functions/Get-GPWmiFilter.ps1
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function Get-GPWmiFilter { <# .SYNOPSIS Get a WMI filter in current domain .DESCRIPTION The Get-GPWmiFilter function query WMI filter(s) in current domain with specific name or GUID. .PARAMETER Name The name of WMI filter you want to query out. Default Value: '*' .PARAMETER Guid The guid of WMI filter you want to query out. .PARAMETER Server The server to contact. Specify the DNS Name of a Domain Controller. .PARAMETER Credential The credentials to use to contact the targeted server. .EXAMPLE PS C:\> Get-GPWmiFilter -Name 'Virtual Machines' Get WMI filter(s) with the name 'Virtual Machines' .EXAMPLE PS C:\> Get-GPWmiFilter Get all WMI filters in current domain #> [CmdletBinding(DefaultParameterSetName = 'ByName')] param ( [Parameter(ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, Position = 0, ParameterSetName = "ByName")] [ValidateNotNull()] [string[]] $Name = "*", [Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true, ParameterSetName = "ByGUID")] [ValidateNotNull()] [Guid[]] $Guid, [string] $Server = $env:USERDNSDOMAIN, [System.Management.Automation.PSCredential] $Credential ) begin { $parameters = @{ Properties = "msWMI-Name", "msWMI-Parm1", "msWMI-Parm2", "msWMI-Author", "msWMI-ID", "Modified", 'nTSecurityDescriptor' } if (Test-PSFParameterBinding -ParameterName Domain) { $parameters['Server'] = $Server } if (Test-PSFParameterBinding -ParameterName Credential) { $parameters['Credential'] = $Credential } $selectProperties = @( '"msWMI-Name" as Name' '"msWMI-Author" as Author' '"msWMI-Parm1" as Description' '"msWMI-ID".Trim("{}") to GUID as ID' 'Modified' '"msWMI-Parm2" as Filter' 'DistinguishedName' 'nTSecurityDescriptor.Owner as SecOwner' 'nTSecurityDescriptor.Access as SecAccess' 'nTSecurityDescriptor as SecACL' ) [System.Collections.ArrayList]$foundPolicies = @() } process { if ($Guid) { foreach ($guidItem in $Guid) { Write-PSFMessage -String 'Get-GPWmiFilter.SearchGuid' -StringValues $guidItem -Level Debug $ldapFilter = "(&(objectClass=msWMI-Som)(Name={$guidItem}))" Get-ADObject @parameters -LDAPFilter $ldapFilter | Select-PSFObject -Property $selectProperties -TypeName 'GroupPolicy.WMIFilter' | Where-Object { if ($foundPolicies -notcontains $_.ID) { $null = $foundPolicies.Add($_.ID) return $true } } } } elseif ($Name) { foreach ($nameItem in $Name) { Write-PSFMessage -String 'Get-GPWmiFilter.SearchName' -StringValues $nameItem -Level Debug $ldapFilter = "(&(objectClass=msWMI-Som)(msWMI-Name=$nameItem))" Get-ADObject @parameters -LDAPFilter $ldapFilter | Select-PSFObject -Property $selectProperties -TypeName 'GroupPolicy.WMIFilter' | Where-Object { if ($foundPolicies -notcontains $_.ID) { $null = $foundPolicies.Add($_.ID) return $true } } } } } } |