我找到了这个脚本
我已经把它变成了一个函数。
在大多数情况下工作得很好。有时我会看到一个错误：
[<a href='function.unlink'>function.unlink</a>]: No such file or directory
排队：
else if ($diff>3600) { unlink($path); } // 如果第一次请求超过 1 小时，新的 ip 文件
显然某些 IP 文件由于某种原因被删除了？
我试图找到逻辑错误，但我一点也不擅长。也许有人可以帮忙。
功能：
function ht_request_limiter() {
if (!isset($_SERVER['REMOTE_ADDR'])) { return; } // Maybe its impossible, however we check it first
if (empty($_SERVER['REMOTE_ADDR'])) { return; } // Maybe its impossible, however we check it first
$path = '/home/czivbaby/valuemarket.gr/ip-sec/'; // I use a function to validate a path first and return if false...
$path = $path.$_SERVER['REMOTE_ADDR'].'.txt'; // Real file path (filename = <ip>.txt)
$now = time(); // Current timestamp
if (!file_exists($path)) { // If first request or new request after 1 hour / 24 hour ban, new file with <timestamp>|<counter>
if ($handle = fopen($path, 'w+')) {
if (fwrite($handle, $now.'|0')) { chmod($path, 0700); } // Chmod to prevent access via web
fclose($handle);
}
}
else if (($content = file_get_contents($path)) !== false) { // Load existing file
$content = explode('|',$content); // Create paraset [0] -> timestamp [1] -> counter
$diff = (int)$now-(int)$content[0]; // Time difference in seconds from first request to now
if ($content[1] == 'ban') { // If [1] = ban we check if it was less than 24 hours and die if so
if ($diff>86400) { unlink($path); } // 24 hours in seconds.. if more delete ip file
else {
header("HTTP/1.1 503 Service Unavailable");
exit("Your IP is banned for 24 hours, because of too many requests.");
}
}
else if ($diff>3600) { unlink($path); } // If first request was more than 1 hour, new ip file
else {
$current = ((int)$content[1])+1; // Counter + 1
if ($current>200) { // We check rpm (request per minute) after 200 request to get a good ~value
$rpm = ($current/($diff/60));
if ($rpm>10) { // If there was more than 10 rpm -> ban (if you have a request all 5 secs. you will be banned after ~17 minutes)
if ($handle = fopen($path, 'w+')) {
fwrite($handle, $content[0].'|ban');
fclose($handle);
// Maybe you like to log the ip once -> die after next request
}
return;
}
}
if ($handle = fopen($path, 'w+')) { // else write counter
fwrite($handle, $content[0].'|'.$current .'');
fclose($handle);
}
}
}
}