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Automatic new-account creation.

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EthanHarv 2021-07-29 23:30:41 -05:00
parent d11b378670
commit 607338b3f1
1 changed files with 59 additions and 137 deletions
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196
slader-limit-bypass/js/quizlet_bypass.js
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@ -1,152 +1,74 @@
// TODO: Sidestep race condition in a less patchwork manner
setTimeout(function(){ renderBypass(); /* TODO: Check if it actually went through */ }, 1250);
// Remove 'x' free solutions badge.
if (document.querySelector('.b1if8dab')) { document.querySelector('.b1if8dab').style.display = "none"; }
checkIfNewAccountNeeded();
function renderBypass()
function checkIfNewAccountNeeded()
{
// Setup page elements
//Get Katex CSS
var katex_css = document.createElement('link');
katex_css.setAttribute('rel','stylesheet');
katex_css.setAttribute('href','https://cdn.jsdelivr.net/npm/katex@0.13.11/dist/katex.min.css ');
document.head.appendChild(katex_css);
// Three cases: Almost out of solutions, not logged in at all, or out of solutions.
// Get the webpage data, devoid of any headers or cookies. Acts as if the user is not logged in at all.
doFetch(window.location).then(data => { processData(data); })
}
function processData(data){
// Clear the "hidden explanation" out and replace it with a blank explanation area.
// The innermost item is ".s1i7awl8"
document.querySelector('main .mwhvwas').innerHTML = '<div class="c18oith1 sladerBypass"><div class="s1oluvjw"><h4 class="h1cwp1lk">Explanation</h4><div class="as7m9cv snqbbas"><div data-testid="ExplanationsSolution" class="e1sw891e"><div class="s1i7awl8"></div></div></div></div></div>';
var expArea = document.querySelector('.sladerBypass .s1i7awl8')
// Render new stuff
// Is this an abomination? Yes.
// Does it work? Also yes.
//
// ...
//
// I don't want to talk about it.
//
var json = data.match(/(?<=window.Quizlet\["(questionDetailsPageData|textbookExercisePageData)"] = ).+?(?=; QLoad\("Quizlet.(questionDetailsPageData|textbookExercisePageData)")/gm);
if (!json)
// Almost out of solutions
if (document.querySelector('.b1m16m5o') && document.querySelector('.b1m16m5o').textContent == "This is your last free explanation")
{
// Display ratelimit message
expArea.innerHTML = `<div style="color: red;"><h1>You have been ratelimited by Quizlet</h1><br>Try clearing your cookies for Quizlet and reloading this page, this usually fixes it.<br>— Slader Bypass.</div>`;
signUpNewAccount(false);
}
// Not logged in
else if (document.querySelector('.t1qexa4p') && document.querySelector('.t1qexa4p').textContent == "Create a free account to see explanations")
{
signUpNewAccount(true);
}
// Out of solutions
else if (document.querySelector('.sukvi6d') && document.querySelector('.sukvi6d').textContent == "YOU'VE REACHED YOUR FREE LIMIT")
{
signUpNewAccount(true);
}
}
// Parse JSON data
var qDetails = JSON.parse(json[0]);
var solutions = (qDetails.question || qDetails.exercise).solutions;
// Display JSON data as answer
solutionNum = 0;
solutions.forEach(solution => {
solutionNum++;
expArea.appendChild(document.createElement('hr'));
var h1 = document.createElement('h1');
h1.textContent = 'Solution ' + solutionNum + ":";
expArea.appendChild(h1);
const numSteps = solution.steps.length;
solution.steps.forEach(step => {
const stepNum = step.stepNumber;
// Create card element
var div = document.createElement('div');
// Insert boilerplate card data
div.innerHTML = '<div class="r8gl7vf" data-testid="ExplanationsSolutionStep" style="padding-top: 0.8rem;"><div class="AssemblyCard AssemblyMediumCard"><div class="ExplanationsSolutionCard c5ngj6s"><div class="h1ejaztj"><h4 class="s39tzu2"></h4><span class="sb9ch1t"></span></div><div class="s1wwu7g8"><div class="s1x7f4sz"><div class=""><div class="s1xkd811"><div class="mi4ni5d sladerBypassKatex" style="white-space: pre-wrap;"></div></div></div></div></div></div></div></div>';
// Step X: .s39tzu2
div.querySelector('.s39tzu2').textContent = (numSteps === stepNum) ? "Result" : "Step " + stepNum;
// x of x: .sb9ch1t
div.querySelector('.sb9ch1t').textContent = stepNum + ' of ' + numSteps;
// I'm not 100% on the structure of these, but I'll take a stab at it.
// It seems that only one column is ever used. I'll iterate anyways, because I can't trust that.
step.columns.forEach(column => {
var columnDiv = document.createElement('div');
// Insert inner text
if (column.text)
{
var textDiv = document.createElement('div');
textDiv.classList.add('sladerBypassKatexTextArea')
textDiv.textContent = column.text.replaceAll('\n\n\n', '\n\n'); // The replace call is a bit funky but it works.
columnDiv.appendChild(textDiv);
}
// Insert image, if applicable
if (column.images.additional)
{
var image = document.createElement('img');
image.setAttribute('src', column.images.additional.regular.srcUrl);
columnDiv.appendChild(image);
}
function signUpNewAccount(doesReload)
{
// We're just gonna assume this is a large enough characterspace for it to never matter.
var email = "sq_bypass_" + randomString(10, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
// Append server-rendered image src url. Used in errorhandling. (See: handleKatexError())
if (column.images.latex && column.images.latex.large)
{
div.querySelector('.sladerBypassKatex').setAttribute('katexsrc', column.images.latex.large.srcUrl);
}
// Same thing ^
var username = "sq_bypass_" + randomString(10, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
div.querySelector('.sladerBypassKatex').appendChild(columnDiv);
});
// Append card to explanation area.
expArea.appendChild(div);
});
});
// Render Katex for each card
expArea.querySelectorAll('.sladerBypassKatex').forEach(textArea => {
try {
renderMathInElement(textArea, {
delimiters: [
{left: "$$", right: "$$", display: true},
{left: "$", right: "$", display: false},
{left: "\\(", right: "\\)", display: false},
{left: "\\begin{equation}", right: "\\end{equation}", display: true},
{left: "\\begin{align}", right: "\\end{align}", display: true},
{left: "\\begin{alignat}", right: "\\end{alignat}", display: true},
{left: "\\begin{gather}", right: "\\end{gather}", display: true},
{left: "\\begin{CD}", right: "\\end{CD}", display: true},
{left: "\\[", right: "\\]", display: true}
],
throwOnError : true,
errorCallback : function(a, b){ handleKatexError(a, b, textArea); }
});
} catch (error) {
console.error('Katex experienced an error. Attempting to load image replacement.');
var request = fetch("https://quizlet.com/webapi/3.2/direct-signup", {
"headers": {
"accept": "application/json",
"accept-language": "en-US,en;q=0.9",
"content-type": "application/json",
"cs-token": getToken(),
"sec-ch-ua": "\" Not;A Brand\";v=\"99\", \"Google Chrome\";v=\"91\", \"Chromium\";v=\"91\"",
"sec-ch-ua-mobile": "?0",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"x-requested-with": "XMLHttpRequest"
},
"referrer": "https://quizlet.com/goodbye",
"referrerPolicy": "origin-when-cross-origin",
"body": "{\"TOS\":false,\"birth_day\":\"5\",\"birth_month\":\"5\",\"birth_year\":\"2000\",\"email\":\"" + email + "@example.com\",\"is_free_teacher\":\"2\",\"is_parent\":false,\"password1\":\"SladerBypassPassword\",\"redir\":\"https://quizlet.com/goodbye\",\"signupOrigin\":\"global-header-link\",\"screenName\":\"Logout/logoutMobileSplash\",\"username\":\"" + username + "\",\"marketing_opt_out\":false}",
"method": "POST",
"mode": "cors",
"credentials": "include"
}).then(function()
{
if (doesReload)
{
location.reload();
}
});
return true;
};
function handleKatexError(a, b, textArea)
{
// Display Katex error
console.error(a);
console.error(b);
function randomString(length, chars) {
var result = '';
for (var i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)];
return result;
};
// Remove broken Katex
textArea.querySelector('.sladerBypassKatexTextArea').innerHTML = '';
// Fallback to server-rendered katex (I'm assuming they have better error detection there.)
var image = document.createElement('img');
image.setAttribute('src', textArea.getAttribute('katexsrc'));
textArea.appendChild(image);
}
async function doFetch(url)
{
const response = await fetch(url, {
method: 'GET', // *GET, POST, PUT, DELETE, etc.
mode: 'cors', // no-cors, *cors, same-origin
cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
credentials: 'omit', // include, *same-origin, omit
headers: {
},
redirect: 'follow', // manual, *follow, error
referrerPolicy: 'no-referrer', // no-referrer, *no-referrer-when-downgrade, origin, origin-when-cross-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url
body: null // body data type must match "Content-Type" header
});
return response.text();
}
function getToken(){
token = document.cookie.match("(?:^|;)\\s*" + "qtkn".replace(/[\-\[\]{}()*+?.,\\^$|#\s]/g, "$&") + "=([^;]*)");
return decodeURIComponent(token[1]);
};