix `_` for private helpers.
* Set to null instead of deleting object keys.
JavaScript engines can optimize object property access based on the
object’s shape. https://mathiasbynens.be/notes/shapes-ics
* Change trivial try/catch to one-liners.
* Return the promise in case needs to be waited on.
* Refactor showAll to a link with href
* Store `emptyStatePlaceholderItemText` in state.
* Store items in Session singleton instead.
We can drop `staleItems` (and `findStaleItems`) altogether. Because
`(old) items === staleItems` when switching back to a quick access
panel.
* Add `limit` parameter to the `user_actions` API.
* Explicitly import Session instead.
* FEATURE: Add tl2 threshold for editing new posts
* Adds a new setting and for tl2 editing posts (30 days same as old value)
* Sets the tl0/tl1 editing period as 1 day
* FIX: Spec uses wrong setting
* Fix site setting on guardian spec
* FIX: post editing period specs
* Avoid shared examples
* Use update_columns to avoid callbacks on user during tests
This commit introduces 2 features:
1. DISCOURSE_COMPRESS_ANON_CACHE (true|false, default false): this allows
you to optionally compress the anon cache body entries in Redis, can be
useful for high load sites with Redis that lives on a separate server to
to webs
2. DISCOURSE_ANON_CACHE_STORE_THRESHOLD (default 2), only pop entries into
redis if we observe them more than N times. This avoids situations where
a crawler can walk a big pile of topics and store them all in Redis never
to be used. Our default anon cache time for topics is only 60 seconds. Anon
cache is in place to avoid the "slashdot" effect where a single topic is
hit by 100s of people in one minute.
Start tracking the date an api key was last used. This has already been
the case for user_api_keys.
This information can provide us with the ability to automatically expire
unused api keys after N days.
This allows custom plugins such as prometheus exporter to log how many
requests are stored in the anon cache vs used by the anon cache.
This metric allows us to fine tune cache behaviors
* FIX: User should get notified when a post is deleted
* FEATURE: Notify posters when restoring flagged posts
* Fix typo
Co-Authored-By: Régis Hanol <regis@hanol.fr>
* Improve tests
This reverts commit e805d44965.
We now have mechanisms in place to ensure heartbeat will always
be scheduled even if the scheduler is overloaded per: 098f938b
* The read indicator now shows up when no member has read the last post of the topic (written by a non-member)
* The read indicator works on mobile and receives live updates from message bus
* The icon we display in the topic list was changed
* Added a title to the indicator to indicate its purpose when hovering over it
In some very specific cases (large sites) shared drafts can introduce a
performance hit due to the mechanism used to filter out topics
This avoids the entire process when shared drafts are not enabled
* Revert "Revert "FEATURE: Publish read state on group messages. (#7989) [Undo revert] (#8024)""
This reverts commit 36425eb9f0.
* Fix: Show who read only if the attribute is enabled
* PERF: Precalculate the last post readed by a group member
* Use book-reader icon instear of far-eye
* FIX: update topic groups correctly
* DEV: Tidy up read indicator update on write
This is a very long standing bug we had, if a plugin attempted to amend a
serializer core was not "correcting" the situation for all descendant classes
this often only showed up in production cause production eager loads serializers
prior to plugins amending them.
This is a critical fix for various plugins
* FIX: Heartbeat check per sidekiq process
* Rename method
* Remove heartbeat queues of previous bootups
* Regis feedback
* Refactor before_start
* Update lib/demon/sidekiq.rb
Co-Authored-By: Régis Hanol <regis@hanol.fr>
* Update lib/demon/sidekiq.rb
Co-Authored-By: Régis Hanol <regis@hanol.fr>
* Expire redis keys after 3600 seconds
* Don't use redis to store the list of queues
This reverts commit 39c31a3d76.
Sorry about this, we have decided againse supporting 0-RTT directly in
core, this can be supported with similar hacks to this commit in a
plugin.
That said, we recommend against using a 0-RTT proxy for the Discourse
app due to inherit risk of replay attacks.
This change allows themes and components access to theme assets.
This means that inside theme js you can now get the URL for an asset with:
```
settings.theme_uploads.name
```
* Reenable: "FEATURE: Publish read state on group messages. (#7989)"
This reverts commit 67f5cc1ce8.
* FIX: Read indicator only appears when the group setting is enabled
* Enable or disable read state based on group attribute
* When read state needs to be published, the minimum unread count is calculated in the topic query. This way, we can know if someone reads the last post
* The option can be enabled/disabled from the UI
* The read indicator will live-updated using message bus
* Show read indicator on every post
* The read indicator now shows read count and can be expanded to see user avatars
* Read count gets updated everytime someone reads a message
* Simplify topic-list read indicator logic
* Unsubscribe from message bus on willDestroyElement, removed unnecesarry values from post-menu, and added a comment to explain where does minimum_unread_count comes from
Previously we relied on side effects to set tracking state correctly
when inviting groups to messages
Also has a minor optimisation in that we use pluck instead of pulling in
full record
This adds support for a `<d-topics-list>` tag you can embed in your site
that will be rendered as a list of discourse topics. Any attributes on
the tag will be passed as filters. For example:
`<d-topics-list discourse-url="URL" category="1234">` will filter to category 1234.
To use this feature, enable the `embed topics list` site setting. Then
on the site you want to embed, include the following javascript:
`<script
src="http://URL/javascripts/embed-topics.js"></script>`
Where `URL` is your discourse forum's URL.
Then include the `<d-topics-list discourse-url="URL">` tag in your HTML document and it will
be replaced with the list of topics.
In some very rare cases CssParser could be loaded but CssParser::Parser not
this ensures we check for the actual constant we plan to call for concurrent
digest generations
There are 5 visibility levels (similar to group visibility)
public (default)
logged-in users
members only
staff
owners
Admins & group owners always have visibility to group members.
Running this inline makes more sense otherwise there is extreme risk in
saturating sidekiq queue.
This also reworks ordering and selection so we double check if a post needs
rebaking prior to rebaking, this unlocks the ability to run this rake task
from multiple consoles.
This column often breaks remaps because of some weird, long URLs. The data isn't that important, so truncating a couple of URLs doesn't hurt that much.
When a user liked, unliked and liked again the same post, the poster
would receive a notification such as "X and X liked ...". This happened
because PostActionNotifier.post_action_created was called twice.
This displays more useful messages for the most common issues we see:
- CSRF (when the user switches browser)
- Invalid IAT (when the server clock is wrong)
- OAuth::Unauthorized for OAuth1 providers, when the credentials are incorrect
This commit also stops earlier for disabled authenticators. Now we stop at the request phase, rather than the callback phase.
This feature (when enabled) will allow for invite_only sites to require
external authentication before they can redeem an invite.
- Created hidden site setting to toggle this
- Enables sending invites with local logins disabled
- OAuth button added to invite form
- Requires OAuth email address to match invite email address
- Prevents redeeming invite if OAuth authentication fails
All posts created by the user are counted unless they are deleted,
belong to a PM sent between a non-human user and the user or belong
to a PM created by the user which doesn't have any other recipients.
It also makes the guardian prevent self-deletes when SSO is enabled.
Temporarily recreate already dropped functions in the discourse_functions schema in order to allow restoring of backups which still reference dropped functions.
The message_bus performs a fair amount of work prior to hijacking requests
this change ensures that if there is a situation where the server is flooded
message_bus will inform client to back off for 30 seconds + random(120 secs)
This back-off is ultra cheap and happens very early in the middleware.
It corrects a situation where a flood to message bus could cause the app
to become unresponsive
MessageBus update is here to ensure message_bus gem properly respects
Retry-After header and status 429.
Under normal state this code should never trigger, to disable raise the
value of DISCOURSE_REJECT_MESSAGE_BUS_QUEUE_SECONDS, default is to tell
message bus to go away if we are queueing for 100ms or longer
Previously we would only hold the post process mutex for 1 minute, that is
not enough when processing a post with lots of images. This raises the bar
to 10 minutes.
It also cleans up error reporting around distributed mutexes expiring. We
used to double report.
- Client-side censoring fixed for non-chrome browsers. (Regular expression rewritten to avoid lookback)
- Regex generation is now done on the server, to reduce repeated logic, and make it easier to extend in plugins
- Censor tests are moved to ruby, to ensure everything works end-to-end
- If "watched words regular expressions" is enabled, warn the admin when the generated regex is invalid
* REFACTOR: Rename SiteSetting.disable_edit_notifications to disable_system_edit_notifications
- The older name could cause some confusion because the setting does not disable all edit notifications, only system ones.
* FIX: Add frozen_string_literal: true in the migration
* DEV: Deprecate 'disable_edit_notifications'
This feature adds the ability to customize the HTML part of all emails using a custom HTML template and optionally some CSS to style it. The CSS will be parsed and converted into inline styles because CSS is poorly supported by email clients. When writing the custom HTML and CSS, be aware of what email clients support. Keep customizations very simple.
Customizations can be added and edited in Admin > Customize > Email Style.
Since the summary email is already heavily styled, there is a setting to disable custom styles for summary emails called "apply custom styles to digest" found in Admin > Settings > Email.
As part of this work, RTL locales are now rendered correctly for all emails.
Fixes bugs, simplifies code, more default files. General idea, more is more here as it's easier to just delete things than reading and passing all the options.
* FIX: Better error when SSO fails due to blank secret
* Update spec/requests/session_controller_spec.rb
Co-Authored-By: Robin Ward <robin.ward@gmail.com>
This feature is off by default and can can be configured with the `email_total_attachment_size_limit_kb` site setting.
Co-authored-by: Maja Komel <maja.komel@gmail.com>
* FEATURE: Add search operator to see all direct messages from a user
* Only show message if related messages >= 5
* Make "all messages" the hyperlink
* Review
This commit contains 3 features:
- FEATURE: Allow downloading watched words
This introduces a button that allows admins to download watched words per action in a `.txt` file.
- FEATURE: Allow clearing watched words in bulk
This adds a "Clear All" button that clears all deleted words per action (e.g. block, flag etc.)
- FEATURE: List all blocked words contained in the post when it's blocked
When a post is rejected because it contains one or more blocked words, the error message now lists all the blocked words contained in the post.
-------
This also changes the format of the file for importing watched words from `.csv` to `.txt` so it becomes inconsistent with the extension of the file when watched words are exported.
* DEV: group_list site settings should store IDs instead of group names
* Ship site setting to know when we should migrate group_list settings
* Migrate existing group_list site settings
* Bump migration timestamp and don't set null when migrating is not possible.
