/**
* @param TransactionOutputInterface $txOutput
* @return OutputBuf
*/
private function outputToBuf(TransactionOutputInterface $txOutput)
{
$output = new OutputBuf();
$output->setScript($txOutput->getScript()->getBuffer()->getBinary());
$output->setAmount($txOutput->getValue());
return $output;
}
/**
* @return SigValues
*/
public function serializeSignatures()
{
static $emptyScript = null;
static $emptyWitness = null;
if (is_null($emptyScript) || is_null($emptyWitness)) {
$emptyScript = new Script();
$emptyWitness = new ScriptWitness([]);
}
/** @var BufferInterface[] $return */
$outputType = (new OutputClassifier($this->txOut->getScript()))->classify();
/** @var SigValues $answer */
$answer = new SigValues($emptyScript, $emptyWitness);
$serialized = $this->serializeSimpleSig($outputType, $answer);
$p2sh = false;
if (!$serialized && $outputType === OutputClassifier::PAYTOSCRIPTHASH) {
$p2sh = true;
$outputType = (new OutputClassifier($this->redeemScript))->classify();
$serialized = $this->serializeSimpleSig($outputType, $answer);
}
if (!$serialized && $outputType === OutputClassifier::WITNESS_V0_KEYHASH) {
$answer = new SigValues($emptyScript, new ScriptWitness([$this->signatures[0]->getBuffer(), $this->publicKeys[0]->getBuffer()]));
} else {
if (!$serialized && $outputType === OutputClassifier::WITNESS_V0_SCRIPTHASH) {
$outputType = (new OutputClassifier($this->witnessScript))->classify();
$serialized = $this->serializeSimpleSig($outputType, $answer);
if ($serialized) {
$data = [];
foreach ($answer->getScriptSig()->getScriptParser()->decode() as $o) {
$data[] = $o->getData();
}
$data[] = $this->witnessScript->getBuffer();
$answer = new SigValues($emptyScript, new ScriptWitness($data));
}
}
}
if ($p2sh) {
$answer = new SigValues(ScriptFactory::create($answer->getScriptSig()->getBuffer())->push($this->redeemScript->getBuffer())->getScript(), $answer->getScriptWitness());
}
return $answer;
}
/**
* @param TransactionOutputInterface $output
* @return BufferInterface
*/
public function serialize(TransactionOutputInterface $output)
{
return $this->getTemplate()->write([$output->getValue(), $output->getScript()->getBuffer()]);
}
/**
* @param ConsensusInterface $consensus
* @param int $nInput
* @param TransactionOutputInterface $output
* @return bool
*/
public function checkSignature(ConsensusInterface $consensus, $nInput, TransactionOutputInterface $output)
{
$witnesses = $this->transaction->getWitnesses();
$witness = isset($witnesses[$nInput]) ? $witnesses[$nInput] : null;
return $consensus->verify($this->transaction, $output->getScript(), $nInput, $output->getValue(), $witness);
}
/**
* @param TransactionOutputInterface $output
* @return array
*/
public function convertTxoutToArray(TransactionOutputInterface $output)
{
return ['value' => $output->getValue(), 'scriptPubKey' => $output->getScript()->getHex()];
}
/**
* @param array $array
* @return $this
*/
private function replace(array $array)
{
$this->output = new TransactionOutput(array_key_exists('value', $array) ? $array['value'] : $this->output->getValue(), array_key_exists('script', $array) ? $array['script'] : $this->output->getScript());
return $this;
}
