Automatically confirm logged-in users

lib/pleroma/web/endpoint.ex

@@ -169,6 +169,8 @@ defmodule Pleroma.Web.Endpoint do
 
   plug(MetricsExporterCaller)
 
+  plug(Pleroma.Web.Plugs.ConfirmUserPlug)
+
   plug(Pleroma.Web.Router)
 
   @doc """

lib/pleroma/web/plugs/confirm_user_plug.ex

@@ -0,0 +1,30 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Plugs.ConfirmUserPlug do
+  @moduledoc """
+  If a user has ever been granted an OAuth token, they are eligible to become
+  confirmed, regardless of the account_activation_required setting. This plug
+  will confirm a user if found.
+  """
+
+  alias Pleroma.User
+  import Plug.Conn
+
+  def init(opts), do: opts
+
+  def call(%{assigns: %{user: %User{confirmation_pending: true} = user}} = conn, _opts) do
+    with {:ok, user} <- confirm_user(user) do
+      assign(conn, :user, user)
+    end
+  end
+
+  def call(conn, _opts), do: conn
+
+  defp confirm_user(%User{} = user) do
+    user
+    |> User.confirmation_changeset(need_confirmation: false)
+    |> User.update_and_set_cache()
+  end
+end