Expose restricted names in nodeinfo.

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

@@ -138,7 +138,8 @@ def nodeinfo(conn, %{"version" => "2.0"}) do
         },
         accountActivationRequired: Keyword.get(instance, :account_activation_required, false),
         invitesEnabled: Keyword.get(instance, :invites_enabled, false),
-        features: features
+        features: features,
+        restrictedNicknames: Pleroma.Config.get([Pleroma.User, :restricted_nicknames])
       }
     }
 

test/web/node_info_test.exs

@@ -19,6 +19,17 @@ test "nodeinfo shows staff accounts", %{conn: conn} do
     assert user.ap_id in result["metadata"]["staffAccounts"]
   end
 
+  test "nodeinfo shows restricted nicknames", %{conn: conn} do
+    conn =
+      conn
+      |> get("/nodeinfo/2.0.json")
+
+    assert result = json_response(conn, 200)
+
+    assert Pleroma.Config.get([Pleroma.User, :restricted_nicknames]) ==
+             result["metadata"]["restrictedNicknames"]
+  end
+
   test "returns 404 when federation is disabled", %{conn: conn} do
     instance =
       Application.get_env(:pleroma, :instance)