Admin API: list all statuses from a given instance

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -708,6 +708,17 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Enum.reverse()
   end
 
+  def fetch_instance_activities(params) do
+    params =
+      params
+      |> Map.put("type", ["Create", "Announce"])
+      |> Map.put("instance", params["instance"])
+      |> Map.put("whole_db", true)
+
+    fetch_activities([Pleroma.Constants.as_public()], params, :offset)
+    |> Enum.reverse()
+  end
+
   defp user_activities_recipients(%{"godmode" => true}) do
     []
   end
@@ -935,6 +946,20 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_muted_reblogs(query, _), do: query
 
+  defp restrict_instance(query, %{"instance" => instance}) do
+    users =
+      from(
+        u in User,
+        select: u.ap_id,
+        where: fragment("? LIKE ?", u.nickname, ^"%@#{instance}")
+      )
+      |> Repo.all()
+
+    from(activity in query, where: activity.actor in ^users)
+  end
+
+  defp restrict_instance(query, _), do: query
+
   defp exclude_poll_votes(query, %{"include_poll_votes" => true}), do: query
 
   defp exclude_poll_votes(query, _) do
@@ -1015,6 +1040,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_reblogs(opts)
     |> restrict_pinned(opts)
     |> restrict_muted_reblogs(opts)
+    |> restrict_instance(opts)
     |> Activity.restrict_deactivated_users()
     |> exclude_poll_votes(opts)
     |> exclude_visibility(opts)

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -226,6 +226,21 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     end
   end
 
+  def list_instance_statuses(conn, %{"instance" => instance} = params) do
+    {page, page_size} = page_params(params)
+
+    activities =
+      ActivityPub.fetch_instance_activities(%{
+        "instance" => instance,
+        "limit" => page_size,
+        "offset" => (page - 1) * page_size
+      })
+
+    conn
+    |> put_view(StatusView)
+    |> render("index.json", %{activities: activities, as: :activity})
+  end
+
   def list_user_statuses(conn, %{"nickname" => nickname} = params) do
     godmode = params["godmode"] == "true" || params["godmode"] == true
 

lib/pleroma/web/router.ex

@@ -177,6 +177,8 @@ defmodule Pleroma.Web.Router do
     get("/users/:nickname", AdminAPIController, :user_show)
     get("/users/:nickname/statuses", AdminAPIController, :list_user_statuses)
 
+    get("/instances/:instance/statuses", AdminAPIController, :list_instance_statuses)
+
     get("/reports", AdminAPIController, :list_reports)
     get("/reports/:id", AdminAPIController, :report_show)
     put("/reports/:id", AdminAPIController, :report_update_state)