bgoldjs-lib-bit/src/templates/witnessscripthash/input.js

Client-side Bitcoin Gold JavaScript library

'use strict';
// <scriptSig> {serialized scriptPubKey script}
Object.defineProperty(exports, '__esModule', { value: true });
const bscript = require('../../script');
const typeforce = require('typeforce');
const p2ms = require('../multisig');
const p2pk = require('../pubkey');
const p2pkh = require('../pubkeyhash');
function check(chunks, allowIncomplete) {
  typeforce(typeforce.Array, chunks);
  if (chunks.length < 1) return false;
  const witnessScript = chunks[chunks.length - 1];
  if (!Buffer.isBuffer(witnessScript)) return false;
  const witnessScriptChunks = bscript.decompile(witnessScript);
  // is witnessScript a valid script?
  if (!witnessScriptChunks || witnessScriptChunks.length === 0) return false;
  const witnessRawScriptSig = bscript.compile(chunks.slice(0, -1));
  // match types
  if (
    p2pkh.input.check(witnessRawScriptSig) &&
    p2pkh.output.check(witnessScriptChunks)
  )
    return true;
  if (
    p2ms.input.check(witnessRawScriptSig, allowIncomplete) &&
    p2ms.output.check(witnessScriptChunks)
  )
    return true;
  if (
    p2pk.input.check(witnessRawScriptSig) &&
    p2pk.output.check(witnessScriptChunks)
  )
    return true;
  return false;
}
exports.check = check;
check.toJSON = () => {
  return 'witnessScriptHash input';
};