+ defmodule MetricsExporterCaller do
+ @behaviour Plug
+
+ def init(opts), do: opts
+
+ def call(conn, opts) do
+ prometheus_config = Application.get_env(:prometheus, MetricsExporter, [])
+ ip_whitelist = List.wrap(prometheus_config[:ip_whitelist])
+
+ cond do
+ !prometheus_config[:enabled] ->
+ conn
+
+ ip_whitelist != [] and
+ !Enum.find(ip_whitelist, fn ip ->
+ Pleroma.Helpers.InetHelper.parse_address(ip) == {:ok, conn.remote_ip}
+ end) ->
+ conn
+
+ true ->
+ MetricsExporter.call(conn, opts)
+ end
+ end
+ end
+