* Fix already-known remote private toots not being searchable by URL
Whenever an URL search fails, and an account is provided, try getting a
private status matching that URL from database.
* Fix searching by `id` field instead of `uri`
* Fix being able to follow oneself by moving to an account that was following the old one
* Add specs
* Add spec to catch MoveWorker issue with local followers following both accounts
* Fix move worker breaking when a local account follows both source and target accounts
* Fix migration from remote to local account not sending Undo Follow
* Fix show_reblogs not being preserved for moved account's followers
* 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 test to handle suspended and missing users in BootstrapTimelineService
* Fix BootstrapTimelineService crashing when bootstrapped accounts are invalid
* 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”
* Change silenced accounts to require approval on follow
* Also require approval for follows by people explicitly muted by target accounts
* Do not auto-accept silenced or muted accounts when switching from locked to unlocked
* Add `follow_requests_count` to verify_credentials
* Show “Follow requests” menu item if needed even if account is locked
* Add tests
* Correctly reflect that follow requests weren't auto-accepted when local account is silenced
* Accept follow requests from user-muted accounts to avoid leaking mutes
The reason for unattaching media instead of removing it is to support
delete & redraft functionality, but remote or staff-removed statuses
will never be redrafted, so the media should be deleted immediately
* 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
- Restrict followers counts to local users to minimize local advantage
- Fix emoji shortcodes causing error in search
- Fix search syntax parse errors not being caught
* Add more accurate account search
When ElasticSearch is available, a more accurate search is implemented:
- Using edge n-gram index for acct and display name
- Using asciifolding and cjk width normalization on display names
- Using Gaussian decay on account activity for additional scoring (recency)
- Using followers/friends ratio for additional scoring (spamminess)
- Using followers number for additional scoring (size)
The exact match precedence only takes effect when the input conforms
to the username format and the username part of it is complete, i.e.
when the user started typing the domain part.
* Support single-letter usernames
* Fix tests
* Fix not picking up account updates
* Add weights and normalization for scores, skip zero terms queries
* Use local counts for accounts index, adjust search parameters
* Fix mistakes
* Using updated_at of accounts is inadequate for remote accounts
* 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
* 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
* Fix BackupService crashing when an attachment is missing
For various reasons such as admin error or out-of-sync media and
database backups, it might be possible for local attachments to be lost.
This commit allows the BackupService to continue its work even if some media
file is missing.
* Change error message
* Remove Salmon and PubSubHubbub endpoints
* Add error when trying to follow OStatus accounts
* Fix new accounts not being created in ResolveAccountService
* Change domain blocks to automatically support subdomains
If a more authoritative domain is blocked (example.com), then the
same block will be applied to a subdomain (foo.example.com)
* Match subdomains of existing accounts when blocking/unblocking domains
* Improve code style
* Add audio uploads
Fix#4827
Accept uploads of OGG, WAV, FLAC, OPUS and MP3 files, and converts
them to OGG. Media attachments get a new `audio` type. In the UI,
audio uploads are displayed identically to video uploads.
* Improve code style
* 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 a015c65d2d1e28c7b7cfab8b3f8cd5fb48b8b71c.
* 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
The @property attribute in HTML is a space-separated list of values.
This change normalizes whitespace and finds the desired value in
the list instead of requiring an exact single-value match.
More details:
https://www.ctrl.blog/entry/rdfa-socialmedia-metadata.html
* Refactor imports
* Export show_reblogs when exporting list of followed users
* Add support for importing show_reblogs with following collection
* Fix tests
* Revert "Fix filtering of favourited_by, reblogged_by, followers and following (#10447)"
This reverts commit 0317f37c6f.
* Revert "Hide blocking accounts from blocked users (#10442)"
This reverts commit 4cd944d364.
* Improve blocked view of profiles
- Change "You are blocked" to "Profile unavailable"
- Hide following/followers in API when blocked
- Disable follow button and show "Profile unavailable" on public profile as well
* Revert "Add indication that you have been blocked in web UI (#10420)"
This reverts commit d31affe69b.
* Revert "Add `blocked_by` relationship to the REST API (#10373)"
This reverts commit a8bb10633d.
* Hide blocking accounts from search results
* Filter blocking accouts from account followers
* Filter blocking accouts from account's following accounts
* Filter blocking accounts from “reblogged by” and “favourited by” lists
* Remove blocking account from URL search
* Return 410 on trying to fetch user data from a user who blocked us
* Return 410 in /api/v1/account/statuses for suspended or blocking accounts
* Fix status filtering when performing URL search
* Restore some React improvements
Restore some cleanup from d31affe69b
* Refactor by adding `without_blocking` scope
* Fix poll update handler calling method was that was not available
Fix regression from #10209
* Refactor VoteService
* Refactor ActivityPub::DistributePollUpdateWorker and optimize it
* Fix typo
* Fix typo
* Process incoming poll tallies update
* Send Update on poll vote
* Do not send Updates for a poll more often than once every 3 minutes
* Include voters in people to notify of results update
* Schedule closing poll worker on poll creation
* Add new notification type for ending polls
* Add front-end support for ended poll notifications
* Fix UpdatePollSerializer
* Fix Updates not being triggered by local votes
* Fix tests failure
* Fix web push notifications for closing polls
* Minor cleanup
* Notify voters of both remote and local polls when those close
* Fix delivery of poll updates to mentioned accounts and voters
* 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
* Fetch up to 5 replies when discovering a new remote status
This is used for resolving threads downwards. The originating
server must add a “replies” attributes with such replies for it to
be useful.
* Add some tests for ActivityPub::FetchRepliesWorker
* Add specs for ActivityPub::FetchRepliesService
* Serialize up to 5 public self-replies for ActivityPub notes
* Add specs for ActivityPub::NoteSerializer
* Move exponential backoff logic to a worker concern
* Fetch first page of paginated collections when fetching thread replies
* Add specs for paginated collections in replies
* Move Note replies serialization to a first CollectionPage
The collection isn't actually paginable yet as it has no id nor
a `next` field. This may come in another PR.
* Use pluck(:uri) instead of map(&:uri) to improve performances
* Fix fetching replies when they are in a CollectionPage
* Add type, limit, offset, min_id, max_id, account_id to search API
Fix#8939
* Make the offset work on accounts and hashtags search as well
* Assure brakeman we are not doing mass assignment here
* Do not allow paginating unless a type is chosen
* Fix search query and index id field on statuses instead of created_at
* Skip some methods in BatchedRemoveStatusService when account is nil
Sometimes `bin/tootctl accounts cull` fails with below error:
undefined method `followers_for_local_distribution' for nil:NilClass (NoMethodError)
This commit makes BatchedRemoveStatusService to skip below methods when
`account` is nil:
- unpush_from_home_timelines()
- unpush_from_list_timelines()
- batch_stream_entries()
* Fix rubocop error: Use `next` to skip iteration.
Reject those from accounts with no local followers, from relays
that are not enabled, which do not address local accounts and are
not replies to accounts that do have local followers
* 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
If the first link to be verified contains a rel=me link with a SSL
error, the VerifyAccountLinksWorker will fail and not try the following
links. This rescues the SSL error when fetching the link, avoiding this
issue.
* Add test for not persisting status when attaching media to scheduled toot
* Prevent status used for validation from being persisted to the database
Fixes#9893
Thanks to tateisu for the help investigating this.
Mastodon expects remote servers to remove follow relationships upon receiving
a Block. However, the spec only evokes Block activities in a C2S context, never
in a S2S context.
This PR, in addition to federating the Block, explicitly sends a Reject for any
affected follow relationship, which makes a bit more sense with regards to the
spec.
* 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
* Fix undefined method error in sidekiq
Body can be not nil but still be empty, which causes a
`NoMethodError: undefined method `[]' for nil:NilClass` further in the
code. This checks for an empty body to avoid the issue.
* Fix codeclimate issue
* Refactor signature verification a bit
* Rescue signature verification if recorded public key is invalid
Fixes#8822
* Always re-fetch AP signing key when HTTP Signature verification fails
But when the account is not marked as stale, avoid fetching collections and
media, and avoid webfinger round-trip.
* Apply stoplight to key/account update as well as initial key retrieval
* Use Contact User as Relay, Report, Subscribe.
* Use Account.representative to fetch contact user.
* Use find_local.
* No reason to use Account.representative in subscribe_service.
* Don't required representative!
* Fallback is included in Account.representative method.
* Do not LDS-sign Follow, Accept, Reject, Undo, Block
* Do not use LDS for Create activities of private toots
* Minor cleanup
* Ignore unsigned activities instead of misattributing them
* Use status.distributable? instead of querying visibility directly
* 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 failing test for windows-1251 link cards
* Ignore low-confidence CharlockHolmes guesses
Fixes#9466
* Fix no method error when charlock holmes cannot detect charset
- Some associations were missing from the clean-up
- Some attributes were not reset on suspension
- Skip federation and streaming deletes when purging a dead domain
- Move account association definitions to concern
* 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
* Add profile to json+ld in Accept
It's required by the ActivityPub spec
* Use headers['Content-type'] instead of mime_type
mime_type strips the profile from the content type, but it's still available raw in the headers hash
* Add test for ld+json with profile
* Do not hide boost notifications from followed people with hidden boosts
Not displaying boosts from a followed user in the Home timeline and not
having notifications when they reblog your own content are two very
separate concerns, tying them together seem counter-intuitive and unwanted.
* Update specs accordingly
* 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
UX-wise, people expect that saving the profile will re-check links even without changing fields content. Bug-wise, `@account` was undefined.
Regression from #8703
* Verify link ownership with rel="me"
* Add explanation about verification to UI
* Perform link verifications
* Add click-to-copy widget for verification HTML
* Redesign edit profile page
* Redesign forms
* Improve responsive design of settings pages
* Restore landing page sign-up form
* Fix typo
* Support <link> tags, add spec
* Fix links not being verified on first discovery and passive updates
* If an Update is signed with known key, skip re-following procedure
Because it means the remote actor did *not* lose their database
* Add CLI method for rotating keys
bin/tootctl accounts rotate [USERNAME]
Generates a new RSA key per account and sends out an Update activity
signed with the old key.
* Key rotation: Space out Update fan-outs every 5 minutes per 1000 accounts
* Skip suspended accounts in key rotation
* Allow accessing local private/DM messages by URL
(Provided the user pasting the URL is authorized to see the toot, obviously)
* Fix SearchServiceSpec tests
* Re-add follow recommendations API
GET /api/v1/suggestions
Removed in 30f9e9e624 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
Ref: 0c2a08adeb
This breaks compatibility with pre-2.3.0 Mastodon and older
software, but at the time of writing the network is >80% above
that version.
Compatibility broken only for toots with no text.
* 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
Old statuses and statuses from Pawoo, which runs a modified version of
Mastodon, may not have been marked sensitive even if spoiler text is
present.
Such statuses are still not marked sensitve if they are local or
arrived before version upgrade. Marking recently fetched remote status
sensitive contradicts the behavior.
Considering what people expected when they authored such statuses, this
change removes the sensitivity enforcement.
Do not touch statuses_count on accounts table when mass-destroying
statuses to reduce load when removing accounts, same for
reblogs_count and favourites_count
Do not count statuses with direct visibility in statuses_count
Fix#828
* 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
Updates account `uri` field on each call to `update_account` instead of
only once during `create_account` to mirror the same behavior in OStatus
`ResolveAccountService` class [0].
ActivityPub accounts are identified using `@username` and `@domain` pair
instead of URI since #6842.
This fixes#7479: a bug when the account identified by `@username` and
`@domain` changes its URI.
[0]:
060fa11ee2/app/services/resolve_account_service.rb (L121)
When an ActivityPub Announce is processed and the boosted toot is not known,
fetch it on behalf of one of the booster's followers. This is to allow
fetching self-boosts of previously-unknown private toots.
If fetching on behalf of a user fails, try fetching it anonymously: the
selected follower of a boosting user may be banned by the boosted toot's
author.
- POST /api/v1/push/subscription
- PUT /api/v1/push/subscription
- DELETE /api/v1/push/subscription
- New OAuth scope: "push" (required for the above methods)
Offload creation of local notifications to a worker. Remove two
redundant SQL queries from ProcessMentionsService, remove n+1
XML/JSON serialization via memoization
* 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
* Remove most behaviour disparities between blocks and mutes
The only differences between block and mute should be:
- Mutes can optionally NOT affect notifications
- Mutes should not be visible to the muted
Fix#7230Fix#5713
* Do not allow boosting someone you blocked
Fix#7248
* Do not allow favouriting someone you blocked
* Fix nil error in StatusPolicy
* Add equals_or_includes_any? helper in JsonLdHelper
* Support arrays in JSON-LD type fields for actors/tags/objects.
* Spec for resolving accounts with extension types
* Style tweaks for codeclimate
* 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
* 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
to_s method of HTTP::Response keeps blocking while it receives the whole
content, no matter how it is big. This means it may waste time to receive
unacceptably large files. It may also consume memory and disk in the
process. This solves the inefficency by checking response length while
receiving.
HTTP connections must be explicitly closed in many cases, and letting
perform method close connections makes its callers less redundant and
prevent them from forgetting to close connections.
Media attachments are part of the association cache of statuses,
since they are presumed to be immutable. Unless this cache is
cleared manually, the statuses will continue to look like they
have media embedded.
* 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 full-text search for authorized statuses
- Search API will return statuses that match the query
- Only for logged in users
- Only if you are author of the status,
- Or you were mentioned in it
- Or you favourited or reblogged it
- Configuration over `ES_ENABLED`, `ES_HOST`, `ES_PORT`, `ES_PREFIX`
- Run `rails chewy:deploy` to create & populate index
Fix#5880Fix#4293Fix#1152
* Add commented out docker-compose configuration for ES container
* Optimize index import, filter search results
* Add basic normalization to the index
* Add better stemming and normalization to the index
* Skip webfinger request if search query includes both @ and a space
* Fix code style
* Visually separate search result sections
* Fix code style issues
* When must_be_following_dm is on, only notify if recipient dm'ed user
Currently, when must_be_following_dm is on, if a user sends a direct
message replying to any status from the recipient, the recipient gets a
notification. This should not be the case, as if the recipient posted
something publicly this can be used to spam their notifications.
* Refactor replied_to_status_is_direct_message?
Following suggestion in PR
* 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
* Fix actors accepting invalid URI schemes or different host between URI and URL
* Fix statuses accepting invalid URI scheme or different host to actor
* Adjust tests to new requirements
* Improve readability of mismatching_origin?/invalid_origin? methods
without them, such as is the case with GNU social
Fixes the ability to find GNU social accounts via URL in search and
when using remote follow function
Avoid error when the service returns a mostly valid oembed, but has no
url in it, causing a MethodError: undefined method `url'
for #<OEmbed::Response::Photo:0x000056505def9620>
* Change conditional to avoid nil into string error in sidekiq
When obtaining information about users with mastodon in a different
subdomain, sidekiq was giving out a 'no implicit conversion of nil into String'
* Use presence instead of blank? with ternary.
Following suggestion on PR
* 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
* Add semi-support for Video/Image objects in ActivityPub
Video and Image objects will create corresponding status records
with manually crafted text contents (title + URL)
* Extract html-url-finding logic into JsonLdHelper
* Fallback to id when url missing, extract supported object types
* Avoid sending explicit Undo->Announce when original deleted
* Do not forward a reply back to the server that sent it
* Deduplicate inboxes of rebloggers' followers for delete forwarding
* Adjust test
* Fix wrong class, bad SQL, wrong variable, outdated comment
