Files
kiri-core/Server/Abstracts/Websocket.php
T
2021-08-12 16:13:46 +08:00

86 lines
2.3 KiB
PHP

<?php
namespace Server\Abstracts;
use Exception;
use Kiri\Abstracts\Config;
use Kiri\Exception\ConfigException;
use Kiri\Exception\NotFindClassException;
use Kiri\Kiri;
use ReflectionException;
use Server\Constrict\ResponseEmitter;
use Server\Constrict\WebSocketEmitter;
use Server\ExceptionHandlerDispatcher;
use Server\ExceptionHandlerInterface;
use Server\SInterface\OnClose;
use Server\SInterface\OnHandshake;
use Server\SInterface\OnMessage;
use Swoole\Http\Request;
use Swoole\Http\Response;
/**
*
*/
abstract class Websocket extends Server implements OnHandshake, OnMessage, OnClose
{
use EventDispatchHelper;
use ResponseHelper;
/**
* @var ExceptionHandlerInterface
*/
public ExceptionHandlerInterface $exceptionHandler;
/**
* @throws ReflectionException
* @throws ConfigException
* @throws NotFindClassException
*/
public function init()
{
$exceptionHandler = Config::get('exception.websocket', ExceptionHandlerDispatcher::class);
if (!in_array(ExceptionHandlerInterface::class, class_implements($exceptionHandler))) {
$exceptionHandler = ExceptionHandlerDispatcher::class;
}
$this->exceptionHandler = Kiri::getDi()->get($exceptionHandler);
$this->responseEmitter = Kiri::getDi()->get(WebSocketEmitter::class);
}
/**
* @param Request $request
* @param Response $response
* @throws Exception
*/
public function onHandshake(Request $request, Response $response): void
{
// TODO: Implement OnHandshake() method.
$secWebSocketKey = $request->header['sec-websocket-key'];
$patten = '#^[+/0-9A-Za-z]{21}[AQgw]==$#';
if (0 === preg_match($patten, $secWebSocketKey) || 16 !== strlen(base64_decode($secWebSocketKey))) {
throw new Exception('protocol error.', 500);
}
$key = base64_encode(sha1($request->header['sec-websocket-key'] . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11', TRUE));
$headers = [
'Upgrade' => 'websocket',
'Connection' => 'Upgrade',
'Sec-websocket-Accept' => $key,
'Sec-websocket-Version' => '13',
];
if (isset($request->header['sec-websocket-protocol'])) {
$explode = explode(',',$request->header['sec-websocket-protocol']);
$headers['Sec-websocket-Protocol'] = $explode[0];
}
foreach ($headers as $key => $val) {
$response->setHeader($key, $val);
}
}
}