Decode Base64-encoded text in Reddit posts and convert URLs to clickable links.
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// ==UserScript==
// @name Reddit B64 Decoder
// @namespace https://greasyfork.org/es/scripts/476028
// @version 1.5.2
// @description Decode Base64-encoded text in Reddit posts and convert URLs to clickable links.
// @author Shu2Ouma
// @icon https://www.redditstatic.com/shreddit/assets/favicon/192x192.png
// @license MIT
// @match https://*.reddit.com/r/*
// @grant none
// ==/UserScript==
// Function to decode Base64-encoded text and convert URLs to clickable links
function decodeBase64AndLinkify(text) {
const base64Regex = /([A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)*/g;
return text.replace(base64Regex, match => {
try {
const decoded = atob(match);
if (decoded.includes('https://') || decoded.includes('http://')) {
return (
decoded
.replace(/[\r\n]+/g, '<br /><br />')
.replace(/(https?:\/\/[^\s<]+)/g, `<a href="$1" target="_blank" rel="noreferrer noopener" style='text-decoration: underline #FF4500; text-underline-offset: 2px;'>$1</a>`)
);
}
} catch (error) {
console.error(`Error decoding Base64: ${match}`, error);
}
return match;
});
}
// Function to process Reddit posts on the page
function processRedditPosts(container) {
const postContents = container.querySelectorAll('p');
postContents.forEach(post => {
const decodedText = decodeBase64AndLinkify(post.textContent);
if (decodedText !== post.textContent) {
post.innerHTML = decodedText;
}
});
}
// Execute the script with a 2.0-second delay after the page has finished loading
function initialProcess() {
const container = document.querySelector('#main-content');
if (container) {
processRedditPosts(container);
}
}
// Handle click events to check for new elements
function handleClick() {
setTimeout(() => {
const container = document.querySelector('#main-content');
if (container) {
processRedditPosts(container);
}
}, 1000); // Delay to ensure content has loaded
}
// Observe changes in the DOM within #main-content
const observer = new MutationObserver(mutationsList => {
mutationsList.forEach(mutation => {
if (mutation.addedNodes.length > 0) {
mutation.addedNodes.forEach(node => {
if (node instanceof HTMLElement) {
const container = node.closest('#main-content');
if (container) {
processRedditPosts(container);
}
}
});
}
});
});
// Start observing changes in the #main-content container
const mainContentContainer = document.querySelector('#main-content');
if (mainContentContainer) {
observer.observe(mainContentContainer, { childList: true, subtree: true });
}
// Add event listener for clicks to check for new elements
document.addEventListener('click', handleClick);
// Initial processing after the page loads
window.addEventListener('load', () => {
setTimeout(initialProcess, 2000);
});