☰

WhatsApp Web Message Spam

Adds a button to repeatedly send the same message in a certain interval.

  1. // ==UserScript==
  2. // @name         WhatsApp Web Message Spam
  3. // @namespace    graphen
  4. // @version      1.0.1
  5. // @description  Adds a button to repeatedly send the same message in a certain interval.
  6. // @author       Graphen
  7. // @license      MIT
  8. // @match        https://web.whatsapp.com/*
  9. // @icon         https://i.imgur.com/C6GToWK.png
  10. // @grant        none
  11. // ==/UserScript==
  12.  
  13. /* jshint esversion: 6 */
  14. (function() {
  15.   'use strict';
  16.  
  17. // auxiliary function for element insertion into dom tree
  18. function insertAfter(newNode, referenceNode) {
  19.     referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
  20. }
  21.  
  22. let repeatingSpamFunction = null;
  23. let message = '';
  24.  
  25. document.addEventListener("click", createSpamButton);
  26. document.addEventListener("keyup", editSpamButton);
  27.  
  28. function getInput() {
  29.     var input = document.querySelector('.p3_M1 ._13NKt');
  30.     if (!input) {
  31.         console.log("WA Spam: 'input' not found.");
  32.         return false;
  33.     }
  34.     else {
  35.         return input;
  36.     }
  37. }
  38.  
  39. function getSpamButton() {
  40.     let spamButton = document.getElementById('spamButton');
  41.     if (spamButton) {
  42.         return spamButton;
  43.     }
  44.     else {
  45.         console.log("#spamButton not found.");
  46.         return false;
  47.     }
  48. }
  49.  
  50. function createSpamButton() {
  51.   if (getSpamButton()) {
  52.     console.log("WA Spam: #spamButton already present.");
  53.     return;
  54.   }
  55.   let composeBar = document.querySelector('._1SEwr');
  56.   if (!composeBar) {
  57.     console.log("WA Spam: composeBar not found.");
  58.     return;
  59.   }
  60.  
  61.   let spamButton = document.createElement('button');
  62.   spamButton.setAttribute("id", "spamButton");
  63.   spamButton.innerHTML = 'SPAM';
  64.   spamButton.style.fontSize = '100%';
  65.   spamButton.style.padding = '10px 0';
  66.   spamButton.style.margin = '0px 3px 5px 3px';
  67.   //insertAfter(spamButton, composeBar.lastChild.previousSibling);
  68.   insertAfter(spamButton, composeBar);
  69.  
  70.   editSpamButton();
  71. }
  72.  
  73. function editSpamButton() {
  74.   let spamButton = getSpamButton();
  75.   let input = getInput();
  76.  
  77.   if (input.innerText.trim() === '' && message === '') {
  78.     spamButton.style.cursor = 'not-allowed';
  79.     spamButton.style.color = '#D3D3D3';
  80.     spamButton.onclick = void(0);
  81.   } else {
  82.     spamButton.style.cursor = 'pointer';
  83.     spamButton.style.color = '#039be5';
  84.     spamButton.onclick = function() {
  85.       doSpam(this);
  86.     };
  87.   }
  88. }
  89.  
  90. function doSpam(spamButton) {
  91.   let input = getInput();
  92.   if (spamButton.innerHTML === 'SPAM') {
  93.     if (input.innerText === '') {
  94.       window.alert('Please enter a text to be spammed before using the spam button.');
  95.       return;
  96.     }
  97.     let interval = 1000 * parseInt(prompt('Please enter spam-interval in seconds:', '3'));
  98.     if (!interval) {
  99.       spamButton.innerHTML = 'SPAM';
  100.       console.log('WA Spam: Interval input cancelled.');
  101.       return;
  102.     }
  103.     message = input.innerHTML;
  104.     spamButton.innerHTML = 'STOP';
  105.     sendMessage(); // start immediately
  106.       console.log("started spamming");
  107.     repeatingSpamFunction = window.setInterval(function(){
  108.       console.log("started repeated spamming");
  109.       sendMessage();
  110.     }, interval);
  111.   } else {
  112.     window.clearInterval(repeatingSpamFunction);
  113.     message= '';
  114.     spamButton.innerHTML = 'SPAM';
  115.   }
  116.   editSpamButton();
  117. }
  118.  
  119. function sendMessage() {
  120.   let input = getInput();
  121.   let evt = new Event('input', {
  122.     bubbles: true
  123.   });
  124.   input.innerHTML = message;
  125.   input.dispatchEvent(evt);
  126.  
  127.   document.getElementsByClassName('_4sWnG')[0].click(); // click send button
  128. }
  129. })();