ddns.php: update aliases, too

1 files changed, 33 insertions, 0 deletions

diff --git a/ddns.php b/ddns.php
index 977e47c..afa1bfc 100644
--- a/ddns.php
+++ b/ddns.php
@@ -191,6 +191,39 @@
       "send\n";
   }
 
+  $aliasess = preg_grep('@ ' . $domain . '\b@', file('/srv/http/vhosts/eckner.net/ddns/aliases'));
+  if (count($aliasess)) {
+    $pin = popen(
+      'dig @127.0.0.1 ddns.eckner.net AXFR' .
+      ' | sed "s/^\([^;.[:space:]]\+\)\.ddns\.eckner\.net\.\s\+\([0-9]\+\)\s\+IN\s\+\(AAAA\|A\)\s\+\(\S\+\)$/\1 \2 \3 \4/;t;d"',
+      'r');
+    if ($pin === FALSE)
+      die_http(500, 'Internal Server Error', 'Failed to get Zone.');
+    while (!feof($pin))
+      $zone_file .= fread($pin, 1024);
+    $zone_file = explode("\n", trim($zone_file));
+    pclose($pin);
+    foreach($aliasess as $aliases) {
+      $aliases = explode(' ', trim($aliases));
+      $alias = array_shift($aliases);
+      $updateCommand .=
+        "zone ddns.eckner.net.\n" .
+        "prereq yxrrset " . $alias . ".ddns.eckner.net.\n" .
+        "update delete " . $alias . ".ddns.eckner.net.\n" .
+        "send\n";
+      foreach($aliases as $representative) {
+        foreach($zone_file as $zone_file_entry) {
+          if (preg_match('/^'.$representative.' ([0-9]+) (AAAA|A) (\S+)$/', $zone_file_entry, $match)) {
+            $updateCommand .=
+              "update add " . $alias . ".ddns.eckner.net. " . $match[1] . " IN " . $match[2] . " " . $match[3] . "\n";
+          }
+        }
+      }
+      $updateCommand .=
+        "send\n";
+    }
+  }
+
   // actually do something
   $pin = popen('nsupdate -l', 'w');
   if ($pin === FALSE)