From ccb56e827ca887829f7a929e5e2f718df576c197 Mon Sep 17 00:00:00 2001
From: Uwe Steinmann <steinm@debian.org>
Date: Thu, 18 Jan 2018 08:48:32 +0100
Subject: [PATCH] add function sendFile()

---
 inc/inc.Utils.php | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/inc/inc.Utils.php b/inc/inc.Utils.php
index 327cdbf3f..1532ea793 100644
--- a/inc/inc.Utils.php
+++ b/inc/inc.Utils.php
@@ -586,4 +586,24 @@ function addDirSep($str) { /* {{{ */
 	else
 		return trim($str);
 } /* }}} */
+
+/**
+ * Send a file from disk to the browser
+ *
+ * This function uses either readfile() or the xѕendfile apache module if
+ * it is installed.
+ *
+ * @param string $filename
+ */
+function sendFile($filename) { /* {{{ */
+	if(function_exists('apache_get_modules') && in_array('mod_xsendfile',apache_get_modules())) {
+		header("X-Sendfile: ".$filename);
+	} else {
+		/* Make sure output buffering is off */
+		if (ob_get_level()) {
+			ob_end_clean();
+		}
+		readfile($filename);
+	}
+} /* }}} */
 ?>