From 328d7b55c8cb4d56492356a73df19f7c59784d82 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Sat, 14 Nov 2020 15:13:35 +0300
Subject: [PATCH] URLHelper: fix E_DEPRECATED error related to idn_to_ascii()

---
 classes/urlhelper.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/classes/urlhelper.php b/classes/urlhelper.php
index d7b7d004a..cc1074c55 100644
--- a/classes/urlhelper.php
+++ b/classes/urlhelper.php
@@ -67,7 +67,11 @@ class UrlHelper {
 		//convert IDNA hostname to punycode if possible
 		if (function_exists("idn_to_ascii")) {
 			if (mb_detect_encoding($tokens['host']) != 'ASCII') {
-				$tokens['host'] = idn_to_ascii($tokens['host']);
+				if (defined('IDNA_NONTRANSITIONAL_TO_ASCII') && defined('INTL_IDNA_VARIANT_UTS46')) {
+					$tokens['host'] = idn_to_ascii($tokens['host'], IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
+				} else {
+					$tokens['host'] = idn_to_ascii($tokens['host']);
+				}
 			}
 		}