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Implement lazy-cleanup for expired invoices with deadline-based deletion

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This commit is contained in:
Alexander Schmidt
2026-03-26 11:01:32 +01:00
parent c4e3f3cd15
commit ee0d0d4124
5 changed files with 50 additions and 8 deletions
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4
api/shorten.php
View File

@@ -24,6 +24,7 @@ $dbFile = __DIR__ . '/../data/urls.json';
$rawInput = file_get_contents('php://input');
$input = is_string($rawInput) ? json_decode($rawInput, true) : null;
$hash = is_array($input) && isset($input['hash']) && is_string($input['hash']) ? $input['hash'] : '';
$expiryTs = is_array($input) && isset($input['expiry_ts']) ? intval($input['expiry_ts']) : 0;
if (empty($hash) || strlen($hash) > 500 || !preg_match('/^[a-zA-Z0-9%+_=&.-]{1,500}$/', $hash)) {
http_response_code(400);
@@ -69,6 +70,9 @@ while (isset($urls[$code])) {
$signature = hash_hmac('sha256', $hash, $secret);
$urls[$code] = ['h' => $hash, 's' => $signature];
if ($expiryTs > 0) {
$urls[$code]['e'] = $expiryTs;
}
write_json_locked($fp, $urls);

30
api/verify.php
View File

@@ -31,16 +31,29 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
$decodedProofs = is_string($rawProofs) ? json_decode($rawProofs, true) : [];
$proofs = is_array($decodedProofs) ? $decodedProofs : [];
if (isset($proofs[$code])) {
$response = ['verified' => true];
$proofEntry = $proofs[$code];
if (is_array($proofEntry)) {
foreach ($proofEntry as $k => $v) {
if (is_string($k)) {
$response[$k] = $v;
$proofExpiry = is_array($proofEntry) ? intval($proofEntry['e'] ?? 0) : 0;
// Check if proof has expired (lazy cleanup)
if ($proofExpiry > 0 && time() > $proofExpiry) {
unset($proofs[$code]);
[$fp, $allProofs] = read_json_locked($dbFile);
if (isset($allProofs[$code])) {
unset($allProofs[$code]);
write_json_locked($fp, $allProofs);
}
echo json_encode(['verified' => false]);
} else {
$response = ['verified' => true];
if (is_array($proofEntry)) {
foreach ($proofEntry as $k => $v) {
if (is_string($k)) {
$response[$k] = $v;
}
}
}
echo json_encode($response);
}
echo json_encode($response);
} else {
echo json_encode(['verified' => false]);
}
@@ -132,6 +145,11 @@ $proofs[$code] = [
'verified_at' => time()
];
// Copy expiry timestamp from URL if it exists
if (isset($urls[$code]) && is_array($urls[$code]) && isset($urls[$code]['e']) && $urls[$code]['e'] > 0) {
$proofs[$code]['e'] = $urls[$code]['e'];
}
write_json_locked($fp, $proofs);
echo json_encode(['ok' => true]);