This is one of those facinating problems:
As far as I can see this might work..
anyone know about http head requests??? - can it be detected?
this script assumes that if a cache file exists then it should pump it out..
now if you 'exit' in the page, then in theory no cache file will be generated.
?? I have no idea what happens to ob_start though?????
may also be worth adding a 'if $AUTH' or if !$midgard->sitegroup ???
the cache file expires every hour... (i think)
thoughts on fine tuning this, something like it could go in the manual???
in the midgard-root.php (php4 only)
if (($REQUEST_METHOD="GET") && !ereg("?",$REQUEST_URI)) {
// look for a cache file
$ob_cachefile = "/tmp/cache/" .md5($HTTP_HOST . $REQUEST_URI);
// self expiry :)
if (file_exists($ob_cachefile))
$filetime = filemtime($ob_cachefile);
$expiry = $filetime + 1200
if ($expiry < time()) {
unlink($ob_cachefile);
} else {
header("Expiry: " .date(..... $expiry));
header("Last-Modified: " .$filetime);
// stop here if the on head request - HOW???
passthru("cat $ob_cachefile);
exit;
}
}
ob_start();
// or even ob_start ("ob_gzhandler");
}
// the mgd_template_stuff... here
if ($ob_cachefile) {
$fh = fopen($ob_cachefile,"w");
fwrite($fh, ob_get_contents());
fclose($fh);
}
ob_end_clean();
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