Add last priviliges

I still had three endpoints I didn't really know what to do with them. I added them under separate tags
* :instance_delete
* :moderation_log_read
* :stats_read

I also checked and these are the last changes done by MR https://git.pleroma.social/pleroma/pleroma/-/merge_requests/3480/diffs this is trying to fix

lib/pleroma/web/router.ex

@@ -155,6 +155,21 @@ defmodule Pleroma.Web.Router do
     plug(Pleroma.Web.Plugs.EnsurePrivilegedPlug, :emoji_management)
   end
 
+  pipeline :require_privileged_role_instance_delete do
+    plug(:admin_api)
+    plug(Pleroma.Web.Plugs.EnsurePrivilegedPlug, :instance_delete)
+  end
+
+  pipeline :require_privileged_role_moderation_log_read do
+    plug(:admin_api)
+    plug(Pleroma.Web.Plugs.EnsurePrivilegedPlug, :moderation_log_read)
+  end
+
+  pipeline :require_privileged_role_stats_read do
+    plug(:admin_api)
+    plug(Pleroma.Web.Plugs.EnsurePrivilegedPlug, :stats_read)
+  end
+
   pipeline :pleroma_html do
     plug(:browser)
     plug(:authenticate)
@@ -372,13 +387,23 @@ defmodule Pleroma.Web.Router do
     post("/reload_emoji", AdminAPIController, :reload_emoji)
   end
 
-  # AdminAPI: admins and mods (staff) can perform these actions
+  # AdminAPI: admins and mods (staff) can perform these actions (if privileged by role)
   scope "/api/v1/pleroma/admin", Pleroma.Web.AdminAPI do
-    pipe_through(:admin_api)
+    pipe_through(:require_privileged_role_instance_delete)
 
     delete("/instances/:instance", InstanceController, :delete)
+  end
+
+  # AdminAPI: admins and mods (staff) can perform these actions (if privileged by role)
+  scope "/api/v1/pleroma/admin", Pleroma.Web.AdminAPI do
+    pipe_through(:require_privileged_role_moderation_log_read)
 
     get("/moderation_log", AdminAPIController, :list_log)
+  end
+
+  # AdminAPI: admins and mods (staff) can perform these actions (if privileged by role)
+  scope "/api/v1/pleroma/admin", Pleroma.Web.AdminAPI do
+    pipe_through(:require_privileged_role_stats_read)
 
     get("/stats", AdminAPIController, :stats)
   end

test/pleroma/web/admin_api/controllers/admin_api_controller_test.exs

@@ -558,6 +558,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
 
   describe "GET /api/pleroma/admin/moderation_log" do
     setup do
+      clear_config([:instance, :admin_privileges], [:moderation_log_read])
       moderator = insert(:user, is_moderator: true)
 
       %{moderator: moderator}
@@ -762,6 +763,15 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
       assert get_in(first_entry, ["data", "message"]) ==
                "@#{moderator.nickname} unfollowed relay: https://example.org/relay"
     end
+
+    test "it requires privileged role :moderation_log_read", %{conn: conn} do
+      clear_config([:instance, :admin_privileges], [])
+
+      assert conn
+             |> put_req_header("content-type", "multipart/form-data")
+             |> get("/api/pleroma/admin/moderation_log")
+             |> json_response(:forbidden)
+    end
   end
 
   test "gets a remote users when [:instance, :limit_to_local_content] is set to :unauthenticated",
@@ -960,6 +970,10 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
   end
 
   describe "/api/pleroma/admin/stats" do
+    setup do
+      clear_config([:instance, :admin_privileges], [:stats_read])
+    end
+
     test "status visibility count", %{conn: conn} do
       user = insert(:user)
       CommonAPI.post(user, %{visibility: "public", status: "hey"})
@@ -992,6 +1006,14 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
       assert %{"direct" => 0, "private" => 1, "public" => 0, "unlisted" => 1} =
                response["status_visibility"]
     end
+
+    test "it requires privileged role :stats_read", %{conn: conn} do
+      clear_config([:instance, :admin_privileges], [])
+
+      assert conn
+             |> get("/api/pleroma/admin/stats", instance: "lain.wired")
+             |> json_response(:forbidden)
+    end
   end
 
   describe "/api/pleroma/backups" do

test/pleroma/web/admin_api/controllers/instance_controller_test.exs

@@ -68,6 +68,7 @@ defmodule Pleroma.Web.AdminAPI.InstanceControllerTest do
   end
 
   test "DELETE /instances/:instance", %{conn: conn} do
+    clear_config([:instance, :admin_privileges], [:instance_delete])
     user = insert(:user, nickname: "lain@lain.com")
     post = insert(:note_activity, user: user)
 
@@ -81,5 +82,12 @@ defmodule Pleroma.Web.AdminAPI.InstanceControllerTest do
     assert response == "lain.com"
     refute Repo.reload(user).is_active
     refute Repo.reload(post)
+
+    clear_config([:instance, :admin_privileges], [])
+
+    response =
+      conn
+      |> delete("/api/pleroma/admin/instances/lain.com")
+      |> json_response(:forbidden)
   end
 end