@okxweb3/coin-bitcoin
Version:
@okxweb3/coin-bitcoin is a Bitcoin SDK for building Web3 wallets and applications. It supports BTC, BSV, DOGE, LTC, and TBTC, enabling private key management, transaction signing, address generation, and inscriptions like BRC-20, Runes, CAT, and Atomicals
160 lines • 6.34 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.p2wpkh = void 0;
const bcrypto = __importStar(require("../crypto"));
const networks_1 = require("../networks");
const bscript = __importStar(require("../script"));
const types_1 = require("../types");
const lazy = __importStar(require("./lazy"));
const crypto_lib_1 = require("@okxweb3/crypto-lib");
const OPS = bscript.OPS;
const EMPTY_BUFFER = Buffer.alloc(0);
function p2wpkh(a, opts) {
if (!a.address && !a.hash && !a.output && !a.pubkey && !a.witness)
throw new TypeError('Not enough data');
opts = Object.assign({ validate: true }, opts || {});
(0, types_1.typeforce)({
address: types_1.typeforce.maybe(types_1.typeforce.String),
hash: types_1.typeforce.maybe(types_1.typeforce.BufferN(20)),
input: types_1.typeforce.maybe(types_1.typeforce.BufferN(0)),
network: types_1.typeforce.maybe(types_1.typeforce.Object),
output: types_1.typeforce.maybe(types_1.typeforce.BufferN(22)),
pubkey: types_1.typeforce.maybe(types_1.isPoint),
signature: types_1.typeforce.maybe(bscript.isCanonicalScriptSignature),
witness: types_1.typeforce.maybe(types_1.typeforce.arrayOf(types_1.typeforce.Buffer)),
}, a);
const _address = lazy.value(() => {
const result = crypto_lib_1.base.bech32.decode(a.address);
const version = result.words.shift();
const data = crypto_lib_1.base.bech32.fromWords(result.words);
return {
version,
prefix: result.prefix,
data: Buffer.from(data),
};
});
const network = a.network || networks_1.bitcoin;
const o = { name: 'p2wpkh', network };
lazy.prop(o, 'address', () => {
if (!o.hash)
return;
const words = crypto_lib_1.base.bech32.toWords(o.hash);
words.unshift(0x00);
return crypto_lib_1.base.bech32.encode(network.bech32, words);
});
lazy.prop(o, 'hash', () => {
if (a.output)
return a.output.slice(2, 22);
if (a.address)
return _address().data;
if (a.pubkey || o.pubkey)
return bcrypto.hash160(a.pubkey || o.pubkey);
});
lazy.prop(o, 'output', () => {
if (!o.hash)
return;
return bscript.compile([OPS.OP_0, o.hash]);
});
lazy.prop(o, 'pubkey', () => {
if (a.pubkey)
return a.pubkey;
if (!a.witness)
return;
return a.witness[1];
});
lazy.prop(o, 'signature', () => {
if (!a.witness)
return;
return a.witness[0];
});
lazy.prop(o, 'input', () => {
if (!o.witness)
return;
return EMPTY_BUFFER;
});
lazy.prop(o, 'witness', () => {
if (!a.pubkey)
return;
if (!a.signature)
return;
return [a.signature, a.pubkey];
});
if (opts.validate) {
let hash = Buffer.from([]);
if (a.address) {
if (network && network.bech32 !== _address().prefix)
throw new TypeError('Invalid prefix or Network mismatch');
if (_address().version !== 0x00)
throw new TypeError('Invalid address version');
if (_address().data.length !== 20)
throw new TypeError('Invalid address data');
hash = _address().data;
}
if (a.hash) {
if (hash.length > 0 && !hash.equals(a.hash))
throw new TypeError('Hash mismatch');
else
hash = a.hash;
}
if (a.output) {
if (a.output.length !== 22 ||
a.output[0] !== OPS.OP_0 ||
a.output[1] !== 0x14)
throw new TypeError('Output is invalid');
if (hash.length > 0 && !hash.equals(a.output.slice(2)))
throw new TypeError('Hash mismatch');
else
hash = a.output.slice(2);
}
if (a.pubkey) {
const pkh = bcrypto.hash160(a.pubkey);
if (hash.length > 0 && !hash.equals(pkh))
throw new TypeError('Hash mismatch');
else
hash = pkh;
if (!(0, types_1.isPoint)(a.pubkey) || a.pubkey.length !== 33)
throw new TypeError('Invalid pubkey for p2wpkh');
}
if (a.witness) {
if (a.witness.length !== 2)
throw new TypeError('Witness is invalid');
if (!bscript.isCanonicalScriptSignature(a.witness[0]))
throw new TypeError('Witness has invalid signature');
if (!(0, types_1.isPoint)(a.witness[1]) || a.witness[1].length !== 33)
throw new TypeError('Witness has invalid pubkey');
if (a.signature && !a.signature.equals(a.witness[0]))
throw new TypeError('Signature mismatch');
if (a.pubkey && !a.pubkey.equals(a.witness[1]))
throw new TypeError('Pubkey mismatch');
const pkh = bcrypto.hash160(a.witness[1]);
if (hash.length > 0 && !hash.equals(pkh))
throw new TypeError('Hash mismatch');
}
}
return Object.assign(o, a);
}
exports.p2wpkh = p2wpkh;
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