SSL connection measurement

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

$url = $args[0]
if ($args[1]) { [int]$keepalive = $args[1] } else { $keepalive = 15 }
$progressPreference = 'silentlyContinue'


write-host "Creating initial connection to $url" -NoNewline
$initialconnection = measure-command {
    $result = Invoke-WebRequest -Uri $url -UseBasicParsing
    }
write-host -ForegroundColor Green " Done"


if ($result.Headers["Keep-Alive"] -match "timeout=([0-9]{0,3})")
{
    [int]$keepalive = $Matches[1]
    $keepalive = $keepalive + 2
    write-host "Waiting $keepalive seconds to let the server clear the connection"
}
else
{
    write-host "Waiting DEFAULT $keepalive seconds to let the server clear the connection"

}
sleep $keepalive




write-host "Creating session resumption request to $url" -NoNewline
$resumeconnection = measure-command {
    $result = Invoke-WebRequest -Uri $url -UseBasicParsing
    }
write-host -ForegroundColor Green " Done"

write-host "Creating keepalive request to $url" -NoNewline
$keepaliverequest = measure-command {
    $result = Invoke-WebRequest -Uri $url -UseBasicParsing
    }
write-host -ForegroundColor Green " Done"


write-host "Initial connection: " $initialconnection.TotalMilliseconds
write-host "Resume connection: " $resumeconnection.TotalMilliseconds
write-host "KeepAlive request: " $keepaliverequest.TotalMilliseconds