# Read-only: every 500 ms, log Chrome's established TCP connections (remote address + port).
# Stops when conn.stop appears next to this script.
$dir = Split-Path -Parent $MyInvocation.MyCommand.Path
$out = Join-Path $dir 'conns.csv'
$stop = Join-Path $dir 'conn.stop'
if (Test-Path $stop) { Remove-Item $stop }
'ts,remote,port' | Out-File $out -Encoding ascii
while (-not (Test-Path $stop)) {
    $ids = (Get-Process chrome -ErrorAction SilentlyContinue).Id
    $ts = Get-Date -Format 'HH:mm:ss.f'
    if ($ids) {
        Get-NetTCPConnection -State Established -ErrorAction SilentlyContinue |
            Where-Object { $ids -contains $_.OwningProcess -and $_.RemotePort -eq 443 } |
            ForEach-Object { "{0},{1},{2}" -f $ts, $_.RemoteAddress, $_.LocalPort } |
            Out-File $out -Append -Encoding ascii
    }
    Start-Sleep -Milliseconds 500
}