Current File : /home/admin/domains/happytokorea.com/public_html_bk/components/libraries/cmslib/libraries/cache.php
<?php
(defined('_VALID_MOS') OR defined('_JEXEC')) or die('Direct Access to this location is not allowed.');
define('CMSCACHE_TIMEOUT', 1800);
if(!defined('CMS_CACHE_PATH'))
define('CMS_CACHE_PATH',(dirname(dirname(dirname(dirname(dirname(__FILE__)))))). '/components/libraries/cmslib/cache');
class CMSCache {
var $cachetype;
var $cms;
var $cache;
function CMSCache(){
// If APC is available, use it
if(function_exists('apc_store')){
$this->cache = new CMSCache_APC();
} else {
$this->cache = new CMSCache_Filesystem();
}
}
// do a function call
function call(){
$numargs = func_num_args();
$fname = '';
$arglist = array();
$arglist = func_get_args();
// Get function name
$fname = array_shift($arglist);
// Get cache group
//$fname = array_shift($arglist);
$fkey = $fname. serialize($arglist) . serialize($_SERVER['REQUEST_URI']);
if(!$data = $this->cache->fetch($fkey)){
$data = call_user_func_array($fname, $arglist);
$this->cache->store($fkey, $data, CMSCACHE_TIMEOUT);
}
return $data;
}
function fetch($key){
return $this->cache->fetch($key);
}
function store($key, $data, $ttl=CMSCACHE_TIMEOUT){
$this->cache->store($key, $data, $ttl);
}
function delete($key){
$this->cache->delete($key);
}
// clear all cache
function clear(){
$this->cache->clear();
}
}
class CMSCacheBase {
function fetch($key){
}
function store($key, $data, $ttl=CMSCACHE_TIMEOUT){
}
function delete($key){
}
// clear all cache
function clear(){
}
}
class CMSCache_Filesystem extends CMSCacheBase {
// This is the function you store information with
function store($key,$data,$ttl = CMSCACHE_TIMEOUT) {
// Opening the file in read/write mode
$h = @fopen($this->getFileName($key),'w');
if (!$h) {
return;
//throw new Exception('Could not write to cache');
}
// Serializing along with the TTL
$data = serialize(array(time()+$ttl,$data));
if (@fwrite($h,$data)===false) {
return;
}
fclose($h);
}
// The function to fetch data returns false on failure
function fetch($key) {
$filename = $this->getFileName($key);
if (!file_exists($filename)) return false;
$h = fopen($filename,'r');
if (!$h) return false;
// Getting a shared lock
flock($h,LOCK_SH);
$data = file_get_contents($filename);
fclose($h);
$data = @unserialize($data);
if (!$data) {
// If unserializing somehow didn't work out, we'll delete the file
unlink($filename);
return false;
}
if (time() > $data[0]) {
// Unlinking when the file was expired
unlink($filename);
return false;
}
return $data[1];
}
function delete( $key ) {
$filename = $this->getFileName($key);
if (file_exists($filename)) {
return unlink($filename);
} else {
return false;
}
}
function getFileName($key) {
// Use CMS_CACHE_PATH instead of mosConfig_cachepath
return CMS_CACHE_PATH . '/cache_' . md5($key);
//return ini_get('session.save_path') . '/cache' . md5($key);
//return dirname(dirname(__FILE__)). '/cache/cache_' . md5($key);
}
// clear all cache
function clear(){
// Define the full path to your folder from root
global $mosConfig_cachepath;
$path = $mosConfig_cachepath;
// Open the folder
$dir_handle = @opendir($path);
// Check if the directory is opened correctly.
if($dir_handle){
while (false !== ($file = readdir($dir_handle))) {
if(is_file($path . $file)){
if(substr($file, 0, 5) == 'cache')
@unlink($path . $file);
}
}
// Close
closedir($dir_handle);
}
}
}
class CMSCache_APC extends CMSCacheBase {
function fetch($key) {
return apc_fetch($key);
}
function store($key,$data,$ttl) {
return apc_store($key,$data,$ttl);
}
function delete($key) {
return apc_delete($key);
}
// clear all cache
function clear(){
apc_clear_cache("user");
}
}