62 lines
1.8 KiB
C#
62 lines
1.8 KiB
C#
/*
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* Copyright (c) 2025 ETH Zürich, IT Services
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using SafeExamBrowser.Core.Contracts.OperationModel;
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using SafeExamBrowser.Core.Contracts.OperationModel.Events;
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using SafeExamBrowser.I18n.Contracts;
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using SafeExamBrowser.Monitoring.Contracts;
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using SafeExamBrowser.Settings.Security;
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using SafeExamBrowser.UserInterface.Contracts.MessageBox;
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namespace SafeExamBrowser.Runtime.Operations.Session
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{
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internal class VirtualMachineOperation : SessionOperation
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{
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private readonly IVirtualMachineDetector detector;
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public override event StatusChangedEventHandler StatusChanged;
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public VirtualMachineOperation(Dependencies dependencies, IVirtualMachineDetector detector) : base(dependencies)
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{
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this.detector = detector;
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}
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public override OperationResult Perform()
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{
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return ValidatePolicy();
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}
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public override OperationResult Repeat()
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{
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return ValidatePolicy();
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}
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public override OperationResult Revert()
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{
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return OperationResult.Success;
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}
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private OperationResult ValidatePolicy()
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{
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var result = OperationResult.Success;
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Logger.Info($"Validating virtual machine policy...");
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StatusChanged?.Invoke(TextKey.OperationStatus_ValidateVirtualMachinePolicy);
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if (Context.Next.Settings.Security.VirtualMachinePolicy == VirtualMachinePolicy.Deny && detector.IsVirtualMachine())
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{
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result = OperationResult.Aborted;
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Logger.Error("Detected virtual machine while SEB is not allowed to be run in a virtual machine! Aborting...");
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ShowMessageBox(TextKey.MessageBox_VirtualMachineNotAllowed, TextKey.MessageBox_VirtualMachineNotAllowedTitle, icon: MessageBoxIcon.Error);
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}
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return result;
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}
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}
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}
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