@scrypt-inc/bitcoinjs-lib
Version:
Client-side Bitcoin JavaScript library
179 lines (178 loc) • 6.77 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;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.p2pkh = p2pkh;
const bcrypto = __importStar(require('../crypto.cjs'));
const networks_js_1 = require('../networks.cjs');
const bscript = __importStar(require('../script.cjs'));
const types_js_1 = require('../types.cjs');
const lazy = __importStar(require('./lazy.cjs'));
const bs58check_1 = __importDefault(require("bs58check"));
const tools = __importStar(require("uint8array-tools"));
const v = __importStar(require("valibot"));
const OPS = bscript.OPS;
// input: {signature} {pubkey}
// output: OP_DUP OP_HASH160 {hash160(pubkey)} OP_EQUALVERIFY OP_CHECKSIG
/**
* Creates a Pay-to-Public-Key-Hash (P2PKH) payment object.
*
* @param a - The payment object containing the necessary data.
* @param opts - Optional payment options.
* @returns The P2PKH payment object.
* @throws {TypeError} If the required data is not provided or if the data is invalid.
*/
function p2pkh(a, opts) {
if (!a.address && !a.hash && !a.output && !a.pubkey && !a.input)
throw new TypeError('Not enough data');
opts = Object.assign({ validate: true }, opts || {});
v.parse(v.partial(v.object({
network: v.object({}),
address: v.string(),
hash: types_js_1.Hash160bitSchema,
output: (0, types_js_1.NBufferSchemaFactory)(25),
pubkey: v.custom(types_js_1.isPoint),
signature: v.custom(bscript.isCanonicalScriptSignature),
input: types_js_1.BufferSchema,
})), a);
const _address = lazy.value(() => {
const payload = bs58check_1.default.decode(a.address);
const version = tools.readUInt8(payload, 0);
const hash = payload.slice(1);
return { version, hash };
});
const _chunks = lazy.value(() => {
return bscript.decompile(a.input);
});
const network = a.network || networks_js_1.bitcoin;
const o = { name: 'p2pkh', network };
lazy.prop(o, 'address', () => {
if (!o.hash)
return;
const payload = new Uint8Array(21);
tools.writeUInt8(payload, 0, network.pubKeyHash);
payload.set(o.hash, 1);
return bs58check_1.default.encode(payload);
});
lazy.prop(o, 'hash', () => {
if (a.output)
return a.output.slice(3, 23);
if (a.address)
return _address().hash;
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_DUP,
OPS.OP_HASH160,
o.hash,
OPS.OP_EQUALVERIFY,
OPS.OP_CHECKSIG,
]);
});
lazy.prop(o, 'pubkey', () => {
if (!a.input)
return;
return _chunks()[1];
});
lazy.prop(o, 'signature', () => {
if (!a.input)
return;
return _chunks()[0];
});
lazy.prop(o, 'input', () => {
if (!a.pubkey)
return;
if (!a.signature)
return;
return bscript.compile([a.signature, a.pubkey]);
});
lazy.prop(o, 'witness', () => {
if (!o.input)
return;
return [];
});
// extended validation
if (opts.validate) {
let hash = Uint8Array.from([]);
if (a.address) {
if (_address().version !== network.pubKeyHash)
throw new TypeError('Invalid version or Network mismatch');
if (_address().hash.length !== 20)
throw new TypeError('Invalid address');
hash = _address().hash;
}
if (a.hash) {
if (hash.length > 0 && tools.compare(hash, a.hash) !== 0)
throw new TypeError('Hash mismatch');
else
hash = a.hash;
}
if (a.output) {
if (a.output.length !== 25 ||
a.output[0] !== OPS.OP_DUP ||
a.output[1] !== OPS.OP_HASH160 ||
a.output[2] !== 0x14 ||
a.output[23] !== OPS.OP_EQUALVERIFY ||
a.output[24] !== OPS.OP_CHECKSIG)
throw new TypeError('Output is invalid');
const hash2 = a.output.slice(3, 23);
if (hash.length > 0 && tools.compare(hash, hash2) !== 0)
throw new TypeError('Hash mismatch');
else
hash = hash2;
}
if (a.pubkey) {
const pkh = bcrypto.hash160(a.pubkey);
if (hash.length > 0 && tools.compare(hash, pkh) !== 0)
throw new TypeError('Hash mismatch');
else
hash = pkh;
}
if (a.input) {
const chunks = _chunks();
if (chunks.length !== 2)
throw new TypeError('Input is invalid');
if (!bscript.isCanonicalScriptSignature(chunks[0]))
throw new TypeError('Input has invalid signature');
if (!(0, types_js_1.isPoint)(chunks[1]))
throw new TypeError('Input has invalid pubkey');
if (a.signature &&
tools.compare(a.signature, chunks[0]) !== 0)
throw new TypeError('Signature mismatch');
if (a.pubkey && tools.compare(a.pubkey, chunks[1]) !== 0)
throw new TypeError('Pubkey mismatch');
const pkh = bcrypto.hash160(chunks[1]);
if (hash.length > 0 && tools.compare(hash, pkh) !== 0)
throw new TypeError('Hash mismatch');
}
}
return Object.assign(o, a);
}