mapped signature plug: use `user` assign like authentication plug

lib/pleroma/plugs/mapped_signature_to_identity_plug.ex

@@ -31,14 +31,14 @@ defp user_from_key_id(conn) do
     end
   end
 
-  def call(%{assigns: %{mapped_identity: _}} = conn, _opts), do: conn
+  def call(%{assigns: %{user: _}} = conn, _opts), do: conn
 
   # if this has payload make sure it is signed by the same actor that made it
   def call(%{assigns: %{valid_signature: true}, params: %{"actor" => actor}} = conn, _opts) do
     with actor_id <- Utils.get_ap_id(actor),
          {:user, %User{} = user} <- {:user, user_from_key_id(conn)},
          {:user_match, true} <- {:user_match, user.ap_id == actor_id} do
-      assign(conn, :mapped_identity, user)
+      assign(conn, :user, user)
     else
       {:user_match, false} ->
         Logger.debug("Failed to map identity from signature (payload actor mismatch)")
@@ -56,7 +56,7 @@ def call(%{assigns: %{valid_signature: true}, params: %{"actor" => actor}} = con
   # no payload, probably a signed fetch
   def call(%{assigns: %{valid_signature: true}} = conn, _opts) do
     with %User{} = user <- user_from_key_id(conn) do
-      assign(conn, :mapped_identity, user)
+      assign(conn, :user, user)
     else
       _ ->
         Logger.debug("Failed to map identity from signature (no payload actor mismatch)")

test/plugs/mapped_identity_to_signature_plug_test.exs

@@ -26,7 +26,7 @@ test "it successfully maps a valid identity with a valid signature" do
       |> set_signature("http://mastodon.example.org/users/admin")
       |> MappedSignatureToIdentityPlug.call(%{})
 
-    refute is_nil(conn.assigns.mapped_identity)
+    refute is_nil(conn.assigns.user)
   end
 
   test "it successfully maps a valid identity with a valid signature with payload" do
@@ -35,7 +35,7 @@ test "it successfully maps a valid identity with a valid signature with payload"
       |> set_signature("http://mastodon.example.org/users/admin")
       |> MappedSignatureToIdentityPlug.call(%{})
 
-    refute is_nil(conn.assigns.mapped_identity)
+    refute is_nil(conn.assigns.user)
   end
 
   test "it considers a mapped identity to be invalid when it mismatches a payload" do