/**
* @param ClientInterface $client
* @param Request $request
* @param Response $response
* @return bool
*/
public function setupUpgrades(ClientInterface $client, Request $request, Response $response)
{
if (($upgrade = $request->getHeader('UPGRADE')) === null) {
return false;
}
$sm = $this->getServiceManager();
/** @var ProtocolUpgrader $protocolUpgrader */
if (($protocolUpgrader = $sm->get('ProtocolUpgrader', [$sm], true)) === null) {
return false;
}
$upgrade = strtolower($upgrade);
try {
$protocolUpgrader->upgrade($upgrade, $this->getCallbackHandler(), $client, $request, $response);
} catch (Exception\UnsupportedUpgradeException $e) {
$this->getLogger()->info($e->getMessage());
$response->setReturnCode(505, 'HTTP Version Not Supported')->setBody('Expectation Failed')->setHeader('Connection', 'close')->send($client);
} catch (Exception\BadRequestException $e) {
$this->getLogger()->info($e->getMessage());
$response->setReturnCode(400, 'Bad Request')->setBody('Bad Request')->setHeader('Connection', 'close')->send($client);
}
$this->getLogger()->debug('Upgrades set up.');
return true;
}
/**
* Process WebSocket handshake
*
* @param ClientInterface $client
* @param Http\Request $request
* @param Http\Response $response
* @return ProtocolUpgradeAwareInterface
* @throws \Gplanchat\Io\Net\Protocol\Http\Exception\BadRequestException
*/
public function upgrade(ClientInterface $client, Http\Request $request, Http\Response $response)
{
if (($connectionHeader = $request->getHeader('CONNECTION')) === null) {
throw new Exception\BadRequestException('Header Connection required.');
}
$connectionParams = preg_split('#\\s*,\\s*#', strtolower($request->getHeader('CONNECTION')), PREG_SPLIT_NO_EMPTY);
foreach ($connectionParams as &$param) {
$param = strtolower($param);
}
unset($param);
if (!in_array('upgrade', $connectionParams)) {
throw new Exception\BadRequestException('Header Connection required or invalid value provided.');
}
if (($securityKey = $request->getHeader('SEC_WEBSOCKET_KEY')) === null || !preg_match('#[A-Za-z0-9+/]{22}==#', $securityKey, $m)) {
throw new Exception\BadRequestException('Header Sec-WebSocket-Key required or invalid value provided.');
}
// $client->getDataStore('WebSocket')->set('securityKey', $securityKey);
if (($protocolVersion = $request->getHeader('SEC_WEBSOCKET_VERSION')) === null || !in_array($protocolVersion, static::$supportedVersions)) {
$response->setReturnCode(426, 'Upgrade Required')->setBody('Upgrade Required')->setHeader('Connection', 'close')->setHeader('Sec-WebSocket-Version', implode(', ', static::$supportedVersions))->send($client);
return $this;
}
// $client->getDataStore('WebSocket')->set('protocolVersion', $protocolVersion);
if (($protocol = $request->getHeader('SEC_WEBSOCKET_PROTOCOL')) !== null) {
$protocolList = preg_split('#\\s*,\\s*#', strtolower($protocol), PREG_SPLIT_NO_EMPTY);
// $client->getDataStore('WebSocket')->set('protocols', $protocolList);
$this->emit(new Event('registerProtocols'), [$protocolList]);
}
if (($extension = $request->getHeader('SEC_WEBSOCKET_EXTENSIONS')) !== null) {
$extensionList = preg_split('#\\s*,\\s*#', strtolower($extension), PREG_SPLIT_NO_EMPTY);
// $client->getDataStore('WebSocket')->set('extensions', $extensionList);
$this->emit(new Event('registerExtensions'), [$extensionList]);
}
$hashHandler = hash_init('sha1');
hash_update($hashHandler, $securityKey);
hash_update($hashHandler, static::SECURITY_GUID);
$hash = base64_encode(hash_final($hashHandler, true));
// $this->getLogger()->info('Switching to WebSocket');
$response->setReturnCode(101, 'Switching Protocols')->setHeader('Upgrade', 'websocket')->setHeader('Connection', 'Upgrade')->setHeader('Sec-WebSocket-Accept', $hash)->send($client);
return $this;
}
