functions/AccessRules/Invoke-DCAccessRule.ps1
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function Invoke-DCAccessRule { <# .SYNOPSIS Applies the desired state for filesystem permissions on paths on relevant DCs. .DESCRIPTION Applies the desired state for filesystem permissions on paths on relevant DCs. Use Register-DCAccessRule to define the desired state. Use Test-DCAccessRule to test, what should be changed. By default, all pending access rule changes will be applied, specify the explicit test results you want to process to override this. .PARAMETER InputObject The specific test results produced by Test-DCAccessRule to apply. If you do not specify this parameter, ALL pending changes will be performed! .PARAMETER Server The server / domain to work with. .PARAMETER Credential The credentials to use for this operation. .PARAMETER EnableException This parameters disables user-friendly warnings and enables the throwing of exceptions. This is less user friendly, but allows catching exceptions in calling scripts. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .EXAMPLE PS C:\> Invoke-DCAccessRule -Server corp.contoso.com Brings all DCs of the corp.contoso.com domain into their desired state as far as filesystem Access Rules are concerned. #> [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSReviewUnusedParameter", "")] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseShouldProcessForStateChangingFunctions", "")] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseUsingScopeModifierInNewRunspaces", "")] [CmdletBinding(SupportsShouldProcess = $true)] param ( [Parameter(ValueFromPipeline = $true)] $InputObject, [PSFComputer] $Server, [PSCredential] $Credential, [switch] $EnableException ) begin { $parameters = $PSBoundParameters | ConvertTo-PSFHashtable -Include Server, Credential $parameters['Debug'] = $false Assert-ADConnection @parameters -Cmdlet $PSCmdlet Invoke-PSFCallback -Data $parameters -EnableException $true -PSCmdlet $PSCmdlet Assert-Configuration -Type fileSystemAccessRules -Cmdlet $PSCmdlet Set-DCDomainContext @parameters $psCred = $PSBoundParameters | ConvertTo-PSFHashtable -Include Credential $psSessions = @{ } #region Functions function Add-AccessRule { [CmdletBinding()] param ( $Session, [string] $Path, $AccessRule ) $result = Invoke-Command -Session $Session -ScriptBlock { $referenceRule = $using:AccessRule try { $rule = New-Object System.Security.AccessControl.FileSystemAccessRule( ([System.Security.Principal.SecurityIdentifier]$referenceRule.IdentityReference.ToString()), $referenceRule.FileSystemRights, $referenceRule.InheritanceFlags, $referenceRule.PropagationFlags, $referenceRule.AccessControlType ) $acl = Get-Acl -Path $using:Path -ErrorAction Stop $acl.AddAccessRule($rule) $acl | Set-Acl -Path $using:Path -ErrorAction Stop -Confirm:$false [PSCustomObject]@{ Success = $true Path = $using:Path Rule = $referenceRule Error = $null } } catch { [PSCustomObject]@{ Success = $false Path = $using:Path Rule = $referenceRule Error = $_ } } } if (-not $result.Success) { throw "Error: $($result.Error)" } } function Remove-AccessRule { [CmdletBinding()] param ( $Session, [string] $Path, $AccessRule ) $result = Invoke-Command -Session $Session -ScriptBlock { function Convert-UintToInt([uint32]$Number) { [System.BitConverter]::ToInt32(([System.BitConverter]::GetBytes($Number)), 0) } try { $referenceRule = $using:AccessRule $acl = Get-Acl -Path $using:Path -ErrorAction Stop foreach ($rule in $acl.Access) { if ($rule.IsInherited) { continue } if ($rule.IdentityReference.Translate([System.Security.Principal.SecurityIdentifier]).ToString() -ne $referenceRule.IdentityReference.ToString()) { continue } if ([int]$rule.FileSystemRights -ne (Convert-UintToInt -Number $referenceRule.FileSystemRightsNumeric)) { continue } if ($rule.InheritanceFlags -ne $referenceRule.InheritanceFlags) { continue } if ($rule.PropagationFlags -ne $referenceRule.PropagationFlags) { continue } if ($rule.AccessControlType -ne $referenceRule.AccessControlType) { continue } $null = $acl.RemoveAccessRule($rule) } $acl | Set-Acl -Path $using:Path -ErrorAction Stop -Confirm:$false [PSCustomObject]@{ Success = $true Path = $using:Path Rule = $referenceRule Error = $null } } catch { [PSCustomObject]@{ Success = $false Path = $using:Path Rule = $using:AccessRule Error = $_ } } } if (-not $result.Success) { throw "Error: $($result.Error)" } } #endregion Functions } process { if (-not $InputObject) { $InputObject = Test-DCAccessRule @parameters } foreach ($testItem in ($InputObject | Sort-Object Type -Descending)) # Delete before Add { # Catch invalid input - can only process test results if ($testItem.PSObject.TypeNames -notcontains 'DCManagement.FSAccessRule.TestResult') { Stop-PSFFunction -String 'General.Invalid.Input' -StringValues 'Test-DCAccessRule', $testItem -Target $testItem -Continue -EnableException $EnableException } if (-not $psSessions[$testItem.Server]) { try { $psSessions[$testItem.Server] = New-PSSession -ComputerName $testItem.Server @psCred -ErrorAction Stop } catch { Stop-PSFFunction -String 'Invoke-DCAccessRule.Access.Error' -StringValues $testItem.Server -Target $testItem -Continue -EnableException $EnableException -ErrorRecord $_ } } $psSession = $psSessions[$testItem.Server] switch ($testItem.Type) { #region Add 'Add' { $change = @($testItem.Changed)[0] Invoke-PSFProtectedCommand -ActionString 'Invoke-DCAccessRule.AccessRule.Add' -ActionStringValues $change.DisplayName, $change.FileSystemRights, $change.AccessControlType -Target $testItem -ScriptBlock { Add-AccessRule -Session $psSession -Path $testItem.Identity -AccessRule $change } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue } #endregion Add #region Remove 'Remove' { $change = @($testItem.Changed)[0] Invoke-PSFProtectedCommand -ActionString 'Invoke-DCAccessRule.AccessRule.Remove' -ActionStringValues $change.DisplayName, $change.FileSystemRights, $change.AccessControlType -Target $testItem -ScriptBlock { Remove-AccessRule -Session $psSession -Path $testItem.Identity -AccessRule $change } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue } #endregion Remove } } } end { $psSessions.Values | Remove-PSSession -Confirm:$false -ErrorAction Ignore } } |