/// <summary>
/// Try to launch the program as admin, return result
/// </summary>
private PermissionCheckResult LaunchCurrentAppAsAdmin(string exeName, Guid guid)
{
ProcessStartInfo info = new ProcessStartInfo
{
FileName = PermissionChecker.GetExe(),
UseShellExecute = true,
CreateNoWindow = true
};
//Required by UAC ;(
info.UseShellExecute = true;
// Provides Run as Administrator
info.Verb = "runas";
// Custom argument so we know we manually elevated the process
info.Arguments = $"/elevated /appname:\"{exeName}\" /guid:\"{guid:N}\"";
try
{
Process process = new Process {
StartInfo = info
};
process.Start();
int processId = process.Id;
Debug.WriteLine("UAC Promt Accepted, waiting for exit ...");
//process.HasExited and process.WaitForExit are not allowed while the process is elevated :(
WaitForExit(processId);
if (!process.HasExited)
{
process.WaitForExit();
}
return((PermissionCheckResult)process.ExitCode);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
return(PermissionCheckResult.ElevationFailed);
}
}
public App()
{
#if DEBUGELEVATED
if (IsElevated())
{
if (Debugger.IsAttached)
{
Debugger.Break();
}
else
{
Debugger.Launch();
}
}
#endif
string exeName = GetParameter("appname");
string guidString = GetParameter("guid");
if (string.IsNullOrWhiteSpace(exeName))
{
exeName = Path.GetFileName(PermissionChecker.GetExe());
}
Guid guid;
if (!string.IsNullOrWhiteSpace(guidString))
{
guid = Guid.Parse(guidString);
}
else
{
guid = Guid.NewGuid();
}
Console.WriteLine(@"Is Admin: " + UserIsAdmin());
var result = PermissionChecker.EnsureAppPermissionsSet(exeName, guid);
if (result == PermissionCheckResult.ElevationRequired)
{
if (IsElevated() || UserIsAdmin())
{
result = PermissionCheckResult.ElevationInsufficient;
}
else
{
result = LaunchCurrentAppAsAdmin(exeName, guid);
}
}
#if DEBUG
if (!IsElevated())
{
Console.WriteLine(result);
Console.ReadKey();
}
#endif
Environment.Exit((int)result);
}