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<?php |
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/** |
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* This file is a part of Woketo package. |
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* |
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* (c) Nekland <[email protected]> |
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* |
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* For the full license, take a look to the LICENSE file |
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* on the root directory of this project |
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*/ |
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namespace Nekland\Woketo\Rfc6455\FrameHandler; |
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use Nekland\Woketo\Rfc6455\Frame; |
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use Nekland\Woketo\Rfc6455\Message; |
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use Nekland\Woketo\Rfc6455\MessageProcessor; |
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use Nekland\Woketo\Utils\BitManipulation; |
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use React\Stream\Stream; |
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class CloseFrameHandler implements Rfc6455FrameHandlerInterface |
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{ |
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public function supports(Message $message) |
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{ |
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return $message->getFirstFrame()->getOpcode() === Frame::OP_CLOSE; |
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} |
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public function process(Message $message, MessageProcessor $messageProcessor, Stream $socket) |
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{ |
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$code = Frame::CLOSE_NORMAL; |
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$frame = $message->getFirstFrame(); |
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$payload = $frame->getPayload(); |
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if ($frame->getRsv1() || $frame->getRsv2() || $frame->getRsv3()) { |
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$code = Frame::CLOSE_PROTOCOL_ERROR; |
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} |
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if (BitManipulation::frameSize($payload) > 1) { |
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$errorCode = BitManipulation::bytesFromTo($payload, 0, 1); |
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// https://tools.ietf.org/html/rfc6455#section-7.4 |
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if ( |
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( |
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!\in_array($errorCode, [ |
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Frame::CLOSE_NORMAL, Frame::CLOSE_GOING_AWAY, Frame::CLOSE_PROTOCOL_ERROR, Frame::CLOSE_GOING_AWAY, |
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Frame::CLOSE_WRONG_DATA, Frame::CLOSE_INCOHERENT_DATA, Frame::CLOSE_TOO_BIG_TO_PROCESS, |
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Frame::CLOSE_POLICY_VIOLATION, Frame::CLOSE_MISSING_EXTENSION, Frame::CLOSE_UNEXPECTING_CONDITION |
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]) |
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&& $errorCode < 3000 && $errorCode > 900 |
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) |
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|| $errorCode > 4999 |
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|| $errorCode < 1000 |
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) { |
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$code = Frame::CLOSE_PROTOCOL_ERROR; |
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} |
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} |
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$messageProcessor->write($messageProcessor->getFrameFactory()->createCloseFrame($code), $socket); |
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$socket->end(); |
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} |
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} |
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Nekland /
Woketo
