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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/bip174/src/lib/converter/input

Просмотр файла: tapScriptSig.js

'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
const typeFields_1 = require('../../typeFields');
function decode(keyVal) {
  if (keyVal.key[0] !== typeFields_1.InputTypes.TAP_SCRIPT_SIG) {
    throw new Error(
      'Decode Error: could not decode tapScriptSig with key 0x' +
        keyVal.key.toString('hex'),
    );
  }
  if (keyVal.key.length !== 65) {
    throw new Error(
      'Decode Error: tapScriptSig has invalid key 0x' +
        keyVal.key.toString('hex'),
    );
  }
  if (keyVal.value.length !== 64 && keyVal.value.length !== 65) {
    throw new Error(
      'Decode Error: tapScriptSig has invalid signature in key 0x' +
        keyVal.key.toString('hex'),
    );
  }
  const pubkey = keyVal.key.slice(1, 33);
  const leafHash = keyVal.key.slice(33);
  return {
    pubkey,
    leafHash,
    signature: keyVal.value,
  };
}
exports.decode = decode;
function encode(tSig) {
  const head = Buffer.from([typeFields_1.InputTypes.TAP_SCRIPT_SIG]);
  return {
    key: Buffer.concat([head, tSig.pubkey, tSig.leafHash]),
    value: tSig.signature,
  };
}
exports.encode = encode;
exports.expected = '{ pubkey: Buffer; leafHash: Buffer; signature: Buffer; }';
function check(data) {
  return (
    Buffer.isBuffer(data.pubkey) &&
    Buffer.isBuffer(data.leafHash) &&
    Buffer.isBuffer(data.signature) &&
    data.pubkey.length === 32 &&
    data.leafHash.length === 32 &&
    (data.signature.length === 64 || data.signature.length === 65)
  );
}
exports.check = check;
function canAddToArray(array, item, dupeSet) {
  const dupeString =
    item.pubkey.toString('hex') + item.leafHash.toString('hex');
  if (dupeSet.has(dupeString)) return false;
  dupeSet.add(dupeString);
  return (
    array.filter(
      v => v.pubkey.equals(item.pubkey) && v.leafHash.equals(item.leafHash),
    ).length === 0
  );
}
exports.canAddToArray = canAddToArray;

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