X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=image.php;h=a134e658e88c4a6b28e1c4b5f05d39e55c899f13;hb=89018afa13887c46de4c8ef8189fc7b500cdac0f;hp=cccda64b73380d0336aefedbff33f19a6c0fa0c1;hpb=05809dfdf7cbf7699be6408c0f49d325585726b5;p=tt-rss.git

diff --git a/image.php b/image.php
index cccda64b..a134e658 100644
--- a/image.php
+++ b/image.php
@@ -27,8 +27,24 @@
 		$filename = CACHE_DIR . '/images/' . $hash . '.png';
 
 		if (file_exists($filename)) {
-			header("Content-type: image/png");
-			echo file_get_contents($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: $stamp", true);
+				ob_clean();   // discard any data in the output buffer (if possible)
+				flush();      // flush headers (if possible)
+				readfile($filename);
+			}
 		} else {
 			header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
 			echo "File not found.";