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<?php
header('Content-Type: application/json');
header('Cache-Control: public, max-age=3600');
header('Access-Control-Allow-Origin: *');
$rss_url = 'https://anchor.fm/s/e8438774/podcast/rss';
$limit = max(1, min(20, intval($_GET['limit'] ?? 6)));
$ctx = stream_context_create(['http' => [
'timeout' => 8,
'user_agent' => 'Mozilla/5.0 (compatible; podcast-proxy/1.0)',
]]);
$xml = @file_get_contents($rss_url, false, $ctx);
if ($xml === false) {
http_response_code(502);
echo json_encode(['error' => 'could not fetch feed']);
exit;
}
$feed = @simplexml_load_string($xml);
if (!$feed) {
http_response_code(502);
echo json_encode(['error' => 'could not parse feed']);
exit;
}
$ns_itunes = 'http://www.itunes.com/dtds/podcast-1.0.dtd';
// artwork from channel-level itunes:image
$channel = $feed->channel;
$itunes_ch = $channel->children($ns_itunes);
$art = (string)($itunes_ch->image->attributes()['href'] ?? '');
$episodes = [];
foreach ($channel->item as $item) {
if (count($episodes) >= $limit) break;
$itunes = $item->children($ns_itunes);
$duration_raw = (string)($itunes->duration ?? '');
// normalize duration to h:mm or Xm
if (strpos($duration_raw, ':') !== false) {
$parts = array_map('intval', explode(':', $duration_raw));
if (count($parts) === 3) {
[$h, $m, $s] = $parts;
$duration = $h > 0 ? "{$h}:" . str_pad($m, 2, '0', STR_PAD_LEFT) : "{$m}m";
} else {
[$m, $s] = $parts;
$duration = "{$m}m";
}
} elseif (is_numeric($duration_raw)) {
$secs = intval($duration_raw);
$h = intdiv($secs, 3600);
$m = intdiv($secs % 3600, 60);
$duration = $h > 0 ? "{$h}:" . str_pad($m, 2, '0', STR_PAD_LEFT) : "{$m}m";
} else {
$duration = '';
}
$link = (string)($item->link ?? $item->enclosure->attributes()['url'] ?? '#');
$episodes[] = [
'title' => (string)$item->title,
'url' => $link,
'duration' => $duration,
];
}
echo json_encode(['art' => $art, 'episodes' => $episodes]);
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