exclude replies on blocked domains

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -932,6 +932,33 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     query =
       if has_named_binding?(query, :object), do: query, else: Activity.with_joined_object(query)
 
+    # TODO: update after benchmarks
+    query =
+      case opts[:method] do
+        :fun ->
+          from(a in query,
+            where:
+              fragment(
+                "recipients_contain_blocked_domains(?, ?) = false",
+                a.recipients,
+                ^domain_blocks
+              )
+          )
+
+        :unnest ->
+          from(a in query,
+            where:
+              fragment(
+                "NOT ? && (SELECT ARRAY(SELECT split_part(UNNEST(?), '/', 3)))",
+                ^domain_blocks,
+                a.recipients
+              )
+          )
+
+        _ ->
+          query
+      end
+
     from(
       [activity, object: o] in query,
       where: fragment("not (? = ANY(?))", activity.actor, ^blocked_ap_ids),

lib/pleroma/web/api_spec/operations/timeline_operation.ex

@@ -62,6 +62,13 @@ defmodule Pleroma.Web.ApiSpec.TimelineOperation do
         only_media_param(),
         with_muted_param(),
         exclude_visibilities_param(),
+        # TODO: remove after benchmarks
+        Operation.parameter(
+          :method,
+          :query,
+          %Schema{type: :string},
+          "Temp parameter"
+        ),
         reply_visibility_param() | pagination_params()
       ],
       operationId: "TimelineController.public",

lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex

@@ -109,14 +109,23 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
     if restrict? and is_nil(user) do
       render_error(conn, :unauthorized, "authorization required for timeline view")
     else
-      activities =
+      # TODO: return back after benchmarks
+      params =
         params
         |> Map.put("type", ["Create", "Announce"])
         |> Map.put("local_only", local_only)
         |> Map.put("blocking_user", user)
         |> Map.put("muting_user", user)
         |> Map.put("reply_filtering_user", user)
-        |> ActivityPub.fetch_public_activities()
+
+      params =
+        if params["method"] do
+          Map.put(params, :method, String.to_existing_atom(params["method"]))
+        else
+          params
+        end
+
+      activities = ActivityPub.fetch_public_activities(params)
 
       conn
       |> add_link_headers(activities, %{"local" => local_only})