80 lines
2.8 KiB
PHP
80 lines
2.8 KiB
PHP
<?php
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namespace App\Console\Commands;
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use App\Models\Instance;
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use App\Services\Domains\DomainVerifier;
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use Illuminate\Console\Command;
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/**
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* Re-reads every custom domain's proof, nightly.
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*
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* Asked for in exactly these words: the token must be checked again and again,
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* so that nobody puts it in, passes the check, and takes it straight back out.
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* At night, because a domain that is withdrawn is a domain that stops being
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* served, and that is not a thing to do to somebody at eleven in the morning.
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*
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* Three consecutive misses before a verified domain is withdrawn. One failed
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* lookup is a nameserver having a bad minute; taking a working Nextcloud
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* offline over a hiccup would be far worse than the hole it closes.
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*/
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class VerifyCustomDomains extends Command
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{
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protected $signature = 'clupilot:verify-domains {--instance= : one instance uuid, for checking on demand}';
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protected $description = 'Re-read the DNS proof for every custom domain and withdraw the ones that lost it';
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public function handle(DomainVerifier $verifier): int
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{
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$query = Instance::query()->whereNotNull('custom_domain')->whereNotNull('domain_token');
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if ($uuid = $this->option('instance')) {
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$query->where('uuid', $uuid);
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}
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$checked = 0;
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$withdrawn = 0;
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foreach ($query->cursor() as $instance) {
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$checked++;
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$present = $verifier->proofPresent($instance);
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if ($present) {
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$instance->forceFill([
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'domain_verified_at' => $instance->domain_verified_at ?? now(),
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'domain_checked_at' => now(),
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'domain_error' => null,
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'domain_failures' => 0,
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])->save();
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continue;
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}
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$failures = $instance->domain_failures + 1;
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// Withdrawal clears verified_at, which is the single flag every
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// consumer reads. Nothing else is deleted: the domain and its token
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// stay on the row, so the customer sees what is wrong and can put
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// the record back rather than starting over.
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$withdraw = $instance->domain_verified_at !== null
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&& $failures >= DomainVerifier::FAILURES_BEFORE_WITHDRAWAL;
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$instance->forceFill([
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'domain_checked_at' => now(),
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'domain_error' => 'missing_txt',
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'domain_failures' => $failures,
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'domain_verified_at' => $withdraw ? null : $instance->domain_verified_at,
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])->save();
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if ($withdraw) {
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$withdrawn++;
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$this->warn("Withdrew {$instance->custom_domain}: proof missing on {$failures} consecutive checks.");
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}
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}
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$this->info("Checked {$checked} domain(s), withdrew {$withdrawn}.");
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return self::SUCCESS;
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}
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}
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