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<?php |
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namespace BitWasp\Bitcoin\Address; |
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use BitWasp\Bitcoin\Base58; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Key\KeyInterface; |
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use BitWasp\Bitcoin\Network\NetworkInterface; |
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use BitWasp\Bitcoin\Script\Classifier\OutputClassifier; |
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use BitWasp\Bitcoin\Script\ScriptInterface; |
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use BitWasp\Bitcoin\Key\PublicKeyFactory; |
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use BitWasp\Buffertools\Buffer; |
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class AddressFactory |
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{ |
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/** |
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* Returns a pay-to-pubkey-hash address for the given public key |
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* |
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* @param KeyInterface $key |
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* @return PayToPubKeyHashAddress |
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*/ |
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public static function fromKey(KeyInterface $key) |
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{ |
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return new PayToPubKeyHashAddress($key->getPubKeyHash()); |
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} |
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/** |
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* Takes the $p2shScript and generates the scriptHash address. |
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* |
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* @param ScriptInterface $p2shScript |
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* @return ScriptHashAddress |
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*/ |
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public static function fromScript(ScriptInterface $p2shScript) |
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{ |
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return new ScriptHashAddress($p2shScript->getScriptHash()); |
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} |
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/** |
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* @param ScriptInterface $outputScript |
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* @return PayToPubKeyHashAddress|ScriptHashAddress |
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*/ |
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public static function fromOutputScript(ScriptInterface $outputScript) |
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{ |
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$classifier = new OutputClassifier($outputScript); |
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$type = $classifier->classify(); |
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$parsed = $outputScript->getScriptParser()->decode(); |
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if ($type === OutputClassifier::PAYTOPUBKEYHASH) { |
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/** @var \BitWasp\Buffertools\BufferInterface $hash */ |
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$hash = $parsed[2]->getData(); |
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return new PayToPubKeyHashAddress($hash); |
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} else if ($type === OutputClassifier::PAYTOSCRIPTHASH) { |
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/** @var \BitWasp\Buffertools\BufferInterface $hash */ |
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$hash = $parsed[1]->getData(); |
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return new ScriptHashAddress($hash); |
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} |
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throw new \RuntimeException('Script type is not associated with an address'); |
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} |
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/** |
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* @param string $address |
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* @param NetworkInterface $network |
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* @return AddressInterface |
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* @throws \BitWasp\Bitcoin\Exceptions\Base58ChecksumFailure |
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*/ |
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public static function fromString($address, NetworkInterface $network = null) |
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{ |
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$network = $network ?: Bitcoin::getNetwork(); |
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$data = Base58::decodeCheck($address); |
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$prefixByte = $data->slice(0, 1)->getHex(); |
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if ($prefixByte === $network->getP2shByte()) { |
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return new ScriptHashAddress($data->slice(1)); |
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} else if ($prefixByte === $network->getAddressByte()) { |
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return new PayToPubKeyHashAddress($data->slice(1)); |
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} else { |
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throw new \InvalidArgumentException("Invalid prefix [{$prefixByte}]"); |
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} |
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} |
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/** |
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* @param string $address |
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* @param NetworkInterface $network |
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* @return AddressInterface |
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* @throws \BitWasp\Bitcoin\Exceptions\Base58ChecksumFailure |
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*/ |
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public static function isValidAddress($address, NetworkInterface $network = null) |
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{ |
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try { |
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self::fromString($address, $network); |
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$is_valid = true; |
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} catch (\Exception $e) { |
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$is_valid = false; |
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} |
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return $is_valid; |
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} |
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/** |
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* @param ScriptInterface $script |
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* @param NetworkInterface $network |
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* @return String |
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* @throws \RuntimeException |
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*/ |
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public static function getAssociatedAddress(ScriptInterface $script, NetworkInterface $network = null) |
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{ |
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$classifier = new OutputClassifier($script); |
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$network = $network ?: Bitcoin::getNetwork(); |
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try { |
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if ($classifier->isPayToPublicKey()) { |
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$address = PublicKeyFactory::fromHex($script->getScriptParser()->decode()[0]->getData())->getAddress(); |
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} else { |
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$address = self::fromOutputScript($script); |
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} |
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return Base58::encodeCheck(Buffer::hex($network->getAddressByte() . $address->getHash(), 21)); |
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} catch (\Exception $e) { |
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throw new \RuntimeException('No address associated with this script type'); |
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} |
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} |
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} |
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Bit-Wasp /
bitcoin-php
