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180 lines
5.2 KiB
180 lines
5.2 KiB
# frozen_string_literal: true
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class DeleteAccountService < BaseService
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include Payloadable
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ASSOCIATIONS_ON_SUSPEND = %w(
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account_pins
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active_relationships
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block_relationships
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blocked_by_relationships
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conversation_mutes
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conversations
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custom_filters
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domain_blocks
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favourites
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follow_requests
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list_accounts
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mute_relationships
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muted_by_relationships
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notifications
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owned_lists
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passive_relationships
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report_notes
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scheduled_statuses
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status_pins
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).freeze
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ASSOCIATIONS_ON_DESTROY = %w(
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reports
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targeted_moderation_notes
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targeted_reports
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).freeze
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# Suspend or remove an account and remove as much of its data
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# as possible. If it's a local account and it has not been confirmed
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# or never been approved, then side effects are skipped and both
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# the user and account records are removed fully. Otherwise,
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# it is controlled by options.
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# @param [Account]
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# @param [Hash] options
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# @option [Boolean] :reserve_email Keep user record. Only applicable for local accounts
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# @option [Boolean] :reserve_username Keep account record
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# @option [Boolean] :skip_side_effects Side effects are ActivityPub and streaming API payloads
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# @option [Time] :suspended_at Only applicable when :reserve_username is true
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def call(account, **options)
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@account = account
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@options = { reserve_username: true, reserve_email: true }.merge(options)
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if @account.local? && @account.user_unconfirmed_or_pending?
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@options[:reserve_email] = false
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@options[:reserve_username] = false
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@options[:skip_side_effects] = true
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end
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reject_follows!
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purge_user!
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purge_profile!
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purge_content!
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fulfill_deletion_request!
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end
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private
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def reject_follows!
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return if @account.local? || !@account.activitypub?
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ActivityPub::DeliveryWorker.push_bulk(Follow.where(account: @account)) do |follow|
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[build_reject_json(follow), follow.target_account_id, follow.account.inbox_url]
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end
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end
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def purge_user!
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return if !@account.local? || @account.user.nil?
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if @options[:reserve_email]
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@account.user.disable!
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@account.user.invites.where(uses: 0).destroy_all
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else
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@account.user.destroy
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end
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end
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def purge_content!
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distribute_delete_actor! if @account.local? && !@options[:skip_side_effects]
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@account.statuses.reorder(nil).find_in_batches do |statuses|
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statuses.reject! { |status| reported_status_ids.include?(status.id) } if @options[:reserve_username]
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BatchedRemoveStatusService.new.call(statuses, skip_side_effects: @options[:skip_side_effects])
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end
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@account.media_attachments.reorder(nil).find_each do |media_attachment|
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next if @options[:reserve_username] && reported_status_ids.include?(media_attachment.status_id)
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media_attachment.destroy
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end
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@account.polls.reorder(nil).find_each do |poll|
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next if @options[:reserve_username] && reported_status_ids.include?(poll.status_id)
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poll.destroy
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end
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associations_for_destruction.each do |association_name|
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destroy_all(@account.public_send(association_name))
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end
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@account.destroy unless @options[:reserve_username]
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end
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def purge_profile!
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# If the account is going to be destroyed
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# there is no point wasting time updating
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# its values first
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return unless @options[:reserve_username]
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@account.silenced_at = nil
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@account.suspended_at = @options[:suspended_at] || Time.now.utc
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@account.locked = false
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@account.memorial = false
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@account.discoverable = false
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@account.display_name = ''
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@account.note = ''
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@account.fields = []
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@account.statuses_count = 0
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@account.followers_count = 0
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@account.following_count = 0
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@account.moved_to_account = nil
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@account.trust_level = :untrusted
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@account.avatar.destroy
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@account.header.destroy
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@account.save!
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end
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def fulfill_deletion_request!
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@account.deletion_request&.destroy
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end
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def destroy_all(association)
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association.in_batches.destroy_all
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end
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def distribute_delete_actor!
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ActivityPub::DeliveryWorker.push_bulk(delivery_inboxes) do |inbox_url|
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[delete_actor_json, @account.id, inbox_url]
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end
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ActivityPub::LowPriorityDeliveryWorker.push_bulk(low_priority_delivery_inboxes) do |inbox_url|
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[delete_actor_json, @account.id, inbox_url]
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end
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end
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def delete_actor_json
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@delete_actor_json ||= Oj.dump(serialize_payload(@account, ActivityPub::DeleteActorSerializer, signer: @account))
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end
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def build_reject_json(follow)
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Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer))
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end
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def delivery_inboxes
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@delivery_inboxes ||= @account.followers.inboxes + Relay.enabled.pluck(:inbox_url)
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end
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def low_priority_delivery_inboxes
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Account.inboxes - delivery_inboxes
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end
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def reported_status_ids
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@reported_status_ids ||= Report.where(target_account: @account).unresolved.pluck(:status_ids).flatten.uniq
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end
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def associations_for_destruction
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if @options[:reserve_username]
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ASSOCIATIONS_ON_SUSPEND
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else
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ASSOCIATIONS_ON_SUSPEND + ASSOCIATIONS_ON_DESTROY
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end
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end
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end
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