/* global describe, it */ var assert = require('assert') var bitcoin = require('../../') var blockchain = require('./_blockchain') var network = bitcoin.networks.testnet var alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', network) var bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', network) describe('bitcoinjs-lib (CLTV)', function () { var hashType = bitcoin.Transaction.SIGHASH_ALL function cltvCheckSigOutput (aQ, bQ, utcSeconds) { return bitcoin.script.compile([ bitcoin.opcodes.OP_IF, bitcoin.script.number.encode(utcSeconds), bitcoin.opcodes.OP_CHECKLOCKTIMEVERIFY, bitcoin.opcodes.OP_DROP, bitcoin.opcodes.OP_ELSE, bQ.getPublicKeyBuffer(), bitcoin.opcodes.OP_CHECKSIGVERIFY, bitcoin.opcodes.OP_ENDIF, aQ.getPublicKeyBuffer(), bitcoin.opcodes.OP_CHECKSIG ]) } function utcNow () { return Math.floor(Date.now() / 1000) } // expiry past, {Alice's signature} OP_TRUE it('where Alice can redeem after the expiry is past', function (done) { this.timeout(30000) // three hours ago var timeUtc = utcNow() - (3600 * 3) var redeemScript = cltvCheckSigOutput(alice, bob, timeUtc) var scriptPubKey = bitcoin.script.scriptHashOutput(bitcoin.crypto.hash160(redeemScript)) var address = bitcoin.address.fromOutputScript(scriptPubKey, network) // fund the P2SH(CLTV) address blockchain.t.faucet(address, 2e4, function (err, unspent) { if (err) return done(err) var tx = new bitcoin.TransactionBuilder(network) tx.setLockTime(timeUtc) tx.addInput(unspent.txId, 0, 0xfffffffe) tx.addOutput(blockchain.t.RETURN, 1e4) var txRaw = tx.buildIncomplete() var signatureHash = txRaw.hashForSignature(0, redeemScript, hashType) // {Alice's signature} OP_TRUE var redeemScriptSig = bitcoin.script.scriptHashInput([ alice.sign(signatureHash).toScriptSignature(hashType), bitcoin.opcodes.OP_TRUE ], redeemScript) txRaw.setInputScript(0, redeemScriptSig) blockchain.t.transactions.propagate(txRaw.toHex(), done) }) }) // expiry ignored, {Bob's signature} {Alice's signature} OP_FALSE it('where Alice and Bob can redeem at any time', function (done) { this.timeout(30000) // two hours ago var timeUtc = utcNow() - (3600 * 2) var redeemScript = cltvCheckSigOutput(alice, bob, timeUtc) var scriptPubKey = bitcoin.script.scriptHashOutput(bitcoin.crypto.hash160(redeemScript)) var address = bitcoin.address.fromOutputScript(scriptPubKey, network) // fund the P2SH(CLTV) address blockchain.t.faucet(address, 2e4, function (err, unspent) { if (err) return done(err) var tx = new bitcoin.TransactionBuilder(network) tx.addInput(unspent.txId, 0, 0xfffffffe) tx.addOutput(blockchain.t.RETURN, 1e4) var txRaw = tx.buildIncomplete() var signatureHash = txRaw.hashForSignature(0, redeemScript, hashType) var redeemScriptSig = bitcoin.script.scriptHashInput([ alice.sign(signatureHash).toScriptSignature(hashType), bob.sign(signatureHash).toScriptSignature(hashType), bitcoin.opcodes.OP_FALSE ], redeemScript) txRaw.setInputScript(0, redeemScriptSig) blockchain.t.transactions.propagate(txRaw.toHex(), done) }) }) // expiry in the future, {Alice's signature} OP_TRUE it('fails when still time-locked', function (done) { this.timeout(30000) // two hours from now var timeUtc = utcNow() + (3600 * 2) var redeemScript = cltvCheckSigOutput(alice, bob, timeUtc) var scriptPubKey = bitcoin.script.scriptHashOutput(bitcoin.crypto.hash160(redeemScript)) var address = bitcoin.address.fromOutputScript(scriptPubKey, network) // fund the P2SH(CLTV) address blockchain.t.faucet(address, 2e4, function (err, unspent) { if (err) return done(err) var tx = new bitcoin.TransactionBuilder(network) tx.setLockTime(timeUtc) tx.addInput(unspent.txId, 0, 0xfffffffe) tx.addOutput(blockchain.t.RETURN, 1e4) var txRaw = tx.buildIncomplete() var signatureHash = txRaw.hashForSignature(0, redeemScript, hashType) // {Alice's signature} OP_TRUE var redeemScriptSig = bitcoin.script.scriptHashInput([ alice.sign(signatureHash).toScriptSignature(hashType), bitcoin.opcodes.OP_TRUE ], redeemScript) txRaw.setInputScript(0, redeemScriptSig) blockchain.t.transactions.propagate(txRaw.toHex(), function (err) { assert.throws(function () { if (err) throw err }, /Error: 64: non-final/) done() }) }) }) })