@bitgo-beta/utxo-lib
Version:
Client-side Bitcoin JavaScript library
57 lines • 7.12 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.toOutputScript = exports.fromOutputScript = exports.toBase58Check = exports.fromBase58Check = void 0;
const assert = require("assert");
const bitcoinjs_lib_1 = require("bitcoinjs-lib");
const types = require("bitcoinjs-lib/src/types");
const networks_1 = require("../../networks");
const bs58check = require('bs58check');
const typeforce = require('typeforce');
function fromBase58Check(address) {
const payload = bs58check.decode(address);
const version = payload.readUInt16BE(0);
const hash = payload.slice(2);
return { version, hash };
}
exports.fromBase58Check = fromBase58Check;
function toBase58Check(hash, version) {
typeforce(types.tuple(types.Hash160bit, types.Number), arguments);
const payload = Buffer.allocUnsafe(22);
payload.writeUInt16BE(version, 0);
hash.copy(payload, 2);
return bs58check.encode(payload);
}
exports.toBase58Check = toBase58Check;
function fromOutputScript(outputScript, network) {
assert(networks_1.isZcash(network));
let o;
let prefix;
try {
o = bitcoinjs_lib_1.payments.p2pkh({ output: outputScript });
prefix = network.pubKeyHash;
}
catch (e) { }
try {
o = bitcoinjs_lib_1.payments.p2sh({ output: outputScript });
prefix = network.scriptHash;
}
catch (e) { }
if (!o || !o.hash || prefix === undefined) {
throw new Error(`unsupported outputScript`);
}
return toBase58Check(o.hash, prefix);
}
exports.fromOutputScript = fromOutputScript;
function toOutputScript(address, network) {
assert(networks_1.isZcash(network));
const { version, hash } = fromBase58Check(address);
if (version === network.pubKeyHash) {
return bitcoinjs_lib_1.payments.p2pkh({ hash }).output;
}
if (version === network.scriptHash) {
return bitcoinjs_lib_1.payments.p2sh({ hash }).output;
}
throw new Error(address + ' has no matching Script');
}
exports.toOutputScript = toOutputScript;
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cgRXJyb3IoYWRkcmVzcyArICcgaGFzIG5vIG1hdGNoaW5nIFNjcmlwdCcpO1xufVxuIl19