DSCResources/VE_ROABuildingBlock/VE_ROABuildingBlock.psm1
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data localizedData { # Localized messages; culture="en-US" ConvertFrom-StringData @' CannotFindPathError = Cannot find path '{0}' because it does not exist. ResourceCorrectPropertyState = Resource property '{0}' is in the desired state. ResourceIncorrectPropertyState = Resource property '{0}' is NOT in the desired state. Expected '{1}', actual '{2}'. ResourceInDesiredState = Resource '{0}' is in the desired state. ResourceNotInDesiredState = Resource '{0}' is NOT in the desired state. ImportingBuildingBlock = Importing building block '{0}'. '@ } #region Private function SetBuildingBlockFileHash { <# .SYNOPSIS Updates the registry with friendly names and hash values. #> [CmdletBinding()] param ( [Parameter(Mandatory)] [System.String] $RegistryName, [Parameter(Mandatory)] [System.String] $FileHash ) process { if (-not (Test-Path -Path $script:DefaultRegistryPath -PathType Container)) { $registryParentPath = Split-Path -Path $script:DefaultRegistryPath -Parent; $registryKeyName = Split-Path -Path $script:DefaultRegistryPath -Leaf; [ref] $null = New-Item -Path $registryParentPath -ItemType Directory -Name $registryKeyName; } [ref] $null = Set-ItemProperty -Path $script:DefaultRegistryPath -Name $RegistryName -Value $FileHash; } #end process } #end function SetBuildingBlockFileHash function ResolveBuildingBlock { <# .SYNOPSIS Returns a list of resolved RES ONE Automation building block files/hashes. #> [CmdletBinding()] [OutputType([System.Management.Automation.PSCustomObject])] param ( ## File path containing RES ONE Automation Manager building blocks. [Parameter(Mandatory)] [System.String] $Path ) process { $paths = @() foreach ($filePath in $Path) { if (-not (Test-Path -Path $filePath)) { $exMessage = $localizedData.CannotFindPathError -f $filePath; $ex = New-Object System.Management.Automation.ItemNotFoundException $exMessage; $category = [System.Management.Automation.ErrorCategory]::ObjectNotFound; $errRecord = New-Object System.Management.Automation.ErrorRecord $ex, 'PathNotFound', $category, $filePath; $psCmdlet.WriteError($errRecord); continue; } # Resolve any wildcards that might be in the path $provider = $null; $paths += $psCmdlet.SessionState.Path.GetResolvedProviderPathFromPSPath($filePath, [ref] $provider); } foreach ($filePath in $paths) { Write-Output -InputObject ([PSCustomObject] @{ Path = $filePath; FileHash = (Get-FileHash -Path $filePath -Algorithm MD5).Hash; RegistryName = (Split-Path -Path $filePath -Leaf).Replace(' ','').Replace('-','').Replace('.','_'); }); } } #end process } #end function ResolveBuildingBlock #endregion Private function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( ## RES ONE Automation database server name/instance (equivalient to DBSERVER). [Parameter(Mandatory)] [System.String] $Path, ## RES ONE Automation authentication credential. [Parameter(Mandatory)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, ## Credential supplied is an internal RES ONE Automation user. [Parameter()] [System.Boolean] $IsRESONEAutomationCredential ) process { $buildingBlocks = ResolveBuildingBlock -Path $Path; foreach ($bb in $buildingBlocks) { Write-Output -InputObject @{ Path = $bb.Path; } } } } #end function Get-TargetResource function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory)] [System.String] $Path, ## RES ONE Automation authentication credential. [Parameter(Mandatory)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter()] [System.Boolean] $IsRESONEAutomationCredential ) process { $inCompliance = $true; $buildingBlocks = ResolveBuildingBlock -Path $Path; foreach ($bb in $buildingBlocks) { $registryName = $bb.RegistryName; $registryHash = (Get-ItemProperty -Path $script:DefaultRegistryPath -Name $bb.RegistryName -ErrorAction SilentlyContinue).$RegistryName; if ($bb.FileHash -ne $registryHash) { Write-Verbose -Message ($localizedData.ResourceIncorrectPropertyState -f $bb.RegistryName, $bb.FileHash, $registryHash); $inCompliance = $false; } else { Write-Verbose -Message ($localizedData.ResourceCorrectPropertyState -f $bb.RegistryName); } } if ($inCompliance) { Write-Verbose -Message ($localizedData.ResourceInDesiredState -f $Path); return $true; } else { Write-Verbose -Message ($localizedData.ResourceNotInDesiredState -f $Path); return $false; } } } #end function Test-TargetResource function Set-TargetResource { [CmdletBinding()] [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseShouldProcessForStateChangingFunctions', '')] param ( [Parameter(Mandatory)] [System.String] $Path, ## RES ONE Automation authentication credential. [Parameter(Mandatory)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter()] [System.Boolean] $IsRESONEAutomationCredential ) process { $buildingBlocks = ResolveBuildingBlock -Path $Path; foreach ($bb in $buildingBlocks) { $registryName = $bb.RegistryName; $registryHash = (Get-ItemProperty -Path $script:DefaultRegistryPath -Name $bb.RegistryName -ErrorAction SilentlyContinue).$registryName; if ($bb.FileHash -ne $registryHash) { try { ## Import the building block $PSBoundParameters['Path'] = $bb.Path; Write-Verbose -Message ($localizedData.ImportingBuildingBlock -f $bb.Path); Import-ROABuildingBlockFile @PSBoundParameters; ## Update the registry/hash value SetBuildingBlockFileHash -RegistryName $bb.RegistryName -FileHash $bb.FileHash; } catch { throw $_ } } } #end foreach building block } #end process } #end function Set-TargetResource ## Import the ROACommon library functions $moduleRoot = Split-Path -Path $MyInvocation.MyCommand.Path -Parent; $moduleParent = Split-Path -Path $moduleRoot -Parent; Import-Module (Join-Path -Path $moduleParent -ChildPath 'ROACommon') -Force; $script:DefaultRegistryPath = 'HKLM:\SOFTWARE\Virtual Engine\RESONEAutomationDsc'; Export-ModuleMember -Function *-TargetResource; |