servnest/fn/ns.php
2023-04-27 22:18:03 +02:00

74 lines
1.9 KiB
PHP

<?php
define('SOA_VALUES', [
'ttl' => 10800,
'email' => CONF['ns']['public_soa_email'],
'refresh' => 10800,
'retry' => 3600,
'expire' => 3628800,
'negative' => 10800,
]);
define('MIN_TTL', 300);
define('DEFAULT_TTL', 10800);
define('MAX_TTL', 1728000);
define('ALLOWED_TYPES', ['AAAA', 'A', 'TXT', 'SRV', 'MX', 'SVCB', 'HTTPS', 'NS', 'DS', 'CAA', 'CNAME', 'DNAME', 'LOC', 'SSHFP', 'TLSA']);
define('ZONE_MAX_CHARACTERS', 10000);
function nsCommonRequirements() {
return (isset($_POST['action'])
AND isset($_POST['zone'])
AND isset($_POST['ttl-value'])
AND isset($_POST['ttl-multiplier'])
AND isset($_SESSION['id'])
);
}
function nsParseCommonRequirements() {
nsCheckZonePossession($_POST['zone']);
if (($_POST['subdomain'] === '') OR ($_POST['subdomain'] === '@'))
$values['domain'] = $_POST['zone'];
else
$values['domain'] = formatAbsoluteDomain(formatEndWithDot($_POST['subdomain']) . $_POST['zone']);
$values['ttl'] = $_POST['ttl-value'] * $_POST['ttl-multiplier'];
if ($values['ttl'] < MIN_TTL)
output(403, sprintf(_('TTLs shorter than %s seconds are forbidden.'), MIN_TTL));
if ($values['ttl'] > MAX_TTL)
output(403, sprintf(_('TTLs longer than %s seconds are forbidden.'), MAX_TTL));
return $values;
}
function nsListUserZones() {
if (isset($_SESSION['id']))
return query('select', 'zones', ['username' => $_SESSION['id']], 'zone');
return [];
}
function nsCheckZonePossession($zone) {
checkAbsoluteDomainFormat($zone);
if (!in_array($zone, nsListUserZones(), true))
output(403, 'You don\'t own this zone on the name server.');
}
function nsDeleteZone($zone) {
// Delete zone data
exec(CONF['dns']['knotc_path'] . ' --force zone-purge ' . $zone, result_code: $code);
if ($code !== 0)
output(500, 'Failed to purge zone data.');
// Remove from Knot configuration
knotcConfExec(["unset 'zone[$zone]'"]);
// Remove from database
query('delete', 'zones', [
'zone' => $zone,
'username' => $_SESSION['id'],
]);
}