ActivityPub / Transmogrifier: Correctly store incoming Update id.

3 files changed, 7 insertions, 4 deletions

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 267819ede..319cd69df 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -17,6 +17,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.MRF
   alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.Streamer
   alias Pleroma.Web.WebFinger
 
@@ -270,8 +271,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   end
 
   def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
-    # only accept false as false value
     local = !(params[:local] == false)
+    activity_id = params[:activity_id]
 
     with data <- %{
            "to" => to,
@@ -280,6 +281,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
            "actor" => actor,
            "object" => object
          },
+         data <- Utils.maybe_put(data, "id", activity_id),
          {:ok, activity} <- insert(data, local),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index ce9ca95cf..c3d071393 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -621,7 +621,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
         to: data["to"] || [],
         cc: data["cc"] || [],
         object: object,
-        actor: actor_id
+        actor: actor_id,
+        activity_id: data["id"]
       })
     else
       e ->
diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index cdb0b2efa..39a532db3 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -728,6 +728,6 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     |> Repo.all()
   end
 
-  defp maybe_put(map, _key, nil), do: map
-  defp maybe_put(map, key, value), do: Map.put(map, key, value)
+  def maybe_put(map, _key, nil), do: map
+  def maybe_put(map, key, value), do: Map.put(map, key, value)
 end