bitcoinjs-lib/test/integration/transactions.spec.ts

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import * as assert from 'assert';
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import * as bip32 from 'bip32';
import { describe, it } from 'mocha';
import * as bitcoin from '../..';
import { regtestUtils } from './_regtest';
const rng = require('randombytes');
const regtest = regtestUtils.network;
// See bottom of file for some helper functions used to make the payment objects needed.
describe('bitcoinjs-lib (transactions with psbt)', () => {
it('can create a 1-to-1 Transaction', () => {
const alice = bitcoin.ECPair.fromWIF(
'L2uPYXe17xSTqbCjZvL2DsyXPCbXspvcu5mHLDYUgzdUbZGSKrSr',
);
const psbt = new bitcoin.Psbt();
psbt.setVersion(2); // These are defaults. This line is not needed.
psbt.setLocktime(0); // These are defaults. This line is not needed.
psbt.addInput({
// if hash is string, txid, if hash is Buffer, is reversed compared to txid
hash: '7d067b4a697a09d2c3cff7d4d9506c9955e93bff41bf82d439da7d030382bc3e',
index: 0,
sequence: 0xffffffff, // These are defaults. This line is not needed.
// non-segwit inputs now require passing the whole previous tx as Buffer
nonWitnessUtxo: Buffer.from(
'0200000001f9f34e95b9d5c8abcd20fc5bd4a825d1517be62f0f775e5f36da944d9' +
'452e550000000006b483045022100c86e9a111afc90f64b4904bd609e9eaed80d48' +
'ca17c162b1aca0a788ac3526f002207bb79b60d4fc6526329bf18a77135dc566020' +
'9e761da46e1c2f1152ec013215801210211755115eabf846720f5cb18f248666fec' +
'631e5e1e66009ce3710ceea5b1ad13ffffffff01' +
// value in satoshis (Int64LE) = 0x015f90 = 90000
'905f010000000000' +
// scriptPubkey length
'19' +
// scriptPubkey
'76a9148bbc95d2709c71607c60ee3f097c1217482f518d88ac' +
// locktime
'00000000',
'hex',
),
// // If this input was segwit, instead of nonWitnessUtxo, you would add
// // a witnessUtxo as follows. The scriptPubkey and the value only are needed.
// witnessUtxo: {
// script: Buffer.from(
// '76a9148bbc95d2709c71607c60ee3f097c1217482f518d88ac',
// 'hex',
// ),
// value: 90000,
// },
// Not featured here:
// redeemScript. A Buffer of the redeemScript for P2SH
// witnessScript. A Buffer of the witnessScript for P2WSH
});
psbt.addOutput({
address: '1KRMKfeZcmosxALVYESdPNez1AP1mEtywp',
value: 80000,
});
psbt.signInput(0, alice);
psbt.validateSignaturesOfInput(0);
psbt.finalizeAllInputs();
assert.strictEqual(
psbt.extractTransaction().toHex(),
'02000000013ebc8203037dda39d482bf41ff3be955996c50d9d4f7cfc3d2097a694a7' +
'b067d000000006b483045022100931b6db94aed25d5486884d83fc37160f37f3368c0' +
'd7f48c757112abefec983802205fda64cff98c849577026eb2ce916a50ea70626a766' +
'9f8596dd89b720a26b4d501210365db9da3f8a260078a7e8f8b708a1161468fb2323f' +
'fda5ec16b261ec1056f455ffffffff0180380100000000001976a914ca0d36044e0dc' +
'08a22724efa6f6a07b0ec4c79aa88ac00000000',
);
});
it('can create (and broadcast via 3PBP) a typical Transaction', async () => {
// these are { payment: Payment; keys: ECPair[] }
const alice1 = createPayment('p2pkh');
const alice2 = createPayment('p2pkh');
// give Alice 2 unspent outputs
const inputData1 = await getInputData(
5e4,
alice1.payment,
false,
'noredeem',
);
const inputData2 = await getInputData(
7e4,
alice2.payment,
false,
'noredeem',
);
{
const {
hash, // string of txid or Buffer of tx hash. (txid and hash are reverse order)
index, // the output index of the txo you are spending
nonWitnessUtxo, // the full previous transaction as a Buffer
} = inputData1;
assert.deepStrictEqual({ hash, index, nonWitnessUtxo }, inputData1);
}
// network is only needed if you pass an address to addOutput
// using script (Buffer of scriptPubkey) instead will avoid needed network.
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData1) // alice1 unspent
.addInput(inputData2) // alice2 unspent
.addOutput({
address: 'mwCwTceJvYV27KXBc3NJZys6CjsgsoeHmf',
value: 8e4,
}) // the actual "spend"
.addOutput({
address: alice2.payment.address, // OR script, which is a Buffer.
value: 1e4,
}); // Alice's change
// (in)(5e4 + 7e4) - (out)(8e4 + 1e4) = (fee)3e4 = 30000, this is the miner fee
// Let's show a new feature with PSBT.
// We can have multiple signers sign in parrallel and combine them.
// (this is not necessary, but a nice feature)
// encode to send out to the signers
const psbtBaseText = psbt.toBase64();
// each signer imports
const signer1 = bitcoin.Psbt.fromBase64(psbtBaseText);
const signer2 = bitcoin.Psbt.fromBase64(psbtBaseText);
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// Alice signs each input with the respective private keys
// signInput and signInputAsync are better
// (They take the input index explicitly as the first arg)
signer1.signAllInputs(alice1.keys[0]);
signer2.signAllInputs(alice2.keys[0]);
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// If your signer object's sign method returns a promise, use the following
// await signer2.signAllInputsAsync(alice2.keys[0])
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// encode to send back to combiner (signer 1 and 2 are not near each other)
const s1text = signer1.toBase64();
const s2text = signer2.toBase64();
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const final1 = bitcoin.Psbt.fromBase64(s1text);
const final2 = bitcoin.Psbt.fromBase64(s2text);
// final1.combine(final2) would give the exact same result
psbt.combine(final1, final2);
// Finalizer wants to check all signatures are valid before finalizing.
// If the finalizer wants to check for specific pubkeys, the second arg
// can be passed. See the first multisig example below.
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
assert.strictEqual(psbt.validateSignaturesOfInput(1), true);
// This step it new. Since we separate the signing operation and
// the creation of the scriptSig and witness stack, we are able to
psbt.finalizeAllInputs();
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// build and broadcast our RegTest network
await regtestUtils.broadcast(psbt.extractTransaction().toHex());
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// to build and broadcast to the actual Bitcoin network, see https://github.com/bitcoinjs/bitcoinjs-lib/issues/839
});
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it('can create (and broadcast via 3PBP) a Transaction with an OP_RETURN output', async () => {
const alice1 = createPayment('p2pkh');
const inputData1 = await getInputData(
2e5,
alice1.payment,
false,
'noredeem',
);
const data = Buffer.from('bitcoinjs-lib', 'utf8');
const embed = bitcoin.payments.embed({ data: [data] });
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData1)
.addOutput({
script: embed.output!,
value: 1000,
})
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 1e5,
})
.signInput(0, alice1.keys[0]);
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
psbt.finalizeAllInputs();
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// build and broadcast to the RegTest network
await regtestUtils.broadcast(psbt.extractTransaction().toHex());
});
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it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2MS(2 of 4)) (multisig) input', async () => {
const multisig = createPayment('p2sh-p2ms(2 of 4)');
const inputData1 = await getInputData(2e4, multisig.payment, false, 'p2sh');
{
const {
hash,
index,
nonWitnessUtxo,
redeemScript, // NEW: P2SH needs to give redeemScript when adding an input.
} = inputData1;
assert.deepStrictEqual(
{ hash, index, nonWitnessUtxo, redeemScript },
inputData1,
);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData1)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 1e4,
})
.signInput(0, multisig.keys[0])
.signInput(0, multisig.keys[2]);
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
assert.strictEqual(
psbt.validateSignaturesOfInput(0, multisig.keys[0].publicKey),
true,
);
assert.throws(() => {
psbt.validateSignaturesOfInput(0, multisig.keys[3].publicKey);
}, new RegExp('No signatures for this pubkey'));
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
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// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 1e4,
});
});
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it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2WPKH) input', async () => {
const p2sh = createPayment('p2sh-p2wpkh');
const inputData = await getInputData(5e4, p2sh.payment, true, 'p2sh');
const inputData2 = await getInputData(5e4, p2sh.payment, true, 'p2sh');
{
const {
hash,
index,
witnessUtxo, // NEW: this is an object of the output being spent { script: Buffer; value: Satoshis; }
redeemScript,
} = inputData;
assert.deepStrictEqual(
{ hash, index, witnessUtxo, redeemScript },
inputData,
);
}
const keyPair = p2sh.keys[0];
const outputData = {
script: p2sh.payment.output, // sending to myself for fun
value: 2e4,
};
const outputData2 = {
script: p2sh.payment.output, // sending to myself for fun
value: 7e4,
};
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const tx = new bitcoin.Psbt()
.addInputs([inputData, inputData2])
.addOutputs([outputData, outputData2])
.signAllInputs(keyPair)
.finalizeAllInputs()
.extractTransaction();
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// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: p2sh.payment.address,
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vout: 0,
value: 2e4,
});
});
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it('can create (and broadcast via 3PBP) a Transaction, w/ a P2SH(P2WPKH) input with nonWitnessUtxo', async () => {
// For learning purposes, ignore this test.
// REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
const p2sh = createPayment('p2sh-p2wpkh');
const inputData = await getInputData(5e4, p2sh.payment, false, 'p2sh');
const inputData2 = await getInputData(5e4, p2sh.payment, false, 'p2sh');
const keyPair = p2sh.keys[0];
const outputData = {
script: p2sh.payment.output,
value: 2e4,
};
const outputData2 = {
script: p2sh.payment.output,
value: 7e4,
};
const tx = new bitcoin.Psbt()
.addInputs([inputData, inputData2])
.addOutputs([outputData, outputData2])
.signAllInputs(keyPair)
.finalizeAllInputs()
.extractTransaction();
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: p2sh.payment.address,
vout: 0,
value: 2e4,
});
});
it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WPKH input', async () => {
// the only thing that changes is you don't give a redeemscript for input data
const p2wpkh = createPayment('p2wpkh');
const inputData = await getInputData(5e4, p2wpkh.payment, true, 'noredeem');
{
const { hash, index, witnessUtxo } = inputData;
assert.deepStrictEqual({ hash, index, witnessUtxo }, inputData);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2wpkh.keys[0]);
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
});
it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WPKH input with nonWitnessUtxo', async () => {
// For learning purposes, ignore this test.
// REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
const p2wpkh = createPayment('p2wpkh');
const inputData = await getInputData(
5e4,
p2wpkh.payment,
false,
'noredeem',
);
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2wpkh.keys[0]);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
});
it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WSH(P2PK) input', async () => {
const p2wsh = createPayment('p2wsh-p2pk');
const inputData = await getInputData(5e4, p2wsh.payment, true, 'p2wsh');
{
const {
hash,
index,
witnessUtxo,
witnessScript, // NEW: A Buffer of the witnessScript
} = inputData;
assert.deepStrictEqual(
{ hash, index, witnessUtxo, witnessScript },
inputData,
);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2wsh.keys[0]);
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assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
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// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
});
it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WSH(P2PK) input with nonWitnessUtxo', async () => {
// For learning purposes, ignore this test.
// REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
const p2wsh = createPayment('p2wsh-p2pk');
const inputData = await getInputData(5e4, p2wsh.payment, false, 'p2wsh');
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2wsh.keys[0]);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
});
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it(
'can create (and broadcast via 3PBP) a Transaction, w/ a ' +
'P2SH(P2WSH(P2MS(3 of 4))) (SegWit multisig) input',
async () => {
const p2sh = createPayment('p2sh-p2wsh-p2ms(3 of 4)');
const inputData = await getInputData(
5e4,
p2sh.payment,
true,
'p2sh-p2wsh',
);
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{
const {
hash,
index,
witnessUtxo,
redeemScript,
witnessScript,
} = inputData;
assert.deepStrictEqual(
{ hash, index, witnessUtxo, redeemScript, witnessScript },
inputData,
);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2sh.keys[0])
.signInput(0, p2sh.keys[2])
.signInput(0, p2sh.keys[3]);
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
assert.strictEqual(
psbt.validateSignaturesOfInput(0, p2sh.keys[3].publicKey),
true,
);
assert.throws(() => {
psbt.validateSignaturesOfInput(0, p2sh.keys[1].publicKey);
}, new RegExp('No signatures for this pubkey'));
psbt.finalizeAllInputs();
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const tx = psbt.extractTransaction();
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// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
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await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
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vout: 0,
value: 2e4,
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});
},
);
it(
'can create (and broadcast via 3PBP) a Transaction, w/ a ' +
'P2SH(P2WSH(P2MS(3 of 4))) (SegWit multisig) input with nonWitnessUtxo',
async () => {
// For learning purposes, ignore this test.
// REPEATING ABOVE BUT WITH nonWitnessUtxo by passing false to getInputData
const p2sh = createPayment('p2sh-p2wsh-p2ms(3 of 4)');
const inputData = await getInputData(
5e4,
p2sh.payment,
false,
'p2sh-p2wsh',
);
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2sh.keys[0])
.signInput(0, p2sh.keys[2])
.signInput(0, p2sh.keys[3]);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
},
);
it(
'can create (and broadcast via 3PBP) a Transaction, w/ a ' +
'P2SH(P2MS(2 of 2)) input with nonWitnessUtxo',
async () => {
const myKey = bitcoin.ECPair.makeRandom({ network: regtest });
const myKeys = [
myKey,
bitcoin.ECPair.fromPrivateKey(myKey.privateKey!, { network: regtest }),
];
const p2sh = createPayment('p2sh-p2ms(2 of 2)', myKeys);
const inputData = await getInputData(5e4, p2sh.payment, false, 'p2sh');
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInput(0, p2sh.keys[0]);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
},
);
it('can create (and broadcast via 3PBP) a Transaction, w/ a P2WPKH input using HD', async () => {
const hdRoot = bip32.fromSeed(rng(64));
const masterFingerprint = hdRoot.fingerprint;
const path = "m/84'/0'/0'/0/0";
const childNode = hdRoot.derivePath(path);
const pubkey = childNode.publicKey;
// This information should be added to your input via updateInput
// You can add multiple bip32Derivation objects for multisig, but
// each must have a unique pubkey.
//
// This is useful because as long as you store the masterFingerprint on
// the PSBT Creator's server, you can have the PSBT Creator do the heavy
// lifting with derivation from your m/84'/0'/0' xpub, (deriving only 0/0 )
// and your signer just needs to pass in an HDSigner interface (ie. bip32 library)
const updateData = {
bip32Derivation: [
{
masterFingerprint,
path,
pubkey,
},
],
};
const p2wpkh = createPayment('p2wpkh', [childNode]);
const inputData = await getInputData(5e4, p2wpkh.payment, true, 'noredeem');
{
const { hash, index, witnessUtxo } = inputData;
assert.deepStrictEqual({ hash, index, witnessUtxo }, inputData);
}
// You can add extra attributes for updateData into the addInput(s) object(s)
Object.assign(inputData, updateData);
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
// .updateInput(0, updateData) // if you didn't merge the bip32Derivation with inputData
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4,
})
.signInputHD(0, hdRoot); // must sign with root!!!
assert.strictEqual(psbt.validateSignaturesOfInput(0), true);
assert.strictEqual(
psbt.validateSignaturesOfInput(0, childNode.publicKey),
true,
);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4,
});
});
});
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function createPayment(_type: string, myKeys?: any[], network?: any): any {
network = network || regtest;
const splitType = _type.split('-').reverse();
const isMultisig = splitType[0].slice(0, 4) === 'p2ms';
const keys = myKeys || [];
let m: number | undefined;
if (isMultisig) {
const match = splitType[0].match(/^p2ms\((\d+) of (\d+)\)$/);
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m = parseInt(match![1], 10);
let n = parseInt(match![2], 10);
if (keys.length > 0 && keys.length !== n) {
throw new Error('Need n keys for multisig');
}
while (!myKeys && n > 1) {
keys.push(bitcoin.ECPair.makeRandom({ network }));
n--;
}
}
if (!myKeys) keys.push(bitcoin.ECPair.makeRandom({ network }));
let payment: any;
splitType.forEach(type => {
if (type.slice(0, 4) === 'p2ms') {
payment = bitcoin.payments.p2ms({
m,
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pubkeys: keys.map(key => key.publicKey).sort((a, b) => a.compare(b)),
network,
});
} else if (['p2sh', 'p2wsh'].indexOf(type) > -1) {
payment = (bitcoin.payments as any)[type]({
redeem: payment,
network,
});
} else {
payment = (bitcoin.payments as any)[type]({
pubkey: keys[0].publicKey,
network,
});
}
});
return {
payment,
keys,
};
}
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function getWitnessUtxo(out: any): any {
delete out.address;
out.script = Buffer.from(out.script, 'hex');
return out;
}
async function getInputData(
amount: number,
payment: any,
isSegwit: boolean,
redeemType: string,
2019-09-12 10:35:08 +02:00
): Promise<any> {
const unspent = await regtestUtils.faucetComplex(payment.output, amount);
const utx = await regtestUtils.fetch(unspent.txId);
// for non segwit inputs, you must pass the full transaction buffer
const nonWitnessUtxo = Buffer.from(utx.txHex, 'hex');
// for segwit inputs, you only need the output script and value as an object.
const witnessUtxo = getWitnessUtxo(utx.outs[unspent.vout]);
const mixin = isSegwit ? { witnessUtxo } : { nonWitnessUtxo };
const mixin2: any = {};
switch (redeemType) {
case 'p2sh':
mixin2.redeemScript = payment.redeem.output;
break;
case 'p2wsh':
mixin2.witnessScript = payment.redeem.output;
break;
case 'p2sh-p2wsh':
mixin2.witnessScript = payment.redeem.redeem.output;
mixin2.redeemScript = payment.redeem.output;
break;
}
return {
hash: unspent.txId,
index: unspent.vout,
...mixin,
...mixin2,
};
}