Update SK2 libs

Bumps [ASF-WebConfigGenerator](https://github.com/JustArchiNET/ASF-WebConfigGenerator) from `003693a` to `adb2111`.
- [Release notes](https://github.com/JustArchiNET/ASF-WebConfigGenerator/releases)
- [Commits](003693a1fe...adb2111205)

Signed-off-by: dependabot[bot] <support@dependabot.com>

ArchiSteamFarm.CustomPlugins.ExamplePlugin/ExamplePlugin.cs

@@ -35,7 +35,7 @@ namespace ArchiSteamFarm.CustomPlugins.ExamplePlugin {
 	// Your plugin class should inherit the plugin interfaces it wants to handle
 	// If you do not want to handle a particular action (e.g. OnBotMessage that is offered in IBotMessage), it's the best idea to not inherit it at all
 	// This will keep your code compact, efficient and less dependent. You can always add additional interfaces when you'll need them, this example project will inherit quite a bit of them to show you potential usage
-	internal sealed class ExamplePlugin : IASF, IBot, IBotCommand, IBotConnection, IBotMessage, IBotModules, IBotTradeOffer {
+	internal sealed class ExamplePlugin : IASF, IBot, IBotCommand, IBotConnection, IBotFriendRequest, IBotMessage, IBotModules, IBotTradeOffer {
 		// This is used for identification purposes, typically you want to use a friendly name of your plugin here, such as the name of your main class
 		// Please note that this property can have direct dependencies only on structures that were initialized by the constructor, as it's possible to be called before OnLoaded() takes place
 		public string Name => nameof(ExamplePlugin);
@@ -105,6 +105,12 @@ namespace ArchiSteamFarm.CustomPlugins.ExamplePlugin {
 		// Still, you should take anything other than EResult.OK with a grain of salt, unless you want to assume that Steam knows why it disconnected us (hehe, you bet)
 		public void OnBotDisconnected(Bot bot, EResult reason) { }
 
+		// This method is called when bot receives a friend request or group invite that ASF isn't willing to accept
+		// It allows you to generate a response whether ASF should accept it (true) or proceed like usual (false)
+		// If you wanted to do extra filtering (e.g. friend requests only), you can interpret the steamID as SteamID (SteamKit2 type) and then operate on AccountType
+		// As an example, we'll run a trade bot that is open to all friend/group invites, therefore we'll accept all of them here
+		public Task<bool> OnBotFriendRequest(Bot bot, ulong steamID) => Task.FromResult(true);
+
 		// This method is called at the end of Bot's constructor
 		// You can initialize all your per-bot structures here
 		// In general you should do that only when you have a particular need of custom modules or alike, since ASF's plugin system will always provide bot to you as a function argument
@@ -156,7 +162,7 @@ namespace ArchiSteamFarm.CustomPlugins.ExamplePlugin {
 		// At this point you can access core ASF's functionality, such as logging or a web browser
 		// Once all plugins execute their OnLoaded() methods, OnASFInit() will be called next
 		public void OnLoaded() {
-			ASF.ArchiLogger.LogGenericInfo("Hey! Thanks for checking if our example plugin works fine, this is a confirmation that indeed OnLoaded() method was called!");
+			ASF.ArchiLogger.LogGenericInfo("Hey! Thanks for checking if our example plugin works fine, this is a confirmation that indeed " + nameof(OnLoaded) + "() method was called!");
 			ASF.ArchiLogger.LogGenericInfo("Good luck in whatever you're doing!");
 		}
 	}

ArchiSteamFarm.Tests/ArchiSteamFarm.Tests.csproj

@@ -36,7 +36,7 @@
   <ItemGroup>
     <PackageReference Include="ConfigureAwaitChecker.Analyzer" Version="3.0.0" />
     <PackageReference Include="JetBrains.Annotations" Version="2018.3.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.0-preview-20181205-02" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.0-preview-20190124-02" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />
     <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
   </ItemGroup>

ArchiSteamFarm.Tests/Trading.cs

@@ -19,12 +19,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-using System;
 using System.Collections.Generic;
-using System.Reflection;
 using ArchiSteamFarm.Json;
 using JetBrains.Annotations;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using static ArchiSteamFarm.Trading;
 
 namespace ArchiSteamFarm.Tests {
 	[TestClass]
@@ -47,7 +46,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(3, realAppID: 730, type: Steam.Asset.EType.Emoticon)
 			};
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -67,7 +66,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(4, realAppID: 730, type: Steam.Asset.EType.Emoticon)
 			};
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -88,7 +87,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(4, realAppID: 730)
 			};
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -108,7 +107,25 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(4, realAppID: 730)
 			};
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
+		}
+
+		[TestMethod]
+		public void SingleGameDonationAccept() {
+			HashSet<Steam.Asset> inventory = new HashSet<Steam.Asset> {
+				CreateItem(1)
+			};
+
+			HashSet<Steam.Asset> itemsToGive = new HashSet<Steam.Asset> {
+				CreateItem(1)
+			};
+
+			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> {
+				CreateItem(2),
+				CreateItem(3, type: Steam.Asset.EType.SteamGems)
+			};
+
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -129,7 +146,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(3, type: Steam.Asset.EType.Emoticon)
 			};
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -149,7 +166,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(4, type: Steam.Asset.EType.Emoticon)
 			};
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -168,7 +185,7 @@ namespace ArchiSteamFarm.Tests {
 
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(4, 3) };
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -185,7 +202,7 @@ namespace ArchiSteamFarm.Tests {
 
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(3, 3) };
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -202,7 +219,7 @@ namespace ArchiSteamFarm.Tests {
 
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(3, 2) };
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -215,7 +232,7 @@ namespace ArchiSteamFarm.Tests {
 			HashSet<Steam.Asset> itemsToGive = new HashSet<Steam.Asset> { CreateItem(1) };
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(2) };
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -233,7 +250,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(3)
 			};
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -247,7 +264,7 @@ namespace ArchiSteamFarm.Tests {
 			HashSet<Steam.Asset> itemsToGive = new HashSet<Steam.Asset> { CreateItem(2) };
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(3) };
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -270,7 +287,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(4)
 			};
 
-			Assert.IsFalse(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsFalse(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -279,7 +296,7 @@ namespace ArchiSteamFarm.Tests {
 			HashSet<Steam.Asset> itemsToGive = new HashSet<Steam.Asset> { CreateItem(1) };
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(2) };
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -288,7 +305,7 @@ namespace ArchiSteamFarm.Tests {
 			HashSet<Steam.Asset> itemsToGive = new HashSet<Steam.Asset> { CreateItem(1) };
 			HashSet<Steam.Asset> itemsToReceive = new HashSet<Steam.Asset> { CreateItem(2) };
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[TestMethod]
@@ -305,18 +322,7 @@ namespace ArchiSteamFarm.Tests {
 				CreateItem(3)
 			};
 
-			Assert.IsTrue(AcceptsTrade(inventory, itemsToGive, itemsToReceive));
-		}
-
-		private static bool AcceptsTrade(IReadOnlyCollection<Steam.Asset> inventory, IReadOnlyCollection<Steam.Asset> itemsToGive, IReadOnlyCollection<Steam.Asset> itemsToReceive) {
-			Type trading = typeof(ArchiSteamFarm.Trading);
-			MethodInfo method = trading.GetMethod("IsTradeNeutralOrBetter", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
-
-			if (method == null) {
-				throw new ArgumentNullException(nameof(method));
-			}
-
-			return (bool) method.Invoke(null, new object[] { inventory, itemsToGive, itemsToReceive });
+			Assert.IsTrue(IsTradeNeutralOrBetter(inventory, itemsToGive, itemsToReceive));
 		}
 
 		[NotNull]

ArchiSteamFarm/Actions.cs

@@ -21,6 +21,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -86,6 +87,10 @@ namespace ArchiSteamFarm {
 				return (false, Strings.BotNoASFAuthenticator);
 			}
 
+			if (!Bot.IsConnectedAndLoggedOn) {
+				return (false, Strings.BotNotConnected);
+			}
+
 			HashSet<ulong> handledTradeOfferIDs = null;
 
 			for (byte i = 0; (i == 0) || ((i < WebBrowser.MaxTries) && waitIfNeeded); i++) {
@@ -202,7 +207,8 @@ namespace ArchiSteamFarm {
 		}
 
 		[PublicAPI]
-		public async Task<(bool Success, string Message)> SendTradeOffer(uint appID = Steam.Asset.SteamAppID, uint contextID = Steam.Asset.SteamCommunityContextID, ulong targetSteamID = 0, IReadOnlyCollection<uint> wantedRealAppIDs = null, IReadOnlyCollection<Steam.Asset.EType> wantedTypes = null) {
+		[SuppressMessage("ReSharper", "FunctionComplexityOverflow")]
+		public async Task<(bool Success, string Message)> SendTradeOffer(uint appID = Steam.Asset.SteamAppID, uint contextID = Steam.Asset.SteamCommunityContextID, ulong targetSteamID = 0, string tradeToken = null, IReadOnlyCollection<uint> wantedRealAppIDs = null, IReadOnlyCollection<Steam.Asset.EType> wantedTypes = null) {
 			if ((appID == 0) || (contextID == 0)) {
 				Bot.ArchiLogger.LogNullError(nameof(appID) + " || " + nameof(contextID));
 
@@ -219,6 +225,10 @@ namespace ArchiSteamFarm {
 				if (targetSteamID == 0) {
 					return (false, Strings.BotLootingMasterNotDefined);
 				}
+
+				if (string.IsNullOrEmpty(tradeToken) && !string.IsNullOrEmpty(Bot.BotConfig.SteamTradeToken)) {
+					tradeToken = Bot.BotConfig.SteamTradeToken;
+				}
 			}
 
 			if (targetSteamID == Bot.SteamID) {
@@ -250,7 +260,15 @@ namespace ArchiSteamFarm {
 					return (false, Strings.BotLootingFailed);
 				}
 
-				(bool success, HashSet<ulong> mobileTradeOfferIDs) = await Bot.ArchiWebHandler.SendTradeOffer(targetSteamID, inventory, token: Bot.BotConfig.SteamTradeToken).ConfigureAwait(false);
+				if (string.IsNullOrEmpty(tradeToken) && (Bot.SteamFriends.GetFriendRelationship(targetSteamID) != EFriendRelationship.Friend)) {
+					Bot targetBot = Bot.Bots.Values.FirstOrDefault(bot => bot.SteamID == targetSteamID);
+
+					if (targetBot?.IsConnectedAndLoggedOn == true) {
+						tradeToken = await targetBot.ArchiHandler.GetTradeToken().ConfigureAwait(false);
+					}
+				}
+
+				(bool success, HashSet<ulong> mobileTradeOfferIDs) = await Bot.ArchiWebHandler.SendTradeOffer(targetSteamID, inventory, token: tradeToken).ConfigureAwait(false);
 
 				if ((mobileTradeOfferIDs != null) && (mobileTradeOfferIDs.Count > 0) && Bot.HasMobileAuthenticator) {
 					(bool twoFactorSuccess, _) = await HandleTwoFactorAuthenticationConfirmations(true, Steam.ConfirmationDetails.EType.Trade, mobileTradeOfferIDs, true).ConfigureAwait(false);

ArchiSteamFarm/ArchiSteamFarm.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <ApplicationIcon>ASF.ico</ApplicationIcon>
-    <AssemblyVersion>4.0.0.1</AssemblyVersion>
+    <AssemblyVersion>4.0.0.2</AssemblyVersion>
     <Authors>JustArchi</Authors>
     <Company>JustArchi</Company>
     <ConcurrentGarbageCollection>true</ConcurrentGarbageCollection>
@@ -11,7 +11,7 @@
     <DefaultItemExcludes>$(DefaultItemExcludes);config/**;debug/**;out/**;overlay/**</DefaultItemExcludes>
     <Description>ASF is an application that allows you to farm steam cards using multiple steam accounts simultaneously.</Description>
     <ErrorReport>none</ErrorReport>
-    <FileVersion>4.0.0.1</FileVersion>
+    <FileVersion>4.0.0.2</FileVersion>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <LangVersion>latest</LangVersion>
     <NoWarn>1591</NoWarn>
@@ -73,7 +73,7 @@
     <PackageReference Include="Microsoft.Win32.Registry" Version="4.6.0-preview.18571.3" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="NLog" Version="4.5.11" />
-    <PackageReference Include="NLog.Web.AspNetCore" Version="4.7.1" />
+    <PackageReference Include="NLog.Web.AspNetCore" Version="4.8.0" />
     <PackageReference Include="protobuf-net" Version="3.0.0-alpha.3" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="5.0.0-beta" />
     <PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="5.0.0-beta" />

ArchiSteamFarm/Bot.cs

@@ -377,7 +377,7 @@ namespace ArchiSteamFarm {
 
 			Bot targetBot = Bots.Values.FirstOrDefault(bot => bot.SteamID == steamID);
 
-			if (targetBot != null) {
+			if (targetBot?.IsConnectedAndLoggedOn == true) {
 				string targetTradeToken = await targetBot.ArchiHandler.GetTradeToken().ConfigureAwait(false);
 
 				if (!string.IsNullOrEmpty(targetTradeToken)) {
@@ -1877,6 +1877,14 @@ namespace ArchiSteamFarm {
 
 						break;
 					case EAccountType.Clan:
+						bool acceptGroupRequest = await Core.OnBotFriendRequest(this, friend.SteamID).ConfigureAwait(false);
+
+						if (acceptGroupRequest) {
+							ArchiHandler.AcknowledgeClanInvite(friend.SteamID, true);
+							await JoinMasterChatGroupID().ConfigureAwait(false);
+
+							break;
+						}
 
 						if (BotConfig.BotBehaviour.HasFlag(BotConfig.EBotBehaviour.RejectInvalidGroupInvites)) {
 							ArchiHandler.AcknowledgeClanInvite(friend.SteamID, false);
@@ -1887,7 +1895,19 @@ namespace ArchiSteamFarm {
 
 						if (HasPermission(friend.SteamID, BotConfig.EPermission.FamilySharing)) {
 							await ArchiHandler.AddFriend(friend.SteamID).ConfigureAwait(false);
-						} else if (BotConfig.BotBehaviour.HasFlag(BotConfig.EBotBehaviour.RejectInvalidFriendInvites)) {
+
+							break;
+						}
+
+						bool acceptFriendRequest = await Core.OnBotFriendRequest(this, friend.SteamID).ConfigureAwait(false);
+
+						if (acceptFriendRequest) {
+							await ArchiHandler.AddFriend(friend.SteamID).ConfigureAwait(false);
+
+							break;
+						}
+
+						if (BotConfig.BotBehaviour.HasFlag(BotConfig.EBotBehaviour.RejectInvalidFriendInvites)) {
 							await ArchiHandler.RemoveFriend(friend.SteamID).ConfigureAwait(false);
 						}
 

ArchiSteamFarm/Commands.cs

@@ -462,7 +462,7 @@ namespace ArchiSteamFarm {
 
 		private async Task<string> ResponseAddLicense(ulong steamID, IReadOnlyCollection<uint> gameIDs) {
 			if ((steamID == 0) || (gameIDs == null) || (gameIDs.Count == 0)) {
-				Bot.ArchiLogger.LogNullError(nameof(steamID) + " || " + nameof(gameIDs) + " || " + nameof(gameIDs.Count));
+				Bot.ArchiLogger.LogNullError(nameof(steamID) + " || " + nameof(gameIDs));
 
 				return null;
 			}

ArchiSteamFarm/IPC/Controllers/Api/BotController.cs

@@ -378,9 +378,9 @@ namespace ArchiSteamFarm.IPC.Controllers.Api {
 		/// <summary>
 		///     Denies 2FA confirmations of given bots, requires ASF 2FA module to be active on them.
 		/// </summary>
-		[HttpPost("{botNames:required}/TwoFactorAuthentication/Confirmations/Deny")]
+		[HttpPost("{botNames:required}/TwoFactorAuthentication/Confirmations/Cancel")]
 		[ProducesResponseType(typeof(GenericResponse<IReadOnlyDictionary<string, GenericResponse>>), 200)]
-		public async Task<ActionResult<GenericResponse<IReadOnlyDictionary<string, GenericResponse>>>> TwoFactorAuthenticationConfirmationsDenyPost(string botNames) => await TwoFactorAuthenticationConfirmationsPost(botNames, false).ConfigureAwait(false);
+		public async Task<ActionResult<GenericResponse<IReadOnlyDictionary<string, GenericResponse>>>> TwoFactorAuthenticationConfirmationsCancelPost(string botNames) => await TwoFactorAuthenticationConfirmationsPost(botNames, false).ConfigureAwait(false);
 
 		/// <summary>
 		///     Fetches 2FA tokens of given bots, requires ASF 2FA module to be active on them.

ArchiSteamFarm/Localization/Strings.fi-FI.resx

@@ -647,16 +647,32 @@ StackTrace:
     <comment>{0} will be replaced by the bug's name provided by ASF</comment>
   </data>
   
+  <data name="BotWalletBalance" xml:space="preserve">
+    <value>Lompakon saldo: {0} {1}</value>
+    <comment>{0} will be replaced by wallet balance value, {1} will be replaced by currency name</comment>
+  </data>
+  <data name="BotHasNoWallet" xml:space="preserve">
+    <value>Botilla ei ole lompakkoa.</value>
+  </data>
+  <data name="BotLevel" xml:space="preserve">
+    <value>Botin taso on {0}.</value>
+    <comment>{0} will be replaced by bot's level</comment>
+  </data>
   
   
+  <data name="ErrorAborted" xml:space="preserve">
+    <value>Keskeytetty!</value>
+  </data>
   
   
-  
-  
-  
-  
-  
-  
+  <data name="PluginLoaded" xml:space="preserve">
+    <value>{0} ladattiin onnistuneesti!</value>
+    <comment>{0} will be replaced by the name of the custom ASF plugin</comment>
+  </data>
+  <data name="PluginLoading" xml:space="preserve">
+    <value>Ladataan {0} V{1}...</value>
+    <comment>{0} will be replaced by the name of the custom ASF plugin, {1} will be replaced by its version</comment>
+  </data>
   <data name="NothingFound" xml:space="preserve">
     <value>Mitään ei löytynyt!</value>
   </data>

ArchiSteamFarm/Localization/Strings.nl-NL.resx

@@ -581,7 +581,7 @@ StackTrace:
     <value>De door jou ingevoerde CurrentCulture is ongeldig. ASF zal de standaardtaal blijven gebruiken!</value>
   </data>
   <data name="TranslationIncomplete" xml:space="preserve">
-    <value>ASF probeert de {0} taalmodule te gebruiken, maar het vertalen in deze taal is slechts {1} compleet. Misschien kan je ons helpen om ASF te vertalen in jouw taal?</value>
+    <value>ASF zal de {0} taalmodule gebruiken. De vertaling, inclusief de Wiki, is {1} compleet. Misschien kun je ons helpen om ASF te vertalen in jouw taal?</value>
     <comment>{0} will be replaced by culture code, such as "en-US", {1} will be replaced by completeness percentage, such as "78.5%"</comment>
   </data>
   <data name="IdlingGameNotPossible" xml:space="preserve">

ArchiSteamFarm/Plugins/Core.cs

@@ -248,6 +248,30 @@ namespace ArchiSteamFarm.Plugins {
 			}
 		}
 
+		internal static async Task<bool> OnBotFriendRequest(Bot bot, ulong steamID) {
+			if ((bot == null) || (steamID == 0)) {
+				ASF.ArchiLogger.LogNullError(nameof(bot) + " || " + nameof(steamID));
+
+				return false;
+			}
+
+			if ((ActivePlugins == null) || (ActivePlugins.Count == 0)) {
+				return false;
+			}
+
+			IList<bool> responses;
+
+			try {
+				responses = await Utilities.InParallel(ActivePlugins.OfType<IBotFriendRequest>().Select(plugin => plugin.OnBotFriendRequest(bot, steamID))).ConfigureAwait(false);
+			} catch (Exception e) {
+				ASF.ArchiLogger.LogGenericException(e);
+
+				return false;
+			}
+
+			return responses.Any(response => response);
+		}
+
 		internal static async Task OnBotInit(Bot bot) {
 			if (bot == null) {
 				ASF.ArchiLogger.LogNullError(nameof(bot));

ArchiSteamFarm/Plugins/IBotFriendRequest.cs

@@ -0,0 +1,37 @@
+//     _                _      _  ____   _                           _____
+//    / \    _ __  ___ | |__  (_)/ ___| | |_  ___   __ _  _ __ ___  |  ___|__ _  _ __  _ __ ___
+//   / _ \  | '__|/ __|| '_ \ | |\___ \ | __|/ _ \ / _` || '_ ` _ \ | |_  / _` || '__|| '_ ` _ \
+//  / ___ \ | |  | (__ | | | || | ___) || |_|  __/| (_| || | | | | ||  _|| (_| || |   | | | | | |
+// /_/   \_\|_|   \___||_| |_||_||____/  \__|\___| \__,_||_| |_| |_||_|   \__,_||_|   |_| |_| |_|
+// |
+// Copyright 2015-2019 Łukasz "JustArchi" Domeradzki
+// Contact: JustArchi@JustArchi.net
+// |
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// |
+// http://www.apache.org/licenses/LICENSE-2.0
+// |
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using System.Threading.Tasks;
+using JetBrains.Annotations;
+
+namespace ArchiSteamFarm.Plugins {
+	[PublicAPI]
+	public interface IBotFriendRequest : IPlugin {
+		/// <summary>
+		///     ASF will call this method for unhandled (ignored and rejected) friend requests and Steam group invites received by the bot.
+		/// </summary>
+		/// <param name="bot">Bot object related to this callback.</param>
+		/// <param name="steamID">64-bit Steam identificator of the user that sent a friend request, or a group that the bot has been invited to.</param>
+		/// <returns>True if the request should be accepted as part of this plugin, false otherwise.</returns>
+		[NotNull]
+		Task<bool> OnBotFriendRequest([NotNull] Bot bot, ulong steamID);
+	}
+}

ArchiSteamFarm/Trading.cs

@@ -152,8 +152,11 @@ namespace ArchiSteamFarm {
 			Dictionary<(uint AppID, Steam.Asset.EType Type), List<uint>> finalSets = GetInventorySets(inventory);
 
 			// Once we have both states, we can check overall fairness
-			foreach (((uint AppID, Steam.Asset.EType Type) set, List<uint> afterAmounts) in finalSets) {
-				List<uint> beforeAmounts = initialSets[set];
+			foreach (((uint AppID, Steam.Asset.EType Type) set, List<uint> beforeAmounts) in initialSets) {
+				if (!finalSets.TryGetValue(set, out List<uint> afterAmounts)) {
+					// If we have no info about this set, then it has to be a bad one
+					return false;
+				}
 
 				// If amount of unique items in the set decreases, this is always a bad trade (e.g. 1 1 -> 0 2)
 				if (afterAmounts.Count < beforeAmounts.Count) {

ArchiSteamFarm/lib/SteamKit2.xml

@@ -2013,6 +2013,7 @@
             </param>
             <returns>A <see cref="T:SteamKit2.CDNClient.DepotChunk"/> instance that contains the data for the given chunk.</returns>
             <exception cref="T:System.ArgumentNullException">chunk's <see cref="P:SteamKit2.DepotManifest.ChunkData.ChunkID"/> was null.</exception>
+            <exception cref="T:System.IO.InvalidDataException">Thrown if the downloaded data does not match the expected length.</exception>
         </member>
         <member name="M:SteamKit2.CDNClient.DownloadDepotChunkAsync(System.UInt32,SteamKit2.DepotManifest.ChunkData,System.String,System.String,System.Byte[])">
             <summary>
@@ -2035,6 +2036,7 @@
             This is used for decrypting filenames (if needed) in depot manifests, and processing depot chunks.
             </param>
             <exception cref="T:System.ArgumentNullException">chunk's <see cref="P:SteamKit2.DepotManifest.ChunkData.ChunkID"/> was null.</exception>
+            <exception cref="T:System.IO.InvalidDataException">Thrown if the downloaded data does not match the expected length.</exception>
         </member>
         <member name="M:SteamKit2.CDNClient.Dispose">
             <summary>

tools/NetHookAnalyzer2/SteamKit2.xml

@@ -2013,6 +2013,7 @@
             </param>
             <returns>A <see cref="T:SteamKit2.CDNClient.DepotChunk"/> instance that contains the data for the given chunk.</returns>
             <exception cref="T:System.ArgumentNullException">chunk's <see cref="P:SteamKit2.DepotManifest.ChunkData.ChunkID"/> was null.</exception>
+            <exception cref="T:System.IO.InvalidDataException">Thrown if the downloaded data does not match the expected length.</exception>
         </member>
         <member name="M:SteamKit2.CDNClient.DownloadDepotChunkAsync(System.UInt32,SteamKit2.DepotManifest.ChunkData,System.String,System.String,System.Byte[])">
             <summary>
@@ -2035,6 +2036,7 @@
             This is used for decrypting filenames (if needed) in depot manifests, and processing depot chunks.
             </param>
             <exception cref="T:System.ArgumentNullException">chunk's <see cref="P:SteamKit2.DepotManifest.ChunkData.ChunkID"/> was null.</exception>
+            <exception cref="T:System.IO.InvalidDataException">Thrown if the downloaded data does not match the expected length.</exception>
         </member>
         <member name="M:SteamKit2.CDNClient.Dispose">
             <summary>