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<?php
/**
* Guestbook recent comments — JSON proxy for homepage inline display.
* Fetches from guestbook.sillylaird.ca/api.php (server-to-server, no CORS).
*/
require_once __DIR__ . '/../partials/proxy_helpers.php';
header('Content-Type: application/json; charset=utf-8');
header('Cache-Control: public, max-age=90');
$limit = min(max((int)($_GET['limit'] ?? 8), 1), 25);
$cacheDir = sys_get_temp_dir() . '/sillylaird_guestbook';
if (!is_dir($cacheDir)) {
@mkdir($cacheDir, 0700, true);
}
$cacheFile = $cacheDir . '/recent_' . $limit . '.json';
$freshTtl = 90;
$staleTtl = 3600;
$emit = static function (string $json, int $code = 200): void {
http_response_code($code);
echo $json;
exit;
};
if (is_file($cacheFile) && (time() - filemtime($cacheFile)) < $freshTtl) {
$emit((string)file_get_contents($cacheFile));
}
if (!proxy_rate_limit('guestbook_recent', 40, 60)) {
if (is_file($cacheFile) && (time() - filemtime($cacheFile)) < $staleTtl) {
$emit((string)file_get_contents($cacheFile));
}
$emit(json_encode(['error' => true, 'message' => 'rate limited']), 429);
}
$url = 'https://guestbook.sillylaird.ca/api.php?limit=' . $limit;
$ctx = stream_context_create([
'http' => [
'timeout' => 8,
'user_agent' => 'SillyLaird-GuestbookProxy/1.0',
'ignore_errors' => true,
],
'ssl' => [
'verify_peer' => true,
'verify_peer_name' => true,
],
]);
$raw = @file_get_contents($url, false, $ctx);
if ($raw === false) {
if (is_file($cacheFile)) {
$emit((string)file_get_contents($cacheFile));
}
$emit(json_encode(['error' => true, 'message' => 'upstream unavailable']), 502);
}
$data = json_decode($raw, true);
if (!is_array($data) || !isset($data['entries']) || !is_array($data['entries'])) {
if (is_file($cacheFile)) {
$emit((string)file_get_contents($cacheFile));
}
$emit(json_encode(['error' => true, 'message' => 'invalid upstream response']), 502);
}
$out = json_encode([
'entries' => array_slice($data['entries'], 0, $limit),
'total' => (int)($data['total'] ?? count($data['entries'])),
'fetched' => time(),
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
$tmp = $cacheFile . '.tmp';
if (@file_put_contents($tmp, $out, LOCK_EX) !== false) {
@rename($tmp, $cacheFile);
}
$emit($out);
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