| 1 |
<?php |
| 2 |
if (!defined('ABSPATH')) die('No direct access allowed'); |
| 3 |
|
| 4 |
if (!defined('WP_OPTIMIZE_MINIFY_DIR')) { |
| 5 |
die('No direct access.'); |
| 6 |
} |
| 7 |
|
| 8 |
if (!function_exists('wpo_delete_files')) { |
| 9 |
include WPO_PLUGIN_MAIN_PATH.'cache/file-based-page-cache-functions.php'; |
| 10 |
} |
| 11 |
|
| 12 |
class WP_Optimize_Minify_Cache_Functions { |
| 13 |
|
| 14 |
/** |
| 15 |
* Fix the permission bits on generated files |
| 16 |
* |
| 17 |
* @param String $file - full path to a file |
| 18 |
*/ |
| 19 |
public static function fix_permission_bits($file) { |
| 20 |
if (function_exists('stat')) { |
| 21 |
if ($stat = stat(dirname($file))) { |
| 22 |
$perms = $stat['mode'] & 0007777; |
| 23 |
chmod($file, $perms); |
| 24 |
clearstatcache(); |
| 25 |
return true; |
| 26 |
} |
| 27 |
} |
| 28 |
|
| 29 |
// Get permissions from parent directory |
| 30 |
$perms = 0777; |
| 31 |
if (function_exists('stat')) { |
| 32 |
if ($stat = stat(dirname($file))) { |
| 33 |
$perms = $stat['mode'] & 0007777; |
| 34 |
} |
| 35 |
} |
| 36 |
|
| 37 |
if (file_exists($file)) { |
| 38 |
if (($perms & ~umask() != $perms)) { |
| 39 |
$folder_parts = explode('/', substr($file, strlen(dirname($file)) + 1)); |
| 40 |
for ($i = 1, $c = count($folder_parts); $i <= $c; $i++) { |
| 41 |
chmod(dirname($file) . '/' . implode('/', array_slice($folder_parts, 0, $i)), $perms); |
| 42 |
} |
| 43 |
} |
| 44 |
} |
| 45 |
return true; |
| 46 |
} |
| 47 |
|
| 48 |
/** |
| 49 |
* Get cache directories and urls |
| 50 |
* |
| 51 |
* @return Array |
| 52 |
*/ |
| 53 |
public static function cache_path() { |
| 54 |
// get latest time stamp |
| 55 |
$cache_time = wp_optimize_minify_config()->get('last-cache-update'); |
| 56 |
|
| 57 |
$cache_dir_url = WPO_CACHE_MIN_FILES_URL . "/$cache_time/assets"; |
| 58 |
$tmp_dir = WPO_CACHE_MIN_FILES_DIR . "/tmp"; |
| 59 |
$header_dir = WPO_CACHE_MIN_FILES_DIR . "/$cache_time/header"; |
| 60 |
$cache_dir = WPO_CACHE_MIN_FILES_DIR . "/$cache_time/assets"; |
| 61 |
|
| 62 |
// Create directories |
| 63 |
$dirs = array($cache_dir, $tmp_dir, $header_dir); |
| 64 |
foreach ($dirs as $target) { |
| 65 |
$enabled = wp_optimize_minify_config()->get('enabled'); |
| 66 |
if (false === $enabled) break; |
| 67 |
|
| 68 |
if (!is_dir($target) && !wp_mkdir_p($target)) { |
| 69 |
error_log('WP_Optimize_Minify_Cache_Functions::cache_path(): The folder "'.$target.'" could not be created.'); |
| 70 |
} |
| 71 |
} |
| 72 |
return array( |
| 73 |
'tmpdir' => $tmp_dir, |
| 74 |
'cachedir' => $cache_dir, |
| 75 |
'cachedirurl' => $cache_dir_url, |
| 76 |
'headerdir' => $header_dir |
| 77 |
); |
| 78 |
} |
| 79 |
|
| 80 |
/** |
| 81 |
* Increment file names |
| 82 |
*/ |
| 83 |
public static function cache_increment() { |
| 84 |
$stamp = time(); |
| 85 |
wp_optimize_minify_config()->update(array( |
| 86 |
'last-cache-update' => $stamp |
| 87 |
)); |
| 88 |
return $stamp; |
| 89 |
} |
| 90 |
|
| 91 |
/** |
| 92 |
* Reset the cache (Increment + purge temp files) |
| 93 |
*/ |
| 94 |
public static function reset() { |
| 95 |
self::cache_increment(); |
| 96 |
self::purge_temp_files(); |
| 97 |
} |
| 98 |
|
| 99 |
/** |
| 100 |
* Will delete temporary intermediate stuff but leave final css/js alone for compatibility |
| 101 |
* |
| 102 |
* @return Array |
| 103 |
*/ |
| 104 |
public static function purge_temp_files() { |
| 105 |
// get cache directories and urls |
| 106 |
$cache_path = self::cache_path(); |
| 107 |
$tmp_dir = $cache_path['tmpdir']; |
| 108 |
$header_dir = $cache_path['headerdir']; |
| 109 |
|
| 110 |
// delete temporary directories only |
| 111 |
if (is_dir($tmp_dir)) { |
| 112 |
wpo_delete_files($tmp_dir, true); |
| 113 |
} |
| 114 |
if (is_dir($header_dir)) { |
| 115 |
wpo_delete_files($header_dir, true); |
| 116 |
} |
| 117 |
|
| 118 |
/** |
| 119 |
* Action triggered after purging temporary files |
| 120 |
*/ |
| 121 |
do_action('wpo_min_after_purge_temp_files'); |
| 122 |
return array( |
| 123 |
'tmpdir' => $tmp_dir, |
| 124 |
'headerdir' => $header_dir, |
| 125 |
); |
| 126 |
} |
| 127 |
|
| 128 |
/** |
| 129 |
* Purge supported hosting and plugins |
| 130 |
* |
| 131 |
* @return string |
| 132 |
*/ |
| 133 |
public static function purge_others() { |
| 134 |
/** |
| 135 |
* Action triggered before purging other plugins cache |
| 136 |
*/ |
| 137 |
do_action('wpo_min_before_purge_others'); |
| 138 |
|
| 139 |
// WordPress default cache |
| 140 |
if (function_exists('wp_cache_flush')) { |
| 141 |
wp_cache_flush(); |
| 142 |
} |
| 143 |
|
| 144 |
// Purge WP-Optimize |
| 145 |
WP_Optimize()->get_page_cache()->purge(); |
| 146 |
|
| 147 |
// When plugins have a simple method, add them to the array ('Plugin Name' => 'method_name') |
| 148 |
$others = array( |
| 149 |
'WP Super Cache' => 'wp_cache_clear_cache', |
| 150 |
'W3 Total Cache' => 'w3tc_pgcache_flush', |
| 151 |
'WP Fastest Cache' => 'wpfc_clear_all_cache', |
| 152 |
'WP Rocket' => 'rocket_clean_domain', |
| 153 |
'Cachify' => 'cachify_flush_cache', |
| 154 |
'Comet Cache' => array('comet_cache', 'clear'), |
| 155 |
'SG Optimizer' => 'sg_cachepress_purge_cache', |
| 156 |
'Pantheon' => 'pantheon_wp_clear_edge_all', |
| 157 |
'Zen Cache' => array('zencache', 'clear'), |
| 158 |
'Breeze' => array('Breeze_PurgeCache', 'breeze_cache_flush'), |
| 159 |
'Swift Performance' => array('Swift_Performance_Cache', 'clear_all_cache'), |
| 160 |
); |
| 161 |
|
| 162 |
foreach ($others as $plugin => $method) { |
| 163 |
if (is_callable($method)) { |
| 164 |
call_user_func($method); |
| 165 |
return sprintf(__('All caches from %s have also been purged.', 'wp-optimize'), '<strong>'.$plugin.'</strong>'); |
| 166 |
} |
| 167 |
} |
| 168 |
|
| 169 |
// Purge LiteSpeed Cache |
| 170 |
if (is_callable(array('LiteSpeed_Cache_Tags', 'add_purge_tag'))) { |
| 171 |
LiteSpeed_Cache_Tags::add_purge_tag('*'); |
| 172 |
return sprintf(__('All caches from %s have also been purged.', 'wp-optimize'), '<strong>LiteSpeed Cache</strong>'); |
| 173 |
} |
| 174 |
|
| 175 |
// Purge Hyper Cache |
| 176 |
if (class_exists('HyperCache')) { |
| 177 |
do_action('autoptimize_action_cachepurged'); |
| 178 |
return sprintf(__('All caches from %s have also been purged.', 'wp-optimize'), '<strong>Hyper Cache</strong>'); |
| 179 |
} |
| 180 |
|
| 181 |
// Purge Godaddy Managed WordPress Hosting (Varnish + APC) |
| 182 |
if (class_exists('WPaaS\Plugin')) { |
| 183 |
self::godaddy_request('BAN'); |
| 184 |
return sprintf(__('A cache purge request has been sent to %s. Please note that it may not work every time, due to cache rate limiting by your host.', 'wp-optimize'), '<strong>Go Daddy Varnish</strong>'); |
| 185 |
} |
| 186 |
|
| 187 |
// purge cache enabler |
| 188 |
if (has_action('ce_clear_cache')) { |
| 189 |
do_action('ce_clear_cache'); |
| 190 |
return sprintf(__('All caches from %s have also been purged.', 'wp-optimize'), '<strong>Cache Enabler</strong>'); |
| 191 |
} |
| 192 |
|
| 193 |
// Purge WP Engine |
| 194 |
if (class_exists("WpeCommon")) { |
| 195 |
if (method_exists('WpeCommon', 'purge_memcached')) { |
| 196 |
WpeCommon::purge_memcached(); |
| 197 |
} |
| 198 |
if (method_exists('WpeCommon', 'clear_maxcdn_cache')) { |
| 199 |
WpeCommon::clear_maxcdn_cache(); |
| 200 |
} |
| 201 |
if (method_exists('WpeCommon', 'purge_varnish_cache')) { |
| 202 |
WpeCommon::purge_varnish_cache(); |
| 203 |
} |
| 204 |
|
| 205 |
if (method_exists('WpeCommon', 'purge_memcached') || method_exists('WpeCommon', 'clear_maxcdn_cache') || method_exists('WpeCommon', 'purge_varnish_cache')) { |
| 206 |
return sprintf(__('A cache purge request has been sent to %s. Please note that it may not work every time, due to cache rate limiting by your host.', 'wp-optimize'), '<strong>WP Engine</strong>'); |
| 207 |
} |
| 208 |
} |
| 209 |
|
| 210 |
// Purge Kinsta |
| 211 |
global $kinsta_cache; |
| 212 |
if (isset($kinsta_cache) && class_exists('\\Kinsta\\CDN_Enabler')) { |
| 213 |
if (!empty($kinsta_cache->kinsta_cache_purge) && is_callable(array($kinsta_cache->kinsta_cache_purge, 'purge_complete_caches'))) { |
| 214 |
$kinsta_cache->kinsta_cache_purge->purge_complete_caches(); |
| 215 |
return sprintf(__('A cache purge request was also sent to %s', 'wp-optimize'), '<strong>Kinsta</strong>'); |
| 216 |
} |
| 217 |
} |
| 218 |
|
| 219 |
// Purge Pagely |
| 220 |
if (class_exists('PagelyCachePurge')) { |
| 221 |
$purge_pagely = new PagelyCachePurge(); |
| 222 |
if (is_callable(array($purge_pagely, 'purgeAll'))) { |
| 223 |
$purge_pagely->purgeAll(); |
| 224 |
return sprintf(__('A cache purge request was also sent to %s', 'wp-optimize'), '<strong>Pagely</strong>'); |
| 225 |
} |
| 226 |
} |
| 227 |
|
| 228 |
// Purge Pressidum |
| 229 |
if (defined('WP_NINUKIS_WP_NAME') && class_exists('Ninukis_Plugin') && is_callable(array('Ninukis_Plugin', 'get_instance'))) { |
| 230 |
$purge_pressidum = Ninukis_Plugin::get_instance(); |
| 231 |
if (is_callable(array($purge_pressidum, 'purgeAllCaches'))) { |
| 232 |
$purge_pressidum->purgeAllCaches(); |
| 233 |
return sprintf(__('A cache purge request was also sent to %s', 'wp-optimize'), '<strong>Pressidium</strong>'); |
| 234 |
} |
| 235 |
} |
| 236 |
|
| 237 |
// Purge Savvii |
| 238 |
if (defined('\Savvii\CacheFlusherPlugin::NAME_DOMAINFLUSH_NOW')) { |
| 239 |
$purge_savvii = new \Savvii\CacheFlusherPlugin(); // phpcs:ignore PHPCompatibility.LanguageConstructs.NewLanguageConstructs.t_ns_separatorFound |
| 240 |
if (is_callable(array($purge_savvii, 'domainflush'))) { |
| 241 |
$purge_savvii->domainflush(); |
| 242 |
return sprintf(__('A cache purge request was also sent to %s', 'wp-optimize'), '<strong>Savvii</strong>'); |
| 243 |
} |
| 244 |
} |
| 245 |
|
| 246 |
/** |
| 247 |
* Action triggered when purging other plugins cache, and nothing was triggered |
| 248 |
*/ |
| 249 |
do_action('wpo_min_after_purge_others'); |
| 250 |
|
| 251 |
} |
| 252 |
|
| 253 |
/** |
| 254 |
* Purge all public files on uninstallation |
| 255 |
* This will break cached pages that ref minified JS/CSS |
| 256 |
* |
| 257 |
* @return Boolean |
| 258 |
*/ |
| 259 |
public static function purge() { |
| 260 |
$log = ''; |
| 261 |
if (is_dir(WPO_CACHE_MIN_FILES_DIR)) { |
| 262 |
if (wpo_delete_files(WPO_CACHE_MIN_FILES_DIR, true)) { |
| 263 |
$log = "[Minify] files and folders are deleted recursively"; |
| 264 |
} else { |
| 265 |
$log = "[Minify] recursive files and folders deletion unsuccessful"; |
| 266 |
} |
| 267 |
if (wp_optimize_minify_config()->get('debug')) { |
| 268 |
error_log($log); |
| 269 |
} |
| 270 |
} |
| 271 |
return true; |
| 272 |
} |
| 273 |
|
| 274 |
/** |
| 275 |
* Purge cache files older than 30 days |
| 276 |
* |
| 277 |
* @return array |
| 278 |
*/ |
| 279 |
public static function purge_old() { |
| 280 |
if (!class_exists('WP_Optimize_Minify_Config')) { |
| 281 |
include_once WPO_PLUGIN_MAIN_PATH . '/minify/class-wp-optimize-minify-config.php'; |
| 282 |
} |
| 283 |
$cache_time = wp_optimize_minify_config()->get('last-cache-update'); |
| 284 |
$cache_lifespan = wp_optimize_minify_config()->get('cache_lifespan'); |
| 285 |
|
| 286 |
/** |
| 287 |
* Minify cache lifespan |
| 288 |
* |
| 289 |
* @param int The minify cache expiry timestamp |
| 290 |
*/ |
| 291 |
$expires = apply_filters('wp_optimize_minify_cache_expiry_time', time() - 86400 * $cache_lifespan); |
| 292 |
$log = array(); |
| 293 |
|
| 294 |
// get all directories that are a direct child of current directory |
| 295 |
if (is_dir(WPO_CACHE_MIN_FILES_DIR) && is_writable(dirname(WPO_CACHE_MIN_FILES_DIR))) { |
| 296 |
if ($handle = opendir(WPO_CACHE_MIN_FILES_DIR)) { |
| 297 |
while (false !== ($d = readdir($handle))) { |
| 298 |
if (strcmp($d, '.')==0 || strcmp($d, '..')==0) { |
| 299 |
continue; |
| 300 |
} |
| 301 |
$log[] = "cache expiration time - $expires"; |
| 302 |
$log[] = "checking if cache has expired - $d"; |
| 303 |
if ($d != $cache_time && (is_numeric($d) && $d <= $expires)) { |
| 304 |
$dir = WPO_CACHE_MIN_FILES_DIR.'/'.$d; |
| 305 |
if (is_dir($dir)) { |
| 306 |
$log[] = "deleting cache in $dir"; |
| 307 |
if (wpo_delete_files($dir, true)) { |
| 308 |
$log[] = "files and folders are deleted recursively - $dir"; |
| 309 |
} else { |
| 310 |
$log[] = "recursive files and folders deletion unsuccessful - $dir"; |
| 311 |
} |
| 312 |
if (file_exists($dir)) { |
| 313 |
if (rmdir($dir)) { |
| 314 |
$log[] = "folder deleted successfully - $dir"; |
| 315 |
} else { |
| 316 |
$log[] = "folder deletion unsuccessful - $dir"; |
| 317 |
} |
| 318 |
} |
| 319 |
} |
| 320 |
} |
| 321 |
} |
| 322 |
closedir($handle); |
| 323 |
} |
| 324 |
} |
| 325 |
if (wp_optimize_minify_config()->get('debug')) { |
| 326 |
foreach ($log as $message) { |
| 327 |
error_log($message); |
| 328 |
} |
| 329 |
} |
| 330 |
|
| 331 |
return $log; |
| 332 |
} |
| 333 |
|
| 334 |
/** |
| 335 |
* Get transients from the disk |
| 336 |
* |
| 337 |
* @return String|Boolean |
| 338 |
*/ |
| 339 |
public static function get_transient($key) { |
| 340 |
$cache_path = self::cache_path(); |
| 341 |
$tmp_dir = $cache_path['tmpdir']; |
| 342 |
$f = $tmp_dir.'/'.$key.'.transient'; |
| 343 |
clearstatcache(); |
| 344 |
if (file_exists($f)) { |
| 345 |
return file_get_contents($f); |
| 346 |
} else { |
| 347 |
return false; |
| 348 |
} |
| 349 |
} |
| 350 |
|
| 351 |
/** |
| 352 |
* Set cache on disk |
| 353 |
* |
| 354 |
* @param String $key |
| 355 |
* @param Mixed $code |
| 356 |
* |
| 357 |
* @return Boolean |
| 358 |
*/ |
| 359 |
public static function set_transient($key, $code) { |
| 360 |
if (is_null($code) || empty($code)) { |
| 361 |
return false; |
| 362 |
} |
| 363 |
$cache_path = self::cache_path(); |
| 364 |
$tmp_dir = $cache_path['tmpdir']; |
| 365 |
$f = $tmp_dir.'/'.$key.'.transient'; |
| 366 |
file_put_contents($f, $code); |
| 367 |
self::fix_permission_bits($f); |
| 368 |
return true; |
| 369 |
} |
| 370 |
|
| 371 |
/** |
| 372 |
* Get the cache size and count |
| 373 |
* |
| 374 |
* @param string $folder |
| 375 |
* @return String |
| 376 |
*/ |
| 377 |
public static function get_cachestats($folder) { |
| 378 |
clearstatcache(); |
| 379 |
if (is_dir($folder)) { |
| 380 |
$dir = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($folder, FilesystemIterator::SKIP_DOTS)); |
| 381 |
$size = 0; |
| 382 |
$file_count = 0; |
| 383 |
foreach ($dir as $file) { |
| 384 |
$size += $file->getSize(); |
| 385 |
$file_count++; |
| 386 |
} |
| 387 |
return WP_Optimize()->format_size($size) . ' ('.$file_count.' files)'; |
| 388 |
} else { |
| 389 |
return sprintf(__('Error: %s is not a directory!', 'wp-optimize'), $folder); |
| 390 |
} |
| 391 |
} |
| 392 |
|
| 393 |
/** |
| 394 |
* Purge GoDaddy Managed WordPress Hosting (Varnish) |
| 395 |
* |
| 396 |
* Source: https://github.com/wp-media/wp-rocket/blob/master/inc/3rd-party/hosting/godaddy.php |
| 397 |
* |
| 398 |
* @param String $method |
| 399 |
* @param String|Null $url |
| 400 |
*/ |
| 401 |
public static function godaddy_request($method, $url = null) { |
| 402 |
$url = empty($url) ? home_url() : $url; |
| 403 |
$host = parse_url($url, PHP_URL_HOST); |
| 404 |
$url = set_url_scheme(str_replace($host, WPaas\Plugin::vip(), $url), 'http'); // phpcs:ignore PHPCompatibility.LanguageConstructs.NewLanguageConstructs.t_ns_separatorFound |
| 405 |
wp_cache_flush(); |
| 406 |
update_option('gd_system_last_cache_flush', time()); // purge apc |
| 407 |
wp_remote_request(esc_url_raw($url), array('method' => $method, 'blocking' => false, 'headers' => array('Host' => $host))); |
| 408 |
} |
| 409 |
|
| 410 |
/** |
| 411 |
* List all cache files |
| 412 |
* |
| 413 |
* @param integer $stamp A timestamp |
| 414 |
* @param boolean $use_cache If true, do not use transient value |
| 415 |
* @return array |
| 416 |
*/ |
| 417 |
public static function get_cached_files($stamp = 0, $use_cache = true) { |
| 418 |
if ($use_cache && $files = get_transient('wpo_minify_get_cached_files')) { |
| 419 |
return $files; |
| 420 |
} |
| 421 |
$cache_path = self::cache_path(); |
| 422 |
$cache_dir = $cache_path['cachedir']; |
| 423 |
$size = self::get_cachestats($cache_dir); |
| 424 |
$total_size = self::get_cachestats(WPO_CACHE_MIN_FILES_DIR); |
| 425 |
$o = wp_optimize_minify_config()->get(); |
| 426 |
$cache_time = (0 == $o['last-cache-update']) ? __('Never.', 'wp-optimize') : self::format_date_time($o['last-cache-update']); |
| 427 |
$return = array( |
| 428 |
'js' => array(), |
| 429 |
'css' => array(), |
| 430 |
'stamp' => $stamp, |
| 431 |
'cachesize' => esc_html($size), |
| 432 |
'total_cache_size' => esc_html($total_size), |
| 433 |
'cacheTime' => $cache_time, |
| 434 |
'cachePath' => $cache_path['cachedir'] |
| 435 |
); |
| 436 |
|
| 437 |
// Inspect directory with opendir, since glob might not be available in some systems |
| 438 |
clearstatcache(); |
| 439 |
if (is_dir($cache_dir.'/') && $handle = opendir($cache_dir.'/')) { |
| 440 |
while (false !== ($file = readdir($handle))) { |
| 441 |
$file = $cache_dir.'/'.$file; |
| 442 |
$ext = pathinfo($file, PATHINFO_EXTENSION); |
| 443 |
if (in_array($ext, array('js', 'css'))) { |
| 444 |
$log = false; |
| 445 |
if (file_exists($file.'.json')) { |
| 446 |
$log = json_decode(file_get_contents($file.'.json')); |
| 447 |
} |
| 448 |
$min_css = substr($file, 0, -4).'.min.css'; |
| 449 |
$minjs = substr($file, 0, -3).'.min.js'; |
| 450 |
$file_name = basename($file); |
| 451 |
$file_url = trailingslashit($cache_path['cachedirurl']).$file_name; |
| 452 |
if ('css' == $ext && file_exists($min_css)) { |
| 453 |
$file_name = basename($min_css); |
| 454 |
} |
| 455 |
if ('js' == $ext && file_exists($minjs)) { |
| 456 |
$file_name = basename($minjs); |
| 457 |
} |
| 458 |
$file_size = WP_Optimize()->format_size(filesize($file)); |
| 459 |
$uid = hash('adler32', $file_name); |
| 460 |
array_push($return[$ext], array('uid' => $uid, 'filename' => $file_name, 'file_url' => $file_url, 'log' => $log, 'fsize' => $file_size)); |
| 461 |
} |
| 462 |
} |
| 463 |
closedir($handle); |
| 464 |
} |
| 465 |
set_transient('wpo_minify_get_cached_files', $return, DAY_IN_SECONDS); |
| 466 |
return $return; |
| 467 |
} |
| 468 |
|
| 469 |
/** |
| 470 |
* Format a timestamp using WP's date_format and time_format |
| 471 |
* |
| 472 |
* @param integer $timestamp - The timestamp |
| 473 |
* @return string |
| 474 |
*/ |
| 475 |
public static function format_date_time($timestamp) { |
| 476 |
return WP_Optimize()->format_date_time($timestamp); |
| 477 |
} |
| 478 |
|
| 479 |
/** |
| 480 |
* Format the log created when merging assets. Called via array_map |
| 481 |
* |
| 482 |
* @param array $files The files array, containing the 'log' object or array. |
| 483 |
* @return array |
| 484 |
*/ |
| 485 |
public static function format_file_logs($files) { |
| 486 |
$files['log'] = WP_Optimize()->include_template( |
| 487 |
'minify/cached-file-log.php', |
| 488 |
true, |
| 489 |
array( |
| 490 |
'log' => $files['log'] |
| 491 |
) |
| 492 |
); |
| 493 |
return $files; |
| 494 |
} |
| 495 |
} |
| 496 |
|
