Helpers/Initialize-ImpersonationContext.ps1
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function Initialize-ImpersonationContext { [CmdletBinding()] param () # Add Win32 native API methods to call to LogonUser() if (-not ([System.Management.Automation.PSTypeName]'Win32.AdvApi32').Type) { Add-Type -Namespace 'Win32' -Name 'AdvApi32' -MemberDefinition ' [DllImport("advapi32.dll", SetLastError = true)] public static extern bool LogonUser(string lpszUserName, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, out IntPtr phToken); ' } # Add Win32 native API methods to call to CloseHandle() if (-not ([System.Management.Automation.PSTypeName]'Win32.Kernel32').Type) { Add-Type -Namespace 'Win32' -Name 'Kernel32' -MemberDefinition ' [DllImport("kernel32.dll", SetLastError = true)] public static extern bool CloseHandle(IntPtr handle); ' } # Define enumeration for the logon type if (-not ([System.Management.Automation.PSTypeName]'Win33.Logon32Type').Type) { Add-Type -TypeDefinition ' namespace Win32 { public enum Logon32Type { Interactive = 2, Network = 3, Batch = 4, Service = 5, Unlock = 7, NetworkClearText = 8, NewCredentials = 9 } } ' } # Define enumeration for the logon provider if (-not ([System.Management.Automation.PSTypeName]'Win33.Logon32Type').Type) { Add-Type -TypeDefinition ' namespace Win32 { public enum Logon32Provider { Default = 0, WinNT40 = 2, WinNT50 = 3 } } ' } # Global variable to hold the impersonation context if ($null -eq $Script:ImpersonationContext) { $Script:ImpersonationContext = New-Object -TypeName 'System.Collections.Generic.Stack[System.Security.Principal.WindowsImpersonationContext]' } } |