@ -6,7 +6,6 @@ namespace App\Service;
use App\Entity\User; use App\Entity\User;
use App\Enum\KindsEnum; use App\Enum\KindsEnum;
use nostriphant\NIP19\Bech32;
use Psr\Log\LoggerInterface; use Psr\Log\LoggerInterface;
use swentel\nostr\Event\Event as NostrWireEvent; use swentel\nostr\Event\Event as NostrWireEvent;
use swentel\nostr\Key\Key; use swentel\nostr\Key\Key;
@ -83,13 +82,8 @@ final readonly class CommentReplyService
return ['ok' => false, 'error' => 'Tags must include a/A for this article', 'code' => 400]; return ['ok' => false, 'error' => 'Tags must include a/A for this article', 'code' => 400];
} }
if (!$this->contentBlurbReferencesParent( if (!$this->tagsReferenceParent($wire->getTags(), $expectedCoordinate, $parentKind, $parentId)) {
$wire->getContent(), return ['ok' => false, 'error' => 'Tags must reference the selected parent (a/A for article or e/E for comment)', 'code' => 400];
$expectedCoordinate,
$parentKind,
$parentId
)) {
return ['ok' => false, 'error' => 'Reply must start with a quote line (>) linking the parent via nostr:nevent1 / naddr1 (reply blurb)', 'code' => 400];
} }
$rawParentAuthor = isset($payload['parent_author_pubkey']) & & \is_string($payload['parent_author_pubkey']) $rawParentAuthor = isset($payload['parent_author_pubkey']) & & \is_string($payload['parent_author_pubkey'])
@ -142,53 +136,42 @@ final readonly class CommentReplyService
return false; return false;
} }
private function contentBlurbReferencesParent( /**
string $content, * @param array< int , mixed > $tags
*/
private function tagsReferenceParent(
array $tags,
string $articleCoordinate, string $articleCoordinate,
int $parentKind, int $parentKind,
string $parentIdHex string $parentIdHex
): bool { ): bool {
$head = \strlen($content) > 800 ? substr($content, 0, 800) : $content; if (\in_array($parentKind, [KindsEnum::LONGFORM->value, KindsEnum::LONGFORM_DRAFT->value], true)) {
if (!str_contains($head, "\n\n")) { foreach ($tags as $row) {
return false; if (!\is_array($row) || ($row[0] ?? null) === null) {
} continue;
[$blurb] = explode("\n\n", $head, 2);
$blurb = trim($blurb);
if ($blurb === '' || !str_starts_with($blurb, '>')) {
return false;
} }
if (!preg_match('/nostr:(nevent1[0-9a-z]+|naddr1[0-9a-z]+|note1[0-9a-z]+)/i', $blurb, $m)) { $n = (string) $row[0];
return false; if (($n === 'a' || $n === 'A') & & ($row[1] ?? '') === $articleCoordinate) {
return true;
} }
try {
$decoded = new Bech32($m[1]);
} catch (\Throwable) {
return false;
} }
if ($decoded->type === 'nevent') {
$id = $decoded->data->id ?? null;
return \is_string($id) & & 64 === \strlen($id) & & ctype_xdigit($id) & & hash_equals($parentIdHex, $id) ; return false;
} }
if ($decoded->type === 'note' ) { if ($parentKind === KindsEnum::COMMENTS->value ) {
$id = $decoded->data->identifier ?? null; foreach ($tags as $row) {
if (!\is_array($row) || ($row[0] ?? null) === null) {
return \is_string($id) & & 64 === \strlen($id) & & ctype_xdigit($id) & & hash_equals($parentIdHex, $id) ; continue ;
} }
if ($decoded->type === 'naddr') { $n = (string) $row[0];
$d = $decoded->data; if (($n === 'e' || $n === 'E') & & \is_string($row[1] ?? null) & & hash_equals($parentIdHex, (string) $row[1])) {
$coord = $d->kind.':'.$d->pubkey.':'.$d->identifier; return true;
if (!\in_array($parentKind, [KindsEnum::LONGFORM->value, KindsEnum::LONGFORM_DRAFT->value], true)) {
return false;
} }
if (!hash_equals($articleCoordinate, $coord)) {
return false;
} }
$zero = str_repeat('0', 64);
return hash_equals($parentIdHex, $zero) ; return false ;
} }
return fals e; return tru e;
} }
} }
