mirror of
https://github.com/BlueWallet/BlueWallet.git
synced 2025-03-04 04:13:49 +01:00
REF: bip84 transaction
This commit is contained in:
Overtorment
parent
30c20b9e6c
commit
f7bbf529a2
2 changed files with 96 additions and 66 deletions
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@ -10,11 +10,14 @@ const BigNumber = require('bignumber.js');
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*/
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export class HDSegwitBech32Transaction {
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/**
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* @param txhex string Object initialized with txhex
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* @param wallet {HDSegwitBech32Wallet} If set - a wallet object to which transacton belongs
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* @param txhex {string|null} Object is initialized with txhex
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* @param txid {string|null} If txhex not present - txid whould be present
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* @param wallet {HDSegwitBech32Wallet|null} If set - a wallet object to which transacton belongs
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*/
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constructor(txhex, wallet) {
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constructor(txhex, txid, wallet) {
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if (!txhex && !txid) throw new Error('Bad arguments');
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this._txhex = txhex;
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this._txid = txid;
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if (wallet) {
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if (wallet.type === HDSegwitBech32Wallet.type) {
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@ -25,17 +28,32 @@ export class HDSegwitBech32Transaction {
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}
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}
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this._txDecoded = bitcoin.Transaction.fromHex(this._txhex);
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if (this._txhex) this._txDecoded = bitcoin.Transaction.fromHex(this._txhex);
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this._remoteTx = null;
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}
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/**
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* If only txid present - we fetch hex
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*
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* @returns {Promise<void>}
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* @private
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*/
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async _fetchTxhexAndDecode() {
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let hexes = await BlueElectrum.multiGetTransactionByTxid([this._txid], 10, false);
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this._txhex = hexes[this._txid];
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if (!this._txhex) throw new Error("Transaction can't be found in mempool");
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this._txDecoded = bitcoin.Transaction.fromHex(this._txhex);
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}
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/**
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* Returns max used sequence for this transaction. Next RBF transaction
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* should have this sequence + 1
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*
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* @returns {number}
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* @returns {Promise<number>}
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*/
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getMaxUsedSequence() {
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async getMaxUsedSequence() {
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if (!this._txDecoded) await this._fetchTxhexAndDecode();
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let max = 0;
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for (let inp of this._txDecoded.ins) {
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max = Math.max(inp.sequence, max);
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@ -47,21 +65,22 @@ export class HDSegwitBech32Transaction {
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/**
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* Basic check that Sequence num for this TX is replaceable
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*
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* @returns {boolean}
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* @returns {Promise<boolean>}
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*/
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isSequenceReplaceable() {
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return this.getMaxUsedSequence() < bitcoin.Transaction.DEFAULT_SEQUENCE;
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async isSequenceReplaceable() {
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return (await this.getMaxUsedSequence()) < bitcoin.Transaction.DEFAULT_SEQUENCE;
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}
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/**
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* If internal extended tx data not set - this is a method
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* to fetch and set this data from electrum
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* to fetch and set this data from electrum. Its different data from
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* decoded hex - it contains confirmations etc.
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*
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* @returns {Promise<void>}
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* @private
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*/
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async _fetchRemoteTx() {
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let result = await BlueElectrum.multiGetTransactionByTxid([this._txDecoded.getId()]);
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let result = await BlueElectrum.multiGetTransactionByTxid([this._txid || this._txDecoded.getId()]);
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this._remoteTx = Object.values(result)[0];
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}
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@ -72,13 +91,13 @@ export class HDSegwitBech32Transaction {
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*/
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async getRemoteConfirmationsNum() {
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if (!this._remoteTx) await this._fetchRemoteTx();
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return this._remoteTx.confirmations;
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return this._remoteTx.confirmations || 0; // stupid undefined
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}
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/**
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* Checks that tx belongs to a wallet and also
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* tx value is < 0, which means its a spending transaction
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* definately initiated by us.
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* definately initiated by us, can be RBF'ed.
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*
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* @returns {Promise<boolean>}
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*/
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@ -86,7 +105,7 @@ export class HDSegwitBech32Transaction {
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if (!this._wallet) throw new Error('Wallet required for this method');
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let found = false;
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for (let tx of this._wallet.getTransactions()) {
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if (tx.txid === this._txDecoded.getId()) {
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if (tx.txid === (this._txid || this._txDecoded.getId())) {
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// its our transaction, and its spending transaction, which means we initiated it
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if (tx.value < 0) found = true;
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}
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@ -94,9 +113,33 @@ export class HDSegwitBech32Transaction {
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return found;
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}
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/**
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* Checks that tx belongs to a wallet and also
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* tx value is > 0, which means its a receiving transaction and thus
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* can be CPFP'ed.
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*
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* @returns {Promise<boolean>}
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*/
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async isToUsTransaction() {
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if (!this._wallet) throw new Error('Wallet required for this method');
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let found = false;
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for (let tx of this._wallet.getTransactions()) {
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if (tx.txid === (this._txid || this._txDecoded.getId())) {
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if (tx.value > 0) found = true;
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}
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}
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return found;
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}
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/**
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* Returns all the info about current transaction which is needed to do a replacement TX
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*
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* @returns {Promise<{fee: number, utxos: Array, changeAmount: number, feeRate: number, targets: Array}>}
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*/
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async getInfo() {
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if (!this._wallet) throw new Error('Wallet required for this method');
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if (!this._remoteTx) await this._fetchRemoteTx();
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if (!this._txDecoded) await this._fetchTxhexAndDecode();
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let prevInputs = [];
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for (let inp of this._txDecoded.ins) {
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@ -147,20 +190,17 @@ export class HDSegwitBech32Transaction {
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}
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return { fee, feeRate, targets, changeAmount, utxos };
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// this means...
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// let maxPossibleFee = fee + changeAmount;
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// let maxPossibleFeeRate = Math.floor(maxPossibleFee / (this._txhex.length / 2));
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// console.warn({maxPossibleFeeRate});
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}
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/**
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* Checks if tx has single output and that output belongs to us - that
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* means we already canceled this tx and we can only bump fees. Or plain all outputs belong to us.
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* @returns {boolean}
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* Checks if all outputs belong to us, that
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* means we already canceled this tx and we can only bump fees
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*
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* @returns {Promise<boolean>}
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*/
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canCancelTx() {
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async canCancelTx() {
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if (!this._wallet) throw new Error('Wallet required for this method');
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if (!this._txDecoded) await this._fetchTxhexAndDecode();
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// if theres at least one output we dont own - we can cancel this transaction!
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for (let outp of this._txDecoded.outs) {
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@ -171,8 +211,11 @@ export class HDSegwitBech32Transaction {
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}
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/**
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* @param newFeerate
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* @returns {Promise<{outputs: Array, tx: HDSegwitBech32Transaction, inputs: Array, fee: Number}>}
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* Creates an RBF transaction that can replace previous one and basically cancel it (rewrite
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* output to the one our wallet controls)
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*
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* @param newFeerate {number} Sat/byte. Should be greater than previous tx feerate
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* @returns {Promise<{outputs: Array, tx: Transaction, inputs: Array, fee: Number}>}
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*/
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async createRBFcancelTx(newFeerate) {
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if (!this._wallet) throw new Error('Wallet required for this method');
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@ -188,23 +231,29 @@ export class HDSegwitBech32Transaction {
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[{ address: myAddress }],
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newFeerate,
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/* meaningless in this context */ myAddress,
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this.getMaxUsedSequence() + 1,
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(await this.getMaxUsedSequence()) + 1,
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);
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}
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/**
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* @param newFeerate
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* @returns {Promise<{outputs: Array, tx: HDSegwitBech32Transaction, inputs: Array, fee: Number}>}
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* Creates an RBF transaction that can bumps fee of previous one
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*
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* @param newFeerate {number} Sat/byte
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* @returns {Promise<{outputs: Array, tx: Transaction, inputs: Array, fee: Number}>}
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*/
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async createRBFbumpFee(newFeerate) {
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if (!this._wallet) throw new Error('Wallet required for this method');
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if (!this._remoteTx) await this._fetchRemoteTx();
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let { feeRate, targets, utxos } = await this.getInfo();
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let { feeRate, targets, changeAmount, utxos } = await this.getInfo();
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if (newFeerate <= feeRate) throw new Error('New feerate should be bigger than the old one');
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let myAddress = await this._wallet.getChangeAddressAsync();
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return this._wallet.createTransaction(utxos, targets, newFeerate, myAddress, this.getMaxUsedSequence() + 1);
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if (changeAmount === 0) delete targets[0].value;
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// looks like this was sendMAX transaction (because there was no change), so we cant reuse amount in this
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// target since fee wont change. removing the amount so `createTransaction` will sendMAX correctly with new feeRate
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return this._wallet.createTransaction(utxos, targets, newFeerate, myAddress, (await this.getMaxUsedSequence()) + 1);
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}
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}
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@ -21,17 +21,16 @@ beforeAll(async () => {
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describe('HDSegwitBech32Transaction', () => {
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it('can decode & check sequence', async function() {
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jasmine.DEFAULT_TIMEOUT_INTERVAL = 30 * 1000;
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let T = new HDSegwitBech32Transaction(
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'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',
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);
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assert.strictEqual(T.getMaxUsedSequence(), 0xffffffff);
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assert.strictEqual(T.isSequenceReplaceable(), false);
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let T = new HDSegwitBech32Transaction(null, 'e9ef58baf4cff3ad55913a360c2fa1fd124309c59dcd720cdb172ce46582097b');
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assert.strictEqual(await T.getMaxUsedSequence(), 0xffffffff);
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assert.strictEqual(await T.isSequenceReplaceable(), false);
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// 881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e
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T = new HDSegwitBech32Transaction(
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'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',
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);
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assert.strictEqual(T.getMaxUsedSequence(), 0);
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assert.strictEqual(T.isSequenceReplaceable(), true);
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assert.strictEqual(await T.getMaxUsedSequence(), 0);
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assert.strictEqual(await T.isSequenceReplaceable(), true);
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assert.ok((await T.getRemoteConfirmationsNum()) >= 292);
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});
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@ -48,17 +47,11 @@ describe('HDSegwitBech32Transaction', () => {
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assert.ok(hd.validateMnemonic());
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await hd.fetchTransactions();
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let tt = new HDSegwitBech32Transaction(
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'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',
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hd,
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);
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let tt = new HDSegwitBech32Transaction(null, '881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e', hd);
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assert.ok(await tt.isOurTransaction());
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tt = new HDSegwitBech32Transaction(
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'01000000000101e141f756746932f869c7323d941f26e6a1a6817143b97250a51f8c08510547a901000000171600148ba6d02e74c0a6e000e8b174eb2ed44e5ea211a60000000002400d03000000000016001465eb5c39aa6785f69f292fdb41c282ea7799721ff85c09000000000017a914e286d58e53f9247a4710e51232cce0686f16873c8702473044022009a072e3a920708a63bac6452f5ff74a0e918057bb79f9f0fce72494c7edd5c9022000e430179e9051fe37b6ea8ba538b4af94e120dd70fc30aed4e54d5054bc9f9d0121039a421d5eb7c9de6590ae2a471cb556b60de8c6b056beb907dbdc1f5e6092f58800000000',
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hd,
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);
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tt = new HDSegwitBech32Transaction(null, '89bcff166c39b3831e03257d4bcc1034dd52c18af46a3eb459e72e692a88a2d8', hd);
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assert.ok(!(await tt.isOurTransaction()));
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});
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@ -75,11 +68,7 @@ describe('HDSegwitBech32Transaction', () => {
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await hd.fetchBalance();
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await hd.fetchTransactions();
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// 881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e
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let tt = new HDSegwitBech32Transaction(
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'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',
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hd,
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);
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let tt = new HDSegwitBech32Transaction(null, '881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e', hd);
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let { fee, feeRate, targets, changeAmount, utxos } = await tt.getInfo();
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assert.strictEqual(fee, 4464);
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@ -119,13 +108,9 @@ describe('HDSegwitBech32Transaction', () => {
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await hd.fetchBalance();
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await hd.fetchTransactions();
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// 881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e
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let tt = new HDSegwitBech32Transaction(
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'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',
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hd,
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);
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let tt = new HDSegwitBech32Transaction(null, '881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e', hd);
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assert.strictEqual(tt.canCancelTx(), true);
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assert.strictEqual(await tt.canCancelTx(), true);
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let { tx } = await tt.createRBFcancelTx(15);
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@ -138,8 +123,8 @@ describe('HDSegwitBech32Transaction', () => {
|
|||
let actualFeerate = (108150 + 200000 - createdTx.outs[0].value) / (tx.toHex().length / 2);
|
||||
assert.strictEqual(Math.round(actualFeerate), 15);
|
||||
|
||||
let tt2 = new HDSegwitBech32Transaction(tx.toHex(), hd);
|
||||
assert.strictEqual(tt2.canCancelTx(), false); // newly created cancel tx is not cancellable anymore
|
||||
let tt2 = new HDSegwitBech32Transaction(tx.toHex(), null, hd);
|
||||
assert.strictEqual(await tt2.canCancelTx(), false); // newly created cancel tx is not cancellable anymore
|
||||
});
|
||||
|
||||
it('can do RBF - bumpfees tx', async function() {
|
||||
|
|
@ -154,13 +139,9 @@ describe('HDSegwitBech32Transaction', () => {
|
|||
await hd.fetchBalance();
|
||||
await hd.fetchTransactions();
|
||||
|
||||
// 881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e
|
||||
let tt = new HDSegwitBech32Transaction(
|
||||
'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',
|
||||
hd,
|
||||
);
|
||||
let tt = new HDSegwitBech32Transaction(null, '881c54edd95cbdd1583d6b9148eb35128a47b64a2e67a5368a649d6be960f08e', hd);
|
||||
|
||||
assert.strictEqual(tt.canCancelTx(), true);
|
||||
assert.strictEqual(await tt.canCancelTx(), true);
|
||||
|
||||
let { tx } = await tt.createRBFbumpFee(17);
|
||||
|
||||
|
|
@ -176,7 +157,7 @@ describe('HDSegwitBech32Transaction', () => {
|
|||
let actualFeerate = (108150 + 200000 - (createdTx.outs[0].value + createdTx.outs[1].value)) / (tx.toHex().length / 2);
|
||||
assert.strictEqual(Math.round(actualFeerate), 17);
|
||||
|
||||
let tt2 = new HDSegwitBech32Transaction(tx.toHex(), hd);
|
||||
assert.strictEqual(tt2.canCancelTx(), true); // new tx is still cancellable since we only bumped fees
|
||||
let tt2 = new HDSegwitBech32Transaction(tx.toHex(), null, hd);
|
||||
assert.strictEqual(await tt2.canCancelTx(), true); // new tx is still cancellable since we only bumped fees
|
||||
});
|
||||
});
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue