WooYun.org

public function so()
	{
            $data='';$data_content='';
            $fid = $this->security->xss_clean($this->uri->segment(3));   //方式
            $key = $this->security->xss_clean($this->input->get_post('key', TRUE));   //关键字
            $page  = intval($this->input->get('p', TRUE));   //页数
            if($page==0) $page=1;
            $key=$this->CsdjSkins->rurlencode($key);
            if($fid=='zm' && empty($key)){
                 $key=$this->security->xss_clean($this->uri->segment(4)); 
            }
	    $cache_id ="dance_so_".$fid."_".$key."_".$page;

function rurlencode($string) {
               $key=rawurldecode($string);
               if($this->is_utf8($key)){
                    $key=iconv('UTF-8', 'GB2312', $key);
               }
             return $key;
         }

function Safe($arr){
		//
		$getfilter = "'|<[^>]*?>|^\\+\/v(8|9)|\\b(and|or)\\b.+?(>|<|=|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
		$postfilter = "^\\+\/v(8|9)|\\b(and|or)\\b.{1,6}?(=|>|<|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|<\\s*img\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
		if (preg_match ( "/" . $getfilter . "/is", $arr ) == 1) { //GET
			$arr=''; 
		}
		if (preg_match ( "/" . $postfilter . "/is", $arr ) == 1) { //POST
			$arr=''; 
		}
                
		return $this->chkSql($arr);
	}
	function chkSql($str,$flag=false){
		$checkStr="<|>|%|%27|'|''|;|*|onfocusin|autofocus|and|exec|dbcc|alter|drop|insert|select|update|delete|count|master|truncate|char|declare|where|set|declare|mid|chr";
		if (empty($str)){ return ""; }
		$arr=explode("|",$checkStr);
		
		for ($i=0;$i<count($arr);$i++){
			if (strpos(strtolower($str),$arr[$i]) >0){
				if ($flag==false){
					switch ($arr[$i]){
						case "<":$re="&lt;";break;
						case ">":$re="&gt;";break;
						case "'":
						case "\"":$re="&quot;";break;
						case ";":$re="";break;
						default:$re="";break;
					}
					$str=str_replace($arr[$i],$re,$str);
				} else{
					exit("ϵͳʾ,аǷַ");
				}
			}
		}
		return $str;