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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Serializer\Key\HierarchicalKey; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface; |
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use BitWasp\Bitcoin\Key\Deterministic\HierarchicalKey; |
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use BitWasp\Bitcoin\Key\PrivateKeyFactory; |
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use BitWasp\Bitcoin\Key\PublicKeyFactory; |
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use BitWasp\Bitcoin\Network\NetworkInterface; |
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use BitWasp\Bitcoin\Serializer\Types; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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use BitWasp\Buffertools\Exceptions\ParserOutOfRange; |
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use BitWasp\Buffertools\Parser; |
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class ExtendedKeySerializer |
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{ |
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/** |
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* @var EcAdapterInterface |
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*/ |
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private $ecAdapter; |
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/** |
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* @var \BitWasp\Buffertools\Types\ByteString |
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*/ |
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private $bytestring4; |
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/** |
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* @var \BitWasp\Buffertools\Types\Uint8 |
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*/ |
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private $uint8; |
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/** |
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* @var \BitWasp\Buffertools\Types\Uint32 |
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*/ |
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private $uint32; |
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/** |
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* @var \BitWasp\Buffertools\Types\ByteString |
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*/ |
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private $bytestring32; |
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/** |
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* @var \BitWasp\Buffertools\Types\ByteString |
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*/ |
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private $bytestring33; |
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/** |
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* @param EcAdapterInterface $ecAdapter |
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* @throws \Exception |
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*/ |
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public function __construct(EcAdapterInterface $ecAdapter) |
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{ |
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$this->ecAdapter = $ecAdapter; |
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$this->bytestring4 = Types::bytestring(4); |
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$this->uint8 = Types::uint8(); |
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$this->uint32 = Types::uint32(); |
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$this->bytestring32 = Types::bytestring(32); |
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$this->bytestring33 = Types::bytestring(33); |
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} |
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/** |
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* @param NetworkInterface $network |
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* @param HierarchicalKey $key |
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* @return BufferInterface |
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* @throws \Exception |
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*/ |
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public function serialize(NetworkInterface $network, HierarchicalKey $key): BufferInterface |
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{ |
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list ($prefix, $data) = $key->isPrivate() |
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? [$network->getHDPrivByte(), new Buffer("\x00". $key->getPrivateKey()->getBinary(), 33)] |
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: [$network->getHDPubByte(), $key->getPublicKey()->getBuffer()]; |
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return new Buffer( |
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pack("H*", $prefix) . |
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$this->uint8->write($key->getDepth()) . |
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$this->uint32->write($key->getFingerprint()) . |
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$this->uint32->write($key->getSequence()) . |
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$this->bytestring32->write($key->getChainCode()) . |
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$this->bytestring33->write($data) |
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); |
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} |
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/** |
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* @param NetworkInterface $network |
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* @param Parser $parser |
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* @return HierarchicalKey |
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* @throws ParserOutOfRange |
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*/ |
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36 |
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public function fromParser(NetworkInterface $network, Parser $parser): HierarchicalKey |
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{ |
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try { |
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list ($bytes, $depth, $parentFingerprint, $sequence, $chainCode, $keyData) = [ |
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36 |
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$this->bytestring4->read($parser), |
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34 |
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(int) $this->uint8->read($parser), |
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(int) $this->uint32->read($parser), |
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34 |
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(int) $this->uint32->read($parser), |
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34 |
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$this->bytestring32->read($parser), |
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33 |
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$this->bytestring33->read($parser), |
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]; |
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33 |
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$bytes = $bytes->getHex(); |
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3 |
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} catch (ParserOutOfRange $e) { |
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throw new ParserOutOfRange('Failed to extract HierarchicalKey from parser'); |
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} |
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33 |
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if ($bytes !== $network->getHDPubByte() && $bytes !== $network->getHDPrivByte()) { |
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1 |
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throw new \InvalidArgumentException('HD key magic bytes do not match network magic bytes'); |
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} |
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32 |
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$key = ($network->getHDPrivByte() === $bytes) |
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? PrivateKeyFactory::fromBuffer($keyData->slice(1), true, $this->ecAdapter) |
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32 |
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: PublicKeyFactory::fromBuffer($keyData, $this->ecAdapter); |
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32 |
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return new HierarchicalKey($this->ecAdapter, $depth, $parentFingerprint, $sequence, $chainCode, $key); |
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} |
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/** |
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* @param NetworkInterface $network |
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* @param BufferInterface $buffer |
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* @return HierarchicalKey |
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* @throws ParserOutOfRange |
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*/ |
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public function parse(NetworkInterface $network, BufferInterface $buffer): HierarchicalKey |
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{ |
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return $this->fromParser($network, new Parser($buffer)); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
Loading history...
This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.