improvement to soundcloud's get client function, add aac support to tidal

.gitignore

@@ -7,7 +7,7 @@ node_modules
 .env
 .env.*
 !.env.example
-/test.js
+/test.*
 /tmp
 /run.js
 

src/streamers/soundcloud/constants.ts

@@ -12,4 +12,3 @@ export const DEFAULT_HEADERS = {
 	'User-Agent':
 		'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'
 }
-export const SC_VERSION = '1712837702'

src/streamers/soundcloud/main.ts

@@ -1,5 +1,5 @@
 import { fetch, HeadersInit } from 'undici'
-import { DEFAULT_HEADERS, SC_VERSION } from './constants.js'
+import { DEFAULT_HEADERS } from './constants.js'
 import {
 	ItemType,
 	Streamer,
@@ -44,6 +44,17 @@ interface SoundcloudTranscoding {
 	quality: string
 }
 
+interface SoundCloudSubscriptionData {
+	active_subscription: {
+		state: string
+		subscription_period_started_at: string
+		expires_at: string
+		recurring: boolean
+		trial: boolean
+		is_eligible: boolean
+	} | null
+}
+
 export default class Soundcloud implements Streamer {
 	hostnames = ['soundcloud.com', 'm.soundcloud.com', 'www.soundcloud.com']
 	testData = {
@@ -110,7 +121,7 @@ export default class Soundcloud implements Streamer {
 		).text()
 
 		const client = {
-			version: SC_VERSION,
+			version: response.split(`__sc_version="`)[1].split(`"</script>`)[0],
 			anonId: response.split(`[{"hydratable":"anonymousId","data":"`)[1].split(`"`)[0],
 			id: await fetchKey(response)
 		}
@@ -135,7 +146,7 @@ export default class Soundcloud implements Streamer {
 	#formatURL(og: string, client: ScClient): string {
 		const parsed = new URL(og)
 
-		if (client.anonId) parsed.searchParams.append('user_id', client.anonId)
+		if (client.anonId && !this.oauthToken) parsed.searchParams.append('user_id', client.anonId)
 		if (client.id) parsed.searchParams.append('client_id', client.id)
 		if (client.version) parsed.searchParams.append('app_version', client.version)
 		if (!parsed.searchParams.get('app_locale')) parsed.searchParams.append('app_locale', 'en')
@@ -245,14 +256,25 @@ export default class Soundcloud implements Streamer {
 		return { ...api, id }
 	}
 	async getAccountInfo(): Promise<StreamerAccount> {
-		const track = <TrackGetByUrlResponse>(
-			await this.getByUrl('https://soundcloud.com/ween/polka-dot-tail')
-		)
-		const stream = await track.getStream()
-		if (stream.mimeType.startsWith('audio/mp4')) {
-			stream.stream.unpipe()
-			return { valid: true, premium: true, explicit: true }
-		} else return { valid: true, premium: false, explicit: true }
+		const client = this.client || (await this.#getClient())
+		const subscriptionQuery = <SoundCloudSubscriptionData>await (
+			await fetch(
+				this.#formatURL(
+					`https://api-v2.soundcloud.com/payments/quotations/consumer-subscription`,
+					client
+				),
+				{
+					method: 'get',
+					headers: headers(this.oauthToken)
+				}
+			)
+		).json()
+
+		return {
+			valid: true,
+			premium: subscriptionQuery?.active_subscription?.state == 'active',
+			explicit: true
+		}
 	}
 }
 

src/streamers/tidal/main.ts

@@ -1,5 +1,7 @@
 import { fetch } from 'undici'
 import { spawn } from 'child_process'
+import os from 'node:os'
+import fs from 'node:fs'
 import {
 	ItemType,
 	GetByUrlResponse,
@@ -329,6 +331,7 @@ export default class Tidal implements Streamer {
 			manifestMimeType: string
 			audioQuality: 'LOW' | 'HIGH' | 'LOSSLESS' | 'HI_RES' | 'HI_RES_LOSSLESS'
 		}
+
 		const playbackInfoResponse = <PlaybackInfo>await this.#get(
 			`tracks/${trackId}/playbackinfopostpaywall/v4`,
 			{
@@ -339,9 +342,6 @@ export default class Tidal implements Streamer {
 			}
 		)
 
-		if (playbackInfoResponse.audioQuality == 'HIGH' || playbackInfoResponse.audioQuality == 'LOW')
-			throw new Error('This ripper is incompatible with AAC codecs formats at the moment.')
-
 		const manifestStr = Buffer.from(playbackInfoResponse.manifest, 'base64').toString('utf-8')
 		interface Manifest {
 			mimeType: string
@@ -359,41 +359,103 @@ export default class Tidal implements Streamer {
 		}
 
 		const trackUrls = parseMpd(manifestStr)
+		const args = await this.#getFfArgs(playbackInfoResponse.audioQuality)
 
-		const ffmpegProc = spawn('ffmpeg', [
-			'-hide_banner',
-			'-loglevel',
-			'error',
-			'-i',
-			'-',
-			'-c:a',
-			'copy',
-			'-f',
-			'flac',
-			'-'
-		])
+		const ffmpegProc = spawn('ffmpeg', args)
+		switch (playbackInfoResponse.audioQuality) {
+			case 'LOW':
+			case 'HIGH': {
+				return new Promise(function (resolve, reject) {
+					const stream = new Stream.Readable({
+						// eslint-disable-next-line @typescript-eslint/no-empty-function
+						read() {}
+					})
+					async function load() {
+						for (const url of trackUrls) {
+							const resp = await fetch(url)
+							if (!resp.body) throw new Error('Response has no body')
+							for await (const chunk of resp.body) {
+								stream.push(chunk)
+							}
+						}
+						stream.push(null)
+					}
+					stream.pipe(ffmpegProc.stdin)
 
-		const stream = new Stream.Readable({
-			// eslint-disable-next-line @typescript-eslint/no-empty-function
-			read() {}
-		})
-		async function load() {
-			for (const url of trackUrls) {
-				const resp = await fetch(url)
-				if (!resp.body) throw new Error('Response has no body')
-				for await (const chunk of resp.body) {
-					stream.push(chunk)
+					let err: string
+
+					ffmpegProc.stderr.on('data', function (data) {
+						err = data.toString()
+					})
+
+					load()
+
+					ffmpegProc.once('exit', async function (code) {
+						const folder = args[args.length - 1]
+							.split('/')
+							.slice(0, args[args.length - 1].split('/').length - 1)
+							.join('/')
+						if (code == 0)
+							resolve({
+								mimeType: 'audio/mp4',
+								stream: fs.createReadStream(args[args.length - 1]).once('end', async function () {
+									await fs.promises.rm(folder, { recursive: true })
+								})
+							})
+						else {
+							reject(`FFMPEG error: ${err}` || 'FFMPEG could not handle the file.')
+							await fs.promises.rm(folder, { recursive: true })
+						}
+					})
+				})
+			}
+
+			default: {
+				const stream = new Stream.Readable({
+					// eslint-disable-next-line @typescript-eslint/no-empty-function
+					read() {}
+				})
+
+				// eslint-disable-next-line no-inner-declarations
+				async function load() {
+					for (const url of trackUrls) {
+						const resp = await fetch(url)
+						if (!resp.body) throw new Error('Response has no body')
+						for await (const chunk of resp.body) {
+							stream.push(chunk)
+						}
+					}
+					stream.push(null)
+				}
+				stream.pipe(ffmpegProc.stdin)
+				load()
+
+				return {
+					mimeType: 'audio/flac',
+					stream: ffmpegProc.stdout
 				}
 			}
-			stream.push(null)
 		}
-		stream.pipe(ffmpegProc.stdin)
-		ffmpegProc.stderr.pipe(process.stderr)
-		load()
-
-		return {
-			mimeType: 'audio/flac',
-			stream: ffmpegProc.stdout
+	}
+	async #getFfArgs(audioQuality: 'LOW' | 'HIGH' | 'LOSSLESS' | 'HI_RES' | 'HI_RES_LOSSLESS') {
+		switch (audioQuality) {
+			case 'LOW':
+			case 'HIGH':
+				// eslint-disable-next-line no-case-declarations
+				const folder = await fs.promises.mkdtemp(`${os.tmpdir()}/lucida`)
+				return [
+					'-hide_banner',
+					'-loglevel',
+					'error',
+					'-i',
+					'-',
+					'-c:a',
+					'copy',
+					'-y',
+					`${folder}/data.m4a`
+				]
+			default:
+				return ['-hide_banner', '-loglevel', 'error', '-i', '-', '-c:a', 'copy', '-f', 'flac', '-']
 		}
 	}
 	#getUrlParts(url: string): ['artist' | 'album' | 'track', string] {

src/test.ts

@@ -24,9 +24,7 @@ if (!process.env.TEST_OPTIONS) {
 		)
 		process.exit(1)
 	}
-} else {
-	testOptions = JSON.parse(process.env.TEST_OPTIONS)
-}
+} else testOptions = JSON.parse(process.env.TEST_OPTIONS)
 
 async function start() {
 	const lucidaOptions: LucidaOptions = {