From 4f9e1a9342912890970794a64ca547cf4f4d2c0d Mon Sep 17 00:00:00 2001
From: Bernd Stellwag <burned@zerties.org>
Date: Sat, 10 Oct 2020 18:41:06 +0200
Subject: [PATCH] use correct name for accessing the X-Real-IP header via
 $_SERVER variable (#365)

---
 backend/getIP.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/getIP.php b/backend/getIP.php
index 136bb15..0eb2f3a 100644
--- a/backend/getIP.php
+++ b/backend/getIP.php
@@ -18,8 +18,8 @@ function getClientIp()
 {
     if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
         $ip = $_SERVER['HTTP_CLIENT_IP'];
-    } elseif (!empty($_SERVER['X-Real-IP'])) {
-        $ip = $_SERVER['X-Real-IP'];
+    } elseif (!empty($_SERVER['HTTP_X_REAL_IP'])) {
+        $ip = $_SERVER['HTTP_X_REAL_IP'];
     } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
         $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
         $ip = preg_replace('/,.*/', '', $ip); # hosts are comma-separated, client is first