Functions/TestDownloadUri.ps1
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Function Test-DownloadUri { <# .SYNOPSIS Tests that a url is valid .DESCRIPTION Returns a status code from an http request of a url. Used to verify that download links work. .PARAMETER Uri The url that we are checking is valid .INPUTS N/A .OUTPUTS Status code from an http response or null if link is invalid .EXAMPLE $uri = "www.google.com" $status = Test-DownloadUri -uri $uri if ($status -ne 200) {Write-Error "oh dear"} .NOTES N/A #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [string] $uri ) $httpRequest = [System.Net.WebRequest]::Create($uri) try { $httpResponse = $httpRequest.GetResponse() $httpStatus = $httpResponse.StatusCode If ($httpStatus -eq 200) { Write-Verbose "Download link is OK." -Verbose } Else { Write-Error "Download link no longer works." } $httpResponse.Close() Return $httpStatus } catch { Write-Error "Download link no longer works." Return $null } } |