Manuel Aráoz
10 years ago
7 changed files with 974 additions and 15 deletions
@ -1,12 +1,12 @@ |
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'use strict'; |
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|
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var _ = require('lodash'); |
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var BN = require('./crypto/bn'); |
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var BufferUtil = require('./util/buffer'); |
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var BufferReader = require('./encoding/bufferreader'); |
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var BufferWriter = require('./encoding/bufferwriter'); |
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var Hash = require('./crypto/hash'); |
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var JSUtil = require('./util/js'); |
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var BN = require('../crypto/bn'); |
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var BufferUtil = require('../util/buffer'); |
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var BufferReader = require('../encoding/bufferreader'); |
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var BufferWriter = require('../encoding/bufferwriter'); |
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var Hash = require('../crypto/hash'); |
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var JSUtil = require('../util/js'); |
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|
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/** |
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* Instantiate a BlockHeader from a Buffer, JSON object, or Object with |
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@ -0,0 +1,4 @@ |
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module.exports = require('./block'); |
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|
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module.exports.BlockHeader = require('./blockheader'); |
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module.exports.MerkleBlock = require('./merkleblock'); |
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@ -0,0 +1,299 @@ |
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'use strict'; |
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|
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var _ = require('lodash'); |
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var BlockHeader = require('./blockheader'); |
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var BufferUtil = require('../util/buffer'); |
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var BufferReader = require('../encoding/bufferreader'); |
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var BufferWriter = require('../encoding/bufferwriter'); |
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var Hash = require('../crypto/hash'); |
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var JSUtil = require('../util/js'); |
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var Transaction = require('../transaction'); |
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var $ = require('../util/preconditions'); |
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|
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/** |
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* Instantiate a MerkleBlock from a Buffer, JSON object, or Object with |
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* the properties of the Block |
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* |
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* @param {*} - A Buffer, JSON string, or Object representing a MerkleBlock |
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* @returns {MerkleBlock} |
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* @constructor |
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*/ |
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function MerkleBlock(arg) { |
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/* jshint maxstatements: 18 */ |
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|
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if (!(this instanceof MerkleBlock)) { |
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return new MerkleBlock(arg); |
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} |
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|
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var info = {}; |
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if (BufferUtil.isBuffer(arg)) { |
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info = MerkleBlock._fromBufferReader(BufferReader(arg)); |
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} else if (JSUtil.isValidJSON(arg)) { |
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info = MerkleBlock._fromJSON(arg); |
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} else if (_.isObject(arg)) { |
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var header; |
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if(arg.header instanceof BlockHeader) { |
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header = arg.header; |
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} else { |
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header = BlockHeader.fromJSON(JSON.stringify(arg.header)); |
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} |
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info = { |
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/** |
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* @name MerkleBlock#header |
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* @type {BlockHeader} |
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*/ |
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header: header, |
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/** |
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* @name MerkleBlock#numTransactions |
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* @type {Number} |
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*/ |
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numTransactions: arg.numTransactions, |
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/** |
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* @name MerkleBlock#hashes |
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* @type {String[]} |
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*/ |
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hashes: arg.hashes, |
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/** |
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* @name MerkleBlock#flags |
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* @type {Number[]} |
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*/ |
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flags: arg.flags |
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}; |
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} else { |
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throw new TypeError('Unrecognized argument for MerkleBlock'); |
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} |
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_.extend(this,info); |
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this._flagBitsUsed = 0; |
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this._hashesUsed = 0; |
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return this; |
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} |
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|
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/** |
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* @param {Buffer} - MerkleBlock data in a Buffer object |
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* @returns {MerkleBlock} - A MerkleBlock object |
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*/ |
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MerkleBlock.fromBuffer = function fromBuffer(buf) { |
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return MerkleBlock.fromBufferReader(BufferReader(buf)); |
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}; |
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|
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/** |
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* @param {BufferReader} - MerkleBlock data in a BufferReader object |
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* @returns {MerkleBlock} - A MerkleBlock object |
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*/ |
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MerkleBlock.fromBufferReader = function fromBufferReader(br) { |
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return new MerkleBlock(MerkleBlock._fromBufferReader(br)); |
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}; |
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|
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/** |
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* @param {String|Object} - A JSON String or Object |
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* @returns {MerkleBlock} - A MerkleBlock object |
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*/ |
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MerkleBlock.fromJSON = function fromJSON(buf) { |
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return new MerkleBlock(MerkleBlock._fromJSON(buf)); |
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}; |
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/** |
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* @returns {Buffer} - A buffer of the block |
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*/ |
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MerkleBlock.prototype.toBuffer = function toBuffer() { |
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return this.toBufferWriter().concat(); |
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}; |
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/** |
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* @param {BufferWriter} - An existing instance of BufferWriter |
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* @returns {BufferWriter} - An instance of BufferWriter representation of the MerkleBlock |
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*/ |
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MerkleBlock.prototype.toBufferWriter = function toBufferWriter(bw) { |
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if (!bw) { |
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bw = new BufferWriter(); |
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} |
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bw.write(this.header.toBuffer()); |
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bw.writeUInt32LE(this.numTransactions); |
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bw.writeVarintNum(this.hashes.length); |
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for (var i = 0; i < this.hashes.length; i++) { |
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bw.write(new Buffer(this.hashes[i], 'hex')); |
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} |
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bw.writeVarintNum(this.flags.length); |
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for (i = 0; i < this.flags.length; i++) { |
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bw.writeUInt8(this.flags[i]); |
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} |
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return bw; |
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}; |
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/** |
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* @returns {Object} - A plain object with the MerkleBlock properties |
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*/ |
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MerkleBlock.prototype.toObject = function toObject() { |
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return { |
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header: this.header.toObject(), |
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numTransactions: this.numTransactions, |
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hashes: this.hashes, |
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flags: this.flags |
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}; |
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}; |
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/** |
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* @returns {String} - A JSON string of a MerkleBlock |
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*/ |
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MerkleBlock.prototype.toJSON = function toJSON() { |
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return JSON.stringify(this.toObject()); |
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}; |
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/** |
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* Verify that the MerkleBlock is valid |
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* @returns {Boolean} - True/False whether this MerkleBlock is Valid |
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*/ |
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MerkleBlock.prototype.validMerkleTree = function validMerkleTree() { |
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$.checkState(_.isArray(this.flags), 'MerkleBlock flags is not an array'); |
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$.checkState(_.isArray(this.hashes), 'MerkleBlock hashes is not an array'); |
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// Can't have more hashes than numTransactions
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if(this.hashes.length > this.numTransactions) { |
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return false; |
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} |
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// Can't have more flag bits than num hashes
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if(this.flags.length * 8 < this.hashes.length) { |
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return false; |
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} |
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var height = this._calcTreeHeight(); |
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var opts = { hashesUsed: 0, flagBitsUsed: 0 }; |
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var root = this._traverseMerkleTree(height, 0, opts); |
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if(opts.hashesUsed !== this.hashes.length) { |
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return false; |
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} |
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return BufferUtil.equals(root, this.header.merkleRoot); |
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}; |
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/** |
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* Traverse a the tree in this MerkleBlock, validating it along the way |
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* Modeled after Bitcoin Core merkleblock.cpp TraverseAndExtract() |
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* @param {Number} - depth - Current height |
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* @param {Number} - pos - Current position in the tree |
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* @param {Object} - opts - Object with values that need to be mutated throughout the traversal |
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* @param {Number} - opts.flagBitsUsed - Number of flag bits used, should start at 0 |
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* @param {Number} - opts.hashesUsed - Number of hashes used, should start at 0 |
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* @param {Array} - opts.txs - Will finish populated by transactions found during traversal |
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* @returns {Buffer|null} - Buffer containing the Merkle Hash for that height |
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* @private |
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*/ |
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MerkleBlock.prototype._traverseMerkleTree = function traverseMerkleTree(depth, pos, opts) { |
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/* jshint maxcomplexity: 12*/ |
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/* jshint maxstatements: 20 */ |
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opts = opts || {}; |
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opts.txs = opts.txs || []; |
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opts.flagBitsUsed = opts.flagBitsUsed || 0; |
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opts.hashesUsed = opts.hashesUsed || 0; |
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if(opts.flagBitsUsed > this.flags.length * 8) { |
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return null; |
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} |
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var isParentOfMatch = (this.flags[opts.flagBitsUsed >> 3] >>> (opts.flagBitsUsed++ & 7)) & 1; |
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if(depth === 0 || !isParentOfMatch) { |
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if(opts.hashesUsed >= this.hashes.length) { |
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return null; |
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} |
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var hash = this.hashes[opts.hashesUsed++]; |
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if(depth === 0 && isParentOfMatch) { |
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opts.txs.push(hash); |
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} |
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return new Buffer(hash, 'hex'); |
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} else { |
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var left = this._traverseMerkleTree(depth-1, pos*2, opts); |
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var right = left; |
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if(pos*2+1 < this._calcTreeWidth(depth-1)) { |
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right = this._traverseMerkleTree(depth-1, pos*2+1, opts); |
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} |
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return Hash.sha256sha256(new Buffer.concat([left, right])); |
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} |
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}; |
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/** Calculates the width of a merkle tree at a given height. |
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* Modeled after Bitcoin Core merkleblock.h CalcTreeWidth() |
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* @param {Number} - Height at which we want the tree width |
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* @returns {Number} - Width of the tree at a given height |
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* @private |
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*/ |
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MerkleBlock.prototype._calcTreeWidth = function calcTreeWidth(height) { |
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return (this.numTransactions + (1 << height) - 1) >> height; |
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}; |
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/** Calculates the height of the merkle tree in this MerkleBlock |
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* @param {Number} - Height at which we want the tree width |
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* @returns {Number} - Height of the merkle tree in this MerkleBlock |
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* @private |
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*/ |
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MerkleBlock.prototype._calcTreeHeight = function calcTreeHeight() { |
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var height = 0; |
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while (this._calcTreeWidth(height) > 1) { |
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height++; |
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} |
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return height; |
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}; |
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/** |
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* @param {Transaction|String} - Transaction or Transaction ID Hash |
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* @returns {Boolean} - return true/false if this MerkleBlock has the TX or not |
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* @private |
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*/ |
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MerkleBlock.prototype.hasTransaction = function hasTransaction(tx) { |
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$.checkArgument(!_.isUndefined(tx), 'tx cannot be undefined'); |
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$.checkArgument(tx instanceof Transaction || typeof tx === 'string', |
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'Invalid tx given, tx must be a "string" or "Transaction"'); |
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var hash = tx; |
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if(tx instanceof Transaction) { |
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// We need to reverse the id hash for the lookup
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hash = BufferUtil.reverse(new Buffer(tx.id, 'hex')).toString('hex'); |
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} |
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var txs = []; |
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var height = this._calcTreeHeight(); |
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this._traverseMerkleTree(height, 0, { txs: txs }); |
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return txs.indexOf(hash) !== -1; |
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}; |
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/** |
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* @param {Buffer} - MerkleBlock data |
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* @returns {Object} - An Object representing merkleblock data |
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* @private |
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*/ |
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MerkleBlock._fromBufferReader = function _fromBufferReader(br) { |
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$.checkState(!br.finished(), 'No merkleblock data received'); |
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var info = {}; |
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info.header = BlockHeader.fromBufferReader(br); |
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info.numTransactions = br.readUInt32LE(); |
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var numHashes = br.readVarintNum(); |
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info.hashes = []; |
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for (var i = 0; i < numHashes; i++) { |
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info.hashes.push(br.read(32).toString('hex')); |
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} |
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var numFlags = br.readVarintNum(); |
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info.flags = []; |
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for (i = 0; i < numFlags; i++) { |
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info.flags.push(br.readUInt8()); |
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} |
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return info; |
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}; |
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/** |
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* @param {String|Object} - A JSON or String Object |
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* @returns {Object} - An Object representing merkleblock data |
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* @private |
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*/ |
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MerkleBlock._fromJSON = function _fromJSON(data) { |
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if (JSUtil.isValidJSON(data)) { |
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data = JSON.parse(data); |
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} |
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var info = { |
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header: BlockHeader.fromJSON(data.header), |
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numTransactions: data.numTransactions, |
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hashes: data.hashes, |
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flags: data.flags, |
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}; |
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return info; |
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}; |
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module.exports = MerkleBlock; |
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@ -0,0 +1,455 @@ |
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'use strict'; |
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module.exports = { |
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TXHEX: [ |
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[ // From Mainnet Block 100014
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// From: http://btc.blockr.io/api/v1/tx/raw/652b0aa4cf4f17bdb31f7a1d308331bba91f3b3cbf8f39c9cb5e19d4015b9f01
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"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" |
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], |
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], |
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HEX: [ |
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// Mainnet Block 100014
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"01000000" + // Version
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"82bb869cf3a793432a66e826e05a6fc37469f8efb7421dc88067010000000000" + // prevHash
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"7f16c5962e8bd963659c793ce370d95f093bc7e367117b3c30c1f8fdd0d97287" + // MerkleRoot
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"76381b4d" + // Time
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"4c86041b" + // Bits
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"554b8529" + // Nonce
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"07000000" + // Transaction Count
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"04" + // Hash Count
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"3612262624047ee87660be1a707519a443b1c1ce3d248cbfc6c15870f6c5daa2" + // Hash1
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"019f5b01d4195ecbc9398fbf3c3b1fa9bb3183301d7a1fb3bd174fcfa40a2b65" + // Hash2
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"41ed70551dd7e841883ab8f0b16bf04176b7d1480e4f0af9f3d4c3595768d068" + // Hash3
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"20d2a7bc994987302e5b1ac80fc425fe25f8b63169ea78e68fbaaefa59379bbf" + // Hash4
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"01" + // Num Flag Bytes
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"1d" // Flags
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], |
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JSON: [ |
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{ // Mainnet Block 100014
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header: { |
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version: 1, |
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prevHash: "82bb869cf3a793432a66e826e05a6fc37469f8efb7421dc88067010000000000", |
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merkleRoot: "7f16c5962e8bd963659c793ce370d95f093bc7e367117b3c30c1f8fdd0d97287", |
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time: 1293629558, |
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bits: 453281356, |
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nonce: 151839121 |
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}, |
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numTransactions: 7, |
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hashes: [ |
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"3612262624047ee87660be1a707519a443b1c1ce3d248cbfc6c15870f6c5daa2", |
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"019f5b01d4195ecbc9398fbf3c3b1fa9bb3183301d7a1fb3bd174fcfa40a2b65", |
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"41ed70551dd7e841883ab8f0b16bf04176b7d1480e4f0af9f3d4c3595768d068", |
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"20d2a7bc994987302e5b1ac80fc425fe25f8b63169ea78e68fbaaefa59379bbf" |
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], |
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flags: [ 29 ] |
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}, |
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{ // Mainnet Block 12363
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header: { |
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version: 1, |
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prevHash: "f8aeda5ec9058d406dc0c3ad73cd8761accfd07cdc5ee055a0e6c3ac00000000", |
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merkleRoot: "d008a007400650a08aeb612ef60a1f7c72961a8a578093feaf2fb6737a3e3167", |
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time: 1240800408, |
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nonce: 2506812214, |
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bits: 486604799, |
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}, |
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numTransactions: 1, |
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hashes: [ |
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"d008a007400650a08aeb612ef60a1f7c72961a8a578093feaf2fb6737a3e3167" |
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], |
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flags: [ 0 ] |
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}, |
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{ // Mainnet Block 280472
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flags : [ |
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255, 85, 218, 225, 90, 173, 229, 43, 183, 195, 213, 229, 43, 108, 43, |
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219, 226, 215, 217, 226, 61, 92, 253, 92, 237, 134, 215, 170, 174, 182, |
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170, 237, 220, 251, 106, 235, 109, 109, 253, 219, 58, 159, 182, 221, |
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190, 189, 181, 126, 251, 223, 223, 254, 255, 255, 255, 255, 255, 255, |
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, |
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255, 255, 255, 255, 255, 255, 255, 15 |
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], |
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numTransactions : 1159, |
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hashes : [ |
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"ad6c32eef89f29f29d43d14500dcb0ac35cba42626244a4dbded64e27d3cdbe4", |
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"31878bc4a8004d4d2457f7c93571a927de9f22fcacca0356f96fbed5500e1a93", |
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"252931be626437e48a264aac1f7d178e1ffe8e1c94812e4970f7ab19dfadf074", |
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"53bd172839306e615ee24552b3ff3c8e2ce2e5a9a6d0c9d1160f1c4bcd73cfde", |
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"21f3e6be36f0c770938b63505ee2a6065cf9ba5b3ba0d9e115ef9081fb386554", |
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"7b5bff18588f2f82c130ef92351b289d4a2e6a79dfd2c969ab626fe41d5f3341", |
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"4672cdcffcd1f3eb4ece0e6558d3d6cef9f42a142df6d46fa6daa4efe5e25a4c", |
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"f2ba2db60d57f29734fcf98099391a1404c5c1399eb87a6c00f8df9974d1e85d", |
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"25f5dea2941e8ff493ac7810a4e11cc2846720633469479e8ae29eecee0b2cd2", |
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"08c71bc1ea3583602db17a5681189f346472447df48bb0254eca8bcdc0e7f2fe", |
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"42ccdd6e22c0f9da824c6d036f02fe0e5d33368bfa701567bab3fb49acbd9d12", |
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"971b294ae8678ccc2b1e16c22eb44ded5ef1738dc85d509998982c8d6d742ac5", |
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"0332bacb6ca645b25682cda96b72c990729e2cf58b0845dc1364cf9785cd09de", |
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"26ea9fe5be9baddfa879b2e756d71f446779efceef157de30bf799bb632996d0", |
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"7abcc87284e324bb22d9f2f3365a1745dc9af5e525b659ed60f62d948883f4f5", |
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"cbcd1f8f2b6dab1253e74d15d1f04c95955e485e5fe462064291d88f84180578", |
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"fb703bcbdb66148eedb309291609b4e881e94bb9ec8dde1372fa11756ca2e7c5", |
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"8bd19b733b82e2d02801a55bfd59e262066704c5b09799391224c70862fabfa6", |
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"ceaeaa83b77263ca910511d385392613695c4882c7fb018c9d37a246b56132e8", |
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"8c1003d7a5086e57dbd29667668140c1624cc96e96ca97c60f5deb94f15e9a57", |
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"85945287f9867b8402a287571ea9849fdd5b381873bfc0a6ddd823ef6058f6a5", |
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"b8d9bb4aea6db726f91cc37040723de9b69048dc725cd0316f7ec7dc10c6d276", |
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"be9338992c7d0ec10a6364ab8afcde1cf42d45360cc1707208b8d29315742b84", |
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"7d8b1015509a837ca028c3ec40cddb8e59a96c036e30d18ce84922b8f34e0d1f", |
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"e9e502636caaa0aa6b978571e3facd5f7a25d25df889583c54e959331051810d", |
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"489a38d2430ebd638f945bbbc3117345dd2bda666be09bcf454b09272fcc6754", |
|||
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"4c4acf3cefd0b466d418d3b7f58f9b41681f803a81878e6fad8409f430e8bf04", |
|||
"6fdceb9e02428d9175acbe04590b693a5c644eb8cae672f4c4d06d145ea8ab1a", |
|||
"823486c19fd887d93dc2d1478edf5773ba381f13f0ae6f287c1038e7c81aef1c", |
|||
"036bf6944a47791471e9a2cb86615de837f3aa234a7d1cd024026b3e1daee79e" |
|||
], |
|||
header : { |
|||
merkleRoot : "cb83ce96b3202ecc3e6cca64c7111f54bf31b0f48e83d253c6ae959c12402f79", |
|||
time : 1389715824, |
|||
version : 2, |
|||
nonce : 322045839, |
|||
bits : 419587686, |
|||
prevHash : "def905ad5e5984cb337084f984cc638d28bb437a13cef6240100000000000000" |
|||
} |
|||
} |
|||
] |
|||
}; |
|||
@ -0,0 +1,200 @@ |
|||
'use strict'; |
|||
|
|||
var should = require('chai').should(); |
|||
|
|||
var bitcore = require('..'); |
|||
var MerkleBlock = bitcore.MerkleBlock; |
|||
var BufferReader = bitcore.encoding.BufferReader; |
|||
var BufferWriter = bitcore.encoding.BufferWriter; |
|||
var Transaction = bitcore.Transaction; |
|||
var data = require('./data/merkleblocks.js'); |
|||
var transactionVector = require('./data/tx_creation'); |
|||
|
|||
|
|||
describe('MerkleBlock', function() { |
|||
var blockhex = data.HEX[0]; |
|||
var blockbuf = new Buffer(blockhex,'hex'); |
|||
var blockJSON = JSON.stringify(data.JSON[0]); |
|||
var blockObject = JSON.parse(JSON.stringify(data.JSON[0])); |
|||
|
|||
describe('#constructor', function() { |
|||
it('should make a new merkleblock from buffer', function() { |
|||
var b = MerkleBlock(blockbuf); |
|||
b.toBuffer().toString('hex').should.equal(blockhex); |
|||
}); |
|||
|
|||
it('should make a new merkleblock from object', function() { |
|||
var b = MerkleBlock(blockObject); |
|||
b.toObject().should.deep.equal(blockObject); |
|||
}); |
|||
|
|||
it('should make a new merkleblock from JSON', function() { |
|||
var b = MerkleBlock(blockJSON); |
|||
b.toJSON().should.equal(blockJSON); |
|||
}); |
|||
|
|||
it('should not make an empty block', function() { |
|||
(function() { |
|||
return new MerkleBlock(); |
|||
}).should.throw('Unrecognized argument for MerkleBlock'); |
|||
}); |
|||
}); |
|||
|
|||
describe('#fromJSON', function() { |
|||
|
|||
it('should set these known values', function() { |
|||
var block = MerkleBlock.fromJSON(blockJSON); |
|||
should.exist(block.header); |
|||
should.exist(block.numTransactions); |
|||
should.exist(block.hashes); |
|||
should.exist(block.flags); |
|||
}); |
|||
|
|||
it('should set these known values', function() { |
|||
var block = MerkleBlock(blockJSON); |
|||
should.exist(block.header); |
|||
should.exist(block.numTransactions); |
|||
should.exist(block.hashes); |
|||
should.exist(block.flags); |
|||
}); |
|||
|
|||
it('accepts an object as argument', function() { |
|||
var block = MerkleBlock(blockbuf); |
|||
MerkleBlock.fromJSON(block.toObject()).should.exist(); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#toJSON', function() { |
|||
|
|||
it('should recover these known values', function() { |
|||
var block = MerkleBlock.fromJSON(blockJSON); |
|||
var b = JSON.parse(block.toJSON()); |
|||
should.exist(block.header); |
|||
should.exist(block.numTransactions); |
|||
should.exist(block.hashes); |
|||
should.exist(block.flags); |
|||
should.exist(b.header); |
|||
should.exist(b.numTransactions); |
|||
should.exist(b.hashes); |
|||
should.exist(b.flags); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#fromBuffer', function() { |
|||
|
|||
it('should make a block from this known buffer', function() { |
|||
var block = MerkleBlock.fromBuffer(blockbuf); |
|||
block.toBuffer().toString('hex').should.equal(blockhex); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#fromBufferReader', function() { |
|||
|
|||
it('should make a block from this known buffer', function() { |
|||
var block = MerkleBlock.fromBufferReader(BufferReader(blockbuf)); |
|||
block.toBuffer().toString('hex').should.equal(blockhex); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#toBuffer', function() { |
|||
|
|||
it('should recover a block from this known buffer', function() { |
|||
var block = MerkleBlock.fromBuffer(blockbuf); |
|||
block.toBuffer().toString('hex').should.equal(blockhex); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#toBufferWriter', function() { |
|||
|
|||
it('should recover a block from this known buffer', function() { |
|||
var block = MerkleBlock.fromBuffer(blockbuf); |
|||
block.toBufferWriter().concat().toString('hex').should.equal(blockhex); |
|||
}); |
|||
|
|||
it('doesn\'t create a bufferWriter if one provided', function() { |
|||
var writer = new BufferWriter(); |
|||
var block = MerkleBlock.fromBuffer(blockbuf); |
|||
block.toBufferWriter(writer).should.equal(writer); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
|
|||
describe('#validMerkleTree', function() { |
|||
|
|||
it('should validate good merkleblocks', function() { |
|||
data.JSON.forEach(function(json) { |
|||
var b = MerkleBlock(JSON.stringify(json)); |
|||
b.validMerkleTree().should.equal(true); |
|||
}); |
|||
}); |
|||
|
|||
it('should not validate merkleblocks with too many hashes', function() { |
|||
var b = MerkleBlock(JSON.stringify(data.JSON[0])); |
|||
// Add too many hashes
|
|||
var i = 0; |
|||
while(i <= b.numTransactions) { |
|||
b.hashes.push('bad' + i++); |
|||
} |
|||
b.validMerkleTree().should.equal(false); |
|||
}); |
|||
|
|||
it('should not validate merkleblocks with too few bit flags', function() { |
|||
var b = MerkleBlock(blockJSON); |
|||
b.flags.pop(); |
|||
b.validMerkleTree().should.equal(false); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
describe('#hasTransaction', function() { |
|||
|
|||
it('should find transactions via hash string', function() { |
|||
var json = data.JSON[0]; |
|||
var txId = new Buffer(json.hashes[1],'hex').toString('hex'); |
|||
var b = MerkleBlock(JSON.stringify(json)); |
|||
b.hasTransaction(txId).should.equal(true); |
|||
b.hasTransaction(txId + 'abcd').should.equal(false); |
|||
}); |
|||
|
|||
it('should find transactions via Transaction object', function() { |
|||
var json = data.JSON[0]; |
|||
var txBuf = new Buffer(data.TXHEX[0][0],'hex'); |
|||
var tx = new Transaction().fromBuffer(txBuf); |
|||
var b = MerkleBlock(JSON.stringify(json)); |
|||
b.hasTransaction(tx).should.equal(true); |
|||
}); |
|||
|
|||
it('should not find non-existant Transaction object', function() { |
|||
// Reuse another transaction already in data/ dir
|
|||
var serialized = transactionVector[0][7]; |
|||
var tx = new Transaction().fromBuffer(new Buffer(serialized, 'hex')); |
|||
var b = MerkleBlock(JSON.stringify(data.JSON[0])); |
|||
b.hasTransaction(tx).should.equal(false); |
|||
}); |
|||
|
|||
it('should not match with merkle nodes', function() { |
|||
var b = MerkleBlock(JSON.stringify(data.JSON[0])); |
|||
|
|||
var hashData = [ |
|||
['3612262624047ee87660be1a707519a443b1c1ce3d248cbfc6c15870f6c5daa2', false], |
|||
['019f5b01d4195ecbc9398fbf3c3b1fa9bb3183301d7a1fb3bd174fcfa40a2b65', true], |
|||
['41ed70551dd7e841883ab8f0b16bf04176b7d1480e4f0af9f3d4c3595768d068', false], |
|||
['20d2a7bc994987302e5b1ac80fc425fe25f8b63169ea78e68fbaaefa59379bbf', false] |
|||
]; |
|||
|
|||
hashData.forEach(function check(d){ |
|||
b.hasTransaction(d[0]).should.equal(d[1]); |
|||
}); |
|||
|
|||
}); |
|||
|
|||
}); |
|||
|
|||
}); |
|||
|
|||
Loading…
Reference in new issue