/home/smartonegroup/public_html/system/vendor/smarty/smarty/src/Cacheresource/File.php
<?php
namespace Smarty\Cacheresource;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
use Smarty\Smarty;
use Smarty\Template;
use Smarty\Template\Cached;
/**
* Smarty Internal Plugin CacheResource File
*
* @author Uwe Tews
* @author Rodney Rehm
*/
/**
* This class does contain all necessary methods for the HTML cache on file system
* Implements the file system as resource for the HTML cache Version using nocache inserts.
*/
class File extends Base
{
/**
* populate Cached Object with metadata from Resource
*
* @param Cached $cached cached object
* @param Template $_template template object
*
* @return void
*/
public function populate(Cached $cached, Template $_template)
{
$source = $_template->getSource();
$smarty = $_template->getSmarty();
$_compile_dir_sep = $smarty->use_sub_dirs ? DIRECTORY_SEPARATOR : '^';
$_filepath = $source->uid;
$cached->filepath = $smarty->getCacheDir();
if (isset($_template->cache_id)) {
$cached->filepath .= preg_replace(
array(
'![^\w|]+!',
'![|]+!'
),
array(
'_',
$_compile_dir_sep
),
$_template->cache_id
) . $_compile_dir_sep;
}
if (isset($_template->compile_id)) {
$cached->filepath .= preg_replace('![^\w]+!', '_', $_template->compile_id) . $_compile_dir_sep;
}
// if use_sub_dirs, break file into directories
if ($smarty->use_sub_dirs) {
$cached->filepath .= $_filepath[ 0 ] . $_filepath[ 1 ] . DIRECTORY_SEPARATOR . $_filepath[ 2 ] .
$_filepath[ 3 ] .
DIRECTORY_SEPARATOR .
$_filepath[ 4 ] . $_filepath[ 5 ] . DIRECTORY_SEPARATOR;
}
$cached->filepath .= $_filepath . '_' . $source->getBasename();
if ($smarty->cache_locking) {
$cached->lock_id = $cached->filepath . '.lock';
}
$cached->filepath .= '.php';
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
}
}
/**
* populate Cached Object with timestamp and exists from Resource
*
* @param Cached $cached cached object
*
* @return void
*/
public function populateTimestamp(Cached $cached)
{
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
}
}
/**
* Read the cached template and process its header
*
* @param Template $_smarty_tpl do not change variable name, is used by compiled template
* @param Cached|null $cached cached object
* @param bool $update flag if called because cache update
*
* @return boolean true or false if the cached content does not exist
*/
public function process(
Template $_smarty_tpl,
?Cached $cached = null,
$update = false
) {
$_smarty_tpl->getCached()->setValid(false);
if ($update && defined('HHVM_VERSION')) {
eval('?>' . file_get_contents($_smarty_tpl->getCached()->filepath));
return true;
} else {
return @include $_smarty_tpl->getCached()->filepath;
}
}
/**
* Write the rendered template output to cache
*
* @param Template $_template template object
* @param string $content content to cache
*
* @return bool success
* @throws \Smarty\Exception
*/
public function storeCachedContent(Template $_template, $content)
{
if ($_template->getSmarty()->writeFile($_template->getCached()->filepath, $content) === true) {
if (function_exists('opcache_invalidate')
&& (!function_exists('ini_get') || strlen(ini_get('opcache.restrict_api'))) < 1
) {
opcache_invalidate($_template->getCached()->filepath, true);
} elseif (function_exists('apc_compile_file')) {
apc_compile_file($_template->getCached()->filepath);
}
$cached = $_template->getCached();
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
return true;
}
}
return false;
}
/**
* Read cached template from cache
*
* @param Template $_template template object
*
* @return string content
*/
public function retrieveCachedContent(Template $_template)
{
if (is_file($_template->getCached()->filepath)) {
return file_get_contents($_template->getCached()->filepath);
}
return false;
}
/**
* Empty cache
*
* @param Smarty $smarty
* @param integer $exp_time expiration time (number of seconds, not timestamp)
*
* @return integer number of cache files deleted
*/
public function clearAll(Smarty $smarty, $exp_time = null)
{
return $this->clear($smarty, null, null, null, $exp_time);
}
/**
* Empty cache for a specific template
*
* @param Smarty $smarty
* @param string $resource_name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param integer $exp_time expiration time (number of seconds, not timestamp)
*
* @return integer number of cache files deleted
*/
public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time)
{
$_cache_id = isset($cache_id) ? preg_replace('![^\w\|]+!', '_', $cache_id) : null;
$_compile_id = isset($compile_id) ? preg_replace('![^\w]+!', '_', $compile_id) : null;
$_dir_sep = $smarty->use_sub_dirs ? '/' : '^';
$_compile_id_offset = $smarty->use_sub_dirs ? 3 : 0;
$_dir = $smarty->getCacheDir();
if ($_dir === '/') { //We should never want to delete this!
return 0;
}
$_dir_length = strlen($_dir);
if (isset($_cache_id)) {
$_cache_id_parts = explode('|', $_cache_id);
$_cache_id_parts_count = count($_cache_id_parts);
if ($smarty->use_sub_dirs) {
foreach ($_cache_id_parts as $id_part) {
$_dir .= $id_part . '/';
}
}
}
if (isset($resource_name)) {
$_save_stat = $smarty->caching;
$smarty->caching = \Smarty\Smarty::CACHING_LIFETIME_CURRENT;
$tpl = $smarty->doCreateTemplate($resource_name);
$smarty->caching = $_save_stat;
// remove from template cache
if ($tpl->getSource()->exists) {
$_resourcename_parts = basename(str_replace('^', '/', $tpl->getCached()->filepath));
} else {
return 0;
}
}
$_count = 0;
$_time = time();
if (file_exists($_dir)) {
$_cacheDirs = new RecursiveDirectoryIterator($_dir);
$_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST);
foreach ($_cache as $_file) {
if (substr(basename($_file->getPathname()), 0, 1) === '.') {
continue;
}
$_filepath = (string)$_file;
// directory ?
if ($_file->isDir()) {
if (!$_cache->isDot()) {
// delete folder if empty
@rmdir($_file->getPathname());
}
} else {
// delete only php files
if (substr($_filepath, -4) !== '.php') {
continue;
}
$_parts = explode($_dir_sep, str_replace('\\', '/', substr($_filepath, $_dir_length)));
$_parts_count = count($_parts);
// check name
if (isset($resource_name)) {
if ($_parts[ $_parts_count - 1 ] !== $_resourcename_parts) {
continue;
}
}
// check compile id
if (isset($_compile_id) && (!isset($_parts[ $_parts_count - 2 - $_compile_id_offset ])
|| $_parts[ $_parts_count - 2 - $_compile_id_offset ] !== $_compile_id)
) {
continue;
}
// check cache id
if (isset($_cache_id)) {
// count of cache id parts
$_parts_count = (isset($_compile_id)) ? $_parts_count - 2 - $_compile_id_offset :
$_parts_count - 1 - $_compile_id_offset;
if ($_parts_count < $_cache_id_parts_count) {
continue;
}
for ($i = 0; $i < $_cache_id_parts_count; $i++) {
if ($_parts[ $i ] !== $_cache_id_parts[ $i ]) {
continue 2;
}
}
}
if (is_file($_filepath)) {
// expired ?
if (isset($exp_time)) {
if ($exp_time < 0) {
preg_match('#\'cache_lifetime\' =>\s*(\d*)#', file_get_contents($_filepath), $match);
if ($_time < (filemtime($_filepath) + $match[ 1 ])) {
continue;
}
} else {
if ($_time - filemtime($_filepath) < $exp_time) {
continue;
}
}
}
$_count += @unlink($_filepath) ? 1 : 0;
if (function_exists('opcache_invalidate')
&& (!function_exists('ini_get') || strlen(ini_get("opcache.restrict_api")) < 1)
) {
opcache_invalidate($_filepath, true);
} elseif (function_exists('apc_delete_file')) {
apc_delete_file($_filepath);
}
}
}
}
}
return $_count;
}
/**
* Check is cache is locked for this template
*
* @param Smarty $smarty Smarty object
* @param Cached $cached cached object
*
* @return boolean true or false if cache is locked
*/
public function hasLock(Smarty $smarty, Cached $cached)
{
clearstatcache(true, $cached->lock_id ?? '');
if (null !== $cached->lock_id && is_file($cached->lock_id)) {
$t = filemtime($cached->lock_id);
return $t && (time() - $t < $smarty->locking_timeout);
} else {
return false;
}
}
/**
* Lock cache for this template
*
* @param Smarty $smarty Smarty object
* @param Cached $cached cached object
*
* @return void
*/
public function acquireLock(Smarty $smarty, Cached $cached)
{
$cached->is_locked = true;
touch($cached->lock_id);
}
/**
* Unlock cache for this template
*
* @param Smarty $smarty Smarty object
* @param Cached $cached cached object
*
* @return void
*/
public function releaseLock(Smarty $smarty, Cached $cached)
{
$cached->is_locked = false;
@unlink($cached->lock_id);
}
}