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320/flac now epically bacc?!?!?!?1?1

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This commit is contained in:
uh wot 2021-09-01 15:01:56 +02:00
parent 90f3d6bf4e
commit a92876194a
Signed by: uhwot
GPG key ID: CB2454984587B781
5 changed files with 61 additions and 42 deletions
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78
index.js
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@ -10,6 +10,7 @@ const format_string_to_num = {
'64': '10',
'128': '1',
'320': '3',
'flac': '9',
'mp4_ra1': '13',
'mp4_ra2': '14',
'mp4_ra3': '15',
@ -21,18 +22,6 @@ const format_string_to_num = {
}
async function handler(type, request) {
access_token = await KV.get('access_token')
if (access_token === null) {
const response = await fetch('https://connect.deezer.com/oauth/access_token.php?grant_type=client_credentials&client_id=447462&client_secret=a83bf7f38ad2f137e444727cfc3775cf&output=json')
const json = await response.json()
if (json.error !== undefined) {
return new Response("Couldn't get access token from Deezer", { status: 500, headers: { 'content-type': 'text/plain' } })
}
access_token = json.access_token
await KV.put('access_token', access_token, { expirationTtl: parseInt(json.expires) })
}
const url = new URL(request.url)
const id = url.pathname.split('/')[2]
@ -51,19 +40,19 @@ async function handler(type, request) {
}
let tagging = url.searchParams.get('t')
tagging = tagging === 'true' || tagging === '1'
tagging = (tagging === 'true' || tagging === '1') && ['misc', '128', '320'].includes(format)
switch (type) {
case 'track':
return await track(id, format, access_token, tagging)
return await track(id, format, tagging)
case 'album':
case 'playlist':
return await m3u8(type, id, format, access_token, tagging, url.host)
return await m3u8(type, id, format, tagging, url.host)
}
}
async function track(id, format, access_token, tagging) {
const response = await fetch(`https://api.deezer.com/track/${id}?access_token=${access_token}`)
async function track(id, format, tagging) {
const response = await fetch(`https://api.deezer.com/streaming_url.php?access_token=${ACCESS_TOKEN}&track_id=${id}`)
const json = await response.json()
if (json.error !== undefined) {
return new Response(JSON.stringify(json.error), { status: 403, headers: { 'content-type': "application/json" } })
@ -71,14 +60,29 @@ async function track(id, format, access_token, tagging) {
const wasm = await import('./pkg')
result = await track_url(json, format, wasm.stream_url)
if (typeof result === 'object') {
return result
encrypted = !['320', 'flac'].includes(format)
if (!encrypted) { // server-side stream url
// TODO: handle alternatives
result = json['url_' + format]
if (result === undefined) {
return new Response('Format unavailable', { status: 403, headers: { 'content-type': 'text/plain' } })
}
result = wasm.decrypt_stream_url(result)
} else { // legacy stream url
result = await legacy_track_url(json, format, wasm.legacy_stream_url)
if (typeof result === 'object') {
return result
}
}
const track = await fetch(result)
if (track.status !== 200) {
return new Response("Couldn't get track stream", { status: 403, headers: { 'content-type': 'text/plain' } })
let track
if (tagging || encrypted) {
track = await fetch(result)
if (track.status !== 200) {
return new Response("Couldn't get track stream", { status: 403, headers: { 'content-type': 'text/plain' } })
}
}
let id3
@ -136,9 +140,12 @@ async function track(id, format, access_token, tagging) {
}
let { readable, writable } = new TransformStream()
const writer = writable.getWriter()
let writer
if (tagging || encrypted) {
writer = writable.getWriter()
}
if (id3) {
if (tagging) {
writer.write(id3.arrayBuffer)
}
@ -146,12 +153,17 @@ async function track(id, format, access_token, tagging) {
if (json.alternative) {
id = json.alternative.id.toString()
}
const cipher = new wasm.Cipher(id)
const length = parseInt(track.headers.get('Content-Length'))
pipeDecryptedStream(writer, track.body, length, cipher)
if (encrypted) {
const cipher = new wasm.Cipher(id)
const length = parseInt(track.headers.get('Content-Length'))
pipeDecryptedStream(writer, track.body, length, cipher)
} else if (tagging) {
writer.releaseLock()
track.body.pipeTo(writable)
} else {
return new Response(null, { status: 302, headers: { 'location': result } })
}
return new Response(readable, { status: 200, headers: { 'content-type': 'audio/mpeg' } })
}
@ -191,7 +203,7 @@ async function pipeDecryptedStream(writer, body, length, cipher) {
await writer.close()
}
function track_url(json, format, url_func) {
function legacy_track_url(json, format, url_func) {
// needed if track has fallback, like https://www.deezer.com/track/11835714
if (json.alternative) {
json = json.alternative
@ -214,8 +226,8 @@ function track_url(json, format, url_func) {
return url_func(md5_origin, format, id.toString(), media_version)
}
async function m3u8(type, id, format, access_token, tagging, host) {
const response = await fetch(`https://api.deezer.com/${type}/${id}?access_token=${access_token}&limit=-1`)
async function m3u8(type, id, format, tagging, host) {
const response = await fetch(`https://api.deezer.com/${type}/${id}?access_token=${ACCESS_TOKEN}&limit=-1`)
const json = await response.json()
if (json.error !== undefined) {
return new Response(JSON.stringify(json.error), { status: 403, headers: { 'content-type': "application/json" } })