<?php
/**
* Cache handlers
*
* @copyright (c) 2000-2016 XOOPS Project (www.xoops.org)
* @license GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html)
* @author Taiwen Jiang <phppp@users.sourceforge.net>
* @since 1.00
* @package Frameworks
* @subpackage art
*/
if (!defined('FRAMEWORKS_ART_FUNCTIONS_CACHE')):
define('FRAMEWORKS_ART_FUNCTIONS_CACHE', true);
/**
* @param null|array $groups
*
* @return string
*/
function mod_generateCacheId_byGroup($groups = null)
{
global $xoopsUser;
if (!empty($groups) && is_array($groups)) {
} elseif (is_object($xoopsUser)) {
$groups = $xoopsUser->getGroups();
}
if (!empty($groups) && is_array($groups)) {
sort($groups);
$contentCacheId = substr(md5(implode(',', $groups) . XOOPS_DB_PASS . XOOPS_DB_NAME), 0, strlen(XOOPS_DB_USER) * 2);
} else {
$contentCacheId = XOOPS_GROUP_ANONYMOUS;
}
return $contentCacheId;
}
/**
* @param null $groups
*
* @return string
*/
function mod_generateCacheId($groups = null)
{
return mod_generateCacheId_byGroup($groups);
}
/**
* @param $data
* @param null|string $name
* @param null|string $dirname
* @param string $root_path
*
* @return bool
*/
function mod_createFile($data, $name = null, $dirname = null, $root_path = XOOPS_CACHE_PATH)
{
global $xoopsModule;
$name = $name ? : (string)time();
$dirname = $dirname ? : (is_object($xoopsModule) ? $xoopsModule->getVar('dirname', 'n') : 'system');
xoops_load('XoopsCache');
$key = "{$dirname}_{$name}";
return XoopsCache::write($key, $data);
}
/**
* @param $data
* @param null $name
* @param null $dirname
*
* @return bool
*/
function mod_createCacheFile($data, $name = null, $dirname = null)
{
return mod_createFile($data, $name, $dirname);
}
/**
* @param $data
* @param null|string $name
* @param null $dirname
* @param null $groups
*
* @return bool
*/
function mod_createCacheFile_byGroup($data, $name = null, $dirname = null, $groups = null)
{
$name .= mod_generateCacheId_byGroup();
return mod_createCacheFile($data, $name, $dirname);
}
/**
* @param $name
* @param null|string $dirname
* @param string $root_path
*
* @return mixed|null
*/
function mod_loadFile($name, $dirname = null, $root_path = XOOPS_CACHE_PATH)
{
global $xoopsModule;
$data = null;
if (empty($name)) {
return $data;
}
$dirname = $dirname ? : (is_object($xoopsModule) ? $xoopsModule->getVar('dirname', 'n') : 'system');
xoops_load('XoopsCache');
$key = "{$dirname}_{$name}";
return XoopsCache::read($key);
}
/**
* @param $name
* @param null $dirname
*
* @return mixed|null
*/
function mod_loadCacheFile($name, $dirname = null)
{
$data = mod_loadFile($name, $dirname);
return $data;
}
/**
* @param $name
* @param null $dirname
* @param null $groups
*
* @return mixed|null
*/
function mod_loadCacheFile_byGroup($name, $dirname = null, $groups = null)
{
$name .= mod_generateCacheId_byGroup();
$data = mod_loadFile($name, $dirname);
return $data;
}
/* Shall we use the function of glob for better performance ? */
/**
* @param string $name
* @param null $dirname
* @param string $root_path
*
* @return bool
*/
function mod_clearFile($name = '', $dirname = null, $root_path = XOOPS_CACHE_PATH)
{
if (empty($dirname)) {
$pattern = $dirname ? "{$dirname}_{$name}.*\.php" : "[^_]+_{$name}.*\.php";
if ($handle = opendir($root_path)) {
while (false !== ($file = readdir($handle))) {
if (is_file($root_path . '/' . $file) && preg_match("/{$pattern}$/", $file)) {
@unlink($root_path . '/' . $file);
}
}
closedir($handle);
}
} else {
$files = (array)glob($root_path . "/*{$dirname}_{$name}*.php");
foreach ($files as $file) {
@unlink($file);
}
}
return true;
}
/**
* @param string $name
* @param null $dirname
*
* @return bool
*/
function mod_clearCacheFile($name = '', $dirname = null)
{
return mod_clearFile($name, $dirname);
}
/**
* @param string $pattern
*
* @return bool
*/
function mod_clearSmartyCache($pattern = '')
{
global $xoopsModule;
if (empty($pattern)) {
$dirname = (is_object($xoopsModule) ? $xoopsModule->getVar('dirname', 'n') : 'system');
$pattern = "/(^{$dirname}\^.*\.html$|blk_{$dirname}_.*[^\.]*\.html$)/";
}
if ($handle = opendir(XOOPS_CACHE_PATH)) {
while (false !== ($file = readdir($handle))) {
if (is_file(XOOPS_CACHE_PATH . '/' . $file) && preg_match($pattern, $file)) {
@unlink(XOOPS_CACHE_PATH . '/' . $file);
}
}
closedir($handle);
}
return true;
}
endif;
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