From 7e095351c5c2007fe6939bfbbe0bd45a46403198 Mon Sep 17 00:00:00 2001
From: Sebastian Kruse <sebastian@kruse-familie.eu>
Date: Tue, 22 Jan 2019 09:09:56 +0100
Subject: [PATCH] Validate iOS purchases on restore

---
 .../InAppBillingImplementation.cs                      | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs b/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
index 60fe6f6..7a89906 100644
--- a/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
+++ b/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
@@ -108,10 +108,14 @@ public async override Task<IEnumerable<InAppBillingPurchase>> GetPurchasesAsync(
 				.Select(p2 => p2.ToIABPurchase())
 				.Distinct(comparer);
 
-			//try to validate purchases
-			var valid = await ValidateReceipt(verifyPurchase, string.Empty, string.Empty);
+			var validPurchases = new List<InAppBillingPurchase>();
+			foreach (var purchase in converted)
+			{
+				if (await ValidateReceipt(verifyPurchase, purchase.ProductId, purchase.Id))
+					validPurchases.Add(purchase);
+			}
 
-			return valid ? converted : null;
+			return validPurchases.Any() ? validPurchases : null;
 		}