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<?php |
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namespace BitWasp\Stratum; |
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use BitWasp\Stratum\Api\ElectrumClient; |
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use BitWasp\Stratum\Api\MiningClient; |
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use BitWasp\Stratum\Notification\AddressNotification; |
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use BitWasp\Stratum\Notification\HeadersNotification; |
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use BitWasp\Stratum\Notification\MiningNotification; |
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use BitWasp\Stratum\Notification\NotificationInterface; |
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use BitWasp\Stratum\Notification\NumBlocksNotification; |
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use BitWasp\Stratum\Notification\SetDifficultyNotification; |
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use BitWasp\Stratum\Request\Request; |
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use BitWasp\Stratum\Request\RequestFactory; |
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use Evenement\EventEmitter; |
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use React\Promise\Deferred; |
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use React\Stream\Stream; |
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class Connection extends EventEmitter |
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{ |
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/** |
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* @var Stream |
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*/ |
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private $stream; |
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/** |
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* @var RequestFactory |
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*/ |
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private $factory; |
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/** |
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* @var Deferred[] |
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*/ |
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private $deferred = []; |
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/** |
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* @var string |
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*/ |
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private $streamBuffer = ''; |
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/** |
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* Connection constructor. |
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* @param Stream $stream |
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* @param RequestFactory $requestFactory |
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*/ |
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public function __construct(Stream $stream, RequestFactory $requestFactory) |
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{ |
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$this->factory = $requestFactory; |
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$this->stream = $stream; |
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$this->stream->on('data', [$this, 'onData']); |
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} |
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public function close() |
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{ |
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return $this->stream->close(); |
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} |
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/** |
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* @param string $method |
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* @param array $params |
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* @return \React\Promise\Promise|\React\Promise\PromiseInterface |
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*/ |
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public function request($method, array $params = []) |
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{ |
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$request = $this->factory->create($method, $params); |
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return $this->send($request); |
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} |
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/** |
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* @param NotificationInterface $notification |
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* @return \React\Promise\Promise|\React\Promise\PromiseInterface |
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*/ |
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public function notify(NotificationInterface $notification) |
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{ |
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return $this->stream->write($notification->toRequest()->write()); |
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} |
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/** |
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* @param Request $request |
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* @return \React\Promise\Promise|\React\Promise\PromiseInterface |
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*/ |
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public function send(Request $request) |
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{ |
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$result = new Deferred(); |
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$this->deferred[$request->getId()] = $result; |
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$this->stream->write($request->write()); |
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return $result->promise(); |
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} |
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/** |
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* @param string $data |
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*/ |
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public function onData($data) |
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{ |
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$buffer = $this->streamBuffer . $data; |
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while (($nextPos = strpos($buffer, "\n"))) { |
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$msg = substr($buffer, 0, $nextPos); |
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$buffer = substr($buffer, $nextPos); |
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if (substr($buffer, -1) == "\n") { |
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$buffer = substr($buffer, 1); |
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} |
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$this->onMessage($msg); |
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} |
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if (!$buffer) { |
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$this->streamBuffer = ''; |
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} else { |
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$this->streamBuffer = $buffer; |
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} |
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} |
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/** |
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* @param string $data |
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* @throws Exceptions\ApiError |
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* @throws \Exception |
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*/ |
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public function onMessage($data) |
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{ |
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$response = $this->factory->response($data); |
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if (isset($this->deferred[$response->getId()])) { |
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$this->deferred[$response->getId()]->resolve($response); |
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} else { |
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$this->emit('message', [$response]); |
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if ($response instanceof Request) { |
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$params = $response->getParams(); |
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switch ($response->getMethod()) { |
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case ElectrumClient::HEADERS_SUBSCRIBE: |
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if (!isset($params[0])) { |
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throw new \RuntimeException('Headers notification missing body'); |
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} |
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$header = $params[0]; |
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if (count($header) !== 8) { |
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throw new \RuntimeException('Headers notification missing parameter'); |
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} |
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$this->emit(ElectrumClient::HEADERS_SUBSCRIBE, [new HeadersNotification($header[0], $header[1], $header[2], $header[3], $header[4], $header[5], $header[6], $header[7])]); |
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break; |
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case ElectrumClient::ADDRESS_SUBSCRIBE: |
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if (!isset($params[0]) || !isset($params[1])) { |
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throw new \RuntimeException('Address notification missing address/txid'); |
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} |
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$this->emit(ElectrumClient::ADDRESS_SUBSCRIBE, [new AddressNotification($params[0], $params[1])]); |
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break; |
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case ElectrumClient::NUMBLOCKS_SUBSCRIBE: |
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if (!isset($params[0])) { |
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throw new \RuntimeException('Missing notification parameter: height'); |
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} |
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$this->emit(ElectrumClient::NUMBLOCKS_SUBSCRIBE, [new NumBlocksNotification($params[0])]); |
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break; |
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case MiningClient::SET_DIFFICULTY: |
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if (count($params) !== 1) { |
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throw new \RuntimeException('Missing mining difficulty notification parameter'); |
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} |
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$this->emit(MiningClient::SET_DIFFICULTY, [new SetDifficultyNotification($params[0])]); |
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break; |
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case MiningClient::NOTIFY: |
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if (count($params) !== 9) { |
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throw new \RuntimeException('Missing mining notification parameter'); |
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} |
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$this->emit(MiningClient::NOTIFY, [new MiningNotification($params[0], $params[1], $params[2], $params[3], $params[4], $params[5], $params[6], $params[7], $params[8])]); |
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break; |
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} |
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} |
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} |
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} |
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} |
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Bit-Wasp /
stratum-php
