Add support for steam wallet keys, #239

Author: JustArchi

ArchiSteamFarm/ArchiHandler.cs

@@ -120,19 +120,22 @@ internal PlayingSessionStateCallback(JobID jobID, CMsgClientPlayingSessionState
 		internal sealed class PurchaseResponseCallback : CallbackMsg {
 			internal enum EPurchaseResult : sbyte {
 				[SuppressMessage("ReSharper", "UnusedMember.Global")]
-				Unknown = -1,
+				Unknown = -2,
+				Timeout = -1,
 				OK = 0,
 				AlreadyOwned = 9,
 				RegionLocked = 13,
 				InvalidKey = 14,
 				DuplicatedKey = 15,
 				BaseGameRequired = 24,
+				SteamWalletCode = 50,
 				OnCooldown = 53
 			}
 
-			internal readonly EPurchaseResult PurchaseResult;
 			internal readonly Dictionary<uint, string> Items;
 
+			internal EPurchaseResult PurchaseResult { get; set; }
+
 			internal PurchaseResponseCallback(JobID jobID, CMsgClientPurchaseResponse msg) {
 				if ((jobID == null) || (msg == null)) {
 					throw new ArgumentNullException(nameof(jobID) + " || " + nameof(msg));

ArchiSteamFarm/ArchiWebHandler.cs

@@ -554,6 +554,25 @@ internal uint GetServerTime() {
 			return null;
 		}
 
+		internal async Task<ArchiHandler.PurchaseResponseCallback.EPurchaseResult> RedeemWalletKey(string key) {
+			if (string.IsNullOrEmpty(key)) {
+				Logging.LogNullError(nameof(key), Bot.BotName);
+				return ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Unknown;
+			}
+
+			if (!await RefreshSessionIfNeeded().ConfigureAwait(false)) {
+				return ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Timeout;
+			}
+
+			string request = SteamStoreURL + "/account/validatewalletcode";
+			Dictionary<string, string> data = new Dictionary<string, string>(1) {
+				{ "wallet_code", key }
+			};
+
+			Steam.RedeemWalletResponse response = await WebBrowser.UrlPostToJsonResultRetry<Steam.RedeemWalletResponse>(request, data).ConfigureAwait(false);
+			return response?.PurchaseResult ?? ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Timeout;
+		}
+
 		internal HashSet<Steam.TradeOffer> GetActiveTradeOffers() {
 			if (string.IsNullOrEmpty(Bot.BotConfig.SteamApiKey)) {
 				Logging.LogNullError(nameof(Bot.BotConfig.SteamApiKey), Bot.BotName);

ArchiSteamFarm/Bot.cs

@@ -1186,13 +1186,22 @@ private async Task<string> ResponseRedeem(ulong steamID, string message, bool va
 						} else {
 							ArchiHandler.PurchaseResponseCallback result = await currentBot.ArchiHandler.RedeemKey(key).ConfigureAwait(false);
 							if (result == null) {
-								response.Append(Environment.NewLine + "<" + currentBot.BotName + "> Key: " + key + " | Status: Timeout!");
+								response.Append(Environment.NewLine + "<" + currentBot.BotName + "> Key: " + key + " | Status: " + ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Timeout);
 								currentBot = null; // Either bot will be changed, or loop aborted
 							} else {
 								switch (result.PurchaseResult) {
 									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.DuplicatedKey:
 									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.InvalidKey:
 									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.OK:
+									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.SteamWalletCode:
+									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Timeout:
+									case ArchiHandler.PurchaseResponseCallback.EPurchaseResult.Unknown:
+										if (result.PurchaseResult == ArchiHandler.PurchaseResponseCallback.EPurchaseResult.SteamWalletCode) {
+											// If it's a wallet code, try to redeem it, and forward the result
+											// The result is final, there is no place for forwarding
+											result.PurchaseResult = await currentBot.ArchiWebHandler.RedeemWalletKey(key).ConfigureAwait(false);
+										}
+
 										response.Append(Environment.NewLine + "<" + currentBot.BotName + "> Key: " + key + " | Status: " + result.PurchaseResult + ((result.Items != null) && (result.Items.Count > 0) ? " | Items: " + string.Join("", result.Items) : ""));
 
 										key = reader.ReadLine(); // Next key

ArchiSteamFarm/JSON/Steam.cs

@@ -311,6 +311,17 @@ internal bool IsFairTypesExchange() {
 			}
 		}
 
+		[SuppressMessage("ReSharper", "ClassCannotBeInstantiated")]
+		[SuppressMessage("ReSharper", "ClassNeverInstantiated.Global")]
+		internal sealed class RedeemWalletResponse { // Deserialized from JSON
+#pragma warning disable 649
+			[JsonProperty(PropertyName = "detail", Required = Required.Always)]
+			internal readonly ArchiHandler.PurchaseResponseCallback.EPurchaseResult PurchaseResult;
+#pragma warning restore 649
+
+			private RedeemWalletResponse() { }
+		}
+
 		[SuppressMessage("ReSharper", "UnusedMember.Global")]
 		internal sealed class TradeOfferRequest { // Constructed from code
 			internal sealed class ItemList {