Remove all bots from a kahoot game.
目前為
// ==UserScript==
// @name Kahoot AntiBot
// @namespace http://tampermonkey.net/
// @version 2.6.12
// @description Remove all bots from a kahoot game.
// @author theusaf
// @match *://play.kahoot.it/*
// @exclude *://play.kahoot.it/v2/assets/*
// @grant none
// @run-at document-start
// ==/UserScript==
if(window.fireLoaded){
throw "[ANTIBOT] - page is loaded";
}
if(window.localStorage.extraCheck){
console.log("[ANTIBOT] - Detected PIN Checker");
}
if(window.localStorage.kahootThemeScript){
console.log("[ANTIBOT] - Detected KonoSuba Theme");
}
document.write("");
window.url = window.location.href;
window.page = new XMLHttpRequest();
window.page.open("GET",window.url);
window.page.send();
window.page.onload = ()=>{
let scriptURL = window.page.response.match(/<\/script><script\ .*?vendors.*?><\/script>/mg)[0].substr(9).split("src=\"")[1].split("\"")[0];
let script2 = window.page.response.match(/<\/script><script src=\"\/v2\/assets\/js\/main.*?(?=\")/mg)[0].substr(22);
let originalPage = window.page.response.replace(/<\/script><script\ .*?vendors.*?><\/script>/mg,"</script>");
originalPage = originalPage.replace(/<\/script><script src=\"\/v2\/assets\/js\/main.*?(?=\")/mg,"</script><script src=\"data:text/javascript,");
let script = new XMLHttpRequest();
script.open("GET","https://play.kahoot.it/"+scriptURL);
script.send();
script.onload = ()=>{
let patchedScript =script.response.replace(".onMessage=function(e,n){",".onMessage=function(e,n){window.globalMessageListener(e,n);");
const code = ()=>{
// create watermark
const container = document.createElement("div");
container.id = "antibotwtr";
const waterMark = document.createElement("p");
waterMark.innerHTML = "v2.6.12 @theusaf";
const botText = document.createElement("p");
botText.innerHTML = "0";
botText.id = "killcount";
const menu = document.createElement("details");
menu.innerHTML = `<summary>config</summary>
<input type="checkbox" id="antibot.config.timeout"></input>
<label id="antibot.config.timeoutlbl" onclick="window.specialData.config.timeout = !window.specialData.config.timeout;if(!localStorage.antibotConfig){localStorage.antibotConfig = JSON.stringify({});}const a = JSON.parse(localStorage.antibotConfig);a.timeout = window.specialData.config.timeout;localStorage.antibotConfig = JSON.stringify(a);" for="antibot.config.timeout" title="Blocks answers that are sent before 0.5 seconds after the question starts">Min Answer Timeout</label>
<input type="checkbox" id="antibot.config.looksRandom" checked="checked"></input>
<label id="antibot.config.lookrandlbl" onclick="window.specialData.config.looksRandom = !window.specialData.config.looksRandom;if(!localStorage.antibotConfig){localStorage.antibotConfig = JSON.stringify({});}const a = JSON.parse(localStorage.antibotConfig);a.looksRandom = window.specialData.config.looksRandom;localStorage.antibotConfig = JSON.stringify(a);" for="antibot.config.looksRandom" title="Blocks names that seem 'random', such as 'OmEGaboOt'">Block Random Names</label>
<label for="antibot.config.teamtimeout" title="Add extra seconds to the question.">Additional Question Time</label>
<input type="number" step="1" value="0" id="antibot.config.teamtimeout" onchange="window.specialData.config.additionalQuestionTime = Number(document.getElementById('antibot.config.teamtimeout').value);if(!localStorage.antibotConfig){localStorage.antibotConfig = JSON.stringify({});}const a = JSON.parse(localStorage.antibotConfig);a.teamtime = window.specialData.config.additionalQuestionTime;localStorage.antibotConfig = JSON.stringify(a);">;
<label for="antibot.config.percent" title="Specify the match percentage.">Match Percent</label>
<input type="number" step="0.1" value="0.6" id="antibot.config.percent" onchange="window.specialData.config.percent = Number(document.getElementById('antibot.config.percent').value);if(!localStorage.antibotConfig){localStorage.antibotConfig = JSON.stringify({});}const a = JSON.parse(localStorage.antibotConfig);a.percent = window.specialData.config.percent;localStorage.antibotConfig = JSON.stringify(a);">`;
const styles = document.createElement("style");
styles.type = "text/css";
styles.innerHTML = `#antibotwtr{
position: fixed;
bottom: 100px;
right: 100px;
font-size: 1rem;
opacity: 0.4;
transition: opacity 0.4s;
z-index: 5000;
}
#antibotwtr:hover{
opacity: 1;
}
#antibotwtr p{
display: inline-block;
}
#killcount{
margin-left: 0.25rem;
background: black;
border-radius: 0.5rem;
color: white;
}
#antibotwtr details{
background: grey;
}
#antibotwtr input[type="checkbox"]{
display: none;
}
#antibotwtr label{
color: red;
display: block;
}
#antibotwtr input:checked+label{
color: green;
}`;
container.append(waterMark,botText,menu);
setTimeout(function(){
if(document.body.innerText.split("\n").length < 8){ // assume broken. (just the water mark)
const temp = document.createElement("template");
temp.innerHTML = `<div style="color: red; position: fixed; left: 0; top: 0; font-size: 1.5rem;line-height:2rem">
<h1>[ANTIBOT] - Detected broken page. I haven't actually foud a way to fix this issue completely yet, so do one of the following:</h1>
<hr/>
<h1>Go back to <a href="https://create.kahoot.it/details/${location.search.split("quizId=")[1].split("&")[0]}">the kahoot launch screen</a>.</h1><br/>
<h1>Clear the cache of this page and then reload.</h1><br/>
<h1>Disable Kahoot AntiBot, reload the page, then re-enable Kahoot Antibot and reload the page again</h1>
</div>`;
document.body.append(temp.content.cloneNode(true));
delete localStorage["kahoot-quizPins"];
}
},2000);
document.body.append(container,styles);
window.isUsingNamerator = false;
window.cachedUsernames = [];
window.confirmedPlayers = [];
window.cachedData = {};
window.loggedPlayers = {};
window.specialData = {
startTime: 0,
lastFakeLogin: 0,
lastFakeUserID: 0,
lastFakeUserName: "",
config:{
timeout: false,
looksRandom: true,
additionalQuestionTime: null,
percent: 0.6
}
};
// loading localStorage info
if(localStorage.antibotConfig){
const a = JSON.parse(localStorage.antibotConfig);
if(a.timeout){
const t = document.getElementById("antibot.config.timeoutlbl");
if(t){
t.click();
}
}
if(!a.looksRandom){
const t = document.getElementById("antibot.config.lookrandlbl");
if(t){
t.click();
}
}
if(a.teamtime){
document.getElementById("antibot.config.teamtimeout").value = Number(a.teamtime);
window.specialData.config.additionalQuestionTime = Number(a.teamtime);
}
if(a.percent){
document.getElementById("antibot.config.percent").value = Number(a.percent);
window.specialData.config.percent = Number(a.percent);
}
}
var messageId = 0;
var clientId = null;
var pin = null;
// for names like KaHOotSmaSH
function looksRandom(name){
// assumes player names have either all caps, no caps, or up to 3 capital letters
if(name.replace(/[A-Z]/gm,"").length == 0){
return false;
}
if(name.replace(/[a-z]/gm,"").length == 0){
return false;
}
if(name.length - name.replace(/[A-Z]/gm,"").length < 4){
return false;
}
return true;
}
// for names like AmazingRobot32
function isFakeValid(name){
let caps = name.length - name.replace(/[A-Z]/g, '').length;
if(caps !== 2){ /*has less than 2 or more than 2 capitals*/
return false;
}
if (name.substr(0,1).replace(/[A-Z]/g,'').length === 1){/*first char is not a capital*/
return false;
}
if (name.substr(1,2).replace(/[A-Z]/g,'').length != 2){/*next few char have capitals*/
return false;
}
if(name.substr(name.length -2,2).replace(/[A-Z]/g,'').length !== 2){ /*last few char have acapital*/
return false;
}
if(name.replace(/([a-z]|[0-9])/ig,'').length > 0){ /*hasnon-letter/number chars*/
return false;
}
return true;
}
function similarity(s1, s2) {
// remove numbers from name if name is not only a number
if(!isNaN(s1) && typeof(s1) != "object" && !window.isUsingNamerator){
s1 = s1.replace(/[0-9]/mg,"");
}
if(!isNaN(s2) && typeof(s2) != "object" && !window.isUsingNamerator){
s2 = s2.replace(/[0-9]/mg,"");
}
if(!s2){
return 0;
}
// if is a number of the same length
if(s1){
if(!isNaN(s2) && !isNaN(s1) && s1.length == s2.length){
return 1;
}
}
// apply namerator rules
if(window.isUsingNamerator){
let caps = s2.length - s2.replace(/[A-Z]/g, '').length;
if(caps !== 2){ /*has less than 2 or more than 2 capitals*/
return -1;
}
if (s2.substr(0,1).replace(/[A-Z]/g,'').length === 1){/*first char is not a capital*/
return -1;
}
if (s2.substr(1,2).replace(/[A-Z]/g,'').length != 2){/*next few char have capitals*/
return -1;
}
if(s2.substr(s2.length -2,2).replace(/[A-Z]/g,'').length !== 2){ /*last few char have acapital*/
return -1;
}
if(s2.replace(/[a-z]/ig,'').length > 0){ /*hasnon-letter chars*/
return -1;
}
}
if(!s1){
return;
}
// ignore case
s1 = s1.toLowerCase();
s2 = s2.toLowerCase();
var longer = s1;
var shorter = s2;
// begin math to determine similarity
if (s1.length < s2.length) {
longer = s2;
shorter = s1;
}
var longerLength = longer.length;
if (longerLength == 0) {
return 1.0;
}
return (longerLength - editDistance(longer, shorter)) / parseFloat(longerLength);
}
function editDistance(s1, s2) {
s1 = s1.toLowerCase();
s2 = s2.toLowerCase();
var costs = new Array();
for (var i = 0; i <= s1.length; i++) {
var lastValue = i;
for (var j = 0; j <= s2.length; j++) {
if (i == 0){
costs[j] = j;
}
else {
if (j > 0) {
var newValue = costs[j - 1];
if (s1.charAt(i - 1) != s2.charAt(j - 1)){
newValue = Math.min(Math.min(newValue,lastValue),costs[j]) + 1;
}
costs[j - 1] = lastValue;
lastValue = newValue;
}
}
}
if (i > 0){
costs[s2.length] = lastValue;
}
}
return costs[s2.length];
}
function setup(){
var launch_button =document.querySelectorAll("[data-functional-selector=\"launch-button\"]")[0];
if(launch_button){
console.warn("[ANTIBOT] - launch button found!");
}else{
setTimeout(setup,1000);
}
}
setup();
function clickName(name){
const names = document.querySelectorAll("[data-functional-selector=player-name]");
names.forEach(o=>{
if(o.innerText == name){
return o.click();
}
});
}
function createKickPacket(id){
messageId++;
return [{
channel: "/service/player",
clientId: clientId,
id: String(Number(messageId)),
data: {
cid: String(id),
content: JSON.stringify({
kickCode: 1,
quizType: "quiz"
}),
gameid: pin,
host: "play.kahoot.it",
id: 10,
type: "message"
},
ext: {}
}];
}
function determineEvil(player,socket){
if(window.cachedUsernames.length == 0){
if(similarity(null,player.name) == -1){
var packet = createKickPacket(player.cid);
socket.send(JSON.stringify(packet));
console.warn(`[ANTIBOT] - Bot ${player.name} has been banished`);
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
delete window.cachedData[player.cid];
throw "[ANTIBOT] - Bot banned. Dont add";
}
window.cachedUsernames.push({name: player.name, id:player.cid, time: 10, banned: false});
window.loggedPlayers[player.cid] = true;
}else{
var removed = false;
for(var i in window.cachedUsernames){
if(window.confirmedPlayers.includes(window.cachedUsernames[i].name)){
continue;
}
if(similarity(window.cachedUsernames[i].name,player.name) == -1){
removed = true;
var packet1 = createKickPacket(player.cid);
socket.send(JSON.stringify(packet1));
console.warn(`[ANTIBOT] - Bot ${player.name} has been banished`);
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
delete window.cachedData[player.cid];
throw "[ANTIBOT] - Bot banned. Dont add";
}
if(similarity(window.cachedUsernames[i].name,player.name) >= window.specialData.config.percent){
removed = true;
let packet1 = createKickPacket(player.cid);
socket.send(JSON.stringify(packet1));
if(!window.cachedUsernames[i].banned){
var packet2 =createKickPacket(window.cachedUsernames[i].id);
window.cachedUsernames[i].banned = true;
socket.send(JSON.stringify(packet2));
clickName(window.cachedUsernames[i].name);
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
}
window.cachedUsernames[i].time = 10;
console.warn(`[ANTIBOT] - Bots ${player.name} and ${window.cachedUsernames[i].name} have been banished`);
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
delete window.cachedData[player.cid];
delete window.cachedData[window.cachedUsernames[i].id];
throw "[ANTIBOT] - Bot banned. Dont add";
}
}
if(!removed){
window.cachedUsernames.push({name: player.name,id: player.cid, time: 10, banned: false});
window.loggedPlayers[player.cid] = true;
}
}
}
function specialBotDetector(type,data,socket){
switch (type) {
case 'joined':
// if looks random
if(window.specialData.config.looksRandom){
if(looksRandom(data.name)){
const packet = createKickPacket(data.cid);
socket.send(JSON.stringify(packet));
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
window.cachedUsernames.forEach(o=>{
if(o.id == data.cid){
o.banned = true;
o.time = 10;
return;
}
});
throw `[ANTIBOT] - Bot ${data.name} banned; name too random.`;
}
}
if(!window.cachedData[data.cid] && !isNaN(data.cid) && Object.keys(data).length <= 5 && data.name.length < 16){ //if the id has not been cached yet or is an invalid id, and they are not a bot :p
window.cachedData[data.cid] = {
tries: 0,
loginTime: Date.now()
};
}else{
if(window.cachedData[data.cid]){ // now allowing reconnection
return;
}
const packet = createKickPacket(data.cid);
socket.send(JSON.stringify(packet));
console.warn(`[ANTIBOT] - Bot ${data.name} has been banished - invalid packet/name`);
window.cachedUsernames.forEach(o=>{
if(o.id == data.cid){
o.banned = true;
o.time = 10;
return;
}
});
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
delete window.cachedData[data.cid];
throw "[ANTIBOT] - Bot banned. Dont add";
}
if(!window.isUsingNamerator){
if(isFakeValid(data.name)){
if(Date.now() - window.specialData.lastFakeLogin < 5000){
if(window.cachedData[window.specialData.lastFakeUserID]){ // to get the first guy
const packet = createKickPacket(window.specialData.lastFakeUserID);
socket.send(JSON.stringify(packet));
clickName(window.specialData.lastFakeUserName);
delete window.cachedData[window.specialData.lastFakeUserID]; window.cachedUsernames.forEach(o=>{
if(o.id == window.specialData.lastFakeUserID){
o.banned = true;
o.time = 10;
return;
}
});
}
const packet = createKickPacket(data.cid);
socket.send(JSON.stringify(packet));
delete window.cachedData[data.cid];
window.cachedUsernames.forEach(o=>{
if(o.id == data.cid){
o.banned = true;
return;
}
});
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
window.specialData.lastFakeLogin = Date.now();
window.specialData.lastFakeUserID = data.cid;
window.specialData.lastFakeUserName = data.name;
throw `[ANTIBOT] - Banned bot ${data.name}; their name is suspicious, likely a bot.`;
}
window.specialData.lastFakeLogin = Date.now();
window.specialData.lastFakeUserID = data.cid;
window.specialData.lastFakeUserName = data.name;
}
}
break;
}
}
function teamBotDetector(team,cid,socket){
kick = false;
if(team.length == 0 || team.indexOf("") != -1 || team.indexOf("Player 1") != -1){
kick = true;
}
if(kick){
const packet = createKickPacket(cid);
socket.send(JSON.stringify(packet));
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
let name = "";
delete window.cachedData[cid];
window.cachedUsernames.forEach(o=>{
name = o.name;
if(o.id == cid){
o.banned = true;
o.time = 10;
return;
}
});
throw `[ANTIBOT] - Bot ${name} banned; invalid team members.`;
}
}
var timer = setInterval(function(){
for(let i in window.cachedUsernames){
if(window.cachedUsernames[i].time <= 0 && !window.cachedUsernames[i].banned && !window.confirmedPlayers.includes(window.cachedUsernames[i].name)){
window.confirmedPlayers.push(window.cachedUsernames[i].name);
continue;
}
if(window.cachedUsernames[i].time <= -20){
window.cachedUsernames.splice(i,1);
continue;
}
window.cachedUsernames[i].time--;
}
},1000);
const TFATimer = setInterval(()=>{
for(let i in window.cachedData){
window.cachedData[i].tries = 0;
}
},10000);
window.sendHandler = function(data){
data = JSON.parse(data)[0];
if(data.data){
if(!data.data.id){
return;
}
switch (data.data.id) {
case 2:
window.specialData.startTime = Date.now();
break;
}
}
}
window.globalMessageListener = function(e,t){
window.e = e;
if(!window.e.webSocket.oldSend){
window.e.webSocket.oldSend = window.e.webSocket.send;
window.e.webSocket.send = function(data){
window.sendHandler(data);
window.e.webSocket.oldSend(data);
}
}
/*console.log(e); from testing: e[.webSocket] is the websocket*/
var data = JSON.parse(t.data)[0];
/*console.log(data);*/
messageId = data.id ? data.id : messageId;
/*if the message is the first message, which contains important clientid data*/
if(data.id == 1){
clientId = data.clientId;
}
try{
pin = pin ? pin : Number(document.querySelector("[data-functional-selector=\"game-pin\"]").innerHTML);
if(Number(document.querySelector("[data-functional-selector=\"game-pin\"]").innerHTML) != pin){
pin = Number(document.querySelector("[data-functional-selector=\"game-pin\"]").innerHTML);
}
}catch(err){}
/*if the message is a player join message*/
if(data.data ? data.data.type == "joined" : false){
console.warn("[ANTIBOT] - determining evil...");
determineEvil(data.data,e.webSocket);
specialBotDetector(data.data.type,data.data,e.webSocket);
}else
/*if the message is a player leave message*/
if(data.data ? data.data.type == "left" : false){
}else
if(data.data ? data.data.id == 45 : false){
// if player answers
if(Date.now() - window.specialData.startTime < 500 && window.specialData.config.timeout){
throw "[ANTIBOT] - Answer was too quick!";
}
// if player just recently joined (within 1 second)
if(window.cachedData[data.data.cid] && Date.now() - window.cachedData[data.data.cid].loginTime < 1000){
const packet = createKickPacket(data.data.cid);
window.e.webSocket.send(JSON.stringify(packet));
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
delete window.cachedData[data.data.cid];
throw `[ANTIBOT] - Bot with id ${data.data.cid} banned. Answered too quickly after joining.`;
}
}else
if(data.data ? data.data.id == 50 : false){
window.cachedData[data.data.cid].tries++;
if(window.cachedData[data.data.cid].tries > 3){
const kicker = createKickPacket(data.data.cid);
e.webSocket.send(JSON.stringify(kicker));
const name = window.cachedUsernames.filter(o=>{return o.id == data.data.cid}).length ? window.cachedUsernames.filter(o=>{return o.id == data.data.cid})[0].name : "bot";
console.warn(`[ANTIBOT] - Bot ${name} banished. Seen spamming 2FA`);
window.cachedUsernames.forEach(o=>{
if(o.id == window.specialData.lastFakeUserID){
o.banned = true;
o.time = 10;
return;
}
});
delete window.cachedData[data.data.cid];
const c = document.getElementById("killcount");
if(c){
c.innerHTML = Number(c.innerHTML) + 1;
}
}
}else if (data.data && data.data.id == 18) {
teamBotDetector(JSON.parse(data.data.content),data.data.cid,e.webSocket);
}
};
};
let mainScript = new XMLHttpRequest();
mainScript.open("GET","https://play.kahoot.it/"+script2);
mainScript.send();
mainScript.onload = ()=>{
let sc = mainScript.response;
sc = sc.replace("o.namerator","(()=>{console.log(o.namerator);window.isUsingNamerator = o.namerator;return o.namerator})()");
sc = sc.replace("currentQuestionTimer:a.payload.time","currentQuestionTimer:a.payload.time + (()=>{return (window.specialData.config.additionalQuestionTime * 1000) || 0})()");
let changed = originalPage.split("</body>");
changed = `${changed[0]}<script>${patchedScript}</script><script>${sc}</script><script>try{(${window.localStorage.kahootThemeScript})();}catch(err){}try{(${window.localStorage.extraCheck})();}catch(err){}window.setupAntibot = ${code.toString()};window.fireLoaded = true;window.setupAntibot();</script></body>${changed[1]}`;
console.log("[ANTIBOT] - loaded");
document.open();
document.write(changed);
document.close();
};
};
};