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QOS-Handler

QOS-Handler(window param ver)

此脚本不应直接安装，它是供其他脚本使用的外部库。如果你需要使用该库，请在脚本元属性加入：// @require https://update.cn-greasyfork.org/scripts/430297/1128326/QOS-Handler.js 

  1. // ==UserScript==
  2. // @name         QOS-Handler
  3. // @namespace    http://greasyfork.org/
  4. // @version      0.2
  5. // @description  QOS-Handler(window param ver)
  6. // @author       Cosil.C
  7. // @grant        unsafeWindow
  8. // @license      GPL
  9. // ==/UserScript==
  10.  
  11. /* jshint esversion: 6 */
  12. /**
  13.  * @description 流控相关
  14.  */
  15. unsafeWindow.qos = {
  16.     /**
  17.      * @description 记录这次的访问时间戳，并返回是否超出限制
  18.      * @param sec 时间限制
  19.      * @param timesLimit 次数限制
  20.      * @returns sec秒内访问了超过timesLimit次 ? true : false
  21.      */
  22.     record: (sec, timesLimit) => {
  23.         sec = sec || 5;
  24.         timesLimit = timesLimit || 10;
  25.         console.log(`start qos recording...\nsec:${sec},timesLimit:${timesLimit}`);
  26.         let timestamp = new Date().getTime(), historyArr = document.defaultView.qos.getRecord();
  27.         historyArr.push(timestamp);
  28.         if (historyArr.length > timesLimit) {
  29.             let shift;
  30.             do {
  31.                 shift = parseInt(historyArr.shift());
  32.             } while (historyArr.length > timesLimit);
  33.             //
  34.             if (timestamp - shift <= sec * 1000) {
  35.                 let format = function (target) {
  36.                     return new Date(target).toTimeString().substr(0, 8);
  37.                 };
  38.                 console.log(`current:${format(timestamp)}, shift:${format(shift)}, interval(sec):${(timestamp - shift) / 1000}`);
  39.                 return true;
  40.             }
  41.         }
  42.         localStorage.setItem('historyArr', JSON.stringify(historyArr));
  43.         console.log('qos recorded');
  44.         return false;
  45.     },
  46.     /**
  47.      * @description 清除缓存中的记录
  48.      */
  49.     clearRecord: () => {
  50.         localStorage.removeItem('historyArr');
  51.     },
  52.     /**
  53.      * @description 获取记录的历史
  54.      * @returns 历史记录数组
  55.      */
  56.     getRecord: () => {
  57.         let historyArr;
  58.         try {
  59.             historyArr = JSON.parse(localStorage.getItem('historyArr') || '[]');
  60.         } catch (e) {
  61.             console.error(e);
  62.             console.error(`cause:${localStorage.getItem('historyArr')}`);
  63.             document.defaultView.qos.clearRecord();
  64.             historyArr = [];
  65.         }
  66.         return historyArr;
  67.     }
  68. };