Update Instance Actor when updating instance settings

Also fix an issue when publishing activities to followers/group members

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/federation/activity_pub/activity_pub.ex

@@ -720,7 +720,7 @@ defmodule Mobilizon.Federation.ActivityPub do
   """
   # credo:disable-for-lines:47
   @spec publish(Actor.t(), Activity.t()) :: :ok
-  def publish(actor, activity) do
+  def publish(actor, %Activity{recipients: recipients} = activity) do
     Logger.debug("Publishing an activity")
     Logger.debug(inspect(activity))
 
@@ -733,24 +733,26 @@ defmodule Mobilizon.Federation.ActivityPub do
       Relay.publish(activity)
     end
 
-    followers =
+    {recipients, followers} =
       if actor.followers_url in activity.recipients do
-        Actors.list_external_followers_for_actor(actor)
+        {Enum.filter(recipients, fn recipient -> recipient != actor.followers_url end),
+         Actors.list_external_followers_for_actor(actor)}
       else
-        []
+        {recipients, []}
       end
 
     # If we want to send to all members of the group, because this server is the one the group is on
-    members =
+    {recipients, members} =
       if is_announce_activity?(activity) and actor.type == :Group and
            actor.members_url in activity.recipients and is_nil(actor.domain) do
-        Actors.list_external_members_for_group(actor)
+        {Enum.filter(recipients, fn recipient -> recipient != actor.members_url end),
+         Actors.list_external_members_for_group(actor)}
       else
-        []
+        {recipients, []}
       end
 
     remote_inboxes =
-      (remote_actors(activity) ++ followers ++ members)
+      (remote_actors(recipients) ++ followers ++ members)
       |> Enum.map(fn follower -> follower.shared_inbox_url || follower.inbox_url end)
       |> Enum.uniq()
 
@@ -1045,7 +1047,7 @@ defmodule Mobilizon.Federation.ActivityPub do
     end
   end
 
-  @spec update_actor(Todo.t(), map, map) :: {:ok, Todo.t(), Activity.t()} | any
+  @spec update_todo(Todo.t(), map, map) :: {:ok, Todo.t(), Activity.t()} | any
   defp update_todo(%Todo{} = old_todo, args, additional) do
     with {:ok, %Todo{todo_list_id: todo_list_id} = todo} <- Todos.update_todo(old_todo, args),
          %TodoList{actor_id: group_id} = todo_list <- Todos.get_todo_list(todo_list_id),

lib/federation/activity_pub/utils.ex

@@ -114,10 +114,9 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
 
   def maybe_federate(_), do: :ok
 
-  def remote_actors(%{data: %{"to" => to} = data}) do
-    to = to ++ (data["cc"] || [])
-
-    to
+  @spec remote_actors(list(String.t())) :: list(Actor.t())
+  def remote_actors(recipients) do
+    recipients
     |> Enum.map(fn url -> ActivityPub.get_or_fetch_actor_by_url(url) end)
     |> Enum.map(fn {status, actor} ->
       case status do

lib/federation/activity_stream/converter/actor.ex

@@ -21,12 +21,14 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Actor do
     defdelegate model_to_as(actor), to: ActorConverter
   end
 
+  @allowed_types ["Application", "Group", "Organization", "Person", "Service"]
+
   @doc """
   Converts an AP object data to our internal data structure.
   """
   @impl Converter
   @spec as_to_model_data(map()) :: {:ok, map()}
-  def as_to_model_data(data) do
+  def as_to_model_data(%{"type" => type} = data) when type in @allowed_types do
     avatar =
       data["icon"]["url"] &&
         %{
@@ -62,6 +64,8 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Actor do
     }
   end
 
+  def as_to_model_data(_), do: :error
+
   @doc """
   Convert an actor struct to an ActivityStream representation.
   """