/**
* @param InputInterface $input
* @param OutputInterface $output
* @return int
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$file = getenv('HOME') . '/.bitcoinphp/bitcoin.ini';
$config = new IniConfigProvider();
try {
$config->loadFile($file);
} catch (\Exception $e) {
throw new \RuntimeException('Failed to load config file');
}
$db = new Db($config);
$db->reset();
}
/**
* @param ChainState $state
* @param BlockInterface $block
* @param Headers $headers
* @param UtxoIdx $utxoIdx
* @return BlockIndex
*/
public function accept(ChainState $state, BlockInterface $block, Headers $headers, UtxoIdx $utxoIdx)
{
$bestBlock = $state->getLastBlock();
if ($bestBlock->getHash() !== $block->getHeader()->getPrevBlock()) {
throw new \RuntimeException('Blocks:accept() Block does not extend this chain!');
}
$index = $headers->accept($state, $block->getHeader());
$this->blockCheck->check($block)->checkContextual($block, $bestBlock);
//$view = $utxoIdx->fetchView($state, $block);
$view = $this->db->fetchUtxoView($block);
$flagP2sh = $this->consensus->scriptVerifyPayToScriptHash($bestBlock->getHeader()->getTimestamp());
$flags = new Flags($flagP2sh ? InterpreterInterface::VERIFY_P2SH : InterpreterInterface::VERIFY_NONE);
$nInputs = 0;
$nFees = 0;
$nSigOps = 0;
$txs = $block->getTransactions();
foreach ($block->getTransactions() as $tx) {
$nInputs += count($tx->getInputs());
$nSigOps += $this->blockCheck->getLegacySigOps($tx);
if ($nSigOps > $this->consensus->getParams()->getMaxBlockSigOps()) {
throw new \RuntimeException('Blocks::accept() - too many sigops');
}
if (!$tx->isCoinbase()) {
if ($flagP2sh) {
$nSigOps = $this->blockCheck->getP2shSigOps($view, $tx);
if ($nSigOps > $this->consensus->getParams()->getMaxBlockSigOps()) {
throw new \RuntimeException('Blocks::accept() - too many sigops');
}
}
$fee = $this->math->sub($view->getValueIn($this->math, $tx), $tx->getValueOut());
$nFees = $this->math->add($nFees, $fee);
$this->blockCheck->checkInputs($view, $tx, $index->getHeight(), $flags);
}
}
$this->blockCheck->checkCoinbaseSubsidy($txs[0], $nFees, $index->getHeight());
$this->db->insertBlock($block);
$state->updateLastBlock($index);
return $index;
}
/**
* @param Peer $peer
* @param GetHeaders $getHeaders
*/
public function onGetHeaders(Peer $peer, GetHeaders $getHeaders)
{
return;
$chain = $this->chain()->getChain();
$locator = $getHeaders->getLocator();
if (count($locator->getHashes()) === 0) {
$start = $locator->getHashStop()->getHex();
} else {
$start = $this->db->findFork($chain, $locator);
}
$headers = $this->db->fetchNextHeaders($start);
$peer->headers($headers);
echo 'Sending from ' . $start . ' + ' . count($headers) . ' headers ' . PHP_EOL;
}
/**
* @param ChainState $state
* @param BlockHeaderInterface[] $headers
* @return bool
* @throws \Exception
*/
public function acceptBatch(ChainState $state, array $headers)
{
$tip = $state->getChain();
$batch = array();
$startIndex = $tip->getIndex();
foreach ($headers as $header) {
if ($tip->containsHash($header->getHash())) {
continue;
}
$prevIndex = $tip->getIndex();
if ($prevIndex->getHash() !== $header->getPrevBlock()) {
throw new \RuntimeException('Header mismatch, header.prevBlock does not refer to tip');
}
$index = $this->headerCheck->check($header)->checkContextual($state, $header)->makeIndex($prevIndex, $header);
$tip->updateTip($index);
$batch[] = $tip->getIndex();
}
// Do a batch update of the chain
if (count($batch) > 0) {
$this->db->insertIndexBatch($startIndex, $batch);
unset($batch);
}
return true;
}