Define `Settings::BaseController#set_body_classes` so that sub classes
inherit `Settings::BaseController` don't need to define
`#set_body_classes` agein.
* Add instance-wide setting to disable profile directory
Fixes#9496
When the profile directory is disabled:
- The “discoverable” setting is hidden from users
- The “profile directory” link is not shown on public pages
- /explore returns 404
* Move Setting.profile_directory check to a before_action filter
* Add setting to not aggregate reblogs
Fixes#9222
* Handle cases where user is nil in add_to_home and add_to_list
* Add hint for setting_aggregate_reblogs option
* Reword setting_aggregate_reblogs label
* Improve overview of accounts in admin UI
- Display suspended status, role, last activity and IP prominently
- Default to showing local accounts
- Default to not showing suspended accounts
* Remove unused strings
* Fix tests
* Allow filtering accounts by IP mask
* Eliminate extra accounts select query from FollowService
* Optimistically update follow state in web UI and hide loading bar
Fix#6205
* Asynchronize NotifyService in FollowService
And fix failing test
* Skip Webfinger resolve routine when called from FollowService if possible
If an account is ActivityPub, then webfinger re-resolving is not necessary
when called from FollowService. Improve options of ResolveAccountService
* Nascent tag menu on frontend
* Hook up frontend to search
* Tag intersection backend first pass
* Update yarnlock
* WIP
* Fix for tags not searching correctly
* Make radio buttons function
* Simplify radio buttons with modeOption
* Better naming
* Rearrange options
* Add all/any/none functionality on backend
* Small PR cleanup
* Move to service from scope
* Small cleanup, add proper service tests
* Don't use send with user input :D
* Set appropriate column header
* Handle auto updating timeline
* Fix up toggle function
* Use tag value correctly
* A bit more correct to use 'self' rather than 'all' in status scope
* Fix some style issues
* Fix more code style issues
* Style select dropdown more better
* Only use to_id'ed value to ensure no SQL injection
* Revamp frontend to allow for multiple selects
* Update backend / col header to account for more flexible tagging
* Update brakeman ignore
* Codeclimate suggestions
* Fix presenter tag_url
* Implement initial PR feedback
* Handle additional tag streaming
* CodeClimate tweak
Conflicts:
- app/controllers/auth/sessions_controller.rb
Upstream reverted something we partially reverted already.
Reverted the rest to match upstream.
Conflicts:
- app/controllers/admin/base_controller.rb
- app/controllers/filters_controller.rb
- app/controllers/invites_controller.rb
- app/controllers/settings/deletes_controller.rb
- app/controllers/settings/exports_controller.rb
- app/controllers/settings/follower_domains_controller.rb
- app/controllers/settings/migrations_controller.rb
- app/controllers/settings/notifications_controller.rb
- app/controllers/settings/preferences_controller.rb
- app/controllers/settings/two_factor_authentication/recovery_codes_controller.rb
- app/javascript/packs/public.js
- app/views/settings/profiles/show.html.haml
Conflicts were mostly due to the addition of body classes to the settings page,
this was caused by rejecting upstream changes for most of those files and
modifying Settings::BaseController instead.
Another cause of conflicts was the deletion of client-side checking of
display name / bio length, this was modified in app/javascript/core/settings.js
instead.
Conflicts:
- .github/ISSUE_TEMPLATE/bug_report.md
Took our version.
- CONTRIBUTING.md
Updated the embedded copy of upstream's version.
- README.md
Took our version.
- app/policies/status_policy.rb
Not a real conflict, took code from both.
- app/views/layouts/embedded.html.haml
Added upstream's changes (dns-prefetch) and fixed
`%body.embed`
- app/views/settings/preferences/show.html.haml
Reverted some of upstream changes, as we have a
page dedicated for flavours and skins.
- config/initializers/content_security_policy.rb
Kept our version of the CSP.
- config/initializers/doorkeeper.rb
Not a real conflict, took code from both.
* Downcase signed_headers string before building the signed string
The HTTP Signatures draft does not mandate the “headers” field to be downcased,
but mandates the header field names to be downcased in the signed string, which
means that prior to this patch, Mastodon could fail to process signatures from
some compliant clients. It also means that it would not actually check the
Digest of non-compliant clients that wouldn't use a lowercased Digest field
name.
Thankfully, I don't know of any such client.
* Revert "Remove dead code (#8919)"
This reverts commit a00ce8c92c.
* Restore time window checking, change it to 12 hours
By checking the Date header, we can prevent replaying old vulnerable
signatures. The focus is to prevent replaying old vulnerable requests
from software that has been fixed in the meantime, so a somewhat long
window should be fine and accounts for timezone misconfiguration.
* Escape users' URLs when formatting them
Fixes possible HTML injection
* Escape all string interpolations in Formatter class
Slightly improve performance by reducing class allocations
from repeated Formatter#encode calls
* Fix code style issues
* Downcase signed_headers string before building the signed string
The HTTP Signatures draft does not mandate the “headers” field to be downcased,
but mandates the header field names to be downcased in the signed string, which
means that prior to this patch, Mastodon could fail to process signatures from
some compliant clients. It also means that it would not actually check the
Digest of non-compliant clients that wouldn't use a lowercased Digest field
name.
Thankfully, I don't know of any such client.
* Revert "Remove dead code (#8919)"
This reverts commit a00ce8c92c.
* Restore time window checking, change it to 12 hours
By checking the Date header, we can prevent replaying old vulnerable
signatures. The focus is to prevent replaying old vulnerable requests
from software that has been fixed in the meantime, so a somewhat long
window should be fine and accounts for timezone misconfiguration.
* Escape users' URLs when formatting them
Fixes possible HTML injection
* Escape all string interpolations in Formatter class
Slightly improve performance by reducing class allocations
from repeated Formatter#encode calls
* Fix code style issues
* Add conversations API
* Add web UI for conversations
* Add test for conversations API
* Add tests for ConversationAccount
* Improve web UI
* Rename ConversationAccount to AccountConversation
* Remove conversations on block and mute
* Change last_status_id to be a denormalization of status_ids
* Add optimistic locking
Conflicts:
db/migrate/20170716191202_add_hide_notifications_to_mute.rb
spec/controllers/application_controller_spec.rb
Took our version, upstream changes were only minor style linting.
* Allow min_id pagination in Feed#get
* Add min_id pagination to home and list timeline APIs
* Add min_id pagination to account statuses, public and tag APIs
* Remove unused stub in reports API
* Use min_id pagination in notifications, favourites, and fix order
* Fix HomeFeed#from_database not using paginate_by_id
* Add force_login option to OAuth authorize page
For when a user needs to sign into an app from multiple accounts
on the same server
* When logging out from modal header, redirect back after re-login
* Add animate custom emoji param to embed pages
* Rename param, use it for avatars and gifs
* Fix issues pointed by codeclimate and breaking test
* Ignore brakeman warning
* Allow moderators to disable/enable login
* Instead of rejecting login, show forbidden error when login disabled
Avoid confusion because when login is rejected, the message is that
the account is not activated, which is wrong.
* Fix tests
* Add default_settings class method to ScopedSettings
ScopedSettings was extended to use value of unscoped setting instead of
only using defaults set in config/settings.yml for selected settings.
This adds possibility for admins to set default values of users' settings,
for example default theme (as requested in #7092).
* Add ability to change an instance default theme
Closes#7092
Conflicts:
.circleci/config.yml
app/controllers/authorize_follows_controller.rb
app/javascript/packs/public.js
Moved new stuff from packs/public.js to core/public.js.
Added appropriate use_pack in new controllers.
* Add remote interaction dialog for toots
* Change AuthorizeFollow into AuthorizeInteraction, support statuses
* Update brakeman.ignore
* Adjust how interaction buttons are display on public pages
* Fix tests
Conflicts:
app/models/status.rb
db/migrate/20180528141303_fix_accounts_unique_index.rb
db/schema.rb
Resolved by taking upstream changes (no real conflicts, just glitch-soc
specific code too close to actual changes).
Conflicts:
app/controllers/accounts_controller.rb
app/javascript/mastodon/locales/pl.json
app/views/about/more.html.haml
Conflicts in `accounts_controller.rb` resolved by taking upstream's
version + our `use_pack`.
Conflicts in `pl.json` resolved by taking upstream's changes.
Conflicts in `aboute/more.html.haml` resolved by taking upstream's changes.
Manually-resolved conflicts:
.circleci/config.yml
app/controllers/accounts_controller.rb
app/controllers/auth/passwords_controller.rb
app/controllers/statuses_controller.rb
app/javascript/packs/public.js
app/models/media_attachment.rb
app/views/stream_entries/_content_spoiler.html.haml
app/views/stream_entries/_media.html.haml
config/locales/en.yml
config/locales/ja.yml
config/locales/pl.yml
lib/mastodon/version.rb
Some content from app/javascript/packs/public.js has been split to
app/javascript/core/settings.js.
Translation strings for glitch-soc's keyword mutes were dropped.
Everything else was mostly “take both”.
Conflicts:
Dockerfile
app/javascript/packs/common.js
config/webpack/loaders/sass.js
config/webpack/shared.js
db/schema.rb
package.json
yarn.lock
A lot of the conflicts come from updating webpack.
Even though upstream deleted app/javascript/packs/common.js, I kept
glitch-soc's version as it unifies JS/CSS packs behavior across flavours.
Ported glitch changes to webpack 4.x
Completely remove glitch-soc's Keyword Mutes, migrate
existing database records to CustomFilters.
Handling of client-side filters is still not implemented
in the glitch-soc front-end.
Conflicts:
README.md
app/controllers/statuses_controller.rb
app/lib/feed_manager.rb
config/navigation.rb
spec/lib/feed_manager_spec.rb
Conflicts were resolved by taking both versions for each change.
This means the two filter systems (glitch-soc's keyword mutes and tootsuite's
custom filters) are in place, which will be changed in a follow-up commit.
DELETE /api/v1/suggestions/:account_id
When blocking, remove suggestion from both sides. Muting not affected,
since muting is supposed to be invisible to the target.
* Add more granular OAuth scopes
* Add human-readable descriptions of the new scopes
* Ensure new scopes look good on the app UI
* Add tests
* Group scopes in screen and color-code dangerous ones
* Fix wrong extra scope
* Re-add follow recommendations API
GET /api/v1/suggestions
Removed in 8efa081f21 due to Neo4J
dependency. The algorithm uses triadic closures, takes into account
suspensions, blocks, mutes, domain blocks, excludes locked and moved
accounts, and prefers more recently updated accounts.
* Track interactions with people you don't follow
Replying to, favouriting and reblogging someone you're not following
will make them show up in follow recommendations. The interactions
have different weights:
- Replying is 1
- Favouriting is 10 (decidedly positive interaction, but private)
- Reblogging is 20
Following them, muting or blocking will remove them from the list,
obviously.
* Remove triadic closures, ensure potential friendships are trimmed
* Make embeds cacheable by reverse proxy
* Make follow button on embeds open remote follow modal
Instead of web+mastodon://, also, turn the button blue, and add a
sign up prompt to the remote follow modal
`@signature_verification_failure_reason` is used in most places but`@signed_verification_failure_reason` appears in two places. Likely those errors are not returned.
* Add keyword filtering
GET|POST /api/v1/filters
GET|PUT|DELETE /api/v1/filters/:id
- Irreversible filters can drop toots from home or notifications
- Other filters can hide toots through the client app
- Filters use a phrase valid in particular contexts, expiration
* Make sure expired filters don't get applied client-side
* Add missing API methods
* Remove "regex filter" from column settings
* Add tests
* Add test for FeedManager
* Add CustomFilter test
* Add UI for managing filters
* Add streaming API event to allow syncing filters
* Fix tests
Conflicts:
app/javascript/mastodon/initial_state.js
db/schema.rb
Upstream added a new field to initial_state.
Not too sure about what happened with db/schema.rb though…
* Send rejections to followers when user hides domain they're on
* Use account domain blocks for "authorized followers" action
Replace soft-blocking (block & unblock) behaviour with follow rejection
* Split sync and async work of account domain blocking
Do not create domain block when removing followers by domain, that
is probably unexpected from the user's perspective.
* Adjust confirmation message for domain block
* yarn manage:translations
* optimize direct timeline
* fix typo in class name
* change filter condition for direct timeline
* fix codestyle issue
* revoke index_accounts_not_silenced because direct timeline does not use it.
* revoke index_accounts_not_silenced because direct timeline does not use it.
* fix rspec test condition.
* fix rspec test condition.
* fix rspec test condition.
* revoke adding column and partial index
* (direct timeline) move merging logic to model
* fix pagination parameter
* add method arguments that switches return array of status or cache_ids
* fix order by
* returns ActiveRecord.Relation in default behavor
* fix codestyle issue
* Track trending tags
- Half-life of 1 day
- Historical usage in daily buckets (last 7 days stored)
- GET /api/v1/trends
Fix#271
* Add trends to web UI
* Don't render compose form on search route, adjust search results header
* Disqualify tag from trends if it's in disallowed hashtags setting
* Count distinct accounts using tag, ignore silenced accounts
Conflicts:
app/javascript/styles/mastodon-light.scss
config/locales/en.yml
config/locales/fr.yml
config/locales/simple_form.pl.yml
config/themes.yml
Conflicts resolved by deleting config/themes.yml,
marking app/javascript/styles/mastodon-light.scss as added,
and taking all new translation strings, not removing anything from
them.
* Add preference to hide following/followers lists
- Public pages
- ActivityPub collections (does not return pages but does give total)
- REST API (unless it's your own) (does not federate)
Fix#6901
* Add preference
* Add delegation
* Fix issue
* Fix issue
permitted_for scope is slow when combined with pinned status scope.
Fortunately permitted_for scope can safely be removed because a pinned
status is always public.
- POST /api/v1/push/subscription
- PUT /api/v1/push/subscription
- DELETE /api/v1/push/subscription
- New OAuth scope: "push" (required for the above methods)
* No need to re-require sidekiq plugins, they are required via Gemfile
* Add derailed_benchmarks tool, no need to require TTY gems in Gemfile
* Replace ruby-oembed with FetchOEmbedService
Reduce startup by 45382 allocated objects
* Remove preloaded JSON-LD in favour of caching HTTP responses
Reduce boot RAM by about 6 MiB
* Fix tests
* Fix test suite by stubbing out JSON-LD contexts
* Fix URL of "Show more" link in paginated threads (ancestors side)
Increase item limits in threads
Fix#7268
* Fix "Show more" link in paginated threads (descendants side)
* Use table for statuses in report
* Display reported account and reporter in the same table
* Split accounts and general report info into two tables again
* Redesign report statuses table, notes, merge notes and action log
* Remove unused translations
* Fix code style issue
* Fix code style issue
* Fix code style issue
* Added a timeline for Direct statuses
* Lists all Direct statuses you've sent and received
* Displayed in Getting Started
* Streaming server support for direct TL
* Changes to match other timelines in 2.0
Commit 519119f657 missed a change for
stream entry page. Instead of duplicating the change, redirect to account
status page. It would also help crawlers (of search engines, for example)
to understand a stream entry URL and its corresponding status URL points
to the same page.
* Add bio fields
- Fix#3211
- Fix#232
- Fix#121
* Display bio fields in web UI
* Fix output of links and missing fields
* Federate bio fields over ActivityPub as PropertyValue
* Improve how the fields are stored, add to Edit profile form
* Add rel=me to links in fields
Fix#121
This also limits the statuses returned by API, but pagination is not
implemented in Web API yet. I still expect it brings user experience
better than making a user wait to fetch all ancestor statuses and flooding
the column with them.
* Further improvements to Reports UI
- Clean up notes display
- Clean up add new note form
- Simplify controller
- Allow reopening a report with a note
- Show created at date for reports
- Fix report details table formatting
* Show history of report using Admin::ActionLog beneath the report
* Fix incorrect log message when reopening a report
* Implement fetching of all ActionLog items that could be related to the report
* Ensure adding a report_note updates the report's updated_at
* Limit Report History to actions that happened between the report being created and the report being resolved
* Fix linting issues
* Improve report history builder
Thanks @gargron for the improvements
* Admin: Show unconfirmed email address on account page
* Admin: Allow staff to change user email addresses
* ActionLog: On change_email, log current email address and new unconfirmed email address
Conflicts:
app/serializers/initial_state_serializer.rb
The glitch flavour isn't yet pulling custom emoji data on its own (see
https://github.com/tootsuite/mastodon/pull/7047). Once that gets into
the glitch flavour, we can eliminate the custom_emojis load.
* Enable updating additional account information from user preferences via rest api
Resolves#6553
* Pacify rubocop
* Decoerce incoming settings in UserSettingsDecorator
* Create user preferences hash directly from incoming credentials instead of going through ActionController::Parameters
* Clean up user preferences update
* Use ActiveModel::Type::Boolean instead of manually checking stringified number equivalence
* Fix follow/unfollow buttons on public profile
- Present non-logged users with web+mastodon:// URLs for remote accounts
- Present logged-in users with appropriate links (authorize_follows and
remote_unfollows) for remote accounts
* Do not cache rendered cards if user is logged in
Previously these returns 302 redirects instead of 403s, which meant posting links to admin pages in slack caused them to unfurl, rather than stay as a link. Additionally, require_admin! doesn't appear to be actively used, on require_staff!
* Implement Assignment of Reports (#6967)
* Change translation of admin.report.comment.label to "Report Comment" for clarity
As we'll soon add the ability for reports to have comments on them, this clarification makes sense.
* Implement notes for Reports
This enables moderators to leave comments about a report whilst they work on it
* Fix display of report moderation notes
* Allow reports to be reopened / marked as unresolved
* Redirect to reports listing upon resolution of report
* Implement "resolve with note" functionality
* Add inverse relationship for report notes
* Remove additional database querying when loading report notes
* Fix tests for reports
* Fix localisations for report notes / reports
Previously the default locale was set by Localized concern for controllers,
but it was not enforced for mailers.
config is enforced throughout the application and an appropriate place to
set the default locale.
Use Rails smart boolean cast to account for values such as "f",
"0", "false", etc. Previously, if a param was present in the request,
it would count as true.
* Fix prev/next links on public profile page
* Don't make pagination urls if no available statuses
* Fix empty check method
* Put left chevron before prev page link
* Add scope for pagination "starting at" a given id
* Status pagination try 2:
s/prev/older and s/next/newer
"older" on left, "newer" on right
Use new scope for "newer" link
Extract magic 20 page size to constant
Remove max_id from feed pagination as it's not respected
* Reinstate max_id for accounts atom stream
* normalize
* Redesign landing page (again)
* Move login form in small version to the right column
* Display closed registrations message
* Add site setting for the hero image
* Fix test
* Increase spacing, maximum width, change call to action section
* Add focus param to media API, center thumbnails on focus point
* Add UI for setting a focal point
* Improve focal point icon on upload item
* Use focal point in upload preview
* Add focalPoint property to ActivityPub
* Don't show focal point button for non-image attachments
* Fix#201: Account archive download
* Export actor and private key in the archive
* Optimize BackupService
- Add conversation to cached associations of status, because
somehow it was forgotten and is source of N+1 queries
- Explicitly call GC between batches of records being fetched
(Model class allocations are the worst offender)
- Stream media files into the tar in 1MB chunks
(Do not allocate media file (up to 8MB) as string into memory)
- Use #bytesize instead of #size to calculate file size for JSON
(Fix FileOverflow error)
- Segment media into subfolders by status ID because apparently
GIF-to-MP4 media are all named "media.mp4" for some reason
* Keep uniquely generated filename in Paperclip::GifTranscoder
* Ensure dumped files do not overwrite each other by maintaing directory partitions
* Give tar archives a good name
* Add scheduler to remove week-old backups
* Fix code style issue
* Add option to show only local toots in timeline preview
Right know, toots from all the known fediverse are shown in the main
page of an instance. That however doesn't reflect the instance itself.
With this option the admin may choose to display only local toots so
that users checking the instance get a better idea of internal
conversations.
* Fix issues pointed by codeclimate and eslint
* Add default message for community timeline
* Update pl.yml
UserTrackingConcern is circumvented by SessionsController#create
because it calls warden, which calls the User#update_tracked_fields!
method directly. Move returning user logic to that method.
* Fix regeneration marker not being removed after completion
* Return HTTP 206 from /api/v1/timelines/home if regeneration in progress
Prioritize RegenerationWorker by putting it into default queue
* Display loading indicator and poll home timeline while it regenerates
* Add graphic to regeneration message
* Make "not found" indicator consistent with home regeneration
CSRF token checking was enabled for API controllers in #6223,
producing "Can't verify CSRF token authenticity" log spam. This
disables logging of failed CSRF checks.
This also changes the protection strategy for
PushSubscriptionsController to use exceptions, making it consistent
with other controllers that use sessions.
If a flavour has only one skin, the skin selector will be omitted. This
omits the user[setting_skin] field, and because that's the only
user[...] field on the page, the entire user object will not be present
in the request handler's params object.
This commit accounts for that scenario by avoiding params.require(:user)
and instead picking out what we need from the params hash.
* Allow HTTP caching of json view of public statuses
HTML views are not cached as they can contain private statuses as well
* Disable session cookies for ActivityPub json rendering of public toots
* Add confirmation step for email changes
This adds a confirmation step for email changes of existing users.
Like the initial account confirmation, a confirmation link is sent
to the new address.
Additionally, a notification is sent to the existing address when
the change is initiated. This message includes instruction to reset
the password immediately or to contact the instance admin if the
change was not initiated by the account owner.
Fixes#3871
* Add review fixes
* Add GET /api/v1/instance/peers API to reveal known domains
* Add GET /api/v1/instance/activity API
* Make new APIs disableable, exclude private statuses from activity stats
* Fix code style issue
* Fix week timestamps
* Make host_meta/webfinger replies cacheable (fixes#6100)
Drop common code for handling users and sessions as webfinger queries
are very basic, public APIs.
Also explicitly mark results as cacheable with “expires_in”.
* Add “Vary: Accept” header for caching since content-negociation is used
Specifically, this commit:
- changes S::TFA::{Confirmations,RecoveryCodes}Controller to derive from
S::BaseController, because this gives us the necessary actions and
packs
- prepends set_pack to Auth::SessionsController's action chain so that
it takes effect in time for render :two_factor
The specs for Settings::DeletesController include an example that
sets Settings.open_deletion to false and expects the "if deletion is not
available, redirect to root" logic to run. However, this spec does not
set up a user, which means that the spec (intentionally or otherwise)
expects this redirection to work with unauthenticated access.
We should preserve that behavior. To do so, we prepend the deletion
check to the action chain set up by Settings::BaseController, so that
said check occurs before the authenticate_user! check.
* Add list of lists component to web UI
* Add list adding
* Add list removing
* List editor modal
* Add API account search limited by following=true relation
* Rework list editor modal
* Remove mandatory pagination of GET /api/v1/lists/:id/accounts
* Adjust search input placeholder
* Fix rspec (#5890)
* i18n: (zh-CN) Add missing translations for #5811 (#5891)
* i18n: (zh-CN) yarn manage:translations -- zh-CN
* i18n: (zh-CN) Add missing translations for #5811
* Fix some issues
- Display loading/missing state for list timelines
- Order lists alphabetically in overview
- Fix async list editor reset
- Redirect to /lists after deleting unpinned list
- Redirect to / after pinning a list
* Remove dead list columns when a list is deleted or fetch returns 404
* Allow hiding of reblogs from followed users
This adds a new entry to the account menu to allow users to hide
future reblogs from a user (and then if they've done that, to show
future reblogs instead).
This does not remove or add historical reblogs from/to the user's
timeline; it only affects new statuses.
The API for this operates by sending a "reblogs" key to the follow
endpoint. If this is sent when starting a new follow, it will be
respected from the beginning of the follow relationship (even if
the follow request must be approved by the followee). If this is
sent when a follow relationship already exists, it will simply
update the existing follow relationship. As with the notification
muting, this will now return an object ({reblogs: [true|false]}) or
false for each follow relationship when requesting relationship
information for an account. This should cause few issues due to an
object being truthy in many languages, but some modifications may
need to be made in pickier languages.
Database changes: adds a show_reblogs column (default true,
non-nullable) to the follows and follow_requests tables. Because
these are non-nullable, we use the existing MigrationHelpers to
perform this change without locking those tables, although the
tables are likely to be small anyway.
Tests included.
See also <https://github.com/glitch-soc/mastodon/pull/212>.
* Rubocop fixes
* Code review changes
* Test fixes
This patchset closes#648 and resolves#3271.
* Rubocop fix
* Revert reblogs defaulting in argument, fix tests
It turns out we needed this for the same reason we needed it in muting:
if nil gets passed in somehow (most usually by an API client not passing
any value), we need to detect and handle it.
We could specify a default in the parameter and then also catch nil, but
there's no great reason to duplicate the default value.
* Add consumable invites
* Add UI for generating invite codes
* Add tests
* Display max uses and expiration in invites table, delete invite
* Remove unused column and redundant validator
- Default follows not used, probably bad idea
- InviteCodeValidator is redundant because RegistrationsController
checks invite code validity
* Add admin setting to disable invites
* Add admin UI for invites, configurable role for invite creation
- Admin UI that lists everyone's invites, always available
- Admin setting min_invite_role to control who can invite people
- Non-admin invite UI only visible if users are allowed to
* Do not remove invites from database, expire them instantly
