From 81293e5aadd5f1dfe7f90f6a71f625ef86cf3359 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Tue, 17 Nov 2020 13:11:39 +0100
Subject: [PATCH] ActivityPubController: Don't return local only objects

---
 .../activity_pub/activity_pub_controller.ex   | 10 ++++--
 .../activity_pub_controller_test.exs          | 33 +++++++++++++++++++
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
index 31df80adb..7e5647f8f 100644
--- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
@@ -82,7 +82,8 @@ def user(conn, %{"nickname" => nickname}) do
   def object(conn, _) do
     with ap_id <- Endpoint.url() <> conn.request_path,
          %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
-         {_, true} <- {:public?, Visibility.is_public?(object)} do
+         {_, true} <- {:public?, Visibility.is_public?(object)},
+         {_, false} <- {:local?, Visibility.is_local_public?(object)} do
       conn
       |> assign(:tracking_fun_data, object.id)
       |> set_cache_ttl_for(object)
@@ -92,6 +93,9 @@ def object(conn, _) do
     else
       {:public?, false} ->
         {:error, :not_found}
+
+      {:local?, true} ->
+        {:error, :not_found}
     end
   end
 
@@ -108,7 +112,8 @@ def track_object_fetch(conn, object_id) do
   def activity(conn, _params) do
     with ap_id <- Endpoint.url() <> conn.request_path,
          %Activity{} = activity <- Activity.normalize(ap_id),
-         {_, true} <- {:public?, Visibility.is_public?(activity)} do
+         {_, true} <- {:public?, Visibility.is_public?(activity)},
+         {_, false} <- {:local?, Visibility.is_local_public?(activity)} do
       conn
       |> maybe_set_tracking_data(activity)
       |> set_cache_ttl_for(activity)
@@ -117,6 +122,7 @@ def activity(conn, _params) do
       |> render("object.json", object: activity)
     else
       {:public?, false} -> {:error, :not_found}
+      {:local?, true} -> {:error, :not_found}
       nil -> {:error, :not_found}
     end
   end
diff --git a/test/pleroma/web/activity_pub/activity_pub_controller_test.exs b/test/pleroma/web/activity_pub/activity_pub_controller_test.exs
index b696a24f4..31e48f87f 100644
--- a/test/pleroma/web/activity_pub/activity_pub_controller_test.exs
+++ b/test/pleroma/web/activity_pub/activity_pub_controller_test.exs
@@ -213,6 +213,23 @@ test "it returns a json representation of the activity with accept application/j
   end
 
   describe "/objects/:uuid" do
+    test "it doesn't return a local-only object", %{conn: conn} do
+      user = insert(:user)
+      {:ok, post} = CommonAPI.post(user, %{status: "test", visibility: "local"})
+
+      assert Pleroma.Web.ActivityPub.Visibility.is_local_public?(post)
+
+      object = Object.normalize(post, false)
+      uuid = String.split(object.data["id"], "/") |> List.last()
+
+      conn =
+        conn
+        |> put_req_header("accept", "application/json")
+        |> get("/objects/#{uuid}")
+
+      assert json_response(conn, 404)
+    end
+
     test "it returns a json representation of the object with accept application/json", %{
       conn: conn
     } do
@@ -326,6 +343,22 @@ test "cached purged after object deletion", %{conn: conn} do
   end
 
   describe "/activities/:uuid" do
+    test "it doesn't return a local-only activity", %{conn: conn} do
+      user = insert(:user)
+      {:ok, post} = CommonAPI.post(user, %{status: "test", visibility: "local"})
+
+      assert Pleroma.Web.ActivityPub.Visibility.is_local_public?(post)
+
+      uuid = String.split(post.data["id"], "/") |> List.last()
+
+      conn =
+        conn
+        |> put_req_header("accept", "application/json")
+        |> get("/activities/#{uuid}")
+
+      assert json_response(conn, 404)
+    end
+
     test "it returns a json representation of the activity", %{conn: conn} do
       activity = insert(:note_activity)
       uuid = String.split(activity.data["id"], "/") |> List.last()