/**
* @param Parser $parser
* @return NetworkMessage
* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange
* @throws \Exception
*/
public function fromParser(Parser &$parser)
{
list($netBytes, $command, $payloadSize, $checksum) = $this->getHeaderTemplate()->parse($parser);
/** @var Buffer $netBytes */
/** @var Buffer $command */
/** @var int|string $payloadSize */
/** @var Buffer $checksum */
if ($netBytes->getHex() !== $this->network->getNetMagicBytes()) {
throw new \RuntimeException('Invalid magic bytes for network');
}
$buffer = $payloadSize > 0 ? $parser->readBytes($payloadSize) : new Buffer();
// Compare payload checksum against header value
if (Hash::sha256d($buffer)->slice(0, 4)->getBinary() !== $checksum->getBinary()) {
throw new \RuntimeException('Invalid packet checksum');
}
$cmd = trim($command->getBinary());
switch ($cmd) {
case 'version':
$payload = $this->versionSerializer->parse($buffer);
break;
case 'verack':
$payload = new VerAck();
break;
case 'addr':
$payload = $this->addrSerializer->parse($buffer);
break;
case 'inv':
$payload = $this->invSerializer->parse($buffer);
break;
case 'getdata':
$payload = $this->getDataSerializer->parse($buffer);
break;
case 'notfound':
$payload = $this->notFoundSerializer->parse($buffer);
break;
case 'getblocks':
$payload = $this->getBlocksSerializer->parse($buffer);
break;
case 'getheaders':
$payload = $this->getHeadersSerializer->parse($buffer);
break;
case 'tx':
$payload = new Tx($this->txSerializer->parse($buffer));
break;
case 'block':
$payload = new Block($this->blockSerializer->parse($buffer));
break;
case 'headers':
$payload = $this->headersSerializer->parse($buffer);
break;
case 'getaddr':
$payload = new GetAddr();
break;
case 'mempool':
$payload = new MemPool();
break;
case 'filterload':
$payload = $this->filterLoadSerializer->parse($buffer);
break;
case 'filteradd':
$payload = $this->filterAddSerializer->parse($buffer);
break;
case 'filterclear':
$payload = new FilterClear();
break;
case 'merkleblock':
$payload = $this->merkleBlockSerializer->parse($buffer);
break;
case 'ping':
$payload = $this->pingSerializer->parse($buffer);
break;
case 'pong':
$payload = $this->pongSerializer->parse($buffer);
break;
case 'reject':
$payload = $this->rejectSerializer->parse($buffer);
break;
case 'alert':
$payload = $this->alertSerializer->parse($buffer);
break;
default:
throw new \RuntimeException('Invalid command');
}
return new NetworkMessage($this->network, $payload);
}
/**
* @return \BitWasp\Buffertools\Template
*/
private function getTxsTemplate()
{
return (new TemplateFactory())->vector(function (Parser &$parser) {
return $this->txSerializer->fromParser($parser);
})->getTemplate();
}
/**
* @param $string
* @return Transaction
*/
public static function fromHex($string)
{
$serializer = new TransactionSerializer();
$hex = $serializer->parse($string);
return $hex;
}
/**
* @param Parser $parser
* @return NetworkMessage
* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange
* @throws \Exception
*/
public function fromParser(Parser $parser)
{
list($netBytes, $command, $payloadSize, $checksum) = $this->getHeaderTemplate()->parse($parser);
/** @var Buffer $netBytes */
/** @var Buffer $command */
/** @var int|string $payloadSize */
/** @var Buffer $checksum */
if ($netBytes->getHex() !== $this->network->getNetMagicBytes()) {
throw new \RuntimeException('Invalid magic bytes for network');
}
$buffer = $payloadSize > 0 ? $parser->readBytes($payloadSize) : new Buffer('', 0, $this->math);
// Compare payload checksum against header value
if (Hash::sha256d($buffer)->slice(0, 4)->getBinary() !== $checksum->getBinary()) {
throw new \RuntimeException('Invalid packet checksum');
}
$cmd = trim($command->getBinary());
switch ($cmd) {
case Message::VERSION:
$payload = $this->versionSerializer->parse($buffer);
break;
case Message::VERACK:
$payload = new VerAck();
break;
case Message::SENDHEADERS:
$payload = new SendHeaders();
break;
case Message::ADDR:
$payload = $this->addrSerializer->parse($buffer);
break;
case Message::INV:
$payload = $this->invSerializer->parse($buffer);
break;
case Message::GETDATA:
$payload = $this->getDataSerializer->parse($buffer);
break;
case Message::NOTFOUND:
$payload = $this->notFoundSerializer->parse($buffer);
break;
case Message::GETBLOCKS:
$payload = $this->getBlocksSerializer->parse($buffer);
break;
case Message::GETHEADERS:
$payload = $this->getHeadersSerializer->parse($buffer);
break;
case Message::TX:
$payload = new Tx($this->txSerializer->parse($buffer));
break;
case Message::BLOCK:
$payload = new Block($this->blockSerializer->parse($buffer));
break;
case Message::HEADERS:
$payload = $this->headersSerializer->parse($buffer);
break;
case Message::GETADDR:
$payload = new GetAddr();
break;
case Message::MEMPOOL:
$payload = new MemPool();
break;
case Message::FEEFILTER:
$payload = $this->feeFilterSerializer->parse($buffer);
break;
case Message::FILTERLOAD:
$payload = $this->filterLoadSerializer->parse($buffer);
break;
case Message::FILTERADD:
$payload = $this->filterAddSerializer->parse($buffer);
break;
case Message::FILTERCLEAR:
$payload = new FilterClear();
break;
case Message::MERKLEBLOCK:
$payload = $this->merkleBlockSerializer->parse($buffer);
break;
case Message::PING:
$payload = $this->pingSerializer->parse($buffer);
break;
case Message::PONG:
$payload = $this->pongSerializer->parse($buffer);
break;
case Message::REJECT:
$payload = $this->rejectSerializer->parse($buffer);
break;
case Message::ALERT:
$payload = $this->alertSerializer->parse($buffer);
break;
default:
throw new \RuntimeException('Invalid command');
}
return new NetworkMessage($this->network, $payload);
}
/**
* @return Buffer
*/
public function getBuffer()
{
$serializer = new TransactionSerializer();
$hex = $serializer->serialize($this);
return $hex;
}