复制代码 代码如下:
class sqlsafe {
private $getfilter = "'|(and|or)\b.+?(>|<|=|in|like)|\/\*.+?\*\/|<\s*script\b|\bEXEC\b|UNIOn.+?SELECt|UPDATE.+?SET|INSERT\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROp|TRUNCATE)\s+(TABLE|DATAbase)";
private $postfilter = "\b(and|or)\b.{1,6}?(=|>|<|\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)";
private $cookiefilter = "\b(and|or)\b.{1,6}?(=|>|<|\bin\b|\blike\b)|\/\*.+?\*\/|<\s*script\b|\bEXEC\b|UNIOn.+?SELECT|UPDATE.+?SET|INSERT\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\s+(TABLE|DATAbase)";
public function __construct() {
foreach($_GET as $key=>$value){$this->stopattack($key,$value,$this->getfilter);}
foreach($_POST as $key=>$value){$this->stopattack($key,$value,$this->postfilter);}
foreach($_cookie as $key=>$value){$this->stopattack($key,$value,$this->cookiefilter);}
}
public function stopattack($StrFiltKey, $StrFiltValue, $ArrFiltReq){
if(is_array($StrFiltValue))$StrFiltValue = implode($StrFiltValue);
if (preg_match("/".$ArrFiltReq."/is",$StrFiltValue) == 1){
$this->writeslog($_SERVER["REMOTE_ADDR"]." ".strftime("%Y-%m-%d %H:%M:%S")." ".$_SERVER["PHP_SELF"]." ".$_SERVER["REQUEST_METHOD"]." ".$StrFiltKey." ".$StrFiltValue);
showmsg('您提交的参数非法,系统已记录您的本次操作！','',0,1);
}
}
public function writeslog($log){
$log_path = CACHE_PATH.'logs'.DIRECTORY_SEPARATOR.'sql_log.txt';
$ts = fopen($log_path,"a+");
fputs($ts,$log."rn");
fclose($ts);
}
}
?>
