private function sendHandshakeResponse()
{
// Last 8 bytes of the client's handshake are used for key calculation later
$l8b = $this->request->getContent();
// Check for 2-key based handshake (Hixie protocol draft)
$key1 = $this->getHandshakeRequest()->getHeader('Sec-Websocket-Key1')->getFieldValue();
$key2 = $this->getHandshakeRequest()->getHeader('Sec-Websocket-Key2')->getFieldValue();
// Origin checking (TODO)
$originHeader = $this->getHandshakeRequest()->getHeader('Origin', null);
$host = $this->getHandshakeRequest()->getHeader('Host')->getFieldValue();
$location = $this->getHandshakeRequest()->getUriString();
// Build response
$response = new Response();
$response->setStatusCode(101);
$response->setReasonPhrase("WebSocket Protocol Handshake");
$headers = new Headers();
$response->setHeaders($headers);
$headers->addHeaderLine("Upgrade", "WebSocket");
$headers->addHeaderLine("Connection", "Upgrade");
if ($originHeader) {
$headers->addHeaderLine("Sec-WebSocket-Origin", $originHeader->getFieldValue());
}
$headers->addHeaderLine("Sec-WebSocket-Location", "ws://{$host}{$location}");
// Build HIXIE response
$response->setContent(self::calcHixieResponse($key1, $key2, $l8b));
$this->setResponse($response);
$handshakeRequest = new Handshake($this->getHandshakeRequest(), $this->getHandshakeResponse());
$this->emit("handshake", [$handshakeRequest]);
if ($handshakeRequest->isAborted()) {
$this->close();
} else {
$this->socket->write($response->toString());
$this->logger->debug("Got an HYBI style request, sent HYBY handshake response");
$this->emit("connect");
}
}
private function readHandshakeResponse($data)
{
$response = Response::fromString($data);
$this->setResponse($response);
$handshake = new Handshake($this->request, $response);
$this->emit("handshake", array($handshake));
if ($handshake->isAborted()) {
$this->close();
return '';
}
$this->connected = true;
$this->emit("connect");
return $response->getContent();
}
