vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_cacheresourcefile.php

   1 <?php
   2
   3 /**
   4  * Smarty cache resource file clear method
   5  *
   6  * @package    Smarty
   7  * @subpackage PluginsInternal
   8  * @author     Uwe Tews
   9  */
  10
  11 /**
  12  * Smarty Internal Runtime Cache Resource File Class
  13  *
  14  * @package    Smarty
  15  * @subpackage PluginsInternal
  16  */
  17 class Smarty_Internal_Runtime_CacheResourceFile
  18 {
  19     /**
  20      * Empty cache for a specific template
  21      *
  22      * @param Smarty  $smarty
  23      * @param string  $resource_name template name
  24      * @param string  $cache_id      cache id
  25      * @param string  $compile_id    compile id
  26      * @param integer $exp_time      expiration time (number of seconds, not timestamp)
  27      *
  28      * @return integer number of cache files deleted
  29      */
  30     public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time)
  31     {
  32         $_cache_id = isset($cache_id) ? preg_replace('![^\w\|]+!', '_', $cache_id) : null;
  33         $_compile_id = isset($compile_id) ? preg_replace('![^\w]+!', '_', $compile_id) : null;
  34         $_dir_sep = $smarty->use_sub_dirs ? '/' : '^';
  35         $_compile_id_offset = $smarty->use_sub_dirs ? 3 : 0;
  36         $_dir = $smarty->getCacheDir();
  37         if ($_dir == '/') { //We should never want to delete this!
  38             return 0;
  39         }
  40         $_dir_length = strlen($_dir);
  41         if (isset($_cache_id)) {
  42             $_cache_id_parts = explode('|', $_cache_id);
  43             $_cache_id_parts_count = count($_cache_id_parts);
  44             if ($smarty->use_sub_dirs) {
  45                 foreach ($_cache_id_parts as $id_part) {
  46                     $_dir .= $id_part . $smarty->ds;
  47                 }
  48             }
  49         }
  50         if (isset($resource_name)) {
  51             $_save_stat = $smarty->caching;
  52             $smarty->caching = true;
  53             $tpl = new $smarty->template_class($resource_name, $smarty);
  54             $smarty->caching = $_save_stat;
  55
  56             // remove from template cache
  57             $tpl->source; // have the template registered before unset()
  58
  59             if ($tpl->source->exists) {
  60                 $_resourcename_parts = basename(str_replace('^', '/', $tpl->cached->filepath));
  61             } else {
  62                 return 0;
  63             }
  64         }
  65         $_count = 0;
  66         $_time = time();
  67         if (file_exists($_dir)) {
  68             $_cacheDirs = new RecursiveDirectoryIterator($_dir);
  69             $_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST);
  70             foreach ($_cache as $_file) {
  71                 if (substr(basename($_file->getPathname()), 0, 1) == '.') {
  72                     continue;
  73                 }
  74                 $_filepath = (string) $_file;
  75                 // directory ?
  76                 if ($_file->isDir()) {
  77                     if (!$_cache->isDot()) {
  78                         // delete folder if empty
  79                         @rmdir($_file->getPathname());
  80                     }
  81                 } else {
  82                     // delete only php files
  83                     if (substr($_filepath, -4) !== '.php') {
  84                         continue;
  85                     }
  86                     $_parts = explode($_dir_sep, str_replace('\\', '/', substr($_filepath, $_dir_length)));
  87                     $_parts_count = count($_parts);
  88                     // check name
  89                     if (isset($resource_name)) {
  90                         if ($_parts[ $_parts_count - 1 ] != $_resourcename_parts) {
  91                             continue;
  92                         }
  93                     }
  94                     // check compile id
  95                     if (isset($_compile_id) && (!isset($_parts[ $_parts_count - 2 - $_compile_id_offset ]) ||
  96                                                 $_parts[ $_parts_count - 2 - $_compile_id_offset ] != $_compile_id)
  97                     ) {
  98                         continue;
  99                     }
 100                     // check cache id
 101                     if (isset($_cache_id)) {
 102                         // count of cache id parts
 103                         $_parts_count = (isset($_compile_id)) ? $_parts_count - 2 - $_compile_id_offset :
 104                             $_parts_count - 1 - $_compile_id_offset;
 105                         if ($_parts_count < $_cache_id_parts_count) {
 106                             continue;
 107                         }
 108                         for ($i = 0; $i < $_cache_id_parts_count; $i ++) {
 109                             if ($_parts[ $i ] != $_cache_id_parts[ $i ]) {
 110                                 continue 2;
 111                             }
 112                         }
 113                     }
 114                     // expired ?
 115                     if (isset($exp_time)) {
 116                         if ($exp_time < 0) {
 117                             preg_match('#\'cache_lifetime\' =>\s*(\d*)#', file_get_contents($_file), $match);
 118                             if ($_time < (@filemtime($_file) + $match[ 1 ])) {
 119                                 continue;
 120                             }
 121                         } else {
 122                             if ($_time - @filemtime($_file) < $exp_time) {
 123                                 continue;
 124                             }
 125                         }
 126                     }
 127                     $_count += @unlink($_filepath) ? 1 : 0;
 128                     if (function_exists('opcache_invalidate') && strlen(ini_get("opcache.restrict_api")) < 1) {
 129                         opcache_invalidate($_filepath, true);
 130                     }
 131                 }
 132             }
 133         }
 134         return $_count;
 135     }
 136 }