[+] File server

.gitignore

@@ -27,4 +27,5 @@ public/assets/fonts/cache
 .idea
 static/audio
 temp_audio
-.stfolder
+.stfolder
+storage/

deploy/docker-compose.yml

@@ -6,6 +6,8 @@ services:
       dockerfile: deploy/Dockerfile.web
     ports:
       - "127.0.0.1:3000:3000"
+    volumes:
+      - ./data/storage:/app/storage
     environment:
       - ORIGIN=http://localhost:3000
       - MONGO_URL=mongodb://cat:meow@db:27017/amaoke?authSource=admin

src/lib/server/songs.ts

@@ -8,10 +8,10 @@ import type { ObjectId } from 'mongodb'
 import '../ext'
 import { promises as fs } from 'fs'
 import path from 'path'
-import { waitFor } from '../utils'
 import { separateSong } from './separator'
 
-const CACHE_DIR = path.resolve('static/audio')
+const CACHE_DIR = path.resolve('storage/audio')
+export const getAudioFile = (songId: string, filename: string) => path.join(CACHE_DIR, songId, filename)
 
 const neCookie = async () => (await dbs.serverProps
     .findOne({ name: 'global_settings' }))?.netease_login_cookie

src/routes/audio/[songId]/[file]/+server.ts

@@ -0,0 +1,30 @@
+import { getAudioFile } from '$lib/server/songs';
+import { error } from '@sveltejs/kit';
+import fs from 'fs/promises';
+import path from 'path';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async ({ params }) => {
+    const { songId, file } = params;
+    const filePath = getAudioFile(songId, file);
+
+    try {
+        await fs.access(filePath);
+    } catch {
+        throw error(404, 'File not found');
+    }
+
+    const ext = path.extname(file).toLowerCase();
+    let contentType = 'application/octet-stream';
+    if (ext === '.mp3') contentType = 'audio/mpeg';
+    if (ext === '.opus') contentType = 'audio/ogg';
+
+    const buffer = await fs.readFile(filePath);
+
+    return new Response(buffer, {
+        headers: {
+            'Content-Type': contentType,
+            'Cache-Control': 'public, max-age=31536000'
+        }
+    });
+};