1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Workers.AttachmentsCleanupWorker do
13 use Pleroma.Workers.WorkerHelper, queue: "attachments_cleanup"
18 "op" => "cleanup_attachments",
19 "object" => %{"data" => %{"attachment" => [_ | _] = attachments, "actor" => actor}}
24 Enum.flat_map(attachments, fn attachment ->
25 Enum.map(attachment["url"], & &1["href"])
28 names = Enum.map(attachments, & &1["name"])
30 uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
32 # find all objects for copies of the attachments, name and actor doesn't matter here
37 "to_jsonb(array(select jsonb_array_elements((?)#>'{url}') ->> 'href' where jsonb_typeof((?)#>'{url}') = 'array'))::jsonb \\?| (?)",
43 # The query above can be time consumptive on large instances until we
44 # refactor how uploads are stored
45 |> Repo.all(timeout: :infinity)
46 # we should delete 1 object for any given attachment, but don't delete
47 # files if there are more than 1 object for it
48 |> Enum.reduce(%{}, fn %{
51 "url" => [%{"href" => href}],
57 Map.update(acc, href, %{id: id, count: 1}, fn val ->
58 case obj_actor == actor and name in names do
60 # set id of the actor's object that will be deleted
61 %{val | id: id, count: val.count + 1}
64 # another actor's object, just increase count to not delete file
65 %{val | count: val.count + 1}
69 |> Enum.map(fn {href, %{id: id, count: count}} ->
70 # only delete files that have single instance
73 case Pleroma.Config.get([Pleroma.Upload, :base_url]) do
80 Pleroma.Config.get([Pleroma.Upload, :base_url], Pleroma.Web.base_url()),
84 file_path = String.trim_leading(href, "#{base_url}/#{prefix}")
86 Logger.warn("Deleting file #{file_path} (orig: #{href}, base_url: #{base_url})")
87 uploader.delete_file(file_path)
93 from(o in Object, where: o.id in ^delete_ids)
97 def perform(%{"op" => "cleanup_attachments", "object" => _object}, _job), do: :ok