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<?php |
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namespace BitWasp\Bitcoin\Networking\Serializer\Message; |
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use BitWasp\Bitcoin\Networking\Messages\Version; |
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use BitWasp\Bitcoin\Networking\Serializer\Structure\NetworkAddressSerializer; |
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use BitWasp\Buffertools\Parser; |
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use BitWasp\Buffertools\TemplateFactory; |
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class VersionSerializer |
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{ |
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/** |
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* @var NetworkAddressSerializer |
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*/ |
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private $netAddr; |
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/** |
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* @param NetworkAddressSerializer $netAddr |
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*/ |
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public function __construct(NetworkAddressSerializer $netAddr) |
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{ |
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$this->netAddr = $netAddr; |
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} |
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/** |
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* @return \BitWasp\Buffertools\Template |
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*/ |
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private function getTemplate() |
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{ |
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return (new TemplateFactory()) |
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->uint32le() // version |
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->uint64le() // services |
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->uint64le() // timestamp |
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->bytestring(26) // addrRecv |
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->bytestring(26) // addrFrom |
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->uint64le() // nonce |
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->varstring() // user agent |
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->uint32le() // start height |
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->uint8le() // relay |
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->getTemplate(); |
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} |
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/** |
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* @param Parser $parser |
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* @return Version |
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*/ |
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public function fromParser(Parser & $parser) |
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{ |
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list ($version, $services, $timestamp, $addrRecv, $addrFrom, $nonce, $userAgent, $startHeight, $relay) = $this->getTemplate()->parse($parser); |
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return new Version( |
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$version, |
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$services, |
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$timestamp, |
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$this->netAddr->parse($addrRecv), |
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$this->netAddr->parse($addrFrom), |
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$nonce, |
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$userAgent, |
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$startHeight, |
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(bool)$relay |
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); |
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} |
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/** |
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* @param $string |
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* @return Version |
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*/ |
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public function parse($string) |
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{ |
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return $this->fromParser(new Parser($string)); |
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} |
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/** |
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* @param Version $version |
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* @return \BitWasp\Buffertools\Buffer |
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*/ |
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public function serialize(Version $version) |
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{ |
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return $this->getTemplate()->write([ |
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$version->getVersion(), |
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$version->getServices(), |
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$version->getTimestamp(), |
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$version->getRecipientAddress()->getBuffer(), |
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$version->getSenderAddress()->getBuffer(), |
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$version->getNonce(), |
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$version->getUserAgent(), |
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$version->getStartHeight(), |
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$version->getRelay() |
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]); |
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} |
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} |
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Bit-Wasp /
bitcoin-p2p-php
