Node APK

A library to parse Android application's manifest and signature

Installation

This library is meant to work with Node JS 4 or later. You can install it using npm:

npm install node-apk

The use of typescript is highly recommended for which this library has full typing support.

Usage

Import the Apk class and instantiate it passing your APK's file path

import {Apk} from "node-apk";
const apk = new Apk("yourapplication.apk");

Manifest information

Application manifest details can be accessed using:

apk.getManifestInfo().then((manifest) => {
    console.log(`package = ${manifest.package}`);
    console.log(`versionCode = ${manifest.versionCode}`);
    console.log(`versionName = ${manifest.versionName}`);
    // for properties which haven't any existing accessors you can use the raw binary xml
    console.log(JSON.stringify(manifest.raw, null, 4));
});

Certificate information

Certificates can be retrieved like the following:

apk.getCertificateInfo().then((certs) => certs.foreach((cert) => {
    console.log(`issuer = ${cert.issuer.get("CN")}`);
    console.log(`subject = ${cert.subject.get("CN")}`);
    console.log(`validUntil = ${cert.validUntil}`);
    console.log(cert.bytes.toString("base64"));
}));

Application resources

Application resources can be resolved as shown below:

const iconBytes = Promise.all<Manifest, Resources>([apk.getManifestInfo(), apk.getResources()])
    .then(([manifest, resources])) => {
        let label = manifest.applicationLabel;
        if (typeof label !== "string") {
            const all = resources.resolve(label);
            label = (all.find((res) => (res.locale && res.locale.language === "fr")) || all[0]).value;
        }
        console.log(`label = ${label}`);

        // resolve and extract the first application icon found
        return apk.extract(resources.resolve(manifest.applicationIcon)[0]);
    }

Cleaning up

Once you are done, don't forget to release you Apk object:

apk.close();

License

This software is licensed under the MIT license

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