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<?php
function die_http($error, $message, $extra_message) {
header('Status: ' . $error . ' ' . $message);
print 'Error ' . $error . ': ' . $message . "\n";
if ($extra_message != '')
print "<br>\n" . $extra_message . "\n";
die();
}
$pin = popen('dig -p5353 @127.0.0.1 ddns.eckner.net AXFR', 'r');
if (!$pin)
die_http(500, 'Internal Server Error', 'Failed to get Zone.');
$found = false;
$axfr = array();
while (($line = fgets($pin)) !== false) {
$line = trim($line);
if (substr($line, 0, 1) == ';' || $line == '')
continue;
$line = preg_split("/[\s]+/", $line);
if ($line[0] == 'pool32.ddns.eckner.net.')
continue;
if ($line[2] != 'IN')
continue;
if ($line[3] == 'A')
$axfr[$line[0]][$line[3]] = "IPv4";
if ($line[3] == 'AAAA')
$axfr[$line[0]][$line[3]] = "IPv6";
if ($_SERVER['REMOTE_ADDR'] == $line[4])
$found = true;
}
pclose($pin);
if (! $found)
die_http(403, 'Forbidden', 'You are not known to ddns.');
$hosts = explode(
"\n",
trim(
shell_exec(
'cut -d" " -f2 < /srv/http/vhosts/eckner.net/ddns/tokens'
)
)
);
$filters = explode(
"\n",
shell_exec(
'cut -d" " -f1 < /srv/http/vhosts/eckner.net/ddns/ip-filters'
) . "v4\nv6"
);
sort($filters);
sort($hosts);
function print_existence($prefix, $host) {
global $axfr;
if (!array_key_exists($host . '.ddns.eckner.net.', $axfr)) {
print $prefix . "<font color=\"ff0000\">\n";
print $prefix . " Nö\n";
print $prefix . "</font>\n";
return;
}
print $prefix . "<font color=\"00ff00\">\n";
print $prefix . " " . implode(' & ', $axfr[$host . '.ddns.eckner.net.']) . "\n";
print $prefix . "</font>\n";
}
print "<html>\n";
print " <head>\n";
print " <title>\n";
print " ddns status\n";
print " </title>\n";
print " </head>\n";
print " <body>\n";
print " <table>\n";
print " <tr>\n";
print " <th>\n";
print " Host\n";
print " </th>\n";
print " <th>\n";
print " \n";
print " </th>\n";
foreach ($filters as $filter) {
print " <th>\n";
print " " . $filter . "\n";
print " </th>\n";
}
print " </tr>\n";
foreach ($hosts as $host) {
print " <tr>\n";
print " <td>\n";
print " " . $host . "\n";
print " </td>\n";
print " <td>\n";
print_existence(' ', $host);
print " </td>\n";
foreach ($filters as $filter) {
print " <td>\n";
print_existence(' ', $host . '.' . $filter);
print " </td>\n";
}
print " </tr>\n";
}
print " </table>\n";
print " </body>\n";
print "</html>";
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