}

      when {
        "no-cache".equals(directive, ignoreCase = true) -> {
          noCache = true
        }
        "no-store".equals(directive, ignoreCase = true) -> {
          noStore = true
        }
        "max-age".equals(directive, ignoreCase = true) -> {
          maxAgeSeconds = parameter.toNonNegativeInt(-1)
        }
        "s-maxage".equals(directive, ignoreCase = true) -> {

        fromSink.writeShort(toSocket.localPort)
        fromSink.emit()
        logger.log(Level.INFO, "SocksProxy connected $fromAddress to $toAddress")

        // Copy sources to sinks in both directions.
        val toSource = toSocket.source().buffer()
        val toSink = toSocket.sink().buffer()
        openSockets.add(toSocket)
        transfer(fromAddress, toAddress, fromSource, toSink)