215 lines
7.6 KiB
JavaScript
215 lines
7.6 KiB
JavaScript
/* global describe, it */
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var assert = require('assert')
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var bitcoin = require('../../')
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var regtestUtils = require('./_regtest')
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var regtest = regtestUtils.network
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var bip65 = require('bip65')
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var alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', regtest)
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var bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', regtest)
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describe('bitcoinjs-lib (transactions w/ CLTV)', function () {
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var hashType = bitcoin.Transaction.SIGHASH_ALL
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function cltvCheckSigOutput (aQ, bQ, lockTime) {
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return bitcoin.script.compile([
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bitcoin.opcodes.OP_IF,
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bitcoin.script.number.encode(lockTime),
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bitcoin.opcodes.OP_CHECKLOCKTIMEVERIFY,
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bitcoin.opcodes.OP_DROP,
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bitcoin.opcodes.OP_ELSE,
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bQ.getPublicKeyBuffer(),
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bitcoin.opcodes.OP_CHECKSIGVERIFY,
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bitcoin.opcodes.OP_ENDIF,
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aQ.getPublicKeyBuffer(),
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bitcoin.opcodes.OP_CHECKSIG
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])
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}
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function utcNow () {
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return Math.floor(Date.now() / 1000)
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}
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// expiry past, {Alice's signature} OP_TRUE
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it('can create (and broadcast via 3PBP) a Transaction where Alice can redeem the output after the expiry (in the past)', function (done) {
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this.timeout(30000)
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// 3 hours ago
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var lockTime = bip65.encode({ utc: utcNow() - (3600 * 3) })
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var redeemScript = cltvCheckSigOutput(alice, bob, lockTime)
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var scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
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var address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
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// fund the P2SH(CLTV) address
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regtestUtils.faucet(address, 1e5, function (err, unspent) {
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if (err) return done(err)
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var txb = new bitcoin.TransactionBuilder(regtest)
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txb.setLockTime(lockTime)
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txb.addInput(unspent.txId, unspent.vout, 0xfffffffe)
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4)
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// {Alice's signature} OP_TRUE
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var tx = txb.buildIncomplete()
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var signatureHash = tx.hashForSignature(0, redeemScript, hashType)
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var redeemScriptSig = bitcoin.script.scriptHash.input.encode([
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
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bitcoin.opcodes.OP_TRUE
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], redeemScript)
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tx.setInputScript(0, redeemScriptSig)
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regtestUtils.broadcast(tx.toHex(), function (err) {
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if (err) return done(err)
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regtestUtils.verify({
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txId: tx.getId(),
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address: regtestUtils.RANDOM_ADDRESS,
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vout: 0,
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value: 7e4
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}, done)
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})
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})
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})
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// expiry will pass, {Alice's signature} OP_TRUE
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it('can create (and broadcast via 3PBP) a Transaction where Alice can redeem the output after the expiry (in the future)', function (done) {
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this.timeout(30000)
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regtestUtils.height(function (err, height) {
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if (err) return done(err)
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// 50 blocks from now
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var lockTime = bip65.encode({ blocks: height + 50 })
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var redeemScript = cltvCheckSigOutput(alice, bob, lockTime)
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var scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
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var address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
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// fund the P2SH(CLTV) address
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regtestUtils.faucet(address, 1e5, function (err, unspent) {
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if (err) return done(err)
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var txb = new bitcoin.TransactionBuilder(regtest)
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txb.setLockTime(lockTime)
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txb.addInput(unspent.txId, unspent.vout, 0xfffffffe)
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4)
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// {Alice's signature} OP_TRUE
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var tx = txb.buildIncomplete()
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var signatureHash = tx.hashForSignature(0, redeemScript, hashType)
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var redeemScriptSig = bitcoin.script.scriptHash.input.encode([
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
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bitcoin.opcodes.OP_TRUE
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], redeemScript)
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tx.setInputScript(0, redeemScriptSig)
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regtestUtils.broadcast(tx.toHex(), function (err) {
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// fails before the expiry
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assert.throws(function () {
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if (err) throw err
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}, /Error: 64: non-final/)
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// into the future!
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regtestUtils.mine(51, function (err) {
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if (err) return done(err)
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regtestUtils.broadcast(tx.toHex(), function (err) {
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if (err) return done(err)
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regtestUtils.verify({
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txId: tx.getId(),
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address: regtestUtils.RANDOM_ADDRESS,
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vout: 0,
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value: 7e4
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}, done)
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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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// expiry ignored, {Bob's signature} {Alice's signature} OP_FALSE
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it('can create (and broadcast via 3PBP) a Transaction where Alice and Bob can redeem the output at any time', function (done) {
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this.timeout(30000)
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// two hours ago
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var timeUtc = utcNow() - (3600 * 2)
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var redeemScript = cltvCheckSigOutput(alice, bob, timeUtc)
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var scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
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var address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
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// fund the P2SH(CLTV) address
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regtestUtils.faucet(address, 2e5, function (err, unspent) {
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if (err) return done(err)
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var txb = new bitcoin.TransactionBuilder(regtest)
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txb.setLockTime(timeUtc)
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txb.addInput(unspent.txId, unspent.vout, 0xfffffffe)
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 8e4)
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// {Alice's signature} {Bob's signature} OP_FALSE
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var tx = txb.buildIncomplete()
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var signatureHash = tx.hashForSignature(0, redeemScript, hashType)
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var redeemScriptSig = bitcoin.script.scriptHash.input.encode([
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
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bitcoin.script.signature.encode(bob.sign(signatureHash), hashType),
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bitcoin.opcodes.OP_FALSE
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], redeemScript)
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tx.setInputScript(0, redeemScriptSig)
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regtestUtils.broadcast(tx.toHex(), function (err) {
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if (err) return done(err)
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regtestUtils.verify({
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txId: tx.getId(),
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address: regtestUtils.RANDOM_ADDRESS,
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vout: 0,
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value: 8e4
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}, done)
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})
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})
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})
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// expiry in the future, {Alice's signature} OP_TRUE
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it('can create (but fail to broadcast via 3PBP) a Transaction where Alice attempts to redeem before the expiry', function (done) {
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this.timeout(30000)
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// two hours from now
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var timeUtc = utcNow() + (3600 * 2)
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var redeemScript = cltvCheckSigOutput(alice, bob, timeUtc)
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var scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
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var address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
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// fund the P2SH(CLTV) address
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regtestUtils.faucet(address, 2e4, function (err, unspent) {
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if (err) return done(err)
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var txb = new bitcoin.TransactionBuilder(regtest)
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txb.setLockTime(timeUtc)
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txb.addInput(unspent.txId, unspent.vout, 0xfffffffe)
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 1e4)
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// {Alice's signature} OP_TRUE
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var tx = txb.buildIncomplete()
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var signatureHash = tx.hashForSignature(0, redeemScript, hashType)
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var redeemScriptSig = bitcoin.script.scriptHash.input.encode([
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
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bitcoin.script.signature.encode(bob.sign(signatureHash), hashType),
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bitcoin.opcodes.OP_TRUE
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], redeemScript)
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tx.setInputScript(0, redeemScriptSig)
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regtestUtils.broadcast(tx.toHex(), function (err) {
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assert.throws(function () {
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if (err) throw err
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}, /Error: 64: non-final/)
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done()
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})
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})
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})
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})
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