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Purge unused media description update on post
In MastoAPI media descriptions are updated via the media update API not upon post creation or post update. This functionality was originally added about 6 years ago inba93396649
which was part of https://git.pleroma.social/pleroma/pleroma/-/merge_requests/626 and https://git.pleroma.social/pleroma/pleroma-fe/-/merge_requests/450. They introduced image descriptions to the front- and backend, but predate adoption of Mastodon API. For a while adding an `descriptions` array on post creation might have continued to work as an undocumented Pleroma extension to Masto API, but at latest when OpenAPI specs were added for those endpoints four years ago in7803a85d2c
, these codepaths ceased to be used. The API specs don’t list a `descriptions` parameter and any unknown parameters are stripped out. The attachments_from_ids function is only called from ScheduledActivity and ActivityDraft.create with the latter only being called by CommonAPI.{post,update} whihc in turn are only called from ScheduledActivity again, MastoAPI controller and without any attachment or description parameter WelcomeMessage. Therefore no codepath can contain a descriptions parameter.
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@ -22,19 +22,13 @@ defmodule Pleroma.Web.CommonAPI.Utils do
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require Logger
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require Pleroma.Constants
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def attachments_from_ids(%{media_ids: ids, descriptions: desc}) do
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attachments_from_ids_descs(ids, desc)
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end
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def attachments_from_ids(%{media_ids: ids}) do
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attachments_from_ids_no_descs(ids)
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attachments_from_ids(ids)
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end
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def attachments_from_ids(_), do: []
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def attachments_from_ids([]), do: []
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def attachments_from_ids_no_descs([]), do: []
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def attachments_from_ids_no_descs(ids) do
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def attachments_from_ids(ids) when is_list(ids) do
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Enum.map(ids, fn media_id ->
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case get_attachment(media_id) do
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%Object{data: data} -> data
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@ -44,18 +38,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
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|> Enum.reject(&is_nil/1)
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end
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def attachments_from_ids_descs([], _), do: []
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def attachments_from_ids_descs(ids, descs_str) do
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{_, descs} = Jason.decode(descs_str)
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Enum.map(ids, fn media_id ->
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with %Object{data: data} <- get_attachment(media_id) do
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Map.put(data, "name", descs[media_id])
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end
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end)
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|> Enum.reject(&is_nil/1)
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end
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def attachments_from_ids(_), do: []
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defp get_attachment(media_id) do
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Repo.get(Object, media_id)
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@ -590,34 +590,7 @@ defmodule Pleroma.Web.CommonAPI.UtilsTest do
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end
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end
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describe "attachments_from_ids_descs/2" do
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test "returns [] when attachment ids is empty" do
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assert Utils.attachments_from_ids_descs([], "{}") == []
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end
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test "returns list attachments with desc" do
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object = insert(:note)
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desc = Jason.encode!(%{object.id => "test-desc"})
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assert Utils.attachments_from_ids_descs(["#{object.id}", "34"], desc) == [
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Map.merge(object.data, %{"name" => "test-desc"})
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]
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end
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end
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describe "attachments_from_ids/1" do
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test "returns attachments with descs" do
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object = insert(:note)
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desc = Jason.encode!(%{object.id => "test-desc"})
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assert Utils.attachments_from_ids(%{
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media_ids: ["#{object.id}"],
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descriptions: desc
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}) == [
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Map.merge(object.data, %{"name" => "test-desc"})
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]
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end
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test "returns attachments without descs" do
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object = insert(:note)
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assert Utils.attachments_from_ids(%{media_ids: ["#{object.id}"]}) == [object.data]
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