diff --git a/image.php b/image.php index 94cb8e817..dcc7d806d 100644 --- a/image.php +++ b/image.php @@ -27,12 +27,22 @@ $filename = CACHE_DIR . '/images/' . $hash . '.png'; if (file_exists($filename)) { - header("Content-type: image/png"); - $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)). " GMT"; - header("Last-Modified: $stamp", true); - - readfile($filename); + /* See if we can use X-Sendfile */ + $xsendfile = false; + if (function_exists('apache_get_modules') && + array_search('mod_xsendfile', apache_get_modules())) + $xsendfile = true; + if ($xsendfile) { + header("X-Sendfile: $filename"); + header("Content-type: application/octet-stream"); + header('Content-Disposition: attachment; filename="' . basename($filename) . '"'); + } else { + header("Content-type: image/png"); + $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)). " GMT"; + header("Last-Modified: $stamp", true); + readfile($filename); + } } else { header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); echo "File not found.";