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| author | Chad Little <clittle@users.sourceforge.net> | 2002-11-21 07:54:38 +0000 |
|---|---|---|
| committer | Chad Little <clittle@users.sourceforge.net> | 2002-11-21 07:54:38 +0000 |
| commit | e4c42a919fa9b6076afeb1f77fd0f1783421bad1 (patch) | |
| tree | 61e8c264e477df9f29cffc2cf93b632fc4390520 /rss | |
| parent | df2e7ea03b96ea00f765a3c6d7bf61d456689e37 (diff) | |
| download | phpicalendar-e4c42a919fa9b6076afeb1f77fd0f1783421bad1.tar.gz phpicalendar-e4c42a919fa9b6076afeb1f77fd0f1783421bad1.tar.bz2 phpicalendar-e4c42a919fa9b6076afeb1f77fd0f1783421bad1.zip | |
HTTP Conditional GET patch applied.
Diffstat (limited to 'rss')
| -rw-r--r-- | rss/rss.php | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/rss/rss.php b/rss/rss.php index 4ae73f0..9bdd284 100644 --- a/rss/rss.php +++ b/rss/rss.php @@ -13,6 +13,22 @@ $rssview = $HTTP_GET_VARS['rssview']; $cal_displayname = str_replace("32", " ", $cal); $events_week = 0; +// calculate a value for Last Modified and ETag +$filemod = filemtime("../calendars/$cal.ics"); +$filemodtime = date("r", $filemod); + +//send relevant headers +header ("Last-Modified: $filemodtime"); +header ("ETag:\"$filemodtime\""); + +// checks the user agents headers to see if they kept track of our +// stuff, if so be nice and send back a 304 and exit. + +if ( ($_SERVER['HTTP_IF_MODIFIED_SINCE'] == $filemodtime) || ($_SERVER['HTTP_IF_NONE_MATCH'] == $filemodtime)) +{ + header ("HTTP/1.1 304 Not Modified"); + exit; +} if ($rssview == "day") { $theview = $day_lang; @@ -156,7 +172,7 @@ $rss .= '</channel>'."\n"; $rss .= '</rss>'."\n"; header ("Content-Type: text/xml"); -echo "$rss"; +echo "$rss"; ?> |