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/T2/b.java

@@ -0,0 +1,120 @@
+package T2;
+
+import java.lang.reflect.Array;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+/* loaded from: classes3.dex */
+public final class b extends Q2.l {
+
+    /* renamed from: d, reason: collision with root package name */
+    public static final a f1663d = new a(0);
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f1664a = 0;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final Object f1665b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final Object f1666c;
+
+    public b(Q2.d dVar, Q2.l lVar, Class cls) {
+        this.f1665b = new o(dVar, lVar, cls);
+        this.f1666c = cls;
+    }
+
+    @Override // Q2.l
+    public final Object a(Y2.a aVar) {
+        switch (this.f1664a) {
+            case 0:
+                if (aVar.o0() == 9) {
+                    aVar.k0();
+                    return null;
+                }
+                ArrayList arrayList = new ArrayList();
+                aVar.d();
+                while (aVar.b0()) {
+                    arrayList.add(((Q2.l) ((o) this.f1665b).f1703c).a(aVar));
+                }
+                aVar.O();
+                int size = arrayList.size();
+                Class cls = (Class) this.f1666c;
+                if (!cls.isPrimitive()) {
+                    return arrayList.toArray((Object[]) Array.newInstance((Class<?>) cls, size));
+                }
+                Object newInstance = Array.newInstance((Class<?>) cls, size);
+                for (int i = 0; i < size; i++) {
+                    Array.set(newInstance, i, arrayList.get(i));
+                }
+                return newInstance;
+            case 1:
+                if (aVar.o0() == 9) {
+                    aVar.k0();
+                    return null;
+                }
+                Collection collection = (Collection) ((S2.p) this.f1666c).j();
+                aVar.d();
+                while (aVar.b0()) {
+                    collection.add(((Q2.l) ((o) this.f1665b).f1703c).a(aVar));
+                }
+                aVar.O();
+                return collection;
+            default:
+                Object a2 = ((p) this.f1665b).f1707c.a(aVar);
+                if (a2 != null) {
+                    Class cls2 = (Class) this.f1666c;
+                    if (!cls2.isInstance(a2)) {
+                        throw new RuntimeException("Expected a " + cls2.getName() + " but was " + a2.getClass().getName() + "; at path " + aVar.a0(true));
+                    }
+                }
+                return a2;
+        }
+    }
+
+    @Override // Q2.l
+    public final void b(Y2.b bVar, Object obj) {
+        switch (this.f1664a) {
+            case 0:
+                if (obj == null) {
+                    bVar.b0();
+                    return;
+                }
+                bVar.e();
+                int length = Array.getLength(obj);
+                for (int i = 0; i < length; i++) {
+                    ((o) this.f1665b).b(bVar, Array.get(obj, i));
+                }
+                bVar.O();
+                return;
+            case 1:
+                Collection collection = (Collection) obj;
+                if (collection == null) {
+                    bVar.b0();
+                    return;
+                }
+                bVar.e();
+                Iterator it = collection.iterator();
+                while (it.hasNext()) {
+                    ((o) this.f1665b).b(bVar, it.next());
+                }
+                bVar.O();
+                return;
+            default:
+                ((p) this.f1665b).f1707c.b(bVar, obj);
+                return;
+        }
+    }
+
+    public b(Q2.d dVar, Type type, Q2.l lVar, S2.p pVar) {
+        this.f1665b = new o(dVar, lVar, type);
+        this.f1666c = pVar;
+    }
+
+    public b(p pVar, Class cls) {
+        this.f1665b = pVar;
+        this.f1666c = cls;
+    }
+}