initial commit

pull/1/head
alacleaker 8 months ago
commit 0b759e338e
  1. 7
      .gitignore
  2. 11
      README.md
  3. 112
      agent.js
  4. 10
      go.mod
  5. 26
      go.sum
  6. 1640
      main.go

7
.gitignore vendored

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*
!.gitignore
!agent.js
!go.mod
!go.sum
!main.go
!README.md

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# Apple Music ALAC Downloader
Original script by Sorrow. Modified by me to include some fixes and improvements.
## How to use
1. Create a virtual device on Android Studio with a image that doesn't have Google APIs.
2. Install this version of Apple Music: https://www.apkmirror.com/apk/apple/apple-music/apple-music-3-6-0-beta-release/apple-music-3-6-0-beta-4-android-apk-download/. You will also need SAI to install it: https://f-droid.org/pt_BR/packages/com.aefyr.sai.fdroid/.
3. Launch Apple Music and sign in to your account. Subscription required.
4. Port forward 10020 TCP: `adb forward tcp:10020 tcp:10020`.
5. Start frida server.
6. Start the frida agent: `frida -U -l agent.js -f com.apple.android.music`.
7. Start downloading some albums: `go run main.go https://music.apple.com/us/album/whenever-you-need-somebody-2022-remaster/1624945511`.

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'use strict';
setTimeout(() => {
const fairplayCert = "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";
function newStdStringFromBuffer(content) {
const size = content.byteLength;
const cap = 2 ** Math.ceil(Math.log2(size + 1));
const buffer = Memory.alloc(cap);
Memory.copy(buffer, content.unwrap(), size);
const addr = Memory.alloc(Process.pointerSize * 3);
addr.writeULong(cap | 0x1);
addr.add(Process.pointerSize).writeULong(size);
addr.add(Process.pointerSize * 2).writePointer(buffer);
return { buffer: buffer, str: addr };
}
function newStdString(content) {
const size = content.length;
const cap = 2 ** Math.ceil(Math.log2(size + 1));
const buffer = Memory.alloc(cap);
buffer.writeUtf8String(content);
const addr = Memory.alloc(Process.pointerSize * 3);
addr.writeULong(cap | 0x1);
addr.add(Process.pointerSize).writeULong(size);
addr.add(Process.pointerSize * 2).writePointer(buffer);
return { buffer: buffer, str: addr };
}
const androidappmusic = Process.getModuleByName("libandroidappmusic.so");
const sessionCtrlPtr = androidappmusic.getExportByName("_ZN21SVFootHillSessionCtrl8instanceEv");
const sessionCtrlInstanceFunc = new NativeFunction(sessionCtrlPtr, "pointer", []);
const sessionCtrlInstance = sessionCtrlInstanceFunc();
const getPersistentKeyAddr = androidappmusic.getExportByName("_ZN21SVFootHillSessionCtrl16getPersistentKeyERKNSt6__ndk112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEES8_S8_S8_S8_S8_S8_");
const getPersistentKey = new NativeFunction(getPersistentKeyAddr, "void", Array(9).fill("pointer"));
const decryptContextAddr = androidappmusic.getExportByName("_ZN21SVFootHillSessionCtrl14decryptContextERKNSt6__ndk112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEERKN11SVDecryptor15SVDecryptorTypeERKb");
const decryptContext = new NativeFunction(decryptContextAddr, "void", Array(3).fill("pointer"));
const NfcRKVnxuKZy04KWbdFu71Ou = androidappmusic.getExportByName("NfcRKVnxuKZy04KWbdFu71Ou");
const decryptSample = new NativeFunction(NfcRKVnxuKZy04KWbdFu71Ou, 'ulong', ['pointer', 'uint', 'pointer', 'pointer', 'size_t']);
const kdContextMap = new Map();
function getkdContext(adam, uri) {
const uriStr = String.fromCharCode(...new Uint8Array(uri))
if (kdContextMap.has(uriStr)) {
return kdContextMap.get(uriStr);
}
const defaultId = newStdStringFromBuffer(adam);
const keyUri = newStdStringFromBuffer(uri);
const keyFormat = newStdString("com.apple.streamingkeydelivery");
const keyFormatVer = newStdString("1");
const serverUri = newStdString("https://play.itunes.apple.com/WebObjects/MZPlay.woa/music/fps");
const protocolType = newStdString("simplified");
const fpsCert = newStdString(fairplayCert);
const persistentKey = Memory.alloc(Process.pointerSize * 2);
getPersistentKey(persistentKey, sessionCtrlInstance, defaultId.str, keyUri.str, keyFormat.str, keyFormatVer.str, serverUri.str, protocolType.str, fpsCert.str);
const ptr = persistentKey.readPointer();
if (ptr.isNull()) return null;
const svfootHillPKey = Memory.alloc(Process.pointerSize * 2);
decryptContext(svfootHillPKey, sessionCtrlInstance, ptr);
const ptr2 = svfootHillPKey.readPointer();
if (ptr2.isNull()) return null;
const ap = ptr2.add(0x18).readPointer();
if (!ap.isNull()) kdContextMap.set(uriStr, ap);
return ap;
}
async function handleConnection(s) {
// console.log("new connection!");
while (true) {
const adamSize = (await s.input.readAll(1)).unwrap().readU8();
if (adamSize === 0)
break;
const adam = await s.input.readAll(adamSize);
const uriSize = (await s.input.readAll(1)).unwrap().readU8();
const uri = await s.input.readAll(uriSize);
const kdContext = getkdContext(adam, uri);
// console.log(adam, uri, kdContext)
while (true) {
const size = (await s.input.readAll(4)).unwrap().readU32();
if (size === 0)
break;
const sample = await s.input.readAll(size);
decryptSample(kdContext.readPointer(), 5, sample.unwrap(), sample.unwrap(), sample.byteLength);
await s.output.writeAll(sample);
}
}
await s.close();
}
Socket.listen({
family: "ipv4",
port: 10020,
}).then(async function (listener) {
while (true) {
handleConnection(await listener.accept());
}
}).catch(console.log);
}, 4000);

@ -0,0 +1,10 @@
module main
go 1.17
require (
github.com/abema/go-mp4 v0.7.2
github.com/grafov/m3u8 v0.11.1
)
require github.com/google/uuid v1.1.2 // indirect

@ -0,0 +1,26 @@
github.com/abema/go-mp4 v0.7.2 h1:ugTC8gfEmjyaDKpXs3vi2QzgJbDu9B8m6UMMIpbYbGg=
github.com/abema/go-mp4 v0.7.2/go.mod h1:vPl9t5ZK7K0x68jh12/+ECWBCXoWuIDtNgPtU2f04ws=
github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/grafov/m3u8 v0.11.1 h1:igZ7EBIB2IAsPPazKwRKdbhxcoBKO3lO1UY57PZDeNA=
github.com/grafov/m3u8 v0.11.1/go.mod h1:nqzOkfBiZJENr52zTVd/Dcl03yzphIMbJqkXGu+u080=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/orcaman/writerseeker v0.0.0-20200621085525-1d3f536ff85e/go.mod h1:nBdnFKj15wFbf94Rwfq4m30eAcyY9V/IyKAGQFtqkW0=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/sunfish-shogi/bufseekio v0.0.0-20210207115823-a4185644b365/go.mod h1:dEzdXgvImkQ3WLI+0KQpmEx8T/C/ma9KeS3AfmU899I=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/src-d/go-billy.v4 v4.3.2/go.mod h1:nDjArDMp+XMs1aFAESLRjfGSgfvoYN0hDfzEk0GjC98=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

1640
main.go

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