@trezor/utxo-lib/lib/payments/p2pk.js

Client-side Bitcoin-like JavaScript library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.p2pk = p2pk;
const tslib_1 = require("tslib");
const tiny_secp256k1_1 = tslib_1.__importDefault(require("tiny-secp256k1"));
const networks_1 = require("../networks");
const bscript = tslib_1.__importStar(require("../script"));
const lazy = tslib_1.__importStar(require("./lazy"));
const types_1 = require("../types");
const {
  OPS
} = bscript;
function p2pk(a, opts) {
  if (!a.input && !a.output && !a.pubkey && !a.input && !a.signature) 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),
    output: types_1.typeforce.maybe(types_1.typeforce.Buffer),
    pubkey: types_1.typeforce.maybe(tiny_secp256k1_1.default.isPoint),
    signature: types_1.typeforce.maybe(bscript.isCanonicalScriptSignature),
    input: types_1.typeforce.maybe(types_1.typeforce.Buffer)
  }, a);
  const _chunks = lazy.value(() => bscript.decompile(a.input));
  const network = a.network || networks_1.bitcoin;
  const o = {
    name: 'p2pk',
    network
  };
  lazy.prop(o, 'output', () => {
    if (!a.pubkey) return;
    return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]);
  });
  lazy.prop(o, 'pubkey', () => {
    if (!a.output) return;
    return a.output.subarray(1, -1);
  });
  lazy.prop(o, 'signature', () => {
    if (!a.input) return;
    return _chunks()[0];
  });
  lazy.prop(o, 'input', () => {
    if (!a.signature) return;
    return bscript.compile([a.signature]);
  });
  lazy.prop(o, 'witness', () => {
    if (!o.input) return;
    return [];
  });
  if (opts.validate) {
    if (a.output) {
      if (a.output[a.output.length - 1] !== OPS.OP_CHECKSIG) throw new TypeError('Output is invalid');
      if (!tiny_secp256k1_1.default.isPoint(o.pubkey)) throw new TypeError('Output pubkey is invalid');
      if (a.pubkey && !a.pubkey.equals(o.pubkey)) throw new TypeError('Pubkey mismatch');
    }
    if (a.signature) {
      if (a.input && !a.input.equals(o.input)) throw new TypeError('Signature mismatch');
    }
    if (a.input) {
      if (_chunks().length !== 1) throw new TypeError('Input is invalid');
      if (!bscript.isCanonicalScriptSignature(o.signature)) throw new TypeError('Input has invalid signature');
    }
  }
  return Object.assign(o, a);
}
//# sourceMappingURL=p2pk.js.map