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Plugin.php
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Plugin.php
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<?php
/**
* 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
*
* @package MostCache
* @author skylzl,WeiCN
* @version 1.1.1
* @link http://www.phoneshuo.com
*/
class MostCache_Plugin implements Typecho_Plugin_Interface
{
private static $pluginName = 'MostCache';
private static $tableName = 'most_cache';
/**
* 激活插件方法,如果激活失败,直接抛出异常
*
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function activate()
{
$meg = MostCache_Plugin::install();
Typecho_Plugin::factory('index.php')->begin = array(self::$pluginName . '_Plugin', 'getCache');
Typecho_Plugin::factory('index.php')->end = array(self::$pluginName . '_Plugin', 'setCache');
Typecho_Plugin::factory('Widget_Feedback')->finishComment = array(self::$pluginName . '_Plugin', 'delCache');
Typecho_Plugin::factory('Widget_Contents_Page_Edit')->write = array(self::$pluginName . '_Plugin', 'delCache');
Typecho_Plugin::factory('Widget_Contents_Post_Edit')->write = array(self::$pluginName . '_Plugin', 'delCache');
// Helper::addAction('mostcache', 'MostCache_Action');
// Helper::addPanel(1, 'MostCache/panel.php', 'MostCache', 'MostCache缓存管理', 'administrator');
return _t($meg.'。请进行<a href="options-plugin.php?config='.self::$pluginName.'">初始化设置</a>');
}
/**
* 禁用插件方法,如果禁用失败,直接抛出异常
*
* @static
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function deactivate(){
$installDb = Typecho_Db::get();
$installDb->query("DROP TABLE IF EXISTS " . $installDb->getPrefix() . self::$tableName);
Helper::removeAction('mostcache');
Helper::removePanel(1, 'MostCache/panel.php');
}
/**
* 获取插件配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form 配置面板
* @return void
*/
public static function config(Typecho_Widget_Helper_Form $form)
{
$element = new Typecho_Widget_Helper_Form_Element_Radio(
'cacheMode', array('Mysql' => 'Mysql', 'memcache' => 'memcache'), 'Mysql',
'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。');
$form->addInput($element);
$selectArr = array(
'\/$|\/page\/\d'=>'首页','\/category'=>'分类','\/archive'=>'内容页','\/.*?\.(htm|html)$'=>'独立页面'
);
$element = new Typecho_Widget_Helper_Form_Element_Checkbox(
'cacheType', $selectArr, array(),
'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。');
$form->addInput($element);
$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');
$form->addInput($element);
$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');
$form->addInput($element);
$element = new Typecho_Widget_Helper_Form_Element_Text('mem_prot', NULL,'11211', _t('memcache服务器端口'),'整数端口');
$form->addInput($element);
$element = new Typecho_Widget_Helper_Form_Element_Radio(
'cacheCounter', array('0' => '否', '1' => '是'), 0,
'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');
$form->addInput($element);
$element = new Typecho_Widget_Helper_Form_Element_Radio(
'cacheTester', array('0' => '关闭', '1' => '开启'), 0,
'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。');
$form->addInput($element);
$list = array('关闭', '清除所有数据');
$element = new Typecho_Widget_Helper_Form_Element_Radio('is_clean', $list, 0, '清除所有数据');
$form->addInput($element);
}
/**
* 手动保存配置句柄
* @param $config array 插件配置
* @param $is_init bool 是否初始化
*/
public static function configHandle($config, $is_init)
{
if ($is_init != true) {
try {
if ($config['is_clean'] == '1'){
self::resetCache();
}
} catch (Exception $e) {
print $e->getMessage();
die;
}
// 删除缓存仅生效一次
$config['is_clean'] = '0';
}
Helper::configPlugin('MostCache', $config);
}
public static function getCache(){
global $noCache,$user;
Typecho_Widget::widget('Widget_User')->to($user);
if($user->hasLogin()) return;
$installDb = Typecho_Db::get();
$config = Helper::options()->plugin(self::$pluginName);
$request = new Typecho_Request;
$requestHash = $request->getPathinfo();
#尝试获取缓存
if($config->cacheType){
$s = implode('|',$config->cacheType);
$preg = '/^('.$s.')/';
if(preg_match($preg,$requestHash)){
$cache = self::get($requestHash);
if(!$cache){
$noCache = true;
return;
}else{
#增加访问统计,解决缓存造成文章无法统计
if($config->cacheCounter and preg_match_all('/^\/archives\/(\d+)/',$requestHash,$cid_)){
$cid = intval($cid_[1][0]);
if($cid){
$installDb->query("UPDATE ".$installDb->getPrefix()."contents SET views=views+1 WHERE cid='$cid'");
}
}
#解决搜索失效问题,检测到POST就不输出缓存
if(isset($_GET['s'])||isset($_POST['s']))return;
echo $cache;
if($config->cacheTester) echo '<small style="font-size:10px;color:#bbb;">读取缓存内容::'.round((strlen($cache)/1024),2).'K</small>';
exit;
}
}
}
}
public static function setCache(){
global $noCache,$user;
Typecho_Widget::widget('Widget_User')->to($user);
if($user->hasLogin()) return;
if(!$noCache) return;
$request = new Typecho_Request;
$requestHash = $request->getPathinfo();
#尝试存入缓存
$cache = ob_get_contents();
self::set($requestHash,$cache);
$config = Helper::options()->plugin(self::$pluginName);
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:'.$config->cacheTime.'天 期间如有新文章发布、新评论产生将自动刷新缓存</small>';
return;
}
/**
* @清除指定标帜缓存
*/
public static function delCache($param,$param2){
if(is_object($param) and intval($param->cid)>0){#评论更新
self::del($param->request->getPathinfo());
}elseif(is_array($param) and $param['text']){#发布文章更新
$config = Helper::options()->plugin(self::$pluginName);
$s = implode('|',$config->cacheType);
$del = array($param2->pathinfo);
if(strstr($s, 'page',TRUE)){
array_push($del, '/','/page/*');
}
if(strstr($s, 'category',TRUE)){
foreach ($param2->categories as $key => $value) {
$pregc = '/category/'.$value['slug'].'/*';
array_push($del, $pregc);
unset($pregc);
}
}
self::del($del);
return $param;#返回发布内容
}else{
return;
}
}
/**
* 设置缓存
*
* @access public
* @param string $anchor 锚点
* @return void
*/
public static function set($key, $cache)
{
global $mc;
$installDb = Typecho_Db::get();
$config = Helper::options()->plugin(self::$pluginName);
$expire = (intval($config->cacheTime)>1?intval($config->cacheTime):1)*24*60*60;
if(is_array($cache)) $cache = json_encode($cache);
if($config->cacheMode=='Mysql'){
$table = $installDb->getPrefix().self::$tableName;
$time = time();
$cache = addslashes($cache);
$sql = "REPLACE INTO $table (`hash`,`cache`,`dateline`,`expire`) VALUES ('$key','$cache','$time','$expire')";
#
$installDb->query($sql);
}else{
$mc = $mc?$mc:self::intSaeMc();
$mc->set('mk-'.$key, $cache, 0,$expire);
}
}
/**
* 获取缓存
*
* @access public
* @return void
*/
public static function get($key)
{
global $mc;
$installDb = Typecho_Db::get();
$config = Helper::options()->plugin(self::$pluginName);
if($config->cacheMode=='Mysql'){
$row = $installDb->fetchRow($installDb->select('cache','dateline','expire')->from('table.'.self::$tableName)->where('hash = ?', $key));
if(!$row) return;
if(time()-$row['dateline']>$row['expire']) self::del($key);
$cache = $row['cache'];
}else{
$mc = $mc?$mc:self::intSaeMc();
$cache = trim($mc->get('mk-'.$key));
}
$arr = json_decode($cache,true);
return is_array($arr)?$arr:$cache;
}
/**
* 删除缓存
*
* @access public
* @return void
*/
public static function del($cachekey)
{
global $mc;
$installDb = Typecho_Db::get();
$config = Helper::options()->plugin(self::$pluginName);
$table = $installDb->getPrefix().self::$tableName;
if(is_array($cachekey)){
foreach($cachekey as $k=>$v){
self::del($v);
}
}else{
$s = explode('/comment',$cachekey);
$cachekey = $s[0];
if($config->cacheMode=='Mysql'){
if($preg=strstr($cachekey, '*',TRUE)){
$where = $preg.'%';
$installDb->query("DELETE FROM $table WHERE `hash` LIKE '$where'");
}else{
$delete = $installDb->delete('table.'.self::$tableName)->where('hash = ?', $cachekey)->limit(1);
$installDb->query($delete);
//$installDb->query("DELETE FROM $table WHERE `hash`='$cachekey'");
}
}else{
$mc = $mc?$mc:self::intSaeMc();
$mc->delete('mk-'.$cachekey);
$mc->delete('mk-/');//更新首页评论数量
}
}
}
/**
* memcache模式下 初始化memcache
* @
*/
private static function intSaeMc(){
global $mc;
$config = Helper::options()->plugin(self::$pluginName);
$mc = new Memcache;
$mc->connect($config->mem_server, $config->mem_prot) or die ("连接memcached服务器失败");
// try{
// $mc = new Memcached;
// $mc->addServer($config->mem_server, $config->mem_prot);
// }catch (Exception $e){
// echo $e->getMessage();
// }
return $mc;
}
public static function resetCache()
{
global $mc;
$installDb = Typecho_Db::get();
$config = Helper::options()->plugin(self::$pluginName);
$table = $installDb->getPrefix().self::$tableName;
if($config->cacheMode=='Mysql'){
$installDb->query("TRUNCATE TABLE `$table`");
}else{
$mc = $mc?$mc:self::intSaeMc();
$mc->flush();
}
}
public static function install()
{
$installDb = Typecho_Db::get();
$prefix = $installDb->getPrefix();
$cacheTable = $prefix. self::$tableName;
try {
$installDb->query("CREATE TABLE `$cacheTable` (
`hash` varchar(200) NOT NULL,
`cache` longtext NOT NULL,
`dateline` int(10) NOT NULL DEFAULT '0',
`expire` int(8) NOT NULL DEFAULT '0',
UNIQUE KEY `hash` (`hash`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8");
return('MostCache缓存表创建成功, 插件已经被激活!');
} catch (Typecho_Db_Exception $e) {
$code = $e->getCode();
if(('Mysql' == $type && 1050 == $code)) {
$script = 'SELECT `hash`, `cache`, `dateline`, `expire` from `' . $cacheTable . '`';
$installDb->query($script, Typecho_Db::READ);
return '数据表已存在，插件启用成功';
} else {
throw new Typecho_Plugin_Exception('数据表建立失败，插件启用失败。错误号：'.$code);
}
}
}
public static function personalConfig(Typecho_Widget_Helper_Form $form) {
}
}