132 lines
4.4 KiB
Ruby
132 lines
4.4 KiB
Ruby
# frozen_string_literal: true
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class BatchedRemoveStatusService < BaseService
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include StreamEntryRenderer
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# Delete given statuses and reblogs of them
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# Dispatch PuSH updates of the deleted statuses, but only local ones
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# Dispatch Salmon deletes, unique per domain, of the deleted statuses, but only local ones
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# Remove statuses from home feeds
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# Push delete events to streaming API for home feeds and public feeds
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# @param [Status] statuses A preferably batched array of statuses
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# @param [Hash] options
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# @option [Boolean] :skip_side_effects
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def call(statuses, **options)
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statuses = Status.where(id: statuses.map(&:id)).includes(:account, :stream_entry).flat_map { |status| [status] + status.reblogs.includes(:account, :stream_entry).to_a }
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@mentions = statuses.each_with_object({}) { |s, h| h[s.id] = s.active_mentions.includes(:account).to_a }
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@tags = statuses.each_with_object({}) { |s, h| h[s.id] = s.tags.pluck(:name) }
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@stream_entry_batches = []
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@salmon_batches = []
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@json_payloads = statuses.each_with_object({}) { |s, h| h[s.id] = Oj.dump(event: :delete, payload: s.id.to_s) }
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@activity_xml = {}
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# Ensure that rendered XML reflects destroyed state
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statuses.each do |status|
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status.mark_for_mass_destruction!
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status.destroy
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end
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return if options[:skip_side_effects]
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# Batch by source account
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statuses.group_by(&:account_id).each_value do |account_statuses|
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account = account_statuses.first.account
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unpush_from_home_timelines(account, account_statuses)
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unpush_from_list_timelines(account, account_statuses)
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batch_stream_entries(account, account_statuses) if account.local?
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end
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# Cannot be batched
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statuses.each do |status|
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unpush_from_public_timelines(status)
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unpush_from_direct_timelines(status) if status.direct_visibility?
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batch_salmon_slaps(status) if status.local?
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end
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Pubsubhubbub::RawDistributionWorker.push_bulk(@stream_entry_batches) { |batch| batch }
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NotificationWorker.push_bulk(@salmon_batches) { |batch| batch }
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end
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private
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def batch_stream_entries(account, statuses)
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statuses.each do |status|
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@stream_entry_batches << [build_xml(status.stream_entry), account.id]
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end
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end
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def unpush_from_home_timelines(account, statuses)
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recipients = account.followers_for_local_distribution.to_a
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recipients << account if account.local?
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recipients.each do |follower|
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statuses.each do |status|
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FeedManager.instance.unpush_from_home(follower, status)
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end
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end
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end
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def unpush_from_list_timelines(account, statuses)
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account.lists_for_local_distribution.select(:id, :account_id).each do |list|
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statuses.each do |status|
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FeedManager.instance.unpush_from_list(list, status)
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end
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end
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end
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def unpush_from_public_timelines(status)
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return unless status.public_visibility?
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payload = @json_payloads[status.id]
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redis.pipelined do
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redis.publish('timeline:public', payload)
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redis.publish('timeline:public:local', payload) if status.local?
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if status.media_attachments.any?
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redis.publish('timeline:public:media', payload)
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redis.publish('timeline:public:local:media', payload) if status.local?
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end
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@tags[status.id].each do |hashtag|
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redis.publish("timeline:hashtag:#{hashtag}", payload)
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redis.publish("timeline:hashtag:#{hashtag}:local", payload) if status.local?
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end
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end
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end
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def unpush_from_direct_timelines(status)
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payload = @json_payloads[status.id]
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redis.pipelined do
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@mentions[status.id].each do |mention|
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redis.publish("timeline:direct:#{mention.account.id}", payload) if mention.account.local?
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end
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redis.publish("timeline:direct:#{status.account.id}", payload) if status.account.local?
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end
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end
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def batch_salmon_slaps(status)
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return if @mentions[status.id].empty?
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recipients = @mentions[status.id].map(&:account).reject(&:local?).select(&:ostatus?).uniq(&:domain).map(&:id)
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recipients.each do |recipient_id|
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@salmon_batches << [build_xml(status.stream_entry), status.account_id, recipient_id]
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end
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end
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def redis
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Redis.current
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end
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def build_xml(stream_entry)
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return @activity_xml[stream_entry.id] if @activity_xml.key?(stream_entry.id)
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@activity_xml[stream_entry.id] = stream_entry_to_xml(stream_entry)
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end
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end
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