rip legacy track urls and formats

you will be missed... probably
This commit is contained in:
uh wot 2025-07-20 17:49:51 +02:00
parent 11e367a827
commit 16edb7b46a
Signed by: uhwot
GPG key ID: CB2454984587B781
8 changed files with 771 additions and 762 deletions

View file

@ -12,10 +12,10 @@
"author": "uh_wot <uhwot@protonmail.com>",
"license": "MIT",
"devDependencies": {
"wrangler": "^3.48.0"
"wrangler": "^4.25.0"
},
"dependencies": {
"browser-id3-writer": "^6.1.0",
"itty-router": "^5.0.9"
"browser-id3-writer": "^6.3.0",
"itty-router": "^5.0.18"
}
}

View file

@ -19,7 +19,7 @@
</head>
<body>
<h1>dzserver</h1>
<h2><a href="https://git.uhwot.cf/uhwot/dzserver">source code</a></h2>
<h2><a href="https://uhwotgit.fly.dev/uhwot/dzserver">source code</a></h2>
<br>
<p>how 2 use:</p>
@ -31,7 +31,7 @@
<p>params are:</p>
<p><b>t: tagging</b>, boolean</p>
<p><b>f: format</b>, can be one of these:</p>
<p>aac_96, 64, 128, 320, flac, mp4_ra1, mp4_ra2, mp4_ra3, mhm1_ra1, mhm1_ra2, mhm1_ra3, sbc_256, misc</p>
<p>128, 320, flac, misc</p>
<p>available formats depend on the track</p>
</body>
</html>

View file

@ -1,30 +1,18 @@
import index_html from './index.html'
import { Cipher, legacy_stream_url } from '../wasm/pkg'
import { Cipher } from '../wasm/pkg'
import { encodeRFC5987ValueChars } from './utils'
import { error, json as jsonResp, html, AutoRouter, createResponse } from 'itty-router'
import { error, html, AutoRouter, createResponse, json as jsonResp } from 'itty-router'
import { ID3Writer } from 'browser-id3-writer'
const client_id = "447462"
const client_secret = "a83bf7f38ad2f137e444727cfc3775cf"
const formats = {
aac_96: { num: '8', gw: 'AAC_96', mime: 'audio/3gpp', ext: '3gp' },
64: { num: '10', gw: 'MP3_64', mime: 'audio/mpeg', ext: 'mp3' },
128: { num: '1', gw: 'MP3_128', mime: 'audio/mpeg', ext: 'mp3' },
320: { num: '3', gw: 'MP3_320', mime: 'audio/mpeg', ext: 'mp3' },
flac: { num: '9', gw: 'FLAC', mime: 'audio/flac', ext: 'flac' },
mp4_ra1: { num: '13', gw: 'MP4_RA1', mime: 'audio/mp4', ext: 'mp4' },
mp4_ra2: { num: '14', gw: 'MP4_RA2', mime: 'audio/mp4', ext: 'mp4' },
mp4_ra3: { num: '15', gw: 'MP4_RA3', mime: 'audio/mp4', ext: 'mp4' },
mhm1_ra1: { num: '16', gw: 'MHM1_RA1', mime: 'audio/mp4', ext: 'mp4' },
mhm1_ra2: { num: '17', gw: 'MHM1_RA2', mime: 'audio/mp4', ext: 'mp4' },
mhm1_ra3: { num: '18', gw: 'MHM1_RA3', mime: 'audio/mp4', ext: 'mp4' },
sbc_256: { num: '12', gw: 'SBC_256', mime: '', ext: 'sbc' },
misc: { num: '0', gw: 'MP3_MISC', mime: 'audio/mpeg', ext: 'mp3' },
}
async function track_req(request, env) {
async function request_handler(request, env) {
const { query } = request
let { type, id } = request.params
@ -33,7 +21,7 @@ async function track_req(request, env) {
}
id = parseInt(id)
if (isNaN(id) || (type !== 'track' && id < 0)) {
if (isNaN(id) || id < 0) {
return error(400, 'Invalid ID')
}
@ -133,60 +121,16 @@ async function auth_gw(env) {
}
}
let access_token
async function auth_dzapi(env) {
access_token = await env.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=${client_id}&client_secret=${client_secret}&output=json`)
const json = await response.json()
if (json.error !== undefined) {
return error(500, "Couldn't get access token from Deezer")
}
access_token = json.access_token
await env.KV.put('access_token', access_token, { expirationTtl: parseInt(json.expires) })
}
}
async function track(env, id, format, tagging, range_header, user_agent) {
// other users' user-upped tracks cannot be downloaded with the gw-light API
let json;
if (id >= 0) {
let err_auth = await auth_gw(env)
if (err_auth) {
return err_auth
}
let err_auth = await auth_gw(env)
if (err_auth) {
return err_auth
}
json = await gw_api_call(env, 'song.getData', { 'SNG_ID': id })
if (json.constructor.name === 'Response') {
return json
}
} else { // user-upped track
let err_auth = await auth_dzapi(env)
if (err_auth) {
return err_auth
}
const response = await fetch(`https://api.deezer.com/track/${id}?access_token=${access_token}`)
json = await response.json()
if (json.error !== undefined) {
return error(403, {error: json.error})
}
json = {
SNG_ID: json.id,
FILESIZE_MP3_MISC: json.filesize_misc,
SNG_TITLE: json.title,
ALB_TITLE: json.album.title,
ART_NAME: json.artist.name,
ARTISTS: [{ART_NAME: json.artist.name}],
ISRC: '',
ALB_PICTURE: json.md5_image,
MD5_ORIGIN: json.md5_origin,
MEDIA_VERSION: json.media_version,
}
format = 'misc' // user-upped tracks always use 'misc' as format
const json = await gw_api_call(env, 'song.getData', { 'SNG_ID': id })
if (json.constructor.name === 'Response') {
return json
}
if (json['FILESIZE_' + formats[format].gw] == false) {
@ -207,51 +151,46 @@ async function track(env, id, format, tagging, range_header, user_agent) {
}
let track_url
let use_legacy_url = !['320', 'flac'].includes(format)
if (!use_legacy_url) { // server-side stream url
// needed if track has fallback, like https://www.deezer.com/track/11835714
let track_token
if (json.FALLBACK !== undefined) {
track_token = json.FALLBACK.TRACK_TOKEN
} else {
track_token = json.TRACK_TOKEN
}
// needed if track has fallback, like https://www.deezer.com/track/11835714
let track_token
if (json.FALLBACK !== undefined) {
track_token = json.FALLBACK.TRACK_TOKEN
} else {
track_token = json.TRACK_TOKEN
}
const body = {
license_token: license_token,
media: [
{
type: 'FULL',
formats: [
{
cipher: 'BF_CBC_STRIPE',
format: formats[format].gw
}
]
}
],
track_tokens: [ track_token ]
}
const body = {
license_token: license_token,
media: [
{
type: 'FULL',
formats: [
{
cipher: 'BF_CBC_STRIPE',
format: formats[format].gw
}
]
}
],
track_tokens: [ track_token ]
}
const init = {
method: 'POST',
body: JSON.stringify(body)
}
let init = {
method: 'POST',
body: JSON.stringify(body)
}
const resp = await fetch('https://media.deezer.com/v1/get_url', init)
if (resp.status !== 200) {
return error(403, "Couldn't get stream URL")
}
const resp = await fetch('https://media.deezer.com/v1/get_url', init)
if (resp.status !== 200) {
return error(403, "Couldn't get stream URL")
}
const media_json = await resp.json()
const media_json = await resp.json()
if (media_json.data[0].media !== undefined) {
track_url = media_json.data[0].media[0].sources[0].url
} else {
return error(403, "Couldn't get stream URL")
}
} else { // legacy stream url
track_url = legacy_track_url(json, format)
if (media_json.data[0].media !== undefined) {
track_url = media_json.data[0].media[0].sources[0].url
} else {
return error(403, "Couldn't get stream URL")
}
let title = json.SNG_TITLE
@ -265,8 +204,11 @@ async function track(env, id, format, tagging, range_header, user_agent) {
content_disposition = `inline; filename="${encodeURIComponent(filename)}"`
}
let init = { method: 'GET', headers: {} }
let resp_init = {
// we need to disable cloudflare's cache here
// otherwise range requests will be broken as hell
// https://community.cloudflare.com/t/cloudflare-worker-fetch-ignores-byte-request-range-on-initial-request/395047
init = { method: 'GET', headers: {}, cache: 'no-store' }
const resp_init = {
status: 200,
headers: {
'content-type': formats[format].mime,
@ -324,7 +266,7 @@ async function track(env, id, format, tagging, range_header, user_agent) {
}
if (json.ALB_PICTURE !== '') {
const url = `https://e-cdns-images.dzcdn.net/images/cover/${json.ALB_PICTURE}/1000x1000-000000-80-0-0.jpg`
const url = `https://cdns-images.dzcdn.net/images/cover/${json.ALB_PICTURE}/1000x1000-000000-80-0-0.jpg`
const cover = await fetch(url)
const coverBuffer = await cover.arrayBuffer()
@ -401,8 +343,7 @@ async function track(env, id, format, tagging, range_header, user_agent) {
}
}
let track
track = await fetch(track_url, init)
const track = await fetch(track_url, init)
if (![200, 206].includes(track.status)) {
if (track.status === 416) {
return error(416, 'Invalid range')
@ -485,21 +426,7 @@ async function pipeDecryptedStream(writer, body, length, cipher, byte_count, byt
reader.cancel()
writer.close()
}
function legacy_track_url(json, format) {
// needed if track has fallback, like https://www.deezer.com/track/11835714
if (json.FALLBACK) {
json = json.FALLBACK
}
const id = json.SNG_ID.toString()
const md5_origin = json.MD5_ORIGIN
const media_version = json.MEDIA_VERSION
format = formats[format].num
return legacy_stream_url(md5_origin, format, id, media_version)
return
}
async function m3u8(type, id, format, tagging, host) {
@ -526,7 +453,7 @@ async function m3u8(type, id, format, tagging, host) {
const router = AutoRouter()
router
.get('/:type/:id', track_req)
.get('/:type/:id', request_handler)
.get('/', () => html(index_html))
// written like this cause of funny workers bug

280
wasm/Cargo.lock generated
View file

@ -1,17 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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@ -43,15 +32,15 @@ dependencies = [
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@ -63,10 +52,19 @@ dependencies = [
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@ -78,25 +76,6 @@ dependencies = [
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@ -121,7 +100,6 @@ dependencies = [
name = "dzserver"
version = "0.1.0"
dependencies = [
"aes",
"blowfish",
"cbc",
"cipher",
@ -149,9 +127,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
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@ -159,69 +137,90 @@ dependencies = [
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@ -230,41 +229,52 @@ dependencies = [
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@ -273,21 +283,22 @@ dependencies = [
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@ -295,9 +306,9 @@ dependencies = [
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.87"
version = "0.2.100"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
dependencies = [
"proc-macro2",
"quote",
@ -308,19 +319,21 @@ dependencies = [
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.87"
version = "0.2.100"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
dependencies = [
"unicode-ident",
]
[[package]]
name = "wasm-bindgen-test"
version = "0.3.37"
version = "0.3.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e6e302a7ea94f83a6d09e78e7dc7d9ca7b186bc2829c24a22d0753efd680671"
checksum = "66c8d5e33ca3b6d9fa3b4676d774c5778031d27a578c2b007f905acf816152c3"
dependencies = [
"console_error_panic_hook",
"js-sys",
"scoped-tls",
"minicov",
"wasm-bindgen",
"wasm-bindgen-futures",
"wasm-bindgen-test-macro",
@ -328,20 +341,103 @@ dependencies = [
[[package]]
name = "wasm-bindgen-test-macro"
version = "0.3.37"
version = "0.3.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ecb993dd8c836930ed130e020e77d9b2e65dd0fbab1b67c790b0f5d80b11a575"
checksum = "17d5042cc5fa009658f9a7333ef24291b1291a25b6382dd68862a7f3b969f69b"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "web-sys"
version = "0.3.64"
version = "0.3.77"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
dependencies = [
"js-sys",
"wasm-bindgen",
]
[[package]]
name = "winapi-util"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
dependencies = [
"windows-sys",
]
[[package]]
name = "windows-sys"
version = "0.59.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
dependencies = [
"windows-targets",
]
[[package]]
name = "windows-targets"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
[[package]]
name = "windows_i686_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
[[package]]
name = "windows_i686_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"

View file

@ -9,7 +9,6 @@ crate-type = ["cdylib", "rlib"]
[dependencies]
blowfish = "0.9"
aes = "0.8"
md-5 = "0.10"
cipher = { version = "0.4", features = ["block-padding", "alloc"] }
cbc = "0.1"

View file

@ -1,16 +1,14 @@
use wasm_bindgen::prelude::*;
use aes::Aes128Enc;
use blowfish::Blowfish;
use md5::{Md5, Digest};
use cipher::{
BlockEncrypt, BlockDecryptMut, KeyInit, KeyIvInit,
block_padding::{NoPadding, ZeroPadding}
BlockDecryptMut, KeyIvInit,
block_padding::NoPadding
};
type BfCbcDec = cbc::Decryptor<Blowfish>;
const TRACK_CDN_KEY: [u8; 16] = [106, 111, 54, 97, 101, 121, 54, 104, 97, 105, 100, 50, 84, 101, 105, 104];
const BF_SECRET: [u8; 16] = [103, 52, 101, 108, 53, 56, 119, 99, 48, 122, 118, 102, 57, 110, 97, 49];
#[wasm_bindgen]
@ -35,32 +33,3 @@ impl Cipher {
self.cipher.clone().decrypt_padded_mut::<NoPadding>(chunk).unwrap();
}
}
#[wasm_bindgen]
pub fn legacy_stream_url(md5_origin: &str, format: &str, id: &str, media_version: u8) -> String {
// md5 origin + format num + id + media version
let metadata = [
md5_origin.as_bytes(),
&[b'\xa4'],
format.as_bytes(),
&[b'\xa4'],
id.as_bytes(),
&[b'\xa4'],
media_version.to_string().as_bytes(),
].concat();
let hash = format!("{:x}", Md5::digest(&metadata));
// md5 hash + previous metadata
let metadata_hash = [
hash.as_bytes(),
&[b'\xa4'],
&metadata,
&[b'\xa4'],
].concat();
let cipher = Aes128Enc::new_from_slice(&TRACK_CDN_KEY).unwrap();
let ciphertext = cipher.encrypt_padded_vec::<ZeroPadding>(&metadata_hash);
format!("https://e-cdns-proxy-{}.dzcdn.net/mobile/1/{}", md5_origin.chars().next().unwrap(), hex::encode(ciphertext))
}

View file

@ -4,7 +4,7 @@ kv_namespaces = [
{ binding = "KV", id = "974c0967a84e415daa054bbbcc7f80c6", preview_id = "cfcc6491f3484cbca664913836635113" }
]
main = "./src/main.js"
compatibility_date = "2024-04-08"
compatibility_date = "2025-07-20"
[build]
command = "yarn run wasm_build"

1022
yarn.lock

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