internal/Invoke-ManagedComputerCommand.ps1
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Function Invoke-ManagedComputerCommand { <# .SYNOPSIS Internal command #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [Alias("ComputerName")] [object]$Server, [System.Management.Automation.PSCredential]$Credential, [Parameter(Mandatory = $true)] [scriptblock]$ScriptBlock, [string[]]$ArgumentList ) if ($Server.GetType() -eq [Microsoft.SqlServer.Management.Smo.Server]) { $server = $server.ComputerNamePhysicalNetBIOS } # Remove instance name if it as passed $server = ($Server.Split("\"))[0] if ($Server -eq $env:COMPUTERNAME -or $Server -eq 'localhost' -or $Server -eq '.') { $Server = 'localhost' if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { throw "This command must be run with elevated privileges for the local host." } } $ipaddr = (Test-Connection $server -Count 1 -ErrorAction Stop).Ipv4Address $ArgumentList += $ipaddr [scriptblock]$setupScriptBlock = { $ipaddr = $args[$args.GetUpperBound(0)] # Just in case we go remote, ensure the assembly is loaded [void][System.Reflection.Assembly]::LoadWithPartialName('Microsoft.SqlServer.SqlWmiManagement') $wmi = New-Object Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer $ipaddr $null = $wmi.Initialize() } $prescriptblock = $setupScriptBlock.ToString() $postscriptblock = $ScriptBlock.ToString() $scriptblock = [ScriptBlock]::Create("$prescriptblock $postscriptblock") try { if ($credential.username -ne $null) { $result = Invoke-Command -ScriptBlock $ScriptBlock -ArgumentList $ArgumentList -Credential $Credential } else { $result = Invoke-Command -ScriptBlock $ScriptBlock -ArgumentList $ArgumentList } Write-Verbose "Local connection for $server succeeded" } catch { try { Write-Verbose "Local connection attempt to $Server failed. Connecting remotely." # For surely resolve stuff $hostname = [System.Net.Dns]::gethostentry($ipaddr) $hostname = $hostname.HostName if ($credential.username -ne $null) { $result = Invoke-Command -ScriptBlock $ScriptBlock -ArgumentList $ArgumentList -Credential $Credential -ComputerName $hostname } else { $result = Invoke-Command -ScriptBlock $ScriptBlock -ArgumentList $ArgumentList -ComputerName $hostname } } catch { Write-Exception $_ throw $_ } } $result | Select-Object * -ExcludeProperty PSComputerName, RunSpaceID, PSShowComputerName } |