Include contentMap in outgoing posts

Signed-off-by: mkljczk <git@mkljczk.pl>

lib/pleroma/constants.ex

@@ -37,6 +37,7 @@ defmodule Pleroma.Constants do
       "updated",
       "emoji",
       "content",
+      "contentMap",
       "summary",
       "sensitive",
       "attachment",

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -6,6 +6,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   @moduledoc """
   A module to handle coding from internal to wire ActivityPub and back.
   """
+  alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
   alias Pleroma.Activity
   alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Maps
@@ -167,7 +168,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
   def fix_quote_url_and_maybe_fetch(object, options \\ []) do
     quote_url =
-      case Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes.fix_quote_url(object) do
+      case CommonFixes.fix_quote_url(object) do
         %{"quoteUrl" => quote_url} -> quote_url
         _ -> nil
       end
@@ -720,6 +721,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     |> set_reply_to_uri
     |> set_quote_url
     |> set_replies
+    |> CommonFixes.maybe_add_content_map()
     |> strip_internal_fields
     |> strip_internal_tags
     |> set_type

test/pleroma/web/activity_pub/transmogrifier_test.exs

@@ -639,5 +639,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       processed = Transmogrifier.prepare_object(original)
       assert processed["formerRepresentations"] == original["formerRepresentations"]
     end
+
+    test "it uses contentMap to specify post language" do
+      user = insert(:user)
+
+      {:ok, activity} = CommonAPI.post(user, %{status: "Cześć", language: "pl"})
+      {:ok, modified} = Transmogrifier.prepare_object(activity.object.data)
+
+      assert %{"contentMap" => %{"pl" => "Cześć"}} = modified["object"]
+    end
   end
 end