using Immense.RemoteControl.Desktop.Shared.Native.Win32;
using Microsoft.Win32.SafeHandles;
using System;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;

public static class SECUR32
{
    public enum WinStatusCodes : uint
    {
        STATUS_SUCCESS = 0
    }

    public enum WinErrors : uint
    {
        NO_ERROR = 0,
    }
    public enum WinLogonType
    {
        LOGON32_LOGON_INTERACTIVE = 2,
        LOGON32_LOGON_NETWORK = 3,
        LOGON32_LOGON_BATCH = 4,
        LOGON32_LOGON_SERVICE = 5,
        LOGON32_LOGON_UNLOCK = 7,
        LOGON32_LOGON_NETWORK_CLEARTEXT = 8,
        LOGON32_LOGON_NEW_CREDENTIALS = 9
    }

    // SECURITY_LOGON_TYPE
    public enum SecurityLogonType
    {
        Interactive = 2,    // Interactively logged on (locally or remotely)
        Network,        // Accessing system via network
        Batch,          // Started via a batch queue
        Service,        // Service started by service controller
        Proxy,          // Proxy logon
        Unlock,         // Unlock workstation
        NetworkCleartext,   // Network logon with cleartext credentials
        NewCredentials,     // Clone caller, new default credentials
        RemoteInteractive,  // Remote, yet interactive. Terminal server
        CachedInteractive,  // Try cached credentials without hitting the net.
        CachedRemoteInteractive, // Same as RemoteInteractive, this is used internally for auditing purpose
        CachedUnlock    // Cached Unlock workstation
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct LSA_UNICODE_STRING
    {
        public UInt16 Length;
        public UInt16 MaximumLength;
        public IntPtr Buffer;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct TOKEN_SOURCE
    {
        public TOKEN_SOURCE(string name)
        {
            SourceName = new byte[8];
            System.Text.Encoding.GetEncoding(1252).GetBytes(name, 0, name.Length, SourceName, 0);
            if (!ADVAPI32.AllocateLocallyUniqueId(out SourceIdentifier))
                throw new System.ComponentModel.Win32Exception();
        }

        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)] public byte[] SourceName;
        public IntPtr SourceIdentifier;
    }
    [StructLayout(LayoutKind.Sequential)]
    public struct KERB_INTERACTIVE_LOGON
    {
        public KERB_LOGON_SUBMIT_TYPE MessageType;
        public string LogonDomainName;
        public string UserName;
        public string Password;
    }
    public enum KERB_LOGON_SUBMIT_TYPE
    {
        KerbInteractiveLogon = 2,
        KerbSmartCardLogon = 6,
        KerbWorkstationUnlockLogon = 7,
        KerbSmartCardUnlockLogon = 8,
        KerbProxyLogon = 9,
        KerbTicketLogon = 10,
        KerbTicketUnlockLogon = 11,
        KerbS4ULogon = 12,
        KerbCertificateLogon = 13,
        KerbCertificateS4ULogon = 14,
        KerbCertificateUnlockLogon = 15
    }
    public enum TOKEN_INFORMATION_CLASS
    {
        /// <summary>
            /// The buffer receives a TOKEN_USER structure that contains the user account of the token.
            /// </summary>
        TokenUser = 1,

        /// <summary>
            /// The buffer receives a TOKEN_GROUPS structure that contains the group accounts associated with the token.
            /// </summary>
        TokenGroups,

        /// <summary>
            /// The buffer receives a TOKEN_PRIVILEGES structure that contains the privileges of the token.
            /// </summary>
        TokenPrivileges,

        /// <summary>
            /// The buffer receives a TOKEN_OWNER structure that contains the default owner security identifier (SID) for newly created objects.
            /// </summary>
        TokenOwner,

        /// <summary>
            /// The buffer receives a TOKEN_PRIMARY_GROUP structure that contains the default primary group SID for newly created objects.
            /// </summary>
        TokenPrimaryGroup,

        /// <summary>
            /// The buffer receives a TOKEN_DEFAULT_DACL structure that contains the default DACL for newly created objects.
            /// </summary>
        TokenDefaultDacl,

        /// <summary>
            /// The buffer receives a TOKEN_SOURCE structure that contains the source of the token. TOKEN_QUERY_SOURCE access is needed to retrieve this information.
            /// </summary>
        TokenSource,

        /// <summary>
            /// The buffer receives a TOKEN_TYPE value that indicates whether the token is a primary or impersonation token.
            /// </summary>
        TokenType,

        /// <summary>
            /// The buffer receives a SECURITY_IMPERSONATION_LEVEL value that indicates the impersonation level of the token. If the access token is not an impersonation token, the function fails.
            /// </summary>
        TokenImpersonationLevel,

        /// <summary>
            /// The buffer receives a TOKEN_STATISTICS structure that contains various token statistics.
            /// </summary>
        TokenStatistics,

        /// <summary>
            /// The buffer receives a TOKEN_GROUPS structure that contains the list of restricting SIDs in a restricted token.
            /// </summary>
        TokenRestrictedSids,

        /// <summary>
            /// The buffer receives a DWORD value that indicates the Terminal Services session identifier that is associated with the token. 
            /// </summary>
        TokenSessionId,

        /// <summary>
            /// The buffer receives a TOKEN_GROUPS_AND_PRIVILEGES structure that contains the user SID, the group accounts, the restricted SIDs, and the authentication ID associated with the token.
            /// </summary>
        TokenGroupsAndPrivileges,

        /// <summary>
            /// Reserved.
            /// </summary>
        TokenSessionReference,

        /// <summary>
            /// The buffer receives a DWORD value that is nonzero if the token includes the SANDBOX_INERT flag.
            /// </summary>
        TokenSandBoxInert,

        /// <summary>
            /// Reserved.
            /// </summary>
        TokenAuditPolicy,

        /// <summary>
            /// The buffer receives a TOKEN_ORIGIN value. 
            /// </summary>
        TokenOrigin,

        /// <summary>
            /// The buffer receives a TOKEN_ELEVATION_TYPE value that specifies the elevation level of the token.
            /// </summary>
        TokenElevationType,

        /// <summary>
            /// The buffer receives a TOKEN_LINKED_TOKEN structure that contains a handle to another token that is linked to this token.
            /// </summary>
        TokenLinkedToken,

        /// <summary>
            /// The buffer receives a TOKEN_ELEVATION structure that specifies whether the token is elevated.
            /// </summary>
        TokenElevation,

        /// <summary>
            /// The buffer receives a DWORD value that is nonzero if the token has ever been filtered.
            /// </summary>
        TokenHasRestrictions,

        /// <summary>
            /// The buffer receives a TOKEN_ACCESS_INFORMATION structure that specifies security information contained in the token.
            /// </summary>
        TokenAccessInformation,

        /// <summary>
            /// The buffer receives a DWORD value that is nonzero if virtualization is allowed for the token.
            /// </summary>
        TokenVirtualizationAllowed,

        /// <summary>
            /// The buffer receives a DWORD value that is nonzero if virtualization is enabled for the token.
            /// </summary>
        TokenVirtualizationEnabled,

        /// <summary>
            /// The buffer receives a TOKEN_MANDATORY_LABEL structure that specifies the token's integrity level. 
            /// </summary>
        TokenIntegrityLevel,

        /// <summary>
            /// The buffer receives a DWORD value that is nonzero if the token has the UIAccess flag set.
            /// </summary>
        TokenUIAccess,

        /// <summary>
            /// The buffer receives a TOKEN_MANDATORY_POLICY structure that specifies the token's mandatory integrity policy.
            /// </summary>
        TokenMandatoryPolicy,

        /// <summary>
            /// The buffer receives the token's logon security identifier (SID).
            /// </summary>
        TokenLogonSid,

        /// <summary>
            /// The maximum value for this enumeration
            /// </summary>
        MaxTokenInfoClass
    }
    [StructLayout(LayoutKind.Sequential)]
    public struct QUOTA_LIMITS
    {
        readonly UInt32 PagedPoolLimit;
        readonly UInt32 NonPagedPoolLimit;
        readonly UInt32 MinimumWorkingSetSize;
        readonly UInt32 MaximumWorkingSetSize;
        readonly UInt32 PagefileLimit;
        readonly Int64 TimeLimit;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct LSA_STRING
    {
        public UInt16 Length;
        public UInt16 MaximumLength;
        public /*PCHAR*/ IntPtr Buffer;
    }


    [DllImport("secur32.dll", SetLastError = true)]
    public static extern WinStatusCodes LsaLogonUser(
        [In] IntPtr LsaHandle,
        [In] ref LSA_STRING OriginName,
        [In] SecurityLogonType LogonType,
        [In] UInt32 AuthenticationPackage,
        [In] IntPtr AuthenticationInformation,
        [In] UInt32 AuthenticationInformationLength,
        [In] /*PTOKEN_GROUPS*/ IntPtr LocalGroups,
        [In] ref TOKEN_SOURCE SourceContext,
        [Out] /*PVOID*/ out IntPtr ProfileBuffer,
        [Out] out UInt32 ProfileBufferLength,
        [Out] out Int64 LogonId,
        [Out] out IntPtr Token,
        [Out] out QUOTA_LIMITS Quotas,
        [Out] out WinStatusCodes SubStatus
        );

    [DllImport("secur32.dll", SetLastError = true)]
    public static extern WinStatusCodes LsaRegisterLogonProcess(
        IntPtr LogonProcessName,
        out IntPtr LsaHandle,
        out ulong SecurityMode
        );

    [DllImport("secur32.dll", SetLastError = false)]
    public static extern WinStatusCodes LsaLookupAuthenticationPackage([In] IntPtr LsaHandle, [In] ref LSA_STRING PackageName, [Out] out UInt32 AuthenticationPackage);

    [DllImport("secur32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    [ResourceExposure(ResourceScope.None)]
    internal static extern int LsaConnectUntrusted(
            [In, Out] ref SafeLsaLogonProcessHandle LsaHandle);

    [DllImport("secur32.dll", SetLastError = false)]
    public static extern WinStatusCodes LsaConnectUntrusted([Out] out IntPtr LsaHandle);

    [System.Security.SecurityCritical]  // auto-generated
    internal sealed class SafeLsaLogonProcessHandle : SafeHandleZeroOrMinusOneIsInvalid
    {
        private SafeLsaLogonProcessHandle() : base(true) { }

        // 0 is an Invalid Handle
        internal SafeLsaLogonProcessHandle(IntPtr handle) : base(true)
        {
            SetHandle(handle);
        }

        internal static SafeLsaLogonProcessHandle InvalidHandle
        {
            get { return new SafeLsaLogonProcessHandle(IntPtr.Zero); }
        }

        [System.Security.SecurityCritical]
        protected override bool ReleaseHandle()
        {
            // LsaDeregisterLogonProcess returns an NTSTATUS
            return LsaDeregisterLogonProcess(handle) >= 0;
        }
    }

    [DllImport("secur32.dll", SetLastError = true)]
    [ResourceExposure(ResourceScope.None)]
    internal static extern int LsaDeregisterLogonProcess(IntPtr handle);


    public static void CreateNewSession()
    {
        var kli = new SECUR32.KERB_INTERACTIVE_LOGON()
        {
            MessageType = SECUR32.KERB_LOGON_SUBMIT_TYPE.KerbInteractiveLogon,
            UserName = "",
            Password = ""
        };
        IntPtr kerbLogInfo;
        SECUR32.LSA_STRING logonProc = new()
        {
            Buffer = Marshal.StringToHGlobalAuto("InstaLogon"),
            Length = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("InstaLogon")),
            MaximumLength = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("InstaLogon"))
        };
        SECUR32.LSA_STRING originName = new()
        {
            Buffer = Marshal.StringToHGlobalAuto("InstaLogon"),
            Length = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("InstaLogon")),
            MaximumLength = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("InstaLogon"))
        };
        SECUR32.LSA_STRING authPackage = new()
        {
            Buffer = Marshal.StringToHGlobalAuto("MICROSOFT_KERBEROS_NAME_A"),
            Length = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("MICROSOFT_KERBEROS_NAME_A")),
            MaximumLength = (ushort)Marshal.SizeOf(Marshal.StringToHGlobalAuto("MICROSOFT_KERBEROS_NAME_A"))
        };
        IntPtr hLogonProc = Marshal.AllocHGlobal(Marshal.SizeOf(logonProc));
        Marshal.StructureToPtr(logonProc, hLogonProc, false);
        ADVAPI32.AllocateLocallyUniqueId(out IntPtr pluid);
        LsaConnectUntrusted(out IntPtr lsaHan);
        //SECUR32.LsaRegisterLogonProcess(hLogonProc, out lsaHan, out secMode);
        SECUR32.LsaLookupAuthenticationPackage(lsaHan, ref authPackage, out uint authPackID);

        kerbLogInfo = Marshal.AllocHGlobal(Marshal.SizeOf(kli));
        Marshal.StructureToPtr(kli, kerbLogInfo, false);

        var ts = new SECUR32.TOKEN_SOURCE("Insta");
        SECUR32.LsaLogonUser(
            lsaHan, 
            ref originName,
            SECUR32.SecurityLogonType.Interactive,
            authPackID, 
            kerbLogInfo,
            (uint)Marshal.SizeOf(kerbLogInfo),
            IntPtr.Zero,
            ref ts,
            out IntPtr profBuf,
            out uint profBufLen,
            out long logonID, 
            out IntPtr logonToken, 
            out QUOTA_LIMITS quotas,
            out WinStatusCodes subStatus);
    }
}