chainscript/lib/utils/verifyFiles.js

Client for chainscript.io

'use strict';

exports.__esModule = true;
exports['default'] = verifyFiles;

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _multihashes = require('multihashes');

var _multihashes2 = _interopRequireDefault(_multihashes);

var _bs58 = require('bs58');

var _bs582 = _interopRequireDefault(_bs58);

var _invertHash = require('invert-hash');

var _invertHash2 = _interopRequireDefault(_invertHash);

var _objectPath = require('object-path');

var _objectPath2 = _interopRequireDefault(_objectPath);

var _hashFile = require('./hashFile');

var _hashFile2 = _interopRequireDefault(_hashFile);

var INVERTED_HASH_MAP = _invertHash2['default'](_hashFile.HASH_MAP);

function verifyFiles(cwd, json, root) {
  var top = _objectPath2['default'].get(json, root || '');
  var hashes = Object.keys(top);
  var errors = [];

  var next = function next() {
    var _again = true;

    _function: while (_again) {
      hash = file = buf = algorithmName = algorithm = undefined;
      _again = false;

      if (hashes.length === 0) {
        if (errors.length > 0) {
          throw new Error(errors.map(function (err) {
            return err.message;
          }).join('\n'));
        }

        return true;
      }

      var hash = hashes.shift();
      var file = top[hash];
      var buf = new Buffer(_bs582['default'].decode(hash));
      var algorithmName = _multihashes2['default'].decode(buf).name;
      var algorithm = INVERTED_HASH_MAP[algorithmName];

      if (typeof algorithm === 'undefined') {
        errors.push(new Error('Unsupported algorithm: ' + algorithmName));
        _again = true;
        continue _function;
      }

      return _hashFile2['default'](_path2['default'].resolve(cwd, file), algorithm).then(function (h) {
        if (hash !== h) {
          errors.push(new Error('Mismatch: ' + file));
        }
      })['catch'](function (err) {
        return errors.push(err);
      }).then(next);
    }
  };

  return next();
}

module.exports = exports['default'];