osu/osu.Desktop/Security/ElevatedPrivilegesChecker.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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using System;
using System.Security.Principal;
using osu.Framework;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
using osu.Game.Graphics;
using osu.Game.Overlays;
using osu.Game.Overlays.Notifications;
namespace osu.Desktop.Security
{
/// <summary>
/// Checks if the game is running with elevated privileges (as admin in Windows, root in Unix) and displays a warning notification if so.
/// </summary>
public class ElevatedPrivilegesChecker : Component
{
[Resolved]
private NotificationOverlay notifications { get; set; }
private bool elevated;
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[BackgroundDependencyLoader]
private void load()
{
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elevated = checkElevated();
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}
protected override void LoadComplete()
{
base.LoadComplete();
if (elevated)
notifications.Post(new ElevatedPrivilegesNotification());
}
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private bool checkElevated()
{
try
{
switch (RuntimeInfo.OS)
{
case RuntimeInfo.Platform.Windows:
if (!OperatingSystem.IsWindows()) return false;
var windowsIdentity = WindowsIdentity.GetCurrent();
var windowsPrincipal = new WindowsPrincipal(windowsIdentity);
return windowsPrincipal.IsInRole(WindowsBuiltInRole.Administrator);
case RuntimeInfo.Platform.macOS:
case RuntimeInfo.Platform.Linux:
return Mono.Unix.Native.Syscall.geteuid() == 0;
}
}
catch
{
}
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return false;
}
private class ElevatedPrivilegesNotification : SimpleNotification
{
public override bool IsImportant => true;
public ElevatedPrivilegesNotification()
{
Text = $"Running osu! as {(RuntimeInfo.IsUnix ? "root" : "administrator")} does not improve performance and poses a security risk. Please run the game as a normal user.";
}
[BackgroundDependencyLoader]
private void load(OsuColour colours, NotificationOverlay notificationOverlay)
{
Icon = FontAwesome.Solid.ShieldAlt;
IconBackgound.Colour = colours.YellowDark;
}
}
}
}