First commit

source/class/cache/cache_file.php

@@ -0,0 +1,85 @@
+<?php
+
+/**
+ *      [Discuz!] (C)2001-2099 Comsenz Inc.
+ *      This is NOT a freeware, use is subject to license terms
+ *
+ *      $Id: cache_file.php 6757 2010-03-25 09:01:29Z cnteacher $
+ */
+
+if(!defined('IN_DISCUZ')) {
+	exit('Access Denied');
+}
+
+class ultrax_cache {
+
+	function __construct($conf) {
+		$this->conf = $conf;
+	}
+
+	function get_cache($key) {
+		if($this->cache_exists($key)) {
+			$data = $this->_get_cache($key);
+			return $data['data'];
+		}
+		return false;
+	}
+
+	function set_cache($key, $value, $life) {
+		global $_G;
+		$data = array($key => array('data' => $value, 'life' => $life));
+		require_once libfile('function/cache');
+		$cache_file = $this->get_cache_file_path($key);
+		dmkdir(dirname($cache_file));
+		$cachedata = "\$data = ".arrayeval($data).";\n";
+		$cachedata_save = "<?php\n//Discuz! cache file, DO NOT modify me!".
+		"\n//Created: ".date("M j, Y, G:i").
+		"\n//Identify: ".md5($cache_file.$cachedata.$_G['config']['security']['authkey'])."\n\nif(!defined('IN_DISCUZ')) {\n\texit('Access Denied');\n}\n\n$cachedata?>";
+		$fp = fopen($cache_file, 'cb');
+		if(!($fp && flock($fp, LOCK_EX) && ftruncate($fp, 0) && fwrite($fp, $cachedata_save) && fflush($fp) && flock($fp, LOCK_UN) && fclose($fp))) {
+			flock($fp, LOCK_UN);
+			fclose($fp);
+			unlink($cache_file);
+			exit('Can not write to cache files, please check directory ./data/ and ./data/ultraxcache/ .');
+		}
+		return true;
+	}
+
+	function del_cache($key) {
+		$cache_file = $this->get_cache_file_path($key);
+		if(file_exists($cache_file)) {
+			return @unlink($cache_file);
+		}
+		return true;
+	}
+
+	function _get_cache($key) {
+		static $data = array();
+		if(!isset($data[$key])) {
+			include $this->get_cache_file_path($key);
+		}
+		return $data[$key];
+	}
+
+	function cache_exists($key) {
+		$cache_file = $this->get_cache_file_path($key);
+		if(!file_exists($cache_file)) {
+			return false;
+		}
+		$data = $this->_get_cache($key);
+		if($data['life'] && (filemtime($cache_file) < time() - $data['life'])) {
+			return false;
+		}
+		return true;
+	}
+
+	function get_cache_file_path($key) {
+		static $cache_path = array();
+		if(!isset($cache_path[$key])) {
+			$dir = hexdec($key[0].$key[1].$key[2]) % 1000;
+			$cache_path[$key] = $this->conf['path'].'/'.$dir.'/'.$key.'.php';
+		}
+		return $cache_path[$key];
+	}
+
+}

source/class/cache/cache_sql.php

@@ -0,0 +1,47 @@
+<?php
+
+/**
+ *      [Discuz!] (C)2001-2099 Comsenz Inc.
+ *      This is NOT a freeware, use is subject to license terms
+ *
+ *      $Id: cache_sql.php 24721 2011-10-09 10:30:22Z zhengqingpeng $
+ */
+
+if(!defined('IN_DISCUZ')) {
+	exit('Access Denied');
+}
+
+class ultrax_cache {
+
+	function __construct($conf) {
+		$this->conf = $conf;
+	}
+
+	function get_cache($key) {
+		static $data = array();
+		if(!isset($data[$key])) {
+			$cache = C::t('common_cache')->fetch($key);
+			if(!$cache) {
+				return false;
+			}
+			$data[$key] = dunserialize($cache['cachevalue']);
+			if($cache['life'] && ($cache['dateline'] < time() - $data[$key]['life'])) {
+				return false;
+			}
+		}
+		return $data[$key]['data'];
+	}
+
+	function set_cache($key, $value, $life) {
+		$data = array(
+			'cachekey' => $key,
+			'cachevalue' => serialize(array('data' => $value, 'life' => $life)),
+			'dateline' => time(),
+			);
+		return C::t('common_cache')->insert($data);
+	}
+
+	function del_cache($key) {
+		return C::t('common_cache')->delete($key);
+	}
+}