fedibird-fe/app/services/remove_status_service.rb

230 lines
8.4 KiB
Ruby

# frozen_string_literal: true
class RemoveStatusService < BaseService
include Redisable
include Payloadable
# Delete a status
# @param [Status] status
# @param [Hash] options
# @option [Boolean] :redraft
# @option [Boolean] :immediate
# @option [Boolean] :original_removed
# @option [Boolean] :mark_expired
def call(status, **options)
@status = status
@account = status.account
@options = options
@status_expire = status.status_expire || mark_expired? && StatusExpire.new(status_id: status.id, expires_at: Time.now) || nil
@payload = Oj.dump(event: mark_expired? ? :expire : :delete, payload: status.id.to_s)
return if mark_expired? && already_expired?
@status.discard unless mark_expired?
RedisLock.acquire(lock_options) do |lock|
if lock.acquired?
remove_from_self if @account.local?
remove_from_followers
remove_from_lists
remove_from_subscribers
remove_from_subscribers_lists
# There is no reason to send out Undo activities when the
# cause is that the original object has been removed, since
# original object being removed implicitly removes reblogs
# of it. The Delete activity of the original is forwarded
# separately.
remove_from_remote_reach if @account.local? && !@options[:original_removed]
# Since reblogs don't mention anyone, don't get reblogged,
# favourited and don't contain their own media attachments
# or hashtags, this can be skipped
unless @status.reblog?
remove_from_mentions
remove_reblogs
remove_from_hashtags
remove_from_group if @status.account.group?
remove_from_public
remove_from_media
remove_media unless mark_expired?
end
if mark_expired?
UnpinService.new.call(@account, @status)
@status.update!(expired_at: @status_expire.expires_at)
@status_expire.destroy
else
@status_expire&.destroy
@status.destroy! if @options[:immediate] || !@status.reported?
end
else
raise Mastodon::RaceConditionError
end
end
end
private
def mark_expired?
@options[:mark_expired]
end
def already_expired?
@status.expired?
end
def remove_from_self
FeedManager.instance.unpush_from_home(@account, @status, @options)
end
def remove_from_followers
@account.followers_for_local_distribution.includes(:user).reorder(nil).find_each do |follower|
FeedManager.instance.unpush_from_home(follower, @status, @options)
end
end
def remove_from_lists
@account.lists_for_local_distribution.select(:id, :account_id).includes(account: :user).reorder(nil).find_each do |list|
FeedManager.instance.unpush_from_list(list, @status, @options)
end
end
def remove_from_subscribers
@account.subscribers_for_local_distribution.with_reblog(@status.reblog?).with_media(@status.proper).includes(account: :user).reorder(nil).find_each do |subscribing|
FeedManager.instance.unpush_from_home(subscribing.account, @status, @options)
end
end
def remove_from_subscribers_lists
@account.list_subscribers_for_local_distribution.with_reblog(@status.reblog?).with_media(@status.proper).includes(account: :user).reorder(nil).find_each do |subscribing|
FeedManager.instance.unpush_from_list(subscribing.list, @status, @options)
end
end
def remove_from_mentions
# For limited visibility statuses, the mentions that determine
# who receives them in their home feed are a subset of followers
# and therefore the delete is already handled by sending it to all
# followers. Here we send a delete to actively mentioned accounts
# that may not follow the account
@status.active_mentions.find_each do |mention|
redis.publish("timeline:#{mention.account_id}", @payload)
end
end
def remove_from_remote_reach
# Followers, relays, people who got mentioned in the status,
# or who reblogged it from someone else might not follow
# the author and wouldn't normally receive the delete
# notification - so here, we explicitly send it to them
status_reach_finder = StatusReachFinder.new(@status)
ActivityPub::DeliveryWorker.push_bulk(status_reach_finder.inboxes) do |inbox_url|
[signed_activity_json, @account.id, inbox_url]
end
end
def signed_activity_json
@signed_activity_json ||= Oj.dump(serialize_payload(@status, @status.reblog? ? ActivityPub::UndoAnnounceSerializer : ActivityPub::DeleteSerializer, signer: @account, expiry: mark_expired? ? @status.expiry : nil))
end
def remove_reblogs
# We delete reblogs of the status before the original status,
# because once original status is gone, reblogs will disappear
# without us being able to do all the fancy stuff
@status.reblogs.includes(:account).reorder(nil).find_each do |reblog|
RemoveStatusService.new.call(reblog, original_removed: true)
end
end
def remove_from_hashtags
@account.featured_tags.where(tag_id: @status.tags.map(&:id)).each do |featured_tag|
featured_tag.decrement(@status.id)
end
return unless @status.public_visibility?
@status.tags.map(&:name).each do |hashtag|
redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", @payload)
redis.publish("timeline:hashtag:nobot:#{hashtag.mb_chars.downcase}", @payload) unless @status.account.bot?
end
end
def remove_from_group
payload = @status.reblog? ? Oj.dump(event: :delete, payload: @status.reblog.id.to_s) : @payload
redis.publish("timeline:group:#{@status.account.id}", payload)
@status.tags.map(&:name).each do |hashtag|
redis.publish("timeline:group:#{@status.account.id}:#{hashtag.mb_chars.downcase}", payload)
end
if @status.media_attachments.any?
redis.publish("timeline:group:media:#{@status.account.id}", payload)
@status.tags.map(&:name).each do |hashtag|
redis.publish("timeline:group:media:#{@status.account.id}:#{hashtag.mb_chars.downcase}", payload)
end
else
redis.publish("timeline:group:nomedia:#{@status.account.id}", payload)
@status.tags.map(&:name).each do |hashtag|
redis.publish("timeline:group:nomedia:#{@status.account.id}:#{hashtag.mb_chars.downcase}", payload)
end
end
end
def remove_from_public
return unless @status.public_visibility?
redis.publish('timeline:public', @payload)
redis.publish('timeline:public:nobot', @payload) unless @status.account.bot?
if @status.local?
else
redis.publish('timeline:public:remote', @payload)
redis.publish('timeline:public:remote:nobot', @payload) unless @status.account.bot?
redis.publish("timeline:public:domain:#{@account.domain.mb_chars.downcase}", @payload)
redis.publish("timeline:public:domain:nobot:#{@account.domain.mb_chars.downcase}", @payload) unless @status.account.bot?
end
end
def remove_from_media
return unless @status.public_visibility?
if @status.media_attachments.any?
redis.publish('timeline:public:media', @payload)
redis.publish('timeline:public:nobot:media', @payload) unless @status.account.bot?
if @status.local?
else
redis.publish('timeline:public:remote:media', @payload)
redis.publish('timeline:public:remote:nobot:media', @payload) unless @status.account.bot?
redis.publish("timeline:public:domain:media:#{@account.domain.mb_chars.downcase}", @payload)
redis.publish("timeline:public:domain:nobot:media:#{@account.domain.mb_chars.downcase}", @payload) unless @status.account.bot?
end
else
redis.publish('timeline:public:nomedia', @payload)
redis.publish('timeline:public:nobot:nomedia', @payload) unless @status.account.bot?
if @status.local?
else
redis.publish('timeline:public:remote:nomedia', @payload)
redis.publish('timeline:public:remote:nobot:nomedia', @payload) unless @status.account.bot?
redis.publish("timeline:public:domain:nomedia:#{@account.domain.mb_chars.downcase}", @payload)
redis.publish("timeline:public:domain:nobot:nomedia:#{@account.domain.mb_chars.downcase}", @payload) unless @status.account.bot?
end
end
end
def remove_media
return if @options[:redraft] || (!@options[:immediate] && @status.reported?)
@status.media_attachments.destroy_all
end
def lock_options
{ redis: Redis.current, key: "distribute:#{@status.id}", autorelease: 5.minutes.seconds }
end
end