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<?php |
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namespace BitWasp\Bitcoin\Script\Interpreter; |
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use BitWasp\Bitcoin\Script\ScriptInterface; |
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use BitWasp\Bitcoin\Serializer\Transaction\TransactionSerializer; |
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use BitWasp\Bitcoin\Transaction\SignatureHash\Hasher; |
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use BitWasp\Bitcoin\Transaction\SignatureHash\SigHash; |
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use BitWasp\Bitcoin\Transaction\SignatureHash\V1Hasher; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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class BitcoinCashChecker extends Checker |
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{ |
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protected $sigHashOptionalBits = SigHash::ANYONECANPAY | SigHash::BITCOINCASH; |
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/** |
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* @param ScriptInterface $script |
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* @param int $sigHashType |
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* @param int $sigVersion |
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* @return BufferInterface |
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*/ |
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public function getSigHash(ScriptInterface $script, $sigHashType, $sigVersion) |
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{ |
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if ($sigVersion !== 0) { |
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throw new \RuntimeException("SigVersion must be 0"); |
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} |
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$cacheCheck = $sigVersion . $sigHashType . $script->getBuffer()->getBinary(); |
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if (!isset($this->sigHashCache[$cacheCheck])) { |
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if ($sigHashType & SigHash::BITCOINCASH) { |
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$hasher = new V1Hasher($this->transaction, $this->amount); |
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} else { |
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if ($this->hasherV0) { |
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$hasher = $this->hasherV0; |
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} else { |
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$hasher = $this->hasherV0 = new Hasher($this->transaction, new TransactionSerializer()); |
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} |
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} |
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$hash = $hasher->calculate($script, $this->nInput, $sigHashType); |
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$this->sigHashCache[$cacheCheck] = $hash->getBinary(); |
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} else { |
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$hash = new Buffer($this->sigHashCache[$cacheCheck], 32, $this->adapter->getMath()); |
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} |
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return $hash; |
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} |
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} |
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Bit-Wasp /
bitcoin-php
