@okxweb3/coin-bitcoin
Version:
@ok/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.
217 lines • 8.55 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.p2wsh = 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 coin_base_1 = require("@okxweb3/coin-base");
const OPS = bscript.OPS;
const EMPTY_BUFFER = Buffer.alloc(0);
function stacksEqual(a, b) {
if (a.length !== b.length)
return false;
return a.every((x, i) => {
return x.equals(b[i]);
});
}
function chunkHasUncompressedPubkey(chunk) {
if (Buffer.isBuffer(chunk) &&
chunk.length === 65 &&
chunk[0] === 0x04 &&
(0, types_1.isPoint)(chunk)) {
return true;
}
else {
return false;
}
}
function p2wsh(a, opts) {
if (!a.address && !a.hash && !a.output && !a.redeem && !a.witness)
throw new TypeError('Not enough data');
opts = Object.assign({ validate: true }, opts || {});
(0, types_1.typeforce)({
network: types_1.typeforce.maybe(types_1.typeforce.Object),
address: types_1.typeforce.maybe(types_1.typeforce.String),
hash: types_1.typeforce.maybe(types_1.typeforce.BufferN(32)),
output: types_1.typeforce.maybe(types_1.typeforce.BufferN(34)),
redeem: types_1.typeforce.maybe({
input: types_1.typeforce.maybe(types_1.typeforce.Buffer),
network: types_1.typeforce.maybe(types_1.typeforce.Object),
output: types_1.typeforce.maybe(types_1.typeforce.Buffer),
witness: types_1.typeforce.maybe(types_1.typeforce.arrayOf(types_1.typeforce.Buffer)),
}),
input: types_1.typeforce.maybe(types_1.typeforce.BufferN(0)),
witness: types_1.typeforce.maybe(types_1.typeforce.arrayOf(types_1.typeforce.Buffer)),
}, a);
const _address = lazy.value(() => {
const result = coin_base_1.base.bech32.decode(a.address);
const version = result.words.shift();
const data = coin_base_1.base.bech32.fromWords(result.words);
return {
version,
prefix: result.prefix,
data: Buffer.from(data),
};
});
const _rchunks = lazy.value(() => {
return bscript.decompile(a.redeem.input);
});
let network = a.network;
if (!network) {
network = (a.redeem && a.redeem.network) || networks_1.bitcoin;
}
const o = { network };
lazy.prop(o, 'address', () => {
if (!o.hash)
return;
const words = coin_base_1.base.bech32.toWords(o.hash);
words.unshift(0x00);
return coin_base_1.base.bech32.encode(network.bech32, words);
});
lazy.prop(o, 'hash', () => {
if (a.output)
return a.output.slice(2);
if (a.address)
return _address().data;
if (o.redeem && o.redeem.output)
return bcrypto.sha256(o.redeem.output);
});
lazy.prop(o, 'output', () => {
if (!o.hash)
return;
return bscript.compile([OPS.OP_0, o.hash]);
});
lazy.prop(o, 'redeem', () => {
if (!a.witness)
return;
return {
output: a.witness[a.witness.length - 1],
input: EMPTY_BUFFER,
witness: a.witness.slice(0, -1),
};
});
lazy.prop(o, 'input', () => {
if (!o.witness)
return;
return EMPTY_BUFFER;
});
lazy.prop(o, 'witness', () => {
if (a.redeem &&
a.redeem.input &&
a.redeem.input.length > 0 &&
a.redeem.output &&
a.redeem.output.length > 0) {
const stack = bscript.toStack(_rchunks());
o.redeem = Object.assign({ witness: stack }, a.redeem);
o.redeem.input = EMPTY_BUFFER;
return [].concat(stack, a.redeem.output);
}
if (!a.redeem)
return;
if (!a.redeem.output)
return;
if (!a.redeem.witness)
return;
return [].concat(a.redeem.witness, a.redeem.output);
});
lazy.prop(o, 'name', () => {
const nameParts = ['p2wsh'];
if (o.redeem !== undefined && o.redeem.name !== undefined)
nameParts.push(o.redeem.name);
return nameParts.join('-');
});
if (opts.validate) {
let hash = Buffer.from([]);
if (a.address) {
if (_address().prefix !== network.bech32)
throw new TypeError('Invalid prefix or Network mismatch');
if (_address().version !== 0x00)
throw new TypeError('Invalid address version');
if (_address().data.length !== 32)
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 !== 34 ||
a.output[0] !== OPS.OP_0 ||
a.output[1] !== 0x20)
throw new TypeError('Output is invalid');
const hash2 = a.output.slice(2);
if (hash.length > 0 && !hash.equals(hash2))
throw new TypeError('Hash mismatch');
else
hash = hash2;
}
if (a.redeem) {
if (a.redeem.network && a.redeem.network !== network)
throw new TypeError('Network mismatch');
if (a.redeem.input &&
a.redeem.input.length > 0 &&
a.redeem.witness &&
a.redeem.witness.length > 0)
throw new TypeError('Ambiguous witness source');
if (a.redeem.output) {
if (bscript.decompile(a.redeem.output).length === 0)
throw new TypeError('Redeem.output is invalid');
const hash2 = bcrypto.sha256(a.redeem.output);
if (hash.length > 0 && !hash.equals(hash2))
throw new TypeError('Hash mismatch');
else
hash = hash2;
}
if (a.redeem.input && !bscript.isPushOnly(_rchunks()))
throw new TypeError('Non push-only scriptSig');
if (a.witness &&
a.redeem.witness &&
!stacksEqual(a.witness, a.redeem.witness))
throw new TypeError('Witness and redeem.witness mismatch');
if ((a.redeem.input && _rchunks().some(chunkHasUncompressedPubkey)) ||
(a.redeem.output &&
(bscript.decompile(a.redeem.output) || []).some(chunkHasUncompressedPubkey))) {
throw new TypeError('redeem.input or redeem.output contains uncompressed pubkey');
}
}
if (a.witness && a.witness.length > 0) {
const wScript = a.witness[a.witness.length - 1];
if (a.redeem && a.redeem.output && !a.redeem.output.equals(wScript))
throw new TypeError('Witness and redeem.output mismatch');
if (a.witness.some(chunkHasUncompressedPubkey) ||
(bscript.decompile(wScript) || []).some(chunkHasUncompressedPubkey))
throw new TypeError('Witness contains uncompressed pubkey');
}
}
return Object.assign(o, a);
}
exports.p2wsh = p2wsh;
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