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Auto Refill Canvas Quizzes

Auto refill quizzes in canvas

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安装此脚本 
  1. // ==UserScript==
  2. // @name         Auto Refill Canvas Quizzes
  3. // @namespace    http://tampermonkey.net/
  4. // @version      v1.0.0
  5. // @description  Auto refill quizzes in canvas
  6. // @author       AdoreJc
  7. // @match        https://*.instructure.com/courses/*/quizzes/*/take
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=instructure.com
  9. // @license      MIT
  10. // @grant        none
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.  
  16.     async function fetchHighestScoreAttemptLink() {
  17.         try {
  18.             console.log("Getting attempts from " + window.location.pathname.replace('/take','/submission_versions'));
  19.             let response = await fetch(window.location.pathname.replace('/take','/submission_versions'), {
  20.                 method: 'GET',
  21.                 headers: {
  22.                     'Content-Type': 'application/x-www-form-urlencoded'
  23.                 }
  24.             });
  25.  
  26.             if (!response.ok) {
  27.                 throw new Error('Failed to fetch quiz attempt data');
  28.             }
  29.             let text = await response.text();
  30.             //console.log(text);
  31.             let parser = new DOMParser();
  32.             let doc = parser.parseFromString(text, 'text/html');
  33.  
  34.             let attempts = doc.querySelectorAll('table.ic-Table tbody tr');
  35.             if(!attempts){
  36.                 throw new Error('No attempts found');
  37.             }
  38.             console.log("Attempts: " + attempts);
  39.             let maxScore = -1;
  40.             let highestAttemptLink = '';
  41.  
  42.             attempts.forEach((attempt) => {
  43.                 let scoreText = attempt.querySelector('td:nth-child(3)').innerText.trim();
  44.                 let score = parseInt(scoreText.split(' ')[0]);
  45.                 console.log("Score: " + score);
  46.                 if (score > maxScore) {
  47.                     maxScore = score;
  48.                     let link = attempt.querySelector('a').getAttribute('href');
  49.                     highestAttemptLink = link;
  50.                 }
  51.             });
  52.  
  53.             if (highestAttemptLink) {
  54.                 console.log(`Found highest score attempt link: ${highestAttemptLink}`);
  55.                 return highestAttemptLink;
  56.             } else {
  57.                 throw new Error('No attempt link found');
  58.             }
  59.  
  60.         } catch (error) {
  61.             console.error('Error fetching highest score attempt link:', error);
  62.             return null;
  63.         }
  64.     }
  65.  
  66.     async function fetchPreviousQuizAnswers(attemptLink) {
  67.         try {
  68.             let response = await fetch(attemptLink, {
  69.                 method: 'Get',
  70.                 headers: {
  71.                     'Content-Type': 'application/x-www-form-urlencoded'
  72.                 }
  73.             });
  74.  
  75.             if (!response.ok) {
  76.                 throw new Error('Failed to fetch previous quiz data');
  77.             }
  78.  
  79.             let text = await response.text();
  80.             let parser = new DOMParser();
  81.             let doc = parser.parseFromString(text, 'text/html');
  82.  
  83.             let answers = {};
  84.             let questions = doc.querySelectorAll('.question_holder');
  85.             questions.forEach((question) => {
  86.                 let questionId = question.querySelector('.question').id;
  87.                 let selectedAnswer = question.querySelector('input[type="radio"][checked]');
  88.                 if (selectedAnswer) {
  89.                     let answerId = selectedAnswer.id.replace('-', '_');
  90.                     let isIncorrect = question.querySelector('.answer_arrow.incorrect');
  91.                     answers[questionId] = { answerId, isIncorrect};
  92.                 }
  93.             });
  94.  
  95.             console.log('Fetched answers:', answers);
  96.             return answers;
  97.  
  98.         } catch (error) {
  99.             console.error('Error fetching quiz answers:', error);
  100.             return {};
  101.         }
  102.     }
  103.  
  104.     async function fillQuizWithAnswers() {
  105.         let attemptLink = await fetchHighestScoreAttemptLink();
  106.         if (!attemptLink) return;
  107.  
  108.         let answers = await fetchPreviousQuizAnswers(attemptLink);
  109.  
  110.         Object.keys(answers).forEach((questionId) => {
  111.             let correctAnswerId = answers[questionId].answerId;
  112.             console.log(`Processing question: ${questionId} with correct answer ID: ${correctAnswerId}`);
  113.  
  114.             let questionNode = document.getElementById(questionId);
  115.             if (questionNode) {
  116.                 console.log(`Found question node for ${questionId}`);
  117.  
  118.                 let correctAnswerInput = questionNode.querySelector(`#${questionId}_${correctAnswerId}`); // question_123_answer_456
  119.                 if (correctAnswerInput) {
  120.                     if (answers[questionId].isIncorrect) {
  121.                         correctAnswerInput.checked = true;
  122.                         // console.log(`Marked correct answer with checked for ${questionId}_${correctAnswerId}`);
  123.                     } else {
  124.                         correctAnswerInput.click();
  125.                     // console.log(`Selected correct answer ${questionId}_${correctAnswerId}`);
  126.                     }
  127.                 } else {
  128.                     console.log(`Correct answer input not found ${questionId}_${correctAnswerId}`);
  129.                 }
  130.             } else {
  131.                 console.log(`Question node not found for ${questionId}`);
  132.             }
  133.         });
  134.     }
  135.  
  136.     window.addEventListener('load', fillQuizWithAnswers);
  137.  
  138. })();