CLASSAPI/login

scrapbox.ioからclass.admin.tus.ac.jpに接続し、log in処理を行うscript

Cookieなしでlogin画面まで突破する

2021-04-10 14:49:51 ゲストユーザーでログインする関数を作った

2021-03-27 06:28:20 お気に入りリンクの取得処理を削った

DOMが変わって、簡単に取得できなくなった

そもそも使っていない

dependencies

code:auth.js

import {postToCLASS} from '../CLASSでページ遷移するscript/scrapbox.js';

export async function login({userId, password}) {

let {comSunFacesVIEW} = await getAuthData();

const html = await postToCLASS('/up/faces/login/Com00505A.jsp', {

'form1:htmlUserId': userId,

'form1:htmlPassword': password,

'form1:login.x': 0,

'form1.login.y': 0,

'form1': 'form1',

'com.sun.faces.VIEW': comSunFacesVIEW,

});

const dom = new DOMParser().parseFromString(html, 'text/html');

comSunFacesVIEW = dom.getElementById('com.sun.faces.VIEW').value;

// お知らせの概要を取得する

const announceSummary = [];

{

const baseId = 'form1:Poa00201A:htmlParentTable';

const announceTable = dom.getElementById(baseId);

for (const index of range(announceTable.firstElementChild.children.length)) {

announceSummary.push({

.textContent.trim(),

.textContent.replace(/全(\d+)件/, '$1')),

hasHiddenAnnounces: dom

.nextElementSibling !== null,

id: index,

});

}

}

return {html, comSunFacesVIEW, announceSummary};

}

code:auth.d.ts

type Announce = {

unread: boolean;

important: boolean;

title: string;

updated: Date;

page: {

title: string;

sender: string;

lines: string[];

files: string[];

};

};

type Summary = {

title: string;

count: number;

hasHiddenAnnounces: boolean;

id: number;

};

export function login(props: {userId: string; password: string;}): Promise<{

html: string;

comSunFacesVIEW: string;

announceSummary: Summary[];

}>

ゲストユーザーでログインする

code:auth.js

export async function loginAsGuest() {

let {comSunFacesVIEW} = await getAuthData();

const html = await postToCLASS('/up/faces/login/Com00505A.jsp', {

'form1:guest.x': 0,

'form1.guest.y': 0,

'form1': 'form1',

'com.sun.faces.VIEW': comSunFacesVIEW,

});

const dom = new DOMParser().parseFromString(html, 'text/html');

comSunFacesVIEW = dom.getElementById('com.sun.faces.VIEW').value;

return {html, comSunFacesVIEW};

}

認証用cookieと、loginに必要なform dataを取得する関数

code:auth.js

async function getAuthData() {

let comSunFacesVIEW = undefined;

let jSessionId = undefined;

while (!comSunFacesVIEW) {

const response = await fetchCLASS('/up/faces/login/Com00505A.jsp');

jSessionId = response

.responseHeaders.split('\r\n')

.find(text => text.startsWith('set-cookie:'))

?.slice?.('set-cookie: '.length)

const dom = new DOMParser().parseFromString(response.responseText, 'text/html');

comSunFacesVIEW = dom.getElementById('com.sun.faces.VIEW').value;

}

return {jSessionId, comSunFacesVIEW};

}

test code

2021-03-21 02:13:28 server メンテナンス中だ……テストできないや。

2021-03-21 07:35:45 テストした。何度もログインし直せるみたい。

code:js

(async () => {

const {login} = await import('/api/code/takker/CLASSAPI%2Flogin/auth.js');

// 試しに10回 cookie無しでlog inしてみる

for (let i = 0; i < 10; i++) {

console.log((await login({userId, password})).announceSummary);

}

})();

code:js

import('/api/code/takker/CLASSAPI%2Flogin/test1.js')

.then(({execute}) => execute(/*...*/));

code:test1.js

import {login} from './auth.js';

export async function execute(userId, password) {

console.log((await login({userId, password})).announceSummary);

}

ゲストモードでログインしてみる

code:js

(async () => {

const {loginAsGuest} = await import('/api/code/takker/CLASSAPI%2Flogin/auth.js');

// 試しに10回 cookie無しでlog inしてみる

for (let i = 0; i < 10; i++) {

console.log(await loginAsGuest());

}

})();