adding HTTP_X_FORWARDED_FOR support

1 files changed, 5 insertions, 1 deletions

diff --git a/index.php b/index.php
index 5eef817..7c7f6a8 100644
--- a/index.php
+++ b/index.php
@@ -157,7 +157,11 @@ final class LookingGlass {
 
     if (!isset($this->frontpage['show_visitor_ip']) ||
       $this->frontpage['show_visitor_ip']) {
-      print 'Your IP address: '.htmlentities($_SERVER['REMOTE_ADDR']).'<br />';
+        if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+          print 'Your IP address: '.htmlentities($_SERVER['HTTP_X_FORWARDED_FOR']).'<br />';
+        } else {
+          print 'Your IP address: '.htmlentities($_SERVER['REMOTE_ADDR']).'<br />';
+        }
     }
 
     if (isset($this->frontpage['disclaimer'])) {