85 lines
2.1 KiB
C#
85 lines
2.1 KiB
C#
/*
|
|
* Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
|
|
*
|
|
* 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 System;
|
|
using System.Diagnostics;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Threading;
|
|
using SafeExamBrowser.Contracts.Logging;
|
|
using SafeExamBrowser.Contracts.Monitoring;
|
|
using SafeExamBrowser.WindowsApi;
|
|
|
|
namespace SafeExamBrowser.Monitoring.Processes
|
|
{
|
|
public class ProcessMonitor : IProcessMonitor
|
|
{
|
|
private ILogger logger;
|
|
|
|
public ProcessMonitor(ILogger logger)
|
|
{
|
|
this.logger = logger;
|
|
}
|
|
|
|
public void StartExplorerShell()
|
|
{
|
|
var process = new Process();
|
|
var explorerPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "explorer.exe");
|
|
|
|
logger.Info("Restarting explorer shell...");
|
|
|
|
process.StartInfo.CreateNoWindow = true;
|
|
process.StartInfo.FileName = explorerPath;
|
|
process.Start();
|
|
|
|
while (User32.GetShellWindowHandle() == IntPtr.Zero)
|
|
{
|
|
Thread.Sleep(20);
|
|
}
|
|
|
|
process.Refresh();
|
|
logger.Info($"Explorer shell successfully started with PID = {process.Id}.");
|
|
process.Close();
|
|
}
|
|
|
|
public void StartMonitoringExplorer()
|
|
{
|
|
// TODO
|
|
}
|
|
|
|
public void StopMonitoringExplorer()
|
|
{
|
|
// TODO
|
|
}
|
|
|
|
public void CloseExplorerShell()
|
|
{
|
|
var processId = User32.GetShellProcessId();
|
|
var explorerProcesses = Process.GetProcessesByName("explorer");
|
|
var shellProcess = explorerProcesses.FirstOrDefault(p => p.Id == processId);
|
|
|
|
if (shellProcess != null)
|
|
{
|
|
logger.Info($"Found explorer shell processes with PID = {processId}. Sending close message...");
|
|
User32.PostCloseMessageToShell();
|
|
|
|
while (!shellProcess.HasExited)
|
|
{
|
|
shellProcess.Refresh();
|
|
Thread.Sleep(20);
|
|
}
|
|
|
|
logger.Info($"Successfully terminated explorer shell process with PID = {processId}.");
|
|
}
|
|
else
|
|
{
|
|
logger.Info("The explorer shell seems to already be terminated. Skipping this step...");
|
|
}
|
|
}
|
|
}
|
|
}
|