Translations update

Bumps [ASF-WebConfigGenerator](https://github.com/JustArchiNET/ASF-WebConfigGenerator) from `75e2e8e` to `a366c05`.
- [Release notes](https://github.com/JustArchiNET/ASF-WebConfigGenerator/releases)
- [Commits](75e2e8eec6...a366c05e95)

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

ArchiSteamFarm/Actions.cs

@@ -326,24 +326,6 @@ namespace ArchiSteamFarm {
 			return (true, Strings.BotLootingSuccess);
 		}
 
-		[Obsolete]
-		[PublicAPI]
-		public async Task<(bool Success, string Message)> SendTradeOffer(uint appID = Steam.Asset.SteamAppID, ulong contextID = Steam.Asset.SteamCommunityContextID, ulong targetSteamID = 0, string tradeToken = null, IReadOnlyCollection<uint> wantedRealAppIDs = null, IReadOnlyCollection<uint> unwantedRealAppIDs = null, IReadOnlyCollection<Steam.Asset.EType> wantedTypes = null) {
-			if ((appID == 0) || (contextID == 0)) {
-				Bot.ArchiLogger.LogNullError(nameof(appID) + " || " + nameof(contextID));
-
-				return (false, string.Format(Strings.ErrorObjectIsNull, nameof(appID) + " || " + nameof(contextID)));
-			}
-
-			if ((wantedRealAppIDs?.Count == 0) || (unwantedRealAppIDs?.Count == 0) || (wantedTypes?.Count == 0)) {
-				Bot.ArchiLogger.LogNullError(nameof(wantedRealAppIDs) + " || " + nameof(unwantedRealAppIDs) + " || " + nameof(wantedTypes));
-
-				return (false, string.Format(Strings.ErrorObjectIsNull, nameof(wantedRealAppIDs) + " || " + nameof(unwantedRealAppIDs) + " || " + nameof(wantedTypes)));
-			}
-
-			return await SendInventory(appID, contextID, targetSteamID, tradeToken, item => (wantedRealAppIDs?.Contains(item.RealAppID) != false) && (unwantedRealAppIDs?.Contains(item.RealAppID) != true) && (wantedTypes?.Contains(item.Type) != false)).ConfigureAwait(false);
-		}
-
 		[PublicAPI]
 		public (bool Success, string Message) Start() {
 			if (Bot.KeepRunning) {

ArchiSteamFarm/ArchiHandler.cs

@@ -70,32 +70,44 @@ namespace ArchiSteamFarm {
 			LastPacketReceived = DateTime.UtcNow;
 
 			switch (packetMsg.MsgType) {
+				case EMsg.ClientCommentNotifications:
+					ClientMsgProtobuf<CMsgClientCommentNotifications> commentNotifications = new ClientMsgProtobuf<CMsgClientCommentNotifications>(packetMsg);
+					Client.PostCallback(new UserNotificationsCallback(packetMsg.TargetJobID, commentNotifications.Body));
+
+					break;
 				case EMsg.ClientItemAnnouncements:
-					HandleItemAnnouncements(packetMsg);
+					ClientMsgProtobuf<CMsgClientItemAnnouncements> itemAnnouncements = new ClientMsgProtobuf<CMsgClientItemAnnouncements>(packetMsg);
+					Client.PostCallback(new UserNotificationsCallback(packetMsg.TargetJobID, itemAnnouncements.Body));
 
 					break;
 				case EMsg.ClientPlayingSessionState:
-					HandlePlayingSessionState(packetMsg);
+					ClientMsgProtobuf<CMsgClientPlayingSessionState> playingSessionState = new ClientMsgProtobuf<CMsgClientPlayingSessionState>(packetMsg);
+					Client.PostCallback(new PlayingSessionStateCallback(packetMsg.TargetJobID, playingSessionState.Body));
 
 					break;
 				case EMsg.ClientPurchaseResponse:
-					HandlePurchaseResponse(packetMsg);
+					ClientMsgProtobuf<CMsgClientPurchaseResponse> purchaseResponse = new ClientMsgProtobuf<CMsgClientPurchaseResponse>(packetMsg);
+					Client.PostCallback(new PurchaseResponseCallback(packetMsg.TargetJobID, purchaseResponse.Body));
 
 					break;
 				case EMsg.ClientRedeemGuestPassResponse:
-					HandleRedeemGuestPassResponse(packetMsg);
+					ClientMsgProtobuf<CMsgClientRedeemGuestPassResponse> redeemGuestPassResponse = new ClientMsgProtobuf<CMsgClientRedeemGuestPassResponse>(packetMsg);
+					Client.PostCallback(new RedeemGuestPassResponseCallback(packetMsg.TargetJobID, redeemGuestPassResponse.Body));
 
 					break;
 				case EMsg.ClientSharedLibraryLockStatus:
-					HandleSharedLibraryLockStatus(packetMsg);
+					ClientMsgProtobuf<CMsgClientSharedLibraryLockStatus> sharedLibraryLockStatus = new ClientMsgProtobuf<CMsgClientSharedLibraryLockStatus>(packetMsg);
+					Client.PostCallback(new SharedLibraryLockStatusCallback(packetMsg.TargetJobID, sharedLibraryLockStatus.Body));
 
 					break;
 				case EMsg.ClientUserNotifications:
-					HandleUserNotifications(packetMsg);
+					ClientMsgProtobuf<CMsgClientUserNotifications> userNotifications = new ClientMsgProtobuf<CMsgClientUserNotifications>(packetMsg);
+					Client.PostCallback(new UserNotificationsCallback(packetMsg.TargetJobID, userNotifications.Body));
 
 					break;
 				case EMsg.ClientVanityURLChangedNotification:
-					HandleVanityURLChangedNotification(packetMsg);
+					ClientMsgProtobuf<CMsgClientVanityURLChangedNotification> vanityURLChangedNotification = new ClientMsgProtobuf<CMsgClientVanityURLChangedNotification>(packetMsg);
+					Client.PostCallback(new VanityURLChangedCallback(packetMsg.TargetJobID, vanityURLChangedNotification.Body));
 
 					break;
 			}
@@ -629,83 +641,6 @@ namespace ArchiSteamFarm {
 			Client.Send(request);
 		}
 
-		private void HandleItemAnnouncements(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientItemAnnouncements> response = new ClientMsgProtobuf<CMsgClientItemAnnouncements>(packetMsg);
-			Client.PostCallback(new UserNotificationsCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandlePlayingSessionState(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientPlayingSessionState> response = new ClientMsgProtobuf<CMsgClientPlayingSessionState>(packetMsg);
-			Client.PostCallback(new PlayingSessionStateCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandlePurchaseResponse(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientPurchaseResponse> response = new ClientMsgProtobuf<CMsgClientPurchaseResponse>(packetMsg);
-			Client.PostCallback(new PurchaseResponseCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandleRedeemGuestPassResponse(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientRedeemGuestPassResponse> response = new ClientMsgProtobuf<CMsgClientRedeemGuestPassResponse>(packetMsg);
-			Client.PostCallback(new RedeemGuestPassResponseCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandleSharedLibraryLockStatus(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientSharedLibraryLockStatus> response = new ClientMsgProtobuf<CMsgClientSharedLibraryLockStatus>(packetMsg);
-			Client.PostCallback(new SharedLibraryLockStatusCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandleUserNotifications(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientUserNotifications> response = new ClientMsgProtobuf<CMsgClientUserNotifications>(packetMsg);
-			Client.PostCallback(new UserNotificationsCallback(packetMsg.TargetJobID, response.Body));
-		}
-
-		private void HandleVanityURLChangedNotification(IPacketMsg packetMsg) {
-			if (packetMsg == null) {
-				ArchiLogger.LogNullError(nameof(packetMsg));
-
-				return;
-			}
-
-			ClientMsgProtobuf<CMsgClientVanityURLChangedNotification> response = new ClientMsgProtobuf<CMsgClientVanityURLChangedNotification>(packetMsg);
-			Client.PostCallback(new VanityURLChangedCallback(packetMsg.TargetJobID, response.Body));
-		}
-
 		[SuppressMessage("ReSharper", "MemberCanBeInternal")]
 		public sealed class PurchaseResponseCallback : CallbackMsg {
 			public readonly Dictionary<uint, string> Items;
@@ -837,6 +772,15 @@ namespace ArchiSteamFarm {
 				Notifications = new Dictionary<EUserNotification, uint>(1) { { EUserNotification.Items, msg.count_new_items } };
 			}
 
+			internal UserNotificationsCallback([JetBrains.Annotations.NotNull] JobID jobID, [JetBrains.Annotations.NotNull] CMsgClientCommentNotifications msg) {
+				if ((jobID == null) || (msg == null)) {
+					throw new ArgumentNullException(nameof(jobID) + " || " + nameof(msg));
+				}
+
+				JobID = jobID;
+				Notifications = new Dictionary<EUserNotification, uint>(1) { { EUserNotification.Comments, msg.count_new_comments + msg.count_new_comments_owner + msg.count_new_comments_subscriptions } };
+			}
+
 			[PublicAPI]
 			public enum EUserNotification : byte {
 				Unknown,

ArchiSteamFarm/ArchiSteamFarm.csproj

@@ -2,14 +2,14 @@
 
   <PropertyGroup>
     <ApplicationIcon>ASF.ico</ApplicationIcon>
-    <AssemblyVersion>4.2.0.1</AssemblyVersion>
+    <AssemblyVersion>4.2.0.2</AssemblyVersion>
     <Authors>JustArchi</Authors>
     <Company>JustArchi</Company>
     <Copyright>Copyright © ArchiSteamFarm 2015-2020</Copyright>
     <DefaultItemExcludes>$(DefaultItemExcludes);config/**;debug/**;out/**;overlay/**</DefaultItemExcludes>
     <Description>ASF is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously.</Description>
     <ErrorReport>none</ErrorReport>
-    <FileVersion>4.2.0.1</FileVersion>
+    <FileVersion>4.2.0.2</FileVersion>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <LangVersion>8.0</LangVersion>
     <NoWarn>1591</NoWarn>

ArchiSteamFarm/ArchiWebHandler.cs

@@ -121,37 +121,6 @@ namespace ArchiSteamFarm {
 			return string.IsNullOrEmpty(VanityURL) ? "/profiles/" + Bot.SteamID : "/id/" + VanityURL;
 		}
 
-		[ItemCanBeNull]
-		[Obsolete]
-		[PublicAPI]
-		public async Task<HashSet<Steam.Asset>> GetInventory(ulong steamID = 0, uint appID = Steam.Asset.SteamAppID, ulong contextID = Steam.Asset.SteamCommunityContextID, bool? marketable = null, bool? tradable = null, IReadOnlyCollection<uint> wantedRealAppIDs = null, IReadOnlyCollection<uint> unwantedRealAppIDs = null, IReadOnlyCollection<Steam.Asset.EType> wantedTypes = null, IReadOnlyCollection<(uint RealAppID, Steam.Asset.EType Type, Steam.Asset.ERarity Rarity)> wantedSets = null) {
-			if ((appID == 0) || (contextID == 0)) {
-				Bot.ArchiLogger.LogNullError(nameof(appID) + " || " + nameof(contextID));
-
-				return null;
-			}
-
-			Bot.ArchiLogger.LogGenericWarning(string.Format(Strings.WarningDeprecated, nameof(GetInventory) + " (" + nameof(Plugins) + ")", nameof(GetInventoryAsync)));
-
-			try {
-				return await GetInventoryAsync(steamID, appID, contextID).Where(
-					item =>
-						(!marketable.HasValue || (item.Marketable == marketable.Value)) &&
-						(!tradable.HasValue || (item.Tradable == tradable.Value)) &&
-						(wantedRealAppIDs?.Contains(item.RealAppID) != false) &&
-						(unwantedRealAppIDs?.Contains(item.RealAppID) != true) &&
-						(wantedTypes?.Contains(item.Type) != false) &&
-						(wantedSets?.Contains((item.RealAppID, item.Type, item.Rarity)) != false)
-				).ToHashSetAsync().ConfigureAwait(false);
-			} catch (HttpRequestException) {
-				return null;
-			} catch (Exception e) {
-				Bot.ArchiLogger.LogGenericException(e);
-
-				return null;
-			}
-		}
-
 		[JetBrains.Annotations.NotNull]
 		[PublicAPI]
 		[SuppressMessage("ReSharper", "FunctionComplexityOverflow")]

ArchiSteamFarm/Localization/Strings.el-GR.resx

@@ -643,7 +643,10 @@ StackTrace:
   
   
   
-  
+  <data name="BotLevel" xml:space="preserve">
+    <value>Το bot βρίσκεται στο επίπεδο {0}.</value>
+    <comment>{0} will be replaced by bot's level</comment>
+  </data>
   
   
   <data name="ErrorAborted" xml:space="preserve">
@@ -651,7 +654,10 @@ StackTrace:
   </data>
   
   
-  
+  <data name="PluginLoaded" xml:space="preserve">
+    <value>{0} φορτώθηκε με επιτυχία!</value>
+    <comment>{0} will be replaced by the name of the custom ASF plugin</comment>
+  </data>
   <data name="PluginLoading" xml:space="preserve">
     <value>Φόρτωση του {0} Εκδ.{1}...</value>
     <comment>{0} will be replaced by the name of the custom ASF plugin, {1} will be replaced by its version</comment>

ArchiSteamFarm/WebBrowser.cs

@@ -105,9 +105,44 @@ namespace ArchiSteamFarm {
 				return null;
 			}
 
-			using StreamResponse response = await UrlGetToStream(request, referer, requestOptions, maxTries).ConfigureAwait(false);
+			HtmlDocumentResponse result = null;
 
-			return response != null ? await HtmlDocumentResponse.Create(response).ConfigureAwait(false) : null;
+			for (int i = 0; i < maxTries; i++) {
+				using StreamResponse response = await UrlGetToStream(request, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
+
+				if (response == null) {
+					return null;
+				}
+
+				if (response.StatusCode.IsClientErrorCode()) {
+					if (requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
+						result = new HtmlDocumentResponse(response);
+					}
+
+					break;
+				}
+
+				if (response.Content == null) {
+					continue;
+				}
+
+				try {
+					result = await HtmlDocumentResponse.Create(response).ConfigureAwait(false);
+				} catch (Exception e) {
+					ArchiLogger.LogGenericWarningException(e);
+
+					continue;
+				}
+
+				return result;
+			}
+
+			if (maxTries > 1) {
+				ArchiLogger.LogGenericWarning(string.Format(Strings.ErrorRequestFailedTooManyTimes, maxTries));
+				ArchiLogger.LogGenericDebug(string.Format(Strings.ErrorFailingRequest, request));
+			}
+
+			return result;
 		}
 
 		[ItemCanBeNull]
@@ -149,13 +184,9 @@ namespace ArchiSteamFarm {
 					JsonSerializer serializer = new JsonSerializer();
 
 					obj = serializer.Deserialize<T>(jsonReader);
-				} catch (JsonException e) {
+				} catch (Exception e) {
 					ArchiLogger.LogGenericWarningException(e);
 
-					if (Debugging.IsUserDebugging) {
-						ArchiLogger.LogGenericDebug(string.Format(Strings.Content, response.Content));
-					}
-
 					continue;
 				}
 
@@ -305,9 +336,44 @@ namespace ArchiSteamFarm {
 				return null;
 			}
 
-			using StreamResponse response = await UrlPostToStream(request, data, referer, requestOptions, maxTries).ConfigureAwait(false);
+			HtmlDocumentResponse result = null;
 
-			return response != null ? await HtmlDocumentResponse.Create(response).ConfigureAwait(false) : null;
+			for (int i = 0; i < maxTries; i++) {
+				using StreamResponse response = await UrlPostToStream(request, data, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
+
+				if (response == null) {
+					return null;
+				}
+
+				if (response.StatusCode.IsClientErrorCode()) {
+					if (requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
+						result = new HtmlDocumentResponse(response);
+					}
+
+					break;
+				}
+
+				if (response.Content == null) {
+					continue;
+				}
+
+				try {
+					result = await HtmlDocumentResponse.Create(response).ConfigureAwait(false);
+				} catch (Exception e) {
+					ArchiLogger.LogGenericWarningException(e);
+
+					continue;
+				}
+
+				return result;
+			}
+
+			if (maxTries > 1) {
+				ArchiLogger.LogGenericWarning(string.Format(Strings.ErrorRequestFailedTooManyTimes, maxTries));
+				ArchiLogger.LogGenericDebug(string.Format(Strings.ErrorFailingRequest, request));
+			}
+
+			return result;
 		}
 
 		[ItemCanBeNull]
@@ -348,13 +414,9 @@ namespace ArchiSteamFarm {
 					JsonSerializer serializer = new JsonSerializer();
 
 					obj = serializer.Deserialize<T>(jsonReader);
-				} catch (JsonException e) {
+				} catch (Exception e) {
 					ArchiLogger.LogGenericWarningException(e);
 
-					if (Debugging.IsUserDebugging) {
-						ArchiLogger.LogGenericDebug(string.Format(Strings.Content, response.Content));
-					}
-
 					continue;
 				}
 
@@ -411,7 +473,7 @@ namespace ArchiSteamFarm {
 				const byte printPercentage = 10;
 				const byte maxBatches = 99 / printPercentage;
 
-				using StreamResponse response = await UrlGetToStream(request, referer, requestOptions).ConfigureAwait(false);
+				using StreamResponse response = await UrlGetToStream(request, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
 
 				if (response == null) {
 					continue;
@@ -749,18 +811,37 @@ namespace ArchiSteamFarm {
 			[PublicAPI]
 			public readonly IDocument Content;
 
-			private HtmlDocumentResponse(BasicResponse streamResponse, IDocument document) : base(streamResponse) => Content = document;
+			internal HtmlDocumentResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) {
+				if (basicResponse == null) {
+					throw new ArgumentNullException(nameof(basicResponse));
+				}
+			}
 
-			[ItemNotNull]
+			private HtmlDocumentResponse([NotNull] StreamResponse streamResponse, [NotNull] IDocument document) : this(streamResponse) {
+				if ((streamResponse == null) || (document == null)) {
+					throw new ArgumentNullException(nameof(streamResponse) + " || " + nameof(document));
+				}
+
+				Content = document;
+			}
+
+			[ItemCanBeNull]
 			internal static async Task<HtmlDocumentResponse> Create([NotNull] StreamResponse streamResponse) {
 				if (streamResponse == null) {
 					throw new ArgumentNullException(nameof(streamResponse));
 				}
 
 				IBrowsingContext context = BrowsingContext.New(Configuration.Default.WithXPath());
-				IDocument document = await context.OpenAsync(req => req.Content(streamResponse.Content, true)).ConfigureAwait(false);
 
-				return new HtmlDocumentResponse(streamResponse, document);
+				try {
+					IDocument document = await context.OpenAsync(req => req.Content(streamResponse.Content, true)).ConfigureAwait(false);
+
+					return new HtmlDocumentResponse(streamResponse, document);
+				} catch (Exception e) {
+					ASF.ArchiLogger.LogGenericWarningException(e);
+
+					return null;
+				}
 			}
 		}
 
@@ -768,7 +849,7 @@ namespace ArchiSteamFarm {
 			[PublicAPI]
 			public readonly T Content;
 
-			internal ObjectResponse([NotNull] StreamResponse streamResponse, T content) : base(streamResponse) {
+			internal ObjectResponse([NotNull] StreamResponse streamResponse, T content) : this(streamResponse) {
 				if (streamResponse == null) {
 					throw new ArgumentNullException(nameof(streamResponse));
 				}
@@ -776,14 +857,18 @@ namespace ArchiSteamFarm {
 				Content = content;
 			}
 
-			internal ObjectResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) { }
+			internal ObjectResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) {
+				if (basicResponse == null) {
+					throw new ArgumentNullException(nameof(basicResponse));
+				}
+			}
 		}
 
 		public sealed class XmlDocumentResponse : BasicResponse {
 			[PublicAPI]
 			public readonly XmlDocument Content;
 
-			internal XmlDocumentResponse([NotNull] StreamResponse streamResponse, XmlDocument content) : base(streamResponse) {
+			internal XmlDocumentResponse([NotNull] StreamResponse streamResponse, XmlDocument content) : this(streamResponse) {
 				if (streamResponse == null) {
 					throw new ArgumentNullException(nameof(streamResponse));
 				}
@@ -791,7 +876,11 @@ namespace ArchiSteamFarm {
 				Content = content;
 			}
 
-			internal XmlDocumentResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) { }
+			internal XmlDocumentResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) {
+				if (basicResponse == null) {
+					throw new ArgumentNullException(nameof(basicResponse));
+				}
+			}
 		}
 
 		[Flags]
@@ -803,7 +892,7 @@ namespace ArchiSteamFarm {
 		internal sealed class BinaryResponse : BasicResponse {
 			internal readonly byte[] Content;
 
-			internal BinaryResponse([NotNull] BasicResponse basicResponse, [NotNull] byte[] content) : base(basicResponse) {
+			internal BinaryResponse([NotNull] BasicResponse basicResponse, [NotNull] byte[] content) : this(basicResponse) {
 				if ((basicResponse == null) || (content == null)) {
 					throw new ArgumentNullException(nameof(basicResponse) + " || " + nameof(content));
 				}
@@ -811,7 +900,11 @@ namespace ArchiSteamFarm {
 				Content = content;
 			}
 
-			internal BinaryResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) { }
+			internal BinaryResponse([NotNull] BasicResponse basicResponse) : base(basicResponse) {
+				if (basicResponse == null) {
+					throw new ArgumentNullException(nameof(basicResponse));
+				}
+			}
 		}
 
 		internal sealed class StreamResponse : BasicResponse, IDisposable {
@@ -820,20 +913,26 @@ namespace ArchiSteamFarm {
 
 			private readonly HttpResponseMessage ResponseMessage;
 
-			internal StreamResponse([NotNull] HttpResponseMessage httpResponseMessage, [NotNull] Stream content) : base(httpResponseMessage) {
+			internal StreamResponse([NotNull] HttpResponseMessage httpResponseMessage, [NotNull] Stream content) : this(httpResponseMessage) {
 				if ((httpResponseMessage == null) || (content == null)) {
 					throw new ArgumentNullException(nameof(httpResponseMessage) + " || " + nameof(content));
 				}
 
 				Content = content;
+			}
+
+			internal StreamResponse([NotNull] HttpResponseMessage httpResponseMessage) : base(httpResponseMessage) {
+				if (httpResponseMessage == null) {
+					throw new ArgumentNullException(nameof(httpResponseMessage));
+				}
+
 				Length = (uint) httpResponseMessage.Content.Headers.ContentLength.GetValueOrDefault();
 				ResponseMessage = httpResponseMessage;
 			}
 
-			internal StreamResponse([NotNull] HttpResponseMessage httpResponseMessage) : base(httpResponseMessage) { }
-
 			public void Dispose() {
-				Content.Dispose();
+				Content?.Dispose();
+
 				ResponseMessage.Dispose();
 			}
 		}
@@ -841,7 +940,7 @@ namespace ArchiSteamFarm {
 		internal sealed class StringResponse : BasicResponse {
 			internal readonly string Content;
 
-			internal StringResponse([NotNull] HttpResponseMessage httpResponseMessage, [NotNull] string content) : base(httpResponseMessage) {
+			internal StringResponse([NotNull] HttpResponseMessage httpResponseMessage, [NotNull] string content) : this(httpResponseMessage) {
 				if ((httpResponseMessage == null) || (content == null)) {
 					throw new ArgumentNullException(nameof(httpResponseMessage) + " || " + nameof(content));
 				}
@@ -849,7 +948,11 @@ namespace ArchiSteamFarm {
 				Content = content;
 			}
 
-			internal StringResponse([NotNull] HttpResponseMessage httpResponseMessage) : base(httpResponseMessage) { }
+			internal StringResponse([NotNull] HttpResponseMessage httpResponseMessage) : base(httpResponseMessage) {
+				if (httpResponseMessage == null) {
+					throw new ArgumentNullException(nameof(httpResponseMessage));
+				}
+			}
 		}
 	}
 }