121 lines
3.6 KiB
PHP
121 lines
3.6 KiB
PHP
<?php
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/**
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* 在显示404之前使用规则重写
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*
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* @package RewriteRule
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* @author laobubu
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* @version 1.0.0
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* @link http://laobubu.net
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*/
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class RewriteRule_Plugin implements Typecho_Plugin_Interface
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{
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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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Typecho_Plugin::factory('Widget_Archive')->error404Handle = array('RewriteRule_Plugin', 'error404Handle');
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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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/**
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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 $form){
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$introduce = new Typecho_Widget_Helper_Layout("div");
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$introduce->html(<<<EOI
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<p>在 Typecho 正式显示 404 之前，此插件会遍历列表并作出跳转。</p>
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<p>规则列表一行一个，格式为： Pattern Rewrite结果 [flags]</p>
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<p>比如【 <code class="success">^\/(\d+)\/?$ /archives/$1 T</code> 】可以把 /12 以302重定向跳转到 /archivers/12 </p>
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<p><a href="https://github.com/laobubu/Typecho_rewriterule">详细说明看这里</a></p>
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EOI
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);
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$rules = new Typecho_Widget_Helper_Form_Element_Textarea('rules', NULL, '不符合书写规范的行可以当注释哦', _t('规则列表'));
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$form->addInput($rules);
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$form->addItem($introduce);
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}
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/**
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* 个人用户的配置面板
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*
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* @access public
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* @param Typecho_Widget_Helper_Form $form
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* @return void
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*/
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public static function personalConfig(Typecho_Widget_Helper_Form $form){}
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/**
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* 插件实现方法
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*
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* @access public
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* @return void
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*/
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public static function error404Handle($that,$select) {
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$rules = Typecho_Widget::widget('Widget_Options')->plugin('RewriteRule')->rules;
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$rules = str_replace("\r","",$rules);
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$rules = explode("\n",$rules);
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$uri = $_SERVER['REQUEST_URI'];
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$func_decorate_key = function($value) {return '$'.$value;};
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$matcher_list = array('cid','slug','category');
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foreach($rules as $i) {
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$i = preg_replace("/\s+/","\t",trim($i));
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$l = explode("\t",$i,3);
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if (count($l)>=2) {
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$flags = $l[2]?$l[2]:"";
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$pattern = "/".$l[0]."/";
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if (stristr($flags,'i')) $pattern.="i";
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if (!preg_match($pattern,$uri,$match_out))
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continue;
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if (stristr($flags,'c')) {
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$count_of_matcher = 0;
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foreach ($matcher_list as $mli) {
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if (isset($match_out[$mli])) {
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$select = $select->where('typecho_contents.`'.$mli.'` = ?', $match_out[$mli]);
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$count_of_matcher++;
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}
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}
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if ($count_of_matcher==0) continue;
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$that->slug = NULL;
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$that->query($select);
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$match_out['cid'] = $that->cid;
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$match_out['slug'] = $that->slug;
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$match_out['category'] = $that->category;
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if (!$that->slug) continue;
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}
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$r1 = array_map($func_decorate_key,array_keys($match_out));
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$r2 = array_values($match_out);
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$newuri = str_replace($r1,$r2,$l[1]);
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header(stristr($flags,'t') ? "HTTP/1.1 302 Found" : "HTTP/1.1 301 Moved Permanently");
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header("Location: ".$newuri);
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echo '<meta http-equiv="refresh" content="0; url='.$newuri.'" />';
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echo "<a href=\"{$newuri}\">Click to continue</a>";
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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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