136 lines
3.3 KiB
C#
136 lines
3.3 KiB
C#
/*
|
|
* Copyright (c) 2019 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.Collections.Generic;
|
|
using System.Linq;
|
|
using SafeExamBrowser.Client.Operations.Events;
|
|
using SafeExamBrowser.Core.Contracts.OperationModel;
|
|
using SafeExamBrowser.Core.Contracts.OperationModel.Events;
|
|
using SafeExamBrowser.I18n.Contracts;
|
|
using SafeExamBrowser.Logging.Contracts;
|
|
using SafeExamBrowser.Monitoring.Contracts.Applications;
|
|
using SafeExamBrowser.Settings;
|
|
using SafeExamBrowser.Settings.Applications;
|
|
|
|
namespace SafeExamBrowser.Client.Operations
|
|
{
|
|
internal class ApplicationOperation : ClientOperation
|
|
{
|
|
private ILogger logger;
|
|
private IApplicationMonitor applicationMonitor;
|
|
|
|
public override event ActionRequiredEventHandler ActionRequired;
|
|
public override event StatusChangedEventHandler StatusChanged;
|
|
|
|
public ApplicationOperation(IApplicationMonitor applicationMonitor, ClientContext context, ILogger logger) : base(context)
|
|
{
|
|
this.applicationMonitor = applicationMonitor;
|
|
this.logger = logger;
|
|
}
|
|
|
|
public override OperationResult Perform()
|
|
{
|
|
logger.Info("Initializing applications...");
|
|
StatusChanged?.Invoke(TextKey.OperationStatus_InitializeProcessMonitoring);
|
|
|
|
var result = InitializeApplications();
|
|
|
|
if (result == OperationResult.Success)
|
|
{
|
|
StartMonitor();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public override OperationResult Revert()
|
|
{
|
|
logger.Info("Finalizing applications...");
|
|
StatusChanged?.Invoke(TextKey.OperationStatus_StopProcessMonitoring);
|
|
|
|
TerminateApplications();
|
|
StopMonitor();
|
|
|
|
return OperationResult.Success;
|
|
}
|
|
|
|
private OperationResult InitializeApplications()
|
|
{
|
|
var initialization = applicationMonitor.Initialize(Context.Settings.Applications);
|
|
var result = OperationResult.Success;
|
|
|
|
if (initialization.RunningApplications.Any())
|
|
{
|
|
result = TryTerminate(initialization.RunningApplications);
|
|
}
|
|
|
|
if (result == OperationResult.Success)
|
|
{
|
|
foreach (var application in Context.Settings.Applications.Whitelist)
|
|
{
|
|
Create(application);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
private void Create(WhitelistApplication application)
|
|
{
|
|
// TODO: Use IApplicationFactory to create new application according to configuration, load into Context.Applications
|
|
}
|
|
|
|
private void StartMonitor()
|
|
{
|
|
if (Context.Settings.KioskMode != KioskMode.None)
|
|
{
|
|
applicationMonitor.Start();
|
|
}
|
|
}
|
|
|
|
private void StopMonitor()
|
|
{
|
|
if (Context.Settings.KioskMode != KioskMode.None)
|
|
{
|
|
applicationMonitor.Stop();
|
|
}
|
|
}
|
|
|
|
private void TerminateApplications()
|
|
{
|
|
|
|
}
|
|
|
|
private OperationResult TryTerminate(IEnumerable<RunningApplicationInfo> runningApplications)
|
|
{
|
|
var args = new ProcessTerminationEventArgs();
|
|
var result = OperationResult.Success;
|
|
|
|
ActionRequired?.Invoke(args);
|
|
|
|
if (args.TerminateProcesses)
|
|
{
|
|
// TODO: Terminate all processes of all running applications
|
|
|
|
//foreach (var application in runningApplications)
|
|
//{
|
|
// foreach (var process in application.Processes)
|
|
// {
|
|
// process.Kill();
|
|
// }
|
|
//}
|
|
}
|
|
else
|
|
{
|
|
result = OperationResult.Aborted;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
}
|
|
}
|