Remove all bots from a kahoot game.
目前為
// ==UserScript==
// @name Kahoot AntiBot
// @namespace http://tampermonkey.net/
// @version 2.5.7
// @description Remove all bots from a kahoot game.
// @author theusaf
// @match *://play.kahoot.it/*
// @grant none
// @run-at document-start
// ==/UserScript==
if(window.fireLoaded){
throw "[ANTIBOT] - page is loaded";
}
//window.stop(); //stop loading and save data from the page.
if(window.localStorage.extraCheck){
console.log("[ANTIBOT] - Detected PIN Checker");
}
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(t,n);");
const code = /*window.setupAntibot = */ ()=>{
const percent = 0.6;
var waterMark = document.createElement("p");
waterMark.innerText = "v2.5.7 @theusaf";
waterMark.style = "position: fixed; bottom: 100px; right:100px; font-size: 1em";
document.body.append(waterMark);
window.isUsingNamerator = false;
window.cachedUsernames = [];
window.confirmedPlayers = [];
window.cachedData = {};
window.loggedPlayers = {};
var messageId = 0;
var clientId = null;
var pin = null;
function similarity(s1, s2) {
if(!s2){
return 0;
}
if(s1){
if(!isNaN(s2) && !isNaN(s1) && s1.length == s2.length){
return 1;
}
}
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;
}
s1 = s1.toLowerCase();
s2 = s2.toLowerCase();
var longer = s1;
var shorter = s2;
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 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){
// Disabled in V 2.5.5
/*if(window.loggedPlayers[player.cid] === true){
let packet = createKickPacket(player.cid);
socket.send(JSON.stringify(packet));
window.loggedPlayers[player.cid] = false;
throw "[ANTIBOT] - Evil intentions discovered";
}*/
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`);
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`);
throw "[ANTIBOT] - Bot banned. Dont add";
}
if(similarity(window.cachedUsernames[i].name,player.name) >= 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;
window.cachedUsernames[i].time = 10;
socket.send(JSON.stringify(packet2));
}
console.warn(`[ANTIBOT] - Bots ${player.name} and ${window.cachedUsernames[i].name} have been banished`);
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(!window.cachedData[data.cid] && !isNaN(data.cid) && Object.keys(data).length <= 5){ //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
};
}else{
/*if(window.loggedPlayers[data.cid] === false){
break;
}*/
var packet = createKickPacket(data.cid);
socket.send(JSON.stringify(packet));
console.warn(`[ANTIBOT] - Bot ${data.name} has been banished, clearly a bot from kahootsmash or something`);
throw "[ANTIBOT] - Bot banned. Dont add";
}
break;
}
}
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.globalMessageListener = function(e,t){
window.e = e;
/*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 contains the pin*/
/*if(data.id == 3){
pin = data.data.gameid;
}*/
/*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);
}
/*if the message is a player leave message*/
if(data.data ? data.data.type == "left" : false){
//Disabled in V2.5.5
/*if(window.loggedPlayers[data.data.cid] === false){ //if the antibot detected the evildoer
//As of V 2.5.2, this has been abandoned since it doesn't actually work :p
window.loggedPlayers[data.data.cid] = true;
throw "[ANTIBOT] - Preventing removal of real player.";
}
window.loggedPlayers[data.data.cid] = false;*/
}
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 ${name} banished. Seen spamming 2FA`);
}
}
};
};
let mainScript = new XMLHttpRequest();
mainScript.open("GET","https://play.kahoot.it/"+script2);
mainScript.send();
mainScript.onload = ()=>{
let sc = mainScript.response;
sc = sc.replace("r.namerator","(()=>{console.log(r.namerator);window.isUsingNamerator = r.namerator;return r.namerator})()");
let changed = originalPage.split("</body>");
changed = `${changed[0]}<script>${patchedScript}</script><script>${sc}</script><script>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();
//document.documentElement.innerHTML = changed;
};
};
};