3f294340b2
- UpdateDnsRecords Action: controller method now one-liner, all DNS logic in Action with activity logging and edit lock. - Prometheus metrics at /v1/metrics: chain_height, alias_count, claims_pending, dns_tickets, gateways_live. Grafana-ready. - ValidateJsonRequest middleware: enforces application/json on POST, 64KB body size limit. Applied to all /v1/* API routes. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
91 lines
2.5 KiB
PHP
91 lines
2.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Mod\Names\Actions;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Validation\ValidationException;
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use Mod\Chain\Services\DaemonRpc;
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use Mod\Chain\Services\WalletRpc;
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use Mod\Names\Models\DnsTicket;
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use Mod\Names\Models\NameActivity;
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/**
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* Update DNS records for a .lthn name on the sidechain.
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*
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* $ticket = UpdateDnsRecords::run('mybrand', [
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* ['type' => 'A', 'host' => '@', 'value' => '1.2.3.4'],
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* ]);
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*/
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class UpdateDnsRecords
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{
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public function __construct(
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private readonly DaemonRpc $rpc,
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private readonly WalletRpc $wallet,
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) {}
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public function handle(string $name, array $records): DnsTicket
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{
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$name = strtolower(trim($name));
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// Edit lock
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$editLock = "dns_edit_lock:{$name}";
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if (Cache::has($editLock)) {
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throw ValidationException::withMessages([
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'name' => 'A DNS update for this name is already pending.',
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]);
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}
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$alias = $this->rpc->getAliasByName($name);
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if (! $alias) {
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throw ValidationException::withMessages([
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'name' => 'Name not registered.',
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]);
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}
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$address = $alias['address'] ?? '';
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$comment = $this->buildComment($records);
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$result = $this->wallet->updateAlias($name, $address, $comment);
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if (isset($result['tx_id'])) {
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Cache::put($editLock, true, 300);
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$ticket = DnsTicket::open($name, $records, $result['tx_id'], $address, $comment);
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} else {
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$ticket = DnsTicket::open($name, $records, null, $address, $comment);
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}
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NameActivity::log($name, 'dns_updated', [
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'ticket_id' => $ticket->ticket_id,
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'records' => $records,
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], request()?->ip());
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return $ticket;
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}
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private function buildComment(array $records): string
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{
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$dnsEntries = [];
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foreach ($records as $record) {
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$type = $record['type'] ?? 'A';
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$host = $record['host'] ?? '@';
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$value = $record['value'] ?? '';
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if ($value) {
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$dnsEntries[] = "{$type}:{$host}:{$value}";
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}
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}
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$comment = 'v=lthn1;type=user';
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if ($dnsEntries) {
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$comment .= ';dns=' . implode('|', $dnsEntries);
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}
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return $comment;
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}
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public static function run(string $name, array $records): DnsTicket
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{
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return app(static::class)->handle($name, $records);
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}
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}
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