Gab Social. All are welcome.

app/lib/activitypub/activity/delete.rb

@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+class ActivityPub::Activity::Delete < ActivityPub::Activity
+  def perform
+    if @account.uri == object_uri
+      delete_person
+    else
+      delete_note
+    end
+  end
+
+  private
+
+  def delete_person
+    lock_or_return("delete_in_progress:#{@account.id}") do
+      SuspendAccountService.new.call(@account)
+      @account.destroy!
+    end
+  end
+
+  def delete_note
+    return if object_uri.nil?
+
+    unless invalid_origin?(object_uri)
+      RedisLock.acquire(lock_options) { |_lock| delete_later!(object_uri) }
+      Tombstone.find_or_create_by(uri: object_uri, account: @account)
+    end
+
+    @status   = Status.find_by(uri: object_uri, account: @account)
+    @status ||= Status.find_by(uri: @object['atomUri'], account: @account) if @object.is_a?(Hash) && @object['atomUri'].present?
+
+    return if @status.nil?
+
+    if @status.public_visibility? || @status.unlisted_visibility?
+      forward_for_reply
+      forward_for_reblogs
+    end
+
+    delete_now!
+  end
+
+  def forward_for_reblogs
+    return if @json['signature'].blank?
+
+    rebloggers_ids = @status.reblogs.includes(:account).references(:account).merge(Account.local).pluck(:account_id)
+    inboxes        = Account.where(id: ::Follow.where(target_account_id: rebloggers_ids).select(:account_id)).inboxes - [@account.preferred_inbox_url]
+
+    ActivityPub::DeliveryWorker.push_bulk(inboxes) do |inbox_url|
+      [payload, rebloggers_ids.first, inbox_url]
+    end
+  end
+
+  def replied_to_status
+    return @replied_to_status if defined?(@replied_to_status)
+    @replied_to_status = @status.thread
+  end
+
+  def reply_to_local?
+    !replied_to_status.nil? && replied_to_status.account.local?
+  end
+
+  def forward_for_reply
+    return unless @json['signature'].present? && reply_to_local?
+    ActivityPub::RawDistributionWorker.perform_async(Oj.dump(@json), replied_to_status.account_id, [@account.preferred_inbox_url])
+  end
+
+  def delete_now!
+    RemoveStatusService.new.call(@status)
+  end
+
+  def payload
+    @payload ||= Oj.dump(@json)
+  end
+
+  def lock_options
+    { redis: Redis.current, key: "create:#{object_uri}" }
+  end
+end