From 3fbe5ca4a40ea38de0e91cb89dabaa732ff23b60 Mon Sep 17 00:00:00 2001
From: Pim van den Berg
Date: Tue, 12 Jan 2010 20:08:00 +0100
Subject: make browser cache time for images configurable

---
 type/Default.class.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'type')

diff --git a/type/Default.class.php b/type/Default.class.php
index ad880b3..ade3a16 100644
--- a/type/Default.class.php
+++ b/type/Default.class.php
@@ -5,6 +5,7 @@
 class Type_Default {
 	var $datadir;
 	var $rrdtool;
+	var $cache;
 	var $args;
 	var $seconds;
 	var $data_sources = array('value');
@@ -25,6 +26,7 @@ class Type_Default {
 	function __construct($config) {
 		$this->datadir = $config['datadir'];
 		$this->rrdtool = $config['rrdtool'];
+		$this->cache = $config['cache'];
 		$this->parse_get();
 		$this->rrd_files();
 		$this->identifiers = $this->file2identifier($this->files);
@@ -114,7 +116,8 @@ class Type_Default {
 		
 		if(!$debug) {
 			# caching
-			header("Expires: " . date(DATE_RFC822,strtotime("90 seconds")));
+			if (is_numeric($this->cache) && $this->cache > 0)
+				header("Expires: " . date(DATE_RFC822,strtotime($this->cache." seconds")));
 			header("content-type: image/png");
 			$graphdata = implode(' ', $graphdata);
 			echo `$graphdata`;
-- 
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