Restore SEBPatch

SafeExamBrowser.Monitoring.Contracts/System/Events/SentinelEventArgs.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/.
+ */
+
+namespace SafeExamBrowser.Monitoring.Contracts.System.Events
+{
+	/// <summary>
+	/// The event arguments used for the <see cref="SentinelEventHandler"/> fired by the <see cref="ISystemSentinel"/>.
+	/// </summary>
+	public class SentinelEventArgs
+	{
+		/// <summary>
+		/// Indicates whether a configuration or state change shall be allowed.
+		/// </summary>
+		public bool Allow { get; set; }
+	}
+}

SafeExamBrowser.Monitoring.Contracts/System/Events/SentinelEventHandler.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/.
+ */
+
+namespace SafeExamBrowser.Monitoring.Contracts.System.Events
+{
+	/// <summary>
+	/// The default handler for events of the <see cref="ISystemSentinel"/>. Normally indicates that a configuration or state has changed.
+	/// </summary>
+	public delegate void SentinelEventHandler(SentinelEventArgs args);
+}

SafeExamBrowser.Monitoring.Contracts/System/Events/SessionChangedEventHandler.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/.
+ */
+
+namespace SafeExamBrowser.Monitoring.Contracts.System.Events
+{
+	/// <summary>
+	/// Indicates that the active user session of the operating system has changed.
+	/// </summary>
+	public delegate void SessionChangedEventHandler();
+}

SafeExamBrowser.Monitoring.Contracts/System/ISystemSentinel.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.Monitoring.Contracts.System.Events;
+
+namespace SafeExamBrowser.Monitoring.Contracts.System
+{
+	/// <summary>
+	/// Provides the possibility to suppress and surveil various system components and functionalities.
+	/// </summary>
+	public interface ISystemSentinel
+	{
+		/// <summary>
+		/// Event fired when the cursor configuration has changed.
+		/// </summary>
+		event SentinelEventHandler CursorChanged;
+
+		/// <summary>
+		/// Event fired when the ease of access configuration has changed.
+		/// </summary>
+		event SentinelEventHandler EaseOfAccessChanged;
+
+		/// <summary>
+		/// Event fired when the active user session has changed.
+		/// </summary>
+		event SessionChangedEventHandler SessionChanged;
+
+		/// <summary>
+		/// Event fired when the sticky keys state has changed.
+		/// </summary>
+		event SentinelEventHandler StickyKeysChanged;
+
+		/// <summary>
+		/// Attempts to disable the sticky keys. Returns <c>true</c> if successful, otherwise <c>false</c>.
+		/// </summary>
+		bool DisableStickyKeys();
+
+		/// <summary>
+		/// Attempts to enable the sticky keys. Returns <c>true</c> if successful, otherwise <c>false</c>.
+		/// </summary>
+		bool EnableStickyKeys();
+
+		/// <summary>
+		/// Attempts to revert the sticky keys to their initial state. Returns <c>true</c> if successful, otherwise <c>false</c>.
+		/// </summary>
+		bool RevertStickyKeys();
+
+		/// <summary>
+		/// Starts monitoring the cursor configuration.
+		/// </summary>
+		void StartMonitoringCursors();
+
+		/// <summary>
+		/// Starts monitoring the ease of access configuration.
+		/// </summary>
+		void StartMonitoringEaseOfAccess();
+
+		/// <summary>
+		/// Starts monitoring the sticky keys state.
+		/// </summary>
+		void StartMonitoringStickyKeys();
+
+		/// <summary>
+		/// Starts monitoring the system events.
+		/// </summary>
+		void StartMonitoringSystemEvents();
+
+		/// <summary>
+		/// Stops all monitoring operations.
+		/// </summary>
+		void StopMonitoring();
+
+		/// <summary>
+		/// Verifies the cursor configuration. Returns <c>true</c> if permitted, otherwise <c>false</c>.
+		/// </summary>
+		bool VerifyCursors();
+
+		/// <summary>
+		/// Verifies the ease of access configuration. Returns <c>true</c> if permitted, otherwise <c>false</c>.
+		/// </summary>
+		bool VerifyEaseOfAccess();
+	}
+}