/**
* Have the upgrade handler take control of the given socket connection.
*
* This method will send an HTTP/1 upgrade response before the handler takes over.
*/
protected function upgradeResultConnection(UpgradeResultHandler $handler, SocketStream $socket, HttpRequest $request, HttpResponse $response) : \Generator
{
(yield $request->getBody()->discard());
(yield $response->getBody()->discard());
$response = $this->normalizeResponse($request, $response);
$reason = \trim($response->getReasonPhrase());
if ($reason === '') {
$reason = \trim(Http::getReason($response->getStatusCode()));
}
$buffer = \sprintf("HTTP/%s %u%s\r\n", $response->getProtocolVersion(), $response->getStatusCode(), \rtrim(' ' . $reason));
if ($response->getStatusCode() === Http::SWITCHING_PROTOCOLS) {
$buffer .= "Connection: upgrade\r\n";
}
foreach ($response->getHeaders() as $name => $header) {
$name = Http::normalizeHeaderName($name);
foreach ($header as $value) {
$buffer .= $name . ': ' . $value . "\r\n";
}
}
(yield $socket->write($buffer . "\r\n"));
(yield $socket->flush());
if ($this->logger) {
$this->logger->info('{ip} "{method} {target} HTTP/{protocol}" {status} {size}', ['ip' => $request->getClientAddress(), 'method' => $request->getMethod(), 'target' => $request->getRequestTarget(), 'protocol' => $request->getProtocolVersion(), 'status' => $response->getStatusCode(), 'size' => '-']);
}
return yield from $handler->upgradeConnection($socket, $request, $response);
}
/**
* Check if the given response payload should be compressed.
*
* @param HttpRequest $request
* @param HttpResponse $response
* @return bool
*/
protected function isCompressable(HttpRequest $request, HttpResponse $response) : bool
{
if ($request->getMethod() === Http::HEAD) {
return false;
}
if ($response->getBody() instanceof DeferredBody || Http::isResponseWithoutBody($response->getStatusCode())) {
return false;
}
if ($response->hasHeader('Content-Encoding') || !$response->hasHeader('Content-Type')) {
return false;
}
try {
$media = $response->getContentType()->getMediaType();
} catch (InvalidMediaTypeException $e) {
return false;
}
if (isset($this->types[(string) $media])) {
return true;
}
foreach ($media->getSubTypes() as $sub) {
if (isset($this->subTypes[$sub])) {
return true;
}
}
return false;
}