+ defp fix_replies(data), do: Map.delete(data, "replies")
+
+ defp remote_mention_resolver(
+ %{"id" => ap_id, "tag" => tags},
+ "@" <> nickname = mention,
+ buffer,
+ opts,
+ acc
+ ) do
+ initial_host =
+ ap_id
+ |> URI.parse()
+ |> Map.get(:host)
+
+ with mention_tag <-
+ Enum.find(tags, fn t ->
+ t["type"] == "Mention" &&
+ (t["name"] == mention || mention == "#{t["name"]}@#{initial_host}")
+ end),
+ false <- is_nil(mention_tag),
+ {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(mention_tag["href"]) do
+ link = Pleroma.Formatter.mention_tag(user, nickname, opts)
+ {link, %{acc | mentions: MapSet.put(acc.mentions, {"@" <> nickname, user})}}
+ else
+ _ -> {buffer, acc}
+ end
+ end
+
+ # https://github.com/misskey-dev/misskey/pull/8787
+ # Misskey has an awful tendency to drop all custom formatting when it sends remotely
+ # So this basically reprocesses their MFM source
+ defp fix_misskey_content(
+ %{"source" => %{"mediaType" => "text/x.misskeymarkdown", "content" => content}} = object
+ )
+ when is_binary(content) do
+ mention_handler = fn nick, buffer, opts, acc ->
+ remote_mention_resolver(object, nick, buffer, opts, acc)
+ end
+
+ {linked, _, _} =
+ Utils.format_input(content, "text/x.misskeymarkdown", mention_handler: mention_handler)
+
+ Map.put(object, "content", linked)
+ end
+
+ defp fix_misskey_content(%{"_misskey_content" => content} = object) when is_binary(content) do
+ mention_handler = fn nick, buffer, opts, acc ->
+ remote_mention_resolver(object, nick, buffer, opts, acc)
+ end
+
+ {linked, _, _} =
+ Utils.format_input(content, "text/x.misskeymarkdown", mention_handler: mention_handler)
+
+ object
+ |> Map.put("source", %{
+ "content" => content,
+ "mediaType" => "text/x.misskeymarkdown"
+ })
+ |> Map.put("content", linked)
+ |> Map.delete("_misskey_content")
+ end
+
+ defp fix_misskey_content(data), do: data
+
+ defp fix_source(%{"source" => source} = object) when is_binary(source) do
+ object
+ |> Map.put("source", %{"content" => source})
+ end
+
+ defp fix_source(object), do: object
+
+ defp fix_content_map_languages(%{"contentMap" => content_map} = object)
+ when is_map(content_map) do
+ # Only allow valid languages
+ content_map =
+ content_map
+ |> Enum.reject(fn {lang, _content} ->
+ !Pleroma.ISO639.valid_alpha2?(lang)
+ end)
+ |> Enum.into(%{})
+
+ Map.put(object, "contentMap", content_map)
+ end