frida-sms-hook/agent/index.ts

import { log } from "./logger.js"

setImmediate(() => {
    Java.perform(() => {
        var MainActivity = Java.use("com.google.android.apps.messaging.main.MainActivity")
        var SmsUtil = Java.use("com.example.mysmsapp.SmsUtils")
        Java.choose("com.example.mysmsapp.MainActivity", {
            onMatch: function (instance) {
                log("Found instance of MainActivity")
                var intent = SmsUtil.getSmsIntent("123", "test")
                var Receiver = Java.use(
                    "com.example.mysmsapp.SmsReceiver"
                )
                var onReceiveMethod = Receiver.onReceive
                var receiverInstance = Receiver.$new()
                var context = Java.use("android.app.ActivityThread")
                    .currentApplication()
                    .getApplicationContext()
                onReceiveMethod.call(receiverInstance, context, intent)
            },
            onComplete: function () {
                log("Completed")
            }
        })

        var res = SmsUtil.createFakeSms("123", "11a1sdfasdftest")
        log(res)
        log(res.length)
    })
})