agora-edu-core/lib/stores/domain/common/cloud-drive/utils.js

Core APIs for building an online classroom

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.CloudDriveUtils = void 0;
var _jsMd = _interopRequireDefault(require("js-md5"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
class CloudDriveUtils {
  static calcResourceUuid(file) {
    if (file instanceof File) {
      return new Promise((resolve, reject) => {
        const fileReader = new FileReader();
        fileReader.readAsArrayBuffer(file); //计算文件md5
        fileReader.onload = evt => {
          if (evt.target && evt.target.result) {
            // TODO why MD5 twice?
            const md5Str = (0, _jsMd.default)(evt.target.result);
            return resolve(md5Str);
          }
          reject(new Error('unknown error: no result in filereader'));
        };
        fileReader.onerror = () => {
          reject(new Error(`Error reading ${file.name}`));
        };
      });
    } else {
      return Promise.resolve((0, _jsMd.default)(file));
    }
  }
}
exports.CloudDriveUtils = CloudDriveUtils;