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fix logic for cdn caching

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chrisk325 2026-03-06 01:25:51 +05:30 committed by GitHub
parent 94fc9b639f
commit ec9c0db867
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1 changed files with 18 additions and 2 deletions
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20
src/services/trailerService.ts
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@ -14,8 +14,8 @@ interface CacheEntry {
}
export class TrailerService {
// YouTube CDN URLs expire ~6h; cache for 5h
private static readonly CACHE_TTL_MS = 5 * 60 * 60 * 1000;
// Cache for 3 minutes — just enough to avoid re-extracting on quick re-renders
private static readonly CACHE_TTL_MS = 3 * 60 * 1000;
private static urlCache = new Map<string, CacheEntry>();
// ---------------------------------------------------------------------------
@ -137,6 +137,22 @@ export class TrailerService {
this.urlCache.delete(key);
return null;
}
// Check the URL's own CDN expiry — googlevideo.com URLs carry an `expire`
// param (Unix timestamp). Treat as stale if it expires within 2 minutes.
if (entry.url.includes('googlevideo.com')) {
try {
const u = new URL(entry.url);
const expire = u.searchParams.get('expire');
if (expire) {
const expiresAt = parseInt(expire, 10) * 1000;
if (Date.now() > expiresAt - 2 * 60 * 1000) {
logger.info('TrailerService', `Cached URL expired or expiring soon — re-extracting`);
this.urlCache.delete(key);
return null;
}
}
} catch { /* ignore */ }
}
return entry.url;
}