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August 29, 2015 14:06
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Layer 7 Protection / Simple DDoS Protection
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| <?php | |
| $key = "La1az>T.}+w:uMoZ"; // CHANGE THIS STRING | |
| $code = md5($_SERVER['REMOTE_ADDR'].$_SERVER['HTTP_HOST'].$key); | |
| $cookie = isset($_COOKIE['l7code']) ? $_COOKIE['l7code'] : FALSE ; | |
| $ignored_uri = array(); | |
| $ignore = false; | |
| foreach($ignored_uri as $u){ | |
| if(preg_match("#".str_replace('*', '(.*)', $u)."#", $_SERVER['REQUEST_URI'])){ | |
| $ignore = true; | |
| break; | |
| } | |
| } | |
| if($cookie != $code && !$ignore){ | |
| $l7code = isset($_GET['l7code']) ? $_GET['l7code'] : FALSE ; | |
| $url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'].(empty($_GET)?'?':'&').'l7code='.$code; | |
| $script = <<<EOT | |
| <script> | |
| <!-- | |
| location.href = "$url"; | |
| //--> | |
| </script> | |
| EOT; | |
| if($l7code !== FALSE){ | |
| if($l7code == $code){ | |
| setcookie("l7code", $l7code, time()+86400, "/", ".".$_SERVER['HTTP_HOST']); | |
| $query = preg_replace('/(?|&)?l7code=[^&]+/', '', $_SERVER['REQUEST_URI']); | |
| header('Location: http://'.$_SERVER['HTTP_HOST'].($query=='/?'?'/':$query)); | |
| } else { | |
| $script = ""; | |
| } | |
| } | |
| echo <<<EOT | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title></title> | |
| <meta charset="utf-8"> | |
| <meta name="robots" content="noindex,nofollow"> | |
| <style> | |
| body { background: #eee; } | |
| noscript { width: 500px; text-align: center; margin-left: -250px; color: #999; margin-top: -60px; position: absolute; top: 50%; left: 50%; display: block; } | |
| noscript b { color: #333; } | |
| noscript img { margin-top: 10px; } | |
| </style> | |
| </head> | |
| <body> | |
| <noscript> | |
| This website requires <b>JavaScript</b> and <b>Cookies</b>.<br>You can turn it on in the settings of your web browser.<br> | |
| <img alt="" src="data:image/png;base64,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" alt=""> | |
| </noscript> | |
| $script | |
| </body> | |
| </html> | |
| EOT; | |
| die(); | |
| } |
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