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/androidx/navigation/ActivityNavigator.java

@@ -0,0 +1,138 @@
+package androidx.navigation;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+import com.google.android.gms.measurement.internal.a;
+import java.util.Iterator;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.ranges.RangesKt;
+import kotlin.sequences.SequencesKt;
+import o0.C0525b;
+import o0.C0526c;
+import o0.E;
+import o0.K;
+import o0.U;
+import o0.V;
+
+@Metadata(d1 = {"\u0000\u000e\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0000\b\u0017\u0018\u00002\b\u0012\u0004\u0012\u00020\u00020\u0001:\u0001\u0002¨\u0006\u0003"}, d2 = {"Landroidx/navigation/ActivityNavigator;", "Lo0/V;", "Lo0/b;", "navigation-runtime_release"}, k = 1, mv = {1, 6, 0}, xi = 48)
+@U("activity")
+/* loaded from: classes.dex */
+public class ActivityNavigator extends V {
+
+    /* renamed from: c, reason: collision with root package name */
+    public final Context f3443c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final Activity f3444d;
+
+    public ActivityNavigator(Context context) {
+        Object obj;
+        Intrinsics.checkNotNullParameter(context, "context");
+        this.f3443c = context;
+        Iterator it = SequencesKt.generateSequence(context, C0526c.f7976b).iterator();
+        while (true) {
+            if (!it.hasNext()) {
+                obj = null;
+                break;
+            } else {
+                obj = it.next();
+                if (((Context) obj) instanceof Activity) {
+                    break;
+                }
+            }
+        }
+        this.f3444d = (Activity) obj;
+    }
+
+    @Override // o0.V
+    public final E a() {
+        Intrinsics.checkNotNullParameter(this, "activityNavigator");
+        return new E(this);
+    }
+
+    @Override // o0.V
+    public final E c(E e4, Bundle bundle, K k4) {
+        Intent intent;
+        int intExtra;
+        C0525b destination = (C0525b) e4;
+        Intrinsics.checkNotNullParameter(destination, "destination");
+        if (destination.f7974k == null) {
+            throw new IllegalStateException(a.m(new StringBuilder("Destination "), destination.h, " does not have an Intent set.").toString());
+        }
+        Intent intent2 = new Intent(destination.f7974k);
+        if (bundle != null) {
+            intent2.putExtras(bundle);
+            String str = destination.f7975l;
+            if (str != null && str.length() != 0) {
+                StringBuffer stringBuffer = new StringBuffer();
+                Matcher matcher = Pattern.compile("\\{(.+?)\\}").matcher(str);
+                while (matcher.find()) {
+                    String group = matcher.group(1);
+                    if (!bundle.containsKey(group)) {
+                        throw new IllegalArgumentException("Could not find " + group + " in " + bundle + " to fill data pattern " + str);
+                    }
+                    matcher.appendReplacement(stringBuffer, "");
+                    stringBuffer.append(Uri.encode(String.valueOf(bundle.get(group))));
+                }
+                matcher.appendTail(stringBuffer);
+                intent2.setData(Uri.parse(stringBuffer.toString()));
+            }
+        }
+        Activity activity = this.f3444d;
+        if (activity == null) {
+            intent2.addFlags(268435456);
+        }
+        if (k4 != null && k4.f7937a) {
+            intent2.addFlags(536870912);
+        }
+        if (activity != null && (intent = activity.getIntent()) != null && (intExtra = intent.getIntExtra("android-support-navigation:ActivityNavigator:current", 0)) != 0) {
+            intent2.putExtra("android-support-navigation:ActivityNavigator:source", intExtra);
+        }
+        intent2.putExtra("android-support-navigation:ActivityNavigator:current", destination.h);
+        Context context = this.f3443c;
+        Resources resources = context.getResources();
+        if (k4 != null) {
+            int i = k4.h;
+            int i4 = k4.i;
+            if ((i <= 0 || !Intrinsics.areEqual(resources.getResourceTypeName(i), "animator")) && (i4 <= 0 || !Intrinsics.areEqual(resources.getResourceTypeName(i4), "animator"))) {
+                intent2.putExtra("android-support-navigation:ActivityNavigator:popEnterAnim", i);
+                intent2.putExtra("android-support-navigation:ActivityNavigator:popExitAnim", i4);
+            } else {
+                Log.w("ActivityNavigator", "Activity destinations do not support Animator resource. Ignoring popEnter resource " + resources.getResourceName(i) + " and popExit resource " + resources.getResourceName(i4) + " when launching " + destination);
+            }
+        }
+        context.startActivity(intent2);
+        if (k4 == null || activity == null) {
+            return null;
+        }
+        int i5 = k4.f7942f;
+        int i6 = k4.f7943g;
+        if ((i5 <= 0 || !Intrinsics.areEqual(resources.getResourceTypeName(i5), "animator")) && (i6 <= 0 || !Intrinsics.areEqual(resources.getResourceTypeName(i6), "animator"))) {
+            if (i5 < 0 && i6 < 0) {
+                return null;
+            }
+            activity.overridePendingTransition(RangesKt.coerceAtLeast(i5, 0), RangesKt.coerceAtLeast(i6, 0));
+            return null;
+        }
+        Log.w("ActivityNavigator", "Activity destinations do not support Animator resource. Ignoring enter resource " + resources.getResourceName(i5) + " and exit resource " + resources.getResourceName(i6) + "when launching " + destination);
+        return null;
+    }
+
+    @Override // o0.V
+    public final boolean j() {
+        Activity activity = this.f3444d;
+        if (activity == null) {
+            return false;
+        }
+        activity.finish();
+        return true;
+    }
+}