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/kotlinx/coroutines/CancellableContinuationKt.java

@@ -0,0 +1,93 @@
+package kotlinx.coroutines;
+
+import kotlin.Metadata;
+import kotlin.Unit;
+import kotlin.coroutines.Continuation;
+import kotlin.coroutines.intrinsics.IntrinsicsKt;
+import kotlin.coroutines.jvm.internal.DebugProbesKt;
+import kotlin.jvm.functions.Function1;
+import kotlin.jvm.internal.InlineMarker;
+import kotlin.jvm.internal.SourceDebugExtension;
+import kotlinx.coroutines.internal.DispatchedContinuation;
+
+@Metadata(d1 = {"\u0000(\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u0002\n\u0002\b\u0004\n\u0002\u0018\u0002\n\u0000\u001a\"\u0010\u0000\u001a\b\u0012\u0004\u0012\u0002H\u00020\u0001\"\u0004\b\u0000\u0010\u00022\f\u0010\u0003\u001a\b\u0012\u0004\u0012\u0002H\u00020\u0004H\u0000\u001a0\u0010\u0005\u001a\u0002H\u0002\"\u0004\b\u0000\u0010\u00022\u001a\b\u0004\u0010\u0006\u001a\u0014\u0012\n\u0012\b\u0012\u0004\u0012\u0002H\u00020\b\u0012\u0004\u0012\u00020\t0\u0007H\u0086H¢\u0006\u0002\u0010\n\u001a0\u0010\u000b\u001a\u0002H\u0002\"\u0004\b\u0000\u0010\u00022\u001a\b\u0004\u0010\u0006\u001a\u0014\u0012\n\u0012\b\u0012\u0004\u0012\u0002H\u00020\u0001\u0012\u0004\u0012\u00020\t0\u0007H\u0080H¢\u0006\u0002\u0010\n\u001a\u0018\u0010\f\u001a\u00020\t*\u0006\u0012\u0002\b\u00030\b2\u0006\u0010\r\u001a\u00020\u000eH\u0007¨\u0006\u000f"}, d2 = {"getOrCreateCancellableContinuation", "Lkotlinx/coroutines/CancellableContinuationImpl;", "T", "delegate", "Lkotlin/coroutines/Continuation;", "suspendCancellableCoroutine", "block", "Lkotlin/Function1;", "Lkotlinx/coroutines/CancellableContinuation;", "", "(Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;", "suspendCancellableCoroutineReusable", "disposeOnCancellation", "handle", "Lkotlinx/coroutines/DisposableHandle;", "kotlinx-coroutines-core"}, k = 2, mv = {1, 9, 0}, xi = 48)
+@SourceDebugExtension({"SMAP\nCancellableContinuation.kt\nKotlin\n*S Kotlin\n*F\n+ 1 CancellableContinuation.kt\nkotlinx/coroutines/CancellableContinuationKt\n+ 2 fake.kt\nkotlin/jvm/internal/FakeKt\n+ 3 CompletionHandler.kt\nkotlinx/coroutines/CompletionHandlerKt\n*L\n1#1,386:1\n1#2:387\n19#3:388\n*S KotlinDebug\n*F\n+ 1 CancellableContinuation.kt\nkotlinx/coroutines/CancellableContinuationKt\n*L\n380#1:388\n*E\n"})
+/* loaded from: classes3.dex */
+public final class CancellableContinuationKt {
+    @InternalCoroutinesApi
+    public static final void disposeOnCancellation(CancellableContinuation<?> cancellableContinuation, DisposableHandle disposableHandle) {
+        cancellableContinuation.invokeOnCancellation(new DisposeOnCancel(disposableHandle));
+    }
+
+    public static final <T> CancellableContinuationImpl<T> getOrCreateCancellableContinuation(Continuation<? super T> continuation) {
+        if (!(continuation instanceof DispatchedContinuation)) {
+            return new CancellableContinuationImpl<>(continuation, 1);
+        }
+        CancellableContinuationImpl<T> claimReusableCancellableContinuation$kotlinx_coroutines_core = ((DispatchedContinuation) continuation).claimReusableCancellableContinuation$kotlinx_coroutines_core();
+        if (claimReusableCancellableContinuation$kotlinx_coroutines_core != null) {
+            if (!claimReusableCancellableContinuation$kotlinx_coroutines_core.resetStateReusable()) {
+                claimReusableCancellableContinuation$kotlinx_coroutines_core = null;
+            }
+            if (claimReusableCancellableContinuation$kotlinx_coroutines_core != null) {
+                return claimReusableCancellableContinuation$kotlinx_coroutines_core;
+            }
+        }
+        return new CancellableContinuationImpl<>(continuation, 2);
+    }
+
+    public static final <T> Object suspendCancellableCoroutine(Function1<? super CancellableContinuation<? super T>, Unit> function1, Continuation<? super T> continuation) {
+        CancellableContinuationImpl cancellableContinuationImpl = new CancellableContinuationImpl(IntrinsicsKt.intercepted(continuation), 1);
+        cancellableContinuationImpl.initCancellability();
+        function1.invoke(cancellableContinuationImpl);
+        Object result = cancellableContinuationImpl.getResult();
+        if (result == IntrinsicsKt.getCOROUTINE_SUSPENDED()) {
+            DebugProbesKt.probeCoroutineSuspended(continuation);
+        }
+        return result;
+    }
+
+    private static final <T> Object suspendCancellableCoroutine$$forInline(Function1<? super CancellableContinuation<? super T>, Unit> function1, Continuation<? super T> continuation) {
+        InlineMarker.mark(0);
+        CancellableContinuationImpl cancellableContinuationImpl = new CancellableContinuationImpl(IntrinsicsKt.intercepted(continuation), 1);
+        cancellableContinuationImpl.initCancellability();
+        function1.invoke(cancellableContinuationImpl);
+        Object result = cancellableContinuationImpl.getResult();
+        if (result == IntrinsicsKt.getCOROUTINE_SUSPENDED()) {
+            DebugProbesKt.probeCoroutineSuspended(continuation);
+        }
+        InlineMarker.mark(1);
+        return result;
+    }
+
+    public static final <T> Object suspendCancellableCoroutineReusable(Function1<? super CancellableContinuationImpl<? super T>, Unit> function1, Continuation<? super T> continuation) {
+        CancellableContinuationImpl orCreateCancellableContinuation = getOrCreateCancellableContinuation(IntrinsicsKt.intercepted(continuation));
+        try {
+            function1.invoke(orCreateCancellableContinuation);
+            Object result = orCreateCancellableContinuation.getResult();
+            if (result == IntrinsicsKt.getCOROUTINE_SUSPENDED()) {
+                DebugProbesKt.probeCoroutineSuspended(continuation);
+            }
+            return result;
+        } catch (Throwable th) {
+            orCreateCancellableContinuation.releaseClaimedReusableContinuation$kotlinx_coroutines_core();
+            throw th;
+        }
+    }
+
+    private static final <T> Object suspendCancellableCoroutineReusable$$forInline(Function1<? super CancellableContinuationImpl<? super T>, Unit> function1, Continuation<? super T> continuation) {
+        InlineMarker.mark(0);
+        CancellableContinuationImpl orCreateCancellableContinuation = getOrCreateCancellableContinuation(IntrinsicsKt.intercepted(continuation));
+        try {
+            function1.invoke(orCreateCancellableContinuation);
+            Object result = orCreateCancellableContinuation.getResult();
+            if (result == IntrinsicsKt.getCOROUTINE_SUSPENDED()) {
+                DebugProbesKt.probeCoroutineSuspended(continuation);
+            }
+            InlineMarker.mark(1);
+            return result;
+        } catch (Throwable th) {
+            orCreateCancellableContinuation.releaseClaimedReusableContinuation$kotlinx_coroutines_core();
+            throw th;
+        }
+    }
+}