sairaj mote
parent
57607d242b
commit
1f9f613182
@ -1,379 +1,19 @@
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(function (EXPORTS) { //btcOperator v1.2.0
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(function (EXPORTS) { //btcOperator v1.1.3b
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/* BTC Crypto and API Operator */
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const btcOperator = EXPORTS;
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const SATOSHI_IN_BTC = 1e8;
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const util = btcOperator.util = {};
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util.Sat_to_BTC = value => parseFloat((value / SATOSHI_IN_BTC).toFixed(8));
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util.BTC_to_Sat = value => parseInt(value * SATOSHI_IN_BTC);
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const APIs = btcOperator.APIs = [
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{
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url: 'https://api.blockcypher.com/v1/btc/main/',
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name: 'Blockcypher',
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balance({ addr }) {
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return fetch_api(`addrs/${addr}/balance`, { url: this.url })
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.then(result => util.Sat_to_BTC(result.balance))
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},
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unspent({ addr }) {
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return fetch_api(`addrs/${addr}?unspentOnly=true&includeScript=true`, { url: this.url })
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.then(result => formatUtxos(result.txrefs))
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},
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tx({ txid }) {
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return fetch_api(`txs/${txid}`, { url: this.url })
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.then(result => formatTx(result))
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},
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txHex({ txid }) {
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return fetch_api(`txs/${txid}?includeHex=true`, { url: this.url })
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.then(result => result.hex)
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},
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txs({ addr, before, after }) {
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return fetch_api(`addrs/${addr}/full?limit=50${before ? `&before=${before}` : ''}${after ? `&after=${after}` : ''}`, { url: this.url })
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.then(result => result.txs)
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},
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async block({ id }) {
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try {
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let block = await fetch_api(`blocks/${id}`, { url: this.url })
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return formatBlock(block)
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} catch (e) {
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console.log(e)
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}
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},
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broadcast(rawTxHex) {
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return fetch_api('txs/push', {
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url: this.url,
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({ tx: rawTxHex })
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})
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.then(result => result.hash)
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}
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},
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{
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url: 'https://blockstream.info/api/',
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name: 'Blockstream',
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balance({ addr }) {
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return fetch_api(`address/${addr}/utxo`, { url: this.url })
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.then(result => {
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const balance = result.reduce((t, u) => t + u.value, 0)
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return util.Sat_to_BTC(balance)
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})
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},
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// unspent({ addr }) { // API doesn't return utxo script
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// return fetch_api(`address/${addr}/utxo`, { url: this.url })
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// .then(result => formatUtxos(result))
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// },
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tx({ txid }) {
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return fetch_api(`tx/${txid}`, { url: this.url })
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.then(result => formatTx(result))
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},
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txHex({ txid }) {
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return fetch_api(`tx/${txid}/hex`, { url: this.url, asJson: false })
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},
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txs({ addr, before, after }) {
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return fetch_api(`address/${addr}/txs${before ? `?before=${before}` : ''}${after ? `?after=${after}` : ''}`, { url: this.url })
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},
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async block({ id }) {
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// if id is hex string then it is block hash
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try {
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let blockHash = id
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if (!/^[0-9a-f]{64}$/i.test(id))
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blockHash = await fetch_api(`block-height/${id}`, { url: this.url, asJson: false })
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const block = await fetch_api(`block/${blockHash}`, { url: this.url })
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return formatBlock(block)
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} catch (e) {
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console.error(e)
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}
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},
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broadcast(rawTxHex) {
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return fetch_api('tx', {
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url: this.url,
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({ tx: rawTxHex })
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}, { asJson: false })
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}
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},
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{
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url: 'https://mempool.space/api/',
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name: 'Mempool',
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balance({ addr }) {
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return fetch_api(`address/${addr}`, { url: this.url })
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.then(result => util.Sat_to_BTC(result.chain_stats.funded_txo_sum - result.chain_stats.spent_txo_sum))
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},
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// unspent({ addr }) { // API doesn't return utxo script
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// return fetch_api(`address/${addr}/utxo`, { url: this.url })
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// .then(result => formatUtxos(result))
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// },
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tx({ txid }) {
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return fetch_api(`tx/${txid}`, { url: this.url })
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.then(result => formatTx(result))
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},
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txHex({ txid }) {
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return fetch_api(`tx/${txid}/hex`, { url: this.url, asJson: false })
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},
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txs({ addr, before, after }) {
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return fetch_api(`address/${addr}/txs${before ? `?before=${before}` : ''}${after ? `?after=${after}` : ''}`, { url: this.url })
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},
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async block({ id }) {
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// if id is hex string then it is block hash
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try {
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let blockHash = id
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if (!/^[0-9a-f]{64}$/i.test(id))
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blockHash = await fetch_api(`block-height/${id}`, { url: this.url, asJson: false })
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const block = await fetch_api(`block/${blockHash}`, { url: this.url })
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return formatBlock(block)
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} catch (e) {
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console.error(e)
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}
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},
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broadcast(rawTxHex) {
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return fetch_api('tx', {
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url: this.url,
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({ tx: rawTxHex })
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}, { asJson: false })
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}
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},
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{
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url: 'https://blockchain.info/',
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name: 'Blockchain',
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balance({ addr }) {
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return fetch_api(`q/addressbalance/${addr}`, { url: this.url })
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.then(result => util.Sat_to_BTC(result))
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},
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unspent({ addr }) {
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return fetch_api(`unspent?active=${addr}`, { url: this.url })
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.then(result => formatUtxos(result.unspent_outputs))
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},
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tx({ txid }) {
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return fetch_api(`rawtx/${txid}`, { url: this.url })
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.then(result => formatTx(result))
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},
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txHex({ txid }) {
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return fetch_api(`rawtx/${txid}?format=hex`, { url: this.url, asJson: false })
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},
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txs({ addr, before, after }) {
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return fetch_api(`rawaddr/${addr}${before ? `?before=${before}` : ''}${after ? `?after=${after}` : ''}`, { url: this.url })
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.then(result => result.txs)
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},
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async block({ id }) {
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try {
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let block
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// if id is hex string then it is block hash
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if (/^[0-9a-f]{64}$/i.test(id))
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block = await fetch_api(`rawblock/${id}`, { url: this.url })
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else {
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const result = await fetch_api(`block-height/${id}?format=json`, { url: this.url })
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block = result.blocks[0]
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}
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return formatBlock(block)
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} catch (e) {
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console.error(e)
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}
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},
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async blockTxs({ id }) {
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try {
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let block
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// if id is hex string then it is block hash
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if (/^[0-9a-f]{64}$/i.test(id))
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block = await fetch_api(`rawblock/${id}`, { url: this.url })
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else {
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const result = await fetch_api(`block-height/${id}?format=json`, { url: this.url })
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block = result.blocks[0]
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}
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return block.tx
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} catch (e) {
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console.error(e)
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}
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},
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broadcast(rawTxHex) {
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return fetch_api('pushtx', {
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url: this.url,
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded'
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},
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body: "tx=" + rawTxHex
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})
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}
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}
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]
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btcOperator.util.format = {} // functions to homogenize API results
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const formatBlock = btcOperator.util.format.block = async (block) => {
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try {
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const { height, hash, id, time, timestamp, mrkl_root, merkle_root, prev_block, next_block, size } = block;
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const details = {
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height,
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hash: hash || id,
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time: (time || timestamp) * 1000,
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merkle_root: merkle_root || mrkl_root,
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size,
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}
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if (prev_block)
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details.prev_block = prev_block
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if (next_block)
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details.next_block = next_block[0]
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return details
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} catch (e) {
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console.error(e)
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}
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}
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const formatUtxos = btcOperator.util.format.utxos = async (utxos) => {
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try {
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return utxos.map(utxo => {
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const { tx_hash, tx_hash_big_endian, txid, tx_output_n, vout, value, script, confirmations, status: { confirmed } = {} } = utxo;
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return {
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confirmations: confirmations || confirmed,
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tx_hash_big_endian: tx_hash_big_endian || tx_hash || txid,
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tx_output_n: tx_output_n || vout,
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value,
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script
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}
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})
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} catch (e) {
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console.error(e)
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}
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}
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const formatTx = btcOperator.util.format.tx = async (tx, addressOfTx) => {
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try {
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const { txid, hash, time, block_height, fee, fees, received,
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confirmed, size, double_spend, block_hash, confirmations,
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status: { block_height: statusBlockHeight, block_hash: statusBlockHash } = {}
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} = tx;
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const inputs = tx.vin || tx.inputs;
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const outputs = tx.vout || tx.outputs || tx.out;
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return {
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hash: hash || txid,
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size: size,
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fee: fee || fees,
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double_spend,
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time: (time * 1000) || new Date(confirmed || received).getTime(),
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block_height: block_height || statusBlockHeight,
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block_hash: block_hash || statusBlockHash,
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confirmations,
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inputs: inputs.map(input => {
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return {
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index: input.n || input.output_index || input.vout,
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prev_out: {
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addr: input.prev_out?.addr || input.addresses?.[0] || input.prev_out?.address || input.addr,
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value: input.prev_out?.value || input.output_value,
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},
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}
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}),
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out: outputs.map(output => {
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return {
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addr: output.scriptpubkey_address || output.addresses?.[0] || output.scriptpubkey_address || output.addr,
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value: output.value || output.scriptpubkey_value,
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}
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})
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}
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} catch (e) {
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console.error(e)
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}
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}
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const multiApi = btcOperator.multiApi = (fnName, { index = 0, ...args } = {}) => {
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return new Promise((resolve, reject) => {
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if (index >= APIs.length)
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return reject("All APIs failed");
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if (!APIs[index][fnName] || APIs[index].coolDownTime && APIs[index].coolDownTime > new Date().getTime())
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return multiApi(fnName, { index: index + 1, ...args })
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.then(result => resolve(result))
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.catch(error => reject(error))
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APIs[index][fnName](args)
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.then(result => resolve(result))
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.catch(error => {
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// if failed add a cool down and try next API
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console.debug(error);
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APIs[index].coolDownTime = new Date().getTime() + 1000 * 60 * 10; // 10 minutes
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multiApi(fnName, { index: index + 1, ...args })
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.then(result => resolve(result))
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.catch(error => reject(error))
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})
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})
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}
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function parseTx(tx, maddressOfTx) {
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const { txid, hash, time, block_height, inputs, outputs, out, vin, vout, fee, fees, received, confirmed, status: { block_height: statusBlockHeight } = {} } = tx;
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let parsedTx = {
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txid: hash || txid,
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time: (time * 1000) || new Date(confirmed || received).getTime(),
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block: block_height || statusBlockHeight,
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}
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//sender list
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parsedTx.tx_senders = {};
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(inputs || vin).forEach(i => {
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const address = i.prev_out?.addr || i.addresses?.[0] || i.prev_out?.address || i.addr;
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const value = i.prev_out?.value || i.output_value;
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if (address in parsedTx.tx_senders)
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parsedTx.tx_senders[address] += value;
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else parsedTx.tx_senders[address] = value;
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});
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parsedTx.tx_input_value = 0;
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for (let senderAddr in parsedTx.tx_senders) {
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let val = parsedTx.tx_senders[senderAddr];
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parsedTx.tx_senders[senderAddr] = util.Sat_to_BTC(val);
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parsedTx.tx_input_value += val;
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}
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parsedTx.tx_input_value = util.Sat_to_BTC(parsedTx.tx_input_value);
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//receiver list
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parsedTx.tx_receivers = {};
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(outputs || out || vout).forEach(o => {
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const address = o.scriptpubkey_address || o.addresses?.[0] || o.scriptpubkey_address || o.addr;
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const value = o.value || o.scriptpubkey_value;
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if (address in parsedTx.tx_receivers)
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parsedTx.tx_receivers[address] += value;
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else parsedTx.tx_receivers[address] = value;
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});
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parsedTx.tx_output_value = 0;
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for (let receiverAddr in parsedTx.tx_receivers) {
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let val = parsedTx.tx_receivers[receiverAddr];
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parsedTx.tx_receivers[receiverAddr] = util.Sat_to_BTC(val);
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parsedTx.tx_output_value += val;
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}
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parsedTx.tx_output_value = util.Sat_to_BTC(parsedTx.tx_output_value);
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// tx fee
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parsedTx.tx_fee = util.Sat_to_BTC(fee || fees || (parsedTx.tx_input_value - parsedTx.tx_output_value));
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//detect tx type (in, out, self)
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if (Object.keys(parsedTx.tx_receivers).length === 1 && Object.keys(parsedTx.tx_senders).length === 1 && Object.keys(parsedTx.tx_senders)[0] === Object.keys(parsedTx.tx_receivers)[0]) {
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parsedTx.type = 'self';
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parsedTx.amount = parsedTx.tx_receivers[maddressOfTx];
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parsedTx.address = maddressOfTx;
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} else if (maddressOfTx in parsedTx.tx_senders && Object.keys(parsedTx.tx_receivers).some(addr => addr !== maddressOfTx)) {
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parsedTx.type = 'out';
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parsedTx.receiver = Object.keys(parsedTx.tx_receivers).filter(addr => addr != maddressOfTx);
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parsedTx.amount = parsedTx.receiver.reduce((t, addr) => t + parsedTx.tx_receivers[addr], 0) + parsedTx.tx_fee;
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} else {
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parsedTx.type = 'in';
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parsedTx.sender = Object.keys(parsedTx.tx_senders).filter(addr => addr != maddressOfTx);
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parsedTx.amount = parsedTx.tx_receivers[maddressOfTx];
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}
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return parsedTx;
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}
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//This library uses API provided by chain.so (https://chain.so/)
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const URL = "https://blockchain.info/";
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const DUST_AMT = 546,
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MIN_FEE_UPDATE = 219;
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const fetch_api = btcOperator.fetch = function (api, { asJson = true, url = 'https://blockchain.info/' } = {}) {
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const fetch_api = btcOperator.fetch = function (api, json_res = true) {
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return new Promise((resolve, reject) => {
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console.debug(url + api);
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fetch(url + api).then(response => {
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console.debug(URL + api);
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fetch(URL + api).then(response => {
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if (response.ok) {
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(asJson ? response.json() : response.text())
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(json_res ? response.json() : response.text())
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.then(result => resolve(result))
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.catch(error => reject(error))
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} else {
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@ -385,6 +25,13 @@
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})
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};
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const SATOSHI_IN_BTC = 1e8;
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const util = btcOperator.util = {};
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util.Sat_to_BTC = value => parseFloat((value / SATOSHI_IN_BTC).toFixed(8));
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util.BTC_to_Sat = value => parseInt(value * SATOSHI_IN_BTC);
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function get_fee_rate() {
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return new Promise((resolve, reject) => {
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fetch('https://api.blockchain.info/mempool/fees').then(response => {
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@ -399,7 +46,6 @@
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}
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const broadcastTx = btcOperator.broadcastTx = rawTxHex => new Promise((resolve, reject) => {
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console.log('txHex:', rawTxHex)
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let url = 'https://coinb.in/api/?uid=1&key=12345678901234567890123456789012&setmodule=bitcoin&request=sendrawtransaction';
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fetch(url, {
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method: 'POST',
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@ -418,12 +64,7 @@
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let txid = resultText.match(/<txid>.*<\/txid>/).pop().replace('<txid>', '').replace('</txid>', '');
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resolve(txid);
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} else if (r == '0') {
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let error
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if (resultText.includes('<message>')) {
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error = resultText.match(/<message>.*<\/message>/).pop().replace('<message>', '').replace('</message>', '');
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} else {
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error = resultText.match(/<response>.*<\/response>/).pop().replace('<response>', '').replace('</response>', '');
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}
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let error = resultText.match(/<response>.*<\/response>/).pop().replace('<response>', '').replace('</response>', '');
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||||
reject(decodeURIComponent(error.replace(/\+/g, " ")));
|
||||
} else reject(resultText);
|
||||
}
|
||||
@ -451,9 +92,6 @@
|
||||
},
|
||||
bech32Address: {
|
||||
value: key => coinjs.bech32Address(btcOperator.pubkey(key)).address
|
||||
},
|
||||
bech32mAddress: {
|
||||
value: key => segwit_addr.encode("bc", 1, key)
|
||||
}
|
||||
});
|
||||
|
||||
@ -469,8 +107,6 @@
|
||||
return btcOperator.segwitAddress(key) === addr;
|
||||
case "bech32":
|
||||
return btcOperator.bech32Address(key) === addr;
|
||||
case "bech32m":
|
||||
return btcOperator.bech32mAddress(key) === addr; // Key is a byte array of 32 bytes
|
||||
default:
|
||||
return null;
|
||||
}
|
||||
@ -480,7 +116,7 @@
|
||||
if (!addr)
|
||||
return undefined;
|
||||
let type = coinjs.addressDecode(addr).type;
|
||||
if (["standard", "multisig", "bech32", "multisigBech32", "bech32m"].includes(type))
|
||||
if (["standard", "multisig", "bech32", "multisigBech32"].includes(type))
|
||||
return type;
|
||||
else
|
||||
return false;
|
||||
@ -626,11 +262,10 @@
|
||||
}
|
||||
|
||||
//BTC blockchain APIs
|
||||
|
||||
btcOperator.getBalance = addr => new Promise((resolve, reject) => {
|
||||
if (!validateAddress(addr))
|
||||
return reject("Invalid address");
|
||||
multiApi('balance', { addr })
|
||||
.then(result => resolve(result))
|
||||
fetch_api(`q/addressbalance/${addr}`)
|
||||
.then(result => resolve(util.Sat_to_BTC(result)))
|
||||
.catch(error => reject(error))
|
||||
});
|
||||
|
||||
@ -646,7 +281,6 @@
|
||||
BECH32_OUTPUT_SIZE = 23,
|
||||
BECH32_MULTISIG_OUTPUT_SIZE = 34,
|
||||
SEGWIT_OUTPUT_SIZE = 23;
|
||||
BECH32M_OUTPUT_SIZE = 35; // Check this later
|
||||
|
||||
function _redeemScript(addr, key) {
|
||||
let decode = coinjs.addressDecode(addr);
|
||||
@ -657,15 +291,10 @@
|
||||
return key ? coinjs.segwitAddress(btcOperator.pubkey(key)).redeemscript : null;
|
||||
case "bech32":
|
||||
return decode.redeemscript;
|
||||
case "'multisigBech32":
|
||||
return decode.redeemscript; //Multisig-edit-fee-change1
|
||||
case "bech32m":
|
||||
return decode.outstring; //Maybe the redeemscript will come when input processing happens for bech32m
|
||||
default:
|
||||
return null;
|
||||
}
|
||||
}
|
||||
btcOperator._redeemScript = _redeemScript;
|
||||
|
||||
function _sizePerInput(addr, rs) {
|
||||
switch (coinjs.addressDecode(addr).type) {
|
||||
@ -699,8 +328,6 @@
|
||||
return BASE_OUTPUT_SIZE + BECH32_MULTISIG_OUTPUT_SIZE;
|
||||
case "multisig":
|
||||
return BASE_OUTPUT_SIZE + SEGWIT_OUTPUT_SIZE;
|
||||
case "bech32m":
|
||||
return BASE_OUTPUT_SIZE + BECH32M_OUTPUT_SIZE;
|
||||
default:
|
||||
return null;
|
||||
}
|
||||
@ -752,14 +379,13 @@
|
||||
//return
|
||||
return parameters;
|
||||
}
|
||||
btcOperator.validateTxParameters = validateTxParameters;
|
||||
|
||||
function createTransaction(senders, redeemScripts, receivers, amounts, fee, change_address, fee_from_receiver, allowUnconfirmedUtxos = false) {
|
||||
function createTransaction(senders, redeemScripts, receivers, amounts, fee, change_address, fee_from_receiver) {
|
||||
return new Promise((resolve, reject) => {
|
||||
let total_amount = parseFloat(amounts.reduce((t, a) => t + a, 0).toFixed(8));
|
||||
const tx = coinjs.transaction();
|
||||
let output_size = addOutputs(tx, receivers, amounts, change_address);
|
||||
addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver, allowUnconfirmedUtxos).then(result => {
|
||||
addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver).then(result => {
|
||||
if (result.change_amount > 0 && result.change_amount > result.fee) //add change amount if any (ignore dust change)
|
||||
tx.outs[tx.outs.length - 1].value = util.BTC_to_Sat(result.change_amount); //values are in satoshi
|
||||
if (fee_from_receiver) { //deduce fee from receivers if fee_from_receiver
|
||||
@ -791,12 +417,11 @@
|
||||
}).catch(error => reject(error))
|
||||
})
|
||||
}
|
||||
btcOperator.createTransaction = createTransaction;
|
||||
|
||||
function addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver, allowUnconfirmedUtxos = false) {
|
||||
function addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (fee !== null) {
|
||||
addUTXOs(tx, senders, redeemScripts, fee_from_receiver ? total_amount : total_amount + fee, false, { allowUnconfirmedUtxos }).then(result => {
|
||||
addUTXOs(tx, senders, redeemScripts, fee_from_receiver ? total_amount : total_amount + fee, false).then(result => {
|
||||
result.fee = fee;
|
||||
resolve(result);
|
||||
}).catch(error => reject(error))
|
||||
@ -805,8 +430,8 @@
|
||||
let net_fee = BASE_TX_SIZE * fee_rate;
|
||||
net_fee += (output_size * fee_rate);
|
||||
(fee_from_receiver ?
|
||||
addUTXOs(tx, senders, redeemScripts, total_amount, false, { allowUnconfirmedUtxos }) :
|
||||
addUTXOs(tx, senders, redeemScripts, total_amount + net_fee, fee_rate, { allowUnconfirmedUtxos })
|
||||
addUTXOs(tx, senders, redeemScripts, total_amount, false) :
|
||||
addUTXOs(tx, senders, redeemScripts, total_amount + net_fee, fee_rate)
|
||||
).then(result => {
|
||||
result.fee = parseFloat((net_fee + (result.input_size * fee_rate)).toFixed(8));
|
||||
result.fee_rate = fee_rate;
|
||||
@ -816,9 +441,8 @@
|
||||
}
|
||||
})
|
||||
}
|
||||
btcOperator.addInputs = addInputs;
|
||||
|
||||
function addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args = { allowUnconfirmedUtxos: false }) {
|
||||
function addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args = {}) {
|
||||
return new Promise((resolve, reject) => {
|
||||
required_amount = parseFloat(required_amount.toFixed(8));
|
||||
if (typeof rec_args.n === "undefined") {
|
||||
@ -832,19 +456,17 @@
|
||||
input_amount: rec_args.input_amount,
|
||||
change_amount: required_amount * -1 //required_amount will be -ve of change_amount
|
||||
});
|
||||
else if (rec_args.n >= senders.length) {
|
||||
else if (rec_args.n >= senders.length)
|
||||
return reject("Insufficient Balance");
|
||||
}
|
||||
let addr = senders[rec_args.n],
|
||||
rs = redeemScripts[rec_args.n];
|
||||
let addr_type = coinjs.addressDecode(addr).type;
|
||||
let size_per_input = _sizePerInput(addr, rs);
|
||||
multiApi('unspent', { addr }).then(utxos => {
|
||||
fetch_api(`unspent?active=${addr}`).then(result => {
|
||||
let utxos = result.unspent_outputs;
|
||||
//console.debug("add-utxo", addr, rs, required_amount, utxos);
|
||||
for (let i = 0; i < utxos.length && required_amount > 0; i++) {
|
||||
if (utxos.length === 1 && rec_args.allowUnconfirmedUtxos) {
|
||||
console.log('allowing unconfirmed utxos')
|
||||
} else if (!utxos[i].confirmations) //ignore unconfirmed utxo
|
||||
if (!utxos[i].confirmations) //ignore unconfirmed utxo
|
||||
continue;
|
||||
var script;
|
||||
if (!rs || !rs.length) //legacy script
|
||||
@ -873,7 +495,6 @@
|
||||
}).catch(error => reject(error))
|
||||
})
|
||||
}
|
||||
btcOperator.addUTXOs = addUTXOs;
|
||||
|
||||
function addOutputs(tx, receivers, amounts, change_address) {
|
||||
let size = 0;
|
||||
@ -885,7 +506,43 @@
|
||||
size += _sizePerOutput(change_address);
|
||||
return size;
|
||||
}
|
||||
btcOperator.addOutputs = addOutputs;
|
||||
|
||||
/*
|
||||
function autoFeeCalc(tx) {
|
||||
return new Promise((resolve, reject) => {
|
||||
get_fee_rate().then(fee_rate => {
|
||||
let tx_size = tx.size();
|
||||
for (var i = 0; i < this.ins.length; i++)
|
||||
switch (tx.extractScriptKey(i).type) {
|
||||
case 'scriptpubkey':
|
||||
tx_size += SIGN_SIZE;
|
||||
break;
|
||||
case 'segwit':
|
||||
case 'multisig':
|
||||
tx_size += SIGN_SIZE * 0.25;
|
||||
break;
|
||||
default:
|
||||
console.warn('Unknown script-type');
|
||||
tx_size += SIGN_SIZE;
|
||||
}
|
||||
resolve(tx_size * fee_rate);
|
||||
}).catch(error => reject(error))
|
||||
})
|
||||
}
|
||||
|
||||
function editFee(tx, current_fee, target_fee, index = -1) {
|
||||
//values are in satoshi
|
||||
index = parseInt(index >= 0 ? index : tx.outs.length - index);
|
||||
if (index < 0 || index >= tx.outs.length)
|
||||
throw "Invalid index";
|
||||
let edit_value = parseInt(current_fee - target_fee), //rip of any decimal places
|
||||
current_value = tx.outs[index].value; //could be BigInterger
|
||||
if (edit_value < 0 && edit_value > current_value)
|
||||
throw "Insufficient value at vout";
|
||||
tx.outs[index].value = current_value instanceof BigInteger ?
|
||||
current_value.add(new BigInteger('' + edit_value)) : parseInt(current_value + edit_value);
|
||||
}
|
||||
*/
|
||||
|
||||
function tx_fetch_for_editing(tx) {
|
||||
return new Promise((resolve, reject) => {
|
||||
@ -896,19 +553,7 @@
|
||||
} else resolve(deserializeTx(tx));
|
||||
})
|
||||
}
|
||||
btcOperator.tx_fetch_for_editing = tx_fetch_for_editing;
|
||||
|
||||
const extractLastHexStrings = btcOperator.extractLastHexStrings = function (arr) {
|
||||
const result = [];
|
||||
for (let i = 0; i < arr.length; i++) {
|
||||
const innerArray = arr[i];
|
||||
if (innerArray.length > 0) {
|
||||
const lastHexString = innerArray[innerArray.length - 1];
|
||||
result.push(lastHexString);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
btcOperator.editFee = function (tx_hex, new_fee, private_keys, change_only = true) {
|
||||
return new Promise((resolve, reject) => {
|
||||
@ -999,118 +644,10 @@
|
||||
})
|
||||
}
|
||||
|
||||
btcOperator.editFee_corewallet = function (tx_hex, new_fee, private_keys, change_only = true) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (!Array.isArray(private_keys))
|
||||
private_keys = [private_keys];
|
||||
tx_fetch_for_editing(tx_hex).then(tx => {
|
||||
parseTransaction(tx).then(tx_parsed => {
|
||||
if (tx_parsed.fee >= new_fee)
|
||||
return reject("Fees can only be increased");
|
||||
|
||||
//editable addresses in output values (for fee increase)
|
||||
var edit_output_address = new Set();
|
||||
if (change_only === true) //allow only change values (ie, sender address) to be edited to inc fee
|
||||
tx_parsed.inputs.forEach(inp => edit_output_address.add(inp.address));
|
||||
else if (change_only === false) //allow all output values to be edited
|
||||
tx_parsed.outputs.forEach(out => edit_output_address.add(out.address));
|
||||
else if (typeof change_only == 'string') // allow only given receiver id output to be edited
|
||||
edit_output_address.add(change_only);
|
||||
else if (Array.isArray(change_only)) //allow only given set of receiver id outputs to be edited
|
||||
change_only.forEach(id => edit_output_address.add(id));
|
||||
|
||||
//edit output values to increase fee
|
||||
let inc_fee = util.BTC_to_Sat(new_fee - tx_parsed.fee);
|
||||
if (inc_fee < MIN_FEE_UPDATE)
|
||||
return reject(`Insufficient additional fee. Minimum increment: ${MIN_FEE_UPDATE}`);
|
||||
for (let i = tx.outs.length - 1; i >= 0 && inc_fee > 0; i--) //reduce in reverse order
|
||||
if (edit_output_address.has(tx_parsed.outputs[i].address)) {
|
||||
let current_value = tx.outs[i].value;
|
||||
if (current_value instanceof BigInteger) //convert BigInteger class to inv value
|
||||
current_value = current_value.intValue();
|
||||
//edit the value as required
|
||||
if (current_value > inc_fee) {
|
||||
tx.outs[i].value = current_value - inc_fee;
|
||||
inc_fee = 0;
|
||||
} else {
|
||||
inc_fee -= current_value;
|
||||
tx.outs[i].value = 0;
|
||||
}
|
||||
}
|
||||
if (inc_fee > 0) {
|
||||
let max_possible_fee = util.BTC_to_Sat(new_fee) - inc_fee; //in satoshi
|
||||
return reject(`Insufficient output values to increase fee. Maximum fee possible: ${util.Sat_to_BTC(max_possible_fee)}`);
|
||||
}
|
||||
tx.outs = tx.outs.filter(o => o.value >= DUST_AMT); //remove all output with value less than DUST amount
|
||||
|
||||
//remove existing signatures and reset the scripts
|
||||
let wif_keys = [];
|
||||
let witness_position = 0;
|
||||
for (let i in tx.ins) {
|
||||
var addr = tx_parsed.inputs[i].address,
|
||||
value = util.BTC_to_Sat(tx_parsed.inputs[i].value);
|
||||
let addr_decode = coinjs.addressDecode(addr);
|
||||
|
||||
//find the correct key for addr
|
||||
var privKey = private_keys.find(pk => verifyKey(addr, pk));
|
||||
if (!privKey)
|
||||
return reject(`Private key missing for ${addr}`);
|
||||
//find redeemScript (if any)
|
||||
const rs = _redeemScript(addr, privKey);
|
||||
rs === false ? wif_keys.unshift(privKey) : wif_keys.push(privKey); //sorting private-keys (wif)
|
||||
//reset the script for re-signing
|
||||
var script;
|
||||
if (!rs || !rs.length) {
|
||||
//legacy script (derive from address)
|
||||
let s = coinjs.script();
|
||||
s.writeOp(118); //OP_DUP
|
||||
s.writeOp(169); //OP_HASH160
|
||||
s.writeBytes(addr_decode.bytes);
|
||||
s.writeOp(136); //OP_EQUALVERIFY
|
||||
s.writeOp(172); //OP_CHECKSIG
|
||||
script = Crypto.util.bytesToHex(s.buffer);
|
||||
} else if (((rs.match(/^00/) && rs.length == 44)) || (rs.length == 40 && rs.match(/^[a-f0-9]+$/gi))) {
|
||||
//redeemScript for segwit/bech32
|
||||
let s = coinjs.script();
|
||||
s.writeBytes(Crypto.util.hexToBytes(rs));
|
||||
s.writeOp(0);
|
||||
s.writeBytes(coinjs.numToBytes(value.toFixed(0), 8));
|
||||
script = Crypto.util.bytesToHex(s.buffer);
|
||||
if (addr_decode == "bech32") { witness_position = witness_position + 1; } //bech32 has witness
|
||||
} else if (addr_decode.type === 'multisigBech32') {
|
||||
var rs_array = [];
|
||||
rs_array = btcOperator.extractLastHexStrings(tx.witness);
|
||||
let redeemScript = rs_array[witness_position];
|
||||
witness_position = witness_position + 1;
|
||||
|
||||
//redeemScript multisig (bech32)
|
||||
let s = coinjs.script();
|
||||
s.writeBytes(Crypto.util.hexToBytes(redeemScript));
|
||||
s.writeOp(0);
|
||||
s.writeBytes(coinjs.numToBytes(value.toFixed(0), 8));
|
||||
script = Crypto.util.bytesToHex(s.buffer);
|
||||
} else //redeemScript for multisig (segwit)
|
||||
script = rs;
|
||||
tx.ins[i].script = coinjs.script(script);
|
||||
}
|
||||
tx.witness = false; //remove all witness signatures
|
||||
console.debug("Unsigned:", tx.serialize());
|
||||
//re-sign the transaction
|
||||
new Set(wif_keys).forEach(key => tx.sign(key, 1 /*sighashtype*/)); //Sign the tx using private key WIF
|
||||
if (btcOperator.checkSigned(tx)) {
|
||||
resolve(tx.serialize());
|
||||
} else {
|
||||
reject("All private keys not present");
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
}).catch(error => reject(error))
|
||||
})
|
||||
}
|
||||
|
||||
|
||||
btcOperator.sendTx = function (senders, privkeys, receivers, amounts, fee = null, options = {}) {
|
||||
return new Promise((resolve, reject) => {
|
||||
createSignedTx(senders, privkeys, receivers, amounts, fee, options).then(result => {
|
||||
debugger;
|
||||
broadcastTx(result.transaction.serialize())
|
||||
.then(txid => resolve(txid))
|
||||
.catch(error => reject(error));
|
||||
@ -1157,9 +694,7 @@
|
||||
})
|
||||
}
|
||||
|
||||
btcOperator.createTx = function (senders, receivers, amounts, fee = null, options = {
|
||||
allowUnconfirmedUtxos: false
|
||||
}) {
|
||||
btcOperator.createTx = function (senders, receivers, amounts, fee = null, options = {}) {
|
||||
return new Promise((resolve, reject) => {
|
||||
try {
|
||||
({
|
||||
@ -1180,7 +715,7 @@
|
||||
if (redeemScripts.includes(null)) //TODO: segwit
|
||||
return reject("Unable to get redeem-script");
|
||||
//create transaction
|
||||
createTransaction(senders, redeemScripts, receivers, amounts, fee, options.change_address || senders[0], options.fee_from_receiver, options.allowUnconfirmedUtxos).then(result => {
|
||||
createTransaction(senders, redeemScripts, receivers, amounts, fee, options.change_address || senders[0], options.fee_from_receiver).then(result => {
|
||||
result.tx_hex = result.transaction.serialize();
|
||||
delete result.transaction;
|
||||
resolve(result);
|
||||
@ -1225,7 +760,7 @@
|
||||
})
|
||||
}
|
||||
|
||||
const deserializeTx = btcOperator.deserializeTx = function (tx) {
|
||||
function deserializeTx(tx) {
|
||||
if (typeof tx === 'string' || Array.isArray(tx)) {
|
||||
try {
|
||||
tx = coinjs.transaction().deserialize(tx);
|
||||
@ -1291,7 +826,7 @@
|
||||
}
|
||||
|
||||
const getTxOutput = (txid, i) => new Promise((resolve, reject) => {
|
||||
multiApi('tx', { txid })
|
||||
fetch_api(`rawtx/${txid}`)
|
||||
.then(result => resolve(result.out[i]))
|
||||
.catch(error => reject(error))
|
||||
});
|
||||
@ -1353,40 +888,87 @@
|
||||
.catch(error => reject(error))
|
||||
})
|
||||
|
||||
const getTx = btcOperator.getTx = txid => new Promise(async (resolve, reject) => {
|
||||
try {
|
||||
const result = await multiApi('tx', { txid });
|
||||
if (!result.hasOwnProperty('confirmations'))
|
||||
result.confirmations = await getLatestBlock() - result.block_height;
|
||||
resolve({
|
||||
const getTx = btcOperator.getTx = txid => new Promise((resolve, reject) => {
|
||||
fetch_api(`rawtx/${txid}`).then(result => {
|
||||
getLatestBlock().then(latest_block => resolve({
|
||||
block: result.block_height,
|
||||
txid: result.hash,
|
||||
time: result.time,
|
||||
time: result.time * 1000,
|
||||
confirmations: result.block_height === null ? 0 : latest_block - result.block_height, //calculate confirmations using latest block number as api doesnt relay it
|
||||
size: result.size,
|
||||
fee: util.Sat_to_BTC(result.fee),
|
||||
inputs: result.inputs.map(i => Object({ address: i.prev_out.addr, value: util.Sat_to_BTC(i.prev_out.value) })),
|
||||
total_input_value: util.Sat_to_BTC(result.inputs.reduce((a, i) => a + i.prev_out.value, 0)),
|
||||
outputs: result.out.map(o => Object({ address: o.addr, value: util.Sat_to_BTC(o.value) })),
|
||||
total_output_value: util.Sat_to_BTC(result.out.reduce((a, o) => a += o.value, 0)),
|
||||
})
|
||||
} catch (error) {
|
||||
reject(error)
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
}))
|
||||
}).catch(error => reject(error))
|
||||
});
|
||||
|
||||
getTx.hex = btcOperator.getTx.hex = txid => multiApi('txHex', { txid });
|
||||
getTx.hex = txid => new Promise((resolve, reject) => {
|
||||
fetch_api(`rawtx/${txid}?format=hex`, false)
|
||||
.then(result => resolve(result))
|
||||
.catch(error => reject(error))
|
||||
})
|
||||
|
||||
btcOperator.getAddressData = address => new Promise((resolve, reject) => {
|
||||
Promise.all([
|
||||
multiApi('balance', { addr: address }),
|
||||
multiApi('txs', { addr: address })
|
||||
]).then(([balance, txs]) => {
|
||||
const parsedTxs = txs.map(tx => parseTx(tx, address));
|
||||
resolve({
|
||||
address,
|
||||
balance,
|
||||
txs: parsedTxs
|
||||
});
|
||||
fetch_api(`rawaddr/${address}`).then(data => {
|
||||
let details = {};
|
||||
details.balance = util.Sat_to_BTC(data.final_balance);
|
||||
details.address = data.address;
|
||||
details.txs = data.txs.map(tx => {
|
||||
let d = {
|
||||
txid: tx.hash,
|
||||
time: tx.time * 1000, //s to ms
|
||||
block: tx.block_height,
|
||||
}
|
||||
//sender list
|
||||
d.tx_senders = {};
|
||||
tx.inputs.forEach(i => {
|
||||
if (i.prev_out.addr in d.tx_senders)
|
||||
d.tx_senders[i.prev_out.addr] += i.prev_out.value;
|
||||
else d.tx_senders[i.prev_out.addr] = i.prev_out.value;
|
||||
});
|
||||
d.tx_input_value = 0;
|
||||
for (let s in d.tx_senders) {
|
||||
let val = d.tx_senders[s];
|
||||
d.tx_senders[s] = util.Sat_to_BTC(val);
|
||||
d.tx_input_value += val;
|
||||
}
|
||||
d.tx_input_value = util.Sat_to_BTC(d.tx_input_value);
|
||||
//receiver list
|
||||
d.tx_receivers = {};
|
||||
tx.out.forEach(o => {
|
||||
if (o.addr in d.tx_receivers)
|
||||
d.tx_receivers[o.addr] += o.value;
|
||||
else d.tx_receivers[o.addr] = o.value;
|
||||
});
|
||||
d.tx_output_value = 0;
|
||||
for (let r in d.tx_receivers) {
|
||||
let val = d.tx_receivers[r];
|
||||
d.tx_receivers[r] = util.Sat_to_BTC(val);
|
||||
d.tx_output_value += val;
|
||||
}
|
||||
d.tx_output_value = util.Sat_to_BTC(d.tx_output_value);
|
||||
d.tx_fee = util.Sat_to_BTC(tx.fee);
|
||||
//tx type
|
||||
if (tx.result > 0) { //net > 0, balance inc => type=in
|
||||
d.type = "in";
|
||||
d.amount = util.Sat_to_BTC(tx.result);
|
||||
d.sender = Object.keys(d.tx_senders).filter(s => s !== address);
|
||||
} else if (Object.keys(d.tx_receivers).some(r => r !== address)) { //net < 0, balance dec & receiver present => type=out
|
||||
d.type = "out";
|
||||
d.amount = util.Sat_to_BTC(tx.result * -1);
|
||||
d.receiver = Object.keys(d.tx_receivers).filter(r => r !== address);
|
||||
d.fee = d.tx_fee;
|
||||
} else { //net < 0 (fee) & no other id in receiver list => type=self
|
||||
d.type = "self";
|
||||
d.amount = d.tx_receivers[address];
|
||||
d.address = address
|
||||
}
|
||||
return d;
|
||||
})
|
||||
resolve(details);
|
||||
}).catch(error => reject(error))
|
||||
});
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user