1147 lines
53 KiB
JavaScript
1147 lines
53 KiB
JavaScript
(function (EXPORTS) { //btcOperator v1.1.4
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/* BTC Crypto and API Operator */
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const btcOperator = EXPORTS;
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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, 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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if (response.ok) {
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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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response.json()
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.then(result => reject(result))
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.catch(error => reject(error))
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}
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}).catch(error => reject(error))
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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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if (response.ok)
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response.json()
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.then(result => resolve(util.Sat_to_BTC(result.regular)))
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.catch(error => reject(error));
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else
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reject(response);
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}).catch(error => reject(error))
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})
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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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headers: {
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'Content-Type': 'application/x-www-form-urlencoded'
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},
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body: "rawtx=" + rawTxHex
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}).then(response => {
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response.text().then(resultText => {
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let r = resultText.match(/<result>.*<\/result>/);
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if (!r)
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reject(resultText);
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else {
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r = r.pop().replace('<result>', '').replace('</result>', '');
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if (r == '1') {
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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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reject(decodeURIComponent(error.replace(/\+/g, " ")));
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} else reject(resultText);
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}
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}).catch(error => reject(error))
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}).catch(error => reject(error))
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});
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Object.defineProperties(btcOperator, {
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newKeys: {
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get: () => {
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let r = coinjs.newKeys();
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r.segwitAddress = coinjs.segwitAddress(r.pubkey).address;
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r.bech32Address = coinjs.bech32Address(r.pubkey).address;
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return r;
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}
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},
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pubkey: {
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value: key => key.length >= 66 ? key : (key.length == 64 ? coinjs.newPubkey(key) : coinjs.wif2pubkey(key).pubkey)
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},
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address: {
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value: (key, prefix = undefined) => coinjs.pubkey2address(btcOperator.pubkey(key), prefix)
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},
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segwitAddress: {
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value: key => coinjs.segwitAddress(btcOperator.pubkey(key)).address
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},
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bech32Address: {
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value: key => coinjs.bech32Address(btcOperator.pubkey(key)).address
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},
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bech32mAddress: {
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value: key => segwit_addr.encode("bc", 1, key)
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}
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});
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coinjs.compressed = true;
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const verifyKey = btcOperator.verifyKey = function (addr, key) {
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if (!addr || !key)
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return undefined;
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switch (coinjs.addressDecode(addr).type) {
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case "standard":
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return btcOperator.address(key) === addr;
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case "multisig":
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return btcOperator.segwitAddress(key) === addr;
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case "bech32":
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return btcOperator.bech32Address(key) === addr;
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case "bech32m":
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return btcOperator.bech32mAddress(key) === addr; // Key is a byte array of 32 bytes
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default:
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return null;
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}
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}
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const validateAddress = btcOperator.validateAddress = function (addr) {
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if (!addr)
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return undefined;
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let type = coinjs.addressDecode(addr).type;
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if (["standard", "multisig", "bech32", "multisigBech32", "bech32m"].includes(type))
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return type;
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else
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return false;
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}
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btcOperator.multiSigAddress = function (pubKeys, minRequired, bech32 = true) {
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if (!Array.isArray(pubKeys))
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throw "pubKeys must be an array of public keys";
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else if (pubKeys.length < minRequired)
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throw "minimum required should be less than the number of pubKeys";
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if (bech32)
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return coinjs.pubkeys2MultisigAddressBech32(pubKeys, minRequired);
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else
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return coinjs.pubkeys2MultisigAddress(pubKeys, minRequired);
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}
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btcOperator.decodeRedeemScript = function (redeemScript, bech32 = true) {
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let script = coinjs.script();
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let decoded = (bech32) ?
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script.decodeRedeemScriptBech32(redeemScript) :
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script.decodeRedeemScript(redeemScript);
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if (!decoded)
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return null;
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return {
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address: decoded.address,
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pubKeys: decoded.pubkeys,
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redeemScript: decoded.redeemscript,
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required: decoded.signaturesRequired
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}
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}
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//convert from one blockchain to another blockchain (target version)
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btcOperator.convert = {};
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btcOperator.convert.wif = function (source_wif, target_version = coinjs.priv) {
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let keyHex = util.decodeLegacy(source_wif).hex;
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if (!keyHex || keyHex.length < 66 || !/01$/.test(keyHex))
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return null;
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else
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return util.encodeLegacy(keyHex, target_version);
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}
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btcOperator.convert.legacy2legacy = function (source_addr, target_version = coinjs.pub) {
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let rawHex = util.decodeLegacy(source_addr).hex;
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if (!rawHex)
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return null;
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else
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return util.encodeLegacy(rawHex, target_version);
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}
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btcOperator.convert.legacy2bech = function (source_addr, target_version = coinjs.bech32.version, target_hrp = coinjs.bech32.hrp) {
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let rawHex = util.decodeLegacy(source_addr).hex;
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if (!rawHex)
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return null;
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else
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return util.encodeBech32(rawHex, target_version, target_hrp);
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}
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btcOperator.convert.bech2bech = function (source_addr, target_version = coinjs.bech32.version, target_hrp = coinjs.bech32.hrp) {
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let rawHex = util.decodeBech32(source_addr).hex;
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if (!rawHex)
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return null;
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else
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return util.encodeBech32(rawHex, target_version, target_hrp);
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}
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btcOperator.convert.bech2legacy = function (source_addr, target_version = coinjs.pub) {
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let rawHex = util.decodeBech32(source_addr).hex;
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if (!rawHex)
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return null;
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else
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return util.encodeLegacy(rawHex, target_version);
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}
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btcOperator.convert.multisig2multisig = function (source_addr, target_version = coinjs.multisig) {
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let rawHex = util.decodeLegacy(source_addr).hex;
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if (!rawHex)
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return null;
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else
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return util.encodeLegacy(rawHex, target_version);
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}
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btcOperator.convert.bech2multisig = function (source_addr, target_version = coinjs.multisig) {
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let rawHex = util.decodeBech32(source_addr).hex;
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if (!rawHex)
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return null;
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else {
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rawHex = Crypto.util.bytesToHex(ripemd160(Crypto.util.hexToBytes(rawHex), { asBytes: true }));
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return util.encodeLegacy(rawHex, target_version);
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}
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}
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util.decodeLegacy = function (source) {
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var decode = coinjs.base58decode(source);
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var raw = decode.slice(0, decode.length - 4),
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checksum = decode.slice(decode.length - 4);
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var hash = Crypto.SHA256(Crypto.SHA256(raw, {
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asBytes: true
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}), {
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asBytes: true
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});
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if (hash[0] != checksum[0] || hash[1] != checksum[1] || hash[2] != checksum[2] || hash[3] != checksum[3])
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return false;
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let version = raw.shift();
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return {
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version: version,
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hex: Crypto.util.bytesToHex(raw)
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}
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}
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util.encodeLegacy = function (hex, version) {
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var bytes = Crypto.util.hexToBytes(hex);
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bytes.unshift(version);
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var hash = Crypto.SHA256(Crypto.SHA256(bytes, {
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asBytes: true
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}), {
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asBytes: true
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});
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var checksum = hash.slice(0, 4);
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return coinjs.base58encode(bytes.concat(checksum));
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}
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util.decodeBech32 = function (source) {
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let decode = coinjs.bech32_decode(source);
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if (!decode)
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return false;
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var raw = decode.data;
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let version = raw.shift();
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raw = coinjs.bech32_convert(raw, 5, 8, false);
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return {
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hrp: decode.hrp,
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version: version,
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hex: Crypto.util.bytesToHex(raw)
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}
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}
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util.encodeBech32 = function (hex, version, hrp) {
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var bytes = Crypto.util.hexToBytes(hex);
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bytes = coinjs.bech32_convert(bytes, 8, 5, true);
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bytes.unshift(version)
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return coinjs.bech32_encode(hrp, bytes);
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}
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//BTC blockchain APIs
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btcOperator.getBalance = addr => new Promise((resolve, reject) => {
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fetch_api(`q/addressbalance/${addr}`)
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.then(result => resolve(util.Sat_to_BTC(result)))
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.catch(error => reject(error))
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});
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const BASE_TX_SIZE = 12,
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BASE_INPUT_SIZE = 41,
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LEGACY_INPUT_SIZE = 107,
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BECH32_INPUT_SIZE = 27,
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BECH32_MULTISIG_INPUT_SIZE = 35,
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SEGWIT_INPUT_SIZE = 59,
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MULTISIG_INPUT_SIZE_ES = 351,
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BASE_OUTPUT_SIZE = 9,
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LEGACY_OUTPUT_SIZE = 25,
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BECH32_OUTPUT_SIZE = 23,
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BECH32_MULTISIG_OUTPUT_SIZE = 34,
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SEGWIT_OUTPUT_SIZE = 23;
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BECH32M_OUTPUT_SIZE = 35; // Check this later
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function _redeemScript(addr, key) {
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let decode = coinjs.addressDecode(addr);
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switch (decode.type) {
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case "standard":
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return false;
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case "multisig":
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return key ? coinjs.segwitAddress(btcOperator.pubkey(key)).redeemscript : null;
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case "bech32":
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return decode.redeemscript;
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case "'multisigBech32":
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return decode.redeemscript; //Multisig-edit-fee-change1
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case "bech32m":
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return decode.outstring; //Maybe the redeemscript will come when input processing happens for bech32m
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default:
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return null;
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}
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}
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btcOperator._redeemScript = _redeemScript;
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function _sizePerInput(addr, rs) {
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switch (coinjs.addressDecode(addr).type) {
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case "standard":
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return BASE_INPUT_SIZE + LEGACY_INPUT_SIZE;
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case "bech32":
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return BASE_INPUT_SIZE + BECH32_INPUT_SIZE;
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case "multisigBech32":
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return BASE_INPUT_SIZE + BECH32_MULTISIG_INPUT_SIZE;
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case "multisig":
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switch (coinjs.script().decodeRedeemScript(rs).type) {
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case "segwit__":
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return BASE_INPUT_SIZE + SEGWIT_INPUT_SIZE;
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case "multisig__":
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return BASE_INPUT_SIZE + MULTISIG_INPUT_SIZE_ES;
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default:
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return null;
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};
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default:
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return null;
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}
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}
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function _sizePerOutput(addr) {
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switch (coinjs.addressDecode(addr).type) {
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case "standard":
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return BASE_OUTPUT_SIZE + LEGACY_OUTPUT_SIZE;
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case "bech32":
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return BASE_OUTPUT_SIZE + BECH32_OUTPUT_SIZE;
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case "multisigBech32":
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return BASE_OUTPUT_SIZE + BECH32_MULTISIG_OUTPUT_SIZE;
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case "multisig":
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return BASE_OUTPUT_SIZE + SEGWIT_OUTPUT_SIZE;
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case "bech32m":
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return BASE_OUTPUT_SIZE + BECH32M_OUTPUT_SIZE;
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default:
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return null;
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}
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}
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function validateTxParameters(parameters) {
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let invalids = [];
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//sender-ids
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if (parameters.senders) {
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if (!Array.isArray(parameters.senders))
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parameters.senders = [parameters.senders];
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parameters.senders.forEach(id => !validateAddress(id) ? invalids.push(id) : null);
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if (invalids.length)
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throw "Invalid senders:" + invalids;
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}
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if (parameters.privkeys) {
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if (!Array.isArray(parameters.privkeys))
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parameters.privkeys = [parameters.privkeys];
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if (parameters.senders.length != parameters.privkeys.length)
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throw "Array length for senders and privkeys should be equal";
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parameters.senders.forEach((id, i) => {
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let key = parameters.privkeys[i];
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if (!verifyKey(id, key)) //verify private-key
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invalids.push(id);
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if (key.length === 64) //convert Hex to WIF if needed
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parameters.privkeys[i] = coinjs.privkey2wif(key);
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});
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if (invalids.length)
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throw "Invalid private key for address:" + invalids;
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}
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//receiver-ids (and change-id)
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if (!Array.isArray(parameters.receivers))
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parameters.receivers = [parameters.receivers];
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parameters.receivers.forEach(id => !validateAddress(id) ? invalids.push(id) : null);
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if (invalids.length)
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throw "Invalid receivers:" + invalids;
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if (parameters.change_address && !validateAddress(parameters.change_address))
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throw "Invalid change_address:" + parameters.change_address;
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//fee and amounts
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if ((typeof parameters.fee !== "number" || parameters.fee <= 0) && parameters.fee !== null) //fee = null (auto calc)
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throw "Invalid fee:" + parameters.fee;
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if (!Array.isArray(parameters.amounts))
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parameters.amounts = [parameters.amounts];
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if (parameters.receivers.length != parameters.amounts.length)
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throw "Array length for receivers and amounts should be equal";
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parameters.amounts.forEach(a => typeof a !== "number" || a <= 0 ? invalids.push(a) : null);
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if (invalids.length)
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throw "Invalid amounts:" + invalids;
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//return
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return parameters;
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}
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btcOperator.validateTxParameters = validateTxParameters;
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function createTransaction(senders, redeemScripts, receivers, amounts, fee, change_address, fee_from_receiver, allowUnconfirmedUtxos = false) {
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return new Promise((resolve, reject) => {
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let total_amount = parseFloat(amounts.reduce((t, a) => t + a, 0).toFixed(8));
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const tx = coinjs.transaction();
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let output_size = addOutputs(tx, receivers, amounts, change_address);
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addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver, allowUnconfirmedUtxos).then(result => {
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if (result.change_amount > 0 && result.change_amount > result.fee) //add change amount if any (ignore dust change)
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tx.outs[tx.outs.length - 1].value = util.BTC_to_Sat(result.change_amount); //values are in satoshi
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if (fee_from_receiver) { //deduce fee from receivers if fee_from_receiver
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let fee_remaining = util.BTC_to_Sat(result.fee);
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for (let i = 0; i < tx.outs.length - 1 && fee_remaining > 0; i++) {
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if (fee_remaining < tx.outs[i].value) {
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tx.outs[i].value -= fee_remaining;
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fee_remaining = 0;
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} else {
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fee_remaining -= tx.outs[i].value;
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tx.outs[i].value = 0;
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}
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}
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if (fee_remaining > 0)
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return reject("Send amount is less than fee");
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}
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//remove all output with value less than DUST amount
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let filtered_outputs = [], dust_value = 0;
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tx.outs.forEach(o => o.value >= DUST_AMT ? filtered_outputs.push(o) : dust_value += o.value);
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tx.outs = filtered_outputs;
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//update result values
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result.fee += util.Sat_to_BTC(dust_value);
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result.output_size = output_size;
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result.output_amount = total_amount - (fee_from_receiver ? result.fee : 0);
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result.total_size = BASE_TX_SIZE + output_size + result.input_size;
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result.transaction = tx;
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resolve(result);
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}).catch(error => reject(error))
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})
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}
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btcOperator.createTransaction = createTransaction;
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function addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver, allowUnconfirmedUtxos = false) {
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return new Promise((resolve, reject) => {
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if (fee !== null) {
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addUTXOs(tx, senders, redeemScripts, fee_from_receiver ? total_amount : total_amount + fee, false, { allowUnconfirmedUtxos }).then(result => {
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result.fee = fee;
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resolve(result);
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}).catch(error => reject(error))
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} else {
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get_fee_rate().then(fee_rate => {
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let net_fee = BASE_TX_SIZE * fee_rate;
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net_fee += (output_size * fee_rate);
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(fee_from_receiver ?
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addUTXOs(tx, senders, redeemScripts, total_amount, false, { allowUnconfirmedUtxos }) :
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addUTXOs(tx, senders, redeemScripts, total_amount + net_fee, fee_rate, { allowUnconfirmedUtxos })
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).then(result => {
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result.fee = parseFloat((net_fee + (result.input_size * fee_rate)).toFixed(8));
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result.fee_rate = fee_rate;
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resolve(result);
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}).catch(error => reject(error))
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}).catch(error => reject(error))
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}
|
|
})
|
|
}
|
|
btcOperator.addInputs = addInputs;
|
|
|
|
function addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args = { allowUnconfirmedUtxos: false }) {
|
|
return new Promise((resolve, reject) => {
|
|
required_amount = parseFloat(required_amount.toFixed(8));
|
|
if (typeof rec_args.n === "undefined") {
|
|
rec_args.n = 0;
|
|
rec_args.input_size = 0;
|
|
rec_args.input_amount = 0;
|
|
}
|
|
if (required_amount <= 0)
|
|
return resolve({
|
|
input_size: rec_args.input_size,
|
|
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) {
|
|
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);
|
|
fetch_api(`unspent?active=${addr}`).then(result => {
|
|
let utxos = result.unspent_outputs;
|
|
//console.debug("add-utxo", addr, rs, required_amount, utxos);
|
|
for (let i = 0; i < utxos.length && required_amount > 0; i++) {
|
|
if (utxos.length === 1 && rec_args.allowUnconfirmedUtxos) {
|
|
console.log('allowing unconfirmed utxos')
|
|
} else if (!utxos[i].confirmations) //ignore unconfirmed utxo
|
|
continue;
|
|
var script;
|
|
if (!rs || !rs.length) //legacy script
|
|
script = utxos[i].script;
|
|
else if (((rs.match(/^00/) && rs.length == 44)) || (rs.length == 40 && rs.match(/^[a-f0-9]+$/gi)) || addr_type === 'multisigBech32') {
|
|
//redeemScript for segwit/bech32 and multisig (bech32)
|
|
let s = coinjs.script();
|
|
s.writeBytes(Crypto.util.hexToBytes(rs));
|
|
s.writeOp(0);
|
|
s.writeBytes(coinjs.numToBytes(utxos[i].value.toFixed(0), 8));
|
|
script = Crypto.util.bytesToHex(s.buffer);
|
|
} else //redeemScript for multisig (segwit)
|
|
script = rs;
|
|
tx.addinput(utxos[i].tx_hash_big_endian, utxos[i].tx_output_n, script, 0xfffffffd /*sequence*/); //0xfffffffd for Replace-by-fee
|
|
//update track values
|
|
rec_args.input_size += size_per_input;
|
|
rec_args.input_amount += util.Sat_to_BTC(utxos[i].value);
|
|
required_amount -= util.Sat_to_BTC(utxos[i].value);
|
|
if (fee_rate) //automatic fee calculation (dynamic)
|
|
required_amount += size_per_input * fee_rate;
|
|
}
|
|
rec_args.n += 1;
|
|
addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args)
|
|
.then(result => resolve(result))
|
|
.catch(error => reject(error))
|
|
}).catch(error => reject(error))
|
|
})
|
|
}
|
|
btcOperator.addUTXOs = addUTXOs;
|
|
|
|
function addOutputs(tx, receivers, amounts, change_address) {
|
|
let size = 0;
|
|
for (let i in receivers) {
|
|
tx.addoutput(receivers[i], amounts[i]);
|
|
size += _sizePerOutput(receivers[i]);
|
|
}
|
|
tx.addoutput(change_address, 0);
|
|
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) => {
|
|
if (typeof tx == 'string' && /^[0-9a-f]{64}$/i.test(tx)) { //tx is txid
|
|
getTx.hex(tx)
|
|
.then(txhex => resolve(deserializeTx(txhex)))
|
|
.catch(error => reject(error))
|
|
} 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) => {
|
|
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 = [];
|
|
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)) || addr_decode.type === 'multisigBech32') {
|
|
//redeemScript for segwit/bech32 and multisig (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);
|
|
} 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
|
|
resolve(tx.serialize());
|
|
}).catch(error => reject(error))
|
|
}).catch(error => reject(error))
|
|
})
|
|
}
|
|
|
|
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 => {
|
|
broadcastTx(result.transaction.serialize())
|
|
.then(txid => resolve(txid))
|
|
.catch(error => reject(error));
|
|
}).catch(error => reject(error))
|
|
})
|
|
}
|
|
|
|
const createSignedTx = btcOperator.createSignedTx = function (senders, privkeys, receivers, amounts, fee = null, options = {}) {
|
|
return new Promise((resolve, reject) => {
|
|
try {
|
|
({
|
|
senders,
|
|
privkeys,
|
|
receivers,
|
|
amounts
|
|
} = validateTxParameters({
|
|
senders,
|
|
privkeys,
|
|
receivers,
|
|
amounts,
|
|
fee,
|
|
change_address: options.change_address
|
|
}));
|
|
} catch (e) {
|
|
return reject(e)
|
|
}
|
|
let redeemScripts = [],
|
|
wif_keys = [];
|
|
for (let i in senders) {
|
|
let rs = _redeemScript(senders[i], privkeys[i]); //get redeem-script (segwit/bech32)
|
|
redeemScripts.push(rs);
|
|
rs === false ? wif_keys.unshift(privkeys[i]) : wif_keys.push(privkeys[i]); //sorting private-keys (wif)
|
|
}
|
|
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).then(result => {
|
|
let tx = result.transaction;
|
|
console.debug("Unsigned:", tx.serialize());
|
|
new Set(wif_keys).forEach(key => tx.sign(key, 1 /*sighashtype*/)); //Sign the tx using private key WIF
|
|
console.debug("Signed:", tx.serialize());
|
|
resolve(result);
|
|
}).catch(error => reject(error));
|
|
})
|
|
}
|
|
|
|
btcOperator.createTx = function (senders, receivers, amounts, fee = null, options = {
|
|
allowUnconfirmedUtxos: false
|
|
}) {
|
|
return new Promise((resolve, reject) => {
|
|
try {
|
|
({
|
|
senders,
|
|
receivers,
|
|
amounts
|
|
} = validateTxParameters({
|
|
senders,
|
|
receivers,
|
|
amounts,
|
|
fee,
|
|
change_address: options.change_address
|
|
}));
|
|
} catch (e) {
|
|
return reject(e)
|
|
}
|
|
let redeemScripts = senders.map(id => _redeemScript(id));
|
|
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 => {
|
|
result.tx_hex = result.transaction.serialize();
|
|
delete result.transaction;
|
|
resolve(result);
|
|
}).catch(error => reject(error))
|
|
})
|
|
}
|
|
|
|
btcOperator.createMultiSigTx = function (sender, redeemScript, receivers, amounts, fee = null, options = {}) {
|
|
return new Promise((resolve, reject) => {
|
|
//validate tx parameters
|
|
let addr_type = validateAddress(sender);
|
|
if (!(["multisig", "multisigBech32"].includes(addr_type)))
|
|
return reject("Invalid sender (multisig):" + sender);
|
|
else {
|
|
let script = coinjs.script();
|
|
let decode = (addr_type == "multisig") ?
|
|
script.decodeRedeemScript(redeemScript) :
|
|
script.decodeRedeemScriptBech32(redeemScript);
|
|
if (!decode || decode.address !== sender)
|
|
return reject("Invalid redeem-script");
|
|
}
|
|
try {
|
|
({
|
|
receivers,
|
|
amounts
|
|
} = validateTxParameters({
|
|
receivers,
|
|
amounts,
|
|
fee,
|
|
change_address: options.change_address
|
|
}));
|
|
} catch (e) {
|
|
return reject(e)
|
|
}
|
|
//create transaction
|
|
createTransaction([sender], [redeemScript], receivers, amounts, fee, options.change_address || sender, options.fee_from_receiver).then(result => {
|
|
result.tx_hex = result.transaction.serialize();
|
|
delete result.transaction;
|
|
resolve(result);
|
|
}).catch(error => reject(error))
|
|
|
|
})
|
|
}
|
|
|
|
const deserializeTx = btcOperator.deserializeTx = function (tx) {
|
|
if (typeof tx === 'string' || Array.isArray(tx)) {
|
|
try {
|
|
tx = coinjs.transaction().deserialize(tx);
|
|
} catch {
|
|
throw "Invalid transaction hex";
|
|
}
|
|
} else if (typeof tx !== 'object' || typeof tx.sign !== 'function')
|
|
throw "Invalid transaction object";
|
|
return tx;
|
|
}
|
|
|
|
btcOperator.signTx = function (tx, privkeys, sighashtype = 1) {
|
|
tx = deserializeTx(tx);
|
|
if (!Array.isArray(privkeys))
|
|
privkeys = [privkeys];
|
|
for (let i in privkeys)
|
|
if (privkeys[i].length === 64)
|
|
privkeys[i] = coinjs.privkey2wif(privkeys[i]);
|
|
new Set(privkeys).forEach(key => tx.sign(key, sighashtype)); //Sign the tx using private key WIF
|
|
return tx.serialize();
|
|
}
|
|
|
|
const checkSigned = btcOperator.checkSigned = function (tx, bool = true) {
|
|
tx = deserializeTx(tx);
|
|
let n = [];
|
|
for (let i in tx.ins) {
|
|
var s = tx.extractScriptKey(i);
|
|
if (s['type'] !== 'multisig' && s['type'] !== 'multisig_bech32')
|
|
n.push(s.signed == 'true' || (tx.witness[i] && tx.witness[i].length == 2))
|
|
else {
|
|
var rs = coinjs.script().decodeRedeemScript(s.script); //will work for bech32 too, as only address is diff
|
|
let x = {
|
|
s: s['signatures'],
|
|
r: rs['signaturesRequired'],
|
|
t: rs['pubkeys'].length
|
|
};
|
|
if (x.r > x.t)
|
|
throw "signaturesRequired is more than publicKeys";
|
|
else if (x.s < x.r)
|
|
n.push(x);
|
|
else
|
|
n.push(true);
|
|
}
|
|
}
|
|
return bool ? !(n.filter(x => x !== true).length) : n;
|
|
}
|
|
|
|
btcOperator.checkIfSameTx = function (tx1, tx2) {
|
|
tx1 = deserializeTx(tx1);
|
|
tx2 = deserializeTx(tx2);
|
|
//compare input and output length
|
|
if (tx1.ins.length !== tx2.ins.length || tx1.outs.length !== tx2.outs.length)
|
|
return false;
|
|
//compare inputs
|
|
for (let i = 0; i < tx1.ins.length; i++)
|
|
if (tx1.ins[i].outpoint.hash !== tx2.ins[i].outpoint.hash || tx1.ins[i].outpoint.index !== tx2.ins[i].outpoint.index)
|
|
return false;
|
|
//compare outputs
|
|
for (let i = 0; i < tx1.outs.length; i++)
|
|
if (tx1.outs[i].value !== tx2.outs[i].value || Crypto.util.bytesToHex(tx1.outs[i].script.buffer) !== Crypto.util.bytesToHex(tx2.outs[i].script.buffer))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
const getTxOutput = (txid, i) => new Promise((resolve, reject) => {
|
|
fetch_api(`rawtx/${txid}`)
|
|
.then(result => resolve(result.out[i]))
|
|
.catch(error => reject(error))
|
|
});
|
|
|
|
const parseTransaction = btcOperator.parseTransaction = function (tx) {
|
|
return new Promise((resolve, reject) => {
|
|
tx = deserializeTx(tx);
|
|
let result = {};
|
|
let promises = [];
|
|
//Parse Inputs
|
|
for (let i = 0; i < tx.ins.length; i++)
|
|
promises.push(getTxOutput(tx.ins[i].outpoint.hash, tx.ins[i].outpoint.index));
|
|
Promise.all(promises).then(inputs => {
|
|
result.inputs = inputs.map(inp => Object({
|
|
address: inp.addr,
|
|
value: util.Sat_to_BTC(inp.value)
|
|
}));
|
|
let signed = checkSigned(tx, false);
|
|
result.inputs.forEach((inp, i) => inp.signed = signed[i]);
|
|
//Parse Outputs
|
|
result.outputs = tx.outs.map(out => {
|
|
var address;
|
|
switch (out.script.chunks[0]) {
|
|
case 0: //bech32, multisig-bech32
|
|
address = util.encodeBech32(Crypto.util.bytesToHex(out.script.chunks[1]), coinjs.bech32.version, coinjs.bech32.hrp);
|
|
break;
|
|
case 169: //segwit, multisig-segwit
|
|
address = util.encodeLegacy(Crypto.util.bytesToHex(out.script.chunks[1]), coinjs.multisig);
|
|
break;
|
|
case 118: //legacy
|
|
address = util.encodeLegacy(Crypto.util.bytesToHex(out.script.chunks[2]), coinjs.pub);
|
|
}
|
|
return {
|
|
address,
|
|
value: util.Sat_to_BTC(out.value)
|
|
}
|
|
});
|
|
//Parse Totals
|
|
result.total_input = parseFloat(result.inputs.reduce((a, inp) => a += inp.value, 0).toFixed(8));
|
|
result.total_output = parseFloat(result.outputs.reduce((a, out) => a += out.value, 0).toFixed(8));
|
|
result.fee = parseFloat((result.total_input - result.total_output).toFixed(8));
|
|
resolve(result);
|
|
}).catch(error => reject(error))
|
|
})
|
|
}
|
|
|
|
btcOperator.transactionID = function (tx) {
|
|
tx = deserializeTx(tx);
|
|
let clone = coinjs.clone(tx);
|
|
clone.witness = null;
|
|
let raw_bytes = Crypto.util.hexToBytes(clone.serialize());
|
|
let txid = Crypto.SHA256(Crypto.SHA256(raw_bytes, { asBytes: true }), { asBytes: true }).reverse();
|
|
return Crypto.util.bytesToHex(txid);
|
|
}
|
|
|
|
const getLatestBlock = btcOperator.getLatestBlock = () => new Promise((resolve, reject) => {
|
|
fetch_api(`q/getblockcount`)
|
|
.then(result => resolve(result))
|
|
.catch(error => reject(error))
|
|
})
|
|
|
|
const getTx = btcOperator.getTx = txid => new Promise((resolve, reject) => {
|
|
fetch_api(`rawtx/${txid}`).then(result => {
|
|
console.debug("Tx:", result);
|
|
getLatestBlock().then(latest_block => resolve({
|
|
block: result.block_height,
|
|
txid: result.hash,
|
|
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))
|
|
});
|
|
|
|
getTx.hex = btcOperator.getTx.hex = txid => new Promise((resolve, reject) => {
|
|
fetch_api(`rawtx/${txid}?format=hex`, false)
|
|
.then(result => resolve(result))
|
|
.catch(error => reject(error))
|
|
})
|
|
|
|
btcOperator.getAddressData = address => new Promise((resolve, reject) => {
|
|
fetch_api(`rawaddr/${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))
|
|
});
|
|
|
|
btcOperator.getBlock = block => new Promise((resolve, reject) => {
|
|
fetch_api(`rawblock/${block}`).then(result => resolve({
|
|
height: result.height,
|
|
hash: result.hash,
|
|
merkle_root: result.mrkl_root,
|
|
prev_block: result.prev_block,
|
|
next_block: result.next_block[0],
|
|
size: result.size,
|
|
time: result.time * 1000, //s to ms
|
|
txs: result.tx.map(t => Object({
|
|
fee: t.fee,
|
|
size: t.size,
|
|
inputs: t.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(t.inputs.reduce((a, i) => a + i.prev_out.value, 0)),
|
|
outputs: t.out.map(o => Object({ address: o.addr, value: util.Sat_to_BTC(o.value) })),
|
|
total_output_value: util.Sat_to_BTC(t.out.reduce((a, o) => a += o.value, 0)),
|
|
}))
|
|
|
|
})).catch(error => reject(error))
|
|
});
|
|
|
|
})('object' === typeof module ? module.exports : window.btcOperator = {});
|