59 lines
2 KiB
PHP
59 lines
2 KiB
PHP
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<?php
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$explode = explode('.', $_GET['host']);
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$host = array_shift($explode);
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$zone = implode('.', $explode);
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$ip = ($_GET['ip']) ? $_GET['ip'] : $_SERVER['REMOTE_ADDR'];
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function reload_zone($zone) {
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exec('/usr/sbin/rndc reload ' . $zone . ' 2>&1', $rndc);
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return $rndc;
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}
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function valid_ip($ip) {
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return (@gethostbyaddr($ip)) ? true : false;
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}
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function change_zonefile($zone, $host, $ip) {
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if(file_exists('/var/lib/named/' . $zone . '.hosts')) {
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$fp = fopen('/var/lib/named/' . $zone . '.hosts', 'r');
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$found = false; $update = false;
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while($line = fgets($fp, 1024)) {
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$buffer = rtrim($line);
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if(preg_match("/^" . $host . "/", $buffer)) {
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preg_match("/([0-9]{2,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3})/", $buffer, $act_ip);
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$update = ($act_ip[1] == $ip) ? false : true;
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$buffer = preg_replace("/([0-9]{2,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3})/", $ip, $buffer);
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$found = true;
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}
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if(preg_match("/[\t]?[0-9]{10}$/", $buffer)) {
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$buffer = preg_replace("/[0-9]{8}([0-9]{2})$/e", date("Ymd") . "$1 + 1", $buffer);
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}
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$zone_file .= $buffer . "\n";
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}
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fclose($fp);
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if($update) {
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$fp = fopen('/var/lib/named/' . $zone . '.hosts', 'w');
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fputs($fp, $zone_file);
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fclose($fp);
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reload_zone($zone);
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}
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return ($found) ? true : false;
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} else {
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return false;
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}
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}
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header("Content-Type: text/plain");
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if($host && $zone) {
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if(valid_ip($ip)) {
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echo (change_zonefile($zone, $host, $ip)) ? 'OK' : 'NOK';
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} else {
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echo 'NOK';
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}
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} else {
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echo 'NOK';
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}
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?>
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