- // clear old cache
- Cache::clear();
-
- // clear item cache files if they are older than one day
- $cache = get_config('system','itemcache');
- if (($cache != '') and is_dir($cache)) {
- if ($dh = opendir($cache)) {
- while (($file = readdir($dh)) !== false) {
- $fullpath = $cache."/".$file;
- if ((filetype($fullpath) == "file") and filectime($fullpath) < (time() - 86400))
- unlink($fullpath);
- }
- closedir($dh);
+ $last = get_config('system','cache_last_cleared');
+
+ if($last) {
+ $next = $last + (3600); // Once per hour
+ $clear_cache = ($next <= time());
+ } else
+ $clear_cache = true;
+
+ if ($clear_cache) {
+ // clear old cache
+ Cache::clear();
+
+ // clear old item cache files
+ clear_cache();
+
+ // clear cache for photos
+ clear_cache($a->get_basepath(), $a->get_basepath()."/photo");
+
+ // clear smarty cache
+ clear_cache($a->get_basepath()."/view/smarty3/compiled", $a->get_basepath()."/view/smarty3/compiled");
+
+ // clear cache for image proxy
+ if (!get_config("system", "proxy_disabled")) {
+ clear_cache($a->get_basepath(), $a->get_basepath()."/proxy");
+
+ $cachetime = get_config('system','proxy_cache_time');
+ if (!$cachetime) $cachetime = PROXY_DEFAULT_TIME;
+
+ q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%" AND `created` < NOW() - INTERVAL %d SECOND', $cachetime);