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feat(bunny-cdn): refactor CDN hostname resolution and update asset URLs for improved flexibility

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Yusuf İpek
2026-02-26 11:53:03 +03:00
parent 3522c3da30
commit 4ea6099508
15 changed files with 192 additions and 98 deletions
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app/api/versions/[versionId]/download/route.ts
+27 -13
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@@ -4,6 +4,7 @@ import { apiErrors, successResponse, withCacheControl } from '@/lib/api-response
import { rateLimit } from '@/lib/rate-limit';
import { validateShareLinkAccess } from '@/lib/share-links';
import { getShareSessionFromRequest } from '@/lib/share-session';
import { resolveServerBunnyCdnHostname } from '@/lib/bunny-cdn';
import { NextRequest } from 'next/server';
import { DownloadEgressSource } from '@prisma/client';
@@ -17,7 +18,6 @@ type BunnyDownloadSource = {
const BUNNY_DOWNLOAD_FALLBACK_HEIGHTS = [2160, 1440, 1080, 720, 480, 360, 240];
const BUNNY_ALLOWED_QUALITIES = new Set(BUNNY_DOWNLOAD_FALLBACK_HEIGHTS);
const DEFAULT_BUNNY_CDN_HOSTNAME = 'vz-965f4f4a-fc1.b-cdn.net';
const BUNNY_MAX_PROBE_CANDIDATES = 4;
const BUNNY_SOURCE_RESOLUTION_CACHE_TTL_MS = 60 * 1000;
const BUNNY_REMOTE_FETCH_TIMEOUT_MS = 8 * 1000;
@@ -65,20 +65,14 @@ function buildContentDisposition(fileNameWithExt: string): string {
return `attachment; filename="${asciiFallback}"; filename*=UTF-8''${encoded}`;
}
function resolveBunnyCdnHostname(): string {
const raw = process.env.BUNNY_CDN_URL || process.env.NEXT_PUBLIC_BUNNY_CDN_URL;
if (!raw) return DEFAULT_BUNNY_CDN_HOSTNAME;
try {
const url = new URL(raw);
return url.hostname || DEFAULT_BUNNY_CDN_HOSTNAME;
} catch {
return raw.replace(/^https?:\/\//, '').replace(/\/+$/, '') || DEFAULT_BUNNY_CDN_HOSTNAME;
}
function resolveBunnyCdnHostname(): string | null {
return resolveServerBunnyCdnHostname();
}
function buildBunnyOriginalUrl(videoId: string): string {
return `https://${resolveBunnyCdnHostname()}/${videoId}/original`;
const hostname = resolveBunnyCdnHostname();
if (!hostname) return '';
return `https://${hostname}/${videoId}/original`;
}
function buildBunnySourceCacheKey(
@@ -140,6 +134,7 @@ async function isRemoteFileAvailable(url: string): Promise<boolean> {
async function resolveHighestBunnyMp4Url(videoId: string): Promise<string> {
const hostname = resolveBunnyCdnHostname();
if (!hostname) return '';
const playlistUrl = `https://${hostname}/${videoId}/playlist.m3u8`;
let playlistHeights: number[] = [];
@@ -172,6 +167,7 @@ async function resolveHighestBunnyMp4Url(videoId: string): Promise<string> {
async function resolveBunnyOriginalSource(videoId: string): Promise<BunnyDownloadSource | null> {
const originalUrl = buildBunnyOriginalUrl(videoId);
if (!originalUrl) return null;
if (await isRemoteFileAvailable(originalUrl)) {
return {
sourceType: 'original',
@@ -184,8 +180,17 @@ async function resolveBunnyOriginalSource(videoId: string): Promise<BunnyDownloa
}
async function resolveBunnyCompressedSource(videoId: string, requestedQuality: number | null): Promise<BunnyDownloadSource> {
const hostname = resolveBunnyCdnHostname();
if (!hostname) {
return {
sourceType: 'compressed',
quality: null,
url: '',
};
}
if (typeof requestedQuality === 'number' && Number.isFinite(requestedQuality) && requestedQuality > 0) {
const requestedUrl = `https://${resolveBunnyCdnHostname()}/${videoId}/play_${requestedQuality}p.mp4`;
const requestedUrl = `https://${hostname}/${videoId}/play_${requestedQuality}p.mp4`;
if (await isRemoteFileAvailable(requestedUrl)) {
return {
sourceType: 'compressed',
@@ -196,6 +201,13 @@ async function resolveBunnyCompressedSource(videoId: string, requestedQuality: n
}
const fallbackUrl = await resolveHighestBunnyMp4Url(videoId);
if (!fallbackUrl) {
return {
sourceType: 'compressed',
quality: null,
url: '',
};
}
return {
sourceType: 'compressed',
@@ -209,6 +221,8 @@ async function resolveBunnyDownloadSource(
requestedQuality: number | null,
sourcePreference: BunnyDownloadSourcePreference
): Promise<BunnyDownloadSource | null> {
if (!resolveBunnyCdnHostname()) return null;
const now = Date.now();
const cacheKey = buildBunnySourceCacheKey(videoId, requestedQuality, sourcePreference);
const cached = getCachedBunnyDownloadSource(cacheKey, now);