Fix report api

lib/pleroma/web/activity_pub/utils.ex

@@ -695,6 +695,11 @@ defp build_flag_object(%{statuses: statuses}) do
     Enum.map(statuses || [], &build_flag_object/1)
   end
 
+  defp build_flag_object(%Activity{} = activity) do
+    object = Object.normalize(activity, fetch: false)
+    build_flag_object(object)
+  end
+
   defp build_flag_object(%Object{data: data}) do
     actor = User.get_by_ap_id(data["actor"])
     id = data["id"]

lib/pleroma/web/admin_api/report.ex

@@ -18,10 +18,12 @@ def extract_report_info(
       |> Enum.reject(&is_nil(&1))
       |> Enum.map(fn
         act when is_map(act) ->
-          Activity.get_by_ap_id_with_object(act["id"]) || make_fake_activity(act, user)
+          Activity.get_create_by_object_ap_id_with_object(act["id"]) ||
+            Activity.get_by_ap_id_with_object(act["id"]) || make_fake_activity(act, user)
 
         act when is_binary(act) ->
-          Activity.get_by_ap_id_with_object(act)
+          Activity.get_create_by_object_ap_id_with_object(act) ||
+            Activity.get_by_ap_id_with_object(act)
       end)
 
     %{report: report, user: user, account: account, statuses: statuses}

test/pleroma/web/mastodon_api/controllers/report_controller_test.exs

@@ -5,6 +5,8 @@
 defmodule Pleroma.Web.MastodonAPI.ReportControllerTest do
   use Pleroma.Web.ConnCase, async: true
 
+  alias Pleroma.Activity
+  alias Pleroma.Repo
   alias Pleroma.Web.CommonAPI
 
   import Pleroma.Factory
@@ -27,6 +29,41 @@ test "submit a basic report", %{conn: conn, target_user: target_user} do
              |> json_response_and_validate_schema(200)
   end
 
+  test "submit a report with a fake Create", %{
+    conn: conn
+  } do
+    target_user = insert(:user)
+
+    note = insert(:note, user: target_user)
+
+    activity_params = %{
+      "object" => note.data["id"],
+      "actor" => note.data["actor"],
+      "to" => note.data["to"] || [],
+      "cc" => note.data["cc"] || [],
+      "type" => "Create"
+    }
+
+    {:ok, fake_activity} =
+      Repo.insert(%Activity{
+        data: activity_params,
+        recipients: activity_params["to"] ++ activity_params["cc"],
+        local: true,
+        actor: activity_params["actor"]
+      })
+
+    assert %{"action_taken" => false, "id" => _} =
+             conn
+             |> put_req_header("content-type", "application/json")
+             |> post("/api/v1/reports", %{
+               "account_id" => target_user.id,
+               "status_ids" => [fake_activity.id],
+               "comment" => "bad status!",
+               "forward" => "false"
+             })
+             |> json_response_and_validate_schema(200)
+  end
+
   test "submit a report with statuses and comment", %{
     conn: conn,
     target_user: target_user,