decrypter-worker.js 1.4 KB

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  1. 'use strict';
  2. Object.defineProperty(exports, '__esModule', {
  3. value: true
  4. });
  5. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
  6. var _globalWindow = require('global/window');
  7. var _globalWindow2 = _interopRequireDefault(_globalWindow);
  8. var _aesDecrypter = require('aes-decrypter');
  9. var _binUtils = require('./bin-utils');
  10. /**
  11. * Our web worker interface so that things can talk to aes-decrypter
  12. * that will be running in a web worker. the scope is passed to this by
  13. * webworkify.
  14. *
  15. * @param {Object} self
  16. * the scope for the web worker
  17. */
  18. var DecrypterWorker = function DecrypterWorker(self) {
  19. self.onmessage = function (event) {
  20. var data = event.data;
  21. var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
  22. var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
  23. var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
  24. /* eslint-disable no-new, handle-callback-err */
  25. new _aesDecrypter.Decrypter(encrypted, key, iv, function (err, bytes) {
  26. _globalWindow2['default'].postMessage((0, _binUtils.createTransferableMessage)({
  27. source: data.source,
  28. decrypted: bytes
  29. }), [bytes.buffer]);
  30. });
  31. /* eslint-enable */
  32. };
  33. };
  34. exports['default'] = function (self) {
  35. return new DecrypterWorker(self);
  36. };
  37. module.exports = exports['default'];