@bitgo/utxo-lib/dist/src/bitgo/zcash/address.js

Client-side Bitcoin JavaScript library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fromBase58Check = fromBase58Check;
exports.toBase58Check = toBase58Check;
exports.fromOutputScript = fromOutputScript;
exports.toOutputScript = toOutputScript;
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 };
}
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);
}
function fromOutputScript(outputScript, network) {
    assert.ok((0, 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);
}
function toOutputScript(address, network) {
    assert.ok((0, 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');
}
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