Add NAVIDROME_URL autofill, remove Navidrome scan trigger

- Frontend reads window.NS_SERVER_URL from config.js (injected at container start via docker-entrypoint.sh) and pre-fills the setup screen
- Removed triggerNaviScan from frontend and backend (Navidrome auto-scans on file change)
- Removed NAVIDROME_USER/PASS from backend and compose

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
HoneyandClaude Sonnet 4.6 committed 2026-04-25 16:44:38 +02:00
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/**
* NovaSonic Backend Server
* Downloads music via yt-dlp and saves directly into your Navidrome music library
*
* Requirements:
* - Node.js 18+
* - yt-dlp installed (https://github.com/yt-dlp/yt-dlp)
* - ffmpeg installed
*
* Install & run:
* npm install express cors
* node novasonic-server.js
*
* Or with Docker - see docker-compose.yml
*/
const express = require('express');
const cors = require('cors');
const { spawn, execSync } = require('child_process');
const path = require('path');
const fs = require('fs');
const https = require('https');
// ─── CONFIG ───────────────────────────────────────────────────────────────────
const CONFIG = {
port: process.env.PORT || 3700,
musicPath: process.env.MUSIC_PATH || '/music', // Navidrome music library folder
ytdlpBin: process.env.YTDLP_BIN || 'yt-dlp', // Path to yt-dlp binary
audioFmt: process.env.AUDIO_FMT || 'mp3', // mp3 | flac | opus | best
audioQuality: process.env.AUDIO_QUALITY || '0', // 0 = best
maxParallel: parseInt(process.env.MAX_PARALLEL || '2'),
};
// ─── INIT ─────────────────────────────────────────────────────────────────────
const app = express();
app.use(cors());
app.use(express.json());
// In-memory job store
const jobs = new Map();
// Check yt-dlp on startup
let ytdlpVersion = 'unknown';
try {
ytdlpVersion = execSync(`${CONFIG.ytdlpBin} --version`, { timeout: 5000 }).toString().trim();
console.log(`✅ yt-dlp ${ytdlpVersion} found`);
} catch {
console.warn('⚠️ yt-dlp not found! Install from https://github.com/yt-dlp/yt-dlp');
}
// Ensure music dir exists
if (!fs.existsSync(CONFIG.musicPath)) {
console.warn(`⚠️ Music path "${CONFIG.musicPath}" does not exist — creating it`);
fs.mkdirSync(CONFIG.musicPath, { recursive: true });
}
// ─── HELPERS ─────────────────────────────────────────────────────────────────
function sanitize(s) {
return (s || 'Unknown').replace(/[\\/:*?"<>|]/g, '_').trim().slice(0, 100);
}
function updateJob(id, update) {
const job = jobs.get(id);
if (job) jobs.set(id, { ...job, ...update, updatedAt: Date.now() });
}
function log(jobId, msg) {
const j = jobs.get(jobId);
if (j) jobs.set(jobId, { ...j, log: [...(j.log || []), msg], message: msg });
console.log(`[${jobId}] ${msg}`);
}
// Download a single track via yt-dlp, then stamp metadata via a dedicated ffmpeg pass.
// We do NOT use --postprocessor-args for metadata because yt-dlp splits that string on
// spaces internally, so any metadata value with a space (e.g. album name) gets corrupted.
// Instead: yt-dlp downloads, then we call ffmpeg ourselves with properly separated args.
async function downloadTrack({ jobId, artist, title, album, year, trackNum, artworkUrl, outputDir }) {
const safeArtist = sanitize(artist);
const safeAlbum = sanitize(album || 'Singles');
const dir = path.join(outputDir || CONFIG.musicPath, safeArtist, safeAlbum);
fs.mkdirSync(dir, { recursive: true });
const safeTitle = sanitize(title);
const outputTemplate = path.join(dir, `${safeTitle}.%(ext)s`);
const query = `${artist} - ${title} official audio`;
log(jobId, `\uD83D\uDD0D Suche: "${query}"`);
// Step 1: yt-dlp – download + extract audio + embed YT thumbnail
await new Promise((resolve, reject) => {
const args = [
`ytsearch1:${query}`,
'--extract-audio',
'--audio-format', CONFIG.audioFmt,
'--audio-quality', CONFIG.audioQuality,
'-o', outputTemplate,
'--embed-thumbnail',
'--convert-thumbnails', 'jpg',
'--no-playlist',
'--playlist-items', '1',
'--no-warnings',
'--newline',
];
const proc = spawn(CONFIG.ytdlpBin, args, { env: { ...process.env, PYTHONUNBUFFERED: '1' } });
let stderr = '', lastPct = '';
proc.stdout.on('data', d => {
d.toString().split('\n').filter(l => l.trim()).forEach(line => {
if (line.includes('%') && line === lastPct) return;
if (line.includes('%')) lastPct = line;
log(jobId, line.trim());
});
});
proc.stderr.on('data', d => {
stderr += d.toString();
d.toString().split('\n')
.filter(l => l.trim() && !l.startsWith('[debug]'))
.forEach(l => log(jobId, l.trim()));
});
proc.on('error', reject);
proc.on('close', code =>
code === 0 ? resolve() : reject(new Error(`yt-dlp code ${code}: ${stderr.slice(-300)}`))
);
});
// Step 2: find the audio file yt-dlp just wrote (newest audio file in dir)
const audioExts = ['mp3', 'flac', 'opus', 'm4a', 'ogg', 'wav'];
const audioFile = fs.readdirSync(dir)
.filter(f => audioExts.some(e => f.endsWith(`.${e}`)))
.map(f => path.join(dir, f))
.sort((a, b) => fs.statSync(b).mtimeMs - fs.statSync(a).mtimeMs)[0];
if (!audioFile) {
log(jobId, '\u26A0\uFE0F Keine Audio-Datei gefunden – \xFCberspringe Metadaten');
if (artworkUrl) downloadCoverArt(dir, artworkUrl);
return { success: true, dir };
}
log(jobId, `\uD83C\uDFF7 Schreibe Metadaten \u2192 ${path.basename(audioFile)}`);
// Step 3: ffmpeg – rewrite ID3 tags. Each -metadata is a separate arg so spaces are safe.
const fileExt = path.extname(audioFile);
const tmpFile = audioFile.slice(0, -fileExt.length) + '.metatmp' + fileExt;
await new Promise(resolve => {
const ffArgs = [
'-i', audioFile,
'-c', 'copy',
'-map_metadata', '0',
'-id3v2_version', '3',
'-metadata', `title=${title}`,
'-metadata', `artist=${artist}`,
'-metadata', `album_artist=${artist}`,
];
if (album) ffArgs.push('-metadata', `album=${album}`);
if (year) ffArgs.push('-metadata', `date=${String(year)}`);
if (trackNum) ffArgs.push('-metadata', `track=${String(trackNum)}`);
ffArgs.push(tmpFile, '-y');
const ff = spawn('ffmpeg', ffArgs);
let ffErr = '';
ff.stderr.on('data', d => ffErr += d.toString());
ff.on('error', () => resolve()); // ffmpeg not installed? skip gracefully
ff.on('close', code => {
if (code === 0 && fs.existsSync(tmpFile)) {
fs.renameSync(tmpFile, audioFile);
log(jobId, '\u2705 Metadaten geschrieben (title, artist, album, year, track)');
} else {
try { fs.unlinkSync(tmpFile); } catch {}
log(jobId, `\u26A0\uFE0F ffmpeg Metadaten-Schritt: code ${code}`);
if (ffErr) log(jobId, ffErr.slice(-200));
}
resolve();
});
});
// Step 4: save cover.jpg for Navidrome folder-art
if (artworkUrl) downloadCoverArt(dir, artworkUrl);
return { success: true, dir };
}
// Fallback: embed thumbnail via separate ffmpeg call (for formats where yt-dlp fails)
async function embedThumbnailFallback(dir, safeTitle, artworkUrl, jobId) {
if (!artworkUrl) return;
const coverPath = path.join(dir, 'cover.jpg');
if (!fs.existsSync(coverPath)) return;
const ext = CONFIG.audioFmt;
const files = fs.readdirSync(dir).filter(f => f.startsWith(safeTitle) && f.endsWith(`.${ext}`));
if (!files.length) return;
const audioFile = path.join(dir, files[0]);
const tmpFile = audioFile + '.tmp.' + ext;
return new Promise(resolve => {
const proc = spawn('ffmpeg', [
'-i', audioFile, '-i', coverPath,
'-map', '0', '-map', '1',
'-c', 'copy', '-id3v2_version', '3',
'-metadata:s:v', 'title=Album cover',
'-metadata:s:v', 'comment=Cover (front)',
tmpFile, '-y'
]);
proc.on('close', code => {
if (code === 0) {
fs.renameSync(tmpFile, audioFile);
log(jobId, '🖼 Cover eingebettet');
} else {
try { fs.unlinkSync(tmpFile); } catch {}
}
resolve();
});
proc.on('error', () => resolve());
});
}
// Download multiple tracks (album/artist)
async function downloadAlbumTracks({ jobId, artist, albumTitle, tracks, artworkUrl }) {
const total = tracks.length;
log(jobId, `📀 Album "${albumTitle}" – ${total} Tracks`);
let done = 0;
for (const track of tracks) {
try {
await downloadTrack({
jobId,
artist: track.artistName || artist,
title: track.trackName || track.title,
album: albumTitle,
year: track.releaseDate ? new Date(track.releaseDate).getFullYear() : undefined,
trackNum: track.trackNumber || undefined,
artworkUrl: artworkUrl || track.artworkUrl100,
outputDir: CONFIG.musicPath,
});
done++;
updateJob(jobId, { progress: Math.round((done / total) * 90) });
} catch (e) {
log(jobId, `⚠️ Fehler bei "${track.trackName}": ${e.message}`);
}
}
}
// Fetch iTunes album tracks
async function fetchItunesTracks(collectionId) {
return new Promise((resolve, reject) => {
const url = `https://itunes.apple.com/lookup?id=${collectionId}&entity=song`;
https.get(url, res => {
let data = '';
res.on('data', d => data += d);
res.on('end', () => {
try {
const parsed = JSON.parse(data);
resolve((parsed.results || []).filter(r => r.wrapperType === 'track'));
} catch { reject(new Error('iTunes API parse error')); }
});
}).on('error', reject);
});
}
// Save cover.jpg into folder for Navidrome folder-art detection
function downloadCoverArt(dir, url) {
if (!url) return;
try {
const dest = path.join(dir, 'cover.jpg');
if (fs.existsSync(dest)) return;
const file = fs.createWriteStream(dest);
const imgUrl = url.replace('100x100', '600x600').replace('60x60', '600x600');
https.get(imgUrl, res => res.pipe(file)).on('error', () => {});
} catch {}
}
// Active download queue
let activeDownloads = 0;
const downloadQueue = [];
function processQueue() {
if (activeDownloads >= CONFIG.maxParallel || downloadQueue.length === 0) return;
const task = downloadQueue.shift();
activeDownloads++;
task().finally(() => { activeDownloads--; processQueue(); });
}
function enqueue(task) {
downloadQueue.push(task);
processQueue();
}
// ─── ROUTES ──────────────────────────────────────────────────────────────────
// Health check
app.get('/api/health', (req, res) => {
res.json({
status: 'ok',
ytdlpVersion,
musicPath: CONFIG.musicPath,
audioFormat: CONFIG.audioFmt,
activeJobs: activeDownloads,
queueLength: downloadQueue.length,
});
});
// Submit download job
app.post('/api/download', async (req, res) => {
const { type, artist, title, album, artworkUrl, collectionId, jobId: clientJobId } = req.body;
if (!artist || !title) {
return res.status(400).json({ error: 'artist and title required' });
}
const jobId = clientJobId || ('job_' + Date.now());
jobs.set(jobId, {
id: jobId, type, artist, title, album,
status: 'queued', progress: 0, message: 'In Warteschlange…',
log: [], createdAt: Date.now(), updatedAt: Date.now(),
});
res.json({ jobId, status: 'queued' });
// Enqueue the actual work
enqueue(async () => {
updateJob(jobId, { status: 'running', progress: 5, message: 'Gestartet…' });
try {
if (type === 'track') {
await downloadTrack({ jobId, artist, title, album, artworkUrl });
updateJob(jobId, { status: 'done', progress: 100, message: 'Fertig!' });
} else if (type === 'album') {
let tracks = [];
if (collectionId) {
log(jobId, '📋 Lade Track-Liste von iTunes…');
tracks = await fetchItunesTracks(collectionId);
}
if (tracks.length) {
await downloadAlbumTracks({ jobId, artist, albumTitle: album || title, tracks, artworkUrl });
} else {
// Fallback: download full album search
await downloadTrack({ jobId, artist, title: `${album || title} full album`, album, artworkUrl });
}
updateJob(jobId, { status: 'done', progress: 100, message: `Album "${album || title}" fertig!` });
} else if (type === 'artist') {
log(jobId, `🎤 Künstler-Download: ${artist}`);
// Search for artist's top albums via iTunes
const artistData = await new Promise((resolve, reject) => {
https.get(`https://itunes.apple.com/search?term=${encodeURIComponent(artist)}&media=music&entity=album&limit=10&country=de`, res => {
let d = '';res.on('data', c=>d+=c);res.on('end',()=>{try{resolve(JSON.parse(d).results||[])}catch{reject(new Error('parse'))}});
}).on('error',reject);
});
const artistAlbums = artistData.filter(a => a.artistName?.toLowerCase() === artist.toLowerCase()).slice(0, 10);
const total = artistAlbums.length || 1;
log(jobId, `📀 ${total} Alben gefunden`);
let done = 0;
for (const alb of artistAlbums) {
const tracks = await fetchItunesTracks(alb.collectionId).catch(() => []);
if (tracks.length) {
await downloadAlbumTracks({ jobId, artist, albumTitle: alb.collectionName, tracks, artworkUrl: alb.artworkUrl100 });
}
done++;
updateJob(jobId, { progress: Math.round((done / total) * 95) });
}
updateJob(jobId, { status: 'done', progress: 100, message: `Künstler "${artist}" vollständig heruntergeladen!` });
}
} catch (err) {
console.error(`[${jobId}] Error:`, err.message);
updateJob(jobId, { status: 'error', message: err.message });
}
});
});
// Job status
app.get('/api/status/:jobId', (req, res) => {
const job = jobs.get(req.params.jobId);
if (!job) return res.status(404).json({ error: 'Job not found' });
res.json(job);
});
// List all jobs
app.get('/api/jobs', (req, res) => {
res.json(Array.from(jobs.values()).sort((a, b) => b.createdAt - a.createdAt).slice(0, 50));
});
// ─── START ────────────────────────────────────────────────────────────────────
app.listen(CONFIG.port, () => {
console.log(`\n🎵 NovaSonic Backend running on port ${CONFIG.port}`);
console.log(` Music folder : ${CONFIG.musicPath}`);
console.log(` Audio format : ${CONFIG.audioFmt} (quality ${CONFIG.audioQuality})`);
console.log(` yt-dlp : ${ytdlpVersion}`);
console.log('');
});