// ==UserScript==
// @name MegaCloud Auto Password Decrypter
// @namespace MGDEC_V1
// @version 1.0
// @description try to resolve password in mega cloud
// @author Laria
// @match https://mega.nz/#P*
// @match https://mega.io/#P*
// @icon https://mega.nz/favicon.ico?v=3
// @license MIT
// @grant none
// ==/UserScript==
/*
* == Change log ==
* 1.0 - Release
*/
//utility
const currentDate = new Date();
function zeroPad(num, numZeros) {
var n = Math.abs(num);
var zeros = Math.max(0, numZeros - Math.floor(n).toString().length );
var zeroString = Math.pow(10,zeros).toString().substr(1);
if( num < 0 ) {
zeroString = '-' + zeroString;
}
return zeroString+n;
}
//script const db
const mapdConstDB = {
//password dictionary, input common password or your own password
//you must change here.
passwordDict: [
'password01',
'password02',
'password03',
'password04',
'password05',
'password06',
],
//try to resolve decrypt time interval, def:50
timeInterval: 50, //logging prefix
logPrompt: {
default: '['+GM.info.script.namespace+']',
},
};
//script internal db
let mapdInternalDB = {
elements: { //define after load
container: null,
passwordVisible: null,
inputArea: null,
decryptButton: null,
megaBanner: null,
decryptionProgress: null,
},
isValidation: false,
};
//utility 2
const delay = ms => new Promise(resolve => setTimeout(resolve, ms));
//https://stackoverflow.com/questions/5525071
function waitForElm(selector) {
return new Promise(resolve => {
if (document.querySelector(selector)) {
return resolve(document.querySelector(selector));
}
const observer = new MutationObserver(mutations => {
if (document.querySelector(selector)) {
observer.disconnect();
resolve(document.querySelector(selector));
}
});
// If you get "parameter 1 is not of type 'Node'" error, see https://stackoverflow.com/a/77855838/492336
observer.observe(document.body, {
childList: true,
subtree: true
});
});
}
//input given password and resolve it
async function tryToDecrypt(pwd) {
//remove modal valid msg
await mapdInternalDB.elements.inputArea.dispatchEvent(new Event('input'));
//fill password field
mapdInternalDB.elements.inputArea.value = pwd;
//click confirm
await mapdInternalDB.elements.decryptButton.click();
}
//await validation
async function waitForValidation() {
let timeCnt = 0;
while(mapdInternalDB.isValidation) {
if (timeCnt > 100) break;
timeCnt ++;
await delay(mapdConstDB.timeInterval);
}
}
//decrypt procedure
async function decrypt() {
//mutation observer - decrypt process
const observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
mapdInternalDB.isValidation = !mutation.target.classList.contains('hidden');
});
});
observer.observe(mapdInternalDB.elements.decryptionProgress, {
attributes: true,
});
//pre-process
await delay(50);
//remove view
await mapdInternalDB.elements.passwordVisible.click();
//remove default input message
mapdInternalDB.elements.inputArea.dispatchEvent(new Event('focus'));
//main process
let tryCount = 0;
const startTime = performance.now();
for (let i = 0; i < mapdConstDB.passwordDict.length; i++) {
window.console.log(mapdConstDB.logPrompt.default, 'no.', i, ', try:', mapdConstDB.passwordDict[i]);
await tryToDecrypt(mapdConstDB.passwordDict[i]);
if (i > 0) await waitForValidation();
//correct password
if (mapdInternalDB.elements.container.classList.contains('hidden')) {
const endTime = performance.now();
const durationSec = parseFloat((Math.ceil((endTime-startTime) * 100) / 100000).toFixed(2));
window.console.log(mapdConstDB.logPrompt.default, 'decrypt finished.');
window.console.log(mapdConstDB.logPrompt.default, 'expected password :', mapdConstDB.passwordDict[i]);
window.console.log(mapdConstDB.logPrompt.default, 'tries:', tryCount, ', duration:', durationSec, 'sec');
return;
}
tryCount ++;
}
const endTime = performance.now();
const durationSec = parseFloat((Math.ceil((endTime-startTime) * 100) / 100000).toFixed(2));
//if resolve failed,
window.console.log(mapdConstDB.logPrompt.default, 'cannot find password in dict..');
window.console.log(mapdConstDB.logPrompt.default, 'tries:', tryCount, ', duration:', durationSec, 'sec');
//replace first dict password, show summary, focus input area
await delay(50);
mapdInternalDB.elements.inputArea.value = mapdConstDB.passwordDict[0];
await delay(20);
mapdInternalDB.elements.megaBanner.innerHTML = `<div><b>Auto Decryption Failed</b><br><i style="font-size: 82.5%;">Please input manually..</i><br><span style="font-size: 78.5%;">( tries: ${tryCount}, dur: ${durationSec} sec )</span></div>`;
await mapdInternalDB.elements.inputArea.focus();
}
//register elements
function registerElements() {
mapdInternalDB.elements.container = document.querySelector('.password-dialog');
mapdInternalDB.elements.passwordVisible = mapdInternalDB.elements.container.querySelector('.pass-visible');
mapdInternalDB.elements.inputArea = mapdInternalDB.elements.container.querySelector('#password-decrypt-input');
mapdInternalDB.elements.decryptButton = mapdInternalDB.elements.container.querySelector('.decrypt-link-button');
mapdInternalDB.elements.megaBanner = mapdInternalDB.elements.container.querySelector('.mega-banner');
mapdInternalDB.elements.decryptionProgress = mapdInternalDB.elements.container.querySelector('.decryption-in-progress');
}
async function rootProcedure() {
window.console.log(mapdConstDB.logPrompt.default,'V',GM.info.script.version, '-', GM.info.script.name);
window.console.log(mapdConstDB.logPrompt.default, '- wait modal..');
//await password modal
await waitForElm('.password-dialog');
window.console.log(mapdConstDB.logPrompt.default,'modal loaded, decrypt ready');
//register modal elements
registerElements();
//decrypt start
await decrypt();
window.console.log(mapdConstDB.logPrompt.default,'task finished.');
}
window.addEventListener('load', () => setTimeout(rootProcedure, 100));
