From d58534e8779dd9b4a6ac5386428ae562bc0b5fab Mon Sep 17 00:00:00 2001
From: Tobias Ollmann <tobias@holzgeist.at>
Date: Wed, 16 Sep 2015 19:23:20 +0200
Subject: Use HTTP_X_FORWARDED_HOST if available

This enables piwigo to be run e.g. in a docker container behind a proxy.
If HTTP_X_FORWARDED_HOST is not set, HTTP_HOST is used as usual
---
 include/functions_url.inc.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'include/functions_url.inc.php')

diff --git a/include/functions_url.inc.php b/include/functions_url.inc.php
index 5a471bc10..9cc6c9ec7 100644
--- a/include/functions_url.inc.php
+++ b/include/functions_url.inc.php
@@ -62,7 +62,14 @@ function get_absolute_root_url($with_scheme=true)
     {
       $url .= 'http://';
     }
-    $url .= $_SERVER['HTTP_HOST'];
+    if (isset($_SERVER['HTTP_X_FORWARDED_HOST']))
+    {
+      $url .= $_SERVER['HTTP_X_FORWARDED_HOST'];
+    }
+    else
+    {
+      $url .= $_SERVER['HTTP_HOST'];
+    }
     if ( (!$is_https && $_SERVER['SERVER_PORT'] != 80)
           ||($is_https && $_SERVER['SERVER_PORT'] != 443))
     {
-- 
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