function jpcache_filewrite($filename, $data)
{
$return = FALSE;
// Lock file, ignore warnings as we might be creating this file
$fpt = @fopen($filename, "rb");
@flock($fpt, LOCK_EX);
// php.net suggested I should use wb to make it work under Windows
$fp = @fopen($filename, "wb+");
if (!$fp) {
// Strange! We are not able to write the file!
jpcache_debug("Failed to open for write of {$filename}");
} else {
fwrite($fp, $data, strlen($data));
fclose($fp);
$return = TRUE;
}
// Release lock
@flock($fpt, LOCK_UN);
@fclose($fpt);
// Return
return $return;
}
function do_txp_logging()
{
global $txpcfg, $prefs, $siteurl, $DB;
if ($txpcfg == '') {
jpcache_debug('Txp-logging disabled. Include jpcache after config.php.');
return;
}
include $txpcfg['txpath'] . '/lib/txplib_db.php';
$prefs = get_prefs();
$siteurl = $prefs['siteurl'];
if ($prefs['logging'] == 'refer') {
$this->logit('refer');
} elseif ($prefs['logging'] == 'all') {
$this->logit();
}
jpcache_debug('Logged hit per txp-configuration.');
}
function jpcache_end($contents)
{
jpcache_debug("Callback happened");
$datasize = strlen($contents);
$datacrc = crc32($contents);
if ($GLOBALS["JPCACHE_USE_GZIP"]) {
$gzdata = gzcompress($contents, $GLOBALS["JPCACHE_GZIP_LEVEL"]);
} else {
$gzdata = $contents;
}
// If the connection was aborted, do not write the cache.
// We don't know if the data we have is valid, as the user
// has interupted the generation of the page.
// Also check if jpcache is not disabled
if (!connection_aborted() && $GLOBALS["JPCACHE_ON"] && $GLOBALS["JPCACHE_TIME"] >= 0) {
jpcache_debug("Writing cached data to storage");
// write the cache with the current data
jpcache_write($gzdata, $datasize, $datacrc);
}
// Handle type-specific additional code if required
jpcache_do_end();
// Return flushed data
return jpcache_flush($gzdata, $datasize, $datacrc);
}
