Files
Nitrox/NitroxModel/Platforms/OS/Windows/WinFileSystem.cs
2025-07-06 00:23:46 +02:00

100 lines
3.4 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Security.AccessControl;
using System.Security.Principal;
using Microsoft.Win32;
using NitroxModel.Platforms.OS.Shared;
using NitroxModel.Platforms.OS.Windows.Internal;
namespace NitroxModel.Platforms.OS.Windows;
#if NET5_0_OR_GREATER
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
#endif
internal class WinFileSystem : FileSystem
{
public override IEnumerable<string> ExecutableFileExtensions { get; } = ["exe", "cmd", "bat"];
public override string TextEditor => GetFullPath("notepad.exe");
public override IEnumerable<string> GetDefaultPrograms(string file)
{
string SearchExecutableInSameDirectory(string path)
{
if (Path.GetExtension(path) != "")
{
return path;
}
foreach (string ext in ExecutableFileExtensions)
{
string newPath = Path.ChangeExtension(path, ext);
if (File.Exists(newPath))
{
return newPath;
}
}
return path;
}
string extension = Path.GetExtension(file);
if (string.IsNullOrWhiteSpace(extension))
{
yield break;
}
string defaultProgramOnDblClick = Win32Native.AssocQueryString(Win32Native.AssocStr.Executable, extension);
if (!string.IsNullOrWhiteSpace(defaultProgramOnDblClick) && File.Exists(defaultProgramOnDblClick))
{
yield return Path.GetFullPath(defaultProgramOnDblClick);
}
string baseKey = $@"Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\{extension}";
using RegistryKey rk = Registry.CurrentUser.OpenSubKey($@"{baseKey}\OpenWithList");
if (rk?.GetValue("MRUList") is not string mruList)
{
yield break;
}
foreach (char c in mruList)
{
string fullPath = SearchExecutableInSameDirectory(GetFullPath(rk.GetValue(c.ToString()).ToString()));
if (fullPath == null)
{
continue;
}
yield return fullPath;
}
}
/// <summary>
/// Adds full access flag to the directory (and sub files/directories) for the current user.
/// </summary>
/// <param name="directory"></param>
/// <returns>True if set, false if program is not allowed to change permissions.</returns>
public override bool SetFullAccessToCurrentUser(string directory)
{
try
{
string identity = WindowsIdentity.GetCurrent().Name;
DirectoryInfo dir = new(directory);
DirectorySecurity flags = dir.GetAccessControl();
flags.AddAccessRule(new(identity, FileSystemRights.FullControl, InheritanceFlags.None, PropagationFlags.InheritOnly, AccessControlType.Allow));
flags.AddAccessRule(new (identity, FileSystemRights.FullControl, InheritanceFlags.ContainerInherit, PropagationFlags.InheritOnly, AccessControlType.Allow));
flags.AddAccessRule(new (identity, FileSystemRights.FullControl, InheritanceFlags.ObjectInherit, PropagationFlags.InheritOnly, AccessControlType.Allow));
dir.SetAccessControl(flags);
return true;
}
catch (UnauthorizedAccessException)
{
return false;
}
}
public override bool IsTrustedFile(string file) => Win32Native.IsTrusted(file);
}