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Auto refill quizzes in canvas
// ==UserScript==
// @name Auto Refill Canvas Quizzes
// @namespace http://tampermonkey.net/
// @version v1.0.0
// @description Auto refill quizzes in canvas
// @author AdoreJc
// @match https://*.instructure.com/courses/*/quizzes/*/take
// @icon https://www.google.com/s2/favicons?sz=64&domain=instructure.com
// @license MIT
// @grant none
// ==/UserScript==
(function() {
'use strict';
async function fetchHighestScoreAttemptLink() {
try {
console.log("Getting attempts from " + window.location.pathname.replace('/take','/submission_versions'));
let response = await fetch(window.location.pathname.replace('/take','/submission_versions'), {
method: 'GET',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
});
if (!response.ok) {
throw new Error('Failed to fetch quiz attempt data');
}
let text = await response.text();
//console.log(text);
let parser = new DOMParser();
let doc = parser.parseFromString(text, 'text/html');
let attempts = doc.querySelectorAll('table.ic-Table tbody tr');
if(!attempts){
throw new Error('No attempts found');
}
console.log("Attempts: " + attempts);
let maxScore = -1;
let highestAttemptLink = '';
attempts.forEach((attempt) => {
let scoreText = attempt.querySelector('td:nth-child(3)').innerText.trim();
let score = parseInt(scoreText.split(' ')[0]);
console.log("Score: " + score);
if (score > maxScore) {
maxScore = score;
let link = attempt.querySelector('a').getAttribute('href');
highestAttemptLink = link;
}
});
if (highestAttemptLink) {
console.log(`Found highest score attempt link: ${highestAttemptLink}`);
return highestAttemptLink;
} else {
throw new Error('No attempt link found');
}
} catch (error) {
console.error('Error fetching highest score attempt link:', error);
return null;
}
}
async function fetchPreviousQuizAnswers(attemptLink) {
try {
let response = await fetch(attemptLink, {
method: 'Get',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
});
if (!response.ok) {
throw new Error('Failed to fetch previous quiz data');
}
let text = await response.text();
let parser = new DOMParser();
let doc = parser.parseFromString(text, 'text/html');
let answers = {};
let questions = doc.querySelectorAll('.question_holder');
questions.forEach((question) => {
let questionId = question.querySelector('.question').id;
let selectedAnswer = question.querySelector('input[type="radio"][checked]');
if (selectedAnswer) {
let answerId = selectedAnswer.id.replace('-', '_');
let isIncorrect = question.querySelector('.answer_arrow.incorrect');
answers[questionId] = { answerId, isIncorrect};
}
});
console.log('Fetched answers:', answers);
return answers;
} catch (error) {
console.error('Error fetching quiz answers:', error);
return {};
}
}
async function fillQuizWithAnswers() {
let attemptLink = await fetchHighestScoreAttemptLink();
if (!attemptLink) return;
let answers = await fetchPreviousQuizAnswers(attemptLink);
Object.keys(answers).forEach((questionId) => {
let correctAnswerId = answers[questionId].answerId;
console.log(`Processing question: ${questionId} with correct answer ID: ${correctAnswerId}`);
let questionNode = document.getElementById(questionId);
if (questionNode) {
console.log(`Found question node for ${questionId}`);
let correctAnswerInput = questionNode.querySelector(`#${questionId}_${correctAnswerId}`); // question_123_answer_456
if (correctAnswerInput) {
if (answers[questionId].isIncorrect) {
correctAnswerInput.checked = true;
// console.log(`Marked correct answer with checked for ${questionId}_${correctAnswerId}`);
} else {
correctAnswerInput.click();
// console.log(`Selected correct answer ${questionId}_${correctAnswerId}`);
}
} else {
console.log(`Correct answer input not found ${questionId}_${correctAnswerId}`);
}
} else {
console.log(`Question node not found for ${questionId}`);
}
});
}
window.addEventListener('load', fillQuizWithAnswers);
})();