Private/Get-UriStatus.ps1
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<#
# Copyright (c) 2021 All Rights Reserved by the RWS Group for and on behalf of its affiliates and subsidiaries. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. #> <# .Synopsis Get the HTTP status of URI .DESCRIPTION Get the HTTP status of URI .EXAMPLE Get-UriStatus -Uri uri .NOTES Use this cmdlet to wrap the fact that Invoke-WebRequest breaks and throws too many errors. #> Function Get-UriStatus { [OutputType([Int])] [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string]$Uri ) begin { Write-Debug "PSCmdlet.ParameterSetName=$($PSCmdlet.ParameterSetName)" foreach ($psbp in $PSBoundParameters.GetEnumerator()) { Write-Debug "$($psbp.Key)=$($psbp.Value)" } } process { try { # Invoke-WebRequest throws errors for status codes it doesn't like # For the 400 and 500 series we need to get the status code from the exception add-type @" using System.Net; using System.Security.Cryptography.X509Certificates; public class TrustAllCertsPolicy : ICertificatePolicy { public bool CheckValidationResult( ServicePoint srvPoint, X509Certificate certificate, WebRequest request, int certificateProblem) { return true; } } "@ [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy $response = Invoke-WebRequest -Uri $uri -UseBasicParsing -DisableKeepAlive -Headers @{"Cache-Control" = "no-cache" } -MaximumRedirection 0 -ErrorAction SilentlyContinue Write-Debug "response.StatusCode=$($response.StatusCode)" Write-Verbose "Invoke-WebRequest -Uri $uri returned a valid response" $response.StatusCode } catch { # Check if the error is not related to certificate validation if (($_.Exception.InnerException) -and ($_.Exception.InnerException -is [System.Security.Authentication.AuthenticationException]) -and ($_.Exception.InnerException.Message -eq "The remote certificate is invalid according to the validation procedure.")) { throw } Write-Debug "_.Exception.Response.StatusCode=$($_.Exception.Response.StatusCode)" Write-Verbose "Invoke-WebRequest -Uri $uri returned a valid response after error handling" [int]$_.Exception.Response.StatusCode } } end { } } |