chainscript/lib/utils/hashPDF.js

Client for chainscript.io

'use strict';

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

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

var _stream = require('stream');

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

var _objectPath2 = _interopRequireDefault(_objectPath);

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

var _hashFile2 = _interopRequireDefault(_hashFile);

var _writeToPDF = require('./writeToPDF');

var _writeToPDF2 = _interopRequireDefault(_writeToPDF);

function hashPDF(input) {
  var algorithm = arguments.length <= 1 || arguments[1] === undefined ? 'sha256' : arguments[1];
  var root = arguments.length <= 2 || arguments[2] === undefined ? 'content.hash' : arguments[2];

  return new Promise(function (resolve, reject) {
    var proxy = new _stream.PassThrough();

    _writeToPDF2['default'](input, proxy)['catch'](reject);

    _hashFile2['default'](proxy, algorithm).then(function (hash) {
      if (root) {
        var json = {};
        _objectPath2['default'].set(json, root, hash);
        resolve(json);
        return;
      }
      resolve(hash);
    })['catch'](reject);
  });
}

module.exports = exports['default'];