├── Plugin.php
└── README.md


/Plugin.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | if (!defined('__TYPECHO_ROOT_DIR__')) exit;
  3 | /**
  4 |  * 为文中的指定关键词添加链接
  5 |  * 
  6 |  * @package Keywords
  7 |  * @author 羽中
  8 |  * @version 1.0.8
  9 |  * @dependence 13.12.12-*
 10 |  * @link http://www.yzmb.me/archives/net/keywords-for-typecho
 11 |  */
 12 | class Keywords_Plugin implements Typecho_Plugin_Interface
 13 | {
 14 | 	/**
 15 | 	 * 激活插件方法,如果激活失败,直接抛出异常
 16 | 	 * 
 17 | 	 * @access public
 18 | 	 * @return void
 19 | 	 * @throws Typecho_Plugin_Exception
 20 | 	 */
 21 | 	public static function activate()
 22 | 	{
 23 | 		Typecho_Plugin::factory('Widget_Abstract_Contents')->contentEx = array('Keywords_Plugin','kwparse');
 24 | 		Typecho_Plugin::factory('Widget_Abstract_Contents')->excerptEx = array('Keywords_Plugin','kwparse');
 25 | 	}
 26 | 
 27 | 	/**
 28 | 	 * 禁用插件方法,如果禁用失败,直接抛出异常
 29 | 	 * 
 30 | 	 * @static
 31 | 	 * @access public
 32 | 	 * @return void
 33 | 	 * @throws Typecho_Plugin_Exception
 34 | 	 */
 35 | 	public static function deactivate(){}
 36 | 
 37 | 	/**
 38 | 	 * 获取插件配置面板
 39 | 	 * 
 40 | 	 * @access public
 41 | 	 * @param Typecho_Widget_Helper_Form $form 配置面板
 42 | 	 * @return void
 43 | 	 */
 44 | 	public static function config(Typecho_Widget_Helper_Form $form)
 45 | 	{
 46 | 		$keywords = new Typecho_Widget_Helper_Form_Element_Textarea('keywords',NULL,'',_t('关键词链接'),_t('每行1组以"关键词<strong style="color:#467B96;">|</strong>(半角竖线)链接"形式填写, 可用第2个竖线追加参数: </br>
 47 | 		<strong style="color:#467B96;">n</strong>代表nofollow标记, <strong style="color:#467B96;">e</strong>代表external nofollow标记, <strong style="color:#467B96;">b</strong>代表本窗口打开. 例: <br/>google<strong>|</strong>http://www.google.com<strong>|</strong>n 即此链接带nofollow(默认新窗口打开)'));
 48 | 		$keywords->input->setAttribute('style','max-width:400px;height:150px;');
 49 | 		$form->addInput($keywords);
 50 | 
 51 | 		$autolink = new Typecho_Widget_Helper_Form_Element_Checkbox('autolink',array('catslink'=>_t('分类名称'),'tagslink'=>_t('标签名称')),NULL,_t('自动内链'),_t('将与分类/标签名相同的词替换为分类/标签页链接'));
 52 | 		$form->addInput($autolink);
 53 | 
 54 | 		$nofollow = new Typecho_Widget_Helper_Form_Element_Checkbox('nofollow',
 55 | 		array(1=>_t('nofollow标记')),NULL,_t('内链设置'));
 56 | 		$form->addInput($nofollow);
 57 | 
 58 | 		$blank = new Typecho_Widget_Helper_Form_Element_Select('blank',
 59 | 		array(0=>_t('本窗口打开'),1=>_t('新窗口打开')),0,'');
 60 | 		$blank->input->setAttribute('style','position:absolute;bottom:11px;left:115px;');
 61 | 		$blank->setAttribute('style','position:relative;');
 62 | 		$form->addInput($blank);
 63 | 
 64 | 		$limits = new Typecho_Widget_Helper_Form_Element_Text('limits',NULL,'1',_t('链接频次'),_t('文中有多个重复关键词时可指定替换为链接的次数'));
 65 | 		$limits->input->setAttribute('style','width:40px;');
 66 | 		$limits->addRule('required',_t('链接次数不能为空'));
 67 | 		$form->addInput($limits->addRule('isInteger',_t('请填写整数数字')));
 68 | 
 69 | 		$pagelinks = new Typecho_Widget_Helper_Form_Element_Radio('pagelinks',array(1=>_t('是'),0=>_t('否')),1,_t('页面使用'),_t('除文章外是否将替换链接效果作用于独立页面内容'));
 70 | 		$form->addInput($pagelinks);
 71 | 	}
 72 | 
 73 | 	/**
 74 | 	 * 个人用户的配置面板
 75 | 	 * 
 76 | 	 * @access public
 77 | 	 * @param Typecho_Widget_Helper_Form $form
 78 | 	 * @return void
 79 | 	 */
 80 | 	public static function personalConfig(Typecho_Widget_Helper_Form $form){}
 81 | 
 82 | 	/**
 83 | 	 * 执行数据替换
 84 | 	 * 
 85 | 	 * @access public
 86 | 	 * @param string $content
 87 | 	 * @return string
 88 | 	 */
 89 | 	public static function kwparse($content,$widget,$lastResult)
 90 | 	{
 91 | 		$content = empty($lastResult) ? $content : $lastResult;
 92 | 		$keywords = self::keywords();
 93 | 
 94 | 		if ($widget instanceof Widget_Archive && $keywords) {
 95 | 			$settings = Helper::options()->plugin('Keywords');
 96 | 
 97 | 			//关闭页面内容替换
 98 | 			if ($widget->is('page') && !$settings->pagelinks) {
 99 | 				return $content;
100 | 			}
101 | 			foreach ($keywords as $i=>$row) {
102 | 				$txt = trim($row['0']);
103 | 				if ($txt) {
104 | 					$link = trim($row['1']);
105 | 					$set = trim($row['2']);
106 | 					$rel = '';
107 | 					$open = '_blank';
108 | 
109 | 					//处理标记与打开方式
110 | 					 if ($set) {
111 | 					 	 if (false!==stripos($set,'e')) {
112 | 					 	 	 $rel = ' rel="external nofollow"';
113 | 					 	 } elseif (false!==stripos($set,'n')) {
114 | 					 	 	 $rel = ' rel="nofollow"';
115 | 					 	 }
116 | 					 	 $open = false!==stripos($set,'b') ? '_self' : $open;
117 | 					 }
118 | 
119 | 					$content = false!==strpos($content,$txt)
120 | 						//正则排除参数和链接
121 | 						? preg_replace('/(?!<[^>]*)'.$txt.'(?![^<]*(>|<\/[a|sc]))/s'
122 | 					,'<a href="'.$link.'"'.$rel. 'target="'.$open.'" title="'.$txt.'">'.$txt.'</a>',$content,$settings->limits) : $content;
123 | 				}
124 | 			}
125 | 		}
126 | 
127 | 		return $content;
128 | 	}
129 | 
130 | 	/**
131 | 	 * 输出关键词数据
132 | 	 * 
133 | 	 * @access private
134 | 	 * @return array
135 | 	 */
136 | 	private static function keywords()
137 | 	{
138 | 		$settings = Helper::options()->plugin('Keywords');
139 | 		$autolink = $settings->autolink;
140 | 		$kwarray = array();
141 | 		$keyword = trim(Typecho_Common::stripTags($settings->keywords));
142 | 
143 | 		if (strpos($keyword,'|')) {
144 | 			//解析关键词数组
145 | 			$kwsets = array_filter(preg_split("/(\r|\n|\r\n)/",$keyword));
146 | 			foreach ($kwsets as $kwset) {
147 | 				$kwarray[] = explode('|',$kwset);
148 | 			}
149 | 		}
150 | 
151 | 		if ($autolink) {
152 | 			$db = Typecho_Db::get();
153 | 			$nofollow = $settings->nofollow ? 'n' : '';
154 | 			$blank = $settings->blank ? '' : 'b';
155 | 
156 | 			if (in_array('catslink',$autolink)) {
157 | 				$catselect = $db->select()->from('table.metas')->where('type = ?','category');
158 | 				$catdata = $db->fetchAll($catselect,array(Typecho_Widget::widget('Widget_Abstract_Metas'),'filter'));
159 | 
160 | 				//并入分类链接
161 | 				$cats = array();
162 | 				foreach ($catdata as $cat) {
163 | 					$cats[] = array($cat['name'],$cat['permalink'],$nofollow.$blank);
164 | 				}
165 | 				$kwarray = array_merge($kwarray,$cats);
166 | 			}
167 | 
168 | 			if (in_array('tagslink',$autolink)) {
169 | 				$tagselect = $db->select()->from('table.metas')->where('type = ?','tag');
170 | 				$tagdata = $db->fetchAll($tagselect,array(Typecho_Widget::widget('Widget_Abstract_Metas'),'filter'));
171 | 
172 | 				//并入标签链接
173 | 				if ($tagdata) {
174 | 					$tags = array();
175 | 					foreach ($tagdata as $tag) {
176 | 						$tags[] = array($tag['name'],$tag['permalink'],$nofollow.$blank);
177 | 					}
178 | 					$kwarray = array_merge($kwarray,$tags);
179 | 				}
180 | 			}
181 | 		}
182 | 
183 | 		if ($kwarray) {
184 | 			//优先处理长词
185 | 			usort($kwarray,array(new Keywords_Plugin,'lsort'));
186 | 		}
187 | 
188 | 		return $kwarray;
189 | 	}
190 | 
191 | 	/**
192 | 	 * 按字符长短排序
193 | 	 * 
194 | 	 * @access private
195 | 	 * @return integer
196 | 	 */
197 | 	private static function lsort($a,$b) {
198 | 		return strlen($a['0'])<strlen($b['0']) ? 1 : -1;
199 | 	}
200 | 
201 | }


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | ### Typecho关键词链接插件Keywords
2 | 2018年6月24日更新至**v1.0.8**: 
3 | - 增加链接标记参数支持
4 | - 增加分类内链与标记项
5 | - 修正版本空字符等bug
6 | 
7 | #### 详细说明与效果演示见blog发布地址: 
8 |  > http://www.yzmb.me/archives/net/keywords-for-typecho


--------------------------------------------------------------------------------