Fix the issue with HTML scrubber

lib/pleroma/html.ex

@@ -28,9 +28,13 @@ def filter_tags(html, scrubber), do: Scrubber.scrub(html, scrubber)
   def filter_tags(html), do: filter_tags(html, nil)
   def strip_tags(html), do: Scrubber.scrub(html, Scrubber.StripTags)
 
+  # TODO: rename object to activity because that's what it is really working with
   def get_cached_scrubbed_html_for_object(content, scrubbers, object, module) do
     key = "#{module}#{generate_scrubber_signature(scrubbers)}|#{object.id}"
-    Cachex.fetch!(:scrubber_cache, key, fn _key -> ensure_scrubbed_html(content, scrubbers) end)
+
+    Cachex.fetch!(:scrubber_cache, key, fn _key ->
+      ensure_scrubbed_html(content, scrubbers, object.data["object"]["fake"] || false)
+    end)
   end
 
   def get_cached_stripped_html_for_object(content, object, module) do
@@ -44,11 +48,20 @@ def get_cached_stripped_html_for_object(content, object, module) do
 
   def ensure_scrubbed_html(
         content,
-        scrubbers
+        scrubbers,
+        _fake = false
       ) do
     {:commit, filter_tags(content, scrubbers)}
   end
 
+  def ensure_scrubbed_html(
+        content,
+        scrubbers,
+        _fake = true
+      ) do
+    {:ignore, filter_tags(content, scrubbers)}
+  end
+
   defp generate_scrubber_signature(scrubber) when is_atom(scrubber) do
     generate_scrubber_signature([scrubber])
   end

lib/pleroma/object.ex

@@ -44,6 +44,11 @@ def get_by_ap_id(ap_id) do
   # Use this whenever possible, especially when walking graphs in an O(N) loop!
   def normalize(%Activity{object: %Object{} = object}), do: object
 
+  # A hack for fake activities
+  def normalize(%Activity{data: %{"object" => %{"fake" => true} = data}}) do
+    %Object{id: "pleroma:fake_object_id", data: data}
+  end
+
   # Catch and log Object.normalize() calls where the Activity's child object is not
   # preloaded.
   def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}) do

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -150,14 +150,20 @@ def insert(map, local \\ true, fake \\ false) when is_map(map) do
         {:ok, activity}
 
       {:fake, true, map, recipients} ->
-        {:ok,
-         %Activity{
+        map =
+          map
+          |> put_in(["object", "fake"], true)
+
+        activity = %Activity{
           data: map,
           local: local,
           actor: map["actor"],
           recipients: recipients,
           id: "pleroma:fakeid"
-         }}
+        }
+
+        # Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
+        {:ok, activity}
 
       error ->
         {:error, error}