public function purge()
{
$this->language->load('module/pagecache');
$which = $this->request->get['which'];
if ($which != "all" && $which != "expired") {
$this->response->setOutput(json_encode(array('error' => 'invalid value for which')));
return;
}
require_once DIR_SYSTEM . 'library/pagecache.php';
$pagecache = new PageCache();
$vals = $pagecache->Settings();
$expire = $vals['expire'];
$cachefolder = $vals['cachefolder'];
$range = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f');
$count = 0;
foreach ($range as $f) {
foreach ($range as $s) {
$dname = $cachefolder . $f . '/' . $s;
if (is_dir($dname) && @($dir = opendir($dname))) {
while (false !== ($file = readdir($dir))) {
// only purge files that end in .cache
if (substr($file, -6) == '.cache') {
$fpath = $dname . '/' . $file;
if ($which == 'all') {
unlink($fpath);
$count++;
} elseif ($which == 'expired') {
if (filectime($fpath) + $expire < time()) {
unlink($fpath);
$count++;
}
}
}
}
}
}
}
$message = sprintf($this->language->get('pc_purged'), $count);
$this->response->setOutput(json_encode(array('success' => $message)));
}
