Restore SEBPatch

SafeExamBrowser.Runtime/Operations/SessionInitializationOperation.cs

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+/*
+ * Copyright (c) 2024 ETH Zürich, IT Services
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using SafeExamBrowser.Communication.Contracts.Hosts;
+using SafeExamBrowser.Configuration.Contracts;
+using SafeExamBrowser.Core.Contracts.OperationModel;
+using SafeExamBrowser.Core.Contracts.OperationModel.Events;
+using SafeExamBrowser.I18n.Contracts;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.SystemComponents.Contracts;
+
+namespace SafeExamBrowser.Runtime.Operations
+{
+	internal class SessionInitializationOperation : SessionOperation
+	{
+		private IConfigurationRepository configuration;
+		private IFileSystem fileSystem;
+		private ILogger logger;
+		private IRuntimeHost runtimeHost;
+
+		public override event ActionRequiredEventHandler ActionRequired { add { } remove { } }
+		public override event StatusChangedEventHandler StatusChanged;
+
+		public SessionInitializationOperation(
+			IConfigurationRepository configuration,
+			IFileSystem fileSystem,
+			ILogger logger,
+			IRuntimeHost runtimeHost,
+			SessionContext sessionContext) : base(sessionContext)
+		{
+			this.configuration = configuration;
+			this.fileSystem = fileSystem;
+			this.logger = logger;
+			this.runtimeHost = runtimeHost;
+		}
+
+		public override OperationResult Perform()
+		{
+			InitializeSessionConfiguration();
+
+			return OperationResult.Success;
+		}
+
+		public override OperationResult Repeat()
+		{
+			InitializeSessionConfiguration();
+
+			return OperationResult.Success;
+		}
+
+		public override OperationResult Revert()
+		{
+			FinalizeSessionConfiguration();
+
+			return OperationResult.Success;
+		}
+
+		private void InitializeSessionConfiguration()
+		{
+			logger.Info("Initializing new session configuration...");
+			StatusChanged?.Invoke(TextKey.OperationStatus_InitializeSession);
+
+			Context.Next = configuration.InitializeSessionConfiguration();
+
+			logger.Info($" -> Client-ID: {Context.Next.AppConfig.ClientId}");
+			logger.Info($" -> Runtime-ID: {Context.Next.AppConfig.RuntimeId}");
+			logger.Info($" -> Session-ID: {Context.Next.SessionId}");
+
+			fileSystem.CreateDirectory(Context.Next.AppConfig.TemporaryDirectory);
+		}
+
+		private void FinalizeSessionConfiguration()
+		{
+			Context.Current = null;
+			Context.Next = null;
+		}
+	}
+}