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| Редакция | Автор | № строки | Строка |
|---|---|---|---|
| 304 | alex-w | 1 | <?php |
| 2 | |||
| 3 | /** |
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| 4 | * Smarty Internal Plugin CacheResource File |
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| 5 | * |
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| 6 | * Implements the file system as resource for the HTML cache |
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| 7 | * Version ussing nocache inserts |
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| 8 | * |
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| 9 | * @package Smarty |
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| 10 | * @subpackage Cacher |
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| 11 | * @author Uwe Tews |
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| 12 | */ |
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| 13 | |||
| 14 | /** |
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| 15 | * This class does contain all necessary methods for the HTML cache on file system |
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| 16 | */ |
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| 17 | class Smarty_Internal_CacheResource_File { |
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| 18 | function __construct($smarty) |
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| 19 | { |
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| 20 | $this->smarty = $smarty; |
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| 21 | } |
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| 22 | /** |
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| 23 | * Returns the filepath of the cached template output |
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| 24 | * |
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| 25 | * @param object $template current template |
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| 26 | * @return string the cache filepath |
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| 27 | */ |
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| 28 | public function getCachedFilepath($template) |
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| 29 | { |
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| 30 | return $this->buildCachedFilepath ($template->resource_name, $template->cache_id, $template->compile_id); |
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| 31 | } |
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| 32 | |||
| 33 | /** |
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| 34 | * Returns the timpestamp of the cached template output |
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| 35 | * |
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| 36 | * @param object $template current template |
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| 37 | * @return integer |booelan the template timestamp or false if the file does not exist |
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| 38 | */ |
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| 39 | public function getCachedTimestamp($template) |
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| 40 | { |
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| 41 | return ($template->getCachedFilepath() && file_exists($template->getCachedFilepath())) ? filemtime($template->getCachedFilepath()) : false ; |
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| 42 | } |
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| 43 | |||
| 44 | /** |
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| 45 | * Returns the cached template output |
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| 46 | * |
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| 47 | * @param object $template current template |
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| 48 | * @return string |booelan the template content or false if the file does not exist |
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| 49 | */ |
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| 50 | public function getCachedContents($template) |
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| 51 | { |
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| 52 | ob_start(); |
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| 53 | $_smarty_tpl = $template; |
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| 54 | include $template->getCachedFilepath(); |
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| 55 | return ob_get_clean(); |
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| 56 | } |
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| 57 | |||
| 58 | /** |
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| 59 | * Writes the rendered template output to cache file |
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| 60 | * |
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| 61 | * @param object $template current template |
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| 62 | * @return boolean status |
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| 63 | */ |
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| 64 | public function writeCachedContent($template, $content) |
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| 65 | { |
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| 66 | if (!$template->isEvaluated()) { |
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| 67 | if (!is_object($this->smarty->write_file_object)) { |
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| 68 | require_once(SMARTY_SYSPLUGINS_DIR . 'internal.write_file.php'); |
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| 69 | // $this->smarty->loadPlugin("Smarty_Internal_Write_File"); |
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| 70 | $this->smarty->write_file_object = new Smarty_Internal_Write_File; |
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| 71 | } |
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| 72 | return $this->smarty->write_file_object->writeFile($template->getCachedFilepath(), $content); |
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| 73 | } else { |
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| 74 | return false; |
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| 75 | } |
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| 76 | } |
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| 77 | |||
| 78 | /** |
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| 79 | * Empty cache folder |
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| 80 | * |
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| 81 | * @param integer $exp_time expiration time |
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| 82 | * @return integer number of cache files deleted |
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| 83 | */ |
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| 84 | public function clearAll($exp_time = null) |
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| 85 | { |
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| 86 | return $this->clear(null, null, null, $exp_time); |
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| 87 | } |
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| 88 | /** |
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| 89 | * Empty cache for a specific template |
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| 90 | * |
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| 91 | * @param string $resource_name template name |
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| 92 | * @param string $cache_id cache id |
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| 93 | * @param string $compile_id compile id |
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| 94 | * @param integer $exp_time expiration time |
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| 95 | * @return integer number of cache files deleted |
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| 96 | */ |
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| 97 | public function clear($resource_name, $cache_id, $compile_id, $exp_time) |
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| 98 | { |
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| 99 | $_dir_sep = $this->smarty->use_sub_dirs ? DS : '^'; |
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| 100 | if (isset($resource_name)) { |
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| 101 | $_resource_part = (string)abs(crc32($resource_name)) . '.' . $resource_name . $this->smarty->php_ext; |
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| 102 | } else { |
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| 103 | $_resource_part = null; |
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| 104 | } |
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| 105 | $_dir = $this->smarty->cache_dir; |
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| 106 | if (strpos('/\\', substr($_dir, -1)) === false) { |
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| 107 | $_dir .= DS; |
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| 108 | } |
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| 109 | if ($this->smarty->use_sub_dirs && isset($cache_id)) { |
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| 110 | $_dir .= str_replace('|', $_dir_sep, $cache_id) . $_dir_sep; |
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| 111 | } |
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| 112 | $_compile_pos = $this->smarty->use_sub_dirs ? 5 : 2; |
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| 113 | $_count = 0; |
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| 114 | $_cacheDirs = new RecursiveDirectoryIterator($_dir); |
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| 115 | $_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST); |
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| 116 | foreach ($_cache as $_file) { |
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| 117 | if (strpos($_file, '.svn') !== false) continue; |
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| 118 | if ($_file->isDir()) { |
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| 119 | if (!$_cache->isDot()) { |
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| 120 | // delete folder if empty |
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| 121 | @rmdir($_file->getPathname()); |
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| 122 | } |
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| 123 | } else { |
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| 124 | $_parts = explode($_dir_sep, $_file); |
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| 125 | $_parts_count = count($_parts); |
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| 126 | $_parts_compile_pos = $_parts_count - $_compile_pos; |
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| 127 | if ($_parts_compile_pos < 0) { |
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| 128 | $_parts_compile_pos = 0; |
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| 129 | } |
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| 130 | if ((substr_compare((string)$_file, $_dir, 0, strlen($_dir)) == 0 && |
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| 131 | (!isset($resource_name) || $_parts[$_parts_count-1] == $_resource_part) && |
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| 132 | (!isset($compile_id) || $_parts[$_parts_compile_pos] == $compile_id)) || |
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| 133 | (isset($resource_name) && (string)$_file == $_dir . $_resource_part)) { |
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| 134 | if (isset($exp_time)) { |
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| 135 | if (time() - @filemtime($_file) >= $exp_time) { |
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| 136 | $_count += unlink((string) $_file) ? 1 : 0; |
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| 137 | } |
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| 138 | } else { |
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| 139 | $_count += unlink((string) $_file) ? 1 : 0; |
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| 140 | } |
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| 141 | } |
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| 142 | } |
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| 143 | } |
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| 144 | return $_count; |
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| 145 | } |
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| 146 | /** |
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| 147 | * Get system filepath to cached file |
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| 148 | * |
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| 149 | * @param string $resource_name template name |
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| 150 | * @param string $cache_id cache id |
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| 151 | * @param string $compile_id compile id |
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| 152 | * @return string filepath of cache file |
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| 153 | */ |
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| 154 | private function buildCachedFilepath ($resource_name, $cache_id, $compile_id) |
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| 155 | { |
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| 156 | $_files = explode('|', $resource_name); |
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| 157 | $_filepath = (string)abs(crc32($resource_name)); |
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| 158 | // if use_sub_dirs, break file into directories |
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| 159 | if ($this->smarty->use_sub_dirs) { |
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| 160 | $_filepath = substr($_filepath, 0, 2) . DS |
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| 161 | . substr($_filepath, 2, 2) . DS |
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| 162 | . substr($_filepath, 4, 2) . DS |
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| 163 | . $_filepath; |
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| 164 | } |
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| 165 | $_compile_dir_sep = $this->smarty->use_sub_dirs ? DS : '^'; |
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| 166 | if (isset($cache_id)) { |
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| 167 | $_cache_id = str_replace('|', $_compile_dir_sep, $cache_id) . $_compile_dir_sep; |
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| 168 | } else { |
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| 169 | $_cache_id = ''; |
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| 170 | } |
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| 171 | if (isset($compile_id)) { |
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| 172 | $_compile_id = $compile_id . $_compile_dir_sep; |
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| 173 | } else { |
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| 174 | $_compile_id = ''; |
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| 175 | } |
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| 176 | $_cache_dir = $this->smarty->cache_dir; |
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| 177 | if (strpos('/\\', substr($_cache_dir, -1)) === false) { |
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| 178 | $_cache_dir .= DS; |
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| 179 | } |
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| 180 | |||
| 181 | return $_cache_dir . $_cache_id . $_compile_id . $_filepath . '.' . basename($_files[count($_files)-1]) . $this->smarty->php_ext; |
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| 182 | } |
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| 183 | } |
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| 184 | |||
| 185 | ?> |