I have a website on which I create a file and save it in a remote shared folder. I have an account that has write access to this shared folder. Therefore, I impersonate this account by saving the file in this path. This logic works when I run the application from my visual studio locally on my machine. When I deploy the code to the development server, it does not work. I get the following error.
"Login error: the user was not provided with the requested login type on this computer"
can someone help.
Here is the impersonation code from codeproject
using System;
using System.Security.Principal;
using System.Runtime.InteropServices;
using System.ComponentModel;
public class Impersonator :
IDisposable
{
public Impersonator(
string userName,
string domainName,
string password)
{
ImpersonateValidUser(userName, domainName, password);
}
#endregion
#region IDisposable member.
public void Dispose()
{
UndoImpersonation();
}
#endregion
#region P/Invoke.
[DllImport("advapi32.dll", SetLastError = true)]
private static extern int LogonUser(
string lpszUserName,
string lpszDomain,
string lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int DuplicateToken(
IntPtr hToken,
int impersonationLevel,
ref IntPtr hNewToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern bool RevertToSelf();
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
private static extern bool CloseHandle(
IntPtr handle);
private const int LOGON32_LOGON_INTERACTIVE = 2;
private const int LOGON32_PROVIDER_DEFAULT = 0;
#endregion
#region Private member.
private void ImpersonateValidUser(
string userName,
string domain,
string password)
{
WindowsIdentity tempWindowsIdentity = null;
IntPtr token = IntPtr.Zero;
IntPtr tokenDuplicate = IntPtr.Zero;
try
{
if (RevertToSelf())
{
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();
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
finally
{
if (token != IntPtr.Zero)
{
CloseHandle(token);
}
if (tokenDuplicate != IntPtr.Zero)
{
CloseHandle(tokenDuplicate);
}
}
}
private void UndoImpersonation()
{
if (impersonationContext != null)
{
impersonationContext.Undo();
}
}
private WindowsImpersonationContext impersonationContext = null;
#endregion
}
source
share