private void SetPurchaseFailed(IStoreProduct product, StoreTransaction transactionInfo, PurchaseValidationResult validationResult, StorePurchaseError failReason, Exception e = null)
{
var result = new PurchaseResult(product, transactionInfo, validationResult);
if (_purchaseOpCs != null)
{
if (failReason == StorePurchaseError.UserCanceled)
{
_purchaseOpCs.SetCanceled();
}
else if (e != null)
{
_purchaseOpCs.SetException(new StorePurchaseException(result, failReason, e));
}
else
{
_purchaseOpCs.SetException(new StorePurchaseException(result, failReason));
}
}
else
{
InvokePurchaseFailed(result, failReason, e);
ReleaseTransaction();
}
}
public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
{
Debug.Assert(args != null);
Debug.Assert(args.purchasedProduct != null);
if (_disposed)
{
// Quick return if the store has been disposed.
return(PurchaseProcessingResult.Pending);
}
else
{
var product = args.purchasedProduct;
var productId = product.definition.id;
var isRestored = _purchaseOpCs == null;
try
{
// If the purchase operation has been auto-restored _purchaseOpCs would be null.
if (isRestored)
{
InvokePurchaseInitiated(productId, true);
InitializeTransaction(productId);
}
_console.TraceEvent(TraceEventType.Verbose, _traceEventPurchase, "ProcessPurchase: " + productId);
_console.TraceEvent(TraceEventType.Verbose, _traceEventPurchase, $"Receipt ({productId}): {product.receipt ?? "null"}");
// NOTE: _purchaseOp equals to null if this call is a result of purchase restore process,
// otherwise identifier of the product purchased should match the one specified in _purchaseOp.
if (isRestored || _purchaseOpCs.Task.AsyncState.Equals(product))
{
var transactionInfo = new StoreTransaction(product, isRestored);
if (string.IsNullOrEmpty(transactionInfo.Receipt))
{
SetPurchaseFailed(_purchaseProduct, transactionInfo, null, StorePurchaseError.ReceiptNullOrEmpty);
}
else
{
ValidatePurchase(_purchaseProduct, transactionInfo);
return(PurchaseProcessingResult.Pending);
}
}
}
catch (Exception e)
{
SetPurchaseFailed(_purchaseProduct, new StoreTransaction(product, isRestored), null, StorePurchaseError.Unknown, e);
}
return(PurchaseProcessingResult.Complete);
}
}
private void SetPurchaseCompleted(IStoreProduct product, StoreTransaction transactionInfo, PurchaseValidationResult validationResult)
{
var result = new PurchaseResult(product, transactionInfo, validationResult);
if (_purchaseOpCs != null)
{
_purchaseOpCs.SetResult(result);
}
else
{
InvokePurchaseCompleted(result);
ReleaseTransaction();
}
}
private async void ValidatePurchase(IStoreProduct userProduct, StoreTransaction transactionInfo)
{
var product = transactionInfo.Product;
var resultStatus = PurchaseValidationStatus.Failure;
try
{
_console.TraceEvent(TraceEventType.Verbose, _traceEventPurchase, $"ValidatePurchase: {product.definition.id}, transactionId = {product.transactionID}");
var validationResult = await _delegate.ValidatePurchaseAsync(userProduct, transactionInfo);
if (!_disposed)
{
if (validationResult == null)
{
// No result returned from the validator means validation succeeded.
ConfirmPendingPurchase(product);
SetPurchaseCompleted(_purchaseProduct, transactionInfo, validationResult);
}
else
{
resultStatus = validationResult.Status;
if (resultStatus == PurchaseValidationStatus.Ok)
{
// The purchase validation succeeded.
ConfirmPendingPurchase(product);
SetPurchaseCompleted(_purchaseProduct, transactionInfo, validationResult);
}
else if (resultStatus == PurchaseValidationStatus.Failure)
{
// The purchase validation failed: confirm to avoid processing it again.
ConfirmPendingPurchase(product);
SetPurchaseFailed(_purchaseProduct, transactionInfo, validationResult, StorePurchaseError.ReceiptValidationFailed);
}
else
{
// Need to re-validate the purchase: do not confirm.
SetPurchaseFailed(_purchaseProduct, transactionInfo, validationResult, StorePurchaseError.ReceiptValidationNotAvailable);
}
}
}
}
catch (Exception e)
{
// NOTE: Should not really get here (do we need to confirm it in this case?).
ConfirmPendingPurchase(product);
SetPurchaseFailed(_purchaseProduct, transactionInfo, null, StorePurchaseError.ReceiptValidationFailed, e);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PurchaseResult"/> class.
/// </summary>
public PurchaseResult(IStoreProduct product, StoreTransaction transactionInfo, PurchaseValidationResult validationResult)
{
Product = product;
TransactionInfo = transactionInfo;
ValidationResult = validationResult;
}
