C#에서 Network folder, drive 접근

using System.Runtime.InteropServices;
using System.Security.Principal;

public const int LOGON32_LOGON_INTERACTIVE = 2;
public const int LOGON32_PROVIDER_DEFAULT = 0;

WindowsImpersonationContext m_ImpersonationContext;

[DllImport("advapi32.dll")]
public static extern int LogonUserA(String lpszUserName,
 String lpszDomain,
 String lpszPassword,
 int dwLogonType,
 int dwLogonProvider,
 ref IntPtr phToken);

[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
 public static extern int DuplicateToken(IntPtr hToken,
 int impersonationLevel,
 ref IntPtr hNewToken);

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

[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
public static extern bool CloseHandle(IntPtr handle);

private bool ImpersonateValidUser(String userName, String domain, String password)
{
 WindowsIdentity tempWindowsIdentity;
 IntPtr token = IntPtr.Zero;
 IntPtr tokenDuplicate = IntPtr.Zero;

 if (RevertToSelf())
 {
  if (LogonUserA(userName, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0)
  {
   if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
   {
    tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
    m_ImpersonationContext = tempWindowsIdentity.Impersonate();

    if (m_ImpersonationContext != null)
    {
     CloseHandle(token);
     CloseHandle(tokenDuplicate);
     return true;
    }
   }
  }
 }
 
 if (token != IntPtr.Zero)
  CloseHandle(token);
 
 if (tokenDuplicate != IntPtr.Zero)
  CloseHandle(tokenDuplicate);
  
 return false;
}

private void UndoImpersonation()
{
 m_ImpersonationContext.Undo();
}

 

 

// Use
if (ImpersonateValidUser([USERID], [DOMAIN], [PASSWORD]))

{

.....

UndoImpersonation();

}