add (hidden) _NGINX_XACCEL_PREFIX which uses nginx X-Accel-Redirect to serve static...

diff --git a/include/functions.php b/include/functions.php
index b6e49716cd88ee710ede90a9fb835fb996f35761..a4e0e4d0221b70e579086dae9e0187c5406add86 100755 (executable)
--- a/include/functions.php
+++ b/include/functions.php
@@ -2586,7 +2586,13 @@
                        $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)) . " GMT";
                        header("Last-Modified: $stamp", true);
 
-                       return readfile($filename);
+                       if (defined('_NGINX_XACCEL_PREFIX') && _NGINX_XACCEL_PREFIX) {
+                               header("X-Accel-Redirect: " . _NGINX_XACCEL_PREFIX . "/" . $filename);
+
+                               return false;
+                       } else {
+                               return readfile($filename);
+                       }
                } else {
                        return false;
                }