复制代码 代码如下,//查询禁止IP
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废话不多说,上代码
复制代码 代码如下:
//查询禁止IP $ip =$_SERVER['REMOTE_ADDR'];
$fileht=".htaccess2";
if(!file_exists($fileht))
 file_put_contents($fileht,"");
$filehtarr=@file($fileht);
if(in_array($ip."rn",$filehtarr))
 die("Warning:"."
"."Your IP address are forbided by some reason, IF you have any question Pls emill to shop@mydalle.com!");
//加入禁止IP $time=time();
$fileforbid="log/forbidchk.dat";
if(file_exists($fileforbid)) {
 if($time-filemtime($fileforbid)>60)
  unlink($fileforbid);
 else {
  $fileforbidarr=@file($fileforbid);
  if($ip==substr($fileforbidarr[0],0,strlen($ip))) {
   if($time-substr($fileforbidarr[1],0,strlen($time))>600)
    unlink($fileforbid);
   elseif($fileforbidarr[2]>600) {
    file_put_contents($fileht,$ip."rn",FILE_APPEND);
    unlink($fileforbid);
   } else {
    $fileforbidarr[2]++;
    file_put_contents($fileforbid,$fileforbidarr);
   }
  }
 }
}
//防刷新 $str="";
$file="log/ipdate.dat";
if(!file_exists("log")&&!is_dir("log"))
 mkdir("log",0777);
if(!file_exists($file))
 file_put_contents($file,"");
$allowTime = 120;//防刷新时间
$allowNum=10;//防刷新次数
$uri=$_SERVER['REQUEST_URI'];
$checkip=md5($ip);
$checkuri=md5($uri);
$yesno=true;
$ipdate=@file($file);
foreach($ipdate as $k=>$v) {
 $iptem=substr($v,0,32);
 $uritem=substr($v,32,32);
 $timetem=substr($v,64,10);
 $numtem=substr($v,74);
 if($time-$timetem  if($iptem!=$checkip)
   $str.=$v;
  else {
   $yesno=false;
   if($uritem!=$checkuri)
    $str.=$iptem.$checkuri.$time."1rn";
   elseif($numtem    $str.=$iptem.$uritem.$timetem.($numtem+1)."rn";
   else {
    if(!file_exists($fileforbid)) {
     $addforbidarr=array($ip."rn",time()."rn",1);
     file_put_contents($fileforbid,$addforbidarr);
    }
    file_put_contents("log/forbided_ip.log",$ip."--".date("Y-m-d H:i:s",time())."--".$uri."rn",FILE_APPEND);
    $timepass=$timetem+$allowTime-$time;
    die("Warning:"."
"."Sorry,you are forbided by refreshing frequently too much, Pls wait for ".$timepass." seconds to continue!");
   }
  }
 }
}
if($yesno) $str.=$checkip.$checkuri.$time."1rn";
file_put_contents($file,$str);
?>

/*
*网站防ip攻击代码(anti-ip attack code website)2010-11-20,ver2.0
*mydalle.com anti-refresh mechanism
*design by www.111cn.net
*/

今天我开发了下面的代码,算是大功初成,一天拦截了15个IP,服务器负载正常。
复制代码 代码如下:
//查询禁止IP
$ip =$_SERVER['REMOTE_ADDR'];
$fileht=".htaccess2";
if(!file_exists($fileht))file_put_contents($fileht,"");
$filehtarr=@file($fileht);
if(in_array($ip."rn",$filehtarr))die("Warning:"."
"."Your IP address are forbided by some reason, IF you have any question Pls emill to shop@mydalle.com!");

<?php
//查询禁止ip
$ip =$_server['remote_addr'];
$fileht=".htaccess2";
if(!file_exists($fileht))file_put_contents($fileht,"");
$filehtarr=@file($fileht);
if(in_array($ip."rn",$filehtarr))die("warning:"."<br>"."your ip address are forbided by mydalle.com anti-refresh mechanism, if you have any question pls emill to shop@mydalle.com!<br>(mydalle.com anti-refresh mechanism is to enable users to have a good shipping services, but there maybe some inevitable network problems in your ip address, so that you can mail to us to solve.)");

//加入禁止ip
$time=time();
$fileforbid="log/forbidchk.dat";
if(file_exists($fileforbid))
{ if($time-filemtime($fileforbid)>30)unlink($fileforbid);
else{
$fileforbidarr=@file($fileforbid);
if($ip==substr($fileforbidarr[0],0,strlen($ip)))
{
if($time-substr($fileforbidarr[1],0,strlen($time))>120)unlink($fileforbid);
elseif($fileforbidarr[2]>120){file_put_contents($fileht,$ip."rn",file_append);unlink($fileforbid);}
else{$fileforbidarr[2]++;file_put_contents($fileforbid,$fileforbidarr);}
}
}
}
//防刷新
$str="";
$file="log/ipdate.dat";
if(!file_exists("log")&&!is_dir("log"))mkdir("log",0777);
if(!file_exists($file))file_put_contents($file,"");
$allowtime = 60;//防刷新时间
$allownum=5;//防刷新次数
$uri=$_server['request_uri'];
$checkip=md5($ip);
$checkuri=md5($uri);
$yesno=true;
$ipdate=@file($file);
foreach($ipdate as $k=>$v)
{ $iptem=substr($v,0,32);
$uritem=substr($v,32,32);
$timetem=substr($v,64,10);
$numtem=substr($v,74);
if($time-$timetem<$allowtime){
if($iptem!=$checkip)$str.=$v;
else{
$yesno=false;
if($uritem!=$checkuri)$str.=$iptem.$checkuri.$time."1rn";
elseif($numtem<$allownum)$str.=$iptem.$uritem.$timetem.($numtem+1)."rn";
else
{
if(!file_exists($fileforbid)){$addforbidarr=array($ip."rn",time()."rn",1);file_put_contents($fileforbid,$addforbidarr);}
file_put_contents("log/forbided_ip.log",$ip."--".date("y-m-d h:i:s",time())."--".$uri."rn",file_append);
$timepass=$timetem+$allowtime-$time;
die("warning:"."<br>"."pls don't refresh too frequently, and wait for ".$timepass." seconds to continue, if not your ip address will be forbided automatic by mydalle.com anti-refresh mechanism!<br>(mydalle.com anti-refresh mechanism is to enable users to have a good shipping services, but there maybe some inevitable network problems in your ip address, so that you can mail to us to solve.)");
}
}
}
}
if($yesno) $str.=$checkip.$checkuri.$time."1rn";
file_put_contents($file,$str);
?>

//加入禁止IP
$time=time();
$fileforbid="log/forbidchk.dat";
if(file_exists($fileforbid))
{ if($time-filemtime($fileforbid)>60)unlink($fileforbid);
else{
$fileforbidarr=@file($fileforbid);
if($ip==substr($fileforbidarr[0],0,strlen($ip)))
{
if($time-substr($fileforbidarr[1],0,strlen($time))>600)unlink($fileforbid);
elseif($fileforbidarr[2]>600){file_put_contents($fileht,$ip."rn",FILE_APPEND);unlink($fileforbid);}
else{$fileforbidarr[2]++;file_put_contents($fileforbid,$fileforbidarr);}
}
}
}
//防刷新
$str="";
$file="log/ipdate.dat";
if(!file_exists("log")&&!is_dir("log"))mkdir("log",0777);
if(!file_exists($file))file_put_contents($file,"");
$allowTime = 120;//防刷新时间
$allowNum=10;//防刷新次数
$uri=$_SERVER['REQUEST_URI'];
$checkip=md5($ip);
$checkuri=md5($uri);
$yesno=true;
$ipdate=@file($file);
foreach($ipdate as $k=>$v)
{ $iptem=substr($v,0,32);
$uritem=substr($v,32,32);
$timetem=substr($v,64,10);
$numtem=substr($v,74);
if($time-$timetemif($iptem!=$checkip)$str.=$v;
else{
$yesno=false;
if($uritem!=$checkuri)$str.=$iptem.$checkuri.$time."1rn";
elseif($numtemelse
{
if(!file_exists($fileforbid)){$addforbidarr=array($ip."rn",time()."rn",1);file_put_contents($fileforbid,$addforbidarr);}
file_put_contents("log/forbided_ip.log",$ip."--".date("Y-m-d H:i:s",time())."--".$uri."rn",FILE_APPEND);
$timepass=$timetem+$allowTime-$time;
die("Warning:"."
"."Sorry,you are forbided by refreshing frequently too much, Pls wait for ".$timepass." seconds to continue!");
}
}
}
}
if($yesno) $str.=$checkip.$checkuri.$time."1rn";
file_put_contents($file,$str);
?>

把程序include进要进行的php文件头部。
程序首先判断IP是否在禁止列表,如果在则退出;
否则,如果IP在监控列表,10分钟内点击超过600次则加入禁止列表。
如果没有超过时间和次数则次数加1,同时,监控IP是否对同一页面频繁操作。
由于是机器刷频,所以程序不用session判断。
还有就是更新的时候,不能用独占处理文件。
使用伪静态存储IP也会出错。
这个程序还有变化和改进的余地的,大家也可以参考QQ农场里的降级原理,基本上农场也是按照这个原理开发的吧。

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