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过滤、添加关键词、添加网页关键词、网页描述管理程序

字号:  小  中  大  | 打印    阿杜博客-在领域中实现自我价值  发布时间:2013年07月04日 20:28   评论»   

****************************add_keywords.php*****************************************

<?php
include_once("../include/other_func_inc.php");
if($_POST['pwd']=='123'){
 $get_keywords = $_POST['keywords_cut'];
 $keydesc      = $_POST['keydesc_cut'];
 $dealkeywords = insert_keywords("keywords.txt",$get_keywords);
 $dealkeydescs = insert_keywords("keydesc.txt",$keydesc);
}

function insert_keywords($url,$val){
 $getcon = file_get_contents($url);
 $array_con = explode("\r\n", $getcon);
 $array_val = explode("\r\n", $val);
 $f = fopen($url,'a+');
 for($i=0;$i<count($array_val);$i++){
  $array_val[$i] = replaceHtmlAndJs(safe_replace(drop_sql($array_val[$i])));
  if(!in_array($array_val[$i],$array_con)){
   if(!empty($array_val[$i])){
    fwrite($f,"\r\n".$array_val[$i]);
   }
  }
 }
 fclose($f);
 return true;
}
?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>扩充关键词描述词库</title>
</style>
</head>
<body>
<?php
 $content = file_get_contents('keywords.txt'); 
 $cutkeywords = explode("\r\n", $content);
 $count = count($cutkeywords);

 $content_desc = file_get_contents('keydesc.txt'); 
 $cutkey_desc = explode("\r\n",$content_desc);
 $count_desc = count($cutkey_desc);
?>
<h3>词库已有<font color=red><?php echo $count?></font>个过关键词</h3>
<div style="width:500px;height:200px;overflow:auto;border:1px solid #dedede;padding:5px;">
<?php
 foreach($cutkeywords as $val){
  echo $val."</br>";
 }
?>
</div>
<h3>词库已有<font color=red><?php echo $count_desc?></font>个过短描述</h3>
<div style="width:500px;height:200px;overflow:auto;border:1px solid #dedede;padding:5px;">
<?php
 foreach($cutkey_desc as $val){
  echo $val."</br>";
 }
?>
</div>
<h3>词库添加</h3>
<form action="?" method="post">
<table>
 <tr>
  <td>输入密码：</td>
  <td><input type="password" name="pwd" style="width:120px;" value="<?php echo $_POST['pwd']?>" /></td>
 </tr>
 <tr>
  <td>关键词：</td>
  <td><textarea name="keywords_cut" style="width:200px;height:100px;"></textarea></td>
 </tr>
 <tr>
  <td>网页描述：</td>
  <td><textarea name="keydesc_cut" style="width:200px;height:100px;"></textarea></td>
 </tr>
 <tr>
  <td colspan='2' align="center"><input type="submit" name="sum" value="添加" /></td>
 </tr>
</table>
</form>
</body>
</html>

****************************keywords_conf.php【关键词和网页描述随机获取】*****************************************

<?php
 $array_keywords = "keywords.txt";
 $array_desc     = "keydesc.txt";
 
 function get_kwords_desc($keyword){
  global $array_keywords;
  global $array_desc;
  
  $rand_kwords = getarrayForeach($array_keywords,3);
  $rand_kdesc  = getarrayForeach($array_desc,2);

  return $array = array(
   'keywords' => $keyword.'_'.implode("_",$rand_kwords),
   'kdesc'    => $keyword.'_'.implode("_",$rand_kdesc),
  );
 }

 /*
 *获取随机数数组值
 *TXT文件;获取数组长度;
 */
 function getarrayForeach($txtfile,$arrlength=1){
  $txtfile   = file_get_contents($txtfile);
  $array_all = explode("\r\n",$txtfile);
  if((is_array($array_all))&&(count($array_all)>0)){
   $rand_arr = array_rand($array_all,$arrlength);
   $result = array();
   for($i=0;$i<count($rand_arr);$i++){
    $result[] = $array_all[$rand_arr[$i]];
   }
  }else{
   $result =  false;
  }
  return $result;
 }
?>

****************************other_func_inc.php【网页内容过滤】*****************************************

<?php
 function replaceHtmlAndJs($document) {
  $document=trim($document);
  if (strlen($document) <=0) { return$document; }
  $search = array (
       "'<script[^>]*?>.*?</script>'si",
       "'<[\/\!]*?[^<>]*?>'si",
       "'([\r\n])[\s]+'",
       "'&(quot|#34);'i",
       "'&(amp|#38);'i",
       "'&(lt|#60);'i",
       "'&(gt|#62);'i",
       "'&(nbsp|#160);'i"
       );
  $replace= array (
       "",
       "",
       "\\1",
       "\"",
       "&",
       "<",
       ">",
       " "
       );
  return @preg_replace($search,$replace,$document);
 }
 function drop_sql($str)
 {
    $str = str_replace("and","",$str);
    $str = str_replace("execute","",$str);
    $str = str_replace("update","",$str);
    $str = str_replace("count","",$str);
    $str = str_replace("chr","",$str);
    $str = str_replace("mid","",$str);
    $str = str_replace("master","",$str);
    $str = str_replace("truncate","",$str);
    $str = str_replace("char","",$str);
    $str = str_replace("declare","",$str);
    $str = str_replace("select","",$str);
    $str = str_replace("create","",$str);
    $str = str_replace("delete","",$str);
    $str = str_replace("insert","",$str);
    $str = str_replace("'","",$str);
    $str = str_replace(" ","",$str);
    $str = str_replace("or","",$str);
    $str = str_replace("=","",$str);
    $str = str_replace("%20","",$str);
    return $str;
 }

 function safe_replace($string)
 {
  $string = str_replace('%20','',$string);
  $string = str_replace('%27','',$string);
  $string = str_replace('*','',$string);
  $string = str_replace('"','&quot;',$string);
  $string = str_replace("'",'',$string);
  $string = str_replace("\"",'',$string);
  $string = str_replace('//','',$string);
  $string = str_replace(';','',$string);
  $string = str_replace('<','&lt;',$string);
  $string = str_replace('>','&gt;',$string);
  $string = str_replace('(','',$string);
  $string = str_replace(')','',$string);
  $string = str_replace("{",'',$string);
  $string = str_replace('}','',$string);
  return $string;
 }

 //过滤接收的变量
 function clear_str($str){
   $str = strip_tags($str);
   $str = addslashes($str);
  return $str;
 }

 //获取IP地址函数 
 function GetRealIP(){
  /*if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
  $ip = getenv("HTTP_CLIENT_IP");
  else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
  $ip = getenv("HTTP_X_FORWARDED_FOR");
  else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
  $ip = getenv("REMOTE_ADDR");
  else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
  $ip = $_SERVER['REMOTE_ADDR'];
  else
  $ip = "unknown";*/
  static $realip = NULL;

  if ($realip !== NULL)
  {
   return $realip;
  }

  if (isset($_SERVER))
  {
   if (isset($_SERVER['HTTP_X_FORWARDED_FOR']))
   {
    $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);

    /* 取X-Forwarded-For中第一个非unknown的有效IP字符串 */
    foreach ($arr AS $ip)
    {
     $ip = trim($ip);

     if ($ip != 'unknown')
     {
      $realip = $ip;

      break;
     }
    }
   }
   elseif (isset($_SERVER['HTTP_CLIENT_IP']))
   {
    $realip = $_SERVER['HTTP_CLIENT_IP'];
   }
   else
   {
    if (isset($_SERVER['REMOTE_ADDR']))
    {
     $realip = $_SERVER['REMOTE_ADDR'];
    }
    else
    {
     $realip = '0.0.0.0';
    }
   }
  }
  else
  {
   if (getenv('HTTP_X_FORWARDED_FOR'))
   {
    $realip = getenv('HTTP_X_FORWARDED_FOR');
   }
   elseif (getenv('HTTP_CLIENT_IP'))
   {
    $realip = getenv('HTTP_CLIENT_IP');
   }
   else
   {
    $realip = getenv('REMOTE_ADDR');
   }
  }

  preg_match("/[\d\.]{7,15}/", $realip, $onlineip);
  $realip = !empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0';
  return($realip);
 }

 //-------------文件操作方法------------

function pd_file($file,$con){
 if(file_exists($file)){
  add_write($file,$con);
 }else{

  null_write($file,$con);
 }
}

//建立一个文件并写入输入
function null_write($file,$con){
 $f=fopen($file,"w");
 flock($f,LOCK_EX);
 fputs($f,$con);
 fclose($f);
}

// 添加数据记录到文件末端
function add_write($file,$con) {
 $f=fopen($file,"a");
 flock($f,LOCK_EX);
 fputs($f,"\n");
 fputs($f,$con);
 fclose($f);
}
//-------------文件操作方法------------
 /**********************************
  * 截取字符串(UTF-8)
  *
  * @param string $str 原始字符串
  * @param $position 开始截取位置
  * @param $length 需要截取的偏移量
  * @return string 截取的字符串
  * $type=1 等于1时末尾加'...'不然不加
 *********************************/
 function substrs($str,$length,$type='Y'){
  $position = 0;
  $startPos = strlen($str);
  $startByte = 0;
  $endPos = strlen($str);
  $count = 0;
  for($i=0; $i<strlen($str); $i++){
   if($count>=$position && $startPos>$i){
    $startPos = $i;
    $startByte = $count;
   }
   if(($count-$startByte) >= $length) {
    $endPos = $i;
    break;
   }   
   $value = ord($str[$i]);
   if($value > 127){
    $count++;
    if($value>=192 && $value<=223) $i++;
    elseif($value>=224 && $value<=239) $i = $i + 2;
    elseif($value>=240 && $value<=247) $i = $i + 3;
    else return self::raiseError("\"$str\" Not a UTF-8 compatible string", 0, __CLASS__, __METHOD__, __FILE__, __LINE__);
   }
   $count++;

  }
  if($type==1 && ($endPos-6)>$length){
   return substr($str, $startPos, $endPos-$startPos)."...";
       }else{
   return substr($str, $startPos, $endPos-$startPos);    
    }
 
 }
/**
 * utf8字符串整齐化
 *
 * @param string $str
 * @return string
 */
function utf8_trim($str) {
 $hex = '';
 $len = strlen($str) - 1;
 for ($i = $len; $i >= 0; $i -= 1) {
  $ch = ord($str[$i]);
  $hex .= " $ch";
  if (($ch & 128) == 0 || ($ch & 192) == 192) {return substr($str, 0, $i);}
 }
 return $str . $hex;
}
//Remove the exploer'bug XSS
function RemoveXSS($val) {
   // remove all non-printable characters. CR(0a) and LF(0b) and TAB(9) are allowed
   // this prevents some character re-spacing such as <java\0script>
   // note that you have to handle splits with \n, \r, and \t later since they *are* allowed in some inputs
   $val = preg_replace('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/', '', $val);
   // straight replacements, the user should never need these since they're normal characters
   // this prevents like <IMG SRC=@avascript:alert('XSS')>
   $search = 'abcdefghijklmnopqrstuvwxyz';
   $search .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
   $search .= '1234567890!@#$%^&*()';
   $search .= '~`";:?+/={}[]-_|\'\\';
   for ($i = 0; $i < strlen($search); $i++) {
      // ;? matches the ;, which is optional
      // 0{0,7} matches any padded zeros, which are optional and go up to 8 chars

      // @ @ search for the hex values
      $val = preg_replace('/(&#[xX]0{0,8}'.dechex(ord($search[$i])).';?)/i', $search[$i], $val); // with a ;
      // @ @ 0{0,7} matches '0' zero to seven times
      $val = preg_replace('/(&#0{0,8}'.ord($search[$i]).';?)/', $search[$i], $val); // with a ;
   }

   // now the only remaining whitespace attacks are \t, \n, and \r
   $ra1 = array('javascript', 'vbscript', 'expression', 'applet', 'meta', 'xml', 'blink', 'link', 'style', 'script', 'embed', 'object', 'iframe', 'frame', 'frameset', 'ilayer', 'layer', 'bgsound', 'title', 'base');
   $ra2 = array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavailable', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterchange', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowenter', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload');
   $ra = array_merge($ra1, $ra2);

   $found = true; // keep replacing as long as the previous round replaced something
   while ($found == true) {
      $val_before = $val;
      for ($i = 0; $i < sizeof($ra); $i++) {
         $pattern = '/';
         for ($j = 0; $j < strlen($ra[$i]); $j++) {
            if ($j > 0) {
               $pattern .= '(';
               $pattern .= '(&#[xX]0{0,8}([9ab]);)';
               $pattern .= '|';
               $pattern .= '|(&#0{0,8}([9|10|13]);)';
               $pattern .= ')*';
            }
            $pattern .= $ra[$i][$j];
         }
         $pattern .= '/i';
         $replacement = substr($ra[$i], 0, 2).'<x>'.substr($ra[$i], 2); // add in <> to nerf the tag
         $val = preg_replace($pattern, $replacement, $val); // filter out the hex tags
         if ($val_before == $val) {
            // no replacements were made, so exit the loop
            $found = false;
         }
      }
   }
   return $val;
}
?>

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