// functions/podcasts/[id].js
const PODCASTINDEX_API_BASE = 'https://api.podcastindex.org/api/1.0';
const PODCAST_API_KEY = 'YU5HMSDYBQQVYDF6QN4P';
const PODCAST_API_SECRET = '8hCvpjSL7T$S7^5ftnf5MhqQwYUYVjM^fmUL3Ld$';
async function sha1(str) {
const encoder = new TextEncoder();
const data = encoder.encode(str);
const hashBuffer = await crypto.subtle.digest('SHA-1', data);
const hashArray = Array.from(new Uint8Array(hashBuffer));
return hashArray.map((b) => b.toString(16).padStart(2, '0')).join('');
}
async function getAuthHeaders() {
const apiHeaderTime = Math.floor(Date.now() / 1000).toString();
const combined = PODCAST_API_KEY + PODCAST_API_SECRET + apiHeaderTime;
const authHeader = await sha1(combined);
return {
'User-Agent': 'MonochromeMusic/1.0',
'X-Auth-Key': PODCAST_API_KEY,
'X-Auth-Date': apiHeaderTime,
Authorization: authHeader,
};
}
export async function onRequest(context) {
const { request, params, env } = context;
const userAgent = request.headers.get('User-Agent') || '';
const isBot = /discordbot|twitterbot|facebookexternalhit|bingbot|googlebot|slurp|whatsapp|pinterest|slackbot|telegrambot|linkedinbot|mastodon|signal|snapchat|redditbot|skypeuripreview|viberbot|linebot|embedly|quora|outbrain|tumblr|duckduckbot|yandexbot|rogerbot|showyoubot|kakaotalk|naverbot|seznambot|mediapartners|adsbot|petalbot|applebot|ia_archiver/i.test(
userAgent
);
const podcastId = params.id;
if (isBot && podcastId) {
try {
const headers = await getAuthHeaders();
const response = await fetch(`${PODCASTINDEX_API_BASE}/podcasts/byfeedid?id=${podcastId}&pretty`, {
method: 'GET',
headers,
});
if (!response.ok) throw new Error(`PodcastIndex error: ${response.status}`);
const data = await response.json();
const feed = data.status === 'true' && data.feed ? data.feed : null;
if (feed && feed.title) {
const title = feed.title;
const author = feed.author || feed.ownerName || '';
const episodeCount = feed.episodeCount || 0;
const rawDescription = feed.description || '';
const description = author
? `Podcast by ${author} • ${episodeCount} Episodes\nListen on Monochrome`
: `Podcast • ${episodeCount} Episodes\nListen on Monochrome`;
const imageUrl = feed.image || feed.artwork || 'https://monochrome.tf/assets/appicon.png';
const pageUrl = new URL(request.url).href;
const metaHtml = `
${title}
${title}
${description}
`;
return new Response(metaHtml, { headers: { 'content-type': 'text/html;charset=UTF-8' } });
}
} catch (error) {
console.error(`Error for podcast ${podcastId}:`, error);
}
}
const url = new URL(request.url);
url.pathname = '/';
return env.ASSETS.fetch(new Request(url, request));
}