JS腳本實現定時到網站上簽到/簽退功能
之前介紹過使用temperMonkey屏蔽CSDN廣告的方法,主要就是要針對性地分析網站結構,然后用代碼去改變或者操作DOM。今天也一樣,我們需要觀察網頁結構,找到我們要操作的按鈕,觸發他的click事件就可以了。下面以公司打卡簽到的網站為例,做一些壞壞的事情。本文讀者最好有一定的HTML和JavaScript基礎。
首先,想象一下你去簽到需要做什么:
打開網站 登陸 點擊“簽到”按鈕然后每一步我們都可以讓代碼幫我們去做。
0. 如何定時
這段代碼是核心,就是根據當前時間和設定的時間做差值,來確定定時器的值看懂這段代碼,后面的就都容易了。都是在利用定時器觸發callback。
// user settingconst SIGN_IN_TIME = '09:30:00'; // 簽到時間const SIGN_OUT_TIME = '20:00:00'; // 簽退時間// code implementationlogTime('code start running');const now = new Date();const today = now.getFullYear() + '-' + (now.getMonth() + 1) + '-' + now.getDate();var signInTime = +new Date(`${today} ${SIGN_IN_TIME}`);logTime('signInTime', new Date(signInTime));var signOutTime = +new Date(`${today} ${SIGN_OUT_TIME}`);logTime('signOutTime', new Date(signOutTime));// diff in or outif (now > signInTime && now < signOutTime) { // ready to sign out for today console.log('Seconds to sign out for today: ' + (signOutTime - now) / 1000); setTimeout(callback, signOutTime - now);} else { // ready to sign in for tomorrow signInTime = +signInTime + 60 * 60 * 24 * 1000; console.log('Seconds to sign in for tomorrow: ' + (signInTime - now) / 1000); setTimeout(callback, signInTime - now);}function logTime(str, time = new Date()) { console.log(`${str} -> ${time.getHours()}:${time.getMinutes()}:${time.getSeconds()}`);}
1. 定時自動打開網站
因為大多數網站都有,“長時間未操作-自動退出”的設置。所以我們要在需要打卡的時候再打開網站。在電腦本地跑一個程序,使用定時器。這里跑一個node程序:
const open = require(’open’);logTime('Start Runing');// user settingconst SIGN_IN_TIME = '09:30:00';const SIGN_OUT_TIME = '20:20:00';// code implementationconst openBrowser = async () => { await open(’http://172.10.80.42’);};logTime('code start running');const now = new Date();const today = now.getFullYear() + '-' + (now.getMonth() + 1) + '-' + now.getDate();var signInTime = +new Date(`${today} ${SIGN_IN_TIME}`);logTime('signInTime', new Date(signInTime));var signOutTime = +new Date(`${today} ${SIGN_OUT_TIME}`);logTime('signOutTime', new Date(signOutTime));// diff in or outif (now > signInTime && now < signOutTime) { // ready to sign out for today console.log('Seconds to sign out for today: ' + (signOutTime - now) / 1000); setTimeout(openBrowser, signOutTime - now);} else { // ready to sign in for tomorrow signInTime = +signInTime + 60 * 60 * 24 * 1000; console.log('Seconds to sign in for tomorrow: ' + (signInTime - now) / 1000); setTimeout(openBrowser, signInTime - now);}function logTime(str, time = new Date()) { console.log(`${str} -> ${time.getHours()}:${time.getMinutes()}:${time.getSeconds()}`);}
2. 自動登錄
這個重點還是在于找到需要填入內容的DOM元素
(function() { ’use strict’; // login document.querySelector('#loginid').value = '用戶名'; document.querySelector('#userpassword').value = '密碼'; document.querySelector('#login').click();})();
3. 定時點擊按鈕
這一步最重要的是要準確找到按鈕,檢查元素慢慢查找吧。其次,設定好簽到和簽退的時間,只有固定時間才會自動簽到,防止每次登陸進來自動簽到或簽退,這樣太頻繁被發現。
(function() { ’use strict’; // user setting const SIGN_IN_TIME = '09:00:00'; const SIGN_OUT_TIME = '21:00:00'; // code implementation logTime('code start running'); const now = new Date(); const today = now.getFullYear()+'-'+(now.getMonth()+1)+'-'+now.getDate(); var signInTime = +new Date(`${today} ${SIGN_IN_TIME}`); logTime('signInTime', new Date(signInTime)); var signOutTime = +new Date(`${today} ${SIGN_OUT_TIME}`); logTime('signOutTime', new Date(signOutTime)); // diff in or out if(now > signInTime && now < signOutTime) { // ready to sign out for today console.log('Seconds to sign out for today: ' + (signOutTime - now)/1000); setTimeout(signInorSignOut, signOutTime - now); } else { // ready to sign in for tomorrow signInTime = +signInTime + 60 * 60 * 24 * 1000; console.log('Seconds to sign in for tomorrow: ' + (signInTime - now)/1000); setTimeout(signInorSignOut, signInTime - now); } // signInorSignOut function signInorSignOut(){ logTime(`signInButton clicked!`); // 重點就在這兒了,找到網站的簽到按鈕#signInButton,并觸發他的點擊事件 document.querySelector('#signInButton').click(); } function logTime(str, time=new Date()){ console.log(`${str} -> ${time.getHours()}:${time.getMinutes()}:${time.getSeconds()}`); }})();
4. 結束
一套操作,打完收工。每天下班的時候,不管是提前溜還是晚點到。記得本地開一下程序:
node timer.js
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