425 lines
15 KiB
JavaScript
425 lines
15 KiB
JavaScript
/* global describe, it, beforeEach */
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var assert = require('assert')
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var baddress = require('../src/address')
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var bscript = require('../src/script')
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var ops = require('../src/opcodes')
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var BigInteger = require('bigi')
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var ECPair = require('../src/ecpair')
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var Transaction = require('../src/transaction')
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var TransactionBuilder = require('../src/transaction_builder')
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var NETWORKS = require('../src/networks')
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var fixtures = require('./fixtures/transaction_builder')
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function construct (f, dontSign) {
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var network = NETWORKS[f.network]
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var txb = new TransactionBuilder(network)
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if (f.version !== undefined) txb.setVersion(f.version)
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if (f.locktime !== undefined) txb.setLockTime(f.locktime)
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f.inputs.forEach(function (input) {
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var prevTx
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if (input.txRaw) {
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var constructed = construct(input.txRaw)
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if (input.txRaw.incomplete) prevTx = constructed.buildIncomplete()
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else prevTx = constructed.build()
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} else if (input.txHex) {
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prevTx = Transaction.fromHex(input.txHex)
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} else {
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prevTx = input.txId
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}
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var prevTxScript
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if (input.prevTxScript) {
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prevTxScript = bscript.fromASM(input.prevTxScript)
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}
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txb.addInput(prevTx, input.vout, input.sequence, prevTxScript)
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})
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f.outputs.forEach(function (output) {
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if (output.address) {
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txb.addOutput(output.address, output.value)
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} else {
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txb.addOutput(bscript.fromASM(output.script), output.value)
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}
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})
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if (dontSign) return txb
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f.inputs.forEach(function (input, index) {
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if (!input.signs) return
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input.signs.forEach(function (sign) {
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var keyPair = ECPair.fromWIF(sign.keyPair, network)
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var redeemScript
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if (sign.redeemScript) {
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redeemScript = bscript.fromASM(sign.redeemScript)
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}
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txb.sign(index, keyPair, redeemScript, sign.hashType)
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})
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})
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return txb
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}
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describe('TransactionBuilder', function () {
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// constants
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var keyPair = new ECPair(BigInteger.ONE)
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var scripts = [
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'1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH',
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'1cMh228HTCiwS8ZsaakH8A8wze1JR5ZsP'
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].map(function (x) {
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return baddress.toOutputScript(x)
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})
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var txHash = new Buffer('0e7cea811c0be9f73c0aca591034396e7264473fc25c1ca45195d7417b36cbe2', 'hex')
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describe('fromTransaction', function () {
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fixtures.valid.build.forEach(function (f) {
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it('returns TransactionBuilder, with ' + f.description, function () {
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var network = NETWORKS[f.network || 'bitcoin']
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var tx = Transaction.fromHex(f.txHex)
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var txb = TransactionBuilder.fromTransaction(tx, network)
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assert.strictEqual(txb.build().toHex(), f.txHex)
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assert.strictEqual(txb.network, network)
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})
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})
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fixtures.valid.fromTransaction.forEach(function (f) {
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it('returns TransactionBuilder, with ' + f.description, function () {
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var tx = new Transaction()
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f.inputs.forEach(function (input) {
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var txHash = [].reverse.call(new Buffer(input.txId, 'hex'))
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tx.addInput(txHash, input.vout, undefined, bscript.fromASM(input.scriptSig))
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})
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f.outputs.forEach(function (output) {
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tx.addOutput(bscript.fromASM(output.script), output.value)
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})
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var txb = TransactionBuilder.fromTransaction(tx)
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var txAfter = f.incomplete ? txb.buildIncomplete() : txb.build()
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txAfter.ins.forEach(function (input, i) {
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assert.equal(bscript.toASM(input.script), f.inputs[i].scriptSigAfter)
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})
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txAfter.outs.forEach(function (output, i) {
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assert.equal(bscript.toASM(output.script), f.outputs[i].script)
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})
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})
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})
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fixtures.invalid.fromTransaction.forEach(function (f) {
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it('throws ' + f.exception, function () {
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var tx = Transaction.fromHex(f.txHex)
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assert.throws(function () {
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TransactionBuilder.fromTransaction(tx)
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}, new RegExp(f.exception))
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})
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})
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})
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describe('addInput', function () {
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var txb
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beforeEach(function () {
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txb = new TransactionBuilder()
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})
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it('accepts a txHash, index [and sequence number]', function () {
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var vin = txb.addInput(txHash, 1, 54)
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assert.strictEqual(vin, 0)
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var txIn = txb.tx.ins[0]
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assert.strictEqual(txIn.hash, txHash)
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assert.strictEqual(txIn.index, 1)
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assert.strictEqual(txIn.sequence, 54)
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assert.strictEqual(txb.inputs[0].prevOutScript, undefined)
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})
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it('accepts a txHash, index [, sequence number and scriptPubKey]', function () {
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var vin = txb.addInput(txHash, 1, 54, scripts[1])
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assert.strictEqual(vin, 0)
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var txIn = txb.tx.ins[0]
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assert.strictEqual(txIn.hash, txHash)
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assert.strictEqual(txIn.index, 1)
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assert.strictEqual(txIn.sequence, 54)
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assert.strictEqual(txb.inputs[0].prevOutScript, scripts[1])
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})
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it('accepts a prevTx, index [and sequence number]', function () {
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var prevTx = new Transaction()
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prevTx.addOutput(scripts[0], 0)
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prevTx.addOutput(scripts[1], 1)
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var vin = txb.addInput(prevTx, 1, 54)
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assert.strictEqual(vin, 0)
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var txIn = txb.tx.ins[0]
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assert.deepEqual(txIn.hash, prevTx.getHash())
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assert.strictEqual(txIn.index, 1)
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assert.strictEqual(txIn.sequence, 54)
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assert.strictEqual(txb.inputs[0].prevOutScript, scripts[1])
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})
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it('returns the input index', function () {
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assert.strictEqual(txb.addInput(txHash, 0), 0)
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assert.strictEqual(txb.addInput(txHash, 1), 1)
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})
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it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function () {
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txb.addInput(txHash, 0)
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txb.sign(0, keyPair)
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assert.throws(function () {
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txb.addInput(txHash, 0)
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}, /No, this would invalidate signatures/)
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})
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})
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describe('addOutput', function () {
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var txb
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beforeEach(function () {
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txb = new TransactionBuilder()
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})
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it('accepts an address string and value', function () {
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var vout = txb.addOutput(keyPair.getAddress(), 1000)
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assert.strictEqual(vout, 0)
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var txout = txb.tx.outs[0]
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assert.deepEqual(txout.script, scripts[0])
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assert.strictEqual(txout.value, 1000)
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})
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it('accepts a ScriptPubKey and value', function () {
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var vout = txb.addOutput(scripts[0], 1000)
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assert.strictEqual(vout, 0)
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var txout = txb.tx.outs[0]
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assert.deepEqual(txout.script, scripts[0])
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assert.strictEqual(txout.value, 1000)
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})
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it('throws if address is of the wrong network', function () {
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assert.throws(function () {
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txb.addOutput('2NGHjvjw83pcVFgMcA7QvSMh2c246rxLVz9', 1000)
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}, /2NGHjvjw83pcVFgMcA7QvSMh2c246rxLVz9 has no matching Script/)
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})
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it('add second output after signed first input with SIGHASH_NONE', function () {
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txb.addInput(txHash, 0)
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txb.addOutput(scripts[0], 2000)
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txb.sign(0, keyPair, undefined, Transaction.SIGHASH_NONE)
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assert.equal(txb.addOutput(scripts[1], 9000), 1)
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})
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it('add first output after signed first input with SIGHASH_NONE', function () {
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txb.addInput(txHash, 0)
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txb.sign(0, keyPair, undefined, Transaction.SIGHASH_NONE)
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assert.equal(txb.addOutput(scripts[0], 2000), 0)
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})
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it('add second output after signed first input with SIGHASH_SINGLE', function () {
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txb.addInput(txHash, 0)
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txb.addOutput(scripts[0], 2000)
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txb.sign(0, keyPair, undefined, Transaction.SIGHASH_SINGLE)
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assert.equal(txb.addOutput(scripts[1], 9000), 1)
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})
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it('add first output after signed first input with SIGHASH_SINGLE', function () {
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txb.addInput(txHash, 0)
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txb.sign(0, keyPair, undefined, Transaction.SIGHASH_SINGLE)
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assert.throws(function () {
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txb.addOutput(scripts[0], 2000)
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}, /No, this would invalidate signatures/)
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})
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it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function () {
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txb.addInput(txHash, 0)
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txb.addOutput(scripts[0], 2000)
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txb.sign(0, keyPair)
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assert.throws(function () {
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txb.addOutput(scripts[1], 9000)
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}, /No, this would invalidate signatures/)
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})
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})
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describe('setLockTime', function () {
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it('throws if if there exist any scriptSigs', function () {
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var txb = new TransactionBuilder()
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txb.addInput(txHash, 0)
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txb.sign(0, keyPair)
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assert.throws(function () {
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txb.setLockTime(65535)
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}, /No, this would invalidate signatures/)
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})
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})
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describe('sign', function () {
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fixtures.invalid.sign.forEach(function (f) {
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it('throws on ' + f.exception + (f.description ? ' (' + f.description + ')' : ''), function () {
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var txb = construct(f, true)
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f.inputs.forEach(function (input, index) {
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input.signs.forEach(function (sign) {
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var keyPairNetwork = NETWORKS[sign.network || f.network]
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var keyPair = ECPair.fromWIF(sign.keyPair, keyPairNetwork)
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var redeemScript
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if (sign.redeemScript) {
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redeemScript = bscript.fromASM(sign.redeemScript)
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}
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if (!sign.throws) {
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txb.sign(index, keyPair, redeemScript, sign.hashType)
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} else {
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assert.throws(function () {
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txb.sign(index, keyPair, redeemScript, sign.hashType)
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}, new RegExp(f.exception))
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}
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})
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})
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})
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})
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})
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describe('build', function () {
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fixtures.valid.build.forEach(function (f) {
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it('builds "' + f.description + '"', function () {
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var txb = construct(f)
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var tx = txb.build()
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assert.strictEqual(tx.toHex(), f.txHex)
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})
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})
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// TODO: remove duplicate test code
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fixtures.invalid.build.forEach(function (f) {
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describe('for ' + (f.description || f.exception), function () {
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it('throws ' + f.exception, function () {
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assert.throws(function () {
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var txb
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if (f.txHex) {
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txb = TransactionBuilder.fromTransaction(Transaction.fromHex(f.txHex))
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} else {
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txb = construct(f)
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}
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txb.build()
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}, new RegExp(f.exception))
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})
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// if throws on incomplete too, enforce that
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if (f.incomplete) {
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it('throws ' + f.exception, function () {
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assert.throws(function () {
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var txb
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if (f.txHex) {
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txb = TransactionBuilder.fromTransaction(Transaction.fromHex(f.txHex))
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} else {
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txb = construct(f)
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}
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txb.buildIncomplete()
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}, new RegExp(f.exception))
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})
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} else {
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it('does not throw if buildIncomplete', function () {
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var txb
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if (f.txHex) {
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txb = TransactionBuilder.fromTransaction(Transaction.fromHex(f.txHex))
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} else {
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txb = construct(f)
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}
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txb.buildIncomplete()
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})
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}
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})
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})
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})
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describe('multisig', function () {
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fixtures.valid.multisig.forEach(function (f) {
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it(f.description, function () {
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var txb = construct(f, true)
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var tx
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var network = NETWORKS[f.network]
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f.inputs.forEach(function (input, i) {
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var redeemScript = bscript.fromASM(input.redeemScript)
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input.signs.forEach(function (sign) {
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// rebuild the transaction each-time after the first
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if (tx) {
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// do we filter OP_0's beforehand?
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if (sign.filterOP_0) {
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var scriptSig = tx.ins[i].script
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// ignore OP_0 on the front, ignore redeemScript
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var signatures = bscript.decompile(scriptSig).slice(1, -1).filter(function (x) { return x !== ops.OP_0 })
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// rebuild/replace the scriptSig without them
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var replacement = bscript.scriptHash.input.encode(bscript.multisig.input.encode(signatures), redeemScript)
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assert.strictEqual(bscript.toASM(replacement), sign.scriptSigFiltered)
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tx.ins[i].script = replacement
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}
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// now import it
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txb = TransactionBuilder.fromTransaction(tx, network)
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}
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var keyPair = ECPair.fromWIF(sign.keyPair, network)
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txb.sign(i, keyPair, redeemScript, sign.hashType)
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// update the tx
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tx = txb.buildIncomplete()
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// now verify the serialized scriptSig is as expected
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assert.strictEqual(bscript.toASM(tx.ins[i].script), sign.scriptSig)
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})
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})
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tx = txb.build()
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assert.strictEqual(tx.toHex(), f.txHex)
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})
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})
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})
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describe('multisig edge case', function () {
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var network = NETWORKS.testnet
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it('should handle badly pre-filled OP_0s', function () {
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// OP_0 is used where a signature is missing
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var redeemScripSig = bscript.fromASM('OP_0 OP_0 3045022100daf0f4f3339d9fbab42b098045c1e4958ee3b308f4ae17be80b63808558d0adb02202f07e3d1f79dc8da285ae0d7f68083d769c11f5621ebd9691d6b48c0d4283d7d01 52410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b84104c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a4104f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9388f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e67253ae')
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var redeemScript = bscript.fromASM('OP_2 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 04c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a 04f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9388f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e672 OP_3 OP_CHECKMULTISIG')
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var tx = new Transaction()
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tx.addInput(new Buffer('cff58855426469d0ef16442ee9c644c4fb13832467bcbc3173168a7916f07149', 'hex'), 0, undefined, redeemScripSig)
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tx.addOutput(new Buffer('76a914aa4d7985c57e011a8b3dd8e0e5a73aaef41629c588ac', 'hex'), 1000)
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// now import the Transaction
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var txb = TransactionBuilder.fromTransaction(tx, NETWORKS.testnet)
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var keyPair = ECPair.fromWIF('91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgx3cTMqe', network)
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txb.sign(0, keyPair, redeemScript)
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var tx2 = txb.build()
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assert.equal(tx2.getId(), 'eab59618a564e361adef6d918bd792903c3d41bcf1220137364fb847880467f9')
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assert.equal(bscript.toASM(tx2.ins[0].script), 'OP_0 3045022100daf0f4f3339d9fbab42b098045c1e4958ee3b308f4ae17be80b63808558d0adb02202f07e3d1f79dc8da285ae0d7f68083d769c11f5621ebd9691d6b48c0d4283d7d01 3045022100a346c61738304eac5e7702188764d19cdf68f4466196729db096d6c87ce18cdd022018c0e8ad03054b0e7e235cda6bedecf35881d7aa7d94ff425a8ace7220f38af001 52410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b84104c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a4104f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9388f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e67253ae')
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})
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})
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})
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