diff --git a/lib/pleroma/plugs/http_signature.ex b/lib/pleroma/plugs/http_signature.ex
index 2d0e10cad..38bcd3a78 100644
--- a/lib/pleroma/plugs/http_signature.ex
+++ b/lib/pleroma/plugs/http_signature.ex
@@ -13,7 +13,7 @@ defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
   end
 
   def call(conn, _opts) do
-    user = Utils.normalize_actor(conn.params["actor"])
+    user = Utils.get_ap_id(conn.params["actor"])
     Logger.debug("Checking sig for #{user}")
     [signature | _] = get_req_header(conn, "signature")
 
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index ff83dfd36..690ca62ec 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -263,11 +263,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def handle_incoming(
         %{"type" => "Delete", "object" => object_id, "actor" => actor, "id" => _id} = _data
       ) do
-    object_id =
-      case object_id do
-        %{"id" => id} -> id
-        id -> id
-      end
+    object_id = Utils.get_ap_id(object_id)
 
     with %User{} = _actor <- User.get_or_fetch_by_ap_id(actor),
          {:ok, object} <-
@@ -365,9 +361,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     end
   end
 
-  # TODO
-  # Accept
-
   def handle_incoming(_), do: :error
 
   def get_obj_helper(id) do
diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index 831e13b7e..7362a3ccf 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -7,18 +7,15 @@ defmodule Pleroma.Web.ActivityPub.Utils do
 
   # Some implementations send the actor URI as the actor field, others send the entire actor object,
   # so figure out what the actor's URI is based on what we have.
-  def normalize_actor(actor) do
-    cond do
-      is_binary(actor) ->
-        actor
-
-      is_map(actor) ->
-        actor["id"]
+  def get_ap_id(object) do
+    case object do
+      %{"id" => id} -> id
+      id -> id
     end
   end
 
   def normalize_params(params) do
-    Map.put(params, "actor", normalize_actor(params["actor"]))
+    Map.put(params, "actor", get_ap_id(params["actor"]))
   end
 
   def make_json_ld_header do
diff --git a/lib/pleroma/web/http_signatures/http_signatures.ex b/lib/pleroma/web/http_signatures/http_signatures.ex
index 4e0adbc1d..5e42a871b 100644
--- a/lib/pleroma/web/http_signatures/http_signatures.ex
+++ b/lib/pleroma/web/http_signatures/http_signatures.ex
@@ -32,14 +32,14 @@ defmodule Pleroma.Web.HTTPSignatures do
   def validate_conn(conn) do
     # TODO: How to get the right key and see if it is actually valid for that request.
     # For now, fetch the key for the actor.
-    with actor_id <- Utils.normalize_actor(conn.params["actor"]),
+    with actor_id <- Utils.get_ap_id(conn.params["actor"]),
          {:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
       if validate_conn(conn, public_key) do
         true
       else
         Logger.debug("Could not validate, re-fetching user and trying one more time")
         # Fetch user anew and try one more time
-        with actor_id <- Utils.normalize_actor(conn.params["actor"]),
+        with actor_id <- Utils.get_ap_id(conn.params["actor"]),
              {:ok, _user} <- ActivityPub.make_user_from_ap_id(actor_id),
              {:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
           validate_conn(conn, public_key)