Simple Powershell IIS Site Verification - powershell

Question

part of our checkout process after patching is checking webservers. I'd like create a for each loop that runs the following script looking for 200 or 401 and pops terminal message a "site ok message" with the site name. If it gets anything else, I'd like an error message that gives the site name as well.
I know 401 response isn't really ok, but some of the sites I manage I don't have rights to view. (Hence is why I wanted to go this route, I never know what "looks right" on a visual check. Here is what I have so far.
$HTTP_Request = [System.Net.WebRequest]::Create('https://someinternalserver.com')
$HTTP_Response = $HTTP_Request.GetResponse()
$HTTP_Status = [int]$HTTP_Response.StatusCode
If ($HTTP_Status -eq 200) {
Write-output $http_request | Select-Object RequestUri
Write-Host "SITE OK! 200"
If ($HTTP_Status -eq 401) {
Write-output $http_request | Select-Object RequestUri
Write_Host "SITE OK! 401"}
}
Else {
Write-output $http_request | Select-Object RequestUri
Write-Host "SITE DEAD"}
If ($HTTP_Response -eq $null) { }
Else { $HTTP_Response.Close() }
When I run the command, I am getting error messages that I don't really care about on line 5. How do I supress them? Ideally I am trying to make it look clean as I can so we can just watch info scroll by and note any server that is something other than 200 or 401results
...this was working too sort of but now I seem to have broken it to the point where everything comes back as SITE DEAD.

Answer 1

You could add a try/catch.
$HTTP_Request = [System.Net.WebRequest]::Create('http://localhost:8080')
$HTTP_Response
$HTTP_Status
try {
$HTTP_Response = $HTTP_Request.GetResponse()
$HTTP_Status = [int]$HTTP_Response.StatusCode
}
catch {
}
If ($HTTP_Status -eq 200) {
Write-output $http_request | Select-Object RequestUri
Write-Host "SITE OK! 200"
If ($HTTP_Status -eq 401) {
Write-output $http_request | Select-Object RequestUri
Write_Host "SITE OK! 401"
}
}
Else {
Write-output $http_request | Select-Object RequestUri
Write-Host "SITE DEAD"
}
If ($HTTP_Response -eq $null) { }
Else { $HTTP_Response.Close() }
If you want to hit some URLs in a loop, you can do something like this:
param(
$urls = #('http://localhost:8080', 'https://google.com')
)
Clear-Host
foreach ($url in $urls) {
$HTTP_Request = [System.Net.WebRequest]::Create($url)
$HTTP_Response
$HTTP_Status
try {
$HTTP_Response = $HTTP_Request.GetResponse()
$HTTP_Status = [int]$HTTP_Response.StatusCode
}
catch {
}
If ($HTTP_Status -eq 200) {
Write-Host ($http_request | Select-Object RequestUri).RequestUri
Write-Host "SITE OK! 200 `n"
}
ElseIf ($HTTP_Status -eq 401) {
Write-Host ($http_request | Select-Object RequestUri).RequestUri
Write_Host "SITE OK! 401 `n"
}
Else {
Write-Host ($http_request | Select-Object RequestUri).RequestUri
Write-Host "SITE DEAD `n"
}
# $null should be on the left: https://evotec.xyz/the-curious-case-of-null-should-be-on-the-left-side-of-equality-comparisons-psscriptanalyzer/
If ($null -eq $HTTP_Response) { }
Else { $HTTP_Response.Close() }
}