SharePoint 2013 : Script to Download Pre-Requisites for Offline Install

In automating a SharePoint 2013 SP1 deployment on Windows Server 2012 R2 I came across the following PowerShell script to facilitate offline deployment of all Shareoint 2013 SP1 pre-requisites: https://gallery.technet.microsoft.com/office/DownloadInstall-SharePoint-e6df9eb8

The only issue with this script is that it is for Windows 2012 / SharePoint 2013 RTM only.

The modified copy below facilitates all Windows 2012 R2 / SharePoint 2013 SP1 pre-requisite downloads – including naming of the downloads as required by the pre-requisite installer.

{code lang:text showtitle:false lines:false hidden:false}#***************************************************************************************
# Written by Craig Lussier - http://craiglussier.com
#
# Udated for Windows 2012 R2/SharePoint 2013 SP1 by Chris Bradford - 
#
# This script downloads SharePoint 2013 Prerequisites
#
# -Only run this script on Windows Server 2012 (RTM, either Standard or Datacenter)
# -Do not run this script on a Windows Server 2008 R2 SP1 Server!
# ---These are the Prerequisites for Windows Server 2012
# -Run this script as a local server Administrator
# -Run PowerShell as Administrator
#
# Don't forget to: Set-ExecutionPolicy RemoteSigned
# If you have not done so already within you Windows Server 2012 server
#****************************************************************************************
param([string] $SharePoint2013Path = $(Read-Host -Prompt "Please enter the directory path to where you wish to save the SharePoint 2013 Prerequisite files."))

# Import Required Modules
Import-Module BitsTransfer

# Specify download url's for SharePoint 2013 prerequisites
$DownloadUrls = (
         "http://download.microsoft.com/download/9/1/3/9138773A-505D-43E2-AC08-9A77E1E0490B/1033/x64/sqlncli.msi", # Microsoft SQL Server 2008 R2 SP1 Native Client
         "http://download.microsoft.com/download/E/0/0/E0060D8F-2354-4871-9596-DC78538799CC/Synchronization.msi", # Microsoft Sync Framework Runtime v1.0 SP1 (x64)
         "http://download.microsoft.com/download/A/6/7/A678AB47-496B-4907-B3D4-0A2D280A13C0/WindowsServerAppFabricSetup_x64.exe", # Windows Server App Fabric
         "http://download.microsoft.com/download/7/B/5/7B51D8D1-20FD-4BF0-87C7-4714F5A1C313/AppFabric1.1-RTM-KB2671763-x64-ENU.exe", # CU 1 for AppFabric 1.1 (KB2671763)
         "http://download.microsoft.com/download/7/B/5/7B51D8D1-20FD-4BF0-87C7-4714F5A1C313/AppFabric1.1-RTM-KB2671763-x64-ENU.exe", # Cumulative Update Package 1 for Microsoft AppFabric 1.1 for Windows Server (KB2671763)
         "http://download.microsoft.com/download/D/7/2/D72FD747-69B6-40B7-875B-C2B40A6B2BDD/Windows6.1-KB974405-x64.msu", #Windows Identity Foundation (KB974405)
         "http://download.microsoft.com/download/0/1/D/01D06854-CA0C-46F1-ADBA-EBF86010DCC6/rtm/MicrosoftIdentityExtensions-64.msi", # Microsoft Identity Extensions
         "http://download.microsoft.com/download/9/1/D/91DA8796-BE1D-46AF-8489-663AB7811517/setup_msipc_x64.msi", # Microsoft Information Protection and Control Client
         "http://download.microsoft.com/download/8/F/9/8F93DBBD-896B-4760-AC81-646F61363A6D/WcfDataServices.exe", # Microsoft WCF Data Services 5.0
         "http://download.microsoft.com/download/1/C/A/1CAA41C7-88B9-42D6-9E11-3C655656DAB1/WcfDataServices.exe" # Microsoft WCF Data Services 5.6 (rename this download to WcfDataServices56.exe)
	)

function DownLoadPreRequisites() {
	Write-Host ""
	Write-Host "====================================================================="
	Write-Host " Downloading SharePoint 2013 Prerequisites Please wait..."
	Write-Host "====================================================================="
	$ReturnCode = 0

	foreach ($DownLoadUrl in $DownloadUrls) {
		## Get the file name based on the portion of the URL after the last slash
		If ($DownloadUrl -eq "http://download.microsoft.com/download/1/C/A/1CAA41C7-88B9-42D6-9E11-3C655656DAB1/WcfDataServices.exe") {$filename = "WcfDataServices56.exe"}
    Else {$FileName = $DownLoadUrl.Split('/')[-1]}

	Try {
		## Check if destination file already exists
		If (!(Test-Path "$SharePoint2013Path\$FileName")){
			## Begin download
			Start-BitsTransfer -Source $DownLoadUrl -Destination $SharePoint2013Path\$fileName -DisplayName "Downloading `'$FileName`' to $SharePoint2013Path" -Priority High -Description "From $DownLoadUrl..." -ErrorVariable err
		If ($err) {Throw ""}}
		Else {
			Write-Host " - File $FileName already exists, skipping..."
			}
		}
		Catch {
			$ReturnCode = -1
			Write-Warning " - An error occurred downloading `'$FileName`'"
			Write-Error $_
			break
			}
		}
	Write-Host " - Done downloading Prerequisites required for SharePoint 2013"
	return $ReturnCode
	}

function CheckProvidedDownloadPath() {
	$ReturnCode = 0
	Try {
		# Check if destination path exists
		If (Test-Path $SharePoint2013Path) {
			# Remove trailing slash if it is present
			$script:SharePoint2013Path = $SharePoint2013Path.TrimEnd('\')
			$ReturnCode = 0
		}
	Else {
		$ReturnCode = -1
		Write-Host ""
		Write-Warning "Your specified download path does not exist. Please verify your download path then run this script again."
		Write-Host ""
		}
	}
	Catch {
		$ReturnCode = -1
		Write-Warning "An error has occurred when checking your specified download path"
		Write-Error $_
		break
		}
	return $ReturnCode
	}

function DownloadPreReqs() {
	$rc = 0
	$rc = CheckProvidedDownloadPath
	# Download Pre-Reqs
	if($rc -ne -1) {
		$rc = DownLoadPreRequisites
		}
	if($rc -ne -1) {
		Write-Host ""
		Write-Host "Script execution is now complete!"
		Write-Host ""
		}
	}

DownloadPreReqs