InjectJS

Inject javascript into almost every website you visit.

Ajankohdalta 30.11.2022. Katso uusin versio.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         InjectJS
// @namespace    http://tampermonkey.net/
// @version      1.06
// @description  Inject javascript into almost every website you visit.
// @author       YTXaos
// @match        *://*/*
// @icon         https://raw.githubusercontent.com/YTXaos/InjectJS/main/assets/logo.png
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    "use strict";
    const url = location.href, origin = location.origin;
    function onURL(href, page) {
        return url === `${href}${page}`;
    }
    console.info("InjectJS Loaded. Press Ctrl + Q to topen");
    const options = JSON.parse(localStorage.getItem("injectjs-options")), popup = document.createElement("div"), style = document.createElement("style");
    fetch("https://raw.githubusercontent.com/YTXaos/InjectJS/main/assets/main.css").then(get => get.text()).then(set => style.innerHTML = set);
    popup.setAttribute("class", "js-injector-popup");
    popup.setAttribute("style", "display: none;");
    popup.innerHTML = `
    <label class="js-inject-header">
    <div class="js-logo-needle">.....</div>
    Inject<span class="js-logo">JS</span></label>
    <textarea placeholder="Your code here" class="js-code-inject" spellcheck="off" data-gramm="false" data-gramm_editor="false" data-enable-grammarly="false"></textarea>
    <button class="execute-code" disabled>Execute</button>`;
    document.head.prepend(style);
    document.body.prepend(popup);
    function OptionsPage() {
        document.querySelector("link").remove();
        document.querySelector("style").remove();
        document.title = "InjectJS Options";
        fetch("https://raw.githubusercontent.com/YTXaos/InjectJS/main/pages/options.html").then(get => get.text()).then(set => document.body.innerHTML = set);
    }
    const code = document.querySelector(".js-code-inject"), btn = document.querySelector(".execute-code");
    code.addEventListener("input", CheckCode);
    btn.addEventListener("click", InjectCode);
    function CheckCode() {
        const code = document.querySelector(".js-code-inject");
        const btn = document.querySelector(".execute-code");
        if(code.value.length < 5) {
            btn.setAttribute("disabled", "disabled");
        } else {
            btn.removeAttribute("disabled");
        }
    }
    function InjectCode() {
        const code = document.querySelector(".js-code-inject").value;
        const show_alerts = false;
        try {
            eval(code);
        } catch(e) {
            if(show_alerts) {
                alert(e.message);
            } else {
                console.error(e.message);
            }
        }
    }
    function ShowInjector(event) {
        dragElement(document.querySelector(".js-injector-popup"));
        function dragElement(elmnt) {
          var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
          if (document.querySelector(".js-inject-header")) {
            document.querySelector(".js-inject-header").onmousedown = dragMouseDown;
          } else {
            elmnt.onmousedown = dragMouseDown;
          }
          function dragMouseDown(e) {
            e = e || window.event;
            e.preventDefault();
            pos3 = e.clientX;
            pos4 = e.clientY;
            document.onmouseup = closeDragElement;
            document.onmousemove = elementDrag;
          }
          function elementDrag(e) {
            e = e || window.event;
            e.preventDefault();
            pos1 = pos3 - e.clientX;
            pos2 = pos4 - e.clientY;
            pos3 = e.clientX;
            pos4 = e.clientY;
            // set the element's new position:
            elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
            elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
          }
          function closeDragElement() {
            document.onmouseup = null;
            document.onmousemove = null;
          }
        }
        popup.classList.toggle("show");
    }
    if(onURL(origin, "/inject-js/options")) {
        OptionsPage();
    }
    document.addEventListener("keyup", function(e) {
        e.preventDefault();
        if(e.ctrlKey && e.which === 81) {
            ShowInjector();
        }
   });
})();