Parse out the IPV4 and URL O365 endpoint for conversion to JSON file for updating geoblock exceptions

Parse-O365Endpoints.ps1

$guid = New-Guid
$webdata = Invoke-RestMethod -Uri "https://endpoints.office.com/endpoints/worldwide?clientrequestid=$guid"

<# webdata example
id                     : 65
serviceArea            : Common
serviceAreaDisplayName : Microsoft 365 Common and Office Online
urls                   : {account.office.net}
ips                    : {52.108.0.0/14, 2603:1006:1400::/40, 2603:1016:2400::/40, 2603:1026:2400::/40...}
tcpPorts               : 80,443
expressRoute           : True
category               : Allow
required               : True
#>

$urlsWithIPs = $webdata | where ips -ne $null

$data = foreach ($entry in $urlsWithIPs) {
            foreach ($ip in $entry.ips) {
                if ($ip -match "\/([1-9]|[12][0-9]|3[01])\b") { #this matches only CIDR ranges between /1 to /32
                    $props = [ordered]@{
                        "address" = $ip;
                        "description" = "$($entry.servicearea) for geoblock";
                        "reason" = 2;
                        "type" = 2

                    }
                        New-Object -TypeName PSObject -Property $props
                    }
            }
        }

$urls = $webdata | where urls -ne $Null

$moreData = foreach ($url in $urls) {
    foreach ($URI in $url.urls) {
        $props = [ordered]@{
            "address" = $URI;
            "description" = "$($entry.servicearea) for geoblock";
            "reason" = 2;
            "type" = 7

        }
            New-Object -TypeName PSObject -Property $props
        }
}
$allData = $data + $moreData
$date = get-date -Format MMddyy

New-object -TypeName PSObject -Property @{"geoblock_exc_list"=$allData} | ConvertTo-Json | out-file "C:\temp\$($date)_o365ips.txt"

Now it does URL's as well

Now it outputs the file with the geoblock_exc_list for the JSON so there's no manual manipulation

Now uses a new GUID for web requests per: https://docs.microsoft.com/en-us/microsoft-365/enterprise/microsoft-365-ip-web-service?view=o365-worldwide#common-parameters

Realizing now there is https://docs.microsoft.com/en-us/microsoft-365/enterprise/microsoft-365-ip-web-service?view=o365-worldwide#endpoints-web-method which indicates there is a NOIPV6=true parameter that could be used like:

$webdata = Invoke-RestMethod -Uri "https://endpoints.office.com/endpoints/worldwide?NOIPV6=true&clientrequestid=$guid"

Which would eliminate needing to filter for IPV4 afterwards