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<?php |
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namespace BitWasp\Bitcoin\Serializer\Transaction; |
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use BitWasp\Buffertools\Buffertools; |
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use BitWasp\Buffertools\Parser; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Bitcoin\Script\Script; |
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use BitWasp\Bitcoin\Transaction\TransactionInput; |
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use BitWasp\Bitcoin\Transaction\TransactionInputInterface; |
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use BitWasp\Buffertools\TemplateFactory; |
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class TransactionInputSerializer |
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{ |
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/** |
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* @var OutPointSerializer |
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*/ |
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private $outpointSerializer; |
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/** |
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* TransactionInputSerializer constructor. |
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* @param OutPointSerializer $outPointSerializer |
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*/ |
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public function __construct(OutPointSerializer $outPointSerializer) |
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{ |
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$this->outpointSerializer = $outPointSerializer; |
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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 getInputTemplate() |
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{ |
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return (new TemplateFactory()) |
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->varstring() |
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->uint32le() |
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->getTemplate(); |
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} |
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/** |
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* @param TransactionInputInterface $input |
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* @return Buffer |
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*/ |
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public function serialize(TransactionInputInterface $input) |
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{ |
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return Buffertools::concat( |
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$this->outpointSerializer->serialize($input->getOutPoint()), |
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$this->getInputTemplate()->write([ |
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$input->getScript()->getBuffer(), |
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$input->getSequence() |
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]) |
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); |
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} |
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/** |
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* @param Parser $parser |
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* @return TransactionInput |
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* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange |
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*/ |
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public function fromParser(Parser $parser) |
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{ |
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$outpoint = $this->outpointSerializer->fromParser($parser); |
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/** |
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* @var Buffer $scriptBuf |
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* @var int|string $sequence |
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*/ |
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list ($scriptBuf, $sequence) = $this->getInputTemplate()->parse($parser); |
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return new TransactionInput( |
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$outpoint, |
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new Script($scriptBuf), |
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$sequence |
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); |
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} |
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/** |
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* @param $string |
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* @return TransactionInput |
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* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange |
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*/ |
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public function parse($string) |
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{ |
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$parser = new Parser($string); |
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return $this->fromParser($parser); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
