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jump-app-bridge

v0.1.1

Published

React Native Android library for secure IPC auth context sharing between host and client apps.

Readme

jump-app-bridge

Library React Native (Android) untuk komunikasi auth antar 2 aplikasi via IPC yang aman.

  • Host app: app utama (handle login, role, simpan token/user)
  • Client app: app kedua (minta token/user ke host)

Cara kerja singkat

Client melakukan bind ke service di host (Bound Service + AIDL). Host mengembalikan AuthContext (accessToken, expiry, user info). Aksesnya dibatasi dengan permission protectionLevel=signature (jadi hanya app yang ditandatangani cert yang sama).

Install (dari Git)

Tambahkan dependency dari repo git kalian. Contoh:

{
  "dependencies": {
    "jump-app-bridge": "git+ssh://git@YOUR_GIT_SERVER/your-group/jump-app-bridge.git#main"
  }
}

Pemakaian (di RN JS)

Di app client:

import { JumpAuth } from 'jump-app-bridge';

await JumpAuth.configure({
  hostPackage: 'com.example.host',
  // optional kalau class servicenya beda
  // hostServiceClass: 'com.example.host.jump.JumpAuthService',
  timeoutMs: 3000,
});

const ctx = await JumpAuth.getAuthContext({ forceRefresh: false });
console.log(ctx.accessToken, ctx.userId, ctx.roles);

Integrasi Android di HOST

Kamu WAJIB menambahkan service + permission di host app. Library ini hanya menyediakan kontrak AIDL dan client binder.

1) Tambahkan permission signature + service

Di android/app/src/main/AndroidManifest.xml (host):

  • Define permission signature (contoh):
    • com.example.host.permission.JUMP_AUTH
  • Declare exported bound service pakai permission itu.

Contoh:

<manifest>
  <permission
    android:name="com.example.host.permission.JUMP_AUTH"
    android:protectionLevel="signature" />

  <application>
    <service
      android:name="com.mrliputo.jumpappbridge.JumpAuthService"
      android:exported="true"
      android:permission="com.example.host.permission.JUMP_AUTH" />
  </application>
</manifest>

Catatan: android:name service class bisa kalian taruh di package lain. Pastikan client memanggil hostServiceClass yang tepat.

2) Implementasi Service (AIDL Stub)

Host perlu implementasi com.mrliputo.jumpappbridge.ipc.IJumpAuthService.Stub dan mengembalikan AuthContext.

Minimal logic yang disarankan di host:

  • Cek caller package dari parameter callerPackage
  • Ambil Binder.getCallingUid() lalu pastikan UID itu memang milik callerPackage
  • (Optional) verifikasi signing certificate caller sama dengan host

Catatan keamanan

  • Jangan kirim refreshToken lewat IPC.
  • Dengan permission signature, kedua app harus ditandatangani cert yang sama.

Status

  • Fokus saat ini: request/response getAuthContext().
  • subscribeAuthChanges() sudah disiapkan di JS, tapi butuh implementasi push event dari host.