From fbf8293902dc7312114b3281713d03bf977793c9 Mon Sep 17 00:00:00 2001 From: Ben Coburn Date: Fri, 24 Mar 2006 14:33:15 +0100 Subject: RSS update time and 304 Not Modified - Gives the wiki administrator control over how often the RSS feed is regenerated. - The RSS feed now handles conditional requests and returns HTTP '304 Not Modified' responses when possible. darcs-hash:20060324133315-05dcb-3b814e28523f2a0717222a4940d6fbbb28576cf5.gz --- feed.php | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'feed.php') diff --git a/feed.php b/feed.php index 9636e6555..d4bcba5fc 100644 --- a/feed.php +++ b/feed.php @@ -12,6 +12,7 @@ require_once(DOKU_INC.'inc/parserutils.php'); require_once(DOKU_INC.'inc/feedcreator.class.php'); require_once(DOKU_INC.'inc/auth.php'); + require_once(DOKU_INC.'inc/pageutils.php'); //close session session_write_close(); @@ -46,12 +47,17 @@ $cache = getCacheName($num.$type.$mode.$ns.$ltype.$_SERVER['REMOTE_USER'],'.feed'); // check cacheage and deliver if nothing has changed since last - // time (with 5 minutes settletime) + // time or the update interval has not passed, also handles conditional requests + header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); + header('Pragma: public'); + header('Content-Type: application/xml; charset=utf-8'); $cmod = @filemtime($cache); // 0 if not exists - if($cmod && ($cmod+(5*60) >= @filemtime($conf['changelog']))){ - header('Content-Type: application/xml; charset=utf-8'); + if($cmod && (($cmod+$conf['rss_update']>time()) || ($cmod>@filemtime($conf['changelog'])))){ + http_conditionalRequest($cmod); print io_readFile($cache); exit; + } else { + http_conditionalRequest(time()); } // create new feed @@ -79,7 +85,6 @@ io_saveFile($cache,$feed); // finally deliver - header('Content-Type: application/xml; charset=utf-8'); print $feed; // ---------------------------------------------------------------- // -- cgit v1.2.3