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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Block; |
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use BitWasp\Bitcoin\Crypto\Hash; |
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use BitWasp\Bitcoin\Exceptions\InvalidHashLengthException; |
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use BitWasp\Bitcoin\Serializable; |
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use BitWasp\Bitcoin\Serializer\Block\BlockHeaderSerializer; |
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use BitWasp\Buffertools\BufferInterface; |
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class BlockHeader extends Serializable implements BlockHeaderInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private $version; |
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/** |
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* @var BufferInterface |
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*/ |
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private $prevBlock; |
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/** |
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* @var BufferInterface |
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*/ |
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private $merkleRoot; |
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/** |
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* @var int |
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*/ |
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private $timestamp; |
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/** |
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* @var int |
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*/ |
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private $bits; |
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/** |
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* @var int |
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*/ |
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private $nonce; |
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const BIP9_PREFIX = 1 << 29; |
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/** |
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* @param int $version |
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* @param BufferInterface $prevBlock |
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* @param BufferInterface $merkleRoot |
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* @param int $timestamp |
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* @param int $bits |
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* @param int $nonce |
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*/ |
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public function __construct(int $version, BufferInterface $prevBlock, BufferInterface $merkleRoot, int $timestamp, int $bits, int $nonce) |
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{ |
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if ($prevBlock->getSize() !== 32) { |
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1 |
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throw new InvalidHashLengthException('BlockHeader prevBlock must be a 32-byte Buffer'); |
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} |
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if ($merkleRoot->getSize() !== 32) { |
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throw new InvalidHashLengthException('BlockHeader merkleRoot must be a 32-byte Buffer'); |
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} |
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$this->version = $version; |
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$this->prevBlock = $prevBlock; |
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$this->merkleRoot = $merkleRoot; |
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$this->timestamp = $timestamp; |
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$this->bits = $bits; |
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$this->nonce = $nonce; |
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} |
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/** |
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* @return BufferInterface |
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*/ |
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191 |
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public function getHash(): BufferInterface |
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{ |
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return Hash::sha256d($this->getBuffer())->flip(); |
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} |
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/** |
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* Get the version for this block |
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* |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getVersion() |
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*/ |
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201 |
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public function getVersion(): int |
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{ |
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return $this->version; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasBip9Prefix(): bool |
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{ |
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return ($this->version & self::BIP9_PREFIX) != 0; |
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} |
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/** |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getPrevBlock() |
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*/ |
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201 |
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public function getPrevBlock(): BufferInterface |
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{ |
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return $this->prevBlock; |
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} |
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/** |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getMerkleRoot() |
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*/ |
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public function getMerkleRoot(): BufferInterface |
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{ |
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return $this->merkleRoot; |
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} |
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/** |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getBits() |
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*/ |
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public function getBits(): int |
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{ |
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return $this->bits; |
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} |
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/** |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getNonce() |
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*/ |
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201 |
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public function getNonce(): int |
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{ |
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return $this->nonce; |
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} |
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/** |
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* Get the timestamp for this block |
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* |
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* {@inheritdoc} |
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* @see \BitWasp\Bitcoin\Block\BlockHeaderInterface::getTimestamp() |
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*/ |
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201 |
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public function getTimestamp(): int |
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{ |
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return $this->timestamp; |
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} |
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/** |
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* @param BlockHeaderInterface $other |
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* @return bool |
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*/ |
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1 |
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public function equals(BlockHeaderInterface $other): bool |
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{ |
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return $this->version === $other->getVersion() |
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&& $this->prevBlock->equals($other->getPrevBlock()) |
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&& $this->merkleRoot->equals($other->getMerkleRoot()) |
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&& $this->timestamp === $other->getTimestamp() |
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&& $this->bits === $other->getBits() |
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&& $this->nonce === $other->getNonce(); |
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} |
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/** |
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* {@inheritdoc} |
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* @see \BitWasp\Buffertools\SerializableInterface::getBuffer() |
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*/ |
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public function getBuffer(): BufferInterface |
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{ |
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return (new BlockHeaderSerializer())->serialize($this); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
