Refactor network to a top-level module

network/socks5.go

@@ -0,0 +1,17 @@
+package network
+
+import (
+	"fmt"
+	"net/url"
+
+	"golang.org/x/net/proxy"
+)
+
+func NewSocks5Dialer(baseDialer Dialer, proxyURL *url.URL) (Dialer, error) {
+	rv, err := proxy.FromURL(proxyURL, baseDialer)
+	if err != nil {
+		return nil, fmt.Errorf("cannot initialize socks5 proxy dialer: %w", err)
+	}
+
+	return rv.(Dialer), nil
+}