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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core;
using Tango.Core.Components;
using Tango.PPC.Common.Connection;
namespace Tango.PPC.Common.RemoteAssistance
{
/// <summary>
/// Represents the default remote assistance provider.
/// </summary>
/// <seealso cref="Tango.Core.ExtendedObject" />
/// <seealso cref="Tango.PPC.Common.RemoteAssistance.IRemoteAssistanceProvider" />
public class DefaultRemoteAssistanceProvider : ExtendedObject, IRemoteAssistanceProvider
{
private IMachineProvider _machineProvider;
private String _installer_path = "C:\\Installers\\TeamViewer_Host.msi";
private bool _isEnabled;
/// <summary>
/// Gets a value indicating whether the remote assistance service is enabled.
/// </summary>
public bool IsEnabled
{
get { return _isEnabled; }
private set { _isEnabled = value; RaisePropertyChangedAuto(); }
}
/// <summary>
/// Initializes a new instance of the <see cref="DefaultRemoteAssistanceProvider"/> class.
/// </summary>
/// <param name="machineProvider">The machine provider.</param>
public DefaultRemoteAssistanceProvider(IMachineProvider machineProvider)
{
_machineProvider = machineProvider;
}
/// <summary>
/// Enables the remote assistance.
/// </summary>
/// <returns></returns>
public async Task EnableRemoteAssistance()
{
if (!IsEnabled)
{
try
{
CmdCommand command = new CmdCommand("sc.exe", "config TeamViewer start=auto");
command.Timeout = TimeSpan.FromSeconds(10);
await command.Run();
command = new CmdCommand("net", "start TeamViewer");
command.Timeout = TimeSpan.FromSeconds(10);
await command.Run();
IsEnabled = true;
}
catch (Exception ex)
{
LogManager.Log(ex, "Error enabling remote assistance.");
}
}
}
/// <summary>
/// Disables the remote assistance.
/// </summary>
/// <returns></returns>
public async Task DisableRemoteAssistance()
{
if (IsEnabled)
{
try
{
CmdCommand command = new CmdCommand("sc.exe", "config TeamViewer start=disabled");
command.Timeout = TimeSpan.FromSeconds(10);
await command.Run();
command = new CmdCommand("net", "stop TeamViewer");
command.Timeout = TimeSpan.FromSeconds(10);
await command.Run();
IsEnabled = false;
}
catch (Exception ex)
{
LogManager.Log(ex, "Error disabling remote assistance.");
}
}
}
/// <summary>
/// Installs the remote assistance.
/// </summary>
/// <param name="machineSerialNumber">The machine serial number.</param>
/// <param name="group">The remote assistance group.</param>
/// <param name="environment">The machine working environment.</param>
/// <returns></returns>
/// <exception cref="FileNotFoundException"></exception>
/// <exception cref="ApplicationException">The remote assistance service was installed but could not be found.</exception>
public async Task InstallRemoteAssistance(String machineSerialNumber, String group, String environment)
{
try
{
if (!File.Exists(_installer_path))
{
throw new FileNotFoundException($"The remote assistance installer file could not be found at {_installer_path}.");
}
String q = "\"";
//CmdCommand command = new CmdCommand("msiexec.exe", $"/i \"{_installer_path}\" /qn CUSTOMCONFIGID=ke43ann APITOKEN=4765529-gon1LwO1N1TTrlLI21ji ASSIGNMENTOPTIONS=\" --reassign --alias {"TANGO-" + machineSerialNumber}-{environment} --grant-easy-access\"");
CmdCommand command = new CmdCommand("msiexec.exe", $"/i {q}{_installer_path}{q} /qn CUSTOMCONFIGID=ke43ann APITOKEN=4765529-gon1LwO1N1TTrlLI21ji ASSIGNMENTOPTIONS={q} --group {q}{q} {group} {q}{q} --reassign --alias TANGO-{machineSerialNumber}-{environment} --grant-easy-access{q}");
command.Timeout = TimeSpan.FromSeconds(30);
await command.Run();
bool exist = await IsRemoteAssistanceInstalled();
if (exist)
{
await DisableRemoteAssistance();
}
else
{
throw new ApplicationException("The remote assistance service was installed but could not be found.");
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error installing remote assistance.");
throw;
}
}
/// <summary>
/// Determines whether remote assistance is currently installed.
/// </summary>
/// <returns></returns>
private async Task<bool> IsRemoteAssistanceInstalled()
{
bool exist = false;
for (int i = 0; i < 6; i++)
{
LogManager.Log("Checking remote assistance service...");
await Task.Delay(1000);
CmdCommand command = new CmdCommand("sc.exe", "query TeamViewer");
try
{
await command.Run();
exist = true;
break;
}
catch { }
}
if (exist)
{
LogManager.Log("Remote assistance service found.");
}
else
{
LogManager.Log("Remote assistance service was not found.");
}
return exist;
}
}
}
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