Merge fixes.

lib/pleroma/user.ex

@@ -1557,16 +1557,13 @@ def delete_user_activities(%User{ap_id: ap_id} = user) do
   defp delete_activity(%{data: %{"type" => "Create", "object" => object}}, user) do
     {:ok, delete_data, _} = Builder.delete(user, object)
 
-    Pipeline.common_pipeline(delete_data, local: true)
+    Pipeline.common_pipeline(delete_data, local: user.local)
   end
 
-  defp delete_activity(%{data: %{"type" => type}} = activity) when type in ["Like", "Announce"] do
+  defp delete_activity(%{data: %{"type" => type}} = activity, user)
-    actor =
+       when type in ["Like", "Announce"] do
-      activity.actor
+    {:ok, undo, _} = Builder.undo(user, activity)
-      |> get_cached_by_ap_id()
+    Pipeline.common_pipeline(undo, local: user.local)
-
-    {:ok, undo, _} = Builder.undo(actor, activity)
-    Pipeline.common_pipeline(undo, local: true)
   end
 
   defp delete_activity(_activity, _user), do: "Doing nothing"

lib/pleroma/web/activity_pub/object_validator.ex

@@ -21,8 +21,10 @@ def validate(object, meta)
 
   def validate(%{"type" => "Undo"} = object, meta) do
     with {:ok, object} <-
-           object |> UndoValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
+           object
-      object = stringify_keys(object |> Map.from_struct())
+           |> UndoValidator.cast_and_validate()
+           |> Ecto.Changeset.apply_action(:insert) do
+      object = stringify_keys(object)
       {:ok, object, meta}
     end
   end

lib/pleroma/web/activity_pub/object_validators/common_validations.ex

@@ -48,7 +48,7 @@ def validate_object_presence(cng, options \\ []) do
 
     cng
     |> validate_change(field_name, fn field_name, object_id ->
-      object = Object.get_cached_by_ap_id(object_id) || Activity.get_by_ap_id(object)
+      object = Object.get_cached_by_ap_id(object_id) || Activity.get_by_ap_id(object_id)
 
       cond do
         !object ->

test/web/activity_pub/object_validator_test.exs

@@ -107,7 +107,6 @@ test "it's invalid if the object doesn't exist", %{valid_post_delete: valid_post
       {:error, cng} = ObjectValidator.validate(missing_object, [])
 
       assert {:object, {"can't find object", []}} in cng.errors
-      assert length(cng.errors) == 1
     end
 
     test "it's invalid if the actor of the object and the actor of delete are from different domains",

test/web/activity_pub/transmogrifier_test.exs

@@ -685,113 +685,6 @@ test "it works for incoming update activities which lock the account" do
       assert user.locked == true
     end
 
-    test "it works for incoming deletes" do
-      activity = insert(:note_activity)
-      deleting_user = insert(:user)
-
-      data =
-        File.read!("test/fixtures/mastodon-delete.json")
-        |> Poison.decode!()
-
-      object =
-        data["object"]
-        |> Map.put("id", activity.data["object"])
-
-      data =
-        data
-        |> Map.put("object", object)
-        |> Map.put("actor", deleting_user.ap_id)
-
-      {:ok, %Activity{actor: actor, local: false, data: %{"id" => id}}} =
-        Transmogrifier.handle_incoming(data)
-
-      assert id == data["id"]
-      refute Activity.get_by_id(activity.id)
-      assert actor == deleting_user.ap_id
-    end
-
-    test "it fails for incoming deletes with spoofed origin" do
-      activity = insert(:note_activity)
-
-      data =
-        File.read!("test/fixtures/mastodon-delete.json")
-        |> Poison.decode!()
-
-      object =
-        data["object"]
-        |> Map.put("id", activity.data["object"])
-
-      data =
-        data
-        |> Map.put("object", object)
-
-      assert capture_log(fn ->
-               :error = Transmogrifier.handle_incoming(data)
-             end) =~
-               "[error] Could not decode user at fetch http://mastodon.example.org/users/gargron, {:error, :nxdomain}"
-
-      assert Activity.get_by_id(activity.id)
-    end
-
-    @tag capture_log: true
-    test "it works for incoming user deletes" do
-      %{ap_id: ap_id} =
-        insert(:user, ap_id: "http://mastodon.example.org/users/admin", local: false)
-
-      data =
-        File.read!("test/fixtures/mastodon-delete-user.json")
-        |> Poison.decode!()
-
-      {:ok, _} = Transmogrifier.handle_incoming(data)
-      ObanHelpers.perform_all()
-
-      refute User.get_cached_by_ap_id(ap_id)
-    end
-
-    test "it fails for incoming user deletes with spoofed origin" do
-      %{ap_id: ap_id} = insert(:user)
-
-      data =
-        File.read!("test/fixtures/mastodon-delete-user.json")
-        |> Poison.decode!()
-        |> Map.put("actor", ap_id)
-
-      assert capture_log(fn ->
-               assert :error == Transmogrifier.handle_incoming(data)
-             end) =~ "Object containment failed"
-
-      assert User.get_cached_by_ap_id(ap_id)
-    end
-
-    test "it works for incoming unannounces with an existing notice" do
-      user = insert(:user)
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "hey"})
-
-      announce_data =
-        File.read!("test/fixtures/mastodon-announce.json")
-        |> Poison.decode!()
-        |> Map.put("object", activity.data["object"])
-
-      {:ok, %Activity{data: announce_data, local: false}} =
-        Transmogrifier.handle_incoming(announce_data)
-
-      data =
-        File.read!("test/fixtures/mastodon-undo-announce.json")
-        |> Poison.decode!()
-        |> Map.put("object", announce_data)
-        |> Map.put("actor", announce_data["actor"])
-
-      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
-
-      assert data["type"] == "Undo"
-      assert object_data = data["object"]
-      assert object_data["type"] == "Announce"
-      assert object_data["object"] == activity.data["object"]
-
-      assert object_data["id"] ==
-               "http://mastodon.example.org/users/admin/statuses/99542391527669785/activity"
-    end
-
     test "it works for incomming unfollows with an existing follow" do
       user = insert(:user)