Private/Resolve-SystemNetWebRequest.ps1
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Function Resolve-SystemNetWebRequest { <# .SYNOPSIS Resolve a URL that returns a 301/302 response and returns the redirected URL Uses System.Net.WebRequest to find 301/302 headers and return the ResponseUri #> [OutputType([System.String])] [CmdletBinding(SupportsShouldProcess = $False)] param ( [Parameter(Mandatory = $True, Position = 0)] [ValidateNotNullOrEmpty()] [System.String] $Uri, [Parameter()] [ValidateNotNullOrEmpty()] [System.Int32] $MaximumRedirection = 3 ) try { $httpWebRequest = [System.Net.WebRequest]::Create($Uri) $httpWebRequest.MaximumAutomaticRedirections = $MaximumRedirection $httpWebRequest.AllowAutoRedirect = $true if (Test-ProxyEnv) { $ProxyObj = New-Object -TypeName "System.Net.WebProxy" $ProxyObj.Address = $script:EvergreenProxy $ProxyObj.UseDefaultCredentials = $true $httpWebRequest.Proxy = $ProxyObj if (Test-ProxyEnv -Creds) { $ProxyObj.UseDefaultCredentials = $false $ProxyObj.Credentials = $script:EvergreenProxyCreds $httpWebRequest.UseDefaultCredentials = $false $httpWebRequest.Proxy = $ProxyObj $httpWebRequest.Credentials = $script:EvergreenProxyCreds } } else { $httpWebRequest.UseDefaultCredentials = $true } Write-Verbose -Message "$($MyInvocation.MyCommand): Attempting to resolve: $Uri." $webResponse = $httpWebRequest.GetResponse() } catch { Write-Warning -Message "$($MyInvocation.MyCommand): Error at URI: $Uri." Write-Warning -Message "$($MyInvocation.MyCommand): Response: $($_)." Write-Warning -Message "$($MyInvocation.MyCommand): For troubleshooting steps see: $($script:resourceStrings.Uri.Info)." Write-Error -Message "$($MyInvocation.MyCommand): $($_.Exception.Message)." } finally { if ($webResponse) { Write-Verbose -Message "$($MyInvocation.MyCommand): Response: [$($webResponse.StatusCode)]." Write-Verbose -Message "$($MyInvocation.MyCommand): Resolved to: [$($webResponse.ResponseUri.AbsoluteUri)]." # Construct the output; Return the custom object to the pipeline $PSObject = [PSCustomObject] @{ LastModified = $webResponse.LastModified ContentLength = $webResponse.ContentLength Headers = $webResponse.Headers ResponseUri = $webResponse.ResponseUri StatusCode = $webResponse.StatusCode } Write-Output -InputObject $PSObject $webResponse.Dispose() } } } |