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Add encode / decode hex, base64 button for Voz
// ==UserScript==
// @name Add Encode / Decode Button for Voz
// @namespace 0x4076696e63766e
// @version 0.7
// @description Add encode / decode hex, base64 button for Voz
// @author 0x4076696e63766e
// @match https://voz.vn/t/*
// @grant none
// @license GPL-3.0
// ==/UserScript==
/*
* Regex - Decode Script from https://greasyfork.org/en/scripts/504506-decode-hex-strings-on-voz
*/
(function () {
'use strict';
var $Editor = null;
var $BBMode = false;
function openDialog(encodeFunc, isDecode) {
const input = prompt("Nhập vào văn bản để mã hóa:");
if (input === null) return; // Người dùng đã hủy
if(isDecode){
var decoded = null;
if(input.match(/\b([0-9A-Fa-f]{2}\s*){4,}\b/g)) decoded = decodeHex(input)
if(input.match(/(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=|[A-Za-z0-9+\/]{4})/g)) decoded = decodeBase64(input)
openPopup(decoded);
return;
}
const encoded = encodeFunc(input);
pickEditor();
if ($Editor) {
if($Editor.tagName.toString() === 'DIV'){
$Editor.innerHTML += `<p>${encoded}</p>`;
}else{
$Editor.value += `\n${encoded}`;
}
}
}
function openPopup(decoded){
const newDiv = document.createElement(`div`);
newDiv.className = "overlay-container is-active";
newDiv.innerHTML = `
<div class="overlay" tabindex="-1" role="dialog" aria-hidden="false">
<div class="overlay-title">
<a class="overlay-titleCloser js-overlayClose" role="button" tabindex="0" aria-label="Close"></a>
😤
</div>
<div class="overlay-content">
<div class="block-container">
<div class="block-body">
<textarea class="input" style="min-height: 100px; max-height: 602px; padding: 10px 20px 20px; break-word; resize: none; height: 100px;">${decoded}</textarea>
</div>
</div>
</div>
</div>
`
document.body.appendChild(newDiv);
const closeButton = newDiv.querySelector('.js-overlayClose');
closeButton.addEventListener('click', () => {
document.body.removeChild(newDiv);
});
}
function decodeHex(hexString) {
hexString = hexString.replace(/\s+/g, '');
if (!/^[0-9A-Fa-f]{2,}$/.test(hexString)) return hexString;
let hexStr = '';
try {
for (let i = 0; i < hexString.length; i += 2) {
hexStr += String.fromCharCode(parseInt(hexString.substr(i, 2), 16));
}
if (/^[\x20-\x7E]*$/.test(hexStr) && hexStr.length > 3) {
return hexStr;
} else {
return hexString;
}
} catch {
return hexString;
}
}
function decodeBase64(base64String) {
if (!/^(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/.test(base64String)) return base64String;
try {
let binaryString = atob(base64String);
if (/^[\x20-\x7E]*$/.test(binaryString) && binaryString.length > 3) {
return binaryString;
} else {
return base64String;
}
} catch {
return base64String;
}
}
function hexEncode(str) {
return Array.from(str).map(char => char.charCodeAt(0).toString(16).padStart(2, '0')).join('');
}
function base64Encode(str) {
return btoa(unescape(encodeURIComponent(str)));
}
function pickEditor() {
const editorContainers = document.querySelectorAll('div.message-editorWrapper');
editorContainers.forEach(container => {
const textareaEditor = container.querySelector('textarea.input');
const bbEditor = container.querySelector('div.fr-element');
const bbCodeMode = container.querySelector('#xfBbCode-1');
if(bbCodeMode) $BBMode = bbCodeMode.classList.contains('fr-active')
$Editor = ($BBMode) ? textareaEditor : bbEditor
});
}
function createButton(label, callback) {
const button = document.createElement('div');
button.className = 'button--primary button';
button.style.marginRight = '5px';
button.textContent = label;
button.onclick = callback;
return button;
}
function insertHelper(extraDivs) {
if (document.querySelectorAll("div.encode-helper").length > 0) return;
extraDivs.forEach(extraDiv => {
const newDiv = document.createElement('div');
newDiv.className = 'formButtonGroup encode-helper';
newDiv.appendChild(createButton('Hex', () => openDialog(hexEncode)));
newDiv.appendChild(createButton('Base64', () => openDialog(base64Encode)));
newDiv.appendChild(createButton('Decode', () => openDialog(null, true)));
extraDiv.parentNode.insertBefore(newDiv, extraDiv.nextSibling);
});
}
function main() {
const elements = document.querySelectorAll('div.formButtonGroup');
insertHelper(elements);
}
function initializeObserver() {
new MutationObserver(main).observe(document.documentElement, { childList: true, subtree: true });
}
document.readyState === 'loading'
? document.addEventListener('DOMContentLoaded', initializeObserver)
: initializeObserver();
})();