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126 lines
5.0 KiB
PHP
126 lines
5.0 KiB
PHP
<?php
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/**
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* Smarty Extension Clear
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*
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* $smarty->clear() method file cache file resource
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*
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* @package Smarty
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* @subpackage PluginsInternal
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* @author Uwe Tews
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*/
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class Smarty_Internal_Extension_Clear
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{
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/**
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* Empty cache for a specific template
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*
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* @param Smarty $smarty
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* @param string $resource_name template name
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* @param string $cache_id cache id
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* @param string $compile_id compile id
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* @param integer $exp_time expiration time (number of seconds, not timestamp)
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*
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* @return integer number of cache files deleted
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*/
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public static function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time)
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{
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$_cache_id = isset($cache_id) ? preg_replace('![^\w\|]+!', '_', $cache_id) : null;
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$_compile_id = isset($compile_id) ? preg_replace('![^\w]+!', '_', $compile_id) : null;
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$_dir_sep = $smarty->use_sub_dirs ? '/' : '^';
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$_compile_id_offset = $smarty->use_sub_dirs ? 3 : 0;
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$_dir = $smarty->getCacheDir();
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if ($_dir == '/') { //We should never want to delete this!
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return 0;
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}
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$_dir_length = strlen($_dir);
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if (isset($_cache_id)) {
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$_cache_id_parts = explode('|', $_cache_id);
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$_cache_id_parts_count = count($_cache_id_parts);
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if ($smarty->use_sub_dirs) {
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foreach ($_cache_id_parts as $id_part) {
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$_dir .= $id_part . DS;
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}
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}
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}
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if (isset($resource_name)) {
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$_save_stat = $smarty->caching;
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$smarty->caching = true;
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$tpl = new $smarty->template_class($resource_name, $smarty);
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$smarty->caching = $_save_stat;
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// remove from template cache
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$tpl->source; // have the template registered before unset()
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if ($tpl->source->exists) {
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$_resourcename_parts = basename(str_replace('^', '/', $tpl->cached->filepath));
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} else {
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return 0;
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}
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}
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$_count = 0;
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$_time = time();
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if (file_exists($_dir)) {
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$_cacheDirs = new RecursiveDirectoryIterator($_dir);
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$_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST);
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foreach ($_cache as $_file) {
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if (substr(basename($_file->getPathname()), 0, 1) == '.' || strpos($_file, '.svn') !== false) {
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continue;
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}
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// directory ?
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if ($_file->isDir()) {
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if (!$_cache->isDot()) {
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// delete folder if empty
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@rmdir($_file->getPathname());
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}
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} else {
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$_parts = explode($_dir_sep, str_replace('\\', '/', substr((string) $_file, $_dir_length)));
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$_parts_count = count($_parts);
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// check name
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if (isset($resource_name)) {
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if ($_parts[$_parts_count - 1] != $_resourcename_parts) {
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continue;
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}
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}
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// check compile id
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if (isset($_compile_id) && (!isset($_parts[$_parts_count - 2 - $_compile_id_offset]) ||
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$_parts[$_parts_count - 2 - $_compile_id_offset] != $_compile_id)
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) {
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continue;
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}
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// check cache id
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if (isset($_cache_id)) {
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// count of cache id parts
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$_parts_count = (isset($_compile_id)) ? $_parts_count - 2 - $_compile_id_offset :
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$_parts_count - 1 - $_compile_id_offset;
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if ($_parts_count < $_cache_id_parts_count) {
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continue;
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}
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for ($i = 0; $i < $_cache_id_parts_count; $i ++) {
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if ($_parts[$i] != $_cache_id_parts[$i]) {
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continue 2;
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}
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}
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}
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// expired ?
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if (isset($exp_time)) {
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if ($exp_time < 0) {
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preg_match('#\'cache_lifetime\' =>\s*(\d*)#', file_get_contents($_file), $match);
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if ($_time < (@filemtime($_file) + $match[1])) {
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continue;
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}
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} else {
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if ($_time - @filemtime($_file) < $exp_time) {
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continue;
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}
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}
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}
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$_count += @unlink((string) $_file) ? 1 : 0;
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if (function_exists('opcache_invalidate')) {
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opcache_invalidate((string) $_file);
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}
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}
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}
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}
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return $_count;
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}
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} |