// ==UserScript==
// @name 易班考试无token版（无限制）
// @namespace http://tampermonkey.net/
// @license Common
// @version 1.0
// @description 理论上所有选择题考试都可以用
// @author YOOC
// @match *.yooc.me/*
// @require https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.1.1/crypto-js.min.js
// @icon https://www.google.com/s2/favicons?sz=64&domain=yooc.me
// @grant none
// @run-at document-start
// ==/UserScript==
(function () {
const meta = document.createElement('meta');
meta.httpEquiv = 'Content-Security-Policy';
meta.content = 'upgrade-insecure-requests';
document.head.appendChild(meta);
let has_init = false;
let tk;
let id;
let button_init = false;
let user_data;
//=========替换特殊字符防止匹配不上=======================
window.my_replace = function my_replace(text) {
text = text.replace(new RegExp(/ | |\\t|\\r|\\n|<br>|<br\/>| |\s/g), "");
return text;
}
const localStorage = window.localStorage;
function set_value(key, value) {
localStorage.setItem(key, value);
}
function get_value(key) {
return localStorage.getItem(key);
}
localStorage.removeItem('local_paper');
localStorage.removeItem('examAnswersAtom');
localStorage.removeItem('examTakePosAtom');
// =========试卷的一些信息存储，包括易班id，cookie，考试名称===============
user_data = JSON.parse(get_value('data') != null ? get_value('data') : '{}');
function update_data(key, value) {
user_data[key] = value;
set_value('data', JSON.stringify(user_data));
}
// ==========获取token=============================
let token = get_value("token");
for (let i = 0; i < localStorage.length; i++) {
let key = localStorage.key(i);
if (key.startsWith('exam-paper')) {
let value = localStorage[key];
localStorage.removeItem(key);
set_value('back-' + key, value);
}
}
/**
* @fileoverview 提供文本（如JSON），使用JavaScript创建文件并下载文件
* @author AcWrong
* @param {string} textTowrite
* @param {string} fileNameToSaveAs
* @param {string} fileType
*/
function saveTextAsFile(textTowrite, fileNameToSaveAs, fileType) {
//提供文本和文件类型用于创建一个Blob对象
let textFileAsBlob = new Blob([textTowrite], {type: fileType});
//创建一个 a 元素
let downloadLink = document.createElement('a');
//指定下载过程中显示的文件名
downloadLink.download = fileNameToSaveAs;
downloadLink.innerHTML = 'Download File';
downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
downloadLink.style.display = 'none';
document.body.appendChild(downloadLink);
//模式鼠标左键单击事件
downloadLink.click();
}
//试卷处理，获取答案
function get_exam_data(res_data){
let paper = res_data['value']['paper'];
let id = res_data['id'];
let result_data = {};
let data = {};
for (const section of paper){
for (const subject of section['subjects']){
let title = subject['title'][0];
let answer_list = eval(get_answer_list(subject['answer'],id));
let answer_option = [];
for (const answer of answer_list){
answer_option.push(subject['option'][parseInt(answer)][0]);
}
result_data[title] = answer_option;
}
//console.log(result_data);
}
return(data['result']=result_data);
}
function get_answer_list(answer,id){
const key = CryptoJS.enc.Utf8.parse(CryptoJS.MD5('yooc@admin' + id).toString().substring(8,24));
//console.log(answer);
//console.log(key);
const iv = CryptoJS.enc.Utf8.parse('42e07d2f7199c35d');
const answer_list = decryptAES_CBC(answer, key, iv);
//console.log(answer_list);
return answer_list;
}
function decryptAES_CBC(encrypteData, key, iv) {
const decrypted = CryptoJS.AES.decrypt(encrypteData, key, {
iv: iv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return decrypted.toString(CryptoJS.enc.Utf8);
}
//将答案保存到本地
function save_paper(obj) {
const local_paper_str = get_value('local_paper');
let local_paper = JSON.parse(local_paper_str != null ? local_paper_str : '{}');
let now_subject = local_paper[user_data['examId']];
if (now_subject === undefined) {
local_paper[user_data['examId']] = {
exam_name: user_data['exam_name'],
subjects: obj,
}
} else {
let old = local_paper[user_data['examId']]['subjects'];
let new_ = obj;
local_paper[user_data['examId']]['subjects'] = Object.assign(old, new_);
}
set_value('local_paper', JSON.stringify(local_paper));
window.paper = local_paper;
}
function download_to_local() {
const local_paper_str = get_value('local_paper');
if (local_paper_str === null) {
alert('本地没有保存有你的做题记录');
return;
}
let local_paper = JSON.parse(local_paper_str);
const exam_id_list = Object.keys(local_paper);
for (const exam_id of exam_id_list) {
let s = '';
let exam_name = local_paper[exam_id]['exam_name'];
const title_keys = Object.keys(local_paper[exam_id]['subjects']);
for (const titleKey of title_keys) {
s += "题目：" + titleKey + "\n答案：" + local_paper[exam_id]['subjects'][titleKey];
s += '\n\n';
}
saveTextAsFile(s, exam_name +'_'+id+'.txt', 'text/plain')
}
}
// ============判断当前页面链接，如果是电脑版则跳转到手机版=====================
let u = window.location.href;
if (u === ('https://www.yooc.me/')) {
window.location.replace('https://www.yooc.me/mobile/yooc')
}
// =================劫持fetch方法========================================
// =================监听并获取一些数据，以便服务器实现解密等功能================
// =================修改返回值以达到查卷，禁止乱序等功能======================
const originOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function (_, url) {
const xhr = this;
const getter = Object.getOwnPropertyDescriptor(
XMLHttpRequest.prototype,
"response"
).get;
Object.defineProperty(xhr, "responseText", {
get: () => {
let result = getter.call(xhr);
try {
if (url.indexOf('api/group/info') !== -1) {
const json = JSON.parse(result);
let invite_code = json.data.code;
let group_name = json.data.name;
update_data('invite_code', invite_code);
update_data('group_name', group_name);
// let invite_code = result.match('(?<=code...)\\w+')[0];
let title = document.getElementsByClassName('title')[0];
title.innerText = title.innerText + '邀请码' + invite_code;
}
if (url.indexOf('api/group/module') !== -1) {
let js = JSON.parse(result);
for (let i = 0; i < js['data']['modules'].length; i++) {
if (js['data']['modules'][i]['module'].indexOf('exam') !== -1) {
js['data']['modules'][i]['url'] += '?user_data=' + encodeURI(JSON.stringify(user_data));
}
}
return JSON.stringify(js);
}
return result;
} catch (e) {
return result;
}
},
});
originOpen.apply(this, arguments);
};
window.au_fetch = window.fetch;
window.fetch = function (url) {
if (url.indexOf('api') === -1) {
return au_fetch(url);
}
if (url.indexOf("yibanId") !== -1) {
id = url.match('(?<=yibanId\\=)\\d+')[0];
update_data('yibanId', id);
}
if (url.indexOf("paper") !== false) {
add_button();
}
return window.au_fetch.apply(window, arguments).then((response) => {
const reader = response.body.getReader();
const stream = new ReadableStream({
start(controller) {
function push() {
// "done"是一个布尔型，"value"是一个Unit8Array
reader.read().then((e) => {
let {done, value} = e;
// 判断是否还有可读的数据？
let text = new TextDecoder("utf-8").decode(value);
if (done) {
// 告诉浏览器已经结束数据发送
controller.close();
return;
}
if (url.indexOf('api/exam/detail/get?userId') !== -1) {
let res_json = JSON.parse(text);
update_data('examId', res_json['data']['examId']);
update_data('examuserId', res_json['data']['examuserId']);
update_data('exam_name', res_json['data']['name']);
}
// text = text.replace(new RegExp(/status":\d/g), 'status":2')
text = text.replace('"isHidePaper":1', '"isHidePaper":0');
text = text.replace('"isHideAnswer":1', '"isHideAnswer":0');
text = text.replace('"isShowRank":0', '"isShowRank":1');
text = text.replace('"isChoiceShuffle":1', '"isChoiceShuffle":0');
text = text.replace('"isSubjectShuffle":1', '"isSubjectShuffle":0');
// console.log(JSON.parse(text));
controller.enqueue(new TextEncoder().encode(text));
push();
});
}
push();
}
});
return new Response(stream, {headers: {"Content-Type": "text/html"}});
});
};
function add_button() {
if (!document.getElementsByClassName("jsx-3527395752 __ pa-xs flex items-center fs-l").length > 0) {
setTimeout(function () {
add_button();
}, 1000);
return;
}
if (button_init) return;
button_init = true;
let bottom = document.getElementsByClassName("jsx-3527395752 __ pa-xs flex items-center fs-l")[0];
let last = bottom.getElementsByClassName("jsx-3527395752 p")[0];
let next = bottom.getElementsByClassName("jsx-3527395752 n")[0];
let title_right = document.getElementsByClassName("jsx-372353390 right")[0];
let bt = document.createElement("button");
bt.innerText = "冲！";
let main = document.getElementsByTagName("main")[0];
let h3 = main.getElementsByTagName("h3")[0];
let has_done = false;
bt.onclick = function () {
if (!window.location.href.endsWith('take')) {
alert('貌似这里不是考试界面');
return;
}
if (has_done) {
const re = confirm('你已经点过了，如果没反应请稍等片刻（一般在十秒钟之内）');
if (!re) {
return;
}
}
has_done = true;
let res;
// ===============在网页存储找到试卷并发送到服务器解密================
for (let i = 0; i < localStorage.length; i++) {
if (localStorage.key(i).startsWith("exam-paper")) {
let res_str = localStorage.getItem(localStorage.key(i));
res = JSON.parse(my_replace(res_str).replace(new RegExp(/<.*?>/g), "").replace(new RegExp(/ | |\s/g), ""));
break;
}
}
if (res === undefined) {
alert("找不到试卷，请刷新重试，或者检查是否开启缓存");
has_done = false;
return;
}
res['id'] = id;
let result = get_exam_data(res);
save_paper(result);
tk = result;
window.tk = tk;
// console.log(result);
let span = bottom.getElementsByTagName("span");
let count_text = span[0].innerText;
let count_list = count_text.split("/");//目前题目位置1/50，分割之后为["1","50"]
for (let i = 0; i < count_list[0]; i++) {
//点回第一题
last.click();
}
for (let i = 0; i < parseInt(count_list[1]); i++) {
let title_obj = h3.getElementsByTagName("div")[0];
let title = my_replace(title_obj.innerHTML);
let body = h3.parentElement.children[1].children[0];
// =========如果body是空则不是选择题=====================
if (body === undefined) {
title = title.replace(new RegExp(/<input.*?>/g), "{input}").replace(new RegExp(/<.*?>/g), "").replace(new RegExp(/ /g), "").replace(new RegExp(/ | |\s/g), "");
let inputs = title_obj.getElementsByTagName('input');
const ans = tk[title];
for (let j = 0; j < inputs.length; j++) {
let answer = ans[j];
let ev = new Event('input', {bubbles: true});
ev.simulated = true;
inputs[j].value = (Array.isArray(answer) ? answer[0] : answer);
inputs[j].dispatchEvent(ev);
}
next.click();
continue;
}
//=====如果是填空题在上面的if已经continue了，所以下面的是选择题的代码====
console.log(title)
const ans = tk[title];
let ans_l = body.getElementsByTagName("li");
//不是未初始化，说明返回的数据中有这个题目
if (ans !== undefined) {
//单选题，答案是哪个就点哪个就可以了
if (body.className.indexOf('jsx-2160564469') !== -1) {
for (let j = 0; j < ans_l.length; j++) {
let an_str = my_replace(ans_l[j].children[1].innerHTML.slice(2));
if (ans.indexOf(an_str) !== -1) {
ans_l[j].click();
}
}
} else if (body.className.indexOf('jsx-2550022912') !== -1) {//多选题需要判断有没有选对，没选对的取消勾选，对的没选的就选上
for (let j = 0; j < ans_l.length; j++) {
let an_str = my_replace(ans_l[j].children[1].innerHTML.slice(2));
if (ans.indexOf(an_str) !== -1 && ans_l[j].children[0].children[0].childElementCount === 2) {
ans_l[j].click();
} else if (ans.indexOf(an_str) === -1 && ans_l[j].children[0].children[0].childElementCount === 1) {
ans_l[j].click();
}
}
}
}
next.click();
}
alert('答题成功请检查后等待一段时间再交卷以免因为时长问题被发现');
};
let bt2 = document.createElement('button');
bt2.innerText = '导出';
bt2.onclick = download_to_local;
title_right.appendChild(bt);
title_right.appendChild(bt2);
}
window.onload = function () {
if (u.indexOf('login') !== -1) {
eval('$("#yooc_submit").on("click" ,function (event) {\n' +
' auto_login();' +
' })')
}
};
})();
