@bitgo-beta/utxo-lib
Version:
Client-side Bitcoin JavaScript library
67 lines • 10.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.UtxoTransactionBuilder = void 0;
const transaction_builder_1 = require("../transaction_builder");
const UtxoTransaction_1 = require("./UtxoTransaction");
class UtxoTransactionBuilder extends transaction_builder_1.TransactionBuilder {
constructor(network, tx) {
super();
this.network = network;
this.__TX = this.createInitialTransaction(network, tx);
}
static newTransactionBuilder(network, tx) {
return new UtxoTransactionBuilder(network, tx);
}
createInitialTransaction(network, tx) {
return new UtxoTransaction_1.UtxoTransaction(network, tx);
}
static fromTransaction(tx, network, prevOutputs) {
const txb = transaction_builder_1.TransactionBuilder.fromTransaction(tx, network, prevOutputs);
const utxb = this.newTransactionBuilder(tx.network, tx);
utxb.__INPUTS = txb.__INPUTS;
if (prevOutputs) {
const txbInputs = utxb.__INPUTS;
if (prevOutputs.length !== txbInputs.length) {
throw new Error(`prevOuts must match txbInput length`);
}
prevOutputs.forEach((o, i) => {
txbInputs[i].value = o.value;
txbInputs[i].prevOutScript = o.script;
});
}
return utxb;
}
get tx() {
return this.__TX;
}
build() {
return super.build();
}
buildIncomplete() {
return super.buildIncomplete();
}
sign(signParams, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
// Regular bitcoin p2sh-p2ms inputs do not include the input amount (value) in the signature and
// thus do not require the parameter `value` to be set.
// For bitcoincash and bitcoinsv p2sh-p2ms inputs, the value parameter *is* required however.
// Since the `value` parameter is not passed to the legacy hashing method, we must store it
// on the transaction input object.
if (typeof signParams === 'number') {
if (typeof witnessValue === 'number' || typeof witnessValue === 'bigint') {
this.tx.ins[signParams].value = witnessValue;
}
return super.sign(signParams, keyPair, redeemScript, hashType, witnessValue, witnessScript);
}
if (signParams.witnessValue !== undefined) {
this.tx.ins[signParams.vin].value = signParams.witnessValue;
}
// When calling the sign method via TxbSignArg, the `value` parameter is actually not permitted
// to be set for p2sh-p2ms transactions.
if (signParams.prevOutScriptType === 'p2sh-p2ms') {
delete signParams.witnessValue;
}
return super.sign(signParams);
}
}
exports.UtxoTransactionBuilder = UtxoTransactionBuilder;
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