87 lines
3.3 KiB
PHP
87 lines
3.3 KiB
PHP
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<?php
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use GuzzleHttp\Psr7\Message;
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use GuzzleHttp\Psr7\Response;
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use Ratchet\RFC6455\Handshake\PermessageDeflateOptions;
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use Ratchet\RFC6455\Messaging\MessageBuffer;
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use Ratchet\RFC6455\Messaging\MessageInterface;
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use Ratchet\RFC6455\Messaging\FrameInterface;
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use Ratchet\RFC6455\Messaging\Frame;
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require_once __DIR__ . "/../bootstrap.php";
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$loop = \React\EventLoop\Factory::create();
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$socket = new \React\Socket\Server('0.0.0.0:9001', $loop);
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$closeFrameChecker = new \Ratchet\RFC6455\Messaging\CloseFrameChecker;
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$negotiator = new \Ratchet\RFC6455\Handshake\ServerNegotiator(new \Ratchet\RFC6455\Handshake\RequestVerifier, PermessageDeflateOptions::permessageDeflateSupported());
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$uException = new \UnderflowException;
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$socket->on('connection', function (React\Socket\ConnectionInterface $connection) use ($negotiator, $closeFrameChecker, $uException, $socket) {
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$headerComplete = false;
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$buffer = '';
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$parser = null;
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$connection->on('data', function ($data) use ($connection, &$parser, &$headerComplete, &$buffer, $negotiator, $closeFrameChecker, $uException, $socket) {
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if ($headerComplete) {
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$parser->onData($data);
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return;
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}
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$buffer .= $data;
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$parts = explode("\r\n\r\n", $buffer);
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if (count($parts) < 2) {
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return;
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}
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$headerComplete = true;
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$psrRequest = Message::parseRequest($parts[0] . "\r\n\r\n");
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$negotiatorResponse = $negotiator->handshake($psrRequest);
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$negotiatorResponse = $negotiatorResponse->withAddedHeader("Content-Length", "0");
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if ($negotiatorResponse->getStatusCode() !== 101 && $psrRequest->getUri()->getPath() === '/shutdown') {
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$connection->end(Message::toString(new Response(200, [], 'Shutting down echo server.' . PHP_EOL)));
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$socket->close();
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return;
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};
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$connection->write(Message::toString($negotiatorResponse));
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if ($negotiatorResponse->getStatusCode() !== 101) {
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$connection->end();
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return;
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}
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// there is no need to look through the client requests
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// we support any valid permessage deflate
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$deflateOptions = PermessageDeflateOptions::fromRequestOrResponse($psrRequest)[0];
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$parser = new \Ratchet\RFC6455\Messaging\MessageBuffer($closeFrameChecker,
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function (MessageInterface $message, MessageBuffer $messageBuffer) {
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$messageBuffer->sendMessage($message->getPayload(), true, $message->isBinary());
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}, function (FrameInterface $frame) use ($connection, &$parser) {
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switch ($frame->getOpCode()) {
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case Frame::OP_CLOSE:
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$connection->end($frame->getContents());
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break;
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case Frame::OP_PING:
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$connection->write($parser->newFrame($frame->getPayload(), true, Frame::OP_PONG)->getContents());
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break;
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}
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}, true, function () use ($uException) {
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return $uException;
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},
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null,
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null,
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[$connection, 'write'],
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$deflateOptions);
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array_shift($parts);
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$parser->onData(implode("\r\n\r\n", $parts));
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});
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});
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$loop->run();
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