* Add model for custom filter keywords
* Use CustomFilterKeyword internally
Does not change the API
* Fix /filters/edit and /filters/new
* Add migration tests
* Remove whole_word column from custom_filters (covered by custom_filter_keywords)
* Redesign /filters
Instead of a list, present a card that displays more information and handles
multiple keywords per filter.
* Redesign /filters/new and /filters/edit to add and remove keywords
This adds a new gem dependency: cocoon, as well as a npm dependency:
cocoon-js-vanilla. Those are used to easily populate and remove form fields
from the user interface when manipulating multiple keyword filters at once.
* Add /api/v2/filters to edit filter with multiple keywords
Entities:
- `Filter`: `id`, `title`, `filter_action` (either `hide` or `warn`), `context`
`keywords`
- `FilterKeyword`: `id`, `keyword`, `whole_word`
API endpoits:
- `GET /api/v2/filters` to list filters (including keywords)
- `POST /api/v2/filters` to create a new filter
`keywords_attributes` can also be passed to create keywords in one request
- `GET /api/v2/filters/:id` to read a particular filter
- `PUT /api/v2/filters/:id` to update a new filter
`keywords_attributes` can also be passed to edit, delete or add keywords in
one request
- `DELETE /api/v2/filters/:id` to delete a particular filter
- `GET /api/v2/filters/:id/keywords` to list keywords for a filter
- `POST /api/v2/filters/:filter_id/keywords/:id` to add a new keyword to a
filter
- `GET /api/v2/filter_keywords/:id` to read a particular keyword
- `PUT /api/v2/filter_keywords/:id` to edit a particular keyword
- `DELETE /api/v2/filter_keywords/:id` to delete a particular keyword
* Change from `irreversible` boolean to `action` enum
* Remove irrelevent `irreversible_must_be_within_context` check
* Fix /filters/new and /filters/edit with update for filter_action
* Fix Rubocop/Codeclimate complaining about task names
* Refactor FeedManager#phrase_filtered?
This moves regexp building and filter caching to the `CustomFilter` class.
This does not change the functional behavior yet, but this changes how the
cache is built, doing per-custom_filter regexps so that filters can be matched
independently, while still offering caching.
* Perform server-side filtering and output result in REST API
* Fix numerous filters_changed events being sent when editing multiple keywords at once
* Add some tests
* Use the new API in the WebUI
- use client-side logic for filters we have fetched rules for.
This is so that filter changes can be retroactively applied without
reloading the UI.
- use server-side logic for filters we haven't fetched rules for yet
(e.g. network error, or initial timeline loading)
* Minor optimizations and refactoring
* Perform server-side filtering on the streaming server
* Change the wording of filter action labels
* Fix issues pointed out by linter
* Change design of “Show anyway” link in accordence to review comments
* Drop “irreversible” filtering behavior
* Move /api/v2/filter_keywords to /api/v1/filters/keywords
* Rename `filter_results` attribute to `filtered`
* Rename REST::LegacyFilterSerializer to REST::V1::FilterSerializer
* Fix systemChannelId value in streaming server
* Simplify code by removing client-side filtering code
The simplifcation comes at a cost though: filters aren't retroactively
applied anymore.
* Fix null values being included in some indexes
* Update lib/mastodon/migration_helpers.rb
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add documentation link to corruption error message
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Change how changes to media attachments are stored for edits
Fix not being able to re-order media attachments
* Fix not broadcasting updates when polls/media is changed through ActivityPub
* Various fixes and improvements
* Update app/models/report.rb
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add tracking of media attachment description changes
* Change poll in status edit to have a structure closer to the real one
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add `/api/v1/accounts/familiar_followers` to REST API
* Change hide network preference to be stored consistently for local and remote accounts
* Add dummy classes to migration
* Apply suggestions from code review
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add trending statuses
* Fix dangling items with stale scores in localized sets
* Various fixes and improvements
- Change approve_all/reject_all to approve_accounts/reject_accounts
- Change Trends::Query methods to not mutate the original query
- Change Trends::Query#skip to offset
- Change follow recommendations to be refreshed in a transaction
* Add tests for trending statuses filtering behaviour
* Fix not applying filtering scope in controller
* Add appeals
* Add ability to reject appeals and ability to browse pending appeals in admin UI
* Add strikes to account page in settings
* Various fixes and improvements
- Add separate notification setting for appeals, separate from reports
- Fix style of links in report/strike header
- Change approving an appeal to not restore statuses (due to federation complexities)
- Change style of successfully appealed strikes on account settings page
- Change account settings page to only show unappealed or recently appealed strikes
* Change appealed_at to overruled_at
* Fix missing method error
Some Mastodon versions (v1.1 and v1.2) had a duplicate index in `db/schema.rb`
without any migration script creating it. #2224 (included in v1.3) removed the
duplicate index from the file but did not provide a migration script to remove
it.
This means that any instance that was installed from v1.1 or v1.2's source code
has a duplicate index and a corresponding warning in PgHero. Instances set up
using an earlier or later Mastodon version do not have this issue.
This PR removes the duplicate index if it is present.
* Add support for editing for published statuses
* Fix references to stripped-out code
* Various fixes and improvements
* Further fixes and improvements
* Fix updates being potentially sent to unauthorized recipients
* Various fixes and improvements
* Fix wrong words in test
* Fix notifying accounts that were tagged but were not in the audience
* Fix mistake
* Add trending links
* Add overriding specific links trendability
* Add link type to preview cards and only trend articles
Change trends review notifications from being sent every 5 minutes to being sent every 2 hours
Change threshold from 5 unique accounts to 15 unique accounts
* Fix tests
* Add account statuses cleanup policy model
* Record last inspected toot to delete to speed up successive calls to statuses_to_delete
* Add service to cleanup a given account's statuses within a budget
* Add worker to go through account policies and delete old toots
* Fix last inspected status id logic
All existing statuses older or equal to last inspected status id must be
kept by the current policy. This is an invariant that must be kept so that
resuming deletion from the last inspected status remains sound.
* Add tests
* Refactor scheduler and add tests
* Add user interface
* Add support for discriminating based on boosts/favs
* Add UI support for min_reblogs and min_favs, rework UI
* Address first round of review comments
* Replace Snowflake#id_at_start with with_random parameter
* Add tests
* Add tests for StatusesCleanupController
* Rework settings page
* Adjust load-avoiding mechanisms
* Please CodeClimate
* Change references to tootsuite/mastodon to mastodon/mastodon
* Remove obsolete test fixture
* Replace occurrences of tootsuite/mastodon with mastodon/mastodon in CHANGELOG
And a few other places
Materializing those views can take a while, and they are currently refreshed
anyway each time they are actually used, in the FollowRecommendationsScheduler.
Express follow_recommendations in terms of account_summaries rather than
accounts, integrate filters that are unconditionally used, and materialize
the resulting view.
This should result in the bulk of the computation being performed only once
instead of **once per recommendation language**.
Prevent new accounts from being created using the same underlying
e-mail as a suspended account using extensions and period
permutations. Stores e-mails as a SHA256 hash
* Use ActiveRecord::Result#to_ary instead of deprecated to_hash
They do the same thing, and to_hash has been removed from Rails 6.1
* Explicitly name polymorphic indexes to workaround a bug in Rails 6.1
cf. https://github.com/rails/rails/issues/41693
* Fix incorrect usage of “foreign_key” in migration script
* Use `ActiveModel::Errors#delete` instead of deprecated clear method
* Fix link headers tests on Rails 6.1
Rails 6.1 adds values to the Link header by default, thus it is not a
LinkHeader object anymore. Fix the test to parse the Link header instead
of assuming it is a LinkHeader.
* Prepare Mastodon for zeitwerk autoloader (Rails 6)
Add inflections and rename/move a few classes.
In particular, app/lib/exceptions.rb and app/lib/sanitize_config.rb
were manually loaded while still in autoload paths.
* Add inflection for Url → URL
* Fix old migration script not being able to run if it fails midway
Improve the robustness of a migration script likely to fail because of database
corruption so it can run again once database corruptions are fixed.
* Display a specific error message in case of index corruption
Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add indication to admin UI of whether a report has been forwarded
* Rework how forwarded status is displayed
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
* Add bell button
Fix#4890
* Remove duplicate type from post-deployment migration
* Fix legacy class type mappings
* Improve query performance with better index
* Fix validation
* Remove redundant index from notifications
* Add database support for list show-reply preferences
* Add backend support to read and update list-specific show_replies settings
* Add basic UI to set list replies setting
* Add specs for list replies policy
* Switch "cycling" reply policy link to a set of radio inputs
* Capitalize replies_policy strings
* Change radio button design to be consistent with that of the directory explorer
* feat: add possibility of adding WebAuthn security keys to use as 2FA
This adds a basic UI for enabling WebAuthn 2FA. We did a little refactor
to the Settings page for editing the 2FA methods – now it will list the
methods that are available to the user (TOTP and WebAuthn) and from
there they'll be able to add or remove any of them.
Also, it's worth mentioning that for enabling WebAuthn it's required to
have TOTP enabled, so the first time that you go to the 2FA Settings
page, you'll be asked to set it up.
This work was inspired by the one donde by Github in their platform, and
despite it could be approached in different ways, we decided to go with
this one given that we feel that this gives a great UX.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: add request for WebAuthn as second factor at login if enabled
This commits adds the feature for using WebAuthn as a second factor for
login when enabled.
If users have WebAuthn enabled, now a page requesting for the use of a
WebAuthn credential for log in will appear, although a link redirecting
to the old page for logging in using a two-factor code will also be
present.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: add possibility of deleting WebAuthn Credentials
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: disable WebAuthn when an Admin disables 2FA for a user
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: remove ability to disable TOTP leaving only WebAuthn as 2FA
Following examples form other platforms like Github, we decided to make
Webauthn 2FA secondary to 2FA with TOTP, so that we removed the
possibility of removing TOTP authentication only, leaving users with
just WEbAuthn as 2FA. Instead, users will have to click on 'Disable 2FA'
in order to remove second factor auth.
The reason for WebAuthn being secondary to TOPT is that in that way,
users will still be able to log in using their code from their phone's
application if they don't have their security keys with them – or maybe
even lost them.
* We had to change a little the flow for setting up TOTP, given that now
it's possible to setting up again if you already had TOTP, in order to
let users modify their authenticator app – given that now it's not
possible for them to disable TOTP and set it up again with another
authenticator app.
So, basically, now instead of storing the new `otp_secret` in the
user, we store it in the session until the process of set up is
finished.
This was because, as it was before, when users clicked on 'Edit' in
the new two-factor methods lists page, but then went back without
finishing the flow, their `otp_secret` had been changed therefore
invalidating their previous authenticator app, making them unable to
log in again using TOTP.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* refactor: fix eslint errors
The PR build was failing given that linting returning some errors.
This commit attempts to fix them.
* refactor: normalize i18n translations
The build was failing given that i18n translations files were not
normalized.
This commits fixes that.
* refactor: avoid having the webauthn gem locked to a specific version
* refactor: use symbols for routes without '/'
* refactor: avoid sending webauthn disabled email when 2FA is disabled
When an admins disable 2FA for users, we were sending two mails
to them, one notifying that 2FA was disabled and the other to notify
that WebAuthn was disabled.
As the second one is redundant since the first email includes it, we can
remove it and send just one email to users.
* refactor: avoid creating new env variable for webauthn_origin config
* refactor: improve flash error messages for webauthn pages
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* Add UserNote model
* Add UI for user notes
* Put comment in relationships entity
* Add API to create user notes
* Copy user notes to new account when receiving a Move activity
* Address some of the review remarks
* Replace modal by inline edition
* Please CodeClimate
* Button design changes
* Change design again
* Cancel note edition when pressing Escape
* Fixes
* Tweak design again
* Move “Add note” item, and allow users to add notes to themselves
* Rename UserNote into AccountNote, rename “comment” Relationship attribute to “note”
- Change audio files to not be stripped of metadata
- Automatically extract cover art from audio if it exists
- Add `thumbnail` parameter to `POST /api/v1/media`, `POST /api/v2/media` and `PUT /api/v1/media/:id`
- Add `icon` to represent it in attachments in ActivityPub
- Fix `preview_url` containing URL of missing missing image when there is no thumbnail instead of null
- Fix duration of audio not being displayed on public pages until the file is loaded
This should not be an issue in practice because of the Rails-level uniqueness
check, but local accounts having a NULL domain means the uniqueness constraint
did not apply to them (since no two NULL values are considered equal).
There are no obvious ways it could be misused, as the secret is not
really used for anything, but it is best to secure it for the future
Follow-up to #13613
* Fix PostgreSQL load when linking in announcements
Fixes#13245 by caching status lookups
Since statuses are supposed to be known already and we only
need their URLs and a few other things, caching them should
be fine.
Since it's only used by announcements so far, there won't
be much statuses to cache.
* Perform status lookup when saving announcements, not when rendering them
* Change EntityCache#status to fetch URLs instead of looking into the database
* Move announcement link lookup to publishing worker
* Address issues pointed out during review
* Change ActivityPub follower/following collections to not link first page
* Add support for hiding followers and following of remote users
* Switch to using a single `hide_collections` column
* Address code style remarks
* Add announcements
Fix#11006
* Add reactions to announcements
* Add admin UI for announcements
* Add unit tests
* Fix issues
- Add `with_dismissed` param to announcements API
- Fix end date not being formatted when time range is given
- Fix announcement delete causing reactions to send streaming updates
- Fix announcements container growing too wide and mascot too small
- Fix `all_day` being settable when no time range is given
- Change text "Update" to "Announcement"
* Fix scheduler unpublishing announcements before they are due
* Fix filter params not being passed to announcements filter
Fixes#12690
The `strong_migrations` update from ba2eac8824
introduced a check for `change_column_null` specific to Postgres. This rejects
old migrations.
This commit just wraps old migrations with `safety_assured` to bypass this
check. Alternatives would have been to:
- Disable that check entirely (a possibility added in that same
`strong_migrations` version) for Mastodon, but it makes sense to write new
migrations without such a strong lock.
- Rewrite the old migrations to do it in a way that do not require an exclusive
lock. I thought fixing those old migrations for performance wasn't worth the
pain. Also, if I understand correctly, the next version of
`strong_migrations` is going to include a helper to do that. We could update
those migrations at that point.
* Add backend support for bookmarks
Bookmarks behave like favourites, except they aren't shared with other
users and do not have an associated counter.
* Add spec for bookmark endpoints
* Add front-end support for bookmarks
* Introduce OAuth scopes for bookmarks
* Add bookmarks to archive takeout
* Fix migration
* Coding style fixes
* Fix rebase issue
* Update bookmarked_statuses to latest UI changes
* Update bookmark actions to properly reflect status changes in state
* Add bookmarks item to single-column layout
* Make active bookmarks red
* Add ability to add oneself to lists
* Change search results to include oneself when searching through followers
* Mark follow relation as optional in ListAccount
* Add voters count to polls
* Add ActivityPub serialization and parsing of voters count
* Add support for voters count in WebUI
* Move incrementation of voters count out of redis lock
* Reword “voters” to “people”
* Add soft delete for statuses to allow them to appear instant
* Allow reporting soft-deleted statuses and show them in the admin UI
* Change index for getting an account's statuses
* Add more accurate hashtag search
Using ElasticSearch to index hashtags with edge n-grams and score
them by usage within the last 7 days since last activity. Only
hashtags that have been reviewed and are listable can appear in
searches, unless they match the query exactly
* Fix search analyzer dropping non-ascii characters
* Add database columns for adding notes to domain blocks/restrctions
* Add admin UI to set private and public comments when blocking a domain
* Add text for private and public comments on domain blocks
* Show domain block comments in admin UI
* Add comments to the domain block undo page
* Make UnblockDomainService more robust regarding upgraded domain blocks
* Allow editing domain blocks
* Rename button from “undo domain block” to “view domain block” in account admin UI
* Change test to unsilence silenced users from upgraded blocks
Fix#271
Add back the `GET /api/v1/trends` API with the caveat that it does
not return tags that have not been allowed to trend by the staff.
When a hashtag begins to trend (internally) and that hashtag has
not been previously reviewed by the staff, the staff is notified.
The new admin UI for hashtags allows filtering hashtags by where
they are used (e.g. in the profile directory), whether they have
been reviewed or are pending reviewal, they show by how many people
the hashtag is used in the directory, how many people used it
today, how many statuses with it have been created today, and it
allows fixing the name of the hashtag to make it more readable.
The disallowed hashtags feature has been reworked. It is now
controlled from the admin UI for hashtags instead of from
the file `config/settings.yml`
* Add support for an instance actor
* Skip username validation for local Application accounts
* Add migration script to create instance actor
* Make Codeclimate happy
* Switch to id -99 for instance actor
* Remove unused `icon` and `image` attributes from instance actor
* Use if/elsif/else instead of return + ternary operator
* Add instance actor to fresh installs
* Use instance actor as instance representative
Use instance actor for forwarding reports, relay operations, and spam
auto-reporting.
* Seed database in test environment
* Fix single-user mode
* Fix tests
* Fix specs to accomodate for an extra `Account`
* Auto-reject follows on instance actor
Following an instance actor might make sense, but we are not handling that
right now, so auto-reject.
* Fix webfinger lookup and serialization for instance actor
* Rename instance actor
* Make it clear in the HTML view that the instance actor should not be blocked
* Raise cache time for instance actor as there's no dynamic content
* Re-use /about/more with a flash message for instance actor profile
* Add a spam check
* Use Nilsimsa to generate locality-sensitive hashes and compare using Levenshtein distance
* Add more tests
* Add exemption when the message is a reply to something that mentions the sender
* Use Nilsimsa Compare Value instead of Levenshtein distance
* Use MD5 for messages shorter than 10 characters
* Add message to automated report, do not add non-public statuses to
automated report, add trust level to accounts and make unsilencing
raise the trust level to prevent repeated spam checks on that account
* Expire spam check data after 3 months
* Add support for local statuses, reduce expiration to 1 week, always create a report
* Add content warnings to the spam check and exempt empty statuses
* Change Nilsimsa threshold to 95 and make sure removed statuses are removed from the spam check
* Add all matched statuses into automatic report
* Record account suspend/silence time and keep track of domain blocks
* Also unblock users who were suspended/silenced before dates were recorded
* Add tests
* Keep track of suspending date for users suspended through the CLI
* Show accurate number of accounts that would be affected by unsuspending an instance
* Change migration to set silenced_at and suspended_at
* Revert "Also unblock users who were suspended/silenced before dates were recorded"
This reverts commit a015c65d2d.
* Switch from using suspended and silenced to suspended_at and silenced_at
* Add post-deployment migration script to remove `suspended` and `silenced` columns
* Use Account#silence! and Account#suspend! instead of updating the underlying property
* Add silenced_at and suspended_at migration to post-migration
* Change account fabricator to translate suspended and silenced attributes
* Minor fixes
* Make unblocking domains always retroactive
* Add blurhash
* Use fallback color for spoiler when blurhash missing
* Federate the blurhash and accept it as long as it's at most 5x5
* Display unknown media attachments as blurhash placeholders
* Improve style of embed actions and spoiler button
* Change blurhash resolution from 3x3 to 4x4
* Improve dependency definitions
* Fix code style issues
* Add "why do you want to join" field to invite requests
Fix#10512
* Remove unused translations
* Fix broken registrations when no invite request text is submitted
* create account_identity_proofs table
* add endpoint for keybase to check local proofs
* add async task to update validity and liveness of proofs from keybase
* first pass keybase proof CRUD
* second pass keybase proof creation
* clean up proof list and add badges
* add avatar url to keybase api
* Always highlight the “Identity Proofs” navigation item when interacting with proofs.
* Update translations.
* Add profile URL.
* Reorder proofs.
* Add proofs to bio.
* Update settings/identity_proofs front-end.
* Use `link_to`.
* Only encode query params if they exist.
URLs without params had a trailing `?`.
* Only show live proofs.
* change valid to active in proof list and update liveness before displaying
* minor fixes
* add keybase config at well-known path
* extremely naive feature flagging off the identity proof UI
* fixes for rubocop
* make identity proofs page resilient to potential keybase issues
* normalize i18n
* tweaks for brakeman
* remove two unused translations
* cleanup and add more localizations
* make keybase_contacts an admin setting
* fix ExternalProofService my_domain
* use Addressable::URI in identity proofs
* use active model serializer for keybase proof config
* more cleanup of keybase proof config
* rename proof is_valid and is_live to proof_valid and proof_live
* cleanup
* assorted tweaks for more robust communication with keybase
* Clean up
* Small fixes
* Display verified identity identically to verified links
* Clean up unused CSS
* Add caching for Keybase avatar URLs
* Remove keybase_contacts setting
* Add polls
Fix#1629
* Add tests
* Fixes
* Change API for creating polls
* Use name instead of content for votes
* Remove poll validation for remote polls
* Add polls to public pages
* When updating the poll, update options just in case they were changed
* Fix public pages showing both poll and other media
* Add hashtag filter to profiles
GET /@:username/tagged/:hashtag
GET /api/v1/accounts/:id/statuses?tagged=:hashtag
* Display featured hashtags on public profile
* Use separate model for featured tags
* Update featured hashtag counters on-write
* Limit featured tags to 10
* Add Tombstone model to remember object deletion
* Do not recreate a status if it has been deleted
* Record Tombstone for remote deleted items
Also, only record deleted items from same-host actors
* Clear an user's tombstones when their key change
* Add REST API for creating an account
The method is available to apps with a token obtained via the client
credentials grant. It creates a user and account records, as well as
an access token for the app that initiated the request. The user is
unconfirmed, and an e-mail is sent as usual.
The method returns the access token, which the app should save for
later. The REST API is not available to users with unconfirmed
accounts, so the app must be smart to wait for the user to click a
link in their e-mail inbox.
The method is rate-limited by IP to 5 requests per 30 minutes.
* Redirect users back to app from confirmation if they were created with an app
* Add tests
* Return 403 on the method if registrations are not open
* Require agreement param to be true in the API when creating an account
* Add moderation warnings
Replace individual routes for disabling, silencing, and suspending
a user, as well as the report update route, with a unified account
action controller that allows you to select an action (none,
disable, silence, suspend) as well as whether it should generate an
e-mail notification with optional custom text. That notification,
with the optional custom text, is saved as a warning.
Additionally, there are warning presets you can configure to save
time when performing the above.
* Use Account#local_username_and_domain
* Make custom emoji domains case sensitive #9351
* Fixup style in downcase_domain to comply with codeclimate.
* switch if! to unless
* Don't use transactions, operate in batches.
Also revert spurious schema change.
* fix: change Identity's id column to a bigint
This appears to be the last model created using a 5.0 migration,
where column types defaulted to `integer` rather than `bigint`.
This migration changes the column type to match that of all of the
other ID columns.
* Change user_id column in identities to bigint and fix down-migration
* Add locality check to ActivityPub::FetchRemoteAccountService
Fix#8643
Because there are a few places where it is called, it is difficult
to confirm if they all previously checked it for locality. It's better
to make sure within the service.
* Remove faux-remote duplicates of local accounts
* Add silent column to mentions
* Save silent mentions in ActivityPub Create handler and optimize it
Move networking calls out of the database transaction
* Add "limited" visibility level masked as "private" in the API
Unlike DMs, limited statuses are pushed into home feeds. The access
control rules between direct and limited statuses is almost the same,
except for counter and conversation logic
* Ensure silent column is non-null, add spec
* Ensure filters don't check silent mentions for blocks/mutes
As those are "this person is also allowed to see" rather than "this
person is involved", therefore does not warrant filtering
* Clean up code
* Use Status#active_mentions to limit returned mentions
* Fix code style issues
* Use Status#active_mentions in Notification
And remove stream_entry eager-loading from Notification
* 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
