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-rw-r--r--dns.php42
1 files changed, 42 insertions, 0 deletions
diff --git a/dns.php b/dns.php
index ddae571..b184a95 100644
--- a/dns.php
+++ b/dns.php
@@ -6,6 +6,36 @@ error_reporting(E_ALL);
define("ZONEROOT", "/var/bind/pri/");
define("ZONESUFFIX", ".zone");
+function incrementserial($zonetext) {
+ $serial = array("");
+ $newserial = "";
+
+ // See if we can detect a serial number
+ if (preg_match("/\(($|^|[[:space:]])*[0-9]{10}([[:space:]]|;|$|^)+/", $zonetext, $matches)) {;
+ // Only bother with the first match
+ preg_match("/[0-9]{10}/", $matches[0], $serial);
+
+ $today = date("Ymd00");
+
+ if ($serial[0] < $today) {
+ $newserial = $today;
+ } else {
+ $newserial = $serial[0] + 1;
+ }
+
+ // The effort below is gone to to avoid replacing more than one match with our *one* new serial number
+
+ // Prepare a string to replace the string we found the serial in
+ $rebuiltstring = str_replace($serial[0], $newserial, $matches[0]);
+ // Escape special regex characters since we need to use preg_replace below to limit to one replacement
+ $escapedmatch = preg_quote($matches[0]);
+
+ $zonetext = preg_replace("/" . $escapedmatch . "/", $rebuiltstring, $zonetext, 1);
+ }
+
+ return array($zonetext, $serial[0], $newserial);
+}
+
function sshrun($command) {
$host = "misc.tghost.co.uk";
$user = "bladns.net";
@@ -48,6 +78,10 @@ function writezone($domain, $password, $zonetext) {
die("somehow the password went bad");
}
+ if (isset($_POST['increment'])) {
+ $zonetext = incrementserial($zonetext)[0];
+ }
+
$zonetext = str_replace('$', '\$', $zonetext);
sshrun("echo -e \"$zonetext\" > " . ZONEROOT . "$domain" . ZONESUFFIX);
@@ -67,6 +101,14 @@ if (isset($_POST['domain']) && isset($_POST['password']) && !isset($_POST['zonet
?>
<form action="dns.php" method="post">
<textarea rows="24" cols="80" name="zonetext" autofocus><?php echo $zonefile; ?></textarea><br>
+<?php
+ $arrincrement = incrementserial($zonefile);
+ if ($arrincrement[0] != $zonefile) {
+?>
+ <input type="checkbox" name="increment" checked>Automatically increment <?php echo $arrincrement[1] . " to " . $arrincrement[2]; ?>?</input><br>
+<?php
+ }
+?>
<input type="hidden" name="domain" value="<?php echo $_POST['domain']; ?>">
<input type="hidden" name="password" value="<?php echo $password; ?>">
<input type="submit" value="Update zonefile"><br>