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Imports System
Imports System.Runtime.InteropServices
Imports System.Security.Principal
Imports System.Security.Permissions
Public Class Form1
<DllImport("advapi32.DLL", SetLastError:=True)> _
Public Shared Function LogonUser(ByVal lpszUsername As String, ByVal lpszDomain As String, _
ByVal lpszPassword As String, ByVal dwLogonType As Integer, ByVal dwLogonProvider As Integer, _
ByRef phToken As IntPtr) As Integer
End Function
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim admin_token As IntPtr
Dim wid_current As WindowsIdentity = WindowsIdentity.GetCurrent()
Dim wid_admin As WindowsIdentity = Nothing
Dim wic As WindowsImpersonationContext = Nothing
Try
MessageBox.Show("Copying file...")
If LogonUser("user", "Domaine", "pass", 9, 0, admin_token) <> 0 Then
wid_admin = New WindowsIdentity(admin_token)
wic = wid_admin.Impersonate()
System.IO.File.Copy("C:\test.txt", "\\file1srv\test.txt", True)
MessageBox.Show("Copy succeeded")
Else
MessageBox.Show("Copy Failed")
End If
Catch se As System.Exception
Dim ret As Integer = Marshal.GetLastWin32Error()
MessageBox.Show(ret.ToString(), "Error code: " + ret.ToString())
MessageBox.Show(se.Message)
Finally
If wic IsNot Nothing Then
wic.Undo()
End If
End Try
End Sub
End Class |
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