app-info-parser2/src/zip.js

Exact info from apk or ipa file.

'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Unzip = require('isomorphic-unzip');

var _require = require('./utils'),
    isBrowser = _require.isBrowser,
    decodeNullUnicode = _require.decodeNullUnicode;

var Zip = function () {
  function Zip(file) {
    _classCallCheck(this, Zip);

    if (isBrowser()) {
      if (!(file instanceof window.Blob || typeof file.size !== 'undefined')) {
        throw new Error('Param error: [file] must be an instance of Blob or File in browser.');
      }
      this.file = file;
    } else {
      if (typeof file !== 'string') {
        throw new Error('Param error: [file] must be file path in Node.');
      }
      this.file = require('path').resolve(file);
    }
    this.unzip = new Unzip(this.file);
  }

  /**
   * 获取安装包文件，返回类型：{ <filename>: <Buffer|Blob> }
   * @param {Array} regexs // 匹配文件的正则表达式数组
   * @param {String} type // 输出文件类型，默认buffer，type='blob'时返回blob
   */


  _createClass(Zip, [{
    key: 'getEntries',
    value: function getEntries(regexs) {
      var _this = this;

      var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'buffer';

      regexs = regexs.map(function (regex) {
        return decodeNullUnicode(regex);
      });
      return new Promise(function (resolve, reject) {
        _this.unzip.getBuffer(regexs, { type: type }, function (err, buffers) {
          err ? reject(err) : resolve(buffers);
        });
      });
    }
  }, {
    key: 'getEntry',
    value: function getEntry(regex) {
      var _this2 = this;

      var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'buffer';

      regex = decodeNullUnicode(regex);
      return new Promise(function (resolve, reject) {
        _this2.unzip.getBuffer([regex], { type: type }, function (err, buffers) {
          err ? reject(err) : resolve(buffers[regex]);
        });
      });
    }
  }]);

  return Zip;
}();

module.exports = Zip;