Add support for new trade messages acknowledge

ArchiSteamFarm/Steam/Bot.cs

@@ -164,6 +164,10 @@ public sealed class Bot : IAsyncDisposable, IDisposable {
 	[PublicAPI]
 	public SteamFriends SteamFriends { get; }
 
+	[JsonIgnore]
+	[PublicAPI]
+	public Trading Trading { get; }
+
 	internal bool CanReceiveSteamCards => !IsAccountLimited && !IsAccountLocked;
 	internal bool HasLoginCodeReady => !string.IsNullOrEmpty(TwoFactorCode) || !string.IsNullOrEmpty(AuthCode);
 
@@ -179,7 +183,6 @@ public sealed class Bot : IAsyncDisposable, IDisposable {
 	private readonly SteamClient SteamClient;
 	private readonly ConcurrentHashSet<ulong> SteamFamilySharingIDs = [];
 	private readonly SteamUser SteamUser;
-	private readonly Trading Trading;
 	private readonly SemaphoreSlim UnpackBoosterPacksSemaphore = new(1, 1);
 
 	private IEnumerable<(string FilePath, EFileType FileType)> RelatedFiles {

ArchiSteamFarm/Steam/Exchange/Trading.cs

@@ -22,6 +22,7 @@
 // limitations under the License.
 
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
@@ -44,6 +45,9 @@ public sealed class Trading : IDisposable {
 	internal const byte MaxItemsPerTrade = byte.MaxValue; // This is decided upon various factors, mainly stability of Steam servers when dealing with huge trade offers
 	internal const byte MaxTradesPerAccount = 5; // This is limit introduced by Valve
 
+	[PublicAPI]
+	public static readonly FrozenSet<uint> TradeRestrictionsAppIDs = [730];
+
 	private readonly Bot Bot;
 	private readonly ConcurrentHashSet<ulong> HandledTradeOfferIDs = [];
 	private readonly SemaphoreSlim TradesSemaphore = new(1, 1);
@@ -58,6 +62,15 @@ public sealed class Trading : IDisposable {
 
 	public void Dispose() => TradesSemaphore.Dispose();
 
+	[PublicAPI]
+	public async Task<bool> AcknowledgeTradeRestrictions() {
+		if (Bot.BotDatabase.TradeRestrictionsAcknowledged) {
+			return true;
+		}
+
+		return Bot.BotDatabase.TradeRestrictionsAcknowledged = await Bot.ArchiWebHandler.AcknowledgeTradeRestrictions().ConfigureAwait(false);
+	}
+
 	[PublicAPI]
 	public static Dictionary<(uint RealAppID, EAssetType Type, EAssetRarity Rarity), List<uint>> GetInventorySets(IReadOnlyCollection<Asset> inventory) {
 		if ((inventory == null) || (inventory.Count == 0)) {
@@ -285,6 +298,11 @@ public sealed class Trading : IDisposable {
 
 			IList<ParseTradeResult> tradeResults = await Utilities.InParallel(tasks).ConfigureAwait(false);
 
+			if (!Bot.BotDatabase.TradeRestrictionsAcknowledged && tradeResults.Any(static result => ((result.Result == ParseTradeResult.EResult.Accepted) && (result.ItemsToGive?.Any(static item => TradeRestrictionsAppIDs.Contains(item.AppID)) == true)) || (result.ItemsToReceive?.Any(static item => TradeRestrictionsAppIDs.Contains(item.AppID)) == true))) {
+				// We should normally fail the process in case of a failure here, but since the popup could be marked already in the past, we'll allow it in hope it wasn't needed after all
+				await AcknowledgeTradeRestrictions().ConfigureAwait(false);
+			}
+
 			if (Bot.HasMobileAuthenticator) {
 				HashSet<ParseTradeResult> mobileTradeResults = tradeResults.Where(static result => result is { Result: ParseTradeResult.EResult.Accepted, Confirmed: false }).ToHashSet();
 

ArchiSteamFarm/Steam/Integration/ArchiWebHandler.cs

@@ -1507,6 +1507,17 @@ public sealed class ArchiWebHandler : IDisposable {
 		return response?.Content != null ? (true, response.Content.RequiresMobileConfirmation) : (false, false);
 	}
 
+	internal async Task<bool> AcknowledgeTradeRestrictions() {
+		Uri request = new(SteamCommunityURL, "/trade/new/acknowledge");
+
+		// Extra entry for sessionID
+		Dictionary<string, string> data = new(2, StringComparer.Ordinal) {
+			{ "message", "1" }
+		};
+
+		return await UrlPostWithSession(request, data: data).ConfigureAwait(false);
+	}
+
 	internal async Task<(EResult Result, EPurchaseResultDetail PurchaseResult)> AddFreeLicense(uint subID) {
 		ArgumentOutOfRangeException.ThrowIfZero(subID);
 

ArchiSteamFarm/Steam/Interaction/Actions.cs

@@ -459,6 +459,12 @@ public sealed class Actions : IAsyncDisposable, IDisposable {
 			return (false, Strings.BotLootingFailed);
 		}
 
+		// In similar way we might need to accept popup on Steam side, we limit it only to cases that we're aware of, as sending this request otherwise is additional overhead for no reason
+		if (!Bot.BotDatabase.TradeRestrictionsAcknowledged && items.Any(static item => Trading.TradeRestrictionsAppIDs.Contains(item.AppID))) {
+			// We should normally fail the process in case of a failure here, but since the popup could be marked already in the past, we'll allow it in hope it wasn't needed after all
+			await Bot.Trading.AcknowledgeTradeRestrictions().ConfigureAwait(false);
+		}
+
 		(bool success, _, HashSet<ulong>? mobileTradeOfferIDs) = await Bot.ArchiWebHandler.SendTradeOffer(targetSteamID, items, token: tradeToken, customMessage: customMessage, itemsPerTrade: itemsPerTrade).ConfigureAwait(false);
 
 		if ((mobileTradeOfferIDs?.Count > 0) && Bot.HasMobileAuthenticator) {

ArchiSteamFarm/Steam/Storage/BotDatabase.cs

@@ -50,6 +50,21 @@ public sealed class BotDatabase : GenericDatabase {
 
 	internal bool HasGamesToRedeemInBackground => GamesToRedeemInBackgroundCount > 0;
 
+	[JsonIgnore]
+	[PublicAPI]
+	public bool TradeRestrictionsAcknowledged {
+		get => BackingTradeRestrictionsAcknowledged;
+
+		internal set {
+			if (BackingTradeRestrictionsAcknowledged == value) {
+				return;
+			}
+
+			BackingTradeRestrictionsAcknowledged = value;
+			Utilities.InBackground(Save);
+		}
+	}
+
 	internal string? AccessToken {
 		get => BackingAccessToken;
 
@@ -166,6 +181,9 @@ public sealed class BotDatabase : GenericDatabase {
 	[JsonInclude]
 	private string? BackingSteamGuardData { get; set; }
 
+	[JsonInclude]
+	private bool BackingTradeRestrictionsAcknowledged { get; set; }
+
 	[JsonDisallowNull]
 	[JsonInclude]
 	private OrderedDictionary GamesToRedeemInBackground { get; init; } = new();
@@ -228,6 +246,9 @@ public sealed class BotDatabase : GenericDatabase {
 	[UsedImplicitly]
 	public bool ShouldSerializeBackingSteamGuardData() => !string.IsNullOrEmpty(BackingSteamGuardData);
 
+	[UsedImplicitly]
+	public bool ShouldSerializeBackingTradeRestrictionsAcknowledged() => BackingTradeRestrictionsAcknowledged;
+
 	[UsedImplicitly]
 	public bool ShouldSerializeExtraStorePackages() => ExtraStorePackages.Count > 0;