Powershell Install OpenSSH

if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator))
{
  #Relaunch as an elevated process:
  write-host "Relaunching as an elevated process. Press any key to continue...";
  [void][System.Console]::ReadKey($false);
  Start-Process powershell.exe "-File",('"{0}"' -f $MyInvocation.MyCommand.Path) -Verb RunAs;
  exit;
}

if (-not (Test-Path C:\tools)){
  mkdir C:\tools;
}

if ($null -ne (Get-Service sshd)){
  write-host "OpenSSH is already installed.  Press any key to exit...";
  [void][System.Console]::ReadKey($false);
  exit;
}

write-host "Checking OpenSSH Windows Feature support...";
$ssh = (Get-WindowsCapability -Online | ? Name -like 'OpenSSH.Server*');

if ($null -eq $ssh){
  write-host "Windows Feature not supported...";
  write-host "Downloading OpenSSH...";
  [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;
  Invoke-WebRequest -Uri "https://github.com/PowerShell/Win32-OpenSSH/releases/download/v8.1.0.0p1-Beta/OpenSSH-Win64.zip" -OutFile "C:\tools\OpenSSH-Win64.zip";
  Add-Type -assembly "system.io.compression.filesystem";
  write-host "Decompressing OpenSSH...";
  [io.compression.zipfile]::ExtractToDirectory( 'C:\tools\OpenSSH-Win64.zip','C:\tools' );
  write-host "Installing OpenSSH...";
  C:\tools\OpenSSH-Win64\install-sshd.ps1;
} else {
  if ($ssh.State -ne "Installed"){
	write-host "Windows Feature supported...";
	write-host "Installing OpenSSH...";
    Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0;
  }
}

$svc = (Get-Service sshd);

if ($svc.Status -ne "Running"){
  write-host "Starting SSH Service...";
  Start-Service sshd;
}

if ($svc.StartType -ne "Automatic"){
  write-host "Configuring SSH Service for Automatic Startup...";
  Set-Service -Name sshd -StartupType 'Automatic';
}

if ($null -eq (Get-NetFirewallRule | ? Name -eq sshd)){
  write-host "Adding SSH Service Inbound Firewall Exception...";
  New-NetFirewallRule -Name sshd -DisplayName 'OpenSSH Server (sshd)' -Enabled True -Direction Inbound -Protocol TCP -Action Allow -LocalPort 22;
}