From 85244fa0d06eec620f8476817f68d8ea2dca0e38 Mon Sep 17 00:00:00 2001
From: ArthurHoaro <arthur@hoa.ro>
Date: Sun, 28 Feb 2016 16:24:18 +0100
Subject: Fixes #477: support multi reverse proxy with comma syntax

Going through multiple reverse proxy will store multiple scheme and port in HTTP header separated by a comma. Shaarli will use the first one to generate server_url.
---
 application/HttpUtils.php | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'application')

diff --git a/application/HttpUtils.php b/application/HttpUtils.php
index e2c1cb47..af7cb371 100644
--- a/application/HttpUtils.php
+++ b/application/HttpUtils.php
@@ -106,11 +106,21 @@ function server_url($server)
     // Shaarli is served behind a proxy
     if (isset($server['HTTP_X_FORWARDED_PROTO'])) {
         // Keep forwarded scheme
-        $scheme = $server['HTTP_X_FORWARDED_PROTO'];
+        if (strpos($server['HTTP_X_FORWARDED_PROTO'], ',') !== false) {
+            $schemes = explode(',', $server['HTTP_X_FORWARDED_PROTO']);
+            $scheme = trim($schemes[0]);
+        } else {
+            $scheme = $server['HTTP_X_FORWARDED_PROTO'];
+        }
 
         if (isset($server['HTTP_X_FORWARDED_PORT'])) {
             // Keep forwarded port
-            $port = ':'.$server['HTTP_X_FORWARDED_PORT'];
+            if (strpos($server['HTTP_X_FORWARDED_PORT'], ',') !== false) {
+                $ports = explode(',', $server['HTTP_X_FORWARDED_PORT']);
+                $port = ':' . trim($ports[0]);
+            } else {
+                $port = ':' . $server['HTTP_X_FORWARDED_PORT'];
+            }
         }
 
         return $scheme.'://'.$server['SERVER_NAME'].$port;
-- 
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