# frozen_string_literal: true require 'singleton' class FeedManager include Singleton include Redisable # Maximum number of items stored in a single feed MAX_ITEMS = 1000 # Number of items in the feed since last reblog of status # before the new reblog will be inserted. Must be <= MAX_ITEMS # or the tracking sets will grow forever REBLOG_FALLOFF = 50 # Execute block for every active account # @yield [Account] # @return [void] def with_active_accounts(&block) Account.joins(:user).where('users.current_sign_in_at > ?', User::ACTIVE_DURATION.ago).find_each(&block) end # Redis key of a feed # @param [Symbol] type # @param [Integer] id # @param [Symbol] subtype # @return [String] def key(type, id, subtype = nil) return "feed:#{type}:#{id}" unless subtype "feed:#{type}:#{id}:#{subtype}" end # Check if the status should not be added to a feed # @param [Symbol] timeline_type # @param [Status] status # @param [Account|List] receiver # @return [Boolean] def filter?(timeline_type, status, receiver) case timeline_type when :home filter_from_home?(status, receiver.id, build_crutches(receiver.id, [status])) when :list filter_from_list?(status, receiver) || filter_from_home?(status, receiver.account_id, build_crutches(receiver.account_id, [status])) when :mentions filter_from_mentions?(status, receiver.id) when :direct filter_from_direct?(status, receiver.id) else false end end # Add a status to a home feed and send a streaming API update # @param [Account] account # @param [Status] status # @return [Boolean] def push_to_home(account, status) return false unless add_to_feed(:home, account.id, status, account.user&.aggregates_reblogs?, account.user&.disables_home_reblogs?) trim(:home, account.id) PushUpdateWorker.perform_async(account.id, status.id, "timeline:#{account.id}") if push_update_required?("timeline:#{account.id}") true end # Remove a status from a home feed and send a streaming API update # @param [Account] account # @param [Status] status # @return [Boolean] def unpush_from_home(account, status, include_reblogs_list = true) return false unless remove_from_feed(:home, account.id, status, account.user&.aggregates_reblogs?, include_reblogs_list) redis.publish("timeline:#{account.id}", Oj.dump(event: :delete, payload: status.id.to_s)) true end # Add a status to a list feed and send a streaming API update # @param [List] list # @param [Status] status # @return [Boolean] def push_to_list(list, status) return false if filter_from_list?(status, list) return false unless add_to_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?, !list.reblogs?) trim(:list, list.id) PushUpdateWorker.perform_async(list.account_id, status.id, "timeline:list:#{list.id}") if push_update_required?("timeline:list:#{list.id}") true end # Remove a status from a list feed and send a streaming API update # @param [List] list # @param [Status] status # @return [Boolean] def unpush_from_list(list, status) return false unless remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?) redis.publish("timeline:list:#{list.id}", Oj.dump(event: :delete, payload: status.id.to_s)) true end # Add a status to a linear direct message feed and send a streaming API update # @param [Account] account # @param [Status] status # @return [Boolean] def push_to_direct(account, status) return false unless add_to_feed(:direct, account.id, status) trim(:direct, account.id) PushUpdateWorker.perform_async(account.id, status.id, "timeline:direct:#{account.id}") true end # Remove a status from a linear direct message feed and send a streaming API update # @param [List] list # @param [Status] status # @return [Boolean] def unpush_from_direct(account, status) return false unless remove_from_feed(:direct, account.id, status) redis.publish("timeline:direct:#{account.id}", Oj.dump(event: :delete, payload: status.id.to_s)) true end def unpush_status(account, status) return if account.blank? || status.blank? unpush_from_home(account, status) unpush_from_direct(account, status) if status.direct_visibility? account.lists_for_local_distribution.select(:id, :account_id).each do |list| unpush_from_list(list, status, list.reblogs? && list.account.user&.aggregates_reblogs?) end end def unpush_conversation(account, conversation) return if account.blank? || conversation.blank? conversation.statuses.reorder(nil).find_each do |status| unpush_status(account, status) end end # Fill a home feed with an account's statuses # @param [Account] from_account # @param [Account] into_account # @return [void] def merge_into_home(from_account, into_account) timeline_key = key(:home, into_account.id) aggregate = into_account.user&.aggregates_reblogs? no_reblogs = into_account.user&.disables_home_reblogs? query = from_account.statuses.where(visibility: [:public, :unlisted, :private]).includes(:preloadable_poll, reblog: :account).limit(FeedManager::MAX_ITEMS / 4) if redis.zcard(timeline_key) >= FeedManager::MAX_ITEMS / 4 oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true).first.last.to_i query = query.where('id > ?', oldest_home_score) end statuses = query.to_a crutches = build_crutches(into_account.id, statuses) statuses.each do |status| next if filter_from_home?(status, into_account.id, crutches) add_to_feed(:home, into_account.id, status, aggregate, no_reblogs) end trim(:home, into_account.id) end # Fill a list feed with an account's statuses # @param [Account] from_account # @param [List] list # @return [void] def merge_into_list(from_account, list) timeline_key = key(:list, list.id) aggregate = list.account.user&.aggregates_reblogs? no_reblogs = list.account.user&.disables_home_reblogs? query = from_account.statuses.where(visibility: [:public, :unlisted, :private]).includes(:preloadable_poll, reblog: :account).limit(FeedManager::MAX_ITEMS / 4) if redis.zcard(timeline_key) >= FeedManager::MAX_ITEMS / 4 oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true).first.last.to_i query = query.where('id > ?', oldest_home_score) end statuses = query.to_a crutches = build_crutches(list.account_id, statuses) statuses.each do |status| next if filter_from_home?(status, list.account_id, crutches) || filter_from_list?(status, list) add_to_feed(:list, list.id, status, aggregate, no_reblogs) end trim(:list, list.id) end # Remove an account's statuses from a home feed # @param [Account] from_account # @param [Account] into_account # @return [void] def unmerge_from_home(from_account, into_account) timeline_key = key(:home, into_account.id) oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0 from_account.statuses.select('id, reblog_of_id').where('id > ?', oldest_home_score).reorder(nil).find_each do |status| remove_from_feed(:home, into_account.id, status, into_account.user&.aggregates_reblogs?) end end # Remove an account's statuses from a list feed # @param [Account] from_account # @param [List] list # @return [void] def unmerge_from_list(from_account, list) timeline_key = key(:list, list.id) oldest_list_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0 from_account.statuses.select('id, reblog_of_id').where('id > ?', oldest_list_score).reorder(nil).find_each do |status| remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?, !list.reblogs?) end end # Clear all statuses from or mentioning target_account from a home feed # @param [Account] account # @param [Account] target_account # @return [void] def clear_from_home(account, target_account) timeline_key = key(:home, account.id) timeline_status_ids = redis.zrange(timeline_key, 0, -1) statuses = Status.where(id: timeline_status_ids).select(:id, :reblog_of_id, :account_id).to_a reblogged_ids = Status.where(id: statuses.map(&:reblog_of_id).compact, account: target_account).pluck(:id) with_mentions_ids = Mention.active.where(status_id: statuses.flat_map { |s| [s.id, s.reblog_of_id] }.compact, account: target_account).pluck(:status_id) target_statuses = statuses.select do |status| status.account_id == target_account.id || reblogged_ids.include?(status.reblog_of_id) || with_mentions_ids.include?(status.id) || with_mentions_ids.include?(status.reblog_of_id) end target_statuses.each do |status| unpush_from_home(account, status) end end # Clear all reblogs from a home feed # @param [Account] account # @return [void] def clear_reblogs_from_home(account) timeline_key = key(:home, account.id) timeline_status_ids = redis.zrange(timeline_key, 0, -1) Status.reblogs.where(id: timeline_status_ids).find_each do |status| unpush_from_home(account, status, false) end end # Populate list feeds of account from scratch # @param [Account] account # @return [void] def populate_lists(account) limit = FeedManager::MAX_ITEMS / 2 account.owned_lists.includes(:accounts) do |list| timeline_key = key(:list, list.id) list.accounts.includes(:account_stat).find_each do |target_account| if redis.zcard(timeline_key) >= limit oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true).first.last.to_i last_status_score = Mastodon::Snowflake.id_at(account.last_status_at) # If the feed is full and this account has not posted more recently # than the last item on the feed, then we can skip the whole account # because none of its statuses would stay on the feed anyway next if last_status_score < oldest_home_score end statuses = target_account.statuses.published.without_reblogs.where(visibility: [:public, :unlisted, :private]).includes(:mentions, :preloadable_poll).limit(limit) crutches = build_crutches(account.id, statuses) statuses.each do |status| next if filter_from_list?(status, account.id) || filter_from_home?(status, account.id, crutches) add_to_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?, !list.reblogs?) end trim(:list, list.id) end end end # Populate home feed of account from scratch # @param [Account] account # @return [void] def populate_home(account) limit = FeedManager::MAX_ITEMS / 2 aggregate = account.user&.aggregates_reblogs? no_reblogs = account.user&.disables_home_reblogs? timeline_key = key(:home, account.id) account.statuses.limit(limit).each do |status| add_to_feed(:home, account.id, status, aggregate, no_reblogs) end account.following.includes(:account_stat).find_each do |target_account| if redis.zcard(timeline_key) >= limit oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true).first.last.to_i last_status_score = Mastodon::Snowflake.id_at(account.last_status_at) # If the feed is full and this account has not posted more recently # than the last item on the feed, then we can skip the whole account # because none of its statuses would stay on the feed anyway next if last_status_score < oldest_home_score end statuses = target_account.statuses.published.where(visibility: [:public, :unlisted, :private]).includes(:mentions, :preloadable_poll, reblog: [:account, :mentions]).limit(limit) crutches = build_crutches(account.id, statuses) statuses.each do |status| next if filter_from_home?(status, account.id, crutches) add_to_feed(:home, account.id, status, aggregate, no_reblogs, false) end trim(:home, account.id) end end # Populate direct feed of account from scratch # @param [Account] account # @return [void] def populate_direct_feed(account) added = 0 limit = FeedManager::MAX_ITEMS / 2 max_id = nil loop do statuses = Status.as_direct_timeline(account, limit, max_id) break if statuses.empty? statuses.each do |status| next if filter_from_direct?(status, account) added += 1 if add_to_feed(:direct, account.id, status) end break unless added.zero? max_id = statuses.last.id end end private # Trim a feed to maximum size by removing older items # @param [Symbol] type # @param [Integer] timeline_id # @return [void] def trim(type, timeline_id) timeline_key = key(type, timeline_id) reblog_key = key(type, timeline_id, 'reblogs') # Remove any items past the MAX_ITEMS'th entry in our feed redis.zremrangebyrank(timeline_key, 0, -(FeedManager::MAX_ITEMS + 1)) # Get the score of the REBLOG_FALLOFF'th item in our feed, and stop # tracking anything after it for deduplication purposes. falloff_rank = FeedManager::REBLOG_FALLOFF falloff_range = redis.zrevrange(timeline_key, falloff_rank, falloff_rank, with_scores: true) falloff_score = falloff_range&.first&.last&.to_i return if falloff_score.nil? # Get any reblogs we might have to clean up after. redis.zrangebyscore(reblog_key, 0, falloff_score).each do |reblogged_id| # Remove it from the set of reblogs we're tracking *first* to avoid races. redis.zrem(reblog_key, reblogged_id) # Just drop any set we might have created to track additional reblogs. # This means that if this reblog is deleted, we won't automatically insert # another reblog, but also that any new reblog can be inserted into the # feed. redis.del(key(type, timeline_id, "reblogs:#{reblogged_id}")) end end # Check if there is a streaming API client connected # for the given feed # @param [String] timeline_key # @return [Boolean] def push_update_required?(timeline_key) redis.exists?("subscribed:#{timeline_key}") end # Check if the account is blocking or muting any of the given accounts # @param [Integer] receiver_id # @param [Array] account_ids # @param [Symbol] context def blocks_or_mutes?(receiver_id, account_ids, context) Block.where(account_id: receiver_id, target_account_id: account_ids).any? || (context == :home ? Mute.where(account_id: receiver_id, target_account_id: account_ids).any? : Mute.where(account_id: receiver_id, target_account_id: account_ids, hide_notifications: true).any?) end # Check if status should not be added to the home feed # @param [Status] status # @param [Integer] receiver_id # @param [Hash] crutches # @return [Boolean] def filter_from_home?(status, receiver_id, crutches) return false if receiver_id == status.account_id return true if !status.published? || crutches[:hiding_thread][status.conversation_id] return true if status.reply? && (status.in_reply_to_id.nil? || status.in_reply_to_account_id.nil?) return true if phrase_filtered?(status, receiver_id, :home) check_for_blocks = crutches[:active_mentions][status.id] || [] check_for_blocks.concat([status.account_id]) check_for_blocks.concat([status.in_reply_to_account_id]) if status.reply? if status.reblog? check_for_blocks.concat([status.reblog.account_id]) check_for_blocks.concat(crutches[:active_mentions][status.reblog_of_id] || []) check_for_blocks.concat([status.reblog.in_reply_to_account_id]) if status.reblog.reply? end return true if check_for_blocks.any? { |target_account_id| crutches[:blocking][target_account_id] || crutches[:muting][target_account_id] } # Filter if... if status.reply? # ...it's a reply and... # ...you're not following the participants... should_filter = (status.mention_ids - crutches[:following].keys).present? # ...and the author isn't replying to you... should_filter &&= receiver_id != status.in_reply_to_account_id return !!should_filter elsif status.reblog? # ...it's a boost and... # ...you don't follow the OP and they're non-local or they're silenced... should_filter = !(crutches[:local][status.reblog.account_id] || crutches[:following][status.reblog.account_id]) # ..or you're hiding boosts from them... should_filter ||= crutches[:hiding_reblogs][status.account_id] # ...or they're blocking you... should_filter ||= crutches[:blocked_by][status.reblog.account_id] # ...or you're blocking their domain... should_filter ||= crutches[:domain_blocking][status.reblog.account.domain] # ...or it's a reply... if !(should_filter || status.reblog.in_reply_to_account_id.nil?) && status.reblog.reply? # ...and you don't follow the participants... should_filter ||= (status.reblog.mention_ids - crutches[:following].keys).present? # ...and the author isn't replying to you... should_filter &&= receiver_id != status.in_reply_to_account_id end return !!should_filter end !crutches[:following][status.account_id] end # Check if status should not be added to the mentions feed # @see NotifyService # @param [Status] status # @param [Integer] receiver_id # @return [Boolean] def filter_from_mentions?(status, receiver_id) return true if receiver_id == status.account_id return true if phrase_filtered?(status, receiver_id, :notifications) # This filter is called from NotifyService, but already after the sender of # the notification has been checked for mute/block. Therefore, it's not # necessary to check the author of the toot for mute/block again check_for_blocks = status.active_mentions.pluck(:account_id) check_for_blocks.concat([status.in_reply_to_account]) if status.reply? && !status.in_reply_to_account_id.nil? should_filter = blocks_or_mutes?(receiver_id, check_for_blocks, :mentions) should_filter ||= (status.account.silenced? && !relationship_exists?(receiver_id, status.account_id)) should_filter end def relationship_exists?(account_id, target_account_id) Follow.where(account_id: account_id, target_account_id: target_account_id) .or(Follow.where(account_id: target_account_id, target_account_id: account_id)) .exists? end # Check if status should not be added to the linear direct message feed # @param [Status] status # @param [Integer] receiver_id # @return [Boolean] def filter_from_direct?(status, receiver_id) return false if receiver_id == status.account_id filter_from_mentions?(status, receiver_id) end # Check if status should not be added to the list feed # @param [Status] status # @param [List] list # @return [Boolean] def filter_from_list?(status, list) return true if (list.reblogs? && !status.reblog?) || (!list.reblogs? && status.reblog?) return true if status.reblog? ? status.reblog.account_id == list.account_id : status.account_id == list.account_id if status.reply? && status.in_reply_to_account_id != status.account_id should_filter = status.in_reply_to_account_id != list.account_id should_filter &&= !list.show_all_replies? should_filter &&= !(list.show_list_replies? && ListAccount.where(list_id: list.id, account_id: status.in_reply_to_account_id).exists?) return !!should_filter end false end # Check if the status hits a phrase filter # @param [Status] status # @param [Integer] receiver_id # @param [Symbol] context # @return [Boolean] def phrase_filtered?(status, receiver_id, context) active_filters = Rails.cache.fetch("filters:#{receiver_id}") { CustomFilter.where(account_id: receiver_id).active_irreversible.to_a }.to_a active_filters.select! { |filter| filter.context.include?(context.to_s) && !filter.expired? } active_filters.map! do |filter| if filter.whole_word sb = filter.phrase =~ /\A[[:word:]]/ ? '\b' : '' eb = filter.phrase =~ /[[:word:]]\z/ ? '\b' : '' /(?mix:#{sb}#{Regexp.escape(filter.phrase)}#{eb})/ else /#{Regexp.escape(filter.phrase)}/i end end return false if active_filters.empty? combined_regex = active_filters.reduce { |memo, obj| Regexp.union(memo, obj) } status = status.reblog if status.reblog? combined_text = [ Formatter.instance.plaintext(status), status.spoiler_text, status.preloadable_poll ? status.preloadable_poll.options.join("\n\n") : nil, status.media_attachments.map(&:description).join("\n\n"), ].compact.join("\n\n") !combined_regex.match(combined_text).nil? end # Adds a status to an account's feed, returning true if a status was # added, and false if it was not added to the feed. Note that this is # an internal helper: callers must call trim or push updates if # either action is appropriate. # @param [Symbol] timeline_type # @param [Integer] account_id # @param [Status] status # @param [Boolean] aggregate_reblogs # @return [Boolean] def add_to_feed(timeline_type, account_id, status, aggregate_reblogs = true, skip_reblogs = false, stream = true) timeline_key = key(timeline_type, account_id) reblog_key = key(timeline_type, account_id, 'reblogs') if status.reblog? add_to_reblogs(account_id, status, aggregate_reblogs, stream) if timeline_type == :home return false if skip_reblogs end if status.reblog? && (aggregate_reblogs.nil? || aggregate_reblogs) # If the original status or a reblog of it is within # REBLOG_FALLOFF statuses from the top, do not re-insert it into # the feed rank = redis.zrevrank(timeline_key, status.reblog_of_id) return false if !rank.nil? && rank < FeedManager::REBLOG_FALLOFF # The ordered set at `reblog_key` holds statuses which have a reblog # in the top `REBLOG_FALLOFF` statuses of the timeline if redis.zadd(reblog_key, status.id, status.reblog_of_id, nx: true) # This is not something we've already seen reblogged, so we # can just add it to the feed (and note that we're reblogging it). redis.zadd(timeline_key, status.id, status.id) else # Another reblog of the same status was already in the # REBLOG_FALLOFF most recent statuses, so we note that this # is an "extra" reblog, by storing it in reblog_set_key. reblog_set_key = key(timeline_type, account_id, "reblogs:#{status.reblog_of_id}") redis.sadd(reblog_set_key, status.id) return false end else # A reblog may reach earlier than the original status because of the # delay of the worker deliverying the original status, the late addition # by merging timelines, and other reasons. # If such a reblog already exists, just do not re-insert it into the feed. return false unless redis.zscore(reblog_key, status.id).nil? redis.zadd(timeline_key, status.id, status.id) end add_to_reblogs(account_id, status, aggregate_reblogs, stream) if timeline_type == :home && status.reblog? true end # Removes an individual status from a feed, correctly handling cases # with reblogs, and returning true if a status was removed. As with # `add_to_feed`, this does not trigger push updates, so callers must # do so if appropriate. # @param [Symbol] timeline_type # @param [Integer] account_id # @param [Status] status # @param [Boolean] aggregate_reblogs # @return [Boolean] def remove_from_feed(timeline_type, account_id, status, aggregate_reblogs = true, include_reblogs_list = true) timeline_key = key(timeline_type, account_id) reblog_key = key(timeline_type, account_id, 'reblogs') remove_from_reblogs(account_id, status, aggregate_reblogs) if include_reblogs_list && timeline_type == :home && status.reblog? if status.reblog? && (aggregate_reblogs.nil? || aggregate_reblogs) # 1. If the reblogging status is not in the feed, stop. status_rank = redis.zrevrank(timeline_key, status.id) return false if status_rank.nil? # 2. Remove reblog from set of this status's reblogs. reblog_set_key = key(timeline_type, account_id, "reblogs:#{status.reblog_of_id}") redis.srem(reblog_set_key, status.id) redis.zrem(reblog_key, status.reblog_of_id) # 3. Re-insert another reblog or original into the feed if one # remains in the set. We could pick a random element, but this # set should generally be small, and it seems ideal to show the # oldest potential such reblog. other_reblog = redis.smembers(reblog_set_key).map(&:to_i).min redis.zadd(timeline_key, other_reblog, other_reblog) if other_reblog redis.zadd(reblog_key, other_reblog, status.reblog_of_id) if other_reblog # 4. Remove the reblogging status from the feed (as normal) # (outside conditional) else # If the original is getting deleted, no use for reblog references redis.del(key(timeline_type, account_id, "reblogs:#{status.id}")) redis.zrem(reblog_key, status.id) end redis.zrem(timeline_key, status.id) end # Pre-fetch various objects and relationships for given statuses that # are going to be checked by the filtering methods # @param [Integer] receiver_id # @param [Array] statuses # @return [Hash] def build_crutches(receiver_id, statuses) crutches = {} mentions = Mention.active.where(status_id: statuses.flat_map { |s| [s.id, s.reblog_of_id] }.compact).pluck(:status_id, :account_id) participants = statuses.flat_map { |s| [s.account_id, s.in_reply_to_account_id, s.reblog&.account_id, s.reblog&.in_reply_to_account_id].compact } | mentions.map { |m| m[1] } crutches[:active_mentions] = mentions.each_with_object({}) { |(id, account_id), mapping| (mapping[id] ||= []).push(account_id) } crutches[:following] = Follow.where(account_id: receiver_id, target_account_id: participants).pluck(:target_account_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:hiding_reblogs] = Follow.where(account_id: receiver_id, target_account_id: statuses.map { |s| s.account_id if s.reblog? }.compact, show_reblogs: false).pluck(:target_account_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:blocking] = Block.where(account_id: receiver_id, target_account_id: participants).pluck(:target_account_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:muting] = Mute.where(account_id: receiver_id, target_account_id: participants).pluck(:target_account_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:domain_blocking] = AccountDomainBlock.where(account_id: receiver_id, domain: statuses.map { |s| s.reblog&.account&.domain }.compact).pluck(:domain).each_with_object({}) { |domain, mapping| mapping[domain] = true } crutches[:blocked_by] = Block.where(target_account_id: receiver_id, account_id: statuses.map { |s| s.reblog&.account_id }.compact).pluck(:account_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:hiding_thread] = ConversationMute.where(account_id: receiver_id, conversation_id: statuses.map(&:conversation_id).compact).pluck(:conversation_id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches[:local] = Account.local.where(id: participants, silenced_at: nil, suspended_at: nil).pluck(:id).each_with_object({}) { |id, mapping| mapping[id] = true } crutches end def find_or_create_reblogs_list(account_id) List.find_or_create_by!(account_id: account_id, reblogs: true) do |list| list.title = I18n.t('accounts.reblogs') list.replies_policy = :no_replies end end def add_to_reblogs(account_id, status, aggregate_reblogs = true, stream = true) reblogs_list_id = find_or_create_reblogs_list(account_id).id return unless add_to_feed(:list, reblogs_list_id, status, aggregate_reblogs) trim(:list, reblogs_list_id) return unless stream && push_update_required?("timeline:list:#{reblogs_list_id}") PushUpdateWorker.perform_async(account_id, status.id, "timeline:list:#{reblogs_list_id}") end def remove_from_reblogs(account_id, status, aggregate_reblogs) reblogs_list_id = find_or_create_reblogs_list(account_id).id return unless remove_from_feed(:list, reblogs_list_id, status, aggregate_reblogs) redis.publish("timeline:list:#{reblogs_list_id}", Oj.dump(event: :delete, payload: status.id.to_s)) end end