passing options for gun

lib/pleroma/gun/connections.ex

@@ -11,6 +11,20 @@ defmodule Pleroma.Gun.Connections do
           conns: %{domain() => conn()}
         }
 
+  @gun_keys [
+    :connect_timeout,
+    :http_opts,
+    :http2_opts,
+    :protocols,
+    :retry,
+    :retry_timeout,
+    :trace,
+    :transport,
+    :tls_opts,
+    :tcp_opts,
+    :ws_opts
+  ]
+
   defstruct conns: %{}
 
   def start_link(name \\ __MODULE__) do
@@ -81,7 +95,8 @@ defmodule Pleroma.Gun.Connections do
         {:noreply, state}
 
       nil ->
-        {:ok, conn} = Pleroma.Gun.API.open(to_charlist(uri.host), uri.port, opts)
+        {:ok, conn} =
+          Pleroma.Gun.API.open(to_charlist(uri.host), uri.port, Map.take(opts, @gun_keys))
 
         state =
           put_in(state.conns[key], %Pleroma.Gun.Conn{

lib/pleroma/http/http.ex

@@ -62,7 +62,7 @@ defmodule Pleroma.HTTP do
   end
 
   defp get_conn_for_gun(url, options) do
-    case Pleroma.Gun.Connections.get_conn(url) do
+    case Pleroma.Gun.Connections.get_conn(url, options) do
       nil ->
         options
 
@@ -86,8 +86,15 @@ defmodule Pleroma.HTTP do
     host = uri.host |> to_charlist()
 
     case uri.scheme do
-      "https" -> options ++ [ssl: [server_name_indication: host]]
+      "https" ->
-      _ -> options
+        tls_opts =
+          Keyword.get(options, :tls_opts, [])
+          |> Keyword.put(:server_name_indication, host)
+
+        Keyword.put(options, :tls_opts, tls_opts) ++ [ssl: [server_name_indication: host]]
+
+      _ ->
+        options
     end
   end