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  #   ˆl–Ðz¾”Ji?u4 ^¸ËwÒ˜´oÇ„o:¿Ä =ÿ    using Microsoft.Win32.SafeHandles;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.Principal;
using System.Text;

namespace Ansible.AccessToken
{
    internal class NativeHelpers
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct LUID_AND_ATTRIBUTES
        {
            public Luid Luid;
            public UInt32 Attributes;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct SID_AND_ATTRIBUTES
        {
            public IntPtr Sid;
            public int Attributes;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct TOKEN_PRIVILEGES
        {
            public UInt32 PrivilegeCount;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)]
            public LUID_AND_ATTRIBUTES[] Privileges;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct TOKEN_USER
        {
            public SID_AND_ATTRIBUTES User;
        }

        public enum TokenInformationClass : uint
        {
            TokenUser = 1,
            TokenPrivileges = 3,
            TokenStatistics = 10,
            TokenElevationType = 18,
            TokenLinkedToken = 19,
        }
    }

    internal class NativeMethods
    {
        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool CloseHandle(
            IntPtr hObject);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool DuplicateTokenEx(
            SafeNativeHandle hExistingToken,
            TokenAccessLevels dwDesiredAccess,
            IntPtr lpTokenAttributes,
            SecurityImpersonationLevel ImpersonationLevel,
            TokenType TokenType,
            out SafeNativeHandle phNewToken);

        [DllImport("kernel32.dll")]
        public static extern SafeNativeHandle GetCurrentProcess();

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool GetTokenInformation(
            SafeNativeHandle TokenHandle,
            NativeHelpers.TokenInformationClass TokenInformationClass,
            SafeMemoryBuffer TokenInformation,
            UInt32 TokenInformationLength,
            out UInt32 ReturnLength);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool ImpersonateLoggedOnUser(
            SafeNativeHandle hToken);

        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        public static extern bool LogonUserW(
            string lpszUsername,
            string lpszDomain,
            string lpszPassword,
            LogonType dwLogonType,
            LogonProvider dwLogonProvider,
            out SafeNativeHandle phToken);

        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        public static extern bool LookupPrivilegeNameW(
            string lpSystemName,
            ref Luid lpLuid,
            StringBuilder lpName,
            ref UInt32 cchName);

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern SafeNativeHandle OpenProcess(
            ProcessAccessFlags dwDesiredAccess,
            bool bInheritHandle,
            UInt32 dwProcessId);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool OpenProcessToken(
            SafeNativeHandle ProcessHandle,
            TokenAccessLevels DesiredAccess,
            out SafeNativeHandle TokenHandle);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool RevertToSelf();
    }

    internal class SafeMemoryBuffer : SafeHandleZeroOrMinusOneIsInvalid
    {
        public SafeMemoryBuffer() : base(true) { }
        public SafeMemoryBuffer(int cb) : base(true)
        {
            base.SetHandle(Marshal.AllocHGlobal(cb));
        }
        public SafeMemoryBuffer(IntPtr handle) : base(true)
        {
            base.SetHandle(handle);
        }

        protected over