nei/lib/server/util.js

builder for nei platform

'use strict';
let exec = require('child_process').exec;
let os = require('os');

let _ = module.exports = {
  /**
   * 扩展对象
   */
  extend: function (o1, o2, override) {
    if (!o2) return o1;
    for (let i in o2) {
      if (override === true || o1[i] === undefined) o1[i] = o2[i];
    }
    return o1;
  },
  /**
   * 判断是否是对象
   */
  isObject: function (obj) {
    return ({}).toString.call(obj).toLowerCase() === '[object object]';
  },
  /**
   * 判断是否是布尔值
   */
  isBoolean: function (obj) {
    return ({}).toString.call(obj).toLowerCase() === '[object boolean]';
  },
  /**
   * 打开浏览器
   */
  openBrowser: function (url, callback) {
    let opener;
    let map = {
      darwin: 'open',
      win32: 'start'
    };
    opener = map[process.platform] || 'xdg-open';
    return exec('' + opener + ' ' + url, callback);
  },
  /**
   * 补全路由中的代理url
   */
  resolveUrl: function (path, params) {
    params = params || {};
    return path.replace(/\{(\w*)?\}/g, function (all, name) {
      return params[name];
    });
  },
  /**
   * 从reg2path的正则中获取参数
   */
  getParam: function (reg, path) {
    let ret = reg.exec(path);
    if (!ret) return false;

    let keys = reg.keys || [];
    let params = {};
    keys.forEach(function (key, index) {
      params[key.name] = ret[index + 1];
    });
    return params;
  },
  /**
   * 获取本地ip列表
   */
  getIPs: function () {
    let ifaces = os.networkInterfaces();
    let ips = [];
    for (let dev in ifaces) {
      ifaces[dev].forEach(function (details) {
        if (details.family === 'IPv4' && details.address !== '127.0.0.1') {
          return ips.push(details.address)
        }
      });
    }
    return ips;
  },
  /**
   * 获取完整路径，针对express
   */
  getFullUrl: function (req) {
    return req.protocol + '://' + req.get('host') + req.originalUrl;
  },
  /**
   * 比对两个query对象的关系
   */
  compareQuery: function (ruleQuery, reqQuery) {
    let keys = Object.keys(ruleQuery);
    let flag = true;
    for (let i = 0, len = keys.length; i < len; i++) {
      let key = keys[i];
      if (!reqQuery.hasOwnProperty(key)) return false;

      let ruleVal = ruleQuery[key];
      let reqVal = reqQuery[key];
      if ((ruleVal !== '' && ruleVal !== reqVal)) return false;
    }
    return flag;
  }
};