Convert HEX to text, in a post or comment on Facebook.
// ==UserScript==
// @name Facebook HEX
// @name:vi Facebook HEX
// @namespace https://lelinhtinh.github.io
// @description Convert HEX to text, in a post or comment on Facebook.
// @description:vi Chuyển đổi HEX thành URL hoặc text, trong bài viết hoặc bình luận trên Facebook.
// @version 1.0.0
// @icon https://i.imgur.com/oz5CjJe.png
// @author lelinhtinh
// @oujs:author baivong
// @license MIT; https://baivong.mit-license.org/license.txt
// @match https://*.facebook.com/*
// @require https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js?v=a834d46
// @noframes
// @supportURL https://github.com/lelinhtinh/Userscript/issues
// @run-at document-idle
// @grant GM.openInTab
// @grant GM_openInTab
// ==/UserScript==
/**
* If `false`, open in new tab after clicking on decoded link.
* @type {boolean} true or false
*/
const COPY_ONLY = false;
/**
* Makes the tab being opened inside a incognito mode/private mode window.
* Currently, only works with Tampermonkey BETA.
* @type {boolean} true or false
*/
const PRIVATE = true;
/* === DO NOT CHANGE === */
function fallbackCopyTextToClipboard(text) {
let textArea = document.createElement('textarea');
textArea.value = text;
textArea.style.top = '0';
textArea.style.left = '0';
textArea.style.position = 'fixed';
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
document.execCommand('copy');
} catch (err) {
console.error('Fallback: Oops, unable to copy', err);
}
document.body.removeChild(textArea);
}
function copyTextToClipboard(text) {
if (!navigator.clipboard) {
fallbackCopyTextToClipboard(text);
return;
}
navigator.clipboard.writeText(text).catch((err) => {
console.error('Async: Could not copy text', err);
});
}
function validURL(url) {
try {
const uri = new URL(url);
return !!uri.host && uri.host.includes('.');
} catch (e) {
return false;
}
}
function cleanWordBreak(post) {
if (post.querySelector('.word_break') !== null) {
post.querySelectorAll('wbr').forEach((e) => e.remove());
post.querySelectorAll('span').forEach((span) => {
if (span.querySelector('span, img') !== null) return;
const text = document.createTextNode(span.textContent);
span.parentNode.replaceChild(text, span);
});
}
}
function renderResult(post, data) {
const { content, result } = data;
if (!content || !result) return;
copyTextToClipboard(result);
post.innerHTML = post.innerHTML.replace(
content,
`
<strong
class="fb-hex${validURL(result) ? ' fb-hex-link' : ''}"
title="Copied to clipboard${COPY_ONLY ? '' : '\nClick to open in new tab'}"
style="cursor:pointer"
>${result}</strong>
`,
);
}
function handle(post) {
if (post.querySelector('.fb-hex') !== null) return;
cleanWordBreak(post);
const handleURL = URL.createObjectURL(
new Blob(
[
'(',
function () {
self.onmessage = (e) => {
function hex2ascii(hex) {
if (!(typeof hex === 'number' || typeof hex == 'string')) return '';
hex = hex.toString().replace(/\s+/gi, '');
const stack = [];
for (let i = 0; i < hex.length; i += 2) {
const code = parseInt(hex.substr(i, 2), 16);
if (!isNaN(code) && code !== 0) {
stack.push(String.fromCharCode(code));
}
}
return stack.join('');
}
function getResult(content) {
content = content.match(/\b[a-f0-9\s]{12,}\b/i);
if (content === null) return {};
content = content[0].trim();
const result = hex2ascii(content);
return { content, result };
}
self.postMessage(getResult(e.data));
};
}.toString(),
')()',
],
{
type: 'application/javascript',
},
),
);
const worker = new Worker(handleURL);
worker.onmessage = (e) => {
if (!e.data) return;
renderResult(post, e.data);
};
worker.postMessage(post.textContent);
}
function getPost(e) {
const target = e.target;
if (target.getAttribute('role') === 'button') return;
const role = target.closest('[role]');
if (role.getAttribute('role') !== 'article') return;
const post = target.closest('p, span, [dir="auto"], [data-ft] > div[style]');
if (post === null) return;
const parent = post.parentNode;
if (parent.querySelector('.word_break') !== null) {
handle(parent);
return;
}
handle(post);
}
document.addEventListener('click', getPost);
function decodedClicking(e) {
const target = e.target;
if (!target.classList.contains('fb-hex')) return;
const result = target.textContent;
copyTextToClipboard(result);
if (COPY_ONLY) return;
if (!target.classList.contains('fb-hex-link')) return;
GM.openInTab(result, {
active: true,
insert: true,
incognito: PRIVATE,
});
}
document.addEventListener('click', decodedClicking);