PHPDaemon\Servers\WebSocket\Connection::handshakeAfter PHP Method

    protected function handshakeAfter()
    {
        $extraHeaders = '';
        foreach ($this->headers as $k => $line) {
            if ($k !== 'STATUS') {
                $extraHeaders .= $line . "\r\n";
            }
        }
        if (!$this->sendHandshakeReply($extraHeaders)) {
            Daemon::$process->log(get_class($this) . '::' . __METHOD__ . ' : Handshake protocol failure for client "' . $this->addr . '"');
            $this->finish();
            return false;
        }
        $this->handshaked = true;
        $this->headers_sent = true;
        $this->state = static::STATE_HANDSHAKED;
        if (is_callable([$this->route, 'onHandshake'])) {
            $this->route->onWakeup();
            $this->route->onHandshake();
            if ($this->route) {
                $this->route->onSleep();
            }
        }
        return true;
    }