346 lines
14 KiB
PHP
346 lines
14 KiB
PHP
<?php
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/**
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* MYSQL/memcache缓存插件<br />使用Mysql或memcache缓存页面减少数据库查询次数<br />由 <a href="https://weicn.org" target="_blank">WeiCN</a> 修改支持不缓存用户登录状态
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*
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* @package MostCache
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* @author skylzl,WeiCN
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* @version 1.1.1
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* @link http://www.phoneshuo.com
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*/
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class MostCache_Plugin implements Typecho_Plugin_Interface
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{
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private static $pluginName = 'MostCache';
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private static $tableName = 'most_cache';
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/**
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* 激活插件方法,如果激活失败,直接抛出异常
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*
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* @access public
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* @return void
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* @throws Typecho_Plugin_Exception
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*/
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public static function activate()
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{
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$meg = MostCache_Plugin::install();
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Typecho_Plugin::factory('index.php')->begin = array(self::$pluginName . '_Plugin', 'getCache');
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Typecho_Plugin::factory('index.php')->end = array(self::$pluginName . '_Plugin', 'setCache');
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Typecho_Plugin::factory('Widget_Feedback')->finishComment = array(self::$pluginName . '_Plugin', 'delCache');
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Typecho_Plugin::factory('Widget_Contents_Page_Edit')->write = array(self::$pluginName . '_Plugin', 'delCache');
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Typecho_Plugin::factory('Widget_Contents_Post_Edit')->write = array(self::$pluginName . '_Plugin', 'delCache');
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// Helper::addAction('mostcache', 'MostCache_Action');
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// Helper::addPanel(1, 'MostCache/panel.php', 'MostCache', 'MostCache缓存管理', 'administrator');
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return _t($meg.'。请进行<a href="options-plugin.php?config='.self::$pluginName.'">初始化设置</a>');
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}
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/**
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* 禁用插件方法,如果禁用失败,直接抛出异常
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*
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* @static
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* @access public
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* @return void
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* @throws Typecho_Plugin_Exception
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*/
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public static function deactivate(){
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$installDb = Typecho_Db::get();
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$installDb->query("DROP TABLE IF EXISTS " . $installDb->getPrefix() . self::$tableName);
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Helper::removeAction('mostcache');
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Helper::removePanel(1, 'MostCache/panel.php');
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}
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/**
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* 获取插件配置面板
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*
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* @access public
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* @param Typecho_Widget_Helper_Form $form 配置面板
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* @return void
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*/
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public static function config(Typecho_Widget_Helper_Form $form)
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{
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$element = new Typecho_Widget_Helper_Form_Element_Radio(
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'cacheMode', array('Mysql' => 'Mysql', 'memcache' => 'memcache'), 'Mysql',
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'缓存模式', '一般选择Mysql,两种模式使用不同的缓存储存介质,Mysql模式使用mysql数据储存,memcache模式使用memcache数据储存。');
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$form->addInput($element);
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$selectArr = array(
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'\/$|\/page\/\d'=>'首页','\/category'=>'分类','\/archive'=>'内容页','\/.*?\.(htm|html)$'=>'独立页面'
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);
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$element = new Typecho_Widget_Helper_Form_Element_Checkbox(
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'cacheType', $selectArr, array(),
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'缓存项目', 'Typecho 需要缓存的地方不多,一般为列表页、评论列表等列表性质的数据查询。缓存管理中可以对缓存规则进行自定义设置。');
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$form->addInput($element);
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$element = new Typecho_Widget_Helper_Form_Element_Text('cacheTime', NULL,1, _t('缓存时间'),'以天(24H)为时间单位,最小为1,最大不限制');
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$form->addInput($element);
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$element = new Typecho_Widget_Helper_Form_Element_Text('mem_server', NULL,'127.0.0.1', _t('memcache服务器地址'),'IP或者域名');
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$form->addInput($element);
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$element = new Typecho_Widget_Helper_Form_Element_Text('mem_prot', NULL,'11211', _t('memcache服务器端口'),'整数端口');
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$form->addInput($element);
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$element = new Typecho_Widget_Helper_Form_Element_Radio(
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'cacheCounter', array('0' => '否', '1' => '是'), 0,
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'访问统计', '如果缓存项目中选择了“内容页”且同时安装了willin kan的《Typecho 版 PostViews》,可以选“是”,开启缓存模式下的统计功能,否则会无法进行浏览量统计');
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$form->addInput($element);
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$element = new Typecho_Widget_Helper_Form_Element_Radio(
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'cacheTester', array('0' => '关闭', '1' => '开启'), 0,
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'缓存检测', '缓存插件有木有生效,相信您一定很想知道。开启本项将会在页面的最下方显示缓存信息。注意一般情况下应该关闭本项。仅作测试之用。');
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$form->addInput($element);
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$list = array('关闭', '清除所有数据');
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$element = new Typecho_Widget_Helper_Form_Element_Radio('is_clean', $list, 0, '清除所有数据');
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$form->addInput($element);
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}
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/**
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* 手动保存配置句柄
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* @param $config array 插件配置
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* @param $is_init bool 是否初始化
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*/
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public static function configHandle($config, $is_init)
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{
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if ($is_init != true) {
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try {
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if ($config['is_clean'] == '1'){
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self::resetCache();
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}
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} catch (Exception $e) {
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print $e->getMessage();
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die;
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}
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// 删除缓存仅生效一次
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$config['is_clean'] = '0';
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}
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Helper::configPlugin('MostCache', $config);
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}
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public static function getCache(){
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global $noCache,$user;
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Typecho_Widget::widget('Widget_User')->to($user);
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if($user->hasLogin()) return;
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$installDb = Typecho_Db::get();
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$config = Helper::options()->plugin(self::$pluginName);
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$request = new Typecho_Request;
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$requestHash = $request->getPathinfo();
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#尝试获取缓存
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if($config->cacheType){
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$s = implode('|',$config->cacheType);
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$preg = '/^('.$s.')/';
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if(preg_match($preg,$requestHash)){
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$cache = self::get($requestHash);
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if(!$cache){
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$noCache = true;
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return;
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}else{
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#增加访问统计,解决缓存造成文章无法统计
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if($config->cacheCounter and preg_match_all('/^\/archives\/(\d+)/',$requestHash,$cid_)){
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$cid = intval($cid_[1][0]);
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if($cid){
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$installDb->query("UPDATE ".$installDb->getPrefix()."contents SET views=views+1 WHERE cid='$cid'");
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}
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}
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#解决搜索失效问题,检测到POST就不输出缓存
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if(isset($_GET['s'])||isset($_POST['s']))return;
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echo $cache;
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if($config->cacheTester) echo '<small style="font-size:10px;color:#bbb;">读取缓存内容::'.round((strlen($cache)/1024),2).'K</small>';
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exit;
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}
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}
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}
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}
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public static function setCache(){
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global $noCache,$user;
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Typecho_Widget::widget('Widget_User')->to($user);
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if($user->hasLogin()) return;
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if(!$noCache) return;
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$request = new Typecho_Request;
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$requestHash = $request->getPathinfo();
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#尝试存入缓存
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$cache = ob_get_contents();
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self::set($requestHash,$cache);
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$config = Helper::options()->plugin(self::$pluginName);
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if($config->cacheTester) echo '<small style="font-size:10px;color:#bbb;">生成缓存内容:'.round((strlen($cache)/1024),2).'K 将会缓存:'.$config->cacheTime.'天 期间如有新文章发布、新评论产生将自动刷新缓存</small>';
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return;
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}
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/**
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* @清除指定标帜缓存
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*/
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public static function delCache($param,$param2){
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if(is_object($param) and intval($param->cid)>0){#评论更新
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self::del($param->request->getPathinfo());
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}elseif(is_array($param) and $param['text']){#发布文章更新
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$config = Helper::options()->plugin(self::$pluginName);
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$s = implode('|',$config->cacheType);
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$del = array($param2->pathinfo);
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if(strstr($s, 'page',TRUE)){
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array_push($del, '/','/page/*');
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}
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if(strstr($s, 'category',TRUE)){
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foreach ($param2->categories as $key => $value) {
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$pregc = '/category/'.$value['slug'].'/*';
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array_push($del, $pregc);
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unset($pregc);
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}
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}
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self::del($del);
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return $param;#返回发布内容
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}else{
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return;
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}
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}
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/**
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* 设置缓存
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*
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* @access public
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* @param string $anchor 锚点
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* @return void
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*/
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public static function set($key, $cache)
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{
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global $mc;
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$installDb = Typecho_Db::get();
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$config = Helper::options()->plugin(self::$pluginName);
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$expire = (intval($config->cacheTime)>1?intval($config->cacheTime):1)*24*60*60;
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if(is_array($cache)) $cache = json_encode($cache);
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if($config->cacheMode=='Mysql'){
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$table = $installDb->getPrefix().self::$tableName;
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$time = time();
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$cache = addslashes($cache);
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$sql = "REPLACE INTO $table (`hash`,`cache`,`dateline`,`expire`) VALUES ('$key','$cache','$time','$expire')";
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#
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$installDb->query($sql);
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}else{
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$mc = $mc?$mc:self::intSaeMc();
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$mc->set('mk-'.$key, $cache, 0,$expire);
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}
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}
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/**
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* 获取缓存
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*
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* @access public
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* @return void
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*/
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public static function get($key)
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{
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global $mc;
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$installDb = Typecho_Db::get();
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$config = Helper::options()->plugin(self::$pluginName);
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if($config->cacheMode=='Mysql'){
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$row = $installDb->fetchRow($installDb->select('cache','dateline','expire')->from('table.'.self::$tableName)->where('hash = ?', $key));
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if(!$row) return;
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if(time()-$row['dateline']>$row['expire']) self::del($key);
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$cache = $row['cache'];
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}else{
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$mc = $mc?$mc:self::intSaeMc();
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$cache = trim($mc->get('mk-'.$key));
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}
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$arr = json_decode($cache,true);
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return is_array($arr)?$arr:$cache;
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}
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/**
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* 删除缓存
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*
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* @access public
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* @return void
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*/
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public static function del($cachekey)
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{
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global $mc;
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$installDb = Typecho_Db::get();
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$config = Helper::options()->plugin(self::$pluginName);
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$table = $installDb->getPrefix().self::$tableName;
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if(is_array($cachekey)){
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foreach($cachekey as $k=>$v){
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self::del($v);
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}
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}else{
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$s = explode('/comment',$cachekey);
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$cachekey = $s[0];
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if($config->cacheMode=='Mysql'){
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if($preg=strstr($cachekey, '*',TRUE)){
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$where = $preg.'%';
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$installDb->query("DELETE FROM $table WHERE `hash` LIKE '$where'");
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}else{
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$delete = $installDb->delete('table.'.self::$tableName)->where('hash = ?', $cachekey)->limit(1);
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$installDb->query($delete);
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//$installDb->query("DELETE FROM $table WHERE `hash`='$cachekey'");
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}
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}else{
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$mc = $mc?$mc:self::intSaeMc();
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$mc->delete('mk-'.$cachekey);
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$mc->delete('mk-/');//更新首页评论数量
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}
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}
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}
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/**
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* memcache模式下 初始化memcache
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* @
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*/
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private static function intSaeMc(){
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global $mc;
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$config = Helper::options()->plugin(self::$pluginName);
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$mc = new Memcache;
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$mc->connect($config->mem_server, $config->mem_prot) or die ("连接memcached服务器失败");
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// try{
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// $mc = new Memcached;
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// $mc->addServer($config->mem_server, $config->mem_prot);
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// }catch (Exception $e){
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// echo $e->getMessage();
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// }
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return $mc;
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}
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public static function resetCache()
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{
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global $mc;
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$installDb = Typecho_Db::get();
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$config = Helper::options()->plugin(self::$pluginName);
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$table = $installDb->getPrefix().self::$tableName;
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if($config->cacheMode=='Mysql'){
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$installDb->query("TRUNCATE TABLE `$table`");
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}else{
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$mc = $mc?$mc:self::intSaeMc();
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$mc->flush();
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}
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}
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public static function install()
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{
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$installDb = Typecho_Db::get();
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$prefix = $installDb->getPrefix();
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$cacheTable = $prefix. self::$tableName;
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try {
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$installDb->query("CREATE TABLE `$cacheTable` (
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`hash` varchar(200) NOT NULL,
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`cache` longtext NOT NULL,
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`dateline` int(10) NOT NULL DEFAULT '0',
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`expire` int(8) NOT NULL DEFAULT '0',
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UNIQUE KEY `hash` (`hash`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8");
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return('MostCache缓存表创建成功, 插件已经被激活!');
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} catch (Typecho_Db_Exception $e) {
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$code = $e->getCode();
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if(('Mysql' == $type && 1050 == $code)) {
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$script = 'SELECT `hash`, `cache`, `dateline`, `expire` from `' . $cacheTable . '`';
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$installDb->query($script, Typecho_Db::READ);
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return '数据表已存在，插件启用成功';
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} else {
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throw new Typecho_Plugin_Exception('数据表建立失败，插件启用失败。错误号：'.$code);
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}
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}
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}
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public static function personalConfig(Typecho_Widget_Helper_Form $form) {
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}
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}
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