cachedir = AUTOPTIMIZE_CACHE_DIR; $this->delayed = AUTOPTIMIZE_CACHE_DELAY; $this->nogzip = AUTOPTIMIZE_CACHE_NOGZIP; if($this->nogzip == false) $this->filename = 'autoptimize_'.$md5.'.php'; else $this->filename = 'autoptimize_'.$md5.'.'.$ext; } public function check() { if(!file_exists($this->cachedir.$this->filename)) { //No cached file, sorry return false; } //Cache exists! return true; } public function retrieve() { if($this->check()) { if($this->nogzip == false) return file_get_contents($this->cachedir.$this->filename.'.none'); else return file_get_contents($this->cachedir.$this->filename); } return false; } public function cache($code,$mime) { if($this->nogzip == false) { $file = ($this->delayed ? 'delayed.php' : 'default.php'); $phpcode = file_get_contents(WP_PLUGIN_DIR.'/autoptimize/config/'.$file); $phpcode = str_replace(array('%%CONTENT%%','exit;'),array($mime,''),$phpcode); file_put_contents($this->cachedir.$this->filename,$phpcode); file_put_contents($this->cachedir.$this->filename.'.none',$code); if(!$this->delayed) { //Compress now! file_put_contents($this->cachedir.$this->filename.'.deflate',gzencode($code,9,FORCE_DEFLATE)); file_put_contents($this->cachedir.$this->filename.'.gzip',gzencode($code,9,FORCE_GZIP)); } }else{ //Write code to cache without doing anything else file_put_contents($this->cachedir.$this->filename,$code); } } public function getname() { return $this->filename; } static function clearall() { //Cache not available :( if(!autoptimizeCache::cacheavail()) return false; //Clean the cachedir $scan = scandir(AUTOPTIMIZE_CACHE_DIR); foreach($scan as $file) { if(!in_array($file,array('.','..')) && strpos($file,'autoptimize') !== false && is_file(AUTOPTIMIZE_CACHE_DIR.$file)) { @unlink(AUTOPTIMIZE_CACHE_DIR.$file); } } //Do we need to clean WP Super Cache's cache files? if(function_exists('wp_cache_clear_cache')) { //Newer WP-Super-Cache //See http://ocaoimh.ie/wp-super-cache-developers/ wp_cache_clear_cache(); }elseif(file_exists(WP_CONTENT_DIR.'/wp-cache-config.php') && function_exists('prune_super_cache')){ //Old WP-Super-Cache global $cache_path; prune_super_cache($cache_path.'supercache/',true); prune_super_cache($cache_path,true); } return true; } static function stats() { //Cache not available :( if(!autoptimizeCache::cacheavail()) return 0; //Count cached info $count = 0; $scan = scandir(AUTOPTIMIZE_CACHE_DIR); foreach($scan as $file) { if(!in_array($file,array('.','..')) && strpos($file,'autoptimize') !== false) { if(is_file(AUTOPTIMIZE_CACHE_DIR.$file)) { if(AUTOPTIMIZE_CACHE_NOGZIP && (strpos($file,'.js') !== false || strpos($file,'.css') !== false)) { $count++; }elseif(!AUTOPTIMIZE_CACHE_NOGZIP && strpos($file,'.none') !== false){ $count++; }/*else{ //Tricky one... it was a dir or a gzip/deflate file }*/ } } } //Tell the number of instances return $count; } static function cacheavail() { if(!defined('AUTOPTIMIZE_CACHE_DIR')) { //We didn't set a cache return false; } //Check for existence if(!file_exists(AUTOPTIMIZE_CACHE_DIR)) { @mkdir(AUTOPTIMIZE_CACHE_DIR,0775,true); if(!file_exists(AUTOPTIMIZE_CACHE_DIR)) { //Where should we cache? return false; } } if(!is_writable(AUTOPTIMIZE_CACHE_DIR)) { //How are we supposed to write? return false; } /** write index.html here to avoid prying eyes */ $indexFile=AUTOPTIMIZE_CACHE_DIR.'/index.html'; if(!is_file($indexFile)) { @file_put_contents($indexFile,'Generated by Autoptimize'); } //All OK return true; } }