强大的小墙Anti-Spam

作者：matrix 被围观: 2,855 次 发布时间：2013-09-27 分类：Wordpress 兼容并蓄 | 一条评论 »

WordPress的垃圾评论是越来越多，by Willin Kan大师的小墙更是相当的强大！

使用：将代码放入主题的functions.php中即是。

<?php   
/* <<小牆>> Anti-spam v1.82 by Willin Kan. 2010/12/16 最新修改 */  
//建立  
class anti_spam {  
  function anti_spam() {  
    if ( !current_user_can('level_0') ) {  
      add_action('template_redirect', array($this, 'w_tb'), 1);  
      add_action('init', array($this, 'gate'), 1);  
      add_action('preprocess_comment', array($this, 'sink'), 1);  
    }  
  }  
  //設欄位  
  function w_tb() {  
    if ( is_singular() ) {  
      ob_start(create_function('$input','return preg_replace("#textarea(.*?)name=([\"\'])comment([\"\'])(.+)/textarea>#",  
      "textarea$1name=$2w$3$4/textarea><textarea name=\"comment\" cols=\"100%\" rows=\"4\" style=\"display:none\"></textarea>",$input);') );  
    }  
  }  
  //檢查  
  function gate() {  
    if ( !emptyempty($_POST['w']) && emptyempty($_POST['comment']) ) {  
      $_POST['comment'] = $_POST['w'];  
    } else {  
      $request = $_SERVER['REQUEST_URI'];  
      $referer = isset($_SERVER['HTTP_REFERER'])         ? $_SERVER['HTTP_REFERER']         : '隱瞞';  
      $IP      = isset($_SERVER["HTTP_X_FORWARDED_FOR"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] . ' (透過代理)' : $_SERVER["REMOTE_ADDR"];  
      $way     = isset($_POST['w'])                      ? '手動操作'                       : '未經評論表格';  
      $spamcom = isset($_POST['comment'])                ? $_POST['comment']                : null;  
      $_POST['spam_confirmed'] = "請求: ". $request. "\n來路: ". $referer. "\nIP: ". $IP. "\n方式: ". $way. "\n內容: ". $spamcom. "\n -- 記錄成功 --";  
    }  
  }  
  //處理  
  function sink( $comment ) {  
    if ( !emptyempty($_POST['spam_confirmed']) ) {  
      if ( in_array( $comment['comment_type'], array('pingback', 'trackback') ) ) return $comment; //不管 Trackbacks/Pingbacks  
      //方法一: 直接擋掉, 將 die(); 前面兩斜線刪除即可.  
      //die();  
      //方法二: 標記為 spam, 留在資料庫檢查是否誤判.  
      add_filter('pre_comment_approved', create_function('', 'return "spam";'));  
      $comment['comment_content'] = "[ 小牆判斷這是Spam! ]\n". $_POST['spam_confirmed'];  
    }  
    return $comment;  
  }  
}  
$anti_spam = new anti_spam();  
// -- END ----------------------------------------  


?>  

小牆v1.9

<?php  
 /* ----------------------------------------------- 
 <;<小牆>> Anti-Spam v1.9 by Willin Kan. 
 */  
 //建立  
 class anti_spam {  
   function anti_spam() {  
     if ( !is_user_logged_in() ) {  
       add_action('template_redirect', array($this, 'w_tb'), 1);  
       add_action('pre_comment_on_post', array($this, 'gate'), 1);  
       add_action('preprocess_comment', array($this, 'sink'), 1);  
     }  
   }  
   //設欄位  
   function w_tb() {  
     if ( is_singular() ) {  
       ob_start(create_function('$input', 'return preg_replace("#textarea(.*?)name=([\"\'])comment([\"\'])(.+)/textarea>#",  
       "textarea$1name=$2w$3$4/textarea><textarea name=\"comment\" cols=\"60\" rows=\"4\" style=\"display:none\"></textarea>", $input);') );  
      }  
   }  
   //檢查  
   function gate() {  
     ( !emptyempty($_POST['w']) &;& emptyempty($_POST['comment']) ) ? $_POST['comment'] = $_POST['w'] : $_POST['spam_confirmed'] = 1;  
   }  
   //處理  
   function sink( $comment ) {  
     if ( !emptyempty($_POST['spam_confirmed']) ) {  
       //方法一:直接擋掉, 將 die(); 前面兩斜線刪除即可.  
       //die();  
       //方法二:標記為spam, 留在資料庫檢查是否誤判.  
       add_filter('pre_comment_approved', create_function('', 'return "spam";'));  
       $comment['comment_content'] = "[ 小牆判斷這是Spam! ]\n" . $comment['comment_content'];  
     }  
     return $comment;  
   }   
}  
$anti_spam = new anti_spam();  
// -- END ----------------------------------------  

参考：http://www.aircyan.com/system/no-plugin-anti-spam.html