fix cache keys

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -92,14 +92,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   def maybe_remove_mediaproxy_invalidation(true, %{
         "object" => %{"attachment" => [_ | _] = attachments}
       }) do
-    Task.start(fn ->
-      attachments
-      |> Enum.flat_map(fn
-        %{"url" => urls} -> Enum.map(urls, &MediaProxy.url(&1["href"]))
-        _ -> []
-      end)
-      |> MediaProxy.remove_from_deleted_urls()
+    attachments
+    |> Enum.flat_map(fn
+      %{"url" => urls} -> Enum.map(urls, & &1["href"])
+      _ -> []
     end)
+    |> MediaProxy.remove_from_deleted_urls()
 
     :ok
   end

lib/pleroma/web/media_proxy/invalidation.ex

@@ -28,7 +28,7 @@ defmodule Pleroma.Web.MediaProxy.Invalidation do
     provider.purge(urls, Config.get(provider))
   end
 
-  defp prepare_urls(urls) do
+  def prepare_urls(urls) do
     urls
     |> List.wrap()
     |> Enum.map(&MediaProxy.url(&1))

lib/pleroma/web/media_proxy/media_proxy.ex

@@ -6,30 +6,31 @@ defmodule Pleroma.Web.MediaProxy do
   alias Pleroma.Config
   alias Pleroma.Upload
   alias Pleroma.Web
+  alias Pleroma.Web.MediaProxy.Invalidation
 
   @base64_opts [padding: false]
 
   @spec in_deleted_urls(String.t()) :: boolean()
-  def in_deleted_urls(url), do: elem(Cachex.exists?(:deleted_urls_cache, url), 1)
+  def in_deleted_urls(url), do: elem(Cachex.exists?(:deleted_urls_cache, url(url)), 1)
 
   def remove_from_deleted_urls(urls) when is_list(urls) do
     Cachex.execute!(:deleted_urls_cache, fn cache ->
-      Enum.each(urls, &Cachex.del(cache, &1))
+      Enum.each(Invalidation.prepare_urls(urls), &Cachex.del(cache, &1))
     end)
   end
 
   def remove_from_deleted_urls(url) when is_binary(url) do
-    Cachex.del(:deleted_urls_cache, url)
+    Cachex.del(:deleted_urls_cache, url(url))
   end
 
   def put_in_deleted_urls(urls) when is_list(urls) do
     Cachex.execute!(:deleted_urls_cache, fn cache ->
-      Enum.each(urls, &Cachex.put(cache, &1, true))
+      Enum.each(Invalidation.prepare_urls(urls), &Cachex.put(cache, &1, true))
     end)
   end
 
   def put_in_deleted_urls(url) when is_binary(url) do
-    Cachex.put(:deleted_urls_cache, url, true)
+    Cachex.put(:deleted_urls_cache, url(url), true)
   end
 
   def url(url) when is_nil(url) or url == "", do: nil