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Add clone, addInputs, addOutputs

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This commit is contained in:
junderw 2019-07-09 18:03:15 +09:00
parent b8c341dea0
commit 01c7ac39b6
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GPG key ID: B256185D3A971908
4 changed files with 221 additions and 152 deletions
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14
src/psbt.js
View file

@ -95,6 +95,12 @@ class Psbt extends bip174_1.Psbt {
get inputCount() {
return this.inputs.length;
}
clone() {
// TODO: more efficient cloning
const res = Psbt.fromBuffer(this.toBuffer());
res.opts = JSON.parse(JSON.stringify(this.opts));
return res;
}
setMaximumFeeRate(satoshiPerByte) {
check32Bit(satoshiPerByte); // 42.9 BTC per byte IS excessive... so throw
this.opts.maximumFeeRate = satoshiPerByte;
@ -129,6 +135,10 @@ class Psbt extends bip174_1.Psbt {
c.__EXTRACTED_TX = undefined;
return this;
}
addInputs(inputDatas) {
inputDatas.forEach(inputData => this.addInput(inputData));
return this;
}
addInput(inputData) {
checkInputsForPartialSig(this.inputs, 'addInput');
const c = this.__CACHE;
@ -138,6 +148,10 @@ class Psbt extends bip174_1.Psbt {
c.__EXTRACTED_TX = undefined;
return this;
}
addOutputs(outputDatas) {
outputDatas.forEach(outputData => this.addOutput(outputData));
return this;
}
addOutput(outputData) {
checkInputsForPartialSig(this.inputs, 'addOutput');
const { address } = outputData;

305
test/integration/transactions-psbt.js
View file

@ -1,17 +1,19 @@
const { describe, it } = require('mocha')
const assert = require('assert')
const bitcoin = require('../../')
const regtestUtils = require('./_regtest')
const regtest = regtestUtils.network
const { describe, it } = require('mocha');
const assert = require('assert');
const bitcoin = require('../../');
const regtestUtils = require('./_regtest');
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.
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',
@ -47,14 +49,14 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
// },
// Not featured here: redeemScript. A Buffer of the redeemScript
})
});
psbt.addOutput({
address: '1KRMKfeZcmosxALVYESdPNez1AP1mEtywp',
value: 80000
})
psbt.signInput(0, alice)
psbt.validateSignatures(0)
psbt.finalizeAllInputs()
value: 80000,
});
psbt.signInput(0, alice);
psbt.validateSignatures(0);
psbt.finalizeAllInputs();
assert.strictEqual(
psbt.extractTransaction().toHex(),
'02000000013ebc8203037dda39d482bf41ff3be955996c50d9d4f7cfc3d2097a694a7' +
@ -63,24 +65,34 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
'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')
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 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)
} = inputData1;
assert.deepStrictEqual({ hash, index, nonWitnessUtxo }, inputData1);
}
// network is only needed if you pass an address to addOutput
@ -90,12 +102,12 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
.addInput(inputData2) // alice2 unspent
.addOutput({
address: 'mwCwTceJvYV27KXBc3NJZys6CjsgsoeHmf',
value: 8e4
value: 8e4,
}) // the actual "spend"
.addOutput({
address: alice2.payment.address, // OR script, which is a Buffer.
value: 1e4
}) // Alice's change
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.
@ -103,231 +115,248 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
// (this is not necessary, but a nice feature)
// encode to send out to the signers
const psbtBaseText = psbt.toBase64()
const psbtBaseText = psbt.toBase64();
// each signer imports
const signer1 = bitcoin.Psbt.fromBase64(psbtBaseText)
const signer2 = bitcoin.Psbt.fromBase64(psbtBaseText)
const signer1 = bitcoin.Psbt.fromBase64(psbtBaseText);
const signer2 = bitcoin.Psbt.fromBase64(psbtBaseText);
// 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.sign(alice1.keys[0])
signer2.sign(alice2.keys[0])
signer1.sign(alice1.keys[0]);
signer2.sign(alice2.keys[0]);
// If your signer object's sign method returns a promise, use the following
// await signer2.signAsync(alice2.keys[0])
// encode to send back to combiner (signer 1 and 2 are not near each other)
const s1text = signer1.toBase64()
const s2text = signer2.toBase64()
const s1text = signer1.toBase64();
const s2text = signer2.toBase64();
const final1 = bitcoin.Psbt.fromBase64(s1text)
const final2 = bitcoin.Psbt.fromBase64(s2text)
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)
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.validateSignatures(0), true)
assert.strictEqual(psbt.validateSignatures(1), true)
assert.strictEqual(psbt.validateSignatures(0), true);
assert.strictEqual(psbt.validateSignatures(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()
psbt.finalizeAllInputs();
// it returns an array of the success of each input, also a result attribute
// which is true if all array items are true.
// build and broadcast our RegTest network
await regtestUtils.broadcast(psbt.extractTransaction().toHex())
await regtestUtils.broadcast(psbt.extractTransaction().toHex());
// to build and broadcast to the actual Bitcoin network, see https://github.com/bitcoinjs/bitcoinjs-lib/issues/839
})
});
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 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 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
value: 1000,
})
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 1e5
value: 1e5,
})
.signInput(0, alice1.keys[0])
.signInput(0, alice1.keys[0]);
assert.strictEqual(psbt.validateSignatures(0), true)
psbt.finalizeAllInputs()
assert.strictEqual(psbt.validateSignatures(0), true);
psbt.finalizeAllInputs();
// build and broadcast to the RegTest network
await regtestUtils.broadcast(psbt.extractTransaction().toHex())
})
await regtestUtils.broadcast(psbt.extractTransaction().toHex());
});
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 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)
} = inputData1;
assert.deepStrictEqual(
{ hash, index, nonWitnessUtxo, redeemScript },
inputData1,
);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData1)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 1e4
value: 1e4,
})
.signInput(0, multisig.keys[0])
.signInput(0, multisig.keys[2])
.signInput(0, multisig.keys[2]);
assert.strictEqual(psbt.validateSignatures(0), true)
assert.strictEqual(psbt.validateSignatures(0, multisig.keys[0].publicKey), true)
assert.strictEqual(psbt.validateSignatures(0), true);
assert.strictEqual(
psbt.validateSignatures(0, multisig.keys[0].publicKey),
true,
);
assert.throws(() => {
psbt.validateSignatures(0, multisig.keys[3].publicKey)
}, new RegExp('No signatures for this pubkey'))
psbt.finalizeAllInputs()
psbt.validateSignatures(0, multisig.keys[3].publicKey);
}, new RegExp('No signatures for this pubkey'));
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction()
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex())
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 1e4
})
})
value: 1e4,
});
});
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 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)
} = inputData;
assert.deepStrictEqual(
{ hash, index, witnessUtxo, redeemScript },
inputData,
);
}
const keyPair = p2sh.keys[0]
const keyPair = p2sh.keys[0];
const outputData = {
script: p2sh.payment.output, // sending to myself for fun
value: 2e4
}
value: 2e4,
};
const outputData2 = {
script: p2sh.payment.output, // sending to myself for fun
value: 7e4,
};
const tx = new bitcoin.Psbt()
.addInput(inputData)
.addOutput(outputData)
.addInputs([inputData, inputData2])
.addOutputs([outputData, outputData2])
.sign(keyPair)
.finalizeAllInputs()
.extractTransaction()
.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex())
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: p2sh.payment.address,
vout: 0,
value: 2e4
})
})
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 p2wpkh = createPayment('p2wpkh');
const inputData = await getInputData(5e4, p2wpkh.payment, true, 'noredeem');
{
const {
hash,
index,
witnessUtxo,
} = inputData
assert.deepStrictEqual({ hash, index, witnessUtxo }, inputData)
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
value: 2e4,
})
.signInput(0, p2wpkh.keys[0])
.signInput(0, p2wpkh.keys[0]);
assert.strictEqual(psbt.validateSignatures(0), true)
psbt.finalizeAllInputs()
assert.strictEqual(psbt.validateSignatures(0), true);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction()
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex())
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4
})
})
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 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)
} = inputData;
assert.deepStrictEqual(
{ hash, index, witnessUtxo, witnessScript },
inputData,
);
}
const psbt = new bitcoin.Psbt({ network: regtest })
.addInput(inputData)
.addOutput({
address: regtestUtils.RANDOM_ADDRESS,
value: 2e4
value: 2e4,
})
.signInput(0, p2wsh.keys[0])
.signInput(0, p2wsh.keys[0]);
assert.strictEqual(psbt.validateSignatures(0), true)
psbt.finalizeAllInputs()
assert.strictEqual(psbt.validateSignatures(0), true);
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction()
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex())
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4
})
})
value: 2e4,
});
});
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')
const p2sh = createPayment('p2sh-p2wsh-p2ms(3 of 4)');
const inputData = await getInputData(5e4, p2sh.payment, true, 'p2sh-p2wsh');
{
const {
hash,
@ -335,54 +364,60 @@ describe('bitcoinjs-lib (transactions with psbt)', () => {
witnessUtxo,
redeemScript,
witnessScript,
} = inputData
assert.deepStrictEqual({ hash, index, witnessUtxo, redeemScript, witnessScript }, inputData)
} = 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
value: 2e4,
})
.signInput(0, p2sh.keys[0])
.signInput(0, p2sh.keys[2])
.signInput(0, p2sh.keys[3])
.signInput(0, p2sh.keys[3]);
assert.strictEqual(psbt.validateSignatures(0), true)
assert.strictEqual(psbt.validateSignatures(0, p2sh.keys[3].publicKey), true)
assert.strictEqual(psbt.validateSignatures(0), true);
assert.strictEqual(
psbt.validateSignatures(0, p2sh.keys[3].publicKey),
true,
);
assert.throws(() => {
psbt.validateSignatures(0, p2sh.keys[1].publicKey)
}, new RegExp('No signatures for this pubkey'))
psbt.finalizeAllInputs()
psbt.validateSignatures(0, p2sh.keys[1].publicKey);
}, new RegExp('No signatures for this pubkey'));
psbt.finalizeAllInputs();
const tx = psbt.extractTransaction()
const tx = psbt.extractTransaction();
// build and broadcast to the Bitcoin RegTest network
await regtestUtils.broadcast(tx.toHex())
await regtestUtils.broadcast(tx.toHex());
await regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 2e4
})
})
})
value: 2e4,
});
});
});
function createPayment(_type, network) {
network = network || regtest
network = network || regtest;
const splitType = _type.split('-').reverse();
const isMultisig = splitType[0].slice(0, 4) === 'p2ms';
const keys = [];
let m;
if (isMultisig) {
const match = splitType[0].match(/^p2ms\((\d+) of (\d+)\)$/)
m = parseInt(match[1])
let n = parseInt(match[2])
const match = splitType[0].match(/^p2ms\((\d+) of (\d+)\)$/);
m = parseInt(match[1]);
let n = parseInt(match[2]);
while (n > 1) {
keys.push(bitcoin.ECPair.makeRandom({ network }));
n--
n--;
}
}
keys.push(bitcoin.ECPair.makeRandom({ network }));

17
ts_src/psbt.ts
View file

@ -130,6 +130,13 @@ export class Psbt extends PsbtBase {
return this.inputs.length;
}
clone(): Psbt {
// TODO: more efficient cloning
const res = Psbt.fromBuffer(this.toBuffer());
res.opts = JSON.parse(JSON.stringify(this.opts));
return res;
}
setMaximumFeeRate(satoshiPerByte: number): void {
check32Bit(satoshiPerByte); // 42.9 BTC per byte IS excessive... so throw
this.opts.maximumFeeRate = satoshiPerByte;
@ -168,6 +175,11 @@ export class Psbt extends PsbtBase {
return this;
}
addInputs(inputDatas: TransactionInput[]): this {
inputDatas.forEach(inputData => this.addInput(inputData));
return this;
}
addInput(inputData: TransactionInput): this {
checkInputsForPartialSig(this.inputs, 'addInput');
const c = this.__CACHE;
@ -178,6 +190,11 @@ export class Psbt extends PsbtBase {
return this;
}
addOutputs(outputDatas: TransactionOutput[]): this {
outputDatas.forEach(outputData => this.addOutput(outputData));
return this;
}
addOutput(outputData: TransactionOutput): this {
checkInputsForPartialSig(this.inputs, 'addOutput');
const { address } = outputData as any;

3
types/psbt.d.ts vendored
View file

@ -11,11 +11,14 @@ export declare class Psbt extends PsbtBase {
private opts;
constructor(opts?: PsbtOptsOptional);
readonly inputCount: number;
clone(): Psbt;
setMaximumFeeRate(satoshiPerByte: number): void;
setVersion(version: number): this;
setLocktime(locktime: number): this;
setSequence(inputIndex: number, sequence: number): this;
addInputs(inputDatas: TransactionInput[]): this;
addInput(inputData: TransactionInput): this;
addOutputs(outputDatas: TransactionOutput[]): this;
addOutput(outputData: TransactionOutput): this;
addNonWitnessUtxoToInput(inputIndex: number, nonWitnessUtxo: NonWitnessUtxo): this;
extractTransaction(disableFeeCheck?: boolean): Transaction;