118 lines
3.3 KiB
PHP
118 lines
3.3 KiB
PHP
<?php declare(strict_types=1);
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const NS_SOA_VALUES = [
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'ttl' => 10800,
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'email' => CONF['ns']['public_soa_email'],
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'refresh' => 10800,
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'retry' => 3600,
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'expire' => 3628800,
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'negative' => 10800,
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];
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const NS_MIN_TTL = 300;
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const NS_DEFAULT_TTL = 10800;
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const NS_MAX_TTL = 1728000;
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const NS_ALLOWED_TYPES = ['AAAA', 'A', 'TXT', 'SRV', 'MX', 'SSHFP', 'TLSA', 'NS', 'DS', 'CSYNC', 'CAA', 'CNAME', 'DNAME', 'SVCB', 'HTTPS', 'LOC'];
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const NS_TEXTAREA_MAX_CHARACTERS = 10000;
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const NS_SYNC_TTL = 10800;
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function nsParseCommonRequirements(): array {
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nsCheckZonePossession($_POST['zone']);
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if (($_POST['subdomain'] === '') OR ($_POST['subdomain'] === '@'))
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$values['domain'] = $_POST['zone'];
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else
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$values['domain'] = formatAbsoluteDomain(formatEndWithDot($_POST['subdomain']) . $_POST['zone']);
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$values['ttl'] = intval($_POST['ttl-value'] * $_POST['ttl-multiplier']);
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if ($values['ttl'] < NS_MIN_TTL)
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output(403, sprintf(_('TTLs shorter than %s seconds are forbidden.'), NS_MIN_TTL));
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if ($values['ttl'] > NS_MAX_TTL)
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output(403, sprintf(_('TTLs longer than %s seconds are forbidden.'), NS_MAX_TTL));
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return $values;
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}
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function nsListUserZones(): array {
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if (isset($_SESSION['id']))
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return query('select', 'zones', ['username' => $_SESSION['id']], ['zone']);
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return [];
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}
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function nsCheckZonePossession(string $zone): void {
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checkAbsoluteDomainFormat($zone);
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if (!in_array($zone, nsListUserZones(), true))
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output(403, 'You don\'t own this zone on the name server.');
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}
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function nsDeleteZone(string $zone, string $user_id): void {
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// Remove from Knot configuration
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knotcConfExec([['conf-unset', 'zone[' . $zone . ']']]);
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// Remove Knot zone file
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if (unlink(CONF['ns']['knot_zones_path'] . '/' . $zone . 'zone') !== true)
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output(500, 'Failed to remove Knot zone file.');
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// Remove Knot related data
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exescape([
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CONF['dns']['knotc_path'],
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'--blocking',
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'--timeout',
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'3',
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'--force',
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'--',
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'zone-purge',
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$zone,
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'+orphan',
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], result_code: $code);
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if ($code !== 0)
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output(500, 'Failed to purge zone data.');
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query('delete', 'ns-syncs', ['destination' => $zone]);
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// Remove from database
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query('delete', 'zones', [
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'zone' => $zone,
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'username' => $user_id,
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]);
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}
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function nsSync(string $source, string $destination): void {
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$zone_raw = file_get_contents(CONF['ns']['knot_zones_path'] . '/' . $destination . 'zone');
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if ($zone_raw === false)
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output(403, 'Unable to read zone file.');
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foreach (['AAAA', 'A', 'CAA'] as $type) {
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// Get source/distant records
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$results = kdig(name: $source, type: $type);
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if ($results['AD'] !== 1)
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throw new NoDnssecException($source . ' not DNSSEC-signed.');
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$source_records = array_column($results['answerRRs'] ?? [], 'rdata' . $type);
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// Get destination/local records
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$dest_records = array_column(parseZoneFile($zone_raw, [$type], $destination, false), 3);
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// Add source records that are not yet in destination
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foreach (array_diff($source_records, $dest_records) as $value_to_add)
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knotcZoneExec($destination, [
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$destination,
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NS_SYNC_TTL,
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$type,
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$value_to_add,
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], 'add');
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// Delete destination records that are not part of source anymore
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foreach (array_diff($dest_records, $source_records) as $value_to_delete)
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knotcZoneExec($destination, [
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$destination,
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$type,
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$value_to_delete,
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], 'delete');
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}
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}
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