예제 #1
0
 /**
  * @param ChainState $state
  * @param BlockInterface $block
  * @return UtxoView
  */
 public function fetchView(ChainState $state, BlockInterface $block)
 {
     $txs = $block->getTransactions();
     $txCount = count($txs);
     if (1 === $txCount) {
         return new UtxoView([]);
     }
     list($required, $newUnspent) = $this->filter($block);
     $found = $this->db->fetchUtxos($required, $block->getHeader()->getPrevBlock());
     return new UtxoView(array_merge($found, $newUnspent));
 }
예제 #2
0
 /**
  * @param BlockInterface $block
  * @return \BitWasp\Buffertools\Buffer
  */
 public function serialize(BlockInterface $block)
 {
     return Buffertools::concat($this->headerSerializer->serialize($block->getHeader()), $this->getTxsTemplate()->write([$block->getTransactions()->all()]));
 }
예제 #3
0
 /**
  * @param BlockInterface $block
  * @param BlockData $blockData
  * @param bool $checkSignatures
  * @param bool $flags
  * @param $height
  */
 public function checkBlockData(BlockInterface $block, BlockData $blockData, $checkSignatures, $flags, $height)
 {
     $validation = new ScriptValidation($checkSignatures, $flags);
     foreach ($block->getTransactions() as $tx) {
         $blockData->nSigOps += $this->blockCheck->getLegacySigOps($tx);
         if ($blockData->nSigOps > $this->consensus->getParams()->getMaxBlockSigOps()) {
             throw new \RuntimeException('Blocks::accept() - too many sigops');
         }
         if (!$tx->isCoinbase()) {
             if ($flags & InterpreterInterface::VERIFY_P2SH) {
                 $blockData->nSigOps += $this->blockCheck->getP2shSigOps($blockData->utxoView, $tx);
                 if ($blockData->nSigOps > $this->consensus->getParams()->getMaxBlockSigOps()) {
                     throw new \RuntimeException('Blocks::accept() - too many sigops');
                 }
             }
             $blockData->nFees = $this->math->add($blockData->nFees, $blockData->utxoView->getFeePaid($this->math, $tx));
             $this->blockCheck->checkInputs($blockData->utxoView, $tx, $height, $flags, $validation);
         }
     }
     if ($validation->active() && !$validation->result()) {
         throw new \RuntimeException('ScriptValidation failed!');
     }
     $this->blockCheck->checkCoinbaseSubsidy($block->getTransaction(0), $blockData->nFees, $height);
 }
예제 #4
0
파일: Db.php 프로젝트: sbwdlihao/node-php
 /**
  * @param BlockInterface $block
  * @return UtxoView
  */
 public function fetchUtxoView(BlockInterface $block)
 {
     $txs = $block->getTransactions();
     $txCount = count($txs);
     if (1 == $txCount) {
         return new UtxoView([]);
     }
     list($required, $outputSet) = $this->filterUtxoRequest($block);
     $requiredCount = count($required);
     $initialCount = count($outputSet);
     $joinList = '';
     $queryValues = ['hash' => $block->getHeader()->getPrevBlock()];
     for ($i = 0, $c = count($required), $last = $c - 1; $i < $c; $i++) {
         list($txid, $vout, $txidx) = $required[$i];
         if (0 == $i) {
             $joinList .= "SELECT :hashParent{$i} as hashParent, :noutparent{$i} as nOut, :txidx{$i} as txidx\n";
         } else {
             $joinList .= "  SELECT :hashParent{$i}, :noutparent{$i}, :txidx{$i} \n";
         }
         if ($i < $last) {
             $joinList .= "  UNION ALL\n";
         }
         $queryValues["hashParent{$i}"] = $txid;
         $queryValues["noutparent{$i}"] = $vout;
         $queryValues["txidx{$i}"] = $txidx;
     }
     $sql = "\n              SELECT    listed.hashParent as txid, listed.nOut as vout,\n                        o.value, o.scriptPubKey,\n                        allowed_block.height, listed.txidx\n              FROM      transaction_output o\n              INNER JOIN (\n                {$joinList}\n              ) as listed ON (listed.hashParent = o.parent_tx AND listed.nOut = o.nOutput)\n              INNER JOIN block_transactions as bt on listed.hashParent = bt.transaction_hash\n              JOIN (\n                    SELECT    parent.hash, parent.height\n                    FROM      headerIndex AS tip,\n                              headerIndex AS parent\n                    WHERE     tip.hash = :hash AND tip.lft BETWEEN parent.lft AND parent.rgt\n              ) as allowed_block on bt.block_hash = allowed_block.hash\n              ";
     $stmt = $this->dbh->prepare($sql);
     $stmt->execute($queryValues);
     foreach ($stmt->fetchAll(\PDO::FETCH_ASSOC) as $utxo) {
         $outputSet[] = new Utxo($utxo['txid'], $utxo['vout'], new TransactionOutput($utxo['value'], new Script(new Buffer($utxo['scriptPubKey']))));
     }
     if (count($outputSet) !== $initialCount + $requiredCount) {
         throw new \RuntimeException('Utxo was not found');
     }
     echo "Fetched {$requiredCount} of " . ($initialCount + $requiredCount) . "\n";
     return new UtxoView($outputSet);
 }
예제 #5
0
 /**
  * @param BlockInterface $block
  * @param BlockIndex $prevBlockIndex
  * @return bool
  */
 public function checkContextual(BlockInterface $block, BlockIndex $prevBlockIndex)
 {
     $newHeight = $prevBlockIndex->getHeight() + 1;
     $newTime = $block->getHeader()->getTimestamp();
     foreach ($block->getTransactions() as $transaction) {
         if (!$this->checkTransactionIsFinal($transaction, $newHeight, $newTime)) {
             throw new \RuntimeException('Block contains a non-final transaction');
         }
     }
     return $this;
 }
예제 #6
0
 /**
  * @param BlockIndexInterface $index
  * @param BlockInterface $block
  * @param BlockData $blockData
  */
 public function logBlock(BlockIndexInterface $index, BlockInterface $block, BlockData $blockData)
 {
     echo count($blockData->remainingNew) . "created and " . count($blockData->requiredOutpoints) . " destroyed\n";
     $this->log('block', ['hash' => $index->getHash()->getHex(), 'height' => $index->getHeight(), 'txs' => count($block->getTransactions()), 'nFees' => gmp_strval($blockData->nFees, 10), 'nSigOps' => $blockData->nSigOps, 'utxos' => ['created' => count($blockData->remainingNew), 'removed' => count($blockData->requiredOutpoints)]]);
 }
예제 #7
0
파일: Db.php 프로젝트: Bit-Wasp/node-php
 /**
  * @param int $blockId
  * @param BlockInterface $block
  * @param HashStorage $hashStorage
  * @return bool
  */
 public function insertBlockTransactions($blockId, BlockInterface $block, HashStorage $hashStorage)
 {
     $txListBind = [];
     $txListData = [];
     $temp = [];
     // Prepare SQL statement adding all transaction inputs in this block.
     $inBind = [];
     $inData = [];
     // Prepare SQL statement adding all transaction outputs in this block
     $outBind = [];
     $outData = [];
     // Add all transactions in the block
     $txBind = [];
     $txData = [];
     /** @var BufferInterface $txHash */
     $transactions = $block->getTransactions();
     foreach ($transactions as $i => $tx) {
         $txHash = $hashStorage[$tx];
         $hash = $txHash->getBinary();
         $temp[$i] = $hash;
         $valueOut = $tx->getValueOut();
         $nOut = count($tx->getOutputs());
         $nIn = count($tx->getInputs());
         $txListBind[] = " ( :headerId, :txId{$i}) ";
         $txBind[] = " ( :hash{$i} , :version{$i} , :nLockTime{$i} , :nOut{$i} , :nValueOut{$i} , :nFee{$i} , :isCoinbase{$i} ) ";
         $txData["hash{$i}"] = $hash;
         $txData["nOut{$i}"] = $nOut;
         $txData["nValueOut{$i}"] = $valueOut;
         $txData["nFee{$i}"] = '0';
         $txData["nLockTime{$i}"] = $tx->getLockTime();
         $txData["isCoinbase{$i}"] = (int) $tx->isCoinbase();
         $txData["version{$i}"] = $tx->getVersion();
         for ($j = 0; $j < $nIn; $j++) {
             $input = $tx->getInput($j);
             $inBind[] = " ( :parentId{$i} , :nInput" . $i . "n" . $j . ", :hashPrevOut" . $i . "n" . $j . ", :nPrevOut" . $i . "n" . $j . ", :scriptSig" . $i . "n" . $j . ", :nSequence" . $i . "n" . $j . " ) ";
             $outpoint = $input->getOutPoint();
             $inData["hashPrevOut" . $i . "n" . $j] = $outpoint->getTxId()->getBinary();
             $inData["nPrevOut" . $i . "n" . $j] = (int) $outpoint->getVout();
             $inData["scriptSig" . $i . "n" . $j] = $input->getScript()->getBinary();
             $inData["nSequence" . $i . "n" . $j] = $input->getSequence();
             $inData["nInput" . $i . "n" . $j] = $j;
         }
         for ($k = 0; $k < $nOut; $k++) {
             $output = $tx->getOutput($k);
             $outBind[] = " ( :parentId{$i} , :nOutput" . $i . "n" . $k . ", :value" . $i . "n" . $k . ", :scriptPubKey" . $i . "n" . $k . " ) ";
             $outData["value" . $i . "n" . $k] = $output->getValue();
             $outData["scriptPubKey" . $i . "n" . $k] = $output->getScript()->getBinary();
             $outData["nOutput" . $i . "n" . $k] = $k;
         }
     }
     $insertTx = $this->dbh->prepare('INSERT INTO transactions  (hash, version, nLockTime, nOut, valueOut, valueFee, isCoinbase ) VALUES ' . implode(', ', $txBind));
     $insertTx->execute($txData);
     unset($txBind);
     // Populate inserts
     $txListData['headerId'] = $blockId;
     $lastId = (int) $this->dbh->lastInsertId();
     foreach ($temp as $i => $hash) {
         $rowId = $i + $lastId;
         $val = $rowId;
         $outData["parentId{$i}"] = $val;
         $inData["parentId{$i}"] = $val;
         $txListData["txId{$i}"] = $val;
     }
     unset($val);
     $insertTxList = $this->dbh->prepare('INSERT INTO block_transactions  (block_hash, transaction_hash) VALUES ' . implode(', ', $txListBind));
     unset($txListBind);
     $insertInputs = $this->dbh->prepare('INSERT INTO transaction_input (parent_tx, nInput, hashPrevOut, nPrevOut, scriptSig, nSequence) VALUES ' . implode(', ', $inBind));
     unset($inBind);
     $insertOutputs = $this->dbh->prepare('INSERT INTO transaction_output  (parent_tx, nOutput, value, scriptPubKey) VALUES ' . implode(', ', $outBind));
     unset($outBind);
     $insertTxList->execute($txListData);
     $insertInputs->execute($inData);
     $insertOutputs->execute($outData);
     return true;
 }