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|
# frozen_string_literal: true
class SuspendAccountService < BaseService
include Payloadable
# Carry out the suspension of a recently-suspended account
# @param [Account] account Account to suspend
def call(account)
return unless account.suspended?
@account = account
reject_remote_follows!
distribute_update_actor!
unmerge_from_home_timelines!
unmerge_from_list_timelines!
privatize_media_attachments!
end
private
def reject_remote_follows!
return if @account.local? || !@account.activitypub?
# When suspending a remote account, the account obviously doesn't
# actually become suspended on its origin server, i.e. unlike a
# locally suspended account it continues to have access to its home
# feed and other content. To prevent it from being able to continue
# to access toots it would receive because it follows local accounts,
# we have to force it to unfollow them. Unfortunately, there is no
# counterpart to this operation, i.e. you can't then force a remote
# account to re-follow you, so this part is not reversible.
follows = Follow.where(account: @account).to_a
ActivityPub::DeliveryWorker.push_bulk(follows) do |follow|
[Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer)), follow.target_account_id, @account.inbox_url]
end
follows.each(&:destroy)
end
def distribute_update_actor!
return unless @account.local?
account_reach_finder = AccountReachFinder.new(@account)
ActivityPub::DeliveryWorker.push_bulk(account_reach_finder.inboxes) do |inbox_url|
[signed_activity_json, @account.id, inbox_url]
end
end
def unmerge_from_home_timelines!
@account.followers_for_local_distribution.find_each do |follower|
FeedManager.instance.unmerge_from_home(@account, follower)
end
end
def unmerge_from_list_timelines!
@account.lists_for_local_distribution.find_each do |list|
FeedManager.instance.unmerge_from_list(@account, list)
end
end
def privatize_media_attachments!
attachment_names = MediaAttachment.attachment_definitions.keys
@account.media_attachments.find_each do |media_attachment|
attachment_names.each do |attachment_name|
attachment = media_attachment.public_send(attachment_name)
styles = [:original] | attachment.styles.keys
next if attachment.blank?
styles.each do |style|
case Paperclip::Attachment.default_options[:storage]
when :s3
# Prevent useless S3 calls if ACLs are disabled
next if ENV['S3_PERMISSION'] == ''
begin
attachment.s3_object(style).acl.put(acl: 'private')
rescue Aws::S3::Errors::NoSuchKey
Rails.logger.warn "Tried to change acl on non-existent key #{attachment.s3_object(style).key}"
rescue Aws::S3::Errors::NotImplemented => e
Rails.logger.error "Error trying to change ACL on #{attachment.s3_object(style).key}: #{e.message}"
end
when :fog
# Not supported
when :filesystem
begin
FileUtils.chmod(0o600 & ~File.umask, attachment.path(style)) unless attachment.path(style).nil?
rescue Errno::ENOENT
Rails.logger.warn "Tried to change permission on non-existent file #{attachment.path(style)}"
end
end
CacheBusterWorker.perform_async(attachment.path(style)) if Rails.configuration.x.cache_buster_enabled
end
end
end
end
def signed_activity_json
@signed_activity_json ||= Oj.dump(serialize_payload(@account, ActivityPub::UpdateSerializer, signer: @account))
end
end
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