Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/com/google/android/gms/common/BlockingServiceConnection.java

@@ -0,0 +1,51 @@
+package com.google.android.gms.common;
+
+import android.content.ComponentName;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import com.google.android.gms.common.annotation.KeepForSdk;
+import com.google.android.gms.common.internal.Preconditions;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+@KeepForSdk
+/* loaded from: classes3.dex */
+public class BlockingServiceConnection implements ServiceConnection {
+    boolean zza = false;
+    private final BlockingQueue zzb = new LinkedBlockingQueue();
+
+    @KeepForSdk
+    public IBinder getService() throws InterruptedException {
+        Preconditions.checkNotMainThread("BlockingServiceConnection.getService() called on main thread");
+        if (this.zza) {
+            throw new IllegalStateException("Cannot call get on this connection more than once");
+        }
+        this.zza = true;
+        return (IBinder) this.zzb.take();
+    }
+
+    @KeepForSdk
+    public IBinder getServiceWithTimeout(long j4, TimeUnit timeUnit) throws InterruptedException, TimeoutException {
+        Preconditions.checkNotMainThread("BlockingServiceConnection.getServiceWithTimeout() called on main thread");
+        if (this.zza) {
+            throw new IllegalStateException("Cannot call get on this connection more than once");
+        }
+        this.zza = true;
+        IBinder iBinder = (IBinder) this.zzb.poll(j4, timeUnit);
+        if (iBinder != null) {
+            return iBinder;
+        }
+        throw new TimeoutException("Timed out waiting for the service connection");
+    }
+
+    @Override // android.content.ServiceConnection
+    public final void onServiceConnected(ComponentName componentName, IBinder iBinder) {
+        this.zzb.add(iBinder);
+    }
+
+    @Override // android.content.ServiceConnection
+    public final void onServiceDisconnected(ComponentName componentName) {
+    }
+}