205 lines
7.7 KiB
PHP
205 lines
7.7 KiB
PHP
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<?php
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/**
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* Smarty Internal Plugin CacheResource File
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*
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* Implements the file system as resource for the HTML cache
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* Version ussing nocache inserts
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*
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* @package Smarty
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* @subpackage Cacher
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* @author Uwe Tews
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*/
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/**
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* This class does contain all necessary methods for the HTML cache on file system
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*/
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class Smarty_Internal_CacheResource_File {
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function __construct($smarty)
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{
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$this->smarty = $smarty;
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}
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/**
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* Returns the filepath of the cached template output
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*
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* @param object $_template current template
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* @return string the cache filepath
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*/
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public function getCachedFilepath($_template)
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{
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$_source_file_path = str_replace(':', '.', $_template->getTemplateFilepath());
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$_cache_id = isset($_template->cache_id) ? preg_replace('![^\w\|]+!', '_', $_template->cache_id) : null;
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$_compile_id = isset($_template->compile_id) ? preg_replace('![^\w\|]+!', '_', $_template->compile_id) : null;
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$_filepath = $_template->templateUid;
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// if use_sub_dirs, break file into directories
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if ($this->smarty->use_sub_dirs) {
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$_filepath = substr($_filepath, 0, 2) . DS
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. substr($_filepath, 2, 2) . DS
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. substr($_filepath, 4, 2) . DS
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. $_filepath;
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}
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$_compile_dir_sep = $this->smarty->use_sub_dirs ? DS : '^';
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if (isset($_cache_id)) {
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$_cache_id = str_replace('|', $_compile_dir_sep, $_cache_id) . $_compile_dir_sep;
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} else {
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$_cache_id = '';
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}
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if (isset($_compile_id)) {
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$_compile_id = $_compile_id . $_compile_dir_sep;
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} else {
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$_compile_id = '';
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}
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$_cache_dir = $this->smarty->cache_dir;
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if (strpos('/\\', substr($_cache_dir, -1)) === false) {
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$_cache_dir .= DS;
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}
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return $_cache_dir . $_cache_id . $_compile_id . $_filepath . '.' . basename($_source_file_path) . '.php';
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}
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/**
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* Returns the timpestamp of the cached template output
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*
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* @param object $_template current template
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* @return integer |booelan the template timestamp or false if the file does not exist
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*/
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public function getCachedTimestamp($_template)
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{
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// return @filemtime ($_template->getCachedFilepath());
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return ($_template->getCachedFilepath() && file_exists($_template->getCachedFilepath())) ? filemtime($_template->getCachedFilepath()) : false ;
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}
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/**
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* Returns the cached template output
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*
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* @param object $_template current template
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* @return string |booelan the template content or false if the file does not exist
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*/
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public function getCachedContents($_template, $no_render = false)
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{
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if (!$no_render) {
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ob_start();
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}
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$_smarty_tpl = $_template;
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include $_template->getCachedFilepath();
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if ($no_render) {
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return null;
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} else {
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return ob_get_clean();
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}
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}
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/**
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* Writes the rendered template output to cache file
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*
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* @param object $_template current template
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* @return boolean status
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*/
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public function writeCachedContent($_template, $content)
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{
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if (!$_template->resource_object->isEvaluated) {
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if (Smarty_Internal_Write_File::writeFile($_template->getCachedFilepath(), $content, $this->smarty) === true) {
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$_template->cached_timestamp = filemtime($_template->getCachedFilepath());
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return true;
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}
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}
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return false;
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}
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/**
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* Empty cache folder
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*
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* @param integer $exp_time expiration time
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* @return integer number of cache files deleted
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*/
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public function clearAll($exp_time = null)
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{
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return $this->clear(null, null, null, $exp_time);
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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 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 $exp_time expiration time
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* @return integer number of cache files deleted
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*/
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public function clear($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 = $this->smarty->use_sub_dirs ? '/' : '^';
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$_compile_id_offset = $this->smarty->use_sub_dirs ? 3 : 0;
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$_dir = rtrim($this->smarty->cache_dir, '/\\') . DS;
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$_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($_cache_id_parts);
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if ($this->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 = $this->smarty->caching;
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$this->smarty->caching = true;
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$tpl = new $this->smarty->template_class($resource_name, $this->smarty);
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// remove from template cache
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unset($this->smarty->template_objects[crc32($tpl->template_resource . $tpl->cache_id . $tpl->compile_id)]);
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$this->smarty->caching = $_save_stat;
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if ($tpl->isExisting()) {
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$_resourcename_parts = basename(str_replace('^', '/', $tpl->getCachedFilepath()));
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} else {
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return 0;
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}
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}
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$_count = 0;
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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 $_file) {
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if (strpos($_file, '.svn') !== false) continue;
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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]) || $_parts[$_parts_count-2 - $_compile_id_offset] != $_compile_id)) {
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continue;
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}
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// check cache id
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if (isset($_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 : $_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]) continue 2;
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}
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}
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// expired ?
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if (isset($exp_time) && time() - @filemtime($_file) < $exp_time) {
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continue;
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}
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$_count += @unlink((string) $_file) ? 1 : 0;
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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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}
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?>
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