Bypass CORS in private
// ==UserScript==
// @name 不智慧教室
// @version 1.1
// @description Bypass CORS in private
// @author singledog
// @match https://duaa.singledog233.top/*
// @grant GM_xmlhttpRequest
// @connect iclass.buaa.edu.cn
// @run-at document-start
// @license MIT
// @namespace https://greasyfork.org/users/1226768
// ==/UserScript==
(function () {
'use strict';
const DEBUG = false;
const dlog = (...args) => { if (DEBUG) console.log('[iClass-Userscript]', ...args); };
dlog('Userscript loaded at', location.href);
function httpRequest(method, url, { headers = {}, data = null, timeout = 8000 } = {}) {
dlog('httpRequest:start', { method, url, headers, dataPreview: (typeof data === 'string' ? data.slice(0, 128) : data), timeout });
return new Promise((resolve, reject) => {
const t0 = performance.now();
GM_xmlhttpRequest({
method,
url,
headers,
data,
timeout,
onload: (res) => {
const dt = (performance.now() - t0).toFixed(1);
dlog('httpRequest:onload', { url, status: res.status, timeMs: dt, length: (res.responseText || '').length });
try {
const json = JSON.parse(res.responseText || '{}');
dlog('httpRequest:json', json);
resolve(json);
} catch (e) {
dlog('httpRequest:parse-error', e);
resolve({ STATUS: '1', message: '响应非JSON', raw: res.responseText });
}
},
onerror: (e) => {
dlog('httpRequest:onerror', e);
reject(new Error('网络错误'));
},
ontimeout: () => {
dlog('httpRequest:timeout', { url, timeout });
reject(new Error('请求超时'));
},
});
});
}
function toQuery(params) {
const usp = new URLSearchParams();
Object.entries(params).forEach(([k, v]) => usp.append(k, v));
return usp.toString();
}
// 登录
async function login(studentId) {
dlog('login:start', { studentId });
const url = `https://iclass.buaa.edu.cn:8346/app/user/login.action?` + toQuery({
password: '',
phone: studentId,
userLevel: '1',
verificationType: '2',
verificationUrl: '',
});
const res = await httpRequest('GET', url);
dlog('login:done', res);
return res;
}
// 课表查询
async function getSchedule(userId, sessionId, dateStr) {
dlog('getSchedule:start', { userId, sessionIdPreview: (sessionId || '').slice(0, 6) + '...', dateStr });
const url = `https://iclass.buaa.edu.cn:8346/app/course/get_stu_course_sched.action?` + toQuery({
dateStr,
id: userId,
});
const res = await httpRequest('GET', url, { headers: { sessionId } });
dlog('getSchedule:done', res);
return res;
}
// 签到
async function sign(userId, courseSchedId) {
dlog('sign:start', { userId, courseSchedId });
const tsMs = Date.now();
const url = `http://iclass.buaa.edu.cn:8081/app/course/stu_scan_sign.action?courseSchedId=${encodeURIComponent(courseSchedId)}×tamp=${tsMs}`;
const body = toQuery({ id: userId }); // 表单方式
const res = await httpRequest('POST', url, {
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
},
data: body,
});
dlog('sign:done', res);
return res;
}
// 使用 postMessage 监听来自页面的请求，并回传处理结果
window.addEventListener('message', async (ev) => {
try {
const data = ev.data || {};
if (!data.__ICLASS_MSG__) return;
const { type, id, payload } = data;
dlog('message:received', { type, id, payload });
if (type === 'iclass:intranet:query') {
const { studentId, dateStr } = payload || {};
try {
const loginRes = await login(studentId);
if (loginRes.STATUS !== '0') {
dlog('query:login-failed', loginRes);
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:query:result', id, payload: { login: loginRes, schedule: { STATUS: '1', message: '登录失败' } } }, '*');
return;
}
const userId = loginRes.result?.id;
const sessionId = loginRes.result?.sessionId;
const scheduleRes = await getSchedule(userId, sessionId, dateStr);
dlog('query:success');
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:query:result', id, payload: { login: loginRes, schedule: scheduleRes } }, '*');
} catch (e) {
dlog('query:error', e);
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:query:result', id, payload: { login: { STATUS: '1', message: e.message }, schedule: { STATUS: '1', message: e.message } } }, '*');
}
}
if (type === 'iclass:intranet:signin') {
const { studentId, courseSchedId } = payload || {};
try {
const loginRes = await login(studentId);
if (loginRes.STATUS !== '0') {
dlog('signin:login-failed', loginRes);
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:signin:result', id, payload: { STATUS: '1', message: '登录失败' } }, '*');
return;
}
const userId = loginRes.result?.id;
const signRes = await sign(userId, courseSchedId);
dlog('signin:success');
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:signin:result', id, payload: signRes }, '*');
} catch (e) {
dlog('signin:error', e);
window.postMessage({ __ICLASS_MSG__: true, type: 'iclass:intranet:signin:result', id, payload: { STATUS: '1', message: e.message } }, '*');
}
}
} catch (err) {
dlog('message:handler-error', err);
}
});
})();