DSCResources/MSFT_SPBlobCacheSettings/MSFT_SPBlobCacheSettings.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [parameter(Mandatory = $true)] [System.String] $WebAppUrl, [parameter(Mandatory = $true)] [ValidateSet("Default", "Intranet", "Internet", "Custom", "Extranet")] [System.String] $Zone, [parameter(Mandatory = $true)] [System.Boolean] $EnableCache, [parameter(Mandatory = $false)] [System.String] $Location, [parameter(Mandatory = $false)] [System.UInt16] $MaxSizeInGB, [parameter(Mandatory = $false)] [System.UInt32] $MaxAgeInSeconds, [parameter(Mandatory = $false)] [System.String] $FileTypes, [parameter(Mandatory = $false)] [System.Management.Automation.PSCredential] $InstallAccount ) Write-Verbose -Message "Getting blob cache settings for $WebAppUrl" $result = Invoke-SPDSCCommand -Credential $InstallAccount -Arguments $PSBoundParameters -ScriptBlock { $params = $args[0] $wa = Get-SPWebApplication -Identity $params.WebAppUrl -ErrorAction SilentlyContinue if ($null -eq $wa) { throw "Specified web application was not found." } $zone = [Microsoft.SharePoint.Administration.SPUrlZone]::$($params.Zone) $sitePath = $wa.IisSettings[$zone].Path $webconfiglocation = Join-Path $sitePath "web.config" [xml]$webConfig = Get-Content -Path $webConfigLocation if ($webconfig.configuration.SharePoint.BlobCache.enabled -eq "true") { $cacheEnabled = $true } else { $cacheEnabled = $false } try { $maxsize = [Convert]::ToUInt16($webconfig.configuration.SharePoint.BlobCache.maxSize) } catch [FormatException] { $maxsize = 0 } catch { throw "Error: $($_.Exception.Message)" } try { $maxage = [Convert]::ToUInt32($webconfig.configuration.SharePoint.BlobCache."max-age") } catch [FormatException] { $maxage = 0 } catch { throw "Error: $($_.Exception.Message)" } $returnval = @{ WebAppUrl = $params.WebAppUrl Zone = $params.Zone EnableCache = $cacheEnabled Location = $webconfig.configuration.SharePoint.BlobCache.location MaxSizeInGB = $maxsize MaxAgeInSeconds = $maxage FileTypes = $webconfig.configuration.SharePoint.BlobCache.path InstallAccount = $params.InstallAccount } return $returnval } return $result } function Set-TargetResource { [CmdletBinding()] param ( [parameter(Mandatory = $true)] [System.String] $WebAppUrl, [parameter(Mandatory = $true)] [ValidateSet("Default", "Intranet", "Internet", "Custom", "Extranet")] [System.String] $Zone, [parameter(Mandatory = $true)] [System.Boolean] $EnableCache, [parameter(Mandatory = $false)] [System.String] $Location, [parameter(Mandatory = $false)] [System.UInt16] $MaxSizeInGB, [parameter(Mandatory = $false)] [System.UInt32] $MaxAgeInSeconds, [parameter(Mandatory = $false)] [System.String] $FileTypes, [parameter(Mandatory = $false)] [System.Management.Automation.PSCredential] $InstallAccount ) Write-Verbose -Message "Setting blob cache settings for $WebAppUrl" $CurrentValues = Get-TargetResource @PSBoundParameters $changes = @{} if ($PSBoundParameters.ContainsKey("EnableCache")) { if ($CurrentValues.EnableCache -ne $EnableCache) { $changes.EnableCache = $EnableCache } } if ($PSBoundParameters.ContainsKey("Location")) { if ($CurrentValues.Location -ne $Location) { $changes.Location = $Location } } if ($PSBoundParameters.ContainsKey("MaxSizeInGB")) { if ($CurrentValues.MaxSizeInGB -ne $MaxSizeInGB) { $changes.MaxSizeInGB = $MaxSizeInGB } } if ($PSBoundParameters.ContainsKey("MaxAgeInSeconds")) { if ($CurrentValues.MaxAgeInSeconds -ne $MaxAgeInSeconds) { $changes.MaxAgeInSeconds = $MaxAgeInSeconds } } if ($PSBoundParameters.ContainsKey("FileTypes")) { if ($CurrentValues.FileTypes -ne $FileTypes) { $changes.FileTypes = $FileTypes } } if ($changes.Count -ne 0) { ## Perform changes Invoke-SPDSCCommand -Credential $InstallAccount -Arguments @($PSBoundParameters, $changes) -ScriptBlock { $params = $args[0] $changes = $args[1] $wa = Get-SPWebApplication -Identity $params.WebAppUrl -ErrorAction SilentlyContinue if ($null -eq $wa) { throw "Specified web application could not be found." } Write-Verbose -Verbose "Processing changes" $zone = [Microsoft.SharePoint.Administration.SPUrlZone]::$($params.Zone) $sitePath = $wa.IisSettings[$zone].Path $timestamp = Get-Date -Format "yyyyMMdd_HHmmss" $webconfiglocation = Join-Path $sitePath "web.config" $webconfigbackuplocation = Join-Path $sitePath "web_config-$timestamp.backup" Copy-Item $webconfiglocation $webconfigbackuplocation [xml]$webConfig = Get-Content -Path $webConfigLocation if ($changes.ContainsKey("EnableCache")) { $webconfig.configuration.SharePoint.BlobCache.enabled = $changes.EnableCache.ToString() } if ($changes.ContainsKey("Location")) { $webconfig.configuration.SharePoint.BlobCache.location = $changes.Location } if ($changes.ContainsKey("MaxSizeInGB")) { $webconfig.configuration.SharePoint.BlobCache.maxSize = $changes.MaxSizeInGB.ToString() } if ($changes.ContainsKey("MaxAgeInSeconds")) { $webconfig.configuration.SharePoint.BlobCache."max-age" = $changes.MaxAgeInSeconds.ToString() } if ($changes.ContainsKey("FileTypes")) { $webconfig.configuration.SharePoint.BlobCache.path = $changes.FileTypes } $webconfig.Save($webconfiglocation) } } ## Check Blob Cache folder if ($Location) { if (-not(Test-Path $Location)) { Write-Verbose "Create Blob Cache Folder $Location" try { New-Item $Location -ItemType Directory | Out-Null } catch [DriveNotFoundException] { throw "Specified drive does not exist" } catch { throw "Error creating Blob Cache folder: $($_.Exception.Message)" } } } } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [parameter(Mandatory = $true)] [System.String] $WebAppUrl, [parameter(Mandatory = $true)] [ValidateSet("Default", "Intranet", "Internet", "Custom", "Extranet")] [System.String] $Zone, [parameter(Mandatory = $true)] [System.Boolean] $EnableCache, [parameter(Mandatory = $false)] [System.String] $Location, [parameter(Mandatory = $false)] [System.UInt16] $MaxSizeInGB, [parameter(Mandatory = $false)] [System.UInt32] $MaxAgeInSeconds, [parameter(Mandatory = $false)] [System.String] $FileTypes, [parameter(Mandatory = $false)] [System.Management.Automation.PSCredential] $InstallAccount ) $CurrentValues = Get-TargetResource @PSBoundParameters Write-Verbose -Message "Testing blob cache settings for $WebAppUrl" if ($null -eq $CurrentValues) { return $false } if ($Location) { if (-not(Test-Path $Location)) { Write-Verbose "Blob Cache Folder $Location does not exist" return $false } } return Test-SPDSCSpecificParameters -CurrentValues $CurrentValues ` -DesiredValues $PSBoundParameters ` -ValuesToCheck @("EnableCache", "Location", "MaxSizeInGB", "FileType", "MaxAgeInSeconds") } Export-ModuleMember -Function *-TargetResource |