/**
* {@inheritdoc}
*/
public function createResponse(Application $application, Request $request, Socket $socket) : Response
{
if (!$request->hasHeader('Sec-WebSocket-Key')) {
$sink = new MemorySink('No WebSocket key header provided.');
return new BasicResponse(Response::BAD_REQUEST, ['Connection' => 'close', 'Content-Length' => $sink->getLength()], $sink);
}
$headers = ['Connection' => 'upgrade', 'Upgrade' => 'websocket', 'Sec-WebSocket-Accept' => $this->responseKey(trim($request->getHeader('Sec-WebSocket-Key')))];
if ($application instanceof SubProtocol) {
$protocol = $application->selectSubProtocol(array_map('trim', explode(',', $request->getHeader('Sec-WebSocket-Protocol'))));
if (strlen($protocol)) {
$headers['Sec-WebSocket-Protocol'] = $protocol;
}
}
/*
$extensions = $application->selectExtensions(
array_map('trim', explode(',', $request->getHeader('Sec-WebSocket-Extensions')))
);
if (!empty($extensions)) {
$headers['Sec-WebSocket-Extensions'] = $extensions;
}
*/
$response = new BasicResponse(Response::SWITCHING_PROTOCOLS, $headers);
$connection = $this->createConnection($response, $socket, false);
return new WebSocketResponse($application, $connection, $response);
}
public function hasBadWordpressTrackback()
{
// Fake WordPress trackbacks
// Real ones do not contain Accept:, and have a charset defined
// Real WP trackbacks may contain Accept: depending on the HTTP transport being used by the sending host
return $this->request->hasHeader('content-type') && strpos($this->request->getUserAgent(), 'wordpress') !== false && strpos($this->request->getHeader('content-type'), 'charset=') !== false;
}
/**
* {@inheritdoc}
*/
public function buildOutgoingRequest(Request $request, float $timeout = 0, bool $allowPersistent = false) : \Generator
{
if (!$request->hasHeader('Connection')) {
$request = $request->withHeader('Connection', $allowPersistent ? 'keep-alive' : 'close');
}
if (!$request->hasHeader('Accept')) {
$request = $request->withHeader('Accept', '*/*');
}
if ($this->compressionEnabled) {
$request = $request->withHeader('Accept-Encoding', 'gzip, deflate');
} else {
$request = $request->withoutHeader('Accept-Encoding');
}
return yield from $this->buildOutgoingStream($request, $timeout);
}
/**
* {@inheritDoc}
*/
public function hasHeader($header)
{
return $this->request->hasHeader($header);
}