// ==UserScript==
// @name duohacker
// @namespace https://www.duolingo.com
// @homepageURL https://github.com/elvisoliveira/duohacker
// @supportURL https://github.com/elvisoliveira/duohacker/issues
// @version 1.0.11
// @description there's cheats for Duolingo? what
// @author elvisoliveira
// @match https://www.duolingo.com/practice*
// @match https://www.duolingo.com/learn*
// @license MIT
// @grant none
// @run-at document-end
// ==/UserScript==
const keys = () => {
const d = (t) => `[data-test="${t}"]`;
return {
AUDIO_BUTTON: d('audio-button'),
BLAME_INCORRECT: d('blame blame-incorrect'),
CHALLENGE: '[data-test~="challenge"]',
CHALLENGE_CHOICE: d('challenge-choice'),
CHALLENGE_CHOICE_CARD: d('challenge-choice-card'),
CHALLENGE_JUDGE_TEXT: d('challenge-judge-text'),
CHALLENGE_LISTEN_SPELL: d('challenge challenge-listenSpell'),
CHALLENGE_LISTEN_TAP: d('challenge-listenTap'),
CHALLENGE_TAP_TOKEN: '[data-test*="challenge-tap-token"]',
CHALLENGE_TAP_TOKEN_TEXT: d('challenge-tap-token-text'),
CHALLENGE_TEXT_INPUT: d('challenge-text-input'),
CHALLENGE_TRANSLATE_INPUT: d('challenge-translate-input'),
CHALLENGE_TYPE_CLOZE: d('challenge challenge-typeCloze'),
CHALLENGE_TYPE_CLOZE_TABLE: d('challenge challenge-typeClozeTable'),
CHARACTER_MATCH: d('challenge challenge-characterMatch'),
PLAYER_NEXT: [d('player-next'), d('story-start')].join(','),
PLAYER_SKIP: d('player-skip'),
STORIES_CHOICE: d('stories-choice'),
STORIES_ELEMENT: d('stories-element'),
STORIES_PLAYER_DONE: d('stories-player-done'),
STORIES_PLAYER_NEXT: d('stories-player-continue'),
STORIES_PLAYER_START: d('story-start'),
TYPE_COMPLETE_TABLE: d('challenge challenge-typeCompleteTable'),
WORD_BANK: d('word-bank'),
PLUS_NO_THANKS: d('plus-no-thanks'),
PRACTICE_HUB_AD_NO_THANKS_BUTTON: d('practice-hub-ad-no-thanks-button')
};
};
const TIME_OUT = 1500;
window.dynamicInput = (element, text) => {
const tag = element.tagName === 'SPAN' ? 'textContent' : 'value';
const input = element;
const lastValue = input[tag];
input[tag] = text;
const event = new Event('input', { bubbles: true });
event.simulated = true;
const tracker = input._valueTracker;
if (tracker) {
tracker.setValue(lastValue);
}
input.dispatchEvent(event);
};
window.clickEvent = new MouseEvent('click', {
view: window,
bubbles: true,
cancelable: true,
});
// https://stackoverflow.com/a/39165137
// https://github.com/Venryx/mobx-devtools-advanced/blob/master/Docs/TreeTraversal.md
window.getReactFiber = (dom) => {
const key = Object.keys(dom).find((key) => {
return (
key.startsWith('__reactFiber$') || // react 17+
key.startsWith('__reactInternalInstance$') // react <17
);
});
return dom[key];
};
// Gets Challenge Object
function getElementIndex(element) {
let result = null;
if (element instanceof Array) {
for (let i = 0; i < element.length; i++) {
result = getElementIndex(element[i]);
if (result) break;
}
} else {
for (let prop in element) {
if (prop == 'challenge') {
if (typeof element[prop] == 'object')
return element;
return element[prop];
}
if (element[prop] instanceof Object || element[prop] instanceof Array) {
result = getElementIndex(element[prop]);
if (result) break;
}
}
}
return result;
}
function getProps(element) {
let propsClass = Object.keys(element).filter((att) => /^__reactProps/g.test(att))[0];
return element[propsClass];
}
// Gets the Challenge
function getChallenge() {
const dataTestDOM = document.querySelectorAll(keys().CHALLENGE);
if (dataTestDOM.length > 0) {
let current = 0;
for (let i = 0; i < dataTestDOM.length; i++) {
if (dataTestDOM[i].childNodes.length > 0)
current = i;
}
const currentDOM = dataTestDOM[current];
const propsValues = getProps(currentDOM);
const { challenge } = getElementIndex(propsValues);
return challenge;
}
}
// Solves the Challenge
function classify() {
const challenge = getChallenge();
if (!challenge) return;
window.actions[challenge.type](challenge);
}
function pressEnter() {
const clickEvent = new MouseEvent('click', {
view: window,
bubbles: true,
cancelable: false,
});
// Stops when an answer is incorrect
const isIncorrect = document.querySelectorAll(keys().BLAME_INCORRECT).length > 0;
if (isIncorrect) {
terminal.log('Incorrect, stopped');
clearInterval(mainInterval);
}
const isPlayerNext = document.querySelector(keys().PLAYER_NEXT);
if (isPlayerNext !== null)
isPlayerNext.dispatchEvent(clickEvent);
if (/learn/gi.test(window.location.href) == true)
window.location.replace('https://www.duolingo.com/practice');
}
// Main Function
function main() {
try {
const isPlayerNext = document.querySelectorAll(keys().PLAYER_NEXT);
const isAdScreen = document.querySelector([keys().PLUS_NO_THANKS, keys().PRACTICE_HUB_AD_NO_THANKS_BUTTON].join(','));
if (isPlayerNext !== null && isPlayerNext.length > 0) {
if (isPlayerNext[0].getAttribute('aria-disabled') === 'true')
classify();
} else if (isAdScreen !== null && isAdScreen.length > 0) {
isAdScreen.click();
}
setTimeout(pressEnter, 150); // pressEnter();
} catch (e) {
// terminal.log(e);
}
}
// To not mess duolingo's own log
function setConsole() {
const iframe = document.createElement('iframe');
iframe.id = 'logger';
iframe.style.display = 'none';
document.body.appendChild(iframe);
window.terminal = iframe.contentWindow.console;
}
// Calls main()
let mainInterval;
function solveChallenge() {
if (document.getElementById('logger') == null)
setConsole();
// Check if its a Skill / Alphabet / Checkpoint URL
if (/lesson|practice/gi.test(window.location.href) == true) {
clearInterval(mainInterval);
mainInterval = setInterval(main, TIME_OUT);
}
if (/learn/gi.test(window.location.href) == true)
window.location.replace('https://www.duolingo.com/practice');
}
(solveChallenge)();
window.keys = keys();
window.actions = {};
window.actions.assist =
window.actions.definition = (challenge) => {
const { choices, correctIndex } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_CHOICE);
tokens.forEach((e, i) => {
if (i == correctIndex)
e.dispatchEvent(clickEvent);
});
return { choices, correctIndex };
};
window.actions.characterMatch = (challenge) => {
const { pairs } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN);
pairs.forEach((pair) => {
for (let i = 0; i < tokens.length; i++) {
if (
tokens[i].innerText === pair.fromToken ||
tokens[i].innerText === pair.learningToken
) {
tokens[i].dispatchEvent(clickEvent);
}
}
});
return { pairs };
};
window.actions.select =
window.actions.gapFill =
window.actions.readComprehension =
window.actions.selectPronunciation =
window.actions.listenComprehension =
window.actions.characterSelect = (challenge) => {
const { choices, correctIndex } = challenge;
const { CHALLENGE_CHOICE } = window.keys;
document.querySelectorAll(CHALLENGE_CHOICE)[correctIndex].dispatchEvent(clickEvent);
return { choices, correctIndex };
};
window.actions.completeReverseTranslation = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TEXT_INPUT);
let i = 0;
displayTokens.forEach((token) => {
if (token.isBlank) {
dynamicInput(tokens[i], token.text);
i++;
}
});
return { displayTokens };
};
window.actions.characterIntro =
window.actions.dialogue = (challenge) => {
const { choices, correctIndex } = challenge;
document.querySelectorAll(window.keys.CHALLENGE_JUDGE_TEXT)[correctIndex].dispatchEvent(clickEvent);
return { choices, correctIndex };
};
window.actions.judge = (challenge) => {
const { correctIndices } = challenge;
document.querySelectorAll(window.keys.CHALLENGE_JUDGE_TEXT)[correctIndices[0]].dispatchEvent(clickEvent);
return { correctIndices };
};
window.actions.listen = (challenge) => {
const { prompt } = challenge;
let textInputElement = document.querySelectorAll(window.keys.CHALLENGE_TRANSLATE_INPUT)[0];
dynamicInput(textInputElement, prompt);
return { prompt };
};
window.actions.listenComplete = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TEXT_INPUT);
let i = 0;
displayTokens.forEach((token) => {
if (token.isBlank)
dynamicInput(tokens[i], token.text);
});
return { displayTokens };
};
window.actions.listenIsolation = (challenge) => {
const { correctIndex } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_CHOICE);
tokens.forEach((e, i) => {
if (i == correctIndex) {
e.dispatchEvent(clickEvent);
}
});
return { correctIndex };
};
window.actions.listenMatch = (challenge) => {
const { pairs } = challenge;
const tokens = document.querySelectorAll('button'.concat(window.keys.CHALLENGE_TAP_TOKEN));
for (let i = 0; i <= 3; i++) {
const dataset = getReactFiber(tokens[i]).return.child.stateNode.dataset.test;
const word = dataset.split('-')[0];
tokens[i].dispatchEvent(clickEvent);
for (let j = 4; j <= 7; j++) {
const text = tokens[j].querySelector(window.keys.CHALLENGE_TAP_TOKEN_TEXT).innerText;
if (/\s/g.test(dataset) && text.endsWith(` ${word}`)) {
tokens[j].dispatchEvent(clickEvent);
} else if (text == word) {
tokens[j].dispatchEvent(clickEvent);
}
}
}
return { pairs }
};
window.actions.listenSpell = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_LISTEN_SPELL.concat(' input[type="text"]:not([readonly])'));
let i = 0;
displayTokens.forEach((word) => {
if (!isNaN(word.damageStart)) {
for (let c of word.text.substring(word.damageStart, word.damageEnd ?? word.text.length)) {
dynamicInput(tokens[i], c);
i++;
}
}
});
return { displayTokens };
};
window.actions.listenTap = (challenge) => {
const { correctTokens } = challenge;
const tokens = Array.from(document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN)).filter(e => e.tagName === 'BUTTON');
for (let word of correctTokens) {
for (let i of Object.keys(tokens)) {
if (tokens[i].innerText === word) {
tokens[i].dispatchEvent(clickEvent);
tokens.splice(i, 1);
break;
}
}
}
return { correctTokens };
};
window.actions.match = (challenge) => {
const { pairs } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN_TEXT);
pairs.forEach((pair) => {
for (let i = 0; i < tokens.length; i++) {
if (
tokens[i].innerText === pair.fromToken ||
tokens[i].innerText === pair.learningToken
) {
tokens[i].dispatchEvent(clickEvent);
}
}
});
return { pairs };
};
window.actions.name = (challenge) => {
const { correctSolutions, articles, grader } = challenge;
let tokens = document.querySelectorAll(window.keys.CHALLENGE_TEXT_INPUT);
if (articles) {
correctSolutions.forEach((solution) => {
solution = solution.split(' ');
solution.forEach((word) => {
let i = articles.indexOf(word);
if (i > -1) {
document.querySelectorAll(window.keys.CHALLENGE_CHOICE)[i].dispatchEvent(clickEvent);
solution.splice(solution.indexOf(word), 1);
dynamicInput(tokens[0], solution.join(' '));
}
});
});
} else {
correctSolutions.forEach((solution) => {
dynamicInput(tokens[0], solution);
});
}
return { correctSolutions, articles, grader };
};
window.actions.partialReverseTranslate = (challenge) => {
const { displayTokens, grader } = challenge;
let tokens = document.querySelectorAll('[contenteditable=true]');
let value = '';
displayTokens.forEach((token) => {
if (token.isBlank)
value = value + token.text;
});
dynamicInput(tokens[0], value);
return { displayTokens, grader };
};
window.actions.speak = (challenge) => {
const { prompt } = challenge;
document.querySelectorAll(window.keys.PLAYER_SKIP)[0].dispatchEvent(clickEvent);
return { prompt };
};
window.actions.selectTranscription = (challenge) => {
const { choices, correctIndex } = challenge;
document.querySelectorAll(window.keys.CHALLENGE_JUDGE_TEXT)[correctIndex].dispatchEvent(clickEvent);
return { choices, correctIndex };
};
window.actions.tapCloze = (challenge) => {
const { choices, correctIndices } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN);
for (let i = 0; i < correctIndices.length; i++) {
choices.forEach((value, j) => {
if (correctIndices[i] == j) {
for (let k = 0; k < tokens.length; k++) {
if (tokens[k].innerText == value) {
tokens[k].dispatchEvent(clickEvent);
}
}
}
});
}
return { choices, correctIndices };
};
window.actions.tapClozeTable = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN_TEXT);
displayTokens.forEach((line) => {
line.forEach((column) => {
column.forEach((word) => {
if (word.damageStart) {
tokens.forEach((token) => {
if (token.innerText == word.text.substring(word.damageStart, word.text.length)) {
token.dispatchEvent(clickEvent);
}
});
}
});
});
});
return { displayTokens };
};
window.actions.tapComplete = (challenge) => {
const { choices, correctIndices } = challenge;
const tokens = document.querySelectorAll(window.keys.WORD_BANK.concat(' ', window.keys.CHALLENGE_TAP_TOKEN_TEXT));
correctIndices.forEach((i) => {
tokens[i].dispatchEvent(clickEvent);
});
return { choices, correctIndices };
};
window.actions.tapCompleteTable = (challenge) => {
const { choices, displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.WORD_BANK.concat(' ', window.keys.CHALLENGE_TAP_TOKEN));
displayTokens.forEach((line) => {
line.forEach((column) => {
if (column[0].isBlank == true) {
tokens.forEach((e) => {
if (e.innerText == column[0].text) {
e.dispatchEvent(clickEvent);
}
});
}
});
});
return { choices, displayTokens };
};
window.actions.translate = (challenge) => {
const { correctTokens, correctSolutions } = challenge;
if (correctTokens) {
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TAP_TOKEN_TEXT);
let ignoreTokeIndexes = [];
for (let correctTokenIndex in correctTokens) {
for (let tokenIndex in tokens) {
const token = tokens[tokenIndex];
if (ignoreTokeIndexes.includes(tokenIndex)) continue;
if (token.innerText === correctTokens[correctTokenIndex]) {
token.dispatchEvent(clickEvent);
ignoreTokeIndexes.push(tokenIndex);
break;
}
}
}
} else if (correctSolutions) {
let textInputElement = document.querySelectorAll(
window.keys.CHALLENGE_TRANSLATE_INPUT
)[0];
dynamicInput(textInputElement, correctSolutions[0]);
}
return { correctTokens };
};
window.actions.typeCloze = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TYPE_CLOZE.concat(' input'));
let i = 0;
displayTokens.forEach((word) => {
if (word.damageStart) {
dynamicInput(tokens[i], word.text.substring(word.damageStart, word.text.length));
i++;
}
});
return { displayTokens };
};
window.actions.typeClozeTable = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.CHALLENGE_TYPE_CLOZE_TABLE.concat(' input'));
let i = 0;
displayTokens.forEach((line) => {
line.forEach((column) => {
column.forEach((word) => {
if (word.damageStart) {
dynamicInput(tokens[i], word.text.substring(word.damageStart, word.text.length));
i++;
}
});
});
});
return { displayTokens };
};
window.actions.typeCompleteTable = (challenge) => {
const { displayTokens } = challenge;
const tokens = document.querySelectorAll(window.keys.TYPE_COMPLETE_TABLE.concat(' input'));
let index = 0;
displayTokens.forEach((line) => {
line.forEach((column) => {
if (column[0].isBlank == true) {
dynamicInput(tokens[index], column[0].text);
index++;
}
});
});
return { displayTokens };
};
