cDownloadFile.psm1
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[DscResource()] class cDownloadFile { #This property is the url of the file to be downloaded [DscProperty(Key)] [string]$Url #This is the fully qualified path for the file that is expected to be 'Present' or 'Absent' [DscProperty(Mandatory)] [string]$DestinationPath [DscProperty()] [bool] $UpdateOnDiff [DscProperty()] [string]$SASToken [void]Set() { write-verbose "Starting download from url: $($this.Url)" if($this.SASToken -ne $null){ $downloadUrl = $this.Url + $this.SASToken $client = New-Object System.Net.WebClient $client.DownloadFile($downloadUrl, $this.DestinationPath) }else{ $client = New-Object System.Net.WebClient $client.DownloadFile($this.Url,$this.DestinationPath) } } [bool]Test() { Write-Verbose "Checking if $($this.DestinationPath) exists" $file = Test-Path $this.DestinationPath if($file){ Write-Verbose "File Exists" if(!$this.UpdateOnDiff){ return $true } $client = New-Object System.Net.WebClient $client.OpenRead($this.Url)|Out-Null $ServerFileLenght = $client.ResponseHeaders['Content-Lenght'] if($ServerFileLenght -eq $file.Length){ Write-Verbose 'File on server is identical to from existing file.' return $true } } Write-Verbose "New version of file not found!" return $false } [cDownloadFile]Get() { $returnValue = @{ Url = [System.String] DestinationPath = [System.String] UpdateOnDiff = [System.Boolean] SASToken = [System.String] } return $returnValue } } |