56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
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var binpack = require('binpack');
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var merkleTree = require('./merkleTree.js');
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var coinbase = require('./coinbase.js');
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var util = require('./util.js');
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var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, address){
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//private members
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function getMerkleHashes(steps){
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return steps.map(function(step){
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return util.reverseBuffer(step).toString('hex');
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});
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}
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function getTransactionBuffers(txs){
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var txHashes = txs.map(function(tx){
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return util.uint256BufferFromHash(tx.hash);
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});
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return [null].concat(txHashes);
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}
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//public members
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this.rpcData = rpcData;
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this.jobId = jobId;
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this.merkleTree = new merkleTree(getTransactionBuffers(rpcData.transactions));
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this.merkleBranch = getMerkleHashes(this.merkleTree.steps);
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this.coinbase = new coinbase.GenerationTransaction(
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rpcData.coinbasevalue,
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rpcData.coinbaseaux.flags,
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rpcData.height,
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address
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);
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this.getJobParams = function(){
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if (!this.jobParams){
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this.jobParams = [
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this.jobId,
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util.reverseHex(this.rpcData.previousblockhash),
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this.coinbase.serialized[0].toString('hex'),
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this.coinbase.serialized[1].toString('hex'),
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this.merkleBranch,
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binpack.packInt32(this.rpcData.version, 'big').toString('hex'),
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this.rpcData.bits,
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binpack.packUInt32(this.rpcData.curtime, 'big').toString('hex'),
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true
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];
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}
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return this.jobParams;
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}
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} |