This is a viewer only at the moment see the article on how this works.
To update the preview hit Ctrl-Alt-R (or ⌘-Alt-R on Mac) or Enter to refresh. The Save icon lets you save the markdown file to disk
This is a preview from the server running through my markdig pipeline
Friday, 12 March 2004
Tja, hade en härlig paus ... nu för någon kod, detta kommer att låta dig "imitera" en användare - verkligen praktiskt när, till exempel, försöker ladda upp en fil till en nätverksplats ... som vanligt, ingen aning om var jag hittade detta, om det var du, låt mig veta!
using System;
using System.Web;
using System.Web.Security;
using System.Security.Principal;
using System.Runtime.InteropServices;
namespace Components.Security
{
///
/// Summary description for ImpersonateUser.
///
public class ImpersonateUser
{
public const int LOGON32_LOGON_INTERACTIVE = 2;
public const int LOGON32_PROVIDER_DEFAULT = 0;
WindowsImpersonationContext impersonationContext;
[DllImport("advapi32.dll", CharSet = CharSet.Auto)]
public static extern int LogonUser( string lpszUserUname,
string lpszDomain,
string lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
[DllImport("advapi32.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError=true)]
public extern static int DuplicateToken(IntPtr hToken,
int impersonationLevel,
ref IntPtr hNewToken);
public bool impersonateValidUser(string userName, string domain, string password)
{
WindowsIdentity tempWindowsIdentity;
IntPtr token = IntPtr.Zero;
IntPtr tokenDuplicate = IntPtr.Zero;
if(LogonUser(userName, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0)
{
if(DuplicateToken(token, 2, ref tokenDuplicate) != 0)
{
tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
impersonationContext = tempWindowsIdentity.Impersonate();
return (impersonationContext != null);
}
else
{
return false;
}
}
else
{
return false;
}
}
public void undoImpersonation()
{
impersonationContext.Undo();
}
}
}
© 2026 Scott Galloway — Unlicense — All content and source code on this site is free to use, copy, modify, and sell.