ObjectValidator.stringify_keys: filter out nil values

lib/pleroma/web/activity_pub/object_validator.ex

@@ -213,6 +213,7 @@ def stringify_keys(%{__struct__: _} = object) do
 
   def stringify_keys(object) when is_map(object) do
     object
+    |> Enum.filter(fn {_, v} -> v != nil end)
     |> Map.new(fn {key, val} -> {to_string(key), stringify_keys(val)} end)
   end
 

lib/pleroma/web/push/impl.ex

@@ -124,8 +124,8 @@ def build_content(notification, actor, object, mastodon_type) do
 
   def format_body(activity, actor, object, mastodon_type \\ nil)
 
-  def format_body(_activity, actor, %{data: %{"type" => "ChatMessage", "content" => content}}, _) do
+  def format_body(_activity, actor, %{data: %{"type" => "ChatMessage"} = data}, _) do
-    case content do
+    case data["content"] do
       nil -> "@#{actor.nickname}: (Attachment)"
       content -> "@#{actor.nickname}: #{Utils.scrub_html_and_truncate(content, 80)}"
     end

test/pleroma/web/activity_pub/object_validators/chat_validation_test.exs

@@ -68,7 +68,7 @@ test "let's through some basic html", %{user: user, recipient: recipient} do
     test "validates for a basic object we build", %{valid_chat_message: valid_chat_message} do
       assert {:ok, object, _meta} = ObjectValidator.validate(valid_chat_message, [])
 
-      assert Map.put(valid_chat_message, "attachment", nil) == object
+      assert valid_chat_message == object
       assert match?(%{"firefox" => _}, object["emoji"])
     end
 

test/pleroma/web/activity_pub/transmogrifier/audio_handling_test.exs

@@ -73,16 +73,12 @@ test "Funkwhale Audio object" do
              %{
                "mediaType" => "audio/ogg",
                "type" => "Link",
-               "name" => nil,
-               "blurhash" => nil,
                "url" => [
                  %{
                    "href" =>
                      "https://channels.tests.funkwhale.audio/api/v1/listen/3901e5d8-0445-49d5-9711-e096cf32e515/?upload=42342395-0208-4fee-a38d-259a6dae0871&download=false",
                    "mediaType" => "audio/ogg",
-                   "type" => "Link",
+                   "type" => "Link"
-                   "width" => nil,
-                   "height" => nil
                  }
                ]
              }

test/pleroma/web/activity_pub/transmogrifier/video_handling_test.exs

@@ -53,16 +53,12 @@ test "it remaps video URLs as attachments if necessary" do
              %{
                "type" => "Link",
                "mediaType" => "video/mp4",
-               "name" => nil,
-               "blurhash" => nil,
                "url" => [
                  %{
                    "href" =>
                      "https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
                    "mediaType" => "video/mp4",
-                   "type" => "Link",
+                   "type" => "Link"
-                   "width" => nil,
-                   "height" => nil
                  }
                ]
              }
@@ -78,16 +74,12 @@ test "it remaps video URLs as attachments if necessary" do
              %{
                "type" => "Link",
                "mediaType" => "video/mp4",
-               "name" => nil,
-               "blurhash" => nil,
                "url" => [
                  %{
                    "href" =>
                      "https://framatube.org/static/webseed/6050732a-8a7a-43d4-a6cd-809525a1d206-1080.mp4",
                    "mediaType" => "video/mp4",
-                   "type" => "Link",
+                   "type" => "Link"
-                   "width" => nil,
-                   "height" => nil
                  }
                ]
              }
@@ -110,16 +102,12 @@ test "it works for peertube videos with only their mpegURL map" do
              %{
                "type" => "Link",
                "mediaType" => "video/mp4",
-               "name" => nil,
-               "blurhash" => nil,
                "url" => [
                  %{
                    "href" =>
                      "https://peertube.stream/static/streaming-playlists/hls/abece3c3-b9c6-47f4-8040-f3eed8c602e6/abece3c3-b9c6-47f4-8040-f3eed8c602e6-1080-fragmented.mp4",
                    "mediaType" => "video/mp4",
-                   "type" => "Link",
+                   "type" => "Link"
-                   "width" => nil,
-                   "height" => nil
                  }
                ]
              }