ImranR98/Obtainium

support App Bundles (.aab)

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#795 opened on Aug 23, 2023

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 (7 comments) (9 reactions) (0 assignees)Dart (17,077 stars) (477 forks)batch import
enhancementhelp wanted

Description

Would be nice if Obtainium could also support installing App Bundles.

I'm not sure how feasible this is, since I think the bundle needs to be split & combined to an apk to be installable, which would require resigning the resulting apk. If Obtainium were to do this using a local signing key it should also validate the signature of the aab itself.

Here's an example of a GitHub release with an app bundle attached: https://github.com/vector-im/element-x-android/releases/tag/v0.1.2

Contributor guide

Tech stack
dartandroid
Domain
mobilesecurity
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Android App Bundle basicsAPK signing processDart/Flutter development
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Investigate using bundletool to convert .aab to APKs, then sign the result with a local signing key. Validate the original AAB signature before conversion. Check the example release at https://github.com/vector im/element x android/releases/tag/v0.1.2 for format reference. Review issue comments for discussion on feasibility and potential security concerns.
support App Bundles (.aab) · ImranR98/Obtainium#795 | Good First Issue