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var UnspentOutputFinder = require('./unspent_output_finder'); |
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var bitcoin = require('bitcoinjs-lib'); |
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var bip39 = require("bip39"); |
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var CryptoJS = require('crypto-js'); |
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var blocktrail = require('./blocktrail'); |
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var EncryptionMnemonic = require('./encryption_mnemonic'); |
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var Encryption = require('./encryption'); |
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var walletSDK = require('./wallet'); |
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var _ = require('lodash'); |
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var q = require('q'); |
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var async = require('async'); |
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/** |
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* |
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* @param backupData |
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* @param bitcoinDataClient |
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* @param options |
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* @constructor |
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*/ |
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var WalletSweeper = function(backupData, bitcoinDataClient, options) { |
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/* jshint -W071, -W074 */ |
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var self = this; |
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this.defaultSettings = { |
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network: 'btc', |
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testnet: false, |
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regtest: false, |
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logging: false, |
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bitcoinCash: false, |
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sweepBatchSize: 200 |
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}; |
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this.settings = _.merge({}, this.defaultSettings, options); |
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this.bitcoinDataClient = bitcoinDataClient; |
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this.utxoFinder = new UnspentOutputFinder(bitcoinDataClient, this.settings); |
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this.sweepData = null; |
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// set the bitcoinlib network |
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if (typeof options.network === "object") { |
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this.network = options.network; |
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} else { |
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this.network = this.getBitcoinNetwork(this.settings.network, this.settings.testnet, this.settings.regtest); |
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} |
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backupData.walletVersion = backupData.walletVersion || 2; //default to version 2 wallets |
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var usePassword = false; |
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// validate backup data, cleanup input, and prepare seeds |
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48
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if (!Array.isArray(backupData.blocktrailKeys)) { |
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throw new Error('blocktrail pub keys are required (must be type Array)'); |
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} |
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switch (backupData.walletVersion) { |
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53
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case 1: |
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54
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if (typeof backupData.primaryMnemonic === "undefined" || !backupData.primaryMnemonic) { |
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throw new Error('missing primary mnemonic for version 1 wallet'); |
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56
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} |
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if (typeof backupData.backupMnemonic === "undefined" || !backupData.backupMnemonic) { |
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throw new Error('missing backup mnemonic for version 1 wallet'); |
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} |
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if (typeof backupData.primaryPassphrase === "undefined") { |
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throw new Error('missing primary passphrase for version 1 wallet'); |
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} |
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// cleanup copy paste errors from mnemonics |
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backupData.primaryMnemonic = backupData.primaryMnemonic.trim() |
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.replace(new RegExp("\r\n", 'g'), " ") |
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.replace(new RegExp("\n", 'g'), " ") |
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.replace(/\s+/g, " "); |
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backupData.backupMnemonic = backupData.backupMnemonic.trim() |
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.replace(new RegExp("\r\n", 'g'), " ") |
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.replace(new RegExp("\n", 'g'), " ") |
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.replace(/\s+/g, " "); |
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break; |
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75
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case 2: |
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case 3: |
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if (typeof backupData.encryptedPrimaryMnemonic === "undefined" || !backupData.encryptedPrimaryMnemonic) { |
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throw new Error('missing encrypted primary seed for version 2 wallet'); |
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} |
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if (typeof backupData.backupMnemonic === "undefined" || (!backupData.backupMnemonic && backupData.backupMnemonic !== false)) { |
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throw new Error('missing backup seed for version 2 wallet'); |
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} |
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//can either recover with password and password encrypted secret, or with encrypted recovery secret and a decryption key |
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usePassword = typeof backupData.password !== "undefined" && backupData.password !== null; |
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if (usePassword) { |
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if (typeof backupData.passwordEncryptedSecretMnemonic === "undefined" || !backupData.passwordEncryptedSecretMnemonic) { |
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throw new Error('missing password encrypted secret for version 2 wallet'); |
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} |
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if (typeof backupData.password === "undefined") { |
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throw new Error('missing primary passphrase for version 2 wallet'); |
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} |
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} else { |
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if (typeof backupData.encryptedRecoverySecretMnemonic === "undefined" || !backupData.encryptedRecoverySecretMnemonic) { |
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throw new Error('missing encrypted recovery secret for version 2 wallet (recovery without password)'); |
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} |
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if (!backupData.recoverySecretDecryptionKey) { |
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throw new Error('missing recovery secret decryption key for version 2 wallet (recovery without password)'); |
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} |
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} |
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// cleanup copy paste errors from mnemonics |
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backupData.encryptedPrimaryMnemonic = backupData.encryptedPrimaryMnemonic.trim() |
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.replace(new RegExp("\r\n", 'g'), " ") |
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.replace(new RegExp("\n", 'g'), " ") |
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.replace(/\s+/g, " "); |
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backupData.backupMnemonic = (backupData.backupMnemonic || "").trim() |
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.replace(new RegExp("\r\n", 'g'), " ") |
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.replace(new RegExp("\n", 'g'), " ") |
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.replace(/\s+/g, " "); |
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if (backupData.recoverySecretDecryptionKey) { |
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backupData.recoverySecretDecryptionKey = backupData.recoverySecretDecryptionKey.trim() |
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.replace(new RegExp("\r\n", 'g'), " ") |
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.replace(new RegExp("\n", 'g'), " ") |
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.replace(/\s+/g, " "); |
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} |
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if (usePassword) { |
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backupData.passwordEncryptedSecretMnemonic = backupData.passwordEncryptedSecretMnemonic.trim() |
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.replace(new RegExp("\r\n", 'g'), " ").replace(new RegExp("\n", 'g'), " ").replace(/\s+/g, " "); |
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} else { |
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backupData.encryptedRecoverySecretMnemonic = backupData.encryptedRecoverySecretMnemonic.trim() |
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.replace(new RegExp("\r\n", 'g'), " ").replace(new RegExp("\n", 'g'), " ").replace(/\s+/g, " "); |
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} |
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break; |
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default: |
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throw new Error('Wrong version [' + backupData.walletVersion + ']'); |
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} |
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// create BIP32 HDNodes for the Blocktrail public keys |
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this.blocktrailPublicKeys = {}; |
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_.each(backupData.blocktrailKeys, function(blocktrailKey) { |
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self.blocktrailPublicKeys[blocktrailKey['keyIndex']] = bitcoin.HDNode.fromBase58(blocktrailKey['pubkey'], self.network); |
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}); |
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// convert the primary and backup mnemonics to seeds (using BIP39) |
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var primarySeed, backupSeed, secret; |
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switch (backupData.walletVersion) { |
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case 1: |
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primarySeed = bip39.mnemonicToSeed(backupData.primaryMnemonic, backupData.primaryPassphrase); |
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backupSeed = bip39.mnemonicToSeed(backupData.backupMnemonic, ""); |
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break; |
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145
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case 2: |
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// convert mnemonics to hex (bip39) and then base64 for decryption |
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backupData.encryptedPrimaryMnemonic = blocktrail.convert(bip39.mnemonicToEntropy(backupData.encryptedPrimaryMnemonic), 'hex', 'base64'); |
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if (usePassword) { |
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backupData.passwordEncryptedSecretMnemonic = blocktrail.convert( |
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bip39.mnemonicToEntropy(backupData.passwordEncryptedSecretMnemonic), 'hex', 'base64'); |
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} else { |
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backupData.encryptedRecoverySecretMnemonic = blocktrail.convert( |
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bip39.mnemonicToEntropy(backupData.encryptedRecoverySecretMnemonic), 'hex', 'base64'); |
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} |
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// decrypt encryption secret |
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if (usePassword) { |
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secret = CryptoJS.AES.decrypt(backupData.passwordEncryptedSecretMnemonic, backupData.password).toString(CryptoJS.enc.Utf8); |
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} else { |
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secret = CryptoJS.AES.decrypt(backupData.encryptedRecoverySecretMnemonic, backupData.recoverySecretDecryptionKey).toString(CryptoJS.enc.Utf8); |
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} |
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163
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if (!secret) { |
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throw new Error("Could not decrypt secret with " + (usePassword ? "password" : "decryption key")); |
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} |
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// now finally decrypt the primary seed and convert to buffer (along with backup seed) |
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primarySeed = new Buffer(CryptoJS.AES.decrypt(backupData.encryptedPrimaryMnemonic, secret).toString(CryptoJS.enc.Utf8), 'base64'); |
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169
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170
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if (backupData.backupMnemonic) { |
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backupSeed = new Buffer(bip39.mnemonicToEntropy(backupData.backupMnemonic), 'hex'); |
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} |
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174
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break; |
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176
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case 3: |
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// convert mnemonics to hex (bip39) and then base64 for decryption |
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backupData.encryptedPrimaryMnemonic = EncryptionMnemonic.decode(backupData.encryptedPrimaryMnemonic); |
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if (usePassword) { |
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backupData.passwordEncryptedSecretMnemonic = EncryptionMnemonic.decode(backupData.passwordEncryptedSecretMnemonic); |
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} else { |
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backupData.encryptedRecoverySecretMnemonic = EncryptionMnemonic.decode(backupData.encryptedRecoverySecretMnemonic); |
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} |
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185
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// decrypt encryption secret |
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186
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if (usePassword) { |
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secret = Encryption.decrypt(backupData.passwordEncryptedSecretMnemonic, new Buffer(backupData.password)); |
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188
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} else { |
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secret = Encryption.decrypt(backupData.encryptedRecoverySecretMnemonic, new Buffer(backupData.recoverySecretDecryptionKey, 'hex')); |
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} |
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192
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if (!secret) { |
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throw new Error("Could not decrypt secret with " + (usePassword ? "password" : "decryption key")); |
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} |
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196
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// now finally decrypt the primary seed and convert to buffer (along with backup seed) |
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primarySeed = Encryption.decrypt(backupData.encryptedPrimaryMnemonic, secret); |
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if (backupData.backupMnemonic) { |
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backupSeed = new Buffer(bip39.mnemonicToEntropy(backupData.backupMnemonic), 'hex'); |
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} |
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202
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break; |
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default: |
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throw new Error('Wrong version [' + backupData.walletVersion + ']'); |
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} |
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208
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// convert the primary and backup seeds to private keys (using BIP32) |
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this.primaryPrivateKey = bitcoin.HDNode.fromSeedBuffer(primarySeed, this.network); |
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if (backupSeed) { |
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this.backupPrivateKey = bitcoin.HDNode.fromSeedBuffer(backupSeed, this.network); |
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this.backupPublicKey = this.backupPrivateKey.neutered(); |
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} else { |
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this.backupPrivateKey = false; |
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this.backupPublicKey = bitcoin.HDNode.fromBase58(backupData.backupPublicKey, this.network); |
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} |
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if (this.settings.logging) { |
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console.log('using password method: ' + usePassword); |
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console.log("Primary Prv Key: " + this.primaryPrivateKey.toBase58()); |
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console.log("Primary Pub Key: " + this.primaryPrivateKey.neutered().toBase58()); |
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console.log("Backup Prv Key: " + (this.backupPrivateKey ? this.backupPrivateKey.toBase58() : null)); |
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console.log("Backup Pub Key: " + this.backupPublicKey.toBase58()); |
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} |
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}; |
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228
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229
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/** |
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230
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* returns an appropriate bitcoin-js lib network |
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* |
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232
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* @param network |
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233
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* @param testnet |
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234
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* @param regtest |
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235
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* @returns {*[]} |
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236
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*/ |
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237
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WalletSweeper.prototype.getBitcoinNetwork = function(network, testnet, regtest) { |
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switch (network.toLowerCase()) { |
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case 'btc': |
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240
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case 'bitcoin': |
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241
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if (regtest) { |
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242
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return bitcoin.networks.regtest; |
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243
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} else if (testnet) { |
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244
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return bitcoin.networks.testnet; |
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245
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} else { |
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246
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return bitcoin.networks.bitcoin; |
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247
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} |
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248
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break; |
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249
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case 'tbtc': |
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250
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case 'bitcoin-testnet': |
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251
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return bitcoin.networks.testnet; |
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252
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default: |
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253
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throw new Error("Unknown network " + network); |
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254
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} |
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255
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}; |
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256
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257
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/** |
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258
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* gets the blocktrail pub key for the given path from the stored array of pub keys |
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259
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* |
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260
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* @param path |
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261
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* @returns {boolean} |
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262
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*/ |
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263
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WalletSweeper.prototype.getBlocktrailPublicKey = function(path) { |
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264
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path = path.replace("m", "M"); |
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265
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var keyIndex = path.split("/")[1].replace("'", ""); |
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266
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267
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if (!this.blocktrailPublicKeys[keyIndex]) { |
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268
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throw new Error("Wallet.getBlocktrailPublicKey keyIndex (" + keyIndex + ") is unknown to us"); |
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269
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} |
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270
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271
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return this.blocktrailPublicKeys[keyIndex]; |
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272
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}; |
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273
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274
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/** |
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275
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* generate multisig address and redeem script for given path |
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276
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* |
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277
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* @param path |
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278
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* @returns {{address, redeem: *, witness: *}} |
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279
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*/ |
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280
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WalletSweeper.prototype.createAddress = function(path) { |
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281
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//ensure a public path is used |
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282
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path = path.replace("m", "M"); |
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283
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var keyIndex = path.split("/")[1].replace("'", ""); |
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284
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var scriptType = parseInt(path.split("/")[2]); |
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285
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286
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//derive the primary pub key directly from the primary priv key |
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287
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var primaryPubKey = walletSDK.deriveByPath(this.primaryPrivateKey, path, "m"); |
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288
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//derive the backup pub key directly from the backup priv key (unharden path) |
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289
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|
|
var backupPubKey = walletSDK.deriveByPath(this.backupPublicKey, path.replace("'", ""), "M"); |
|
290
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|
|
//derive a pub key for this path from the blocktrail pub key |
|
291
|
|
|
var blocktrailPubKey = walletSDK.deriveByPath(this.getBlocktrailPublicKey(path), path, "M/" + keyIndex + "'"); |
|
292
|
|
|
|
|
293
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|
|
//sort the keys and generate a multisig redeem script and address |
|
294
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|
|
var multisigKeys = walletSDK.sortMultiSigKeys([ |
|
295
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|
|
primaryPubKey.keyPair.getPublicKeyBuffer(), |
|
296
|
|
|
backupPubKey.keyPair.getPublicKeyBuffer(), |
|
297
|
|
|
blocktrailPubKey.keyPair.getPublicKeyBuffer() |
|
298
|
|
|
]); |
|
299
|
|
|
|
|
300
|
|
|
var multisig = bitcoin.script.multisig.output.encode(2, multisigKeys); |
|
301
|
|
|
var redeemScript, witnessScript; |
|
302
|
|
|
if (this.network !== "bitcoincash" && scriptType === walletSDK.CHAIN_BTC_SEGWIT) { |
|
303
|
|
|
witnessScript = multisig; |
|
304
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|
|
redeemScript = bitcoin.script.witnessScriptHash.output.encode(bitcoin.crypto.sha256(witnessScript)); |
|
305
|
|
|
} else { |
|
306
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|
|
witnessScript = null; |
|
307
|
|
|
redeemScript = multisig; |
|
308
|
|
|
} |
|
309
|
|
|
var scriptHash = bitcoin.crypto.hash160(redeemScript); |
|
310
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|
|
var scriptPubKey = bitcoin.script.scriptHash.output.encode(scriptHash); |
|
311
|
|
|
|
|
312
|
|
|
var network = this.network; |
|
313
|
|
|
if (typeof this.network !== "undefined") { |
|
314
|
|
|
network = this.network; |
|
315
|
|
|
} |
|
316
|
|
|
var address = bitcoin.address.fromOutputScript(scriptPubKey, network, !!this.settings.bitcoinCash); |
|
317
|
|
|
|
|
318
|
|
|
// Insight nodes want nothing to do with 'bitcoin:' or 'bitcoincash:' prefixes |
|
319
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|
|
address = address.replace('bitcoin:', '').replace('bitcoincash:', ''); |
|
320
|
|
|
|
|
321
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|
|
//@todo return as buffers |
|
322
|
|
|
return {address: address.toString(), redeem: redeemScript, witness: witnessScript}; |
|
323
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|
|
}; |
|
324
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|
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|
|
325
|
|
|
/** |
|
326
|
|
|
* create a batch of multisig addresses |
|
327
|
|
|
* |
|
328
|
|
|
* @param start |
|
329
|
|
|
* @param count |
|
330
|
|
|
* @param keyIndex |
|
331
|
|
|
* @param chain |
|
332
|
|
|
* @returns {{}} |
|
333
|
|
|
*/ |
|
334
|
|
|
WalletSweeper.prototype.createBatchAddresses = function(start, count, keyIndex, chain) { |
|
335
|
|
|
var self = this; |
|
336
|
|
|
var addresses = {}; |
|
337
|
|
|
|
|
338
|
|
|
return q.all(_.range(0, count).map(function(i) { |
|
339
|
|
|
//create a path subsequent address |
|
340
|
|
|
var path = "M/" + keyIndex + "'/" + chain + "/" + (start + i); |
|
341
|
|
|
var multisig = self.createAddress(path); |
|
342
|
|
|
addresses[multisig['address']] = { |
|
343
|
|
|
redeem: multisig['redeem'], |
|
344
|
|
|
witness: multisig['witness'], |
|
345
|
|
|
path: path |
|
346
|
|
|
}; |
|
347
|
|
|
})).then(function() { |
|
348
|
|
|
return addresses; |
|
349
|
|
|
}); |
|
350
|
|
|
}; |
|
351
|
|
|
|
|
352
|
|
|
WalletSweeper.prototype.discoverWalletFunds = function(increment, cb) { |
|
353
|
|
|
var self = this; |
|
354
|
|
|
var totalBalance = 0; |
|
355
|
|
|
var totalUTXOs = 0; |
|
356
|
|
|
var totalAddressesGenerated = 0; |
|
357
|
|
|
var addressUTXOs = {}; //addresses and their utxos, paths and redeem scripts |
|
358
|
|
|
if (typeof increment === "undefined") { |
|
359
|
|
|
increment = this.settings.sweepBatchSize; |
|
360
|
|
|
} |
|
361
|
|
|
|
|
362
|
|
|
var deferred = q.defer(); |
|
363
|
|
|
deferred.promise.nodeify(cb); |
|
364
|
|
|
|
|
365
|
|
|
var checkChain; |
|
366
|
|
|
if (this.network === "bitcoincash") { |
|
367
|
|
|
checkChain = [0, 1]; |
|
368
|
|
|
} else { |
|
369
|
|
|
checkChain = [0, 1, 2]; |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
async.nextTick(function() { |
|
373
|
|
|
//for each blocktrail pub key, do fund discovery on batches of addresses |
|
374
|
|
|
async.eachSeries(Object.keys(self.blocktrailPublicKeys), function(keyIndex, done) { |
|
375
|
|
|
async.eachSeries(checkChain, function(chain, done) { |
|
376
|
|
|
var i = 0; |
|
377
|
|
|
var hasTransactions = false; |
|
378
|
|
|
|
|
379
|
|
|
async.doWhilst(function(done) { |
|
380
|
|
|
//do |
|
381
|
|
|
if (self.settings.logging) { |
|
382
|
|
|
console.log("generating addresses " + i + " -> " + (i + increment) + " using blocktrail key index: " + keyIndex + ", chain: " + chain); |
|
|
|
|
|
|
383
|
|
|
} |
|
384
|
|
|
deferred.notify({ |
|
385
|
|
|
message: "generating addresses " + i + " -> " + (i + increment) + "", |
|
386
|
|
|
increment: increment, |
|
387
|
|
|
btPubKeyIndex: keyIndex, |
|
388
|
|
|
chain: chain, |
|
389
|
|
|
//addresses: [], |
|
390
|
|
|
totalAddresses: totalAddressesGenerated, |
|
391
|
|
|
addressUTXOs: addressUTXOs, |
|
392
|
|
|
totalUTXOs: totalUTXOs, |
|
393
|
|
|
totalBalance: totalBalance |
|
394
|
|
|
}); |
|
395
|
|
|
|
|
396
|
|
|
async.nextTick(function() { |
|
397
|
|
|
self.createBatchAddresses(i, increment, keyIndex, chain) |
|
398
|
|
|
.then(function(batch) { |
|
399
|
|
|
totalAddressesGenerated += Object.keys(batch).length; |
|
400
|
|
|
|
|
401
|
|
|
if (self.settings.logging) { |
|
402
|
|
|
console.log("starting fund discovery for " + increment + " addresses..."); |
|
|
|
|
|
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
|
|
deferred.notify({ |
|
406
|
|
|
message: "starting fund discovery for " + increment + " addresses", |
|
407
|
|
|
increment: increment, |
|
408
|
|
|
btPubKeyIndex: keyIndex, |
|
409
|
|
|
//addresses: addresses, |
|
410
|
|
|
totalAddresses: totalAddressesGenerated, |
|
411
|
|
|
addressUTXOs: addressUTXOs, |
|
412
|
|
|
totalUTXOs: totalUTXOs, |
|
413
|
|
|
totalBalance: totalBalance |
|
414
|
|
|
}); |
|
415
|
|
|
|
|
416
|
|
|
//get the unspent outputs for this batch of addresses |
|
417
|
|
|
return self.bitcoinDataClient.batchAddressHasTransactions(_.keys(batch)).then(function(_hasTransactions) { |
|
418
|
|
|
hasTransactions = _hasTransactions; |
|
419
|
|
|
if (self.settings.logging) { |
|
420
|
|
|
console.log("batch " + (hasTransactions ? "has" : "does not have") + " transactions..."); |
|
|
|
|
|
|
421
|
|
|
} |
|
422
|
|
|
|
|
423
|
|
|
return q.when(hasTransactions) |
|
424
|
|
|
.then(function(hasTransactions) { |
|
425
|
|
|
if (!hasTransactions) { |
|
426
|
|
|
return; |
|
427
|
|
|
} |
|
428
|
|
|
|
|
429
|
|
|
//get the unspent outputs for this batch of addresses |
|
430
|
|
|
return self.utxoFinder.getUTXOs(_.keys(batch)).then(function(utxos) { |
|
431
|
|
|
// save the address utxos, along with relevant path and redeem script |
|
432
|
|
|
_.each(utxos, function(outputs, address) { |
|
433
|
|
|
var witnessScript = null; |
|
434
|
|
|
if (typeof batch[address]['witness'] !== 'undefined') { |
|
435
|
|
|
witnessScript = batch[address]['witness']; |
|
436
|
|
|
|
|
437
|
|
|
} |
|
438
|
|
|
addressUTXOs[address] = { |
|
439
|
|
|
path: batch[address]['path'], |
|
440
|
|
|
redeem: batch[address]['redeem'], |
|
441
|
|
|
witness: witnessScript, |
|
442
|
|
|
utxos: outputs |
|
443
|
|
|
}; |
|
444
|
|
|
|
|
445
|
|
|
totalUTXOs += outputs.length; |
|
446
|
|
|
|
|
447
|
|
|
//add up the total utxo value for all addresses |
|
448
|
|
|
totalBalance = _.reduce(outputs, function(carry, output) { |
|
449
|
|
|
return carry + output['value']; |
|
450
|
|
|
}, totalBalance); |
|
451
|
|
|
|
|
452
|
|
|
if (self.settings.logging) { |
|
453
|
|
|
console.log("found " + outputs.length + " unspent outputs for address: " + address); |
|
|
|
|
|
|
454
|
|
|
} |
|
455
|
|
|
}); |
|
456
|
|
|
|
|
457
|
|
|
deferred.notify({ |
|
458
|
|
|
message: "discovering funds", |
|
459
|
|
|
increment: increment, |
|
460
|
|
|
btPubKeyIndex: keyIndex, |
|
461
|
|
|
totalAddresses: totalAddressesGenerated, |
|
462
|
|
|
addressUTXOs: addressUTXOs, |
|
463
|
|
|
totalUTXOs: totalUTXOs, |
|
464
|
|
|
totalBalance: totalBalance |
|
465
|
|
|
}); |
|
466
|
|
|
}); |
|
467
|
|
|
}) |
|
468
|
|
|
; |
|
469
|
|
|
}); |
|
470
|
|
|
}) |
|
471
|
|
|
.then( |
|
472
|
|
|
function() { |
|
473
|
|
|
//ready for the next batch |
|
474
|
|
|
i += increment; |
|
475
|
|
|
async.nextTick(done); |
|
476
|
|
|
}, |
|
477
|
|
|
function(err) { |
|
478
|
|
|
done(err); |
|
479
|
|
|
} |
|
480
|
|
|
) |
|
481
|
|
|
; |
|
482
|
|
|
}); |
|
483
|
|
|
}, function() { |
|
484
|
|
|
//while |
|
485
|
|
|
return hasTransactions; |
|
486
|
|
|
}, function(err) { |
|
487
|
|
|
//all done |
|
488
|
|
|
if (err) { |
|
489
|
|
|
console.log("batch complete, but with errors", err.message); |
|
|
|
|
|
|
490
|
|
|
|
|
491
|
|
|
deferred.notify({ |
|
492
|
|
|
message: "batch complete, but with errors: " + err.message, |
|
493
|
|
|
error: err, |
|
494
|
|
|
increment: increment, |
|
495
|
|
|
btPubKeyIndex: keyIndex, |
|
496
|
|
|
totalAddresses: totalAddressesGenerated, |
|
497
|
|
|
addressUTXOs: addressUTXOs, |
|
498
|
|
|
totalUTXOs: totalUTXOs, |
|
499
|
|
|
totalBalance: totalBalance |
|
500
|
|
|
}); |
|
501
|
|
|
} |
|
502
|
|
|
//ready for next Blocktrail pub key |
|
503
|
|
|
async.nextTick(done); |
|
504
|
|
|
}); |
|
505
|
|
|
}, function(err) { |
|
506
|
|
|
done(err); |
|
507
|
|
|
}); |
|
508
|
|
|
}, function(err) { |
|
509
|
|
|
//callback |
|
510
|
|
|
if (err) { |
|
511
|
|
|
//perhaps we should also reject the promise, and stop everything? |
|
512
|
|
|
if (self.settings.logging) { |
|
513
|
|
|
console.log("error encountered when discovering funds", err); |
|
|
|
|
|
|
514
|
|
|
} |
|
515
|
|
|
} |
|
516
|
|
|
|
|
517
|
|
|
if (self.settings.logging) { |
|
518
|
|
|
console.log("finished fund discovery: " + totalBalance + " Satoshi (in " + totalUTXOs + " outputs) " + |
|
519
|
|
|
"found when searching " + totalAddressesGenerated + " addresses"); |
|
520
|
|
|
} |
|
521
|
|
|
|
|
522
|
|
|
self.sweepData = { |
|
523
|
|
|
utxos: addressUTXOs, |
|
524
|
|
|
count: totalUTXOs, |
|
525
|
|
|
balance: totalBalance, |
|
526
|
|
|
addressesSearched: totalAddressesGenerated |
|
527
|
|
|
}; |
|
528
|
|
|
|
|
529
|
|
|
//resolve the promise |
|
530
|
|
|
deferred.resolve(self.sweepData); |
|
531
|
|
|
}); |
|
532
|
|
|
}); |
|
533
|
|
|
|
|
534
|
|
|
return deferred.promise; |
|
535
|
|
|
}; |
|
536
|
|
|
|
|
537
|
|
|
WalletSweeper.prototype.sweepWallet = function(destinationAddress, cb) { |
|
538
|
|
|
var self = this; |
|
539
|
|
|
var deferred = q.defer(); |
|
540
|
|
|
deferred.promise.nodeify(cb); |
|
541
|
|
|
|
|
542
|
|
|
if (self.settings.logging) { |
|
543
|
|
|
console.log("starting wallet sweeping to address " + destinationAddress); |
|
|
|
|
|
|
544
|
|
|
} |
|
545
|
|
|
|
|
546
|
|
|
q.when(true) |
|
547
|
|
|
.then(function() { |
|
548
|
|
|
if (!self.sweepData) { |
|
|
|
|
|
|
549
|
|
|
//do wallet fund discovery |
|
550
|
|
|
return self.discoverWalletFunds() |
|
551
|
|
|
.progress(function(progress) { |
|
552
|
|
|
deferred.notify(progress); |
|
553
|
|
|
}); |
|
554
|
|
|
} |
|
555
|
|
|
}) |
|
556
|
|
|
.then(function() { |
|
557
|
|
|
return self.bitcoinDataClient.estimateFee(); |
|
558
|
|
|
}) |
|
559
|
|
|
.then(function(feePerKb) { |
|
560
|
|
|
if (self.sweepData['balance'] === 0) { |
|
561
|
|
|
//no funds found |
|
562
|
|
|
deferred.reject("No funds found after searching through " + self.sweepData['addressesSearched'] + " addresses"); |
|
563
|
|
|
return deferred.promise; |
|
564
|
|
|
} |
|
565
|
|
|
|
|
566
|
|
|
//create and sign the transaction |
|
567
|
|
|
return self.createTransaction(destinationAddress, null, feePerKb, deferred); |
|
568
|
|
|
}) |
|
569
|
|
|
.then(function(r) { |
|
570
|
|
|
deferred.resolve(r); |
|
571
|
|
|
}, function(e) { |
|
572
|
|
|
deferred.reject(e); |
|
573
|
|
|
}); |
|
574
|
|
|
|
|
575
|
|
|
return deferred.promise; |
|
576
|
|
|
}; |
|
577
|
|
|
|
|
578
|
|
|
/** |
|
579
|
|
|
* creates a raw transaction from the sweep data |
|
580
|
|
|
* @param destinationAddress the destination address for the transaction |
|
581
|
|
|
* @param fee a specific transaction fee to use (optional: if null, fee will be estimated) |
|
582
|
|
|
* @param feePerKb fee per kb (optional: if null, use default value) |
|
583
|
|
|
* @param deferred a deferred promise object, used for giving progress updates (optional) |
|
584
|
|
|
*/ |
|
585
|
|
|
WalletSweeper.prototype.createTransaction = function(destinationAddress, fee, feePerKb, deferred) { |
|
586
|
|
|
var self = this; |
|
587
|
|
|
if (this.settings.logging) { |
|
588
|
|
|
console.log("Creating transaction to address destinationAddress"); |
|
|
|
|
|
|
589
|
|
|
} |
|
590
|
|
|
if (deferred) { |
|
591
|
|
|
deferred.notify({ |
|
592
|
|
|
message: "creating raw transaction to " + destinationAddress |
|
593
|
|
|
}); |
|
594
|
|
|
} |
|
595
|
|
|
|
|
596
|
|
|
// create raw transaction |
|
597
|
|
|
var rawTransaction = new bitcoin.TransactionBuilder(this.network); |
|
598
|
|
|
if (this.settings.bitcoinCash) { |
|
599
|
|
|
rawTransaction.enableBitcoinCash(); |
|
600
|
|
|
} |
|
601
|
|
|
var inputs = []; |
|
602
|
|
|
_.each(this.sweepData['utxos'], function(data, address) { |
|
603
|
|
|
_.each(data.utxos, function(utxo) { |
|
604
|
|
|
rawTransaction.addInput(utxo['hash'], utxo['index']); |
|
605
|
|
|
inputs.push({ |
|
606
|
|
|
txid: utxo['hash'], |
|
607
|
|
|
vout: utxo['index'], |
|
608
|
|
|
scriptPubKey: utxo['script_hex'], |
|
609
|
|
|
value: utxo['value'], |
|
610
|
|
|
address: address, |
|
611
|
|
|
path: data['path'], |
|
612
|
|
|
redeemScript: data['redeem'], |
|
613
|
|
|
witnessScript: data['witness'] |
|
614
|
|
|
}); |
|
615
|
|
|
}); |
|
616
|
|
|
}); |
|
617
|
|
|
if (!rawTransaction) { |
|
618
|
|
|
throw new Error("Failed to create raw transaction"); |
|
619
|
|
|
} |
|
620
|
|
|
|
|
621
|
|
|
var sendAmount = self.sweepData['balance']; |
|
622
|
|
|
var outputIdx = rawTransaction.addOutput(destinationAddress, sendAmount); |
|
623
|
|
|
|
|
624
|
|
|
if (typeof fee === "undefined" || fee === null) { |
|
625
|
|
|
//estimate the fee and reduce it's value from the output |
|
626
|
|
|
if (deferred) { |
|
627
|
|
|
deferred.notify({ |
|
628
|
|
|
message: "estimating transaction fee, based on " + blocktrail.toBTC(feePerKb) + " BTC/kb" |
|
629
|
|
|
}); |
|
630
|
|
|
} |
|
631
|
|
|
|
|
632
|
|
|
var toHexString = function(byteArray) { |
|
633
|
|
|
return Array.prototype.map.call(byteArray, function(byte) { |
|
634
|
|
|
return ('0' + (byte & 0xFF).toString(16)).slice(-2); |
|
635
|
|
|
}).join(''); |
|
636
|
|
|
}; |
|
637
|
|
|
|
|
638
|
|
|
var calcUtxos = inputs.map(function(input) { |
|
639
|
|
|
var rs = (typeof input.redeemScript === "string" || !input.redeemScript) |
|
640
|
|
|
? input.redeemScript : toHexString(input.redeemScript); |
|
641
|
|
|
var ws = (typeof input.witnessScript === "string" || !input.witnessScript) |
|
642
|
|
|
? input.witnessScript : toHexString(input.witnessScript); |
|
643
|
|
|
|
|
644
|
|
|
return { |
|
645
|
|
|
txid: input.txid, |
|
646
|
|
|
vout: input.vout, |
|
647
|
|
|
address: input.address, |
|
648
|
|
|
scriptpubkey_hex: input.scriptPubKey, |
|
649
|
|
|
redeem_script: rs, |
|
650
|
|
|
witness_script: ws, |
|
651
|
|
|
path: input.path, |
|
652
|
|
|
value: input.value |
|
653
|
|
|
}; |
|
654
|
|
|
}); |
|
655
|
|
|
fee = walletSDK.estimateVsizeFee(rawTransaction.tx, calcUtxos, feePerKb); |
|
656
|
|
|
} |
|
657
|
|
|
rawTransaction.tx.outs[outputIdx].value -= fee; |
|
658
|
|
|
|
|
659
|
|
|
//sign and return the raw transaction |
|
660
|
|
|
if (deferred) { |
|
661
|
|
|
deferred.notify({ |
|
662
|
|
|
message: "signing transaction" |
|
663
|
|
|
}); |
|
664
|
|
|
} |
|
665
|
|
|
return this.signTransaction(rawTransaction, inputs); |
|
666
|
|
|
}; |
|
667
|
|
|
|
|
668
|
|
|
WalletSweeper.prototype.signTransaction = function(rawTransaction, inputs) { |
|
669
|
|
|
var self = this; |
|
670
|
|
|
if (this.settings.logging) { |
|
671
|
|
|
console.log("Signing transaction"); |
|
|
|
|
|
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
var sigHash = bitcoin.Transaction.SIGHASH_ALL; |
|
675
|
|
|
if (this.settings.bitcoinCash) { |
|
676
|
|
|
sigHash |= bitcoin.Transaction.SIGHASH_BITCOINCASHBIP143; |
|
677
|
|
|
} |
|
678
|
|
|
|
|
679
|
|
|
//sign the transaction with the private key for each input |
|
680
|
|
|
_.each(inputs, function(input, index) { |
|
681
|
|
|
//create private keys for signing |
|
682
|
|
|
var primaryPrivKey = walletSDK.deriveByPath(self.primaryPrivateKey, input['path'].replace("M", "m"), "m").keyPair; |
|
683
|
|
|
rawTransaction.sign(index, primaryPrivKey, input['redeemScript'], sigHash, input['value'], input['witnessScript']); |
|
684
|
|
|
|
|
685
|
|
|
if (self.backupPrivateKey) { |
|
686
|
|
|
var backupPrivKey = walletSDK.deriveByPath(self.backupPrivateKey, input['path'].replace("'", "").replace("M", "m"), "m").keyPair; |
|
687
|
|
|
rawTransaction.sign(index, backupPrivKey, input['redeemScript'], sigHash, input['value'], input['witnessScript']); |
|
688
|
|
|
} |
|
689
|
|
|
}); |
|
690
|
|
|
|
|
691
|
|
|
if (self.backupPrivateKey) { |
|
692
|
|
|
return rawTransaction.build().toHex(); |
|
693
|
|
|
} else { |
|
694
|
|
|
return rawTransaction.buildIncomplete().toHex(); |
|
695
|
|
|
} |
|
696
|
|
|
}; |
|
697
|
|
|
|
|
698
|
|
|
module.exports = WalletSweeper; |
|
699
|
|
|
|
blocktrail /
blocktrail-sdk-nodejs
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.