/// <summary>
/// Begins impersonation with the given credentials.
/// </summary>
/// <param name="userName">Name of the user.</param>
/// <param name="domainName">Name of the domain.</param>
/// <param name="password">The password. <see cref="System.String"/></param>
public Impersonator(Credential credential)
{
Impersonate(credential, LogonType.LOGON32_LOGON_INTERACTIVE, LogonProvider.LOGON32_PROVIDER_DEFAULT);
}
/// <summary>
/// Impersonates the specified user account.
/// </summary>
/// <param name="userName">Name of the user.</param>
/// <param name="domainName">Name of the domain.</param>
/// <param name="password">The password. <see cref="System.String"/></param>
/// <param name="logonType">Type of the logon.</param>
/// <param name="logonProvider">The logon provider. <see cref="Mit.Sharepoint.WebParts.EventLogQuery.Network.LogonProvider"/></param>
public void Impersonate(Credential credential, LogonType logonType, LogonProvider logonProvider)
{
UndoImpersonation();
IntPtr logonToken = IntPtr.Zero;
IntPtr logonTokenDuplicate = IntPtr.Zero;
try
{
// revert to the application pool identity, saving the identity of the current requestor
_wic = WindowsIdentity.Impersonate(IntPtr.Zero);
// do logon & impersonate
if (Win32NativeMethods.LogonUser(credential.UserName,
credential.Domain,
credential.Password,
(int)logonType,
(int)logonProvider,
ref logonToken) != 0)
{
if (Win32NativeMethods.DuplicateToken(logonToken, (int)ImpersonationLevel.SecurityImpersonation, ref logonTokenDuplicate) != 0)
{
var wi = new WindowsIdentity(logonTokenDuplicate);
wi.Impersonate(); // discard the returned identity context (which is the context of the application pool)
}
else
throw new Win32Exception(Marshal.GetLastWin32Error());
}
else
throw new Win32Exception(Marshal.GetLastWin32Error());
}
finally
{
if (logonToken != IntPtr.Zero)
Win32NativeMethods.CloseHandle(logonToken);
if (logonTokenDuplicate != IntPtr.Zero)
Win32NativeMethods.CloseHandle(logonTokenDuplicate);
}
}
/// <summary>
/// Begins impersonation with the given credentials, Logon type and Logon provider.
/// </summary>
/// <param name="userName">Name of the user.</param>
/// <param name="domainName">Name of the domain.</param>
/// <param name="password">The password. <see cref="System.String"/></param>
/// <param name="logonType">Type of the logon.</param>
/// <param name="logonProvider">The logon provider. <see cref="Mit.Sharepoint.WebParts.EventLogQuery.Network.LogonProvider"/></param>
public Impersonator(Credential credential, LogonType logonType, LogonProvider logonProvider)
{
Impersonate(credential, logonType, logonProvider);
}
/// <summary>
/// Send a shutdown command to a (remote) computer.
/// </summary>
/// <param name="machineName"> The machinename or ip-address of computer to send shutdown command to. </param>
/// <param name="shutdownCommand"> Shutdown type command. </param>
/// <param name="credentials"> Optional network credentials for the (remote) computer. </param>
/// <returns> 0 if the shutdown was succesfully send, else another integer value. </returns>
/// <exception cref="ManagementException">An unhandled managed error occured.</exception>
/// <exception cref="UnauthorizedAccessException">Access was denied.</exception>
public static Int32 ForceShutdown(String machineName, ShutdownCommands shutdownCommand, Credential credential = null)
{
Int32 result = -1;
ConnectionOptions options = new ConnectionOptions();
if (credential != null)
{
options.EnablePrivileges = true;
options.Username = credential.UserNameWithDomain;
options.Password = credential.Password;
}
ManagementScope scope = new ManagementScope(String.Format("\\\\{0}\\root\\cimv2", machineName), options);
scope.Connect();
SelectQuery query = new SelectQuery("Win32_OperatingSystem");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
foreach (ManagementObject os in searcher.Get())
{
ManagementBaseObject inParams = os.GetMethodParameters("Win32Shutdown");
inParams["Flags"] = (Int32) shutdownCommand;
ManagementBaseObject outParams = os.InvokeMethod("Win32Shutdown", inParams, null);
result = Convert.ToInt32(outParams.Properties["returnValue"].Value);
return result;
}
return result;
}
