public class UserLoginForDomainDAO
{
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 lpszUserName, 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);
/**/
/// <summary>
/// 输入用户名、密码、登录域判断是否成功
/// </summary>
/// <example>
/// if (impersonateValidUser(UserName, Domain, Password)){}
/// </example>
/// <param name="userName">账户名称，如：string UserName = UserNameTextBox.Text;</param>
/// <param name="domain">要登录的域，如：string Domain = DomainTextBox.Text;</param> ///
<param name="password">账户密码, 如：string Password = PasswordTextBox.Text;</param> ///
<returns>成功返回true,否则返回false</returns>
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();
if (impersonationContext != null) return true;
else return false;
}
else
return false;
}
else
return false;
}
public void undoImpersonation()
{
impersonationContext.Undo();
}
}
